As filed with the Securities and Exchange Commission on November 28, 2017

1933 Act Registration No. 333-140895

1940 Act Registration No. 811-22019

United States

Securities and Exchange Commission

Washington, D.C. 20549

Form N-1A

Registration Statement Under the Securities Act of 1933	[ ]
Pre-Effective Amendment No. __	[ ]
Post-Effective Amendment No. 36	[X]
and/or
Registration Statement Under the Investment Company Act of 1940	[ ]
Amendment No. 39	[X]

First Trust Exchange-Traded AlphaDEX^® Fund

(Exact name of registrant as specified in charter)

120 East Liberty Drive, Suite 400

Wheaton, Illinois 60187

(Address of Principal Executive Offices) (Zip Code)

Registrant’s Telephone Number, including Area Code: (800) 621-1675

W. Scott Jardine, Esq., Secretary

First Trust Exchange-Traded AlphaDEX^® Fund

First Trust Advisors L.P.

120 East Liberty Drive, Suite 400

Wheaton, Illinois 60187

(Name and Address of Agent for Service)

Copy to:

Eric F. Fess, Esq.

Chapman and Cutler LLP

111 West Monroe Street

Chicago, Illinois 60603

It is proposed that this filing will become effective (check appropriate box):

[ ] immediately upon filing pursuant to paragraph (b)

[X] on December 1, 2017 pursuant to paragraph (b)

[ ] 60 days after filing pursuant to paragraph (a)(1)

[ ] on (date) pursuant to paragraph (a)(1)

[ ] 75 days after filing pursuant to paragraph (a)(2)

[ ] on (date) pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

[ ] this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

Contents of Post-Effective Amendment No. 36

This Registration Statement comprises the following papers and contents:

The Facing Sheet

Part A - Prospectus for First Trust Consumer Discretionary AlphaDEX^® Fund, First Trust Consumer Staples AlphaDEX^® Fund, First Trust Energy AlphaDEX^® Fund, First Trust Financials AlphaDEX^® Fund, First Trust Health Care AlphaDEX^® Fund, First Trust Industrials/Producer Durables AlphaDEX^® Fund, First Trust Materials AlphaDEX^® Fund, First Trust Technology AlphaDEX^® Fund, First Trust Utilities AlphaDEX^® Fund, First Trust Large Cap Core AlphaDEX^® Fund, First Trust Large Cap Growth AlphaDEX^® Fund, First Trust Large Cap Value AlphaDEX^® Fund, First Trust Mega Cap AlphaDEX^® Fund, First Trust Mid Cap Core AlphaDEX^® Fund, First Trust Mid Cap Growth AlphaDEX^® Fund, First Trust Mid Cap Value AlphaDEX^® Fund, First Trust Multi Cap Growth AlphaDEX^® Fund, First Trust Multi Cap Value AlphaDEX^® Fund, First Trust Small Cap Core AlphaDEX^® Fund, First Trust Small Cap Growth AlphaDEX^® Fund and First Trust Small Cap Value AlphaDEX^® Fund

Part B - Statement of Additional Information for First Trust Consumer Discretionary AlphaDEX^® Fund, First Trust Consumer Staples AlphaDEX^®Fund, First Trust Energy AlphaDEX^® Fund, First Trust Financials AlphaDEX^® Fund, First Trust Health Care AlphaDEX^® Fund, First Trust Industrials/Producer Durables AlphaDEX^® Fund, First Trust Materials AlphaDEX^® Fund, First Trust Technology AlphaDEX^® Fund, First Trust Utilities AlphaDEX^®Fund, First Trust Large Cap Core AlphaDEX^® Fund, First Trust Large Cap Growth AlphaDEX^® Fund, First Trust Large Cap Value AlphaDEX^® Fund, First Trust Mega Cap AlphaDEX^® Fund, First Trust Mid Cap Core AlphaDEX^® Fund, First Trust Mid Cap Growth AlphaDEX^® Fund, First Trust Mid Cap Value AlphaDEX^®Fund, First Trust Multi Cap Growth AlphaDEX^® Fund, First Trust Multi Cap Value AlphaDEX^® Fund, First Trust Small Cap Core AlphaDEX^® Fund, First Trust Small Cap Growth AlphaDEX^® Fund and First Trust Small Cap Value AlphaDEX^® Fund

Part C - Other Information

Signatures

Index to Exhibits

Exhibits

First Trust
Exchange-Traded AlphaDEX® Fund

Prospectus

FUND NAME	TICKER SYMBOL	EXCHANGE
ALPHADEX^® SECTOR FUNDS
First Trust Consumer Discretionary AlphaDEX^® Fund	FXD	NYSE Arca
First Trust Consumer Staples AlphaDEX^® Fund	FXG	NYSE Arca
First Trust Energy AlphaDEX^® Fund	FXN	NYSE Arca
First Trust Financials AlphaDEX^® Fund	FXO	NYSE Arca
First Trust Health Care AlphaDEX^® Fund	FXH	NYSE Arca
First Trust Industrials/Producer Durables AlphaDEX^® Fund	FXR	NYSE Arca
First Trust Materials AlphaDEX^® Fund	FXZ	NYSE Arca
First Trust Technology AlphaDEX^® Fund	FXL	NYSE Arca
First Trust Utilities AlphaDEX^® Fund	FXU	NYSE Arca
ALPHADEX^® STYLE FUNDS
First Trust Large Cap Core AlphaDEX^® Fund	FEX	Nasdaq
First Trust Large Cap Growth AlphaDEX^® Fund	FTC	Nasdaq
First Trust Large Cap Value AlphaDEX^® Fund	FTA	Nasdaq
First Trust Mega Cap AlphaDEX^® Fund	FMK	Nasdaq
First Trust Mid Cap Core AlphaDEX^® Fund	FNX	Nasdaq
First Trust Mid Cap Growth AlphaDEX^® Fund	FNY	Nasdaq
First Trust Mid Cap Value AlphaDEX^® Fund	FNK	Nasdaq
First Trust Multi Cap Growth AlphaDEX^® Fund	FAD	Nasdaq
First Trust Multi Cap Value AlphaDEX^® Fund	FAB	Nasdaq
First Trust Small Cap Core AlphaDEX^® Fund	FYX	Nasdaq
First Trust Small Cap Growth AlphaDEX^® Fund	FYC	Nasdaq
First Trust Small Cap Value AlphaDEX^® Fund	FYT	Nasdaq

Each of the funds listed above under AlphaDEX^® Sector Funds (each a “Fund,” and collectively, the “AlphaDEX^® Sector Funds”) lists and principally trades its shares on NYSE Arca, Inc. (“NYSE Arca” or an “Exchange”). Each of the funds listed above under AlphaDEX^® Style Funds (each a “Fund,” and collectively, the “AlphaDEX^® Style Funds”) lists and principally trades its shares on The Nasdaq Stock Market LLC (“Nasdaq” or an “Exchange”). Market prices may differ to some degree from the net asset value of the shares. Unlike mutual funds, each Fund issues and redeems shares at net asset value, only in large specified blocks each consisting of 50,000 shares (each such block of shares called a “Creation Unit,” and collectively, the “Creation Units”). Each Fund’s Creation Units are issued and redeemed in-kind for securities in which the Fund invests, and in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements.

Each Fund is a series of First Trust Exchange-Traded AlphaDEX^® Fund (the “Trust”) and an exchange-traded index fund organized as a separate series of a registered management investment company.

Except when aggregated in Creation Units, the shares are not redeemable securities of the Funds.

The Securities and Exchange Commission has not approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

NOT FDIC INSURED MAY LOSE VALUE NO BANK GUARANTEE

December 1, 2017

Table of Contents

Summary Information
AlphaDEX^® Sector Funds
First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)	3
First Trust Consumer Staples AlphaDEX^® Fund (FXG)	9
First Trust Energy AlphaDEX^® Fund (FXN)	15
First Trust Financials AlphaDEX^® Fund (FXO)	21
First Trust Health Care AlphaDEX^® Fund (FXH)	27
First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)	33
First Trust Materials AlphaDEX^® Fund (FXZ)	39
First Trust Technology AlphaDEX^® Fund (FXL)	45
First Trust Utilities AlphaDEX^® Fund (FXU)	51
AlphaDEX^® Style Funds
First Trust Large Cap Core AlphaDEX^® Fund (FEX)	57
First Trust Large Cap Growth AlphaDEX^® Fund (FTC)	63
First Trust Large Cap Value AlphaDEX^® Fund (FTA)	69
First Trust Mega Cap AlphaDEX^® Fund (FMK)	75
First Trust Mid Cap Core AlphaDEX^® Fund (FNX)	81
First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)	87
First Trust Mid Cap Value AlphaDEX^® Fund (FNK)	94
First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)	100
First Trust Multi Cap Value AlphaDEX^® Fund (FAB)	107
First Trust Small Cap Core AlphaDEX^® Fund (FYX)	113
First Trust Small Cap Growth AlphaDEX^® Fund (FYC)	120
First Trust Small Cap Value AlphaDEX^® Fund (FYT)	126
Additional Information on the Funds' Investment Objectives and Strategies	132
Fund Investments	132
Additional Risks of Investing in the Funds	132
Fund Organization	134
Management of the Funds	134
How to Buy and Sell Shares	136
Dividends, Distributions and Taxes	137
Federal Tax Matters	137
Distribution Plan	140
Net Asset Value	140
Fund Service Providers	141
Index Providers	141
Disclaimers	141
Index Information	142
Premium/Discount Information	157
Total Return Information	164
Financial Highlights	175
Other Information	195

Table of Contents

Summary Information

First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

Investment Objective

The First Trust Consumer Discretionary AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Consumer Discretionary Index (the “Index”).

Fees and Expenses of the Fund

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund. Investors purchasing and selling shares may be subject to costs (including customary brokerage commissions) charged by their broker, which are not reflected in the table below.

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.63%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

First Trust Advisors L.P., the Fund’s investment advisor, has agreed to waive fees and/or reimburse Fund expenses to the extent that the operating expenses of the Fund (excluding interest expense, brokerage commissions and other trading expenses, taxes and extraordinary expenses) exceed 0.70% of its average daily net assets per year (the “Expense Cap”) at least through November 30, 2018. Expenses reimbursed and fees waived under such agreement are subject to recovery by the Fund’s investment advisor for up to three years from the date the fee was waived or expense was incurred, but no reimbursement payment will be made by the Fund if it results in the Fund exceeding an expense ratio equal to the Expense Cap in place at the time the expenses were reimbursed or fees waived by the Fund’s investment advisor. The agreement may be terminated by the Trust on behalf of the Fund at any time and by the Fund’s investment advisor only after November 30, 2018 upon 60 days’ written notice.

Example

The example below is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. This example does not take into account customary brokerage commissions that you pay when purchasing or selling shares of the Fund in the secondary market.

The example assumes that you invest $10,000 in the Fund for the time periods indicated. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain at current levels. Additionally, the example assumes that the Fund imposes a 12b-1 fee of 0.25% per annum of the Fund’s average daily net assets following December 31, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

1 Year	3 Years	5 Years	10 Years
$64	$256	$463	$1,061

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 93% of the average value of its portfolio.

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First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

Principal Investment Strategies

The Fund will normally invest at least 90% of its net assets (including investment borrowings) in common stocks that comprise the Index. The Fund, using an “indexing” investment approach, attempts to replicate, before fees and expenses, the performance of the Index. The Fund’s investment advisor seeks a correlation of 0.95 or better (before fees and expenses) between the Fund’s performance and the performance of the Index; a figure of 1.00 would represent perfect correlation.

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the consumer discretionary sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the consumer discretionary sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the consumer discretionary sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 112 securities. See “Index Information” for additional information.

The Fund’s strategy includes a quarterly portfolio rebalance and reconstitution which may result in a high rate of turnover. As of October 31, 2017, the market capitalization range of securities in the Index was $1.9 billion to $532.6 billion.

Principal Risks

You could lose money by investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. There can be no assurance that the Fund’s investment objective will be achieved.

AUTHORIZED PARTICIPANT CONCENTRATION RISK. Only an authorized participant (as defined in the “Frequent Purchases and Redemptions” Section) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that act as authorized participants. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the Fund and no other authorized participant is able to step forward to create or redeem, in either of these cases, Fund shares may trade at a discount to the Fund’s net asset value and possibly face delisting.

CONSUMER DISCRETIONARY COMPANIES RISK. Consumer discretionary companies provide non-essential goods and services, such as retailers, media companies and consumer services. These companies manufacture products and provide discretionary services directly to the consumer, and the success of these companies is tied closely to the performance of the overall domestic and international economy, interest rates, competition and consumer confidence. Success depends heavily on disposable household income and consumer spending. Changes in demographics and consumer tastes can also affect the demand for, and success of, consumer discretionary products in the marketplace.

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First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

CYBER SECURITY RISK. As the use of Internet technology has become more prevalent in the course of business, the Fund has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third party service providers, such as its administrator, transfer agent, custodian, or sub-advisor, as applicable, or issuers in which the Fund invests, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third party service providers.

EQUITY SECURITIES RISK. Because the Fund invests in equity securities, the value of the Fund’s shares will fluctuate with changes in the value of these equity securities. Equity securities prices fluctuate for several reasons, including changes in investors’ perceptions of the financial condition of an issuer or the general condition of the relevant stock market, such as market volatility, or when political or economic events affecting the issuers occur. In addition, common stock prices may be particularly sensitive to rising interest rates, as the cost of capital rises and borrowing costs increase.

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on NYSE Arca. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

GROWTH STOCKS INVESTMENT RISK. Growth stocks tend to be more volatile than certain other types of stocks and their prices usually fluctuate more dramatically than the overall stock market. A stock with growth characteristics can have sharp price declines due to decreases in current or expected earnings.

INDEX CONSTITUENT RISK. The Fund may be a constituent of one or more indices. As a result, the Fund may be included in one or more index-tracking exchange-traded funds or mutual funds. Being a component security of such a vehicle could greatly affect the trading activity involving the Fund, the size of the Fund and the market volatility of the Fund. Inclusion in an index could significantly increase demand for the Fund and removal from an index could result in outsized selling activity in a relatively short period of time. As a result, the Fund’s net asset value could be negatively impacted and the Fund’s market price may be significantly below the Fund’s net asset value during certain periods. In addition, index rebalances may potentially result in increased trading activity. To the extent buying or selling activity increases, the Fund can be exposed to increased brokerage costs and adverse tax consequences and the market price of the Fund can be negatively affected.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on NYSE Arca which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

MARKET RISK. Market risk is the risk that a particular security or shares of the Fund in general may fall in value. Securities are subject to market fluctuations caused by such factors as economic, political, regulatory or market developments, changes in interest rates and perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments.

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First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

NON-CORRELATION RISK. The Fund’s return may not match the return of the Index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the Index, and may incur costs in buying and selling securities, especially when rebalancing the Fund’s portfolio holdings to reflect changes in the composition of the Index. In addition, the Fund’s portfolio holdings may not exactly replicate the securities included in the Index or the ratios between the securities included in the Index.

REPLICATION MANAGEMENT RISK. The Fund is exposed to additional market risk due to its policy of investing principally in the securities included in the Index. As a result of this policy, securities held by the Fund will generally not be bought or sold in response to market fluctuations.

SMALLER COMPANIES RISK. Small and/or mid capitalization companies may be more vulnerable to adverse general market or economic developments, and their securities may be less liquid and may experience greater price volatility than larger, more established companies as a result of several factors, including limited trading volumes, products or financial resources, management inexperience and less publicly available information. Accordingly, such companies are generally subject to greater market risk than larger, more established companies.

TRADING ISSUES RISK. Although the shares of the Fund are listed for trading on NYSE Arca, there can be no assurance that an active trading market for such shares will develop or be maintained. Trading in shares on NYSE Arca may be halted due to market conditions or for reasons that, in the view of NYSE Arca, make trading in shares inadvisable. In addition, trading in shares on NYSE Arca is subject to trading halts caused by extraordinary market volatility pursuant to NYSE Arca “circuit breaker” rules. Market makers are under no obligation to make a market in the Fund’s shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of NYSE Arca necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. The Fund may have difficulty maintaining its listing on NYSE Arca in the event the Fund’s assets are small or the Fund does not have enough shareholders.

VALUE STOCKS INVESTMENT RISK. The intrinsic value of a stock with value characteristics may not be fully recognized by the market for a long time or a stock judged to be undervalued may actually be appropriately priced at a low level.

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad-based market index and two specialized securities market indices. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

With respect to the Russell 1000^® Consumer Discretionary Index (formerly the Russell 1000^® Consumer Discretionary and Services Index), on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Consumer Discretionary Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

Returns before taxes do not reflect the effects of any income or capital gains taxes. All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of any state or local tax. Returns after taxes on distributions reflect the taxed return on the payment of dividends and capital gains. Returns after taxes on distributions and sale of shares assume you sold your shares at period end, and, therefore, are also adjusted for any capital gains or losses incurred. Returns for the market indices do not include expenses, which are deducted from Fund returns, or taxes.

Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. After-tax returns are not relevant to investors who hold Fund shares in tax-deferred accounts such as individual retirement accounts (IRAs) or employee-sponsored retirement plans.

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First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

First Trust Consumer Discretionary AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 9.11%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
27.90%	September 30, 2009	-28.37%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	5.13%	13.33%	6.91%	5/8/2007
Return After Taxes on Distributions	4.64%	12.93%	6.61%
Return After Taxes on Distributions and Sale of Fund Shares	2.90%	10.49%	5.41%
StrataQuant^® Consumer Discrectionary Index (reflects no deduction for fees, expenses or taxes)	5.84%	14.06%	7.69%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Consumer Discretionary Index (reflects no deduction for fees, expenses or taxes)	6.03%	17.82%	9.67%
Russell 1000^® Consumer Discretionary Index (reflects no deduction for fees, expenses or taxes)	6.30%	17.07%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust

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First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

The Investment Committee members are primarily and jointly responsible for the day-to-day management of the Fund. Each Investment Committee member has served as a part of the portfolio management team of the Fund since 2007, except for Chris A. Peterson, who has served as a member of the portfolio management team since 2016.

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on NYSE Arca and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on NYSE Arca at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

The Fund’s distributions are taxable and will generally be taxed as ordinary income or capital gains. Distributions on shares held in a tax-deferred account, while not immediately taxable, will be subject to tax when the shares are no longer held in a tax-deferred account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), First Trust and First Trust Portfolios L.P., the Fund’s distributor, may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

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Summary Information

First Trust Consumer Staples AlphaDEX^® Fund (FXG)

Investment Objective

The First Trust Consumer Staples AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Consumer Staples Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.12%
Total Annual Fund Operating Expenses	0.62%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.62%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$63	$253	$458	$1,049

Portfolio Turnover

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First Trust Consumer Staples AlphaDEX^® Fund (FXG)

taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 100% of the average value of its portfolio.

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the consumer staples sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the consumer staples sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the consumer staples sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 36 securities. See “Index Information” for additional information.

Principal Risks

CONSUMER STAPLES COMPANIES RISK. Consumer staples companies provide products directly to the consumer that are typically considered non-discretionary items based on consumer purchasing habits. The success of these companies is affected

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First Trust Consumer Staples AlphaDEX^® Fund (FXG)

by a variety of factors, such as government regulations, which may affect the permissibility of using various food additives and the production methods of companies that manufacture food products.

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First Trust Consumer Staples AlphaDEX^® Fund (FXG)

PORTFOLIO TURNOVER RISK. High portfolio turnover may result in the Fund paying higher levels of transaction costs and generating greater tax liabilities for shareholders. Portfolio turnover risk may cause the Fund’s performance to be less than you expect.

Annual Total Return

With respect to the Russell 1000^® Consumer Staples Index, on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Consumer Staples Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

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First Trust Consumer Staples AlphaDEX^® Fund (FXG)

First Trust Consumer Staples AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 0.81%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
20.65%	March 31, 2013	-17.59%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	4.70%	15.87%	10.42%	5/8/2007
Return After Taxes on Distributions	3.95%	15.15%	9.85%
Return After Taxes on Distributions and Sale of Fund Shares	2.67%	12.44%	8.27%
StrataQuant^® Consumer Staples Index (reflects no deduction for fees, expenses or taxes)	5.36%	16.74%	11.24%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Consumer Staples Index (reflects no deduction for fees, expenses or taxes)	5.38%	12.73%	9.94%
Russell 1000^® Consumer Staples Index (reflects no deduction for fees, expenses or taxes)	5.54%	13.42%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust

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First Trust Consumer Staples AlphaDEX^® Fund (FXG)

•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Energy AlphaDEX^® Fund (FXN)

Investment Objective

The First Trust Energy AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Energy Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.63%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$64	$256	$463	$1,061

Portfolio Turnover

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First Trust Energy AlphaDEX^® Fund (FXN)

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the energy sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the energy sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the energy sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 47 securities. See “Index Information” for additional information.

Principal Risks

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First Trust Energy AlphaDEX^® Fund (FXN)

users. In addition, cyber security breaches of the Fund’s third party service providers, such as its administrator, transfer agent, custodian, or sub-advisor, as applicable, or issuers in which the Fund invests, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third party service providers.

ENERGY COMPANIES RISK. Energy companies include integrated oil companies that are involved in the exploration, production and refining process, gas distributors and pipeline-related companies and other energy companies involved with mining, producing and delivering energy-related services and drilling. General problems of energy companies include volatile fluctuations in price and supply of energy fuels, international politics, terrorist attacks, reduced demand, the success of exploration projects, clean-up and litigation costs relating to oil spills and environmental damage, and tax and other regulatory policies of various governments. Natural disasters such as hurricanes in the Gulf of Mexico also impact the petroleum industry. Oil production and refining companies are subject to extensive federal, state and local environmental laws and regulations regarding air emissions and the disposal of hazardous materials. In addition, oil prices are generally subject to extreme volatility.

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First Trust Energy AlphaDEX^® Fund (FXN)

Annual Total Return

With respect to the Russell 1000^® Energy Index, on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. In addition to the implementation of the RGS, Russell combined the Russell 1000^® Integrated Oils Index and the Russell 1000^® Other Energy Index into one index, the Russell 1000^® Energy Index. Consequently, performance data is not available for the Russell 1000^® Energy Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector schedule or alternatively, using solely RGS.

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First Trust Energy AlphaDEX^® Fund (FXN)

First Trust Energy AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was -12.33%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
29.92%	June 30, 2008	-38.75%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	20.46%	-1.81%	-1.09%	5/8/2007
Return After Taxes on Distributions	19.87%	-2.35%	-1.44%
Return After Taxes on Distributions and Sale of Fund Shares	11.55%	-1.57%	-0.95%
StrataQuant^® Energy Index (reflects no deduction for fees, expenses or taxes)	21.16%	-1.30%	-0.49%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Energy Index (reflects no deduction for fees, expenses or taxes)	27.36%	3.92%	3.44%
Russell 1000^® Energy Index (reflects no deduction for fees, expenses or taxes)	25.91%	3.15%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust

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First Trust Energy AlphaDEX^® Fund (FXN)

•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on NYSE Arca and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on NYSE Arca at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

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Summary Information

First Trust Financials AlphaDEX^® Fund (FXO)

Investment Objective

The First Trust Financials AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Financials Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.63%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$64	$256	$463	$1,061

Portfolio Turnover

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First Trust Financials AlphaDEX^® Fund (FXO)

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the financial services sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the financial services sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the financial services sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 181 securities. See “Index Information” for additional information.

Principal Risks

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First Trust Financials AlphaDEX^® Fund (FXO)

FINANCIAL COMPANIES RISK. Financial companies are especially subject to the adverse effects of economic recession, currency exchange rates, government regulation, decreases in the availability of capital, volatile interest rates, portfolio concentrations in geographic markets and in commercial and residential real estate loans, and competition from new entrants in their fields of business.

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First Trust Financials AlphaDEX^® Fund (FXO)

when rebalancing the Fund’s portfolio holdings to reflect changes in the composition of the Index. In addition, the Fund’s portfolio holdings may not exactly replicate the securities included in the Index or the ratios between the securities included in the Index.

REIT INVESTMENT RISK. The Fund is subject to the risks associated with investing in real estate, which may include, but are not limited to, fluctuations in the value of underlying properties; defaults by borrowers or tenants; market saturation; changes in general and local operating expenses; and other economic, political or regulatory occurrences affecting companies in the real estate industry. In addition to risks related to investments in real estate generally, investing in real estate investment trusts ("REITs") involves certain other risks related to their structure and focus, which include, but are not limited to, dependency upon management skills, limited diversification, the risks of locating and managing financing for projects, heavy cash flow dependency, possible default by borrowers, the costs and potential losses of self-liquidation of one or more holdings, the risk of a possible lack of mortgage funds and associated interest rate risks, overbuilding, property vacancies, increases in property taxes and operating expenses, changes in zoning laws, losses due to environmental damages, changes in neighborhood values and appeal to purchases, the possibility of failing to maintain exemptions from registration under the 1940 Act and, in many cases, relatively small market capitalization, which may result in less market liquidity and greater price volatility. REITs are also subject to the risk that the real estate market may experience an economic downturn generally, which may have a material effect on the real estate in which the REITs invest and their underlying portfolio securities.

Annual Total Return

With respect to the Russell 1000^® Financial Services Index, on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Financial Services Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

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First Trust Financials AlphaDEX^® Fund (FXO)

distributions and sale of shares assume you sold your shares at period end, and, therefore, are also adjusted for any capital gains or losses incurred. Returns for the market indices do not include expenses, which are deducted from Fund returns, or taxes.

First Trust Financials AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 11.02%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
30.65%	June 30, 2009	-22.64%	March 31, 2009

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	18.16%	17.22%	4.89%	5/8/2007
Return After Taxes on Distributions	17.41%	16.47%	4.23%
Return After Taxes on Distributions and Sale of Fund Shares	10.24%	13.55%	3.51%
StrataQuant^® Financials Index (reflects no deduction for fees, expenses or taxes)	18.99%	18.09%	5.78%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Financials Index (reflects no deduction for fees, expenses or taxes)	22.80%	19.47%	-0.67%
Russell 1000^® Financial Services Index (reflects no deduction for fees, expenses or taxes)	16.54%	18.20%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

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First Trust Financials AlphaDEX^® Fund (FXO)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Health Care AlphaDEX^® Fund (FXH)

Investment Objective

The First Trust Health Care AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Health Care Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.12%
Total Annual Fund Operating Expenses	0.62%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.62%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$63	$253	$458	$1,049

Portfolio Turnover

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First Trust Health Care AlphaDEX^® Fund (FXH)

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the health care sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the health care sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the health care sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 75 securities. See “Index Information” for additional information.

Principal Risks

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First Trust Health Care AlphaDEX^® Fund (FXH)

HEALTH CARE COMPANIES RISK. Health care companies are involved in medical services or health care, including biotechnology research and production, drugs and pharmaceuticals and health care facilities and services. These companies are subject to extensive competition, generic drug sales or the loss of patent protection, product liability litigation and increased government regulation. Research and development costs of bringing new drugs to market are substantial, and there is no guarantee that the product will ever come to market. Health care facility operators may be affected by the demand for services, efforts by government or insurers to limit rates, restriction of government financial assistance and competition from other providers.

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First Trust Health Care AlphaDEX^® Fund (FXH)

Annual Total Return

With respect to the Russell 1000^® Health Care Index, on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Health Care Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

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First Trust Health Care AlphaDEX^® Fund (FXH)

First Trust Health Care AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 17.73%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
19.11%	September 30, 2009	-19.65%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	-5.20%	16.25%	11.60%	5/8/2007
Return After Taxes on Distributions	-5.20%	16.21%	11.57%
Return After Taxes on Distributions and Sale of Fund Shares	-2.94%	13.14%	9.65%
StrataQuant^® Health Care Index (reflects no deduction for fees, expenses or taxes)	-4.64%	17.01%	12.42%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Health Care Index (reflects no deduction for fees, expenses or taxes)	-2.69%	16.80%	8.86%
Russell 1000^® Health Care Index (reflects no deduction for fees, expenses or taxes)	-2.92%	17.35%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust

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First Trust Health Care AlphaDEX^® Fund (FXH)

•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

Investment Objective

The First Trust Industrials/Producer Durables AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Industrials Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.63%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$64	$256	$463	$1,061

Portfolio Turnover

Table of Contents

First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the industrials and producer durables sectors that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the industrials and producer durables sectors are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the industrials and producer durables sectors comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 92 securities. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third party service providers, such as its administrator, transfer agent, custodian, or sub-advisor, as applicable, or issuers in which the Fund invests, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third party service providers.

INDUSTRIALS COMPANIES RISK. Industrials companies convert unfinished goods into finished durables used to manufacture other goods or provide services. Some industrials companies are involved in electrical equipment and components, industrial products, manufactured housing and telecommunications equipment. General risks of industrials companies include the general state of the economy, intense competition, consolidation, domestic and international politics, excess capacity and consumer demand and spending trends. In addition, they may also be significantly affected by overall capital spending levels, economic cycles, technical obsolescence, delays in modernization, labor relations, government regulations and e-commerce initiatives.

Table of Contents

First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

Annual Total Return

With respect to the Russell 1000^® Producer Durables Index, on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Producer Durables Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

Table of Contents

First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

First Trust Industrials/Producer Durables AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 13.41%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
24.70%	September 30, 2009	-28.74%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	26.76%	14.94%	6.12%	5/8/2007
Return After Taxes on Distributions	26.44%	14.49%	5.80%
Return After Taxes on Distributions and Sale of Fund Shares	15.13%	11.80%	4.73%
StrataQuant^® Industrials Index (reflects no deduction for fees, expenses or taxes)	27.78%	15.76%	6.90%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Industrials Index (reflects no deduction for fees, expenses or taxes)	18.86%	15.60%	7.25%
Russell 1000^® Producer Durables Index (reflects no deduction for fees, expenses or taxes)	19.41%	16.12%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust

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First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Materials AlphaDEX^® Fund (FXZ)

Investment Objective

The First Trust Materials AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Materials Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.15%
Total Annual Fund Operating Expenses	0.65%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.65%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$66	$262	$474	$1,085

Portfolio Turnover

Table of Contents

First Trust Materials AlphaDEX^® Fund (FXZ)

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the materials and processing sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the materials and processing sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the materials and processing sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 51 securities. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Materials AlphaDEX^® Fund (FXZ)

Table of Contents

First Trust Materials AlphaDEX^® Fund (FXZ)

MATERIALS AND PROCESSING COMPANIES RISK. Materials and processing companies are involved in the extracting or processing of raw materials. General risks of these companies include the general state of the economy, consolidation, domestic and international politics and excess capacity. In addition, materials companies may also be significantly affected by volatility of commodity prices, import controls, worldwide competition, liability for environmental damage, depletion of resources and mandated expenditures for safety and pollution control devices.

Annual Total Return

With respect to the Russell 1000^® Materials and Processing Index, on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Materials and Processing Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

Table of Contents

First Trust Materials AlphaDEX^® Fund (FXZ)

First Trust Materials AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 13.51%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
32.74%	June 30, 2009	-28.66%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	29.17%	12.83%	7.72%	5/8/2007
Return After Taxes on Distributions	28.47%	12.09%	7.15%
Return After Taxes on Distributions and Sale of Fund Shares	16.49%	9.89%	5.95%
StrataQuant^® Materials Index (reflects no deduction for fees, expenses or taxes)	30.04%	13.64%	8.52%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Materials Index (reflects no deduction for fees, expenses or taxes)	16.69%	10.54%	4.79%
Russell 1000^® Materials and Processing Index (reflects no deduction for fees, expenses or taxes)	19.96%	11.49%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust

Table of Contents

First Trust Materials AlphaDEX^® Fund (FXZ)

•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Technology AlphaDEX^® Fund (FXL)

Investment Objective

The First Trust Technology AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Technology Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.63%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$64	$256	$463	$1,061

Portfolio Turnover

Table of Contents

First Trust Technology AlphaDEX^® Fund (FXL)

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the technology sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the technology sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the technology sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 78 securities. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Technology AlphaDEX^® Fund (FXL)

INFORMATION TECHNOLOGY COMPANIES RISK. Information technology companies are generally subject to the following risks: rapidly changing technologies; short product life cycles; fierce competition; aggressive pricing and reduced profit margins; the loss of patent, copyright and trademark protections; cyclical market patterns; evolving industry standards; and frequent new product introductions. Information technology companies may be smaller and less experienced companies, with limited product lines, markets or financial resources and fewer experienced management or marketing personnel. Information technology company stocks, particularly those involved with the Internet, have experienced extreme price and volume fluctuations that are often unrelated to their operating performance.

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First Trust Technology AlphaDEX^® Fund (FXL)

Annual Total Return

With respect to the Russell 1000^® Technology Index , on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Technology Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

Table of Contents

First Trust Technology AlphaDEX^® Fund (FXL)

First Trust Technology AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 26.90%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
22.85%	June 30, 2009	-28.69%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	15.42%	14.28%	7.18%	5/8/2007
Return After Taxes on Distributions	14.83%	14.00%	7.04%
Return After Taxes on Distributions and Sale of Fund Shares	8.71%	11.34%	5.74%
StrataQuant^® Technology Index (reflects no deduction for fees, expenses or taxes)	15.73%	15.02%	8.00%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Information Technology Index (reflects no deduction for fees, expenses or taxes)	13.85%	16.39%	9.53%
Russell 1000^® Technology Index (reflects no deduction for fees, expenses or taxes)	14.08%	15.50%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust

Table of Contents

First Trust Technology AlphaDEX^® Fund (FXL)

•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Utilities AlphaDEX^® Fund (FXU)

Investment Objective

The First Trust Utilities AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the StrataQuant^® Utilities Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.12%
Total Annual Fund Operating Expenses	0.62%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.62%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$63	$253	$458	$1,049

Portfolio Turnover

Table of Contents

First Trust Utilities AlphaDEX^® Fund (FXU)

Principal Investment Strategies

The Index is in the “StrataQuant^® Series,” a family of custom enhanced indices developed, maintained and sponsored by ICE Data Indices, LLC or its affiliates (“IDI” or an “Index Provider”), and licensed to First Trust Portfolios L.P. by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC. The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the utilities sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Russell 1000^® Index.
2.	The stocks in the selection universe are ranked on both growth and value factors. Each stock is classified as either a value stock, a growth stock or a combination of growth and value, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” A stock classified as a combination of growth and value will receive the better of the two scores.
3.	The selection universe is then divided into respective sectors as defined by the Index Provider. The component stocks contained in the utilities sector are ranked according to their selection score from step 2. The bottom 25% in such sector is eliminated.
4.	The top 75% of securities in the utilities sector comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was April 11, 2007. As of October 31, 2017, the Index was composed of 36 securities. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Utilities AlphaDEX^® Fund (FXU)

Table of Contents

First Trust Utilities AlphaDEX^® Fund (FXU)

TELECOMMUNICATIONS COMPANIES RISK. Telecommunications companies are subject to the risk of increased competition and regulation by various regulatory authorities, the need to commit substantial capital and technological obsolescence.

UTILITIES COMPANIES RISK. General problems of utilities companies include the imposition of rate caps, increased competition due to deregulation, the difficulty in obtaining an adequate return on invested capital or in financing large construction projects, the limitations on operations and increased costs and delays attributable to environmental considerations and the capital market’s ability to absorb utility debt. In addition, taxes, government regulation, international politics, price and supply fluctuations, volatile interest rates and energy conservation may cause difficulties for utilities. All of such issuers have been experiencing certain of these problems in varying degrees.

Annual Total Return

With respect to the Russell 1000^® Utilities Index, on or about September 18, 2008, Russell Investment Group (“Russell”) began calculating its Russell U.S. Indices using an enhanced Russell sector scheme, the Russell Global Sectors (the “RGS”). The RGS and the former U.S. sector scheme ran in tandem until June 30, 2009, when Russell officially transitioned to the RGS and ceased calculating its indices using the U.S. sector scheme. Consequently, performance data is not available for the Russell 1000^® Utilities Index for the “Since Inception” period set forth in the table because performance data does not exist using solely the U.S. sector scheme or alternatively, using solely the RGS.

Table of Contents

First Trust Utilities AlphaDEX^® Fund (FXU)

First Trust Utilities AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 3.14%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
16.49%	March 31, 2016	-14.04%	March 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	22.52%	11.86%	6.33%	5/8/2007
Return After Taxes on Distributions	21.13%	10.38%	5.06%
Return After Taxes on Distributions and Sale of Fund Shares	12.73%	8.66%	4.37%
StrataQuant^® Utilities Index (reflects no deduction for fees, expenses or taxes)	23.44%	12.83%	7.24%
Russell 1000^® Index (reflects no deduction for fees, expenses or taxes)	12.05%	14.69%	6.56%
S&P 500^® Utilities Index (reflects no deduction for fees, expenses or taxes)	16.28%	10.35%	5.61%
Russell 1000^® Utilities Index (reflects no deduction for fees, expenses or taxes)	20.42%	11.25%	N/A

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust

Table of Contents

First Trust Utilities AlphaDEX^® Fund (FXU)

•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Large Cap Core AlphaDEX^® Fund (FEX)

Investment Objective

The First Trust Large Cap Core AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Large Cap Core Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.11%
Total Annual Fund Operating Expenses	0.61%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.61%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$62	$249	$452	$1,038

Portfolio Turnover

Table of Contents

First Trust Large Cap Core AlphaDEX^® Fund (FEX)

Principal Investment Strategies

The Index is designed to select stocks from the NASDAQ US 500 Large Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

The Base Index is a comprehensive, rules-based index designed to measure stock market performance of large cap US companies, as determined by the Index Provider. The Fund will be concentrated in an industry or a group of industries to the extent that the Index is so concentrated.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.”
4.	The top 375 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

The Fund’s strategy includes a quarterly portfolio rebalance and reconstitution which may result in a high rate of turnover. The securities of companies represented in the Index generally have market capitalizations that are consistent with the name of the Index. To determine the market capitalization range of such securities, the Fund uses the current range of the Index. However, the Fund will not sell a security because the security has exceeded or fallen below the current market capitalization range of the Index. As of October 31, 2017, the market capitalization range of securities in the Index was $6.2 billion to $873.1 billion.

Principal Risks

Table of Contents

First Trust Large Cap Core AlphaDEX^® Fund (FEX)

result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third party service providers, such as its administrator, transfer agent, custodian, or sub-advisor, as applicable, or issuers in which the Fund invests, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third party service providers.

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

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First Trust Large Cap Core AlphaDEX^® Fund (FEX)

TRADING ISSUES RISK. Although the shares of the Fund are listed for trading on Nasdaq, there can be no assurance that an active trading market for such shares will develop or be maintained. Trading in shares on Nasdaq may be halted due to market conditions or for reasons that, in the view of Nasdaq, make trading in shares inadvisable. In addition, trading in shares on Nasdaq is subject to trading halts caused by extraordinary market volatility pursuant to Nasdaq “circuit breaker” rules. Market makers are under no obligation to make a market in the Fund’s shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of Nasdaq necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. The Fund may have difficulty maintaining its listing on Nasdaq in the event the Fund’s assets are small or the Fund does not have enough shareholders.

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad-based market index and a specialized securities market index. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Large Cap Core Index to the Nasdaq AlphaDEX^® Large Cap Core Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Large Cap Core Index.

Table of Contents

First Trust Large Cap Core AlphaDEX^® Fund (FEX)

First Trust Large Cap Core AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 13.64%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
21.20%	June 30, 2009	-23.68%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	14.11%	13.86%	6.43%	5/8/2007
Return After Taxes on Distributions	13.44%	13.24%	5.94%
Return After Taxes on Distributions and Sale of Fund Shares	7.97%	10.81%	4.90%
Defined Large Cap Core Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	13.66%	13.87%	6.53%
Nasdaq AlphaDEX^® Large Cap Core Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 500 Large Cap Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P 500^® Index (reflects no deduction for fees, expenses or taxes)	11.96%	14.66%	6.46%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Large Cap Core Index to the Nasdaq AlphaDEX^® Large Cap Core Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Large Cap Core Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust

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First Trust Large Cap Core AlphaDEX^® Fund (FEX)

•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

Investment Objective

The First Trust Large Cap Growth AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Large Cap Growth Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.12%
Total Annual Fund Operating Expenses	0.62%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.62%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$63	$253	$458	$1,049

Portfolio Turnover

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First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

Principal Investment Strategies

The Index is designed to select growth stocks from the NASDAQ US 500 Large Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” Only those stocks designated as growth stocks are eligible for the portfolio.
4.	The top 187 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

The Fund’s strategy includes a quarterly portfolio rebalance and reconstitution which may result in a high rate of turnover. As of July 31, 2017, the Fund had significant investments in the information technology sector. The securities of companies represented in the Index generally have market capitalizations that are consistent with the name of the Index. To determine the market capitalization range of such securities, the Fund uses the current range of the Index. However, the Fund will not sell a security because the security has exceeded or fallen below the current market capitalization range of the Index. As of October 31, 2017, the market capitalization range of securities in the Index was $8.0 billion to $873.1 billion.

Principal Risks

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First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

Table of Contents

First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

Annual Total Return

On April 8, 2016, the Fund’s underlying index changed from the Defined Large Cap Growth Index to the Nasdaq AlphaDEX^® Large Cap Growth Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Large Cap Growth Index.

Table of Contents

First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

First Trust Large Cap Growth AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 17.74%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
18.05%	September 30, 2009	-22.58%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	2.55%	13.13%	5.92%	5/8/2007
Return After Taxes on Distributions	2.17%	12.77%	5.65%
Return After Taxes on Distributions and Sale of Fund Shares	1.44%	10.35%	4.61%
Defined Large Cap Growth Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	4.41%	14.17%	6.81%
Nasdaq AlphaDEX^® Large Cap Growth Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 500 Large Cap Growth Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P 500^® Index (reflects no deduction for fees, expenses or taxes)	11.96%	14.66%	6.46%
S&P 500^® Growth Index (reflects no deduction for fees, expenses or taxes)	6.89%	14.54%	7.93%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Large Cap Growth Index to the Nasdaq AlphaDEX^® Large Cap Growth Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Large Cap Growth Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Table of Contents

First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

Investment Objective

The First Trust Large Cap Value AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Large Cap Value Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.12%
Total Annual Fund Operating Expenses	0.62%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.62%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$63	$253	$458	$1,049

Portfolio Turnover

Table of Contents

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

Principal Investment Strategies

The Index is designed to select value stocks from the NASDAQ US 500 Large Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” Only those stocks designated as value stocks are eligible for the portfolio.
4.	The top 187 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third party service providers, such as its administrator, transfer agent, custodian, or sub-advisor, as applicable, or issuers in which the Fund invests, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third party service providers.

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

Table of Contents

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

Annual Total Return

On April 8, 2016, the Fund’s underlying index changed from the Defined Large Cap Value Index to the Nasdaq AlphaDEX^® Large Cap Value Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Large Cap Value Index.

Table of Contents

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

First Trust Large Cap Value AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 10.43%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
31.01%	June 30, 2009	-24.78%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	23.92%	14.12%	6.56%	5/8/2007
Return After Taxes on Distributions	23.01%	13.29%	5.85%
Return After Taxes on Distributions and Sale of Fund Shares	13.49%	10.90%	4.87%
Defined Large Cap Value Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	22.98%	14.59%	7.20%
Nasdaq AlphaDEX^® Large Cap Value Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 500 Large Cap Value Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P 500^® Index (reflects no deduction for fees, expenses or taxes)	11.96%	14.66%	6.46%
S&P 500^® Value Index (reflects no deduction for fees, expenses or taxes)	17.40%	14.69%	4.90%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Large Cap Value Index to the Nasdaq AlphaDEX^® Large Cap Value Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Large Cap Value Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Table of Contents

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Mega Cap AlphaDEX^® Fund (FMK)

Investment Objective

The First Trust Mega Cap AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Mega Cap Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.70%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.00%
Total Annual Fund Operating Expenses	0.70%

(1)	Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

Example

1 Year	3 Years	5 Years	10 Years
$72	$278	$501	$1,144

Portfolio Turnover

Principal Investment Strategies

The Index is designed to select mega cap stocks from the NASDAQ US 500 Large Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology.

Table of Contents

First Trust Mega Cap AlphaDEX^® Fund (FMK)

Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks are then ranked by market capitalization. The top 100 largest stocks by market capitalization, which the Index Provider defines as “mega cap,” are eligible for the portfolio.
4.	The remaining stocks in the universe are then ranked on both growth and value factors. A stock’s selection score is the better of the growth or value rank.
5.	The top 50 stocks based on the selection score determined in step 4 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index, subject to sector constraints.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

The Fund’s strategy includes a quarterly portfolio rebalance and reconstitution which may result in a high rate of turnover. As of July 31, 2017, the Fund had significant investments in the health care sector and the information technology sector. The securities of companies represented in the Index generally have market capitalizations that are consistent with the name of the Index. To determine the market capitalization range of such securities, the Fund uses the current range of the Index. However, the Fund will not sell a security because the security has exceeded or fallen below the current market capitalization range of the Index. As of October 31, 2017, the market capitalization range of securities in the Index was $52.1 billion to $873.1 billion.

Principal Risks

Table of Contents

First Trust Mega Cap AlphaDEX^® Fund (FMK)

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values

Table of Contents

First Trust Mega Cap AlphaDEX^® Fund (FMK)

of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

SMALL FUND RISK. The Fund currently has fewer assets than larger funds, and like other smaller funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the period affected.

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad-based market index and a specialized securities market index. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Mega Cap Index to the Nasdaq AlphaDEX^® Mega Cap Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Mega Cap Index.

Table of Contents

First Trust Mega Cap AlphaDEX^® Fund (FMK)

First Trust Mega Cap AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 14.43%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
10.74%	March 31, 2012	-8.54%	June 30, 2012

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	8.21%	10.94%	7.91%	5/11/2011
Return After Taxes on Distributions	7.47%	10.30%	7.32%
Return After Taxes on Distributions and Sale of Fund Shares	4.63%	8.38%	5.95%
Defined Mega Cap Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	9.77%	11.98%	8.91%
Nasdaq AlphaDEX^® Mega Cap Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 500 Large Cap Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P 100^® Index (reflects no deduction for fees, expenses or taxes)	11.37%	14.29%	11.99%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Mega Cap Index to the Nasdaq AlphaDEX^® Mega Cap Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Mega Cap Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Table of Contents

First Trust Mega Cap AlphaDEX^® Fund (FMK)

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

The Investment Committee members are primarily and jointly responsible for the day-to-day management of the Fund. Each Investment Committee member has served as a part of the portfolio management team of the Fund since 2011, except for Chris A. Peterson, who has served as a member of the portfolio management team since 2016.

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

Investment Objective

The First Trust Mid Cap Core AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Mid Cap Core Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.63%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$64	$256	$463	$1,061

Portfolio Turnover

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First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

Principal Investment Strategies

The Index is designed to select stocks from the NASDAQ US 600 Mid Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

The Base Index is a comprehensive, rules-based index designed to measure stock market performance of mid cap US companies, as determined by the Index Provider. The Fund will be concentrated in an industry or a group of industries to the extent that the Index is so concentrated.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.”
4.	The top 450 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third party service providers, such as its administrator, transfer agent, custodian, or sub-advisor, as applicable, or issuers in which the Fund invests, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third party service providers.

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

Table of Contents

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

SMALLER COMPANIES RISK. Mid-capitalization companies may be more vulnerable to adverse general market or economic developments, and their securities may be less liquid and may experience greater price volatility than larger, more established companies as a result of several factors, including limited trading volumes, products or financial resources, management inexperience and less publicly available information. Accordingly, such companies are generally subject to greater market risk than larger, more established companies.

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad based market index and a specialized securities market index. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Mid Cap Core Index to the Nasdaq AlphaDEX^® Mid Cap Core Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Mid Cap Core Index.

Table of Contents

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

First Trust Mid Cap Core AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 10.46%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
24.50%	June 30, 2009	-26.89%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	18.67%	12.57%	7.59%	5/8/2007
Return After Taxes on Distributions	18.09%	12.14%	7.26%
Return After Taxes on Distributions and Sale of Fund Shares	10.55%	9.84%	5.97%
Defined Mid Cap Core Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	22.11%	13.83%	8.60%
Nasdaq AlphaDEX^® Mid Cap Core Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 600 Mid Cap Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P MidCap 400^® Index (reflects no deduction for fees, expenses or taxes)	20.74%	15.33%	8.28%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Mid Cap Core Index to the Nasdaq AlphaDEX^® Mid Cap Core Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Mid Cap Core Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Table of Contents

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

Investment Objective

The First Trust Mid Cap Growth AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Mid Cap Growth Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.70%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.00%
Total Annual Fund Operating Expenses	0.70%

(1)	Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

Example

1 Year	3 Years	5 Years	10 Years
$72	$278	$501	$1,144

Portfolio Turnover

Principal Investment Strategies

Table of Contents

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

The Index is designed to select growth stocks from the NASDAQ US 600 Mid Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” Only those stocks designated as growth stocks are eligible for the portfolio.
4.	The top 225 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

Table of Contents

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad-based market index and a specialized securities market index. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Mid Cap Growth Index to the Nasdaq AlphaDEX^® Mid Cap Growth Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Mid Cap Growth Index.

Table of Contents

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

First Trust Mid Cap Growth AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 16.62%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
13.55%	March 31, 2013	-8.68%	September 30, 2015

Table of Contents

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	9.42%	11.25%	8.49%	4/19/2011
Return After Taxes on Distributions	9.14%	11.05%	8.32%
Return After Taxes on Distributions and Sale of Fund Shares	5.33%	8.87%	6.65%
Defined Mid Cap Growth Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	11.96%	12.45%	9.77%
Nasdaq AlphaDEX^® Mid Cap Growth Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 600 Mid Cap Growth Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P MidCap 400^® Growth Index (reflects no deduction for fees, expenses or taxes)	14.77%	14.42%	10.80%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Mid Cap Growth Index to the Nasdaq AlphaDEX^® Mid Cap Growth Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Mid Cap Growth Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

The Investment Committee members are primarily and jointly responsible for the day-to-day management of the Fund. Each Investment Committee member has served as a part of the portfolio management team of the Fund since 2011, except for Chris A. Peterson, who has served as a member of the portfolio management team since 2016.

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Table of Contents

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

Payments to Broker-Dealers and Other Financial Intermediaries

Table of Contents

Summary Information

First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

Investment Objective

The First Trust Mid Cap Value AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Mid Cap Value Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.70%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.00%
Total Annual Fund Operating Expenses	0.70%

(1)	Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

Example

1 Year	3 Years	5 Years	10 Years
$72	$278	$501	$1,144

Portfolio Turnover

Principal Investment Strategies

The Index is designed to select value stocks from the NASDAQ US 600 Mid Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology.

Table of Contents

First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” Only those stocks designated as value stocks are eligible for the portfolio.
4.	The top 225 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

Principal Risks

Table of Contents

First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

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First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

inexperience and less publicly available information. Accordingly, such companies are generally subject to greater market risk than larger, more established companies.

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad-based market index and a specialized securities market index. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Mid Cap Value Index to the Nasdaq AlphaDEX^® Mid Cap Value Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Mid Cap Value Index.

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First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

First Trust Mid Cap Value AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 5.51%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
14.59%	March 31, 2013	-11.78%	September 30, 2015

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	26.29%	13.39%	10.33%	4/19/2011
Return After Taxes on Distributions	25.46%	12.84%	9.82%
Return After Taxes on Distributions and Sale of Fund Shares	14.83%	10.45%	7.99%
Defined Mid Cap Value Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	29.74%	14.66%	11.56%
Nasdaq AlphaDEX^® Mid Cap Value Index(reflects no deduction for fees, expenses or taxes)^(1),(2)	N/A	N/A	N/A
Nasdaq US 600 Mid Cap Value Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P MidCap 400^® Value Index (reflects no deduction for fees, expenses or taxes)	26.53%	16.07%	12.18%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Mid Cap Value Index to the Nasdaq AlphaDEX^® Mid Cap Value Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Mid Cap Value Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust

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First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

The Investment Committee members are primarily and jointly responsible for the day-to-day management of the Fund. Each Investment Committee member has served as a part of the portfolio management team of the Fund since 2011, except for Chris A. Peterson, who has served as a member of the portfolio management team since 2016.

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

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Summary Information

First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)

Investment Objective

The First Trust Multi Cap Growth AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Multi Cap Growth Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.20%
Total Annual Fund Operating Expenses	0.70%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.70%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$72	$278	$501	$1,144

Portfolio Turnover

100

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First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)

Principal Investment Strategies

The Index is designed to select growth stocks from the NASDAQ US 500 Large Cap Index, NASDAQ US 600 Mid Cap Index and NASDAQ US 700 Small Cap Index (the "Base Indices") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

The Base Indices are comprehensive, rules-based indices designed to measure stock market performance of US companies of all market capitalizations, as determined by the Index Provider. The Fund will be concentrated in an industry or a group of industries to the extent that the Index is so concentrated.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Indices.

2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.

Stocks from the NASDAQ US 500 Large Cap Index will comprise 50% of the Index; stocks from the NASDAQ US 600 Mid Cap Index will comprise 30% of the Index; and stocks from the NASDAQ US 700 Small Cap Index will comprise 20% of the Index at each rebalance. The following steps are performed for each size class independently:

The remaining stocks in each base Index are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” Only those stocks designated as growth stocks are eligible for the portfolio.

The top 187 stocks from the NASDAQ US 500 Large Cap Index, top 225 stocks from the NASDAQ US 600 Mid Cap Index and top 262 stocks from the NASDAQ US 700 Small Cap Index based on the selection score determined in step 3 comprise the “selected stocks.” Within each size class, the selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

Principal Risks

101

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First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

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MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

SMALLER COMPANIES RISK. Small and/or mid-capitalization companies may be more vulnerable to adverse general market or economic developments, and their securities may be less liquid and may experience greater price volatility than larger, more established companies as a result of several factors, including limited trading volumes, products or financial resources, management inexperience and less publicly available information. Accordingly, such companies are generally subject to greater market risk than larger, more established companies.

Annual Total Return

On April 8, 2016, the Fund’s underlying index changed from the Defined Multi Cap Growth Index to the Nasdaq AlphaDEX^® Multi Cap Growth Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only

103

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disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Multi Cap Growth Index.

First Trust Multi Cap Growth AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 17.62%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
19.09%	September 30, 2009	-23.61%	December 31, 2008

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The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	6.83%	12.56%	6.39%	5/8/2007
Return After Taxes on Distributions	6.53%	12.31%	6.23%
Return After Taxes on Distributions and Sale of Fund Shares	3.86%	9.93%	5.06%
Defined Multi Cap Growth Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	8.99%	13.71%	7.35%
Nasdaq AlphaDEX^® Multi Cap Growth Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US Multi Cap Growth Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P Composite 1500^® Index (reflects no deduction for fees, expenses or taxes)	13.03%	14.78%	6.68%
S&P Composite 1500^® Growth Index (reflects no deduction for fees, expenses or taxes)	7.90%	14.60%	8.06%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Multi Cap Growth Index to the Nasdaq AlphaDEX^® Multi Cap Growth Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Multi Cap Growth Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

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Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

106

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Summary Information

First Trust Multi Cap Value AlphaDEX^® Fund (FAB)

Investment Objective

The First Trust Multi Cap Value AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Multi Cap Value Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.16%
Total Annual Fund Operating Expenses	0.66%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.66%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$67	$265	$479	$1,097

Portfolio Turnover

107

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First Trust Multi Cap Value AlphaDEX^® Fund (FAB)

Principal Investment Strategies

The Index is designed to select value stocks from the NASDAQ US 500 Large Cap Index, NASDAQ US 600 Mid Cap Index and NASDAQ US 700 Small Cap Index (the "Base Indices") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Indices.

2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

The Fund’s strategy includes a quarterly portfolio rebalance and reconstitution which may result in a high rate of turnover. As of July 31, 2017, the Fund had significant investments in the consumer discretionary sector. The securities of companies represented in the Index generally have market capitalizations that are consistent with the name of the Index. To determine the market capitalization range of such securities, the Fund uses the current range of the Index. However, the Fund will not sell a security because the security has exceeded or fallen below the current market capitalization range of the Index. As of October 31, 2017, the market capitalization range of securities in the Index was $600 million to $461.2 billion.

Principal Risks

108

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First Trust Multi Cap Value AlphaDEX^® Fund (FAB)

step forward to create or redeem, in either of these cases, Fund shares may trade at a discount to the Fund’s net asset value and possibly face delisting.

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

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decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

Annual Total Return

On April 8, 2016, the Fund’s underlying index changed from the Defined Multi Cap Value Index to the Nasdaq AlphaDEX^® Multi Cap Value Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Multi Cap Value Index.

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First Trust Multi Cap Value AlphaDEX^® Fund (FAB)

First Trust Multi Cap Value AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 7.50%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
33.70%	June 30, 2009	-26.85%	December 31, 2008

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	25.85%	13.79%	7.04%	5/8/2007
Return After Taxes on Distributions	25.01%	13.12%	6.46%
Return After Taxes on Distributions and Sale of Fund Shares	14.58%	10.71%	5.36%
Defined Multi Cap Value Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	26.92%	14.68%	7.90%
Nasdaq AlphaDEX^® Multi Cap Value Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US Multi Cap Value Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P Composite 1500^® Index (reflects no deduction for fees, expenses or taxes)	13.03%	14.78%	6.68%
S&P Composite 1500^® Value Index (reflects no deduction for fees, expenses or taxes)	18.49%	14.87%	5.22%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Multi Cap Value Index to the Nasdaq AlphaDEX^® Multi Cap Value Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Multi Cap Value Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

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First Trust Multi Cap Value AlphaDEX^® Fund (FAB)

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

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Summary Information

First Trust Small Cap Core AlphaDEX^® Fund (FYX)

Investment Objective

The First Trust Small Cap Core AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Small Cap Core Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.50%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.13%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver and Expense Reimbursement⁽²⁾	0.00%
Net Annual Fund Operating Expenses	0.63%

(1)

Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

(2)

Example

1 Year	3 Years	5 Years	10 Years
$64	$256	$463	$1,061

Portfolio Turnover

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First Trust Small Cap Core AlphaDEX^® Fund (FYX)

Principal Investment Strategies

The Index is designed to select stocks from the NASDAQ US 700 Small Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

The Base Index is a comprehensive, rules-based index designed to measure stock market performance of small cap US companies, as determined by the Index Provider. The Fund will be concentrated in an industry or a group of industries to the extent that the Index is so concentrated.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.”
4.	The top 525 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

The Fund’s strategy includes a quarterly portfolio rebalance and reconstitution which may result in a high rate of turnover. As of July 31, 2017, the Fund had significant investments in the consumer discretionary sector and the industrials sector. The securities of companies represented in the Index generally have market capitalizations that are consistent with the name of the Index. To determine the market capitalization range of such securities, the Fund uses the current range of the Index. However, the Fund will not sell a security because the security has exceeded or fallen below the current market capitalization range of the Index. As of October 31, 2017, the market capitalization range of securities in the Index was $600 million to $7.2 billion.

Principal Risks

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First Trust Small Cap Core AlphaDEX^® Fund (FYX)

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

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First Trust Small Cap Core AlphaDEX^® Fund (FYX)

MARKET CAPITALIZATION RISK. Because of market movement, there can be no assurance that the securities held by the Fund will stay within the given market capitalization range. As a result, the Fund may be exposed to additional risk or investors may not be given the opportunity to invest fully in a certain market capitalization range. Because the Fund invests in small capitalization companies, the Fund is more vulnerable to adverse general market or economic developments, may be less liquid, and may experience greater price volatility than larger, more established companies.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

SMALLER COMPANIES RISK. Small capitalization companies may be more vulnerable to adverse general market or economic developments, and their securities may be less liquid and may experience greater price volatility than larger, more established companies as a result of several factors, including limited trading volumes, products or financial resources, management inexperience and less publicly available information. Accordingly, such companies are generally subject to greater market risk than larger, more established companies.

Annual Total Return

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See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Small Cap Core Index to the Nasdaq AlphaDEX^® Small Cap Core Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Small Cap Core Index.

First Trust Small Cap Core AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 9.98%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
29.60%	June 30, 2009	-27.22%	December 31, 2008

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The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	22.72%	13.34%	6.84%	5/8/2007
Return After Taxes on Distributions	22.19%	12.98%	6.60%
Return After Taxes on Distributions and Sale of Fund Shares	12.84%	10.51%	5.39%
Defined Small Cap Core Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	25.62%	14.50%	7.84%
Nasdaq AlphaDEX^® Small Cap Core Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 700 Small Cap Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P SmallCap 600^® Index (reflects no deduction for fees, expenses or taxes)	26.56%	16.62%	8.50%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Small Cap Core Index to the Nasdaq AlphaDEX^® Small Cap Core Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Small Cap Core Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

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First Trust Small Cap Core AlphaDEX^® Fund (FYX)

Payments to Broker-Dealers and Other Financial Intermediaries

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Summary Information

First Trust Small Cap Growth AlphaDEX^® Fund (FYC)

Investment Objective

The First Trust Small Cap Growth AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Small Cap Growth Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.70%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.00%
Total Annual Fund Operating Expenses	0.70%

(1)	Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

Example

1 Year	3 Years	5 Years	10 Years
$72	$278	$501	$1,144

Portfolio Turnover

Principal Investment Strategies

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First Trust Small Cap Growth AlphaDEX^® Fund (FYC)

The Index is designed to select growth stocks from the NASDAQ US 700 Small Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” Only those stocks designated as growth stocks are eligible for the portfolio.
4.	The top 262 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

Principal Risks

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First Trust Small Cap Growth AlphaDEX^® Fund (FYC)

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

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First Trust Small Cap Growth AlphaDEX^® Fund (FYC)

SMALLER COMPANIES RISK. Small-capitalization companies may be more vulnerable to adverse general market or economic developments, and their securities may be less liquid and may experience greater price volatility than larger, more established companies as a result of several factors, including limited trading volumes, products or financial resources, management inexperience and less publicly available information. Accordingly, such companies are generally subject to greater market risk than larger, more established companies.

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad-based market index and a specialized securities market index. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Small Cap Growth Index to the Nasdaq AlphaDEX^® Small Cap Growth Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Small Cap Growth Index.

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First Trust Small Cap Growth AlphaDEX^® Fund (FYC)

First Trust Small Cap Growth AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 18.99%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
12.73%	September 30, 2013	-8.17%	September 30, 2014

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	13.92%	13.01%	10.22%	4/19/2011
Return After Taxes on Distributions	13.76%	12.92%	10.14%
Return After Taxes on Distributions and Sale of Fund Shares	7.88%	10.38%	8.13%
Defined Small Cap Growth Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	16.07%	14.18%	11.37%
Nasdaq AlphaDEX^® Small Cap Growth Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 700 Small Cap Growth Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P Small Cap 600^® Growth Index (reflects no deduction for fees, expenses or taxes)	22.16%	16.35%	13.46%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Small Cap Growth Index to the Nasdaq AlphaDEX^® Small Cap Growth Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Small Cap Growth Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust

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•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

The Investment Committee members are primarily and jointly responsible for the day-to-day management of the Fund. Each Investment Committee member has served as a part of the portfolio management team of the Fund since 2011, except for Chris A. Peterson, who has served as a member of the portfolio management team since 2016.

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

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Summary Information

First Trust Small Cap Value AlphaDEX^® Fund (FYT)

Investment Objective

The First Trust Small Cap Value AlphaDEX^® Fund (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the Nasdaq AlphaDEX^® Small Cap Value Index (the “Index”).

Fees and Expenses of the Fund

Shareholder Fees
(fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

None

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.70%
Distribution and Service (12b-1) Fees⁽¹⁾	0.00%
Other Expenses	0.00%
Total Annual Fund Operating Expenses	0.70%

(1)	Although the Fund has adopted a 12b-1 plan that permits it to pay up to 0.25% per annum, it will not pay 12b-1 fees at any time before December 31, 2018.

Example

1 Year	3 Years	5 Years	10 Years
$72	$278	$501	$1,144

Portfolio Turnover

Principal Investment Strategies

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First Trust Small Cap Value AlphaDEX^® Fund (FYT)

The Index is designed to select value stocks from the NASDAQ US 700 Small Cap Index (the "Base Index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index attempts to generate positive alpha by identifying stocks based on three factors: value, momentum and size.

Security selection for the Index will be conducted in the following manner:

1.	The selection universe for the Index begins with all stocks in the Base Index.
2.	The Index Provider then removes any stocks which do not trade on an eligible exchange; duplicate (multiple share classes) stocks; and stocks which do not meet the Index Provider’s liquidity screens.
3.	The remaining stocks in the universe are then ranked on both growth and value factors. Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.” Only those stocks designated as value stocks are eligible for the portfolio.
4.	The top 262 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score, with higher scoring quintiles receiving a greater weight in the Index.

The Index is reconstituted and rebalanced quarterly and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The inception date of the Index was January 11, 2016. See “Index Information” for additional information.

The Fund’s strategy includes a quarterly portfolio rebalance and reconstitution which may result in a high rate of turnover. As of July 31, 2017, the Fund had significant investments in the consumer discretionary sector and the industrials sector. The securities of companies represented in the Index generally have market capitalizations that are consistent with the name of the Index. To determine the market capitalization range of such securities, the Fund uses the current range of the Index. However, the Fund will not sell a security because the security has exceeded or fallen below the current market capitalization range of the Index. As of October 31, 2017, the market capitalization range of securities in the Index was $600 million to $7.0 billion.

Principal Risks

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First Trust Small Cap Value AlphaDEX^® Fund (FYT)

additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third party service providers, such as its administrator, transfer agent, custodian, or sub-advisor, as applicable, or issuers in which the Fund invests, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third party service providers.

FLUCTUATION OF NET ASSET VALUE RISK. The net asset value of shares of the Fund will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of shares will generally fluctuate in accordance with changes in net asset value as well as the relative supply of and demand for shares on Nasdaq. The Fund’s investment advisor cannot predict whether shares will trade below, at or above their net asset value because the shares trade on Nasdaq at market prices and not at net asset value. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for shares will be closely related to, but not identical to, the same forces influencing the prices of the holdings of the Fund trading individually or in the aggregate at any point in time. However, given that shares can only be purchased and redeemed either in kind or, in certain circumstances, for cash in Creation Units, and only to and from broker-dealers and large institutional investors that have entered into participation agreements (unlike shares of closed-end funds, which frequently trade at appreciable discounts from, and sometimes at premiums to, their net asset value), the Fund’s investment advisor believes that large discounts or premiums to the net asset value of shares should not be sustained.

MARKET MAKER RISK. If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s net asset value and the price at which the Fund’s shares are trading on Nasdaq which could result in a decrease in value of the Fund’s shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Fund shares trading at a discount to net asset value and also in greater than normal intraday bid-ask spreads for Fund shares.

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First Trust Small Cap Value AlphaDEX^® Fund (FYT)

Annual Total Return

The bar chart and table below illustrate the annual calendar year returns of the Fund based on net asset value as well as the average annual Fund and Index returns. The bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year-to-year and by showing how the Fund’s average annual total returns based on net asset value compare to those of the Index, a broad-based market index and a specialized securities market index. See “Total Return Information” for additional performance information regarding the Fund. The Fund’s performance information is accessible on the Fund’s website at www.ftportfolios.com.

On April 8, 2016, the Fund’s underlying index changed from the Defined Small Cap Value Index to the Nasdaq AlphaDEX^® Small Cap Value Index. Therefore, the Fund’s performance and total returns shown below are not necessarily indicative of the performance that the Fund, based on its current Index, would have generated. Returns for an underlying index are only disclosed for those periods in which the index was in existence for the whole period. Because the Fund’s new underlying index had an inception date of January 11, 2016, it was not in existence for any of the periods disclosed. The new Index is substantially similar to the Defined Small Cap Value Index.

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First Trust Small Cap Value AlphaDEX^® Fund (FYT)

First Trust Small Cap Value AlphaDEX^® Fund
Calendar Year Total Returns as of 12/31 ⁽¹⁾

(1)	The Fund's calendar year-to-date total return based on net asset value for the period 12/31/16 to 09/30/17 was 3.03%.

During the periods shown in the chart above:

Best Quarter		Worst Quarter
13.48%	December 31, 2016	-15.49%	September 30, 2015

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Average Annual Total Returns for the Periods Ended December 31, 2016

	1 Year	5 Years	Since Inception	Inception Date
Return Before Taxes	30.15%	13.50%	11.21%	4/19/2011
Return After Taxes on Distributions	29.45%	13.07%	10.81%
Return After Taxes on Distributions and Sale of Fund Shares	17.03%	10.61%	8.78%
Defined Small Cap Value Index⁽¹⁾ (reflects no deduction for fees, expenses or taxes)	32.49%	14.68%	12.29%
Nasdaq AlphaDEX^® Small Cap Value Index^(1),(2) (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
Nasdaq US 700 Small Cap Value Index⁽²⁾ (reflects no deduction for fees, expenses or taxes)	N/A	N/A	N/A
S&P Small Cap 600^® Value Index (reflects no deduction for fees, expenses or taxes)	31.32%	16.88%	13.79%

(1)

On April 8, 2016, the Fund’s underlying index changed from the Defined Small Cap Value Index to the Nasdaq AlphaDEX^® Small Cap Value Index. Because the Fund’s new underlying index had an inception date of January 11, 2016, performance information is not included above. The new Index is substantially similar to the Defined Small Cap Value Index.

(2)	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

Management

Investment Advisor

First Trust Advisors L.P. (“First Trust” or the “Advisor”)

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Portfolio Managers

The Fund’s portfolio is managed by a team (the “Investment Committee”) consisting of:

•	Daniel J. Lindquist, Chairman of the Investment Committee and Managing Director of First Trust
•	Jon C. Erickson, Senior Vice President of First Trust
•	David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director of First Trust
•	Roger F. Testin, Senior Vice President of First Trust
•	Stan Ueland, Senior Vice President of First Trust
•	Chris A. Peterson, Senior Vice President of First Trust

The Investment Committee members are primarily and jointly responsible for the day-to-day management of the Fund. Each Investment Committee member has served as a part of the portfolio management team of the Fund since 2011, except for Chris A. Peterson, who has served as a member of the portfolio management team since 2016.

Purchase and Sale of Fund Shares

The Fund issues and redeems shares on a continuous basis, at net asset value, only in Creation Units consisting of 50,000 shares. The Fund’s Creation Units are generally issued and redeemed in-kind for securities in which the Fund invests and, in certain circumstances, for cash, and only to and from broker-dealers and large institutional investors that have entered into participation agreements. Individual shares of the Fund may only be purchased and sold on Nasdaq and other eligible securities exchanges through a broker-dealer. Shares of the Fund trade on Nasdaq at market prices rather than net asset value, which may cause the shares to trade at a price greater than net asset value (premium) or less than net asset value (discount).

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

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Additional Information on the Funds' Investment Objectives and Strategies

Each Fund is a series of the Trust, an investment company and an exchange-traded “index fund.” The investment objective of each Fund is to seek investment results that correspond generally to the price and yield (before each Fund’s fees and expenses) of such Fund’s corresponding equity index (each Fund’s corresponding equity index is referred to herein as an “Index,” and together, as the “Indices;” the provider of each Fund’s Index is referred to herein as an “Index Provider” and collectively, as the “Index Providers”).

Each Fund will normally invest at least 90% of its net assets (including investment borrowings) in securities that comprise its Index. Each Fund’s investment objective, 90% investment strategy and each of the policies described herein are non-fundamental policies that may be changed by the Board of Trustees of the Trust (the “Board”) without shareholder approval upon 60 days' prior written notice to shareholders. Certain fundamental policies of the Funds are set forth in the Statement of Additional Information (“SAI”) under “Investment Objectives and Policies.”

In seeking to achieve its investment objective, each Fund generally will invest in all of the securities comprising its Index, in proportion to their weightings in the Index. However, under various circumstances, it may not be possible or practicable to purchase all of those securities in those weightings. In those circumstances, a Fund may purchase a sample of securities in its Index. There may also be limited instances in which First Trust may choose to overweight certain securities in the applicable Index, purchase securities not in the Index which First Trust believes are appropriate to substitute for certain securities in the Index, use futures or derivative instruments, or utilize various combinations of the above techniques in seeking to track the Index. A Fund may sell securities that are represented in its Index in anticipation of their removal from the Index or purchase securities not represented in the Index in anticipation of their addition to the Index. While it is not expected that the Funds will invest in the securities of other investment companies, any such investments would be subject to limitations imposed by the 1940 Act and the related rules and interpretations. Each Fund has adopted a policy that it will not invest in other investment companies in excess of 1940 Act limits in reliance on Sections 12(d)(1)(F) or 12(d)(1)(G) of the 1940 Act.

Fund Investments

Principal Investments

Equity Securities

The Funds invest in equity securities, which primarily include common stocks.

Non-Principal Investments

Cash Equivalents and Short-Term Investments

Normally, a Fund invests substantially all of its assets to meet its investment objective. Each Fund may invest the remainder of its assets in securities with maturities of less than one year or cash equivalents, or it may hold cash. The percentage of a Fund invested in such holdings varies and depends on several factors, including market conditions. For temporary defensive purposes and during periods of high cash inflows or outflows, a Fund may depart from its principal investment strategies and invest part or all of its assets in these securities, or it may hold cash. During such periods, a Fund may not be able to achieve its investment objective. A Fund may adopt a defensive strategy when the portfolio managers believe securities in which the Fund normally invests have elevated risks due to political or economic factors and in other extraordinary circumstances. For more information on eligible short-term investments, see the SAI.

Disclosure of Portfolio Holdings

A description of the policies and procedures with respect to the disclosure of each Fund's portfolio securities is included in the Funds' SAI, which is available on the Funds' website at www.ftportfolios.com.

Additional Risks of Investing in the Funds

Risk is inherent in all investing. Investing in a Fund involves risk, including the risk that you may lose all or part of your investment. There can be no assurance that a Fund will meet its stated objective. Before you invest, you should consider the following supplemental disclosure pertaining to the Principal Risks set forth above as well as additional Non-Principal Risks set forth below in this prospectus.

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Principal Risks

CONCENTRATION RISK. A Fund will be concentrated in the securities of an individual industry if the Fund’s corresponding Index is concentrated in an individual industry. A concentration makes a Fund more susceptible to any single occurrence affecting the industry and may subject the Fund to greater market risk than more diversified funds.

EQUITY SECURITIES RISK. Equity securities may decline significantly in price over short or extended periods of time, and such declines may occur in the equity market as a whole, or they may occur in only a particular country, company, industry or sector of the market.

EXPENSE REIMBURSEMENT AND RECOUPMENT RISK. For certain Funds, the Advisor has entered into an agreement with the Trust in which the Advisor has agreed to waive certain fees and/or reimburse such Funds for expenses exceeding an agreed upon amount. This agreement may be terminated by the Trust on behalf of a Fund at any time and by the Advisor only after November 30, 2018 upon 60 days’ written notice. The Advisor is also entitled to recoup from the applicable Funds any waived fees or reimbursed amounts pursuant to the agreement for a period of up to three years from the date of waiver or reimbursement. Any such recoupment or modification or termination of the agreement could negatively affect the applicable Fund’s returns.

PASSIVE INVESTMENT RISK. No Fund is actively managed. A Fund may be affected by a general decline in certain market segments relating to its Index. A Fund invests in securities included in or representative of its Index regardless of their investment merit. A Fund generally will not attempt to take defensive positions in declining markets.

Non-Principal Risks

BORROWING AND LEVERAGE RISK. If a Fund borrows money, it must pay interest and other fees, which may reduce the Fund’s returns . Any such borrowings are intended to be temporary. However, under certain market conditions, including periods of low demand or decreased liquidity, such borrowings might be outstanding for longer periods of time. As prescribed by the 1940 Act, a Fund will be required to maintain specified asset coverage of at least 300% with respect to any bank borrowing immediately following such borrowing. A Fund may be required to dispose of assets on unfavorable terms if market fluctuations or other factors reduce the Fund’s asset coverage to less than the prescribed amount.

CASH TRANSACTIONS RISK. The Funds may, under certain circumstances, effect a portion of creations and redemptions for cash, rather than in-kind securities. As a result, an investment in the Funds may be less tax-efficient than an investment in an exchange-traded fund (“ETF”) that effects its creations and redemptions for in-kind securities. ETFs are able to make in-kind redemptions and avoid being taxed on gains on the distributed portfolio securities at the fund level. Because the Funds may effect a portion of redemptions for cash, they may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. Any recognized gain on these sales by the Funds will generally cause the Funds to recognize gain they might not otherwise have recognized, or to recognize such gain sooner than would otherwise be required if they were to distribute portfolio securities in-kind. The Funds generally intend to distribute these gains to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with the special tax rules that apply to them. This strategy may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in a different ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Funds sold and redeemed their shares in-kind, will be passed on to purchasers and redeemers of Creation Units in the form of creation and redemption transaction fees. In addition, these factors may result in wider spreads between the bid and the offered prices of the Funds’ shares than for ETFs that distribute portfolio securities in-kind.

INFLATION RISK. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the value of a Fund's assets can decline as can the value of a Fund's distributions. Common stock prices may be particularly sensitive to rising interest rates, as the cost of capital rises and borrowing costs increase.

INTELLECTUAL PROPERTY RISK. Each Fund relies on a license and related sublicense that permits a Fund to use its Index and associated trade names, trademarks and service marks (the “Intellectual Property”) in connection with the name and investment strategies of a Fund. Such license and related sublicense may be terminated by the Index Provider, and, as a result, a Fund may lose its ability to use the Intellectual Property. There is also no guarantee that the Index Provider has all rights to license the Intellectual Property for use by a Fund. Accordingly, in the event the license is terminated or the Index Provider does not have rights to license the Intellectual Property, it may have a significant effect on the operation of a Fund.

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ISSUER SPECIFIC CHANGES RISK. The value of an individual security or particular type of security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole.

LEGISLATION/LITIGATION RISK. From time to time, various legislative initiatives are proposed that may have a negative impact on certain securities in which the Funds invest. In addition, litigation regarding any of the securities owned by a Fund may negatively impact the value of the Fund’s shares. Such legislation or litigation may cause a Fund to lose value or may result in higher portfolio turnover if the Advisor determines to sell such a holding.

Fund Organization

Each Fund is a series of the Trust, an investment company registered under the 1940 Act. Each Fund is treated as a separate fund with its own investment objective and policies. The Trust is organized as a Massachusetts business trust. The Board is responsible for the overall management and direction of the Trust. The Board elects the Trust’s officers and approves all significant agreements, including those with the investment advisor, custodian and fund administrative and accounting agent.

Management of the Funds

First Trust Advisors L.P., 120 East Liberty Drive, Wheaton, Illinois 60187, is the investment advisor to the Funds. In this capacity, First Trust is responsible for the selection and ongoing monitoring of the securities in each Fund’s portfolio and certain other services necessary for the management of the portfolios.

First Trust is a limited partnership with one limited partner, Grace Partners of DuPage L.P., and one general partner, The Charger Corporation. Grace Partners of DuPage L.P. is a limited partnership with one general partner, The Charger Corporation, and a number of limited partners. The Charger Corporation is an Illinois corporation controlled by James A. Bowen, the Chief Executive Officer of First Trust. First Trust discharges its responsibilities subject to the policies of the Board.

First Trust serves as advisor or sub-advisor for 7 mutual fund portfolios, 10 exchange-traded funds consisting of 128 series and 16 closed-end funds. It is also the portfolio supervisor of certain unit investment trusts sponsored by First Trust Portfolios L.P. (“FTP”), an affiliate of First Trust, 120 East Liberty Drive, Wheaton, Illinois 60187. FTP specializes in the underwriting, trading and distribution of unit investment trusts and other securities. FTP is the principal underwriter of the shares of the Funds.

There is no one individual primarily responsible for portfolio management decisions for the Funds. Investments are made under the direction of the Investment Committee. The Investment Committee consists of Daniel J. Lindquist, Jon C. Erickson, David G. McGarel, Roger F. Testin, Stan Ueland and Chris A. Peterson.

•	Mr. Lindquist is Chairman of the Investment Committee and presides over Investment Committee meetings. Mr. Lindquist is responsible for overseeing the implementation of each Fund’s investment strategy. Mr. Lindquist was a Senior Vice President of First Trust and FTP from September 2005 to July 2012 and is now a Managing Director of First Trust and FTP.
•	Mr. Erickson joined First Trust in 1994 and is a Senior Vice President of First Trust and FTP. As the head of First Trust’s Equity Research Group, Mr. Erickson is responsible for determining the securities to be purchased and sold by funds that do not utilize quantitative investment strategies.
•	Mr. McGarel is the Chief Investment Officer, Chief Operating Officer and a Managing Director of First Trust and FTP. As First Trust’s Chief Investment Officer, Mr. McGarel consults with the other members of the Investment Committee on market conditions and First Trust’s general investment philosophy. Mr. McGarel was a Senior Vice President of First Trust and FTP from January 2004 to July 2012.
•	Mr. Testin is a Senior Vice President of First Trust and FTP. Mr. Testin is the head of First Trust’s Portfolio Management Group. Mr. Testin has been a Senior Vice President of First Trust and FTP since November 2003.
•	Mr. Ueland joined First Trust as a Vice President in August 2005 and has been a Senior Vice President of First Trust and FTP since September 2012. At First Trust, he plays an important role in executing the investment strategies of each portfolio of exchange-traded funds advised by First Trust.

•

Mr. Peterson is a Senior Vice President and head of First Trust’s strategy research group. He joined First Trust in January of 2000. Mr. Peterson is responsible for developing and implementing quantitative equity investment strategies. Mr. Peterson received his B.S. in Finance from Bradley University in 1997 and his M.B.A. from the University of Chicago Booth School of Business in 2005. He has over 19 years of financial services industry experience and is a recipient of the Chartered Financial Analyst designation.

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For additional information concerning First Trust, including a description of the services provided to the Funds, see the Funds' SAI. Additional information about the compensation of Investment Committee members, other accounts managed by members of the Investment Committee and ownership by members of the Investment Committee of shares of the Funds is provided in the SAI.

Management Fee

For First Trust Mega Cap AlphaDEX^® Fund, First Trust Mid Cap Growth AlphaDEX^® Fund, First Trust Mid Cap Value AlphaDEX^® Fund, First Trust Small Cap Growth AlphaDEX^® Fund and First Trust Small Cap Value AlphaDEX^® Fund (the “Unitary Fee Funds”), First Trust is paid an annual unitary management fee of 0.70% of such Fund’s average daily net assets and is responsible for the expenses of such Fund including the cost of transfer agency, custody, fund administration, legal, audit, license and other services, and excluding fee payments under the Investment Management Agreement, distribution and service fees, if any, brokerage expense, taxes, interest, and other extraordinary expenses.

For First Trust Consumer Discretionary AlphaDEX^® Fund, First Trust Consumer Staples AlphaDEX^® Fund, First Trust Energy AlphaDEX^® Fund, First Trust Financials AlphaDEX^® Fund, First Trust Health Care AlphaDEX^® Fund, First Trust Industrials/Producer Durables AlphaDEX^® Fund, First Trust Materials AlphaDEX^® Fund, First Trust Technology AlphaDEX^® Fund, First Trust Utilities AlphaDEX^® Fund, First Trust Large Cap Core AlphaDEX^® Fund, First Trust Large Cap Growth AlphaDEX^® Fund, Fund, First Trust Large Cap Value AlphaDEX^® Fund, First Trust Mid Cap Core AlphaDEX^® Fund, First Trust Multi Cap Growth AlphaDEX^® Fund, First Trust Multi Cap Value AlphaDEX^® Fund and First Trust Small Cap Core AlphaDEX^® (the “Expense Cap Funds”), First Trust is paid an annual management fee of 0.50% of such Fund’s average daily net assets. For such Funds, the Trust and First Trust have entered into an Expense Reimbursement, Fee Waiver and Recovery Agreement (“Recovery Agreement”) in which the Advisor has agreed to waive fees and/or reimburse Fund expenses to the extent that the operating expenses of each such Fund (excluding interest expense, brokerage commissions and other trading expenses, taxes and extraordinary expenses) exceed 0.70% of average daily net assets per year (the “Expense Cap”) at least through November 30, 2018 (the “Expense Cap Termination Date”). Each Expense Cap Fund is responsible for all of its expenses, including the investment advisory fees, costs of transfer agency, custody, fund administration, legal, audit and other services, interest, taxes, brokerage commissions and other expenses related to the execution of portfolio transactions, paying for its sublicensing fees related to the Fund’s Index, any distribution fees or expenses, and extraordinary expenses. First Trust has agreed to waive fees and/or pay Fund expenses to the extent necessary to prevent the annual operating expenses of each such Expense Cap Fund (excluding interest expense, brokerage commissions and other trading expenses, taxes and extraordinary expenses) from exceeding the Expense Cap listed above, at least until the Expense Cap Termination Date listed above. Expenses borne and fees waived by First Trust are subject to reimbursement by each Fund up to three years from the date the fee or expense was incurred by the Fund, but no reimbursement payment will be made by a Fund at any time if it would result in such Fund’s expenses exceeding its Expense Cap.

The table below sets forth the annual management fee that First Trust may receive from each Fund. The table also shows the amounts paid by the Funds to First Trust for the fiscal year ended July 31, 2017 (net of fee waivers and/or expense reimbursements, as applicable) as a percentage of average daily net assets. A discussion regarding the Board’s approval of the continuation of the Investment Management Agreement for the AlphaDEX^® Sector Funds is available in the AlphaDEX^® Sector Funds’ Annual Report to Shareholders for the year ended July 31, 2017. A discussion regarding the Board’s approval of the continuation of the Investment Management Agreement for the AlphaDEX^® Style Funds is available in the AlphaDEX^® Style Funds’ Annual Report to Shareholders for the year ended July 31, 2017.

The Unitary Fee Funds do not have an Expense Cap (as defined above) and are not a party to the Recovery Agreement.

Fund	Annual Management Fee (% of average daily net assets)	Annual Expense Cap (% of average daily net assets)	Expense Cap Termination Date	Management Fee Paid for the Year Ended 7/31/2017 (% of average daily net assets)
First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Consumer Staples AlphaDEX^® Fund (FXG)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Energy AlphaDEX^® Fund (FXN)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Financials AlphaDEX^® Fund (FXO)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Health Care AlphaDEX^® Fund (FXH)	0.50%	0.70%	November 30, 2018	0.50%

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Fund	Annual Management Fee (% of average daily net assets)	Annual Expense Cap (% of average daily net assets)	Expense Cap Termination Date	Management Fee Paid for the Year Ended 7/31/2017 (% of average daily net assets)
First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Materials AlphaDEX^® Fund (FXZ)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Technology AlphaDEX^® Fund (FXL)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Utilities AlphaDEX^® Fund (FXU)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Large Cap Core AlphaDEX^® Fund (FEX)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Large Cap Growth AlphaDEX^® Fund (FTC)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Large Cap Value AlphaDEX^® Fund (FTA)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Mega Cap AlphaDEX^® Fund (FMK)	0.70%	N/A	N/A	0.70%
First Trust Mid Cap Core AlphaDEX^® Fund (FNX)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)	0.70%	N/A	N/A	0.70%
First Trust Mid Cap Value AlphaDEX^® Fund (FNK)	0.70%	N/A	N/A	0.70%
First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Multi Cap Value AlphaDEX^® Fund (FAB)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Small Cap Core AlphaDEX^® Fund (FYX)	0.50%	0.70%	November 30, 2018	0.50%
First Trust Small Cap Growth AlphaDEX^® Fund (FYC)	0.70%	N/A	N/A	0.70%
First Trust Small Cap Value AlphaDEX^® Fund (FYT)	0.70%	N/A	N/A	0.70%

How to Buy and Sell Shares

Most investors will buy and sell shares of the Funds in secondary market transactions through brokers. Shares of the Funds are listed for trading on the secondary market on an Exchange. Shares can be bought and sold throughout the trading day like other publicly traded shares. There is no minimum investment when buying shares on an Exchange. Although shares are generally purchased and sold in “round lots” of 100 shares, brokerage firms typically permit investors to purchase or sell shares in smaller “odd lots,” at no per-share price differential. When buying or selling shares through a broker, investors should expect to incur customary brokerage commissions, investors may receive less than the net asset value of the shares because shares are bought and sold at market prices rather than at net asset value, and investors may pay some or all of the spread between the bid and the offer price in the secondary market on each leg of a round trip (purchase and sale) transaction. Share prices are reported in dollars and cents per share.

Information regarding the intra-day value of the shares of a Fund, also referred to as the “indicative optimized portfolio value” (“IOPV”), is disseminated every 15 seconds throughout such Fund’s trading day by the national securities exchange on which the shares are listed or by market data vendors or other information providers. The IOPV should not be viewed as a “real-time” update of the net asset value per share of a Fund because the IOPV may not be calculated in the same manner as the net asset value, which is computed once a day, generally at the end of the business day. A Fund is not involved in, or responsible for, the calculation or dissemination of the IOPV of shares of such Fund and such Fund does not make any warranty as to its accuracy.

For purposes of the 1940 Act, each Fund is treated as a registered investment company, and, absent an available exemption or exemptive relief, the acquisition of shares by other registered investment companies and companies relying on Sections 3(c)(1) or 3(c)(7) of the 1940 Act is subject to the restrictions of Section 12(d)(1) of the 1940 Act. The Trust, on behalf of the Funds, has received an exemptive order from the Securities and Exchange Commission that permits certain registered investment companies to invest in the Funds beyond the limits set forth in Section 12(d)(1), subject to certain terms and conditions, including that any such investment companies enter into an agreement with the Fund regarding the terms of any investment.

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Book Entry

Shares are held in book-entry form, which means that no share certificates are issued. The Depository Trust Company (“DTC”) or its nominee is the record owner of all outstanding shares of the Funds and is recognized as the owner of all shares for all purposes.

Investors owning shares are beneficial owners as shown on the records of DTC or its participants. DTC serves as the securities depository for all shares. Participants in DTC include securities brokers and dealers, banks, trust companies, clearing corporations and other institutions that directly or indirectly maintain a custodial relationship with DTC. As a beneficial owner of shares, you are not entitled to receive physical delivery of share certificates or to have shares registered in your name, and you are not considered a registered owner of shares. Therefore, to exercise any right as an owner of shares, you must rely upon the procedures of DTC and its participants. These procedures are the same as those that apply to any other stocks that you hold in book-entry or “street name” form.

Share Trading Prices

The trading price of shares of a Fund on the applicable Exchange is based on market price and may differ from the Fund’s daily net asset value and can be affected by market forces of supply and demand, economic conditions and other factors.

The Exchange intends to disseminate the approximate value of shares of the Funds every 15 seconds. This approximate value should not be viewed as a “real-time” update of the net asset value per share of the Funds because the approximate value may not be calculated in the same manner as the net asset value, which is computed once a day, generally at the end of the business day. The Funds are not involved in, or responsible for, the calculation or dissemination of the approximate value of shares of the Funds and the Funds do not make any warranty as to its accuracy.

Frequent Purchases and Redemptions of the Funds' Shares

The Funds impose no restrictions on the frequency of purchases and redemptions (“market timing”). In determining not to approve a written, established policy, the Board evaluated the risks of market timing activities by the Funds' shareholders. The Board considered that the Funds' shares can only be purchased and redeemed directly from the Funds in Creation Units by broker-dealers and large institutional investors that have entered into participation agreements (i.e., authorized participants (“APs”)) and that the vast majority of trading in the Funds' shares occurs on the secondary market. Because the secondary market trades do not involve the Funds directly, it is unlikely those trades would cause many of the harmful effects of market timing, including dilution, disruption of portfolio management, increases in the Funds' trading costs and the realization of capital gains. With respect to trades directly with the Funds, to the extent effected in-kind (i.e., for securities), those trades do not cause any of the harmful effects that may result from frequent cash trades. To the extent that Funds may effect the purchase or redemption of Creation Units in exchange wholly or partially for cash, the Board noted that such trades could result in dilution to the Funds and increased transaction costs, which could negatively impact the Funds' ability to achieve their investment objectives. However, the Board noted that direct trading by APs is critical to ensuring that the shares trade at or close to net asset value. In addition, the Funds impose fixed and variable transaction fees on purchases and redemptions of Creation Units to cover the custodial and other costs incurred by the Funds in effecting trades. Finally, the Advisor monitors purchase and redemption orders from APs for patterns of abusive trading and the Funds reserve the right to not accept orders from APs that the Advisor has determined may be disruptive to the management of the Funds, or otherwise not in the Funds' best interests.

Dividends, Distributions and Taxes

Dividends from net investment income from the Funds, if any, are declared and paid quarterly by each Fund. Each Fund distributes its net realized capital gains, if any, to shareholders at least annually.

Distributions in cash may be reinvested automatically in additional whole shares only if the broker through whom you purchased shares makes such option available. Such shares will generally be reinvested by the broker based upon the market price of those shares and investors may be subject to customary brokerage commissions charged by the broker.

Federal Tax Matters

This section summarizes some of the main U.S. federal income tax consequences of owning shares of the Funds. This section is current as of the date of this Prospectus. Tax laws and interpretations change frequently, and these summaries do not describe all of the tax consequences to all taxpayers. For example, these summaries generally do not describe your situation if you are

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a corporation, a non-U.S. person, a broker-dealer or other investor with special circumstances. In addition, this section does not describe your state, local or non-U.S. tax consequences.

This federal income tax summary is based in part on the advice of counsel to the Funds. The Internal Revenue Service could disagree with any conclusions set forth in this section. In addition, counsel to the Funds was not asked to review, and has not reached a conclusion with respect to, the federal income tax treatment of the assets to be included in the Funds. This may not be sufficient for you to use for the purpose of avoiding penalties under federal tax law.

As with any investment, you should seek advice based on your individual circumstances from your own tax advisor.

Fund Status

Each Fund intends to continue to qualify as a “regulated investment company” under the federal tax laws. If a Fund qualifies as a regulated investment company and distributes its income as required by the tax law, the Fund generally will not pay federal income taxes.

Distributions

The Funds’ distributions are generally taxable. After the end of each year, you will receive a tax statement that separates the distributions of a Fund into two categories, ordinary income distributions and capital gain dividends. Ordinary income distributions are generally taxed at your ordinary tax rate; however, as further discussed below, certain ordinary income distributions received from a Fund may be taxed at the capital gain tax rates. Generally, you will treat all capital gain dividends as long-term capital gains regardless of how long you have owned your shares. To determine your actual tax liability for your capital gain dividends, you must calculate your total net capital gain or loss for the tax year after considering all of your other taxable transactions, as described below. In addition, a Fund may make distributions that represent a return of capital for tax purposes and thus will generally not be taxable to you; however, such distributions may reduce your tax basis in your shares, which could result in you having to pay higher taxes in the future when shares are sold, even if you sell the shares at a loss from your original investment. The tax status of your distributions from a Fund is not affected by whether you reinvest your distributions in additional shares or receive them in cash. The income from a Fund that you must take into account for federal income tax purposes is not reduced by amounts used to pay a deferred sales fee, if any. The tax laws may require you to treat distributions made to you in January as if you had received them on December 31 of the previous year.

Income from a Fund may also be subject to a 3.8% “Medicare tax.” This tax generally applies to your net investment income if your adjusted gross income exceeds certain threshold amounts, which are $250,000 in the case of married couples filing joint returns and $200,000 in the case of single individuals.

Dividends Received Deduction

A corporation that owns shares generally will not be entitled to the dividends received deduction with respect to dividends received from a Fund because the dividends received deduction is generally not available for distributions from regulated investment companies. However, certain ordinary income dividends on shares that are attributable to qualifying dividends received by the Funds from certain corporations may be reported by the Funds as being eligible for the dividends received deduction.

Capital Gains and Losses and Certain Ordinary Income Dividends

If you are an individual, the maximum marginal stated federal tax rate for net capital gain is generally 20% for taxpayers in the 39.6% tax bracket, 15% for taxpayers in the 25%, 28%, 33% and 35% tax brackets and 0% for taxpayers in the 10% and 15% tax brackets. Some capital gain dividends may be taxed at a higher maximum stated federal tax rate. Capital gain received from assets held for more than one year that is considered “unrecaptured section 1250 gain” (which may be the case, for example, with some capital gains attributable to equity interests in real estate investment trusts that constitute interests in entities treated as real estate investment trusts for federal income tax purposes) is taxed at a maximum marginal stated federal tax rate of 25%. In the case of capital gain dividends, the determination of which portion of the capital gain dividend, if any, is subject to the 25% tax rate, will be made based on rules prescribed by the United States Treasury. Capital gains may also be subject to the Medicare tax described above.

Net capital gain equals net long-term capital gain minus net short-term capital loss for the taxable year. Capital gain or loss is long-term if the holding period for the asset is more than one year and is short-term if the holding period for the asset is one year or less. You must exclude the date you purchase your shares to determine your holding period. However, if you receive a capital gain dividend from a Fund and sell your shares at a loss after holding it for six months or less, the loss will be

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recharacterized as long-term capital loss to the extent of the capital gain dividend received. The tax rates for capital gains realized from assets held for one year or less are generally the same as for ordinary income. The Internal Revenue Code of 1986, as amended, treats certain capital gains as ordinary income in special situations.

Ordinary income dividends received by an individual shareholder from a regulated investment company such as the Funds are generally taxed at the same rates that apply to net capital gain (as discussed above), provided certain holding period requirements are satisfied and provided the dividends are attributable to qualifying dividends received by the Funds themselves. Each Fund will provide notice to its shareholders of the amount of any distribution which may be taken into account as a dividend which is eligible for the capital gains tax rates.

Sale of Shares

If you sell or redeem your shares, you will generally recognize a taxable gain or loss. To determine the amount of this gain or loss, you must subtract your tax basis in your shares from the amount you receive in the transaction. Your tax basis in your shares is generally equal to the cost of your shares, generally including sales charges. In some cases, however, you may have to adjust your tax basis after you purchase your shares.

Taxes on Purchase and Redemption of Creation Units

If you exchange securities for Creation Units, you will generally recognize a gain or a loss. The gain or loss will be equal to the difference between the market value of the Creation Units at the time and your aggregate basis in the securities surrendered and the cash component paid. If you exchange Creation Units for securities, you will generally recognize a gain or loss equal to the difference between your basis in the Creation Units and the aggregate market value of the securities received and the cash redemption amount. The Internal Revenue Service, however, may assert that a loss realized upon an exchange of securities for Creation Units or Creation Units for securities cannot be deducted currently under the rules governing “wash sales,” or on the basis that there has been no significant change in economic position.

Deductibility of Fund Expenses

Expenses incurred and deducted by the Funds will generally not be treated as income taxable to you. In some cases, however, you may be required to treat your portion of these Fund expenses as income. In these cases you may be able to take a deduction for these expenses. However, certain miscellaneous itemized deductions, such as investment expenses, may be deducted by individuals only to the extent that all of these deductions exceed 2% of the individual’s adjusted gross income. Some individuals may also be subject to further limitations on the amount of their itemized deductions, depending on their income.

Non-U.S. Tax Credit

Because the Funds may invest in non-U.S. securities, the tax statement that you receive may include an item showing non-U.S. taxes a Fund paid to other countries. In this case, dividends taxed to you will include your share of the taxes such Fund paid to other countries. You may be able to deduct or receive a tax credit for your share of these taxes.

Non-U.S. Investors

If you are a non-U.S. investor (i.e., an investor other than a U.S. citizen or resident or a U.S. corporation, partnership, estate or trust), you should be aware that, generally, subject to applicable tax treaties, distributions from a Fund will be characterized as dividends for federal income tax purposes (other than dividends which a Fund properly reports as capital gain dividends) and will be subject to U.S. federal income taxes, including withholding taxes, subject to certain exceptions described below. However, distributions received by a non-U.S. investor from a Fund that are properly reported by the Fund as capital gain dividends may not be subject to U.S. federal income taxes, including withholding taxes, provided that a Fund makes certain elections and certain other conditions are met. Distributions from a Fund that are properly reported by such Fund as an interest-related dividend attributable to certain interest income received by a Fund or as a short-term capital gain dividend attributable to certain net short-term capital gain income received by the Fund may not be subject to U.S. federal income taxes, including withholding taxes when received by certain non-U.S. investors, provided that a Fund makes certain elections and certain other conditions are met.

Distributions may be subject to a U.S. withholding tax of 30% in the case of distributions to (i) certain non-U.S. financial institutions that have not entered into an agreement with the U.S. Treasury to collect and disclose certain information and are not resident in a jurisdiction that has entered into such an agreement with the U.S. Treasury; and certain other non-U.S. entities that do not provide certain certifications and information about the entity’s owners. Dispositions of shares by such persons may be subject to such withholding after December 31, 2018.

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Distribution Plan

FTP serves as the distributor of Creation Units for the Funds on an agency basis. FTP does not maintain a secondary market in shares.

The Board has adopted a Distribution and Service Plan pursuant to Rule 12b-1 under the 1940 Act. In accordance with the Rule 12b-1 plan, the Funds are authorized to pay an amount up to 0.25% of their average daily net assets each year to reimburse FTP for amounts expended to finance activities primarily intended to result in the sale of Creation Units or the provision of investor services. FTP may also use this amount to compensate securities dealers or other persons that are APs for providing distribution assistance, including broker-dealer and shareholder support and educational and promotional services.

The Funds do not currently pay 12b-1 fees, and pursuant to a contractual arrangement, the Funds will not pay 12b-1 fees any time before December 31, 2018. However, in the event 12b-1 fees are charged in the future, because these fees are paid out of the Funds' assets, over time these fees will increase the cost of your investment and may cost you more than certain other types of sales charges.

Net Asset Value

Each Fund's net asset value is determined as of the close of trading (normally 4:00 p.m., Eastern Time) on each day the New York Stock Exchange (“NYSE”) is open for trading. If the NYSE closes early on a valuation day, each Fund’s net asset value will be determined as of that time. Net asset value per share is calculated for a Fund by taking the market price of the Fund’s total assets, including interest or dividends accrued but not yet collected, less all liabilities (including accrued expenses and dividends declared but unpaid), and dividing such amount by the total number of shares outstanding. The result, rounded to the nearest cent, is the net asset value per share. All valuations are subject to review by the Board or its delegate.

Each Fund's investments are valued daily at market value or, in the absence of market value with respect to any portfolio securities, at fair value, in accordance with valuation procedures adopted by the Board and in accordance with the 1940 Act. Portfolio securities listed on any exchange other than Nasdaq and the London Stock Exchange Alternative Investment Market (“AIM”) are valued at the last sale price on the business day as of which such value is being determined. Securities listed on Nasdaq or AIM are valued at the official closing price on the business day as of which such value is being determined. If there has been no sale on such day, or no official closing price in the case of securities traded on Nasdaq or AIM, the securities are fair valued at the mean of their most recent bid and ask price on such day.

Portfolio securities traded on more than one securities exchange are valued at the last sale price or official closing price, as applicable, on the business day as of which such value is being determined at the close of the exchange representing the principal market for such securities. Portfolio securities traded in the over-the-counter market, but excluding securities trading on Nasdaq or AIM, are fair valued at the mean of their most recent bid and asked price, if available, and otherwise at the closing bid price. Short-term investments that mature in less than 60 days when purchased are fair valued at cost adjusted for amortization of premiums and accretion of discount, provided the Advisor’s Pricing Committee has determined that the use of amortized cost is an appropriate reflection of fair value given market and issuer-specific conditions existing at the time of the determination.

Certain securities may not be able to be priced by pre-established pricing methods. Such securities may be valued by the Board or its delegate, the Advisor’s Pricing Committee, at fair value. The use of fair value pricing by a Fund is governed by valuation procedures adopted by the Board and in accordance with the provisions of the 1940 Act. These securities generally include, but are not limited to, certain restricted securities (securities which may not be publicly sold without registration under the Securities Act of 1933, as amended (the “Securities Act”)) for which a pricing service is unable to provide a market price; securities whose trading has been formally suspended; a security whose market or fair value price is not available from a pre-established pricing source; a security with respect to which an event has occurred that is likely to materially affect the value of the security after the market has closed but before the calculation of a Fund's net asset value or make it difficult or impossible to obtain a reliable market quotation; and a security whose price, as provided by the pricing service, does not reflect the security’s fair value. As a general principle, the current fair value of a security would appear to be the amount which the owner might reasonably expect to receive for the security upon its current sale. When fair value prices are used, generally they will differ from the current market quotations or official closing prices on the applicable exchange. A variety of factors may be considered in determining the fair value of such securities. See the Funds' SAI for details.

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Fund Service Providers

The Bank of New York Mellon Corporation, 101 Barclay Street, New York, New York 10286, acts as the administrator, custodian and fund accounting and transfer agent for the Funds. Chapman and Cutler LLP, 111 West Monroe Street, Chicago, Illinois 60603, serves as legal counsel to the Funds.

Index Providers

The Indices that the Funds seek to tract are compiled by the Index Providers. The Index Providers are not affiliated with the Funds, FTP or First Trust. Each Fund is entitled to use the applicable Index pursuant to a sublicensing arrangement by and among the Trust on behalf of each Fund, its respective Index Provider, First Trust and FTP, which in turn has a license agreement with the Index Provider. Each Index Provider, or its agent, also serves as the index calculation agent for each Index. The index calculation agent intends to calculate and disseminate the values of the Indices at least once every 15 seconds.

Disclaimers

First Trust does not guarantee the accuracy and/or the completeness of the Indices or any data included therein and First Trust shall have no liability for any errors, omissions or interruptions therein. First Trust makes no warranty, express or implied, as to results to be obtained by the Funds, owners of the shares of the Funds or any other person or entity from the use of the Indices or any data included therein. First Trust makes no express or implied warranties, and expressly disclaims all warranties of merchantability or fitness for a particular purpose or use with respect to the Indices or any data included therein. Without limiting any of the foregoing, in no event shall First Trust have any liability for any special, punitive, direct, indirect or consequential damages (including lost profits) arising out of matters relating to the use of the Indices, even if notified of the possibility of such damages.

“AlphaDEX^®” is a registered trademark of FTP. The Trust, and First Trust on behalf of the Trust, has been granted the right by FTP to use the name “AlphaDEX^®” for certain purposes.

AlphaDEX^® Sector Funds

Each of the StrataQuant^® Series Indices is a registered trademark of ICE Data Indices, LLC ("IDI" or "Index Provider") or its affiliates and is licensed for use by FTP. FTP sublicenses the StrataQuant^® Series Indices to the AlphaDEX^® Sector Funds and to First Trust. The AlphaDEX^® Sector Funds are not sponsored, endorsed, sold or promoted by IDI. IDI makes no representation or warranty, express or implied, to the owners of the AlphaDEX^® Sector Funds or any member of the public regarding the advisability of investing in securities generally or the AlphaDEX^® Sector Funds particularly or as to the result to be obtained by any person from the use of the StrataQuant^® Series in connection with the trading of the AlphaDEX^® Sector Funds.

FTP has licensed to IDI, free of charge, the right to use certain intellectual property owned by FTP, including the AlphaDEX^® trademark and the AlphaDEX^® stock selection method, in connection with the creation of the StrataQuant^® Series Indices. FTP has received a patent on the AlphaDEX^® stock selection method from the United States Patent and Trademark Office.

Notwithstanding such license, IDI is solely responsible for the creation, compilation and administration of the StrataQuant^® Series Indices and has the exclusive right to determine the stocks included in the Indices and the Indices’ methodologies.

The AlphaDEX^® Sector Funds are not sponsored, endorsed, sold or promoted by Frank Russell Company (“Underlying Index Provider”) or by the Index Provider. Neither Underlying Index Provider nor Index Provider makes any representation or warranty, express or implied, to the owners of the AlphaDEX^® Sector Funds or any member of the public regarding the advisability of investing in securities generally or in the AlphaDEX^® Sector Funds particularly or the ability of any of the StrataQuant^® Series to track general stock market performance or a segment of the same. Index Provider’s publication of the StrataQuant^® Series in no way suggests or implies an opinion by Underlying Index Provider or by Index Provider as to the advisability of investment in any or all of the securities upon which the StrataQuant^® Series is based. Index Provider’s only relationship to FTP is the licensing of certain trademarks and trade names of Index Provider and of the StrataQuant^® Series which is determined, composed and calculated by Index Provider without regard to FTP, First Trust or the AlphaDEX^® Sector Funds. Underlying Index Provider and Index Provider are not responsible for and have not reviewed the AlphaDEX^® Sector Funds nor any associated literature or publications and make no representation or warranty express or implied as to their accuracy or completeness, or otherwise. Underlying Index Provider reserves the right, at any time and without notice, to alter, amend, terminate or in any way change the StrataQuant^® Series. Underlying Index Provider and Index Provider have no obligation or liability in connection with the administration, marketing or trading of the AlphaDEX^® Sector Funds.

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THE INDEX PROVIDER DOES NOT GUARANTEE THE ACCURACY AND/OR THE COMPLETENESS OF ANY OF THE STRATAQUANT^® SERIES OR ANY DATA INCLUDED THEREIN. INDEX PROVIDER SHALL HAVE NO LIABILITY FOR ANY ERRORS, OMISSIONS, OR INTERRUPTIONS THEREIN. INDEX PROVIDER MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY FTP, FIRST TRUST, INVESTORS, OWNERS OF THE ALPHADEX^® SECTOR FUNDS, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE STRATAQUANT^® SERIES OR ANY DATA INCLUDED THEREIN. INDEX PROVIDER MAKES NO EXPRESS OR IMPLIED WARRANTIES, AND HEREBY EXPRESSLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE STRATAQUANT^® SERIES OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL INDEX PROVIDER HAVE ANY LIABILITY FOR ANY SPECIAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.

AlphaDEX^® Style Funds

FTP has licensed to Nasdaq, Inc., free of charge, the right to use certain intellectual property owned by FTP, including the AlphaDEX^® trademark and the AlphaDEX^® stock selection method, in connection with the Nasdaq, Inc.’s creation of the Indices.

Notwithstanding such license, Nasdaq, Inc. is solely responsible for the creation, compilation and administration of the Indices and has the exclusive right to determine the stocks included in the Indices and the Indices’ methodologies.

The AlphaDEX^® Style Funds are not sponsored, endorsed, sold or promoted by Nasdaq, Inc. or its affiliates (Nasdaq, Inc., with its affiliates, are referred to as the “Corporations”). The Corporations have not passed on the legality or suitability of, or the accuracy or adequacy of descriptions and disclosures relating to, the AlphaDEX^® Style Funds. The Corporations make no representation or warranty, express or implied to the owners of the AlphaDEX^® Style Funds or any member of the public regarding the advisability of investing in securities generally or in the AlphaDEX^® Style Funds particularly, or the ability of the Indices to track general market performance. The Corporations’ only relationship to First Trust is in the licensing of “Nasdaq,” and the Indices’ registered trademarks, trade names and service marks of the Corporations and the use of the Indices which are determined, composed and calculated by Nasdaq without regard to Licensee or the AlphaDEX^® Style Funds. Nasdaq, Inc. has no obligation to take the needs of the Licensee or the owners of the AlphaDEX^® Style Funds into consideration in determining, composing or calculating the Indices. The Corporations are not responsible for and have not participated in the determination of the timing of, prices at, or quantities of the AlphaDEX^® Style Funds to be issued or in the determination or calculation of the equation by which an AlphaDEX^® Style Fund is to be converted into cash. The Corporations have no liability in connection with the administration, marketing or trading of the AlphaDEX^® Style Funds.

THE CORPORATIONS DO NOT GUARANTEE THE ACCURACY AND/OR UNINTERRUPTED CALCULATION OF THE INDICES OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS MAKE NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY LICENSEE, OWNERS OF THE ALPHADEX^® STYLE FUNDS, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE INDICES OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS MAKE NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIM ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE INDICES OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL THE CORPORATIONS HAVE ANY LIABILITY FOR ANY LOST PROFITS OR SPECIAL, INCIDENTAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES, EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.

Index Information

First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the consumer discretionary sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

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1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

All stocks in the selection universe are scored and ranked using the following growth and value factors: 3, 6 and 12-month price appreciation, sales to price and 1-year sales growth (growth factors) and book value to price, cash flow to price and return on assets (value factors). All stocks are ranked on the sum of ranks for the growth factors and, separately, all stocks are ranked on the sum of ranks for the value factors.

2b.	For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive a rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.
3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the consumer discretionary sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the consumer discretionary sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

IDI reserves the right to make changes to the Index at any time. When applicable, Index changes will be announced at least two business days prior to effectiveness. The Index divisor will be maintained to ensure non-trading events will not affect the Index level. The Index will be maintained to conform to the following rules:

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Consumer Staples AlphaDEX^® Fund (FXG)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the consumer staples sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

2b.

For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive a rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.

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3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the consumer staples sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the consumer staples sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Energy AlphaDEX^® Fund (FXN)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the energy sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

2b.	For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive the rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.
3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the energy sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the energy sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

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•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Financials AlphaDEX^® Fund (FXO)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the financials sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

2b.	For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive a rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.
3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the financial services sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the financial services sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.

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•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Health Care AlphaDEX^® Fund (FXH)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the health care sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

2b.	For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive a rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.
3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the health care sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the health care sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

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First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the industrials/producer durables sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

2b.	For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive a rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.
3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the industrials/producer durables sectors are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the industrials/producer durables sectors is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Materials AlphaDEX^® Fund (FXZ)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the materials sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S.

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market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

2b.	For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive a rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.
3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the materials and processing sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the materials and processing sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Technology AlphaDEX^® Fund (FXL)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the technology sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

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2a.

2b.	For stocks in the Russell 1000^® Index that Russell has classified solely as growth or value, such stocks receive a rank for that style from step 2a as their selection score. For stocks in the Russell 1000^® Index that Russell has allocated between growth and value, such stocks receive the best rank from step 2a as their selection score.
3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the technology sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the technology sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Utilities AlphaDEX^® Fund (FXU)

Index Construction

The Index is a modified equal-dollar weighted index designed by IDI to objectively identify and select stocks from the Russell 1000^® Index in the utilities sector that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Russell 1000^® Index consists of approximately 1,000 of the largest stocks within the Russell 3000^® Index. The Russell 3000^® Index is constructed to represent approximately 98% of the U.S. market. The Index was created and trademarked by AMEX on April 11, 2007. The initial divisor was created to set a benchmark value of 1000.00 on July 3, 2003. The value of the Index is disseminated every 15 seconds over the Consolidated Tape Association’s Network B between the hours of approximately 9:30 a.m. and 4:15 p.m. Eastern time.

IDI constructs the Index in the following manner:

1.	The selection universe of stocks is constituents of the Russell 1000^® Index.

2a.

2b.

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3.	The selection universe is then divided into respective sectors as defined by Russell. The component stocks contained in the utilities sector are ranked according to their selection score from step 2b. The bottom 25% in such sector is eliminated.
4.	The top 75% of the stocks contained in the utilities sector is then split into quintiles based on their score from step 3. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted as of the last business day of each calendar quarter.

•	Mergers: Components being acquired will be removed from the Index upon effectiveness of the merger. If the acquiring company is also an Index member their weight will be increased by the Index weight of the acquired component.
•	Spin-offs: The Index component’s price and shares will be adjusted to maintain its pre spin-off Index weight.
•	Extraordinary Dividends: The Index component’s price will be adjusted to ensure the component’s weight is not reduced by the distribution.
•	Deletions: Components will be removed from the Index if they are removed from a listed exchange. Removed components will not be replaced.
•	Splits and Stock Dividends: Stock splits and stock dividends will be adjusted on effective date.
•	Cash Dividends: The price return Index will not be adjusted for cash dividends.

First Trust Large Cap Core AlphaDEX^® Fund (FEX)

Index Construction

The Index is designed to select stocks from the NASDAQ US 500 Large Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 500 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

Rank all remaining stocks in the universe on both growth and value factors. The five growth factors are 3, 6 and 12-month price appreciation, sales to price and 1-year sales growth. The three value factors are book value to price, cash flow to price and return on assets. All stocks are ranked on the sum of ranks for the growth factors and, separately, all stocks are ranked on the sum of ranks for the value factors. A stock must have data for all growth and/or value factors to receive a rank for that style.

Each stock is classified as either a value stock or a growth stock, as determined by the Index Provider. A stock classified as a value stock will receive its value rank as its “selection score” and a stock classified as a growth stock will receive its growth rank as its “selection score.”

The top 375 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

The Index is rebalanced and reconstituted quarterly. Acquired companies are deleted at the close on the day the merger closes for both cash and stock deals. An acquired company’s weight in the Index is reallocated pro rata among the remaining Index constituents. Spin-offs are not included in the Index. The value of the spin-off is reallocated to the parent company.

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First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

Index Construction

The Index is designed to select growth stocks from the NASDAQ US 500 Large Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 500 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

The top 187 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

Index Construction

The Index is designed to select value stocks from the NASDAQ US 500 Large Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 500 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

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First Trust Mega Cap AlphaDEX^® Fund (FMK)

Index Construction

The Index is designed to select mega cap stocks from the NASDAQ US 500 Large Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 500 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

2.	The remaining stocks are then ranked by market capitalization. Only the top 100 largest stocks by market capitalization are eligible for the portfolio.

4.	Each stock receives the best rank from step 3 as its selection score.
5.	The top 50 stocks based on the selection score determined in step 4 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.
6.	A sector constraint is applied such that no sector may be weighted more than 15% above its weight in the Base Index.

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

Index Construction

The Index is designed to select stocks from the NASDAQ US 600 Mid Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 500 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

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The top 450 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

Index Construction

The Index is designed to select growth stocks from the NASDAQ US 600 Mid Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 599 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

The top 225 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

Index Construction

The Index is designed to select value stocks from the NASDAQ US 600 Mid Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 599 securities, that may generate positive alpha, or risk-adjusted returns, relative to

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traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)

Index Construction

The Index is designed to select growth stocks from the NASDAQ US 500 Large Cap Index, NASDAQ US 600 Mid Cap Index and NASDAQ US 700 Small Cap Index (the “Base Indices”), which, as of October 31, 2017, were comprised of 500, 599 and 700 securities, respectively, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Indices. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

Rank all remaining stocks in each Base Index on both growth and value factors. The five growth factors are 3, 6 and 12-month price appreciation, sales to price and 1-year sales growth. The three value factors are book value to price, cash flow to price and return on assets. All stocks are ranked on the sum of ranks for the growth factors and, separately, all stocks are ranked on the sum of ranks for the value factors. A stock must have data for all growth and/or value factors to receive a rank for that style.

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The top 187 stocks from the NASDAQ US 500 Large Cap Index, top 225 stocks from the NASDAQ US 600 Mid Cap Index and top 262 stocks from the NASDAQ US 700 Small Cap Index based on the selection score determined in step 3 comprise the “selected stocks.” Within each size class, the selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

First Trust Multi Cap Value AlphaDEX^® Fund (FAB)

Index Construction

The Index is designed to select value stocks from the NASDAQ US 500 Large Cap Index, NASDAQ US 600 Mid Cap Index and NASDAQ US 700 Small Cap Index (the “Base Indices”), which, as of October 31, 2017, were comprised of 500, 599 and 700 securities, respectively, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Indices. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

The top 187 stocks from the NASDAQ US 500 Large Cap Index, top 225 stocks from the NASDAQ US 600 Mid Cap Index and top 262 stocks from the NASDAQ US 700 Small Cap Index based on the selection score determined in step 3 comprise the “selected stocks.” Within each size class, the selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

First Trust Small Cap Core AlphaDEX^® Fund (FYX)

Index Construction

The Index is designed to select stocks from the NASDAQ US 700 Small Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 700 securities, that may generate positive alpha, or risk-adjusted returns, relative to

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1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

The top 525 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

First Trust Small Cap Growth AlphaDEX^® Fund (FYC)

Index Construction

The Index is designed to select growth stocks from the NASDAQ US 700 Small Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 700 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

The top 262 stocks based on the selection score determined in step 3 comprise the “selected stocks.” The selected stocks are then split into quintiles based on their selection score. The top ranked quintile receives 5/15 (33.3%) of the portfolio weight with successive quintiles receiving 4/15 (26.7%), 3/15 (20.0%), 2/15 (13.3%) and 1/15 (6.7%), respectively. Stocks are equally weighted within each quintile.

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First Trust Small Cap Value AlphaDEX^® Fund (FYT)

Index Construction

The Index is designed to select value stocks from the NASDAQ US 700 Small Cap Index (the “Base Index”), which, as of October 31, 2017, was comprised of 700 securities, that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX^® selection methodology. Alpha is an indication of how much an investment outperforms or underperforms on a risk-adjusted basis relative to its benchmark. The Index is constructed in the following manner:

1.	Start with all stocks in the Base Index. Exclude the following:

i.	Stocks which do not trade on an eligible exchange.
ii.	Duplicates (multiple share classes) of a common issuer.
iii.	Stocks with an average daily dollar volume over any rolling five day period during the last 60 trading days of less than $500,000USD.

The AlphaDEX^® Style Funds will make changes to their portfolios shortly after changes to the Indices are released to the public. Investors are able to access the holdings of each AlphaDEX^® Style Fund and the composition and compilation methodology of the Indices through the AlphaDEX^® Style Funds’ website at www.ftportfolios.com.

In the event that Nasdaq, Inc. no longer calculates the Indices, the Indices’ license is terminated or the identity or character of any of the Indices is materially changed, the Board will seek to engage a replacement index. However, if that proves to be impracticable, the Board will take whatever action it deems to be in the best interests of the AlphaDEX^® Style Funds. The Board will also take whatever actions it deems to be in the best interests of the AlphaDEX^® Style Funds if the AlphaDEX^® Style Funds’ shares are delisted.

Premium/Discount Information

The tables that follow present information about the differences between each Fund’s daily market price on the applicable Exchange and its net asset value. The “Market Price” of a Fund generally is determined using the midpoint between the highest bid and lowest offer on the Exchange, as of the time a Fund’s net asset value is calculated. A Fund’s Market Price may be at, above, or below its net asset value. The net asset value of a Fund will fluctuate with changes in the market value of its portfolio holdings. The Market Price of a Fund will fluctuate in accordance with changes in its net asset value, as well as market supply and demand.

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Premiums or discounts are the differences (generally expressed as a percentage) between the net asset value and Market Price of a Fund on a given day, generally at the time net asset value is calculated. A premium is the amount that a Fund is trading above the reported net asset value. A discount is the amount that a Fund is trading below the reported net asset value.

The following information shows the frequency distribution of premiums and discounts of the daily bid/ask price of each Fund against its net asset value. The information shown for each Fund is for the periods indicated. Shareholders may pay more than net asset value when they buy Fund shares and receive less than net asset value when they sell those shares because shares are bought and sold at current market price. All data presented here represents past performance, which cannot be used to predict future results. Information about the premiums and discounts at which the Funds’ shares have traded is available on the Funds’ website at www.ftportfolios.com.

First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	123	0	0	0
9 Months Ended 9/30/2017	63	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	129	0	0	0
9 Months Ended 9/30/2017	125	0	0	0

First Trust Consumer Staples AlphaDEX^® Fund (FXG)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	115	0	0	0
9 Months Ended 9/30/2017	92	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	137	0	0	0
9 Months Ended 9/30/2017	96	0	0	0

First Trust Energy AlphaDEX^® Fund (FXN)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	141	0	0	0
9 Months Ended 9/30/2017	88	0	0	0

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Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	111	0	0	0
9 Months Ended 9/30/2017	100	0	0	0

First Trust Financials AlphaDEX^® Fund (FXO)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	161	0	0	0
9 Months Ended 9/30/2017	88	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	91	0	0	0
9 Months Ended 9/30/2017	100	0	0	0

First Trust Health Care AlphaDEX^® Fund (FXH)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	127	0	0	0
9 Months Ended 9/30/2017	111	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	125	0	0	0
9 Months Ended 9/30/2017	77	0	0	0

First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	172	0	0	0
9 Months Ended 9/30/2017	97	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	80	0	0	0
9 Months Ended 9/30/2017	91	0	0	0

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First Trust Materials AlphaDEX^® Fund (FXZ)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	149	0	0	0
9 Months Ended 9/30/2017	108	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	103	0	0	0
9 Months Ended 9/30/2017	80	0	0	0

First Trust Technology AlphaDEX^® Fund (FXL)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	160	0	0	0
9 Months Ended 9/30/2017	120	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	92	0	0	0
9 Months Ended 9/30/2017	68	0	0	0

First Trust Utilities AlphaDEX^® Fund (FXU)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	150	0	0	0
9 Months Ended 9/30/2017	82	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	102	0	0	0
9 Months Ended 9/30/2017	106	0	0	0

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First Trust Large Cap Core AlphaDEX^® Fund (FEX)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	146	0	0	0
9 Months Ended 9/30/2017	122	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	106	0	0	0
9 Months Ended 9/30/2017	66	0	0	0

First Trust Large Cap Growth AlphaDEX^® Fund (FTC)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	173	0	0	0
9 Months Ended 9/30/2017	94	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	79	0	0	0
9 Months Ended 9/30/2017	94	0	0	0

First Trust Large Cap Value AlphaDEX^® Fund (FTA)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	122	0	0	0
9 Months Ended 9/30/2017	102	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	130	0	0	0
9 Months Ended 9/30/2017	86	0	0	0

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First Trust Mega Cap AlphaDEX^® Fund (FMK)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	96	0	0	0
9 Months Ended 9/30/2017	54	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	156	0	0	0
9 Months Ended 9/30/2017	134	0	0	0

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	155	0	0	0
9 Months Ended 9/30/2017	103	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	97	0	0	0
9 Months Ended 9/30/2017	85	0	0	0

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	105	0	0	0
9 Months Ended 9/30/2017	138	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	147	0	0	0
9 Months Ended 9/30/2017	50	0	0	0

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First Trust Mid Cap Value AlphaDEX^® Fund (FNK)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	167	0	0	0
9 Months Ended 9/30/2017	115	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	85	0	0	0
9 Months Ended 9/30/2017	73	0	0	0

First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	76	0	0	0
9 Months Ended 9/30/2017	132	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	176	0	0	0
9 Months Ended 9/30/2017	56	0	0	0

First Trust Multi Cap Value AlphaDEX^® Fund (FAB)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	111	0	0	0
9 Months Ended 9/30/2017	65	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	141	0	0	0
9 Months Ended 9/30/2017	123	0	0	0

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First Trust Small Cap Core AlphaDEX^® Fund (FYX)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	115	0	0	0
9 Months Ended 9/30/2017	90	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	137	0	0	0
9 Months Ended 9/30/2017	98	0	0	0

First Trust Small Cap Growth AlphaDEX^® Fund (FYC)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	158	0	0	0
9 Months Ended 9/30/2017	110	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	94	0	0	0
9 Months Ended 9/30/2017	78	0	0	0

First Trust Small Cap Value AlphaDEX^® Fund (FYT)
Bid/Ask Midpoint vs. Net Asset Value

Number of Days Bid/Ask Midpoint At/Above Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	125	0	0	0
9 Months Ended 9/30/2017	64	0	0	0

Number of Days Bid/Ask Midpoint Below Net Asset Value

	0.00%–0.49%	0.50%–0.99%	1.00%–1.99%	>=2.00%
12 Months Ended 12/31/2016	127	0	0	0
9 Months Ended 9/30/2017	124	0	0	0

Total Return Information

The tables below compare the total return of the Funds to the total return of the Index on which it is based and relevant market indices. The information presented for the Funds is for the period indicated. The total returns would have been lower if certain fees had not been waived and expenses reimbursed by First Trust.

"Average annual total returns" represent the average annual change in the value of an investment over the period indicated. “Cumulative total returns” represent the total change in value of an investment over the period indicated. The net asset value

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per share of a Fund is the value of one share of a Fund and is computed by dividing the value of all assets of the Fund (including accrued interest and dividends), less liabilities (including accrued expenses and dividends declared but unpaid), by the total number of outstanding shares. The net asset value return is based on the net asset value per share of a Fund, and the market return is based on the market price per share of a Fund. The price used to calculate market return (“Market Price”) generally is determined by using the midpoint between the highest bid and the lowest offer on the Exchange on which the shares of a Fund are listed for trading, as of the time that a Fund's net asset value is calculated. Since the shares of the Funds typically do not trade in the secondary market until several days after a Fund's inception, for the period from inception to the first day of secondary market trading in shares of a Fund, the net asset value of a Fund is used as a proxy for the secondary market trading price to calculate market returns. Market and net asset value returns assume that dividends and capital gain distributions have been reinvested in a Fund at Market Price and net asset value, respectively. An index is a statistical composite that tracks a specified financial market or sector. Unlike the Funds, an index does not actually hold a portfolio of securities and therefore does not incur the expenses incurred by a Fund. These expenses negatively impact the performance of the Funds. Also, market returns do not include brokerage commissions that may be payable on secondary market transactions. If brokerage commissions were included, market returns would be lower. The total returns reflect the reinvestment of dividends on securities in the Indices. The returns shown in the table below do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of shares of a Fund. The investment return and principal value of shares of a Fund will vary with changes in market conditions. Shares of a Fund may be worth more or less than their original cost when they are redeemed or sold in the market. The Funds' past performance is no guarantee of future results.

First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	5.10%	13.83%	7.95%	7.14%	91.10%	114.98%	102.40%
Market Price	5.13%	13.85%	7.95%	7.13%	91.28%	114.85%	102.39%
Index Performance
Russell 1000^® Consumer Discretionary and Services Index	13.82%	17.01%	N/A	N/A	119.33%	N/A	N/A
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
S&P 500^® Consumer Discretionary Index	13.90%	17.92%	11.34%	10.42%	127.99%	192.70%	175.65%
StrataQuant^® Consumer Discretionary Index	5.78%	14.61%	8.73%	7.92%	97.76%	130.94%	117.99%

First Trust Consumer Staples AlphaDEX^® Fund (FXG)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	-3.31%	16.58%	10.87%	10.12%	115.30%	180.64%	168.15%
Market Price	-3.31%	16.61%	10.87%	10.12%	115.57%	180.63%	168.14%
Index Performance
Russell 1000^® Consumer Staples Index	3.66%	12.90%	N/A	N/A	83.41%	N/A	N/A
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
S&P 500^® Consumer Staples Index	4.39%	12.12%	10.77%	10.24%	77.16%	178.18%	171.14%
StrataQuant^® Consumer Staples Index	-2.68%	17.37%	11.69%	10.94%	122.69%	202.14%	189.26%

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First Trust Energy AlphaDEX^® Fund (FXN)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	-4.99%	-4.63%	-3.21%	-2.80%	-21.08%	-27.87%	-25.20%
Market Price	-4.99%	-4.61%	-3.22%	-2.80%	-21.04%	-27.91%	-25.20%
Index Performance
Russell 1000^® Energy Index	-0.46%	0.57%	N/A	N/A	2.89%	N/A	N/A
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
S&P 500^® Energy Index	0.19%	1.31%	1.46%	2.14%	6.73%	15.54%	24.13%
StrataQuant^® Energy Index	-4.26%	-4.14%	-2.63%	-2.20%	-19.07%	-23.36%	-20.40%

First Trust Financials AlphaDEX^® Fund (FXO)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	24.00%	17.07%	6.86%	5.55%	119.92%	94.10%	73.82%
Market Price	24.00%	17.07%	6.84%	5.55%	119.92%	93.87%	73.81%
Index Performance
Russell 1000^® Financial Services Index	25.58%	17.36%	N/A	N/A	122.60%	N/A	N/A
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
S&P 500^® Financials Index	32.99%	18.36%	1.38%	0.18%	132.29%	14.66%	1.85%
StrataQuant^® Financials Index	24.79%	17.90%	7.73%	6.43%	127.83%	110.59%	89.24%

First Trust Health Care AlphaDEX^® Fund (FXH)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	8.72%	17.50%	13.21%	12.60%	123.94%	245.83%	236.84%
Market Price	8.74%	17.51%	13.20%	12.61%	124.05%	245.52%	236.89%
Index Performance
Russell 1000^® Health Care Index	8.43%	18.19%	N/A	N/A	130.63%	N/A	N/A
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
S&P 500^® Health Care Index	8.00%	17.79%	11.15%	10.01%	126.76%	187.80%	165.41%
StrataQuant^® Health Care Index	9.39%	18.28%	14.02%	13.42%	131.53%	271.53%	262.78%

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First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	22.81%	15.81%	7.32%	6.54%	108.35%	102.66%	91.21%
Market Price	22.81%	15.81%	7.29%	6.54%	108.35%	102.13%	91.22%
Index Performance
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
Russell 1000^® Producer Durables Index	19.84%	16.56%	N/A	N/A	115.18%	N/A	N/A
S&P 500^® Industrials Index	18.31%	15.98%	7.54%	7.78%	109.85%	106.94%	115.22%
StrataQuant^® Industrials Index	23.90%	16.65%	8.11%	7.34%	116.02%	118.16%	106.32%

First Trust Materials AlphaDEX^® Fund (FXZ)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	14.01%	12.81%	8.21%	8.11%	82.66%	120.23%	122.10%
Market Price	13.98%	12.82%	8.21%	8.11%	82.77%	120.17%	122.04%
Index Performance
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
Russell 1000^® Materials And Processing Index	15.11%	12.53%	N/A	N/A	80.42%	N/A	N/A
S&P 500^® Materials Index	14.58%	11.70%	5.76%	5.58%	73.90%	75.03%	74.26%
StrataQuant^® Materials Index	14.79%	13.60%	9.02%	8.92%	89.23%	137.20%	139.66%

First Trust Technology AlphaDEX^® Fund (FXL)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	30.72%	17.28%	8.57%	8.61%	121.89%	127.49%	132.83%
Market Price	30.71%	17.30%	8.58%	8.61%	122.04%	127.76%	132.88%
Index Performance
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
Russell 1000^® Technology Index	29.32%	17.29%	N/A	N/A	122.00%	N/A	N/A
S&P 500^® Information Technology Index	29.48%	17.94%	11.22%	11.13%	128.24%	189.71%	194.33%
StrataQuant^® Technology Index	31.06%	18.01%	9.39%	9.43%	128.92%	145.34%	151.52%

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First Trust Utilities AlphaDEX^® Fund (FXU)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	3.57%	11.99%	7.50%	6.44%	76.12%	106.18%	89.38%
Market Price	3.60%	11.99%	7.50%	6.44%	76.12%	106.15%	89.35%
Index Performance
Russell 1000^® Index	15.95%	14.85%	7.84%	7.31%	99.80%	112.68%	105.75%
Russell 1000^® Utilities Index	0.89%	9.32%	N/A	N/A	56.11%	N/A	N/A
S&P 500^® Utilities Index	5.70%	11.15%	7.64%	6.40%	69.63%	108.77%	88.59%
StrataQuant^® Utilities Index	4.26%	12.92%	8.41%	7.34%	83.57%	124.24%	106.42%

First Trust Large Cap Core AlphaDEX^® Fund (FEX)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	16.68%	15.04%	7.86%	7.20%	101.51%	113.07%	103.70%
Market Price	16.66%	15.05%	7.86%	7.20%	101.54%	113.14%	103.69%
Index Performance
Defined Large Cap Core Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Large Cap Core Index^(1),(2)	17.45%	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq US 500 Large Cap Index⁽²⁾	16.17%	N/A	N/A	N/A	N/A	N/A	N/A
S&P 500^® Index	16.04%	14.78%	7.74%	7.23%	99.22%	110.73%	104.20%

⁽¹⁾	The Defined Large Cap Core Index was replaced with the Nasdaq AlphaDEX^® Large Cap Core Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

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First Trust Large Cap Growth AlphaDEX^® Fund (FTC)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	9.10%	15.23%	7.41%	6.96%	103.16%	104.34%	99.03%
Market Price	9.16%	15.23%	7.39%	6.96%	103.16%	104.06%	99.09%
Index Performance
Defined Large Cap Growth Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Large Cap Growth Index^(1),(2)	9.81%	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq US 500 Large Cap Growth Index⁽²⁾	15.28%	N/A	N/A	N/A	N/A	N/A	N/A
S&P 500^® Growth Index	16.97%	15.41%	9.49%	9.06%	104.78%	147.68%	142.77%
S&P 500^® Index	16.04%	14.78%	7.74%	7.23%	99.22%	110.73%	104.20%

⁽¹⁾	The Defined Large Cap Growth Index was replaced with the Nasdaq AlphaDEX^® Large Cap Growth Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

First Trust Large Cap Value AlphaDEX^® Fund (FTA)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	23.35%	14.64%	7.91%	7.13%	98.01%	114.09%	102.31%
Market Price	23.37%	14.66%	7.89%	7.13%	98.18%	113.66%	102.34%
Index Performance
Defined Large Cap Value Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Large Cap Value Index^(1),(2)	24.21%	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq US 500 Large Cap Value Index⁽²⁾	16.94%	N/A	N/A	N/A	N/A	N/A	N/A
S&P 500^® Index	16.04%	14.78%	7.74%	7.23%	99.22%	110.73%	104.20%
S&P 500^® Value Index	14.34%	13.94%	5.81%	5.24%	92.00%	75.94%	68.65%

⁽¹⁾	The Defined Large Cap Value Index was replaced with the Nasdaq AlphaDEX^® Large Cap Value Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

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First Trust Mega Cap AlphaDEX^® Fund (FMK)
Total Returns as of July 31, 2017

		Average Annual		Cumulative
	1 Year	5 Years	Inception (5/11/2011)	5 Years	Inception (5/11/2011)
Fund Performance
Net Asset Value	16.10%	13.08%	9.00%	84.86%	70.97%
Market Price	16.23%	13.08%	9.00%	84.86%	70.97%
Index Performance
Defined Mega Cap Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Mega Cap Index^(1),(2)	17.00%	N/A	N/A	N/A	N/A
Nasdaq US 500 Large Cap Index⁽²⁾	16.17%	N/A	N/A	N/A	N/A
S&P 100^® Index	15.82%	13.96%	12.73%	92.23%	110.70%

⁽¹⁾	The Defined Mega Cap Index was replaced with the Nasdaq AlphaDEX^® Mega Cap Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	14.61%	12.92%	8.54%	7.82%	83.59%	126.84%	116.10%
Market Price	14.61%	12.94%	8.54%	7.82%	83.75%	126.92%	116.10%
Index Performance
Defined Mid Cap Core Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Mid Cap Core Index^(1),(2)	15.43%	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq US 600 Mid Cap Index⁽²⁾	14.67%	N/A	N/A	N/A	N/A	N/A	N/A
S&P MidCap 400^® Index	14.69%	15.13%	9.13%	8.50%	102.26%	139.66%	130.43%

⁽¹⁾	The Defined Mid Cap Core Index was replaced with the Nasdaq AlphaDEX^® Mid Cap Core Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

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First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)
Total Returns as of July 31, 2017

		Average Annual		Cumulative
	1 Year	5 Years	Inception (4/19/2011)	5 Years	Inception (4/19/2011)
Fund Performance
Net Asset Value	12.94%	12.96%	9.60%	83.91%	77.89%
Market Price	13.05%	12.95%	9.60%	83.81%	77.89%
Index Performance
Defined Mid Cap Growth Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Mid Cap Growth Index^(1),(2)	13.81%	N/A	N/A	N/A	N/A
Nasdaq US 600 Mid Cap Growth Index⁽²⁾	12.54%	N/A	N/A	N/A	N/A
S&P MidCap 400^® Growth Index	13.71%	14.77%	11.34%	99.11%	96.35%

⁽¹⁾	The Defined Mid Cap Growth Index was replaced with the Nasdaq AlphaDEX^® Mid Cap Growth Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

First Trust Mid Cap Value AlphaDEX^® Fund (FNK)
Total Returns as of July 31, 2017

		Average Annual		Cumulative
	1 Year	5 Years	Inception (4/19/2011)	5 Years	Inception (4/19/2011)
Fund Performance
Net Asset Value	15.72%	12.60%	9.79%	80.99%	79.83%
Market Price	15.72%	12.56%	9.79%	80.71%	79.83%
Index Performance
Defined Mid Cap Value Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Mid Cap Value Index^(1),(2)	16.61%	N/A	N/A	N/A	N/A
Nasdaq US 600 Mid Cap Value Index⁽²⁾	16.73%	N/A	N/A	N/A	N/A
S&P MidCap 400^® Value Index	14.91%	15.26%	11.73%	103.40%	100.75%

⁽¹⁾	The Defined Mid Cap Value Index was replaced with the Nasdaq AlphaDEX^® Mid Cap Value Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

171

Table of Contents

First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	11.85%	14.32%	7.69%	7.30%	95.26%	109.83%	105.57%
Market Price	11.89%	14.34%	7.68%	7.30%	95.42%	109.58%	105.59%
Index Performance
Defined Multi Cap Growth Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Multi Cap Growth Index^(1),(2)	12.68%	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq US Multi Cap Growth Index⁽²⁾	15.19%	N/A	N/A	N/A	N/A	N/A	N/A
S&P Composite 1500^® Growth Index	16.81%	15.40%	9.55%	9.11%	104.67%	148.97%	143.90%
S&P Composite 1500^® Index	16.00%	14.85%	7.90%	7.38%	99.84%	113.97%	107.09%

⁽¹⁾	The Defined Multi Cap Growth Index was replaced with the Nasdaq AlphaDEX^® Multi Cap Growth Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

First Trust Multi Cap Value AlphaDEX^® Fund (FAB)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	19.46%	13.65%	8.11%	7.18%	89.64%	118.19%	103.28%
Market Price	19.46%	13.67%	8.07%	7.18%	89.79%	117.35%	103.23%
Index Performance
Defined Multi Cap Value Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Multi Cap Value Index^(1),(2)	20.34%	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq US Multi Cap Value Index⁽²⁾	16.99%	N/A	N/A	N/A	N/A	N/A	N/A
S&P Composite 1500^® Index	16.00%	14.85%	7.90%	7.38%	99.84%	113.97%	107.09%
S&P Composite 1500^® Value Index	14.46%	14.10%	6.11%	5.51%	93.40%	81.01%	73.18%

⁽¹⁾	The Defined Multi Cap Value Index was replaced with the Nasdaq AlphaDEX^® Multi Cap Value Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

172

Table of Contents

First Trust Small Cap Core AlphaDEX^® Fund (FYX)
Total Returns as of July 31, 2017

		Average Annual			Cumulative
	1 Year	5 Years	10 Years	Inception (5/8/2007)	5 Years	10 Years	Inception (5/8/2007)
Fund Performance
Net Asset Value	16.03%	13.37%	7.73%	6.94%	87.28%	110.61%	98.68%
Market Price	16.08%	13.37%	7.74%	6.94%	87.31%	110.80%	98.65%
Index Performance
Defined Small Cap Core Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Small Cap Core Index^(1),(2)	16.77%	N/A	N/A	N/A	N/A	N/A	N/A
Nasdaq US 700 Small Cap Index⁽²⁾	19.14%	N/A	N/A	N/A	N/A	N/A	N/A
S&P SmallCap 600^® Index	17.66%	15.87%	9.11%	8.39%	108.90%	139.10%	127.97%

⁽¹⁾	The Defined Small Cap Core Index was replaced with the Nasdaq AlphaDEX^® Small Cap Core Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

First Trust Small Cap Growth AlphaDEX^® Fund (FYC)
Total Returns as of July 31, 2017

		Average Annual		Cumulative
	1 Year	5 Years	Inception (4/19/2011)	5 Years	Inception (4/19/2011)
Fund Performance
Net Asset Value	17.12%	13.98%	11.25%	92.41%	95.43%
Market Price	17.11%	14.02%	11.26%	92.74%	95.48%
Index Performance
Defined Small Cap Growth Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Small Cap Growth Index^(1),(2)	18.03%	N/A	N/A	N/A	N/A
Nasdaq US 700 Small Cap Growth Index⁽²⁾	19.30%	N/A	N/A	N/A	N/A
S&P SmallCap 600^® Growth Index	18.49%	15.99%	13.17%	109.95%	117.56%

⁽¹⁾	The Defined Small Cap Growth Index was replaced with the Nasdaq AlphaDEX^® Small Cap Growth Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

173

Table of Contents

First Trust Small Cap Value AlphaDEX^® Fund (FYT)
Total Returns as of July 31, 2017

		Average Annual		Cumulative
	1 Year	5 Years	Inception (4/19/2011)	5 Years	Inception (4/19/2011)
Fund Performance
Net Asset Value	15.41%	12.69%	9.98%	81.71%	81.79%
Market Price	15.52%	12.72%	9.99%	81.95%	81.85%
Index Performance
Defined Small Cap Value Index⁽¹⁾	N/A	N/A	N/A	N/A	N/A
Nasdaq AlphaDEX^® Small Cap Value Index^(1),(2)	16.26%	N/A	N/A	N/A	N/A
Nasdaq US 700 Small Cap Value Index⁽²⁾	18.93%	N/A	N/A	N/A	N/A
S&P SmallCap 600^® Value Index	16.60%	15.70%	12.72%	107.37%	112.16%

⁽¹⁾	The Defined Small Cap Value Index was replaced with the Nasdaq AlphaDEX^® Small Cap Value Index effective April 8, 2016. The new index is substantially similar to the old index. The old index was terminated on February 22, 2017, so performance data does not exist for these time periods.
⁽²⁾	Performance data is not available for all the periods shown in the table for the index because performance data does not exist for some of the entire periods.

174

Table of Contents

Financial Highlights

The financial highlights table is intended to help you understand each Fund's financial performance for the period shown. Certain information reflects financial results for a single share of the Funds. The total returns represent the rate that an investor would have earned (or lost) on an investment in a Fund (assuming reinvestment of all dividends and distributions). The information for the periods indicated has been derived from financial statements audited by Deloitte & Touche LLP, whose report, along with each Fund's financial statements, is included in the Funds' Annual Reports to Shareholders dated July 31, 2017 and is incorporated by reference in each Fund's SAI, which is available upon request.

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Consumer Discretionary AlphaDEX^® Fund (FXD)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$36.06	$37.29	$32.24	$28.81	$20.52
Income from investment operations:
Net investment income (loss)	0.34	0.53	0.30	0.13	0.29
Net realized and unrealized gain (loss)	1.48	(1.43)	5.03	3.43	8.29
Total from investment operations	1.82	(0.90)	5.33	3.56	8.58
Distributions paid to shareholders from:
Net investment income	(0.35)	(0.33)	(0.28)	(0.13)	(0.29)
Net asset value, end of period	$37.53	$36.06	$37.29	$32.24	$28.81
Total Return ^(a)	5.10%	(2.34)%	16.54%	12.37%	42.17%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$407,197	$1,766,902	$2,559,671	$943,060	$737,449
Ratios to average net assets:
Ratio of total expenses to average net assets	0.63%	0.61%	0.63%	0.70%	0.72%
Ratio of net expenses to average net assets	0.63%	0.61%	0.63%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	0.79%	1.39%	0.91%	0.42%	1.20%
Portfolio turnover rate ^(b)	93%	103%	131%	100%	99%

(a)

Total return is calculated assuming an initial investment made at the net asset value at the beginning of the period, reinvestment of all distributions at net asset value during the period, and redemption at net asset value on the last day of the period. The returns presented do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. Total return is calculated for the time period presented and is not annualized for periods of less than a year. For some periods, the total returns would have been lower if certain fees had not been waived and expenses reimbursed by the investment advisor.

(b)

Portfolio turnover is calculated for the time period presented and is not annualized for periods of less than a year and does not include securities received or delivered from processing creations or redemptions and in-kind transactions.

175

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Consumer Staples AlphaDEX^® Fund (FXG)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$49.06	$45.69	$37.71	$33.22	$23.50
Income from investment operations:
Net investment income (loss)	0.56	0.76	0.72	0.51	0.35
Net realized and unrealized gain (loss)	(2.20)	3.38	7.95	4.51	9.85
Total from investment operations	(1.64)	4.14	8.67	5.02	10.20
Distributions paid to shareholders from:
Net investment income	(0.58)	(0.77)	(0.69)	(0.53)	(0.48)
Net asset value, end of period	$46.84	$49.06	$45.69	$37.71	$33.22
Total Return ^(a)	(3.31)%	9.19%	23.09%	15.14%	43.89%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$461,376	$2,558,300	$2,894,359	$1,059,728	$657,759
Ratios to average net assets:
Ratio of total expenses to average net assets	0.62%	0.61%	0.62%	0.69%	0.71%
Ratio of net expenses to average net assets	0.62%	0.61%	0.62%	0.69%	0.70%
Ratio of net investment income (loss) to average net assets	0.94%	1.60%	1.75%	1.59%	1.37%
Portfolio turnover rate ^(b)	100%	102%	87%	100%	107%

(a)

(b)

176

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Energy AlphaDEX^® Fund (FXN)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$14.54	$16.93	$28.07	$22.62	$18.51
Income from investment operations:
Net investment income (loss)	0.14	0.22	0.40	0.27	0.23
Net realized and unrealized gain (loss)	(0.85)	(2.37)	(11.14)	5.43	4.12
Total from investment operations	(0.71)	(2.15)	(10.74)	5.70	4.35
Distributions paid to shareholders from:
Net investment income	(0.17)	(0.24)	(0.40)	(0.25)	(0.24)
Net asset value, end of period	$13.66	$14.54	$16.93	$28.07	$22.62
Total Return ^(a)	(4.99)%	(12.67)%	(38.59)%	25.30%	23.62%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$249,296	$1,458,077	$346,292	$813,925	$191,135
Ratios to average net assets:
Ratio of total expenses to average net assets	0.63%	0.62%	0.64%	0.70%	0.74%
Ratio of net expenses to average net assets	0.63%	0.62%	0.64%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	1.03%	1.40%	1.68%	1.10%	0.82%
Portfolio turnover rate ^(b)	55%	112%	97%	72%	93%

(a)

(b)

177

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Financials AlphaDEX^® Fund (FXO)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$24.09	$24.43	$21.64	$19.79	$14.47
Income from investment operations:
Net investment income (loss)	0.44	0.39	0.30	0.33	0.32
Net realized and unrealized gain (loss)	5.30	(0.36)	2.79	1.83	5.32
Total from investment operations	5.74	0.03	3.09	2.16	5.64
Distributions paid to shareholders from:
Net investment income	(0.44)	(0.37)	(0.30)	(0.31)	(0.32)
Net asset value, end of period	$29.39	$24.09	$24.43	$21.64	$19.79
Total Return ^(a)	24.00%	0.22%	14.39%	10.95%	39.45%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$1,121,234	$710,692	$1,074,976	$904,448	$398,820
Ratios to average net assets:
Ratio of total expenses to average net assets	0.63%	0.64%	0.64%	0.69%	0.72%
Ratio of net expenses to average net assets	0.63%	0.64%	0.64%	0.69%	0.70%
Ratio of net investment income (loss) to average net assets	1.72%	1.72%	1.59%	1.61%	1.92%
Portfolio turnover rate ^(b)	80%	75%	80%	55%	65%

(a)

(b)

178

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Health Care AlphaDEX^® Fund (FXH)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$61.55	$69.63	$53.13	$42.58	$30.00
Income from investment operations:
Net investment income (loss)	(0.03)	0.00^(c)(d)	(0.05)	(0.01)	0.13
Net realized and unrealized gain (loss)	5.40	(8.08)	16.55	10.56	12.58
Total from investment operations	5.37	(8.08)	16.50	10.55	12.71
Distributions paid to shareholders from:
Net investment income	—	—	—	—	(0.13)
Net asset value, end of period	$66.92	$61.55	$69.63	$53.13	$42.58
Total Return ^(a)	8.72%	(11.60)%	31.06%	24.78%	42.49%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$1,067,382	$1,147,893	$4,233,585	$2,151,907	$981,566
Ratios to average net assets:
Ratio of total expenses to average net assets	0.62%	0.61%	0.62%	0.67%	0.71%
Ratio of net expenses to average net assets	0.62%	0.61%	0.62%	0.67%	0.70%
Ratio of net investment income (loss) to average net assets	(0.05)%	0.01%	(0.10)%	(0.01)%	0.36%
Portfolio turnover rate ^(b)	112%	118%	125%	81%	96%

(a)	Total return is calculated assuming an initial investment made at the net asset value at the beginning of the period, reinvestment of all distributions at net asset value during the period, and redemption at net asset value on the last day of the period. The returns presented do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. Total return is calculated for the time period presented and is not annualized for periods of less than a year. For some periods, the total returns would have been lower if certain fees had not been waived and expenses reimbursed by the investment advisor.
(b)	Portfolio turnover is calculated for the time period presented and is not annualized for periods of less than a year and does not include securities received or delivered from processing creations or redemptions and in-kind transactions.
(c)	Based on average shares outstanding.
(d)	Amount is less than $0.01.

179

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Industrials/Producer Durables AlphaDEX^® Fund (FXR)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$28.94	$29.46	$29.27	$24.11	$17.76
Income from investment operations:
Net investment income (loss)	0.17	0.24	0.13	0.24	0.32
Net realized and unrealized gain (loss)	6.42	(0.51)	0.26	5.16	6.34
Total from investment operations	6.59	(0.27)	0.39	5.40	6.66
Distributions paid to shareholders from:
Net investment income	(0.17)	(0.25)	(0.20)	(0.24)	(0.31)
Net asset value, end of period	$35.36	$28.94	$29.46	$29.27	$24.11
Total Return ^(a)	22.81%	(0.82)%	1.30%	22.44%	37.92%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$1,444,369	$159,169	$380,087	$881,038	$231,413
Ratios to average net assets:
Ratio of total expenses to average net assets	0.63%	0.66%	0.63%	0.69%	0.74%
Ratio of net expenses to average net assets	0.63%	0.66%	0.63%	0.69%	0.70%
Ratio of net investment income (loss) to average net assets	0.53%	0.93%	0.55%	0.99%	1.65%
Portfolio turnover rate ^(b)	101%	103%	105%	95%	110%

(a)

(b)

180

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Materials AlphaDEX^® Fund (FXZ)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$34.32	$30.68	$32.55	$27.93	$22.79
Income from investment operations:
Net investment income (loss)	0.48	0.41	0.47	0.35	0.57
Net realized and unrealized gain (loss)	4.30	3.65	(1.88)	4.60	5.17
Total from investment operations	4.78	4.06	(1.41)	4.95	5.74
Distributions paid to shareholders from:
Net investment income	(0.47)	(0.42)	(0.46)	(0.33)	(0.60)
Net asset value, end of period	$38.63	$34.32	$30.68	$32.55	$27.93
Total Return ^(a)	14.01%	13.48%	(4.36)%	17.73%	25.39%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$260,726	$250,558	$156,470	$706,424	$251,349
Ratios to average net assets:
Ratio of total expenses to average net assets	0.65%	0.66%	0.64%	0.70%	0.73%
Ratio of net expenses to average net assets	0.65%	0.66%	0.64%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	1.40%	1.26%	1.25%	1.16%	1.75%
Portfolio turnover rate ^(b)	84%	113%	104%	76%	82%

(a)

(b)

181

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Technology AlphaDEX^® Fund (FXL)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$34.84	$34.98	$31.74	$25.97	$20.97
Income from investment operations:
Net investment income (loss)	0.32	0.27	0.14	0.08	0.13
Net realized and unrealized gain (loss)	10.32	(0.14)	3.26	5.78	5.00
Total from investment operations	10.64	0.13	3.40	5.86	5.13
Distributions paid to shareholders from:
Net investment income	(0.36)	(0.27)	(0.16)	(0.09)	(0.13)
Net asset value, end of period	$45.12	$34.84	$34.98	$31.74	$25.97
Total Return ^(a)	30.72%	0.42%	10.72%	22.59%	24.54%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$607,101	$491,478	$900,971	$834,967	$284,543
Ratios to average net assets:
Ratio of total expenses to average net assets	0.63%	0.63%	0.63%	0.70%	0.72%
Ratio of net expenses to average net assets	0.63%	0.63%	0.63%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	0.82%	0.82%	0.53%	0.28%	0.53%
Portfolio turnover rate ^(b)	115%	109%	91%	85%	82%

(a)

(b)

182

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Sector Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Utilities AlphaDEX^® Fund (FXU)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$27.46	$23.06	$22.59	$20.56	$18.34
Income from investment operations:
Net investment income (loss)	0.76	0.73	0.83	0.59	0.64
Net realized and unrealized gain (loss)	0.19	4.38	0.47	2.04	2.22
Total from investment operations	0.95	5.11	1.30	2.63	2.86
Distributions paid to shareholders from:
Net investment income	(0.77)	(0.71)	(0.83)	(0.60)	(0.64)
Net asset value, end of period	$27.64	$27.46	$23.06	$22.59	$20.56
Total Return ^(a)	3.57%	22.66%	5.77%	13.08%	15.91%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$1,350,332	$1,831,298	$132,568	$634,851	$205,554
Ratios to average net assets:
Ratio of total expenses to average net assets	0.62%	0.62%	0.69%	0.70%	0.73%
Ratio of net expenses to average net assets	0.62%	0.62%	0.69%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	2.74%	2.79%	2.58%	2.31%	3.53%
Portfolio turnover rate ^(b)	57%	71%	94%	83%	74%

(a)

(b)

183

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Large Cap Core AlphaDEX^® Fund (FEX)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$46.93	$45.96	$43.21	$37.10	$28.66
Income from investment operations:
Net investment income (loss)	0.61	0.64	0.57	0.49	0.48
Net realized and unrealized gain (loss)	7.16	0.95	2.75	6.10	8.45
Total from investment operations	7.77	1.59	3.32	6.59	8.93
Distributions paid to shareholders from:
Net investment income	(0.63)	(0.62)	(0.57)	(0.48)	(0.49)
Net asset value, end of period	$54.07	$46.93	$45.96	$43.21	$37.10
Total Return ^(a)	16.68%	3.59%	7.67%	17.83%	31.41%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$1,554,447	$1,506,341	$1,932,424	$1,151,542	$500,829
Ratios to average net assets:
Ratio of total expenses to average net assets	0.61%	0.61%	0.61%	0.64%	0.66%
Ratio of net expenses to average net assets	0.61%	0.61%	0.61%	0.64%	0.66%
Ratio of net investment income (loss) to average net assets	1.21%	1.43%	1.25%	1.25%	1.47%
Portfolio turnover rate ^(b)	90%	109%	91%	78%	78%

(a)

(b)

184

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Large Cap Growth AlphaDEX^® Fund (FTC)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$51.56	$49.95	$42.86	$36.26	$28.54
Income from investment operations:
Net investment income (loss)	0.33	0.35	0.32	0.23	0.30
Net realized and unrealized gain (loss)	4.33	1.60	7.09	6.61	7.75
Total from investment operations	4.66	1.95	7.41	6.84	8.05
Distributions paid to shareholders from:
Net investment income	(0.34)	(0.34)	(0.32)	(0.24)	(0.33)
Net asset value, end of period	$55.88	$51.56	$49.95	$42.86	$36.26
Total Return ^(a)	9.10%	3.96%	17.32%	18.88%	28.42%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$650,949	$618,698	$681,765	$304,293	$170,419
Ratios to average net assets:
Ratio of total expenses to average net assets	0.62%	0.62%	0.63%	0.66%	0.70%
Ratio of net expenses to average net assets	0.62%	0.62%	0.63%	0.66%	0.70%
Ratio of net investment income (loss) to average net assets	0.63%	0.73%	0.68%	0.58%	0.88%
Portfolio turnover rate ^(b)	148%	149%	143%	138%	141%

(a)

(b)

185

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Large Cap Value AlphaDEX^® Fund (FTA)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$41.98	$41.61	$42.48	$36.78	$28.11
Income from investment operations:
Net investment income (loss)	0.77	0.78^(c)	0.77	0.69	0.58
Net realized and unrealized gain (loss)	8.96	0.38	(0.87)	5.69	8.66
Total from investment operations	9.73	1.16	(0.10)	6.38	9.24
Distributions paid to shareholders from:
Net investment income	(0.77)	(0.79)	(0.77)	(0.68)	(0.57)
Net asset value, end of period	$50.94	$41.98	$41.61	$42.48	$36.78
Total Return ^(a)	23.35%	2.94%	(0.29)%	17.46%	33.15%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$1,056,997	$831,256	$1,181,747	$1,021,608	$467,124
Ratios to average net assets:
Ratio of total expenses to average net assets	0.62%	0.62%	0.62%	0.64%	0.67%
Ratio of net expenses to average net assets	0.62%	0.62%	0.62%	0.64%	0.67%
Ratio of net investment income (loss) to average net assets	1.63%	2.00%	1.77%	1.80%	1.85%
Portfolio turnover rate ^(b)	72%	94%	78%	68%	69%

(a)	Total return is calculated assuming an initial investment made at the net asset value at the beginning of the period, reinvestment of all distributions at net asset value during the period, and redemption at net asset value on the last day of the period. The returns presented do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. Total return is calculated for the time period presented and is not annualized for periods of less than a year.
(b)	Portfolio turnover is calculated for the time period presented and is not annualized for periods of less than a year and does not include securities received or delivered from processing creations or redemptions and in-kind transactions.
(c)	Based on average shares outstanding.

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Mega Cap AlphaDEX^® Fund (FMK)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$27.09	$27.48	$26.23	$22.97	$18.00
Income from investment operations:
Net investment income (loss)	0.40	0.45	0.37	0.31	0.28
Net realized and unrealized gain (loss)	3.92	(0.42)	1.27	3.24	4.97
Total from investment operations	4.32	0.03	1.64	3.55	5.25
Distributions paid to shareholders from:
Net investment income	(0.42)	(0.42)	(0.39)	(0.29)	(0.28)
Net asset value, end of period	$30.99	$27.09	$27.48	$26.23	$22.97
Total Return ^(a)	16.10%	0.19%	6.29%	15.54%	29.42%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$15,496	$14,897	$17,864	$13,117	$10,335
Ratios to average net assets:
Ratio of total expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	1.38%	1.69%	1.40%	1.28%	1.32%
Portfolio turnover rate ^(b)	128%	145%	134%	125%	135%

(a)

(b)

187

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Mid Cap Core AlphaDEX^® Fund (FNX)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$52.80	$52.97	$50.65	$44.95	$34.19
Income from investment operations:
Net investment income (loss)	0.56	0.56	0.51	0.31	0.42
Net realized and unrealized gain (loss)	7.12	(0.21)	2.31	5.75	10.71
Total from investment operations	7.68	0.35	2.82	6.06	11.13
Distributions paid to shareholders from:
Net investment income	(0.57)	(0.52)	(0.50)	(0.36)	(0.37)
Net asset value, end of period	$59.91	$52.80	$52.97	$50.65	$44.95
Total Return ^(a)	14.61%	0.76%	5.55%	13.49%	32.71%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$697,995	$644,144	$1,016,952	$861,094	$485,456
Ratios to average net assets:
Ratio of total expenses to average net assets	0.63%	0.63%	0.62%	0.64%	0.66%
Ratio of net expenses to average net assets	0.63%	0.63%	0.62%	0.64%	0.66%
Ratio of net investment income (loss) to average net assets	1.00%	1.10%	0.97%	0.64%	1.04%
Portfolio turnover rate ^(b)	103%	126%	102%	81%	81%

(a)

(b)

188

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Mid Cap Growth AlphaDEX^® Fund (FNY)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$31.22	$31.31	$27.61	$24.62	$19.50
Income from investment operations:
Net investment income (loss)	0.15	0.11	0.13	0.07	0.18
Net realized and unrealized gain (loss)	3.87	(0.11)	3.71	3.00	5.07
Total from investment operations	4.02	0.00	3.84	3.07	5.25
Distributions paid to shareholders from:
Net investment income	(0.17)	(0.09)	(0.14)	(0.08)	(0.13)
Net asset value, end of period	$35.07	$31.22	$31.31	$27.61	$24.62
Total Return ^(a)	12.94%	0.03%	13.91%	12.49%	27.05%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$94,700	$82,725	$114,273	$41,422	$22,161
Ratios to average net assets:
Ratio of total expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	0.48%	0.35%	0.42%	0.08%	0.83%
Portfolio turnover rate ^(b)	153%	193%	159%	148%	156%

(a)

(b)

189

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Mid Cap Value AlphaDEX^® Fund (FNK)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$29.47	$29.56	$30.20	$26.63	$19.74
Income from investment operations:
Net investment income (loss)	0.44	0.43	0.39	0.24	0.25
Net realized and unrealized gain (loss)	4.17	(0.10)	(0.64)	3.56	6.89
Total from investment operations	4.61	0.33	(0.25)	3.80	7.14
Distributions paid to shareholders from:
Net investment income	(0.43)	(0.42)	(0.39)	(0.23)	(0.25)
Net asset value, end of period	$33.65	$29.47	$29.56	$30.20	$26.63
Total Return ^(a)	15.72%	1.22%	(0.87)%	14.30%	36.37%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$57,201	$47,156	$75,389	$101,173	$21,302
Ratios to average net assets:
Ratio of total expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	1.31%	1.49%	1.27%	0.90%	0.96%
Portfolio turnover rate ^(b)	95%	114%	88%	84%	66%

(a)

(b)	Portfolio turnover is calculated for the time period presented and is not annualized for periods of less than a year and does not include securities received or delivered from processing creations or redemptions and in-kind transactions.

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Multi Cap Growth AlphaDEX^® Fund (FAD)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$53.31	$52.16	$45.23	$39.59	$31.16
Income from investment operations:
Net investment income (loss)	0.25	0.24	0.23	0.12	0.26
Net realized and unrealized gain (loss)	6.04	1.13	6.94	5.67	8.42
Total from investment operations	6.29	1.37	7.17	5.79	8.68
Distributions paid to shareholders from:
Net investment income	(0.27)	(0.22)	(0.24)	(0.15)	(0.25)
Net asset value, end of period	$59.33	$53.31	$52.16	$45.23	$39.59
Total Return ^(a)	11.85%	2.66%	15.89%	14.63%	28.01%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$103,829	$85,293	$91,279	$61,062	$37,609
Ratios to average net assets:
Ratio of total expenses to average net assets	0.70%	0.70%	0.72%	0.74%	0.85%
Ratio of net expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	0.44%	0.50%	0.48%	0.27%	0.74%
Portfolio turnover rate ^(b)	142%	160%	135%	139%	147%

(a)

(b)

191

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Multi Cap Value AlphaDEX^® Fund (FAB)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$44.91	$44.75	$45.71	$40.10	$29.93
Income from investment operations:
Net investment income (loss)	0.73	0.70	0.64	0.55	0.51
Net realized and unrealized gain (loss)	7.96	0.13	(0.96)	5.60	10.16
Total from investment operations	8.69	0.83	(0.32)	6.15	10.67
Distributions paid to shareholders from:
Net investment income	(0.76)	(0.67)	(0.64)	(0.54)	(0.50)
Net asset value, end of period	$52.84	$44.91	$44.75	$45.71	$40.10
Total Return ^(a)	19.46%	1.98%	(0.74)%	15.38%	35.92%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$110,959	$103,296	$196,887	$175,986	$92,227
Ratios to average net assets:
Ratio of total expenses to average net assets	0.66%	0.68%	0.70%	0.70%	0.76%
Ratio of net expenses to average net assets	0.66%	0.68%	0.70%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	1.45%	1.61%	1.36%	1.29%	1.46%
Portfolio turnover rate ^(b)	81%	96%	82%	74%	70%

(a)

(b)	Portfolio turnover is calculated for the time period presented and is not annualized for periods of less than a year and does not include securities received or delivered from processing creations or redemptions and in-kind transactions.

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Small Cap Core AlphaDEX^® Fund (FYX)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$48.91	$48.24	$46.07	$42.20	$31.20
Income from investment operations:
Net investment income (loss)	0.41	0.39	0.35	0.22	0.34
Net realized and unrealized gain (loss)	7.40	0.64	2.17	3.86	11.00
Total from investment operations	7.81	1.03	2.52	4.08	11.34
Distributions paid to shareholders from:
Net investment income	(0.49)	(0.36)	(0.35)	(0.21)	(0.34)
Net asset value, end of period	$56.23	$48.91	$48.24	$46.07	$42.20
Total Return ^(a)	16.03%	2.20%	5.45%	9.66%	36.58%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$491,997	$442,627	$701,882	$520,550	$289,082
Ratios to average net assets:
Ratio of total expenses to average net assets	0.63%	0.64%	0.63%	0.66%	0.70%
Ratio of net expenses to average net assets	0.63%	0.64%	0.63%	0.66%	0.70%
Ratio of net investment income (loss) to average net assets	0.78%	0.86%	0.73%	0.49%	0.87%
Portfolio turnover rate ^(b)	111%	126%	97%	89%	85%

(a)

(b)

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First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Small Cap Growth AlphaDEX^® Fund (FYC)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$33.24	$32.18	$27.96	$26.01	$20.37
Income from investment operations:
Net investment income (loss)	0.05	0.09	0.04	(0.01)	0.05
Net realized and unrealized gain (loss)	5.63	1.04	4.20	1.97	5.66
Total from investment operations	5.68	1.13	4.24	1.96	5.71
Distributions paid to shareholders from:
Net investment income	(0.09)	(0.07)	(0.02)	(0.01)	(0.07)
Net asset value, end of period	$38.83	$33.24	$32.18	$27.96	$26.01
Total Return ^(a)	17.12%	3.54%	15.17%	7.52%	28.14%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$116,483	$56,502	$88,492	$33,557	$13,007
Ratios to average net assets:
Ratio of total expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	0.12%	0.32%	0.09%	(0.10)%	0.17%
Portfolio turnover rate ^(b)	162%	161%	153%	175%	147%

(a)

(b)

194

Table of Contents

First Trust Exchange-Traded AlphaDEX^® Fund
Style Funds

Financial Highlights
For a share outstanding throughout each period

First Trust Small Cap Value AlphaDEX^® Fund (FYT)

	Year Ended July 31,
	2017	2016	2015	2014	2013
Net asset value, beginning of period	$30.19	$30.20	$31.06	$27.96	$19.81
Income from investment operations:
Net investment income (loss)	0.41	0.26	0.28	0.23	0.20
Net realized and unrealized gain (loss)	4.23	(0.04)	(0.85)	3.09	8.15
Total from investment operations	4.64	0.22	(0.57)	3.32	8.35
Distributions paid to shareholders from:
Net investment income	(0.50)	(0.23)	(0.29)	(0.22)	(0.20)
Net asset value, end of period	$34.33	$30.19	$30.20	$31.06	$27.96
Total Return ^(a)	15.41%	0.79%	(1.89)%	11.86%	42.34%
Ratios/supplemental data:
Net assets, end of period (in 000’s)	$61,802	$54,341	$72,491	$62,110	$44,743
Ratios to average net assets:
Ratio of total expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net expenses to average net assets	0.70%	0.70%	0.70%	0.70%	0.70%
Ratio of net investment income (loss) to average net assets	1.22%	0.89%	0.86%	0.72%	1.32%
Portfolio turnover rate ^(b)	110%	125%	96%	86%	104%

(a)

(b)

Other Information

Continuous Offering

Each Fund will issue, on a continuous offering basis, its shares in one or more groups of a fixed number of Fund shares (each such group of such specified number of individual Fund shares, a “Creation Unit Aggregation”). The method by which Creation Unit Aggregations of Fund shares are created and traded may raise certain issues under applicable securities laws. Because new Creation Unit Aggregations of shares are issued and sold by a Fund on an ongoing basis, a “distribution,” as such term is used in the Securities Act, may occur at any point. Broker-dealers and other persons are cautioned that some activities on their part may, depending on the circumstances, result in their being deemed participants in a distribution in a manner which could render them statutory underwriters and subject them to the prospectus delivery requirement and liability provisions of the Securities Act.

For example, a broker-dealer firm or its client may be deemed a statutory underwriter if it takes Creation Unit Aggregations after placing an order with FTP, breaks them down into constituent shares and sells such shares directly to customers, or if it chooses to couple the creation of a supply of new shares with an active selling effort involving solicitation of secondary market demand for shares. A determination of whether one is an underwriter for purposes of the Securities Act must take into account all the facts and circumstances pertaining to the activities of the broker-dealer or its client in the particular case, and the examples mentioned above should not be considered a complete description of all the activities that could lead to a characterization as an underwriter.

Broker-dealer firms should also note that dealers who are not “underwriters” but are effecting transactions in shares, whether or not participating in the distribution of shares, are generally required to deliver a prospectus. This is because the prospectus

195

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delivery exemption in Section 4(a)(3) of the Securities Act is not available in respect of such transactions as a result of Section 24(d) of the 1940 Act. The Trust, on behalf of each Fund, however, has received from the Securities and Exchange Commission an exemption from the prospectus delivery obligation in ordinary secondary market transactions under certain circumstances, on the condition that purchasers are provided with a product description of the shares. As a result, broker-dealer firms should note that dealers who are not underwriters but are participating in a distribution (as contrasted with ordinary secondary market transactions) and thus dealing with the shares that are part of an overallotment within the meaning of Section 4(a)(3)(C) of the Securities Act would be unable to take advantage of the prospectus delivery exemption provided by Section 4(a)(3) of the Securities Act. Firms that incur a prospectus delivery obligation with respect to shares are reminded that, under the Securities Act Rule 153, a prospectus delivery obligation under Section 5(b)(2) of the Securities Act owed to a broker-dealer in connection with a sale on the applicable Exchange is satisfied by the fact that the prospectus is available from the applicable Exchange upon request. The prospectus delivery mechanism provided in Rule 153 is available with respect to transactions on a national securities exchange, a trading facility or an alternative trading system.

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Table of Contents

First Trust
Exchange-Traded AlphaDEX® Fund

ALPHADEX^® SECTOR FUNDS

First Trust Consumer Discretionary AlphaDEX^® Fund
First Trust Consumer Staples AlphaDEX^® Fund
First Trust Energy AlphaDEX^® Fund

First Trust Financials AlphaDEX^® Fund

First Trust Health Care AlphaDEX^® Fund

First Trust Industrials/Producer Durables AlphaDEX^® Fund
First Trust Materials AlphaDEX^® Fund
First Trust Technology AlphaDEX^®

Fund First Trust Utilities AlphaDEX^® Fund

ALPHADEX^® STYLE FUNDS

First Trust Large Cap Core AlphaDEX^® Fund

First Trust Large Cap Growth AlphaDEX^® Fund

First Trust Large Cap Value AlphaDEX^® Fund

First Trust Mega Cap AlphaDEX^® Fund

First Trust Mid Cap Core AlphaDEX^® Fund

First Trust Mid Cap Growth AlphaDEX^® Fund

First Trust Mid Cap Value AlphaDEX^® Fund

First Trust Multi Cap Growth AlphaDEX^® Fund

First Trust Multi Cap Value AlphaDEX^® Fund

First Trust Small Cap Core AlphaDEX^® Fund

First Trust Small Cap Growth AlphaDEX^® Fund

First Trust Small Cap Value AlphaDEX^® Fund

For More Information

For more detailed information on the Funds, several additional sources of information are available to you. The SAI, incorporated by reference into this prospectus, contains detailed information on the Funds' policies and operation. Additional information about the Funds' investments is available in the annual and semi-annual reports to shareholders. In the Funds' annual reports, you will find a discussion of the market conditions and investment strategies that significantly impacted the Funds' performance during the last fiscal year. The Funds' most recent SAI, annual and semi-annual reports and certain other information are available free of charge by calling the Funds at (800) 621-1675, on the Funds' website at www.ftportfolios.com or through your financial advisor. Shareholders may call the toll-free number above with any inquiries.

You may obtain this and other information regarding the Funds, including the SAI and the Codes of Ethics adopted by First Trust, FTP and the Trust, directly from the Securities and Exchange Commission (the “SEC”). Information on the SEC’s website is free of charge. Visit the SEC’s online EDGAR database at http://www.sec.gov or in person at the SEC’s Public Reference Room in Washington, D.C., or call the SEC at (202) 551-8090 for information on the Public Reference Room. You may also request information regarding the Funds by sending a request (along with a duplication fee) to the SEC’s Public Reference Section, 100 F Street, N.E., Washington, D.C. 20549-1520 or by sending an electronic request to publicinfo@sec.gov.

First Trust Advisors L.P.
120 East Liberty Drive, Suite 400
Wheaton, Illinois 60187
(800) 621-1675
www.ftportfolios.com

SEC File #: 333-140895

811-22019

STATEMENT OF ADDITIONAL INFORMATION

Investment Company Act File No. 811-22019

First Trust Exchange-Traded AlphaDEX^® Fund

FUND NAME	TICKER SYMBOL	EXCHANGE
ALPHADEX^® SECTOR FUNDS
First Trust Consumer Discretionary AlphaDEX^® Fund	FXD	NYSE Arca
First Trust Consumer Staples AlphaDEX^® Fund	FXG	NYSE Arca
First Trust Energy AlphaDEX^® Fund	FXN	NYSE Arca
First Trust Financials AlphaDEX^® Fund	FXO	NYSE Arca
First Trust Health Care AlphaDEX^® Fund	FXH	NYSE Arca
First Trust Industrials/Producer Durables AlphaDEX^® Fund	FXR	NYSE Arca
First Trust Materials AlphaDEX^® Fund	FXZ	NYSE Arca
First Trust Technology AlphaDEX^® Fund	FXL	NYSE Arca
First Trust Utilities AlphaDEX^® Fund	FXU	NYSE Arca
ALPHADEX^® STYLE FUNDS
First Trust Large Cap Core AlphaDEX^® Fund	FEX	Nasdaq
First Trust Large Cap Growth AlphaDEX^® Fund	FTC	Nasdaq
First Trust Large Cap Value AlphaDEX^® Fund	FTA	Nasdaq
First Trust Mega Cap AlphaDEX^® Fund	FMK	Nasdaq
First Trust Mid Cap Core AlphaDEX^® Fund	FNX	Nasdaq
First Trust Mid Cap Growth AlphaDEX^® Fund	FNY	Nasdaq
First Trust Mid Cap Value AlphaDEX^® Fund	FNK	Nasdaq
First Trust Multi Cap Growth AlphaDEX^® Fund	FAD	Nasdaq
First Trust Multi Cap Value AlphaDEX^® Fund	FAB	Nasdaq
First Trust Small Cap Core AlphaDEX^® Fund	FYX	Nasdaq
First Trust Small Cap Growth AlphaDEX^® Fund	FYC	Nasdaq
First Trust Small Cap Value AlphaDEX^® Fund	FYT	Nasdaq

DATED DECEMBER 1, 2017

This Statement of Additional Information (“SAI”) is not a prospectus. It should be read in conjunction with the prospectus dated December 1, 2017, as it may be revised from time to time (the “Prospectus”), for each of the First Trust Consumer Discretionary AlphaDEX^® Fund, First Trust Consumer Staples AlphaDEX^® Fund, First Trust Energy AlphaDEX^® Fund, First Trust Financials AlphaDEX^® Fund, First Trust Health Care AlphaDEX^® Fund, First Trust Industrials/Producer Durables AlphaDEX^® Fund, First Trust Materials AlphaDEX^® Fund, First Trust Technology AlphaDEX^® Fund, First Trust Utilities AlphaDEX^® Fund, First Trust Large Cap Core AlphaDEX^® Fund, First Trust Large Cap Growth AlphaDEX^® Fund, First Trust Large Cap Value AlphaDEX^® Fund, First Trust Mega Cap AlphaDEX^® Fund, First Trust Mid Cap Core AlphaDEX^® Fund, First Trust Mid Cap Growth AlphaDEX^® Fund, First Trust Mid Cap Value AlphaDEX^® Fund, First Trust Multi Cap Growth AlphaDEX^® Fund, First Trust Multi Cap Value AlphaDEX^® Fund, First Trust Small Cap Core AlphaDEX^® Fund, First Trust Small Cap Growth AlphaDEX^® Fund and First Trust Small Cap Value AlphaDEX^® Fund (each, a “Fund” and collectively, the “Funds”), each a series of the First Trust Exchange-Traded AlphaDEX^® Fund (the “Trust”). Capitalized terms used herein that are not defined have the same meaning as in the Prospectus, unless otherwise noted. A copy of the Prospectus may be obtained without charge by writing to the Trust’s distributor, First Trust Portfolios L.P., 120 East Liberty Drive, Suite 400, Wheaton, Illinois 60187, or by calling toll free at (800) 621-1675.

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General Description of the Trust and the Funds	1
Exchange Listing and Trading	3
Investment Objectives and Policies	3
Investment Strategies	4
Sublicense Agreements	8
Investment Risks	8
Management of the Funds	10
Accounts Managed by Investment Committee	20
Brokerage Allocations	20
Custodian, Distributor, Transfer Agent, Fund Accounting Agent, Index Providers and Exchanges	22
Additional Payments to Financial Intermediaries	26
Additional Information	27
Proxy Voting Policies and Procedures	31
Creation and Redemption of Creation Unit Aggregations	31
Federal Tax Matters	38
Determination of Net Asset Value	43
Dividends and Distributions	45
Miscellaneous Information	45
Financial Statements	45
Exhibit A—Principal Holders Table	A-1
Exhibit B—Proxy Voting Guidelines	B-1

The audited financial statements for the Funds' most recent fiscal year appear in the Funds' Annual Reports to Shareholders dated July 31, 2017, which were filed with the Securities and Exchange Commission (the “SEC”) on October 10, 2017. The financial statements from the Annual Reports are incorporated herein by reference. The Annual Reports are available without charge by calling (800) 621-1675 or by visiting the SEC’s website at http://www.sec.gov.

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General Description of the Trust and the Funds

The Trust was organized as a Massachusetts business trust on December 6, 2006 and is authorized to issue an unlimited number of shares in one or more series. The Trust is an open-end management investment company, registered under the Investment Company Act of 1940, as amended (the “1940 Act”). The Trust currently offers shares in 21 series: First Trust Consumer Discretionary AlphaDEX^® Fund, First Trust Consumer Staples AlphaDEX^® Fund, First Trust Energy AlphaDEX^® Fund, First Trust Financials AlphaDEX^® Fund, First Trust Health Care AlphaDEX^® Fund, First Trust Industrials/Producer Durables AlphaDEX^® Fund, First Trust Materials AlphaDEX^® Fund, First Trust Technology AlphaDEX^® Fund and First Trust Utilities AlphaDEX^® Fund (collectively, the “AlphaDEX^® Sector Funds”), and First Trust Large Cap Core AlphaDEX^® Fund, First Trust Large Cap Growth AlphaDEX^® Fund, First Trust Large Cap Value AlphaDEX^® Fund, First Trust Mega Cap AlphaDEX^® Fund, First Trust Mid Cap Core AlphaDEX^® Fund, First Trust Mid Cap Growth AlphaDEX^® Fund, First Trust Mid Cap Value AlphaDEX^® Fund, First Trust Multi Cap Growth AlphaDEX^® Fund, First Trust Multi Cap Value AlphaDEX^® Fund, First Trust Small Cap Core AlphaDEX^® Fund, First Trust Small Cap Growth AlphaDEX^® Fund and First Trust Small Cap Value AlphaDEX^® Fund (collectively, the “AlphaDEX^® Style Funds”), each of which is a diversified series, except for First Trust Consumer Staples AlphaDEX^® Fund, which is a non-diversified series.

This SAI relates to the Funds. Each Fund, as a series of the Trust, represents a beneficial interest in a separate portfolio of securities and other assets, with its own objective and policies.

The Board of Trustees of the Trust (the “Board of Trustees” or the “Trustees”) has the right to establish additional series in the future, to determine the preferences, voting powers, rights and privileges thereof and to modify such preferences, voting powers, rights and privileges without shareholder approval. Shares of any series may also be divided into one or more classes at the discretion of the Trustees.

The Trust or any series or class thereof may be terminated at any time by the Board of Trustees upon written notice to the shareholders.

Each share has one vote with respect to matters upon which a shareholder vote is required, consistent with the requirements of the 1940 Act and the rules promulgated thereunder. Shares of all series of the Trust vote together as a single class except as otherwise required by the 1940 Act or if the matter being voted on affects only a particular series, and, if a matter affects a particular series differently from other series, the shares of that series will vote separately on such matter. The Trust’s Declaration of Trust (the “Declaration”) requires a shareholder vote only on those matters where the 1940 Act requires a vote of shareholders and otherwise permits the Trustees to take actions without seeking the consent of shareholders. For example, the Declaration gives the Trustees broad authority to approve reorganizations between a Fund and another entity, such as another exchange-traded fund, or the sale of all or substantially all of a Fund's assets, or the termination of the Trust or any Fund without shareholder approval if the 1940 Act would not require such approval.

The Declaration provides that by becoming a shareholder of a Fund, each shareholder shall be expressly held to have agreed to be bound by the provisions of the Declaration and to any By-laws adopted by the Trust. The Declaration provides that, except as set forth therein and authorized by the Trustees, shareholders have no rights, privileges, claims or remedies under any contractor agreement entered into by the Trust or the Fund with any service provider or other agent to or contractor with the Trust or the Fund including, without limitation, any third party beneficiary rights.

The Declaration may, except in limited circumstances, be amended by the Trustees in any respect without a shareholder vote. The Declaration provides that the Trustees may establish the number of Trustees and that vacancies on the Board of Trustees may be filled by the remaining Trustees, except when election of Trustees by the shareholders is required under the 1940 Act. Trustees are then elected by a plurality of votes cast by shareholders at a meeting at which a quorum is present. The Declaration also provides that Trustees may be removed, with or without cause, by a vote of shareholders holding at least two-thirds of the voting power of the Trust, or by a vote of two-thirds of the remaining Trustees. The provisions of the Declaration relating to the election and removal of Trustees may not be amended without the approval of two-thirds of the Trustees.

The holders of Fund shares are required to disclose information on direct or indirect ownership of Fund shares as may be required to comply with various laws applicable to the Funds or as the Trustees may determine, and ownership of Fund shares may be disclosed by the Funds if so required by law or regulation. In addition, pursuant to the Declaration, the Trustees may, in their discretion, require the Trust to redeem shares held by any shareholder for any reason under terms set by the Trustees.

The Declaration provides a detailed process for the bringing of derivative actions by shareholders in order to permit legitimate inquiries and claims while avoiding the time, expense, distraction and other harm that can be caused to a Fund or

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its shareholders as a result of spurious shareholder demands and derivative actions. In addition, the Declaration provides that actions that are derivative in nature may not be brought directly. Prior to bringing a derivative action, a demand must first be made on the Trustees. The Declaration details various information, certifications, undertakings and acknowledgements that must be included in the demand. Following receipt of the demand, the Trustees have a period of 90 days, which may be extended by an additional 60 days, to consider the demand. If a majority of the Trustees who are considered independent for the purposes of considering the demand determine that maintaining the suit would not be in the best interests of a Fund, the Trustees are required to reject the demand and the complaining shareholder may not proceed with the derivative action unless the shareholder is able to sustain the burden of proof to a court that the decision of the Trustees not to pursue the requested action was not a good faith exercise of their business judgment on behalf of a Fund. In making such a determination, a Trustee is not considered to have a personal financial interest by virtue of being compensated for his or her services as a Trustee. If a demand is rejected, the complaining shareholder will be responsible for the costs and expenses (including attorneys’ fees) incurred by a Fund in connection with the consideration of the demand under a number of circumstances. In addition, if a court determines that a derivative action was made without reasonable cause or for an improper purpose, or if a derivative or direct action is dismissed on the basis of a failure to comply with the procedural provisions relating to shareholder actions as set forth in the Declaration, or if a direct action is dismissed by a court for failure to state a claim, the shareholder bringing the action may be responsible for a Fund's costs, including attorneys’ fees.

The provisions of the Declaration provide that any direct or derivative action commenced by a shareholder must be brought only in the U.S. District Court for the District of Massachusetts (Boston Division) or if any such action may not be brought in that court, then in the Business Litigation Session of Suffolk Superior Court in Massachusetts (the “Chosen Courts”). Except as prohibited by applicable law, if a shareholder commences an applicable action in a court other than a Chosen Court without the consent of a Fund, then such shareholder may be obligated to reimburse a Fund and any applicable Trustee or officer of the Fund made party to such proceeding for the costs and expenses (including attorneys’ fees) incurred in connection with any successful motion to dismiss, stay or transfer of the action. The Declaration also provides that any shareholder bringing an action against a Fund waives the right to trial by jury to the fullest extent permitted by law.

The Trust is not required to and does not intend to hold annual meetings of shareholders.

Under Massachusetts law applicable to Massachusetts business trusts, shareholders of such a trust may, under certain circumstances, be held personally liable as partners for its obligations. However, the Declaration contains an express disclaimer of shareholder liability for acts or obligations of the Trust and requires that notice of this disclaimer be given in each agreement, obligation or instrument entered into or executed by the Trust or the Trustees. The Declaration further provides for indemnification out of the assets and property of the Trust for all losses and expenses of any shareholder held personally liable for the obligations of the Trust. Thus, the risk of a shareholder incurring financial loss on account of shareholder liability is limited to circumstances in which both inadequate insurance existed and the Trust or a Fund itself was unable to meet its obligations.

The Declaration further provides that a Trustee acting in his or her capacity as Trustee is not personally liable to any person other than the Trust for any act, omission, or obligation of the Trust. The Declaration requires the Trust to indemnify any persons who are or who have been Trustees, officers or employees of the Trust for any liability for actions or failure to act except to the extent prohibited by applicable federal law. In making any determination as to whether any person is entitled to the advancement of expenses in connection with a claim for which indemnification is sought, such person is entitled to a rebuttable presumption that he or she did not engage in conduct for which indemnification is not available. The Declaration provides that any Trustee who serves as chair of the Board of Trustees or of a committee of the Board of Trustees, as lead independent Trustee or as audit committee financial expert, or in any other similar capacity, will not be subject to any greater standard of care or liability because of such position.

The Declaration further provides that no provision of the Declaration will restrict any shareholder rights expressly granted by the Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as amended or the 1940 Act, or any rule, regulation or order of the Securities Exchange Commission thereunder.

The Funds are advised by First Trust Advisors L.P. (the “Advisor” or “First Trust”).

The shares of each Fund list and principally trade on NYSE Arca, Inc., (“NYSE Arca”) or The Nasdaq Stock Market LLC (“Nasdaq"), (each an “Exchange”), as shown on the cover of this SAI. The shares will trade on NYSE Arca or Nasdaq at market prices that may be below, at or above net asset value. Each Fund offers and issues shares at net asset value only in aggregations of a specified number of shares (each a “Creation Unit” or a “Creation Unit Aggregation”), generally in exchange for a basket of securities (the “Deposit Securities”) included in each Fund’s corresponding Index (as hereinafter defined), together with the deposit of a specified cash payment (the “Cash Component”). Shares are redeemable only in Creation Unit Aggregations

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and, generally, in exchange for portfolio securities and a specified cash payment. Shares are redeemable only in Creation Unit Aggregations and, generally, in exchange for portfolio securities and a specified cash payment. Creation Units are aggregations of 50,000 shares of a Fund.

The Trust reserves the right to permit creations and redemptions of Fund shares to be made in whole or in part on a cash basis under certain circumstances. Fund shares may be issued in advance of receipt of Deposit Securities subject to various conditions including a requirement to maintain on deposit with the applicable Fund cash at least equal to 115% of the market value of the missing Deposit Securities. See the section entitled “Creation and Redemption of Creation Unit Aggregations.” In each instance of such cash creations or redemptions, transaction fees may be imposed that will be higher than the transaction fees associated with in-kind creations or redemptions. In all cases, such fees will be limited in accordance with the requirements of the SEC applicable to management investment companies offering redeemable securities.

Exchange Listing and Trading

There can be no assurance that the requirements of NYSE Arca or Nasdaq necessary to maintain the listing of shares of a Fund will continue to be met. NYSE Arca or Nasdaq may, but are not required to, remove the shares of a Fund from listing if (i) following the initial 12-month period beginning at the commencement of trading of a Fund, there are fewer than 50 beneficial owners of the shares of such Fund for 30 or more consecutive trading days; (ii) the value of such Fund’s Index (as defined below) is no longer calculated or available; or (iii) such other event shall occur or condition exist that, in the opinion of NYSE Arca or Nasdaq, makes further dealings on NYSE Arca or Nasdaq inadvisable. Please note that NYSE Arca may have a conflict of interest with respect to the AlphaDEX^® Sector Funds because the shares of such Funds are listed on NYSE Arca and NYSE Arca is an affiliate of ICE Data Indices, LLC (“IDI” or an “Index Provider”), the Index Provider of the AlphaDEX^® Sector Funds. Additionally, Nasdaq may have a conflict of interest with respect to the AlphaDEX^® Style Funds because the shares of such Funds are listed on Nasdaq and Nasdaq, Inc. (an "Index Provider," and with IDI, the "Index Providers"), an affiliate of Nasdaq, is the Index Provider of the AlphaDEX^® Style Funds. NYSE Arca or Nasdaq will remove the shares of a Fund from listing and trading upon termination of such Fund.

As in the case of other stocks traded on NYSE Arca or Nasdaq, brokers’ commissions on transactions will be based on negotiated commission rates at customary levels.

The Funds reserve the right to adjust the price levels of shares in the future to help maintain convenient trading ranges for investors. Any adjustments would be accomplished through stock splits or reverse stock splits, which would have no effect on the net assets of each Fund.

Each Fund is required by its Exchange to comply with certain listing standards (which includes certain investment parameters) in order to maintain its listing on the Exchange. Compliance with these listing standards may compel a Fund to sell securities at an inopportune time or for a price other than the security’s then-current market value. The sale of securities in such circumstances could limit a Fund’s profit or require the Fund to incur a loss, and as a result, a Fund’s performance could be impacted.

Investment Objectives and Policies

The Prospectus describes the investment objectives and certain policies of the Funds. The following supplements the information contained in the Prospectus concerning the investment objectives and policies of the Funds.

Each Fund is subject to the following fundamental policies, which may not be changed without approval of the holders of a majority of the outstanding voting securities (as such term is defined in the 1940 Act) of a Fund:

(1)	A Fund may not issue senior securities, except as permitted under the 1940 Act.

(2)

A Fund may not borrow money, except that a Fund may (i) borrow money from banks for temporary or emergency purposes (but not for leverage or the purchase of investments) and (ii) engage in other transactions permissible under the 1940 Act that may involve a borrowing (such as obtaining short-term credits as are necessary for the clearance of transactions, engaging in delayed-delivery transactions, or purchasing certain futures, forward contracts and options), provided that the combination of (i) and (ii) shall not exceed 33⅓% of the value of a Fund’s total assets (including the amount borrowed), less a Fund’s liabilities (other than borrowings).

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(3)	A Fund will not underwrite the securities of other issuers except to the extent a Fund may be considered an underwriter under the Securities Act of 1933, as amended (the “1933 Act”), in connection with the purchase and sale of portfolio securities.
(4)	A Fund will not purchase or sell real estate or interests therein, unless acquired as a result of ownership of securities or other instruments (but this shall not prohibit a Fund from purchasing or selling securities or other instruments backed by real estate or of issuers engaged in real estate activities).
(5)	A Fund may not make loans to other persons, except through (i) the purchase of debt securities permissible under a Fund's investment policies, (ii) repurchase agreements, or (iii) the lending of portfolio securities, provided that no such loan of portfolio securities may be made by a Fund if, as a result, the aggregate of such loans would exceed 33⅓% of the value of a Fund's total assets.
(6)	A Fund may not purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments (but this shall not prevent a Fund from purchasing or selling options, futures contracts, forward contracts or other derivative instruments, or from investing in securities or other instruments backed by physical commodities).
(7)	A Fund may not invest 25% or more of the value of its total assets in securities of issuers in any one industry or group of industries, except to the extent that the Fund’s Index is based on concentrations in an industry or a group of industries This restriction does not apply to obligations issued or guaranteed by the U.S. government, its agencies or instrumentalities.

For purposes of applying restriction (1) above, under the 1940 Act as currently in effect, the Funds are not permitted to issue senior securities, except that a Fund may borrow from any bank if immediately after such borrowing the value of such Fund’s total assets is at least 300% of the principal amount of all of a Fund's borrowings (i.e., the principal amount of the borrowings may not exceed 33⅓% of a Fund's total assets). In the event that such asset coverage shall at any time fall below 300% the applicable Fund shall, within three days thereafter (not including Sundays and holidays), reduce the amount of its borrowings to an extent that the asset coverage of such borrowings shall be at least 300%.

Except for restriction (2) above, if a percentage restriction is adhered to at the time of investment, a later increase in percentage resulting from a change in market value of the investment or the total assets will not constitute a violation of that restriction. With respect to restriction (2), if the limitations are exceeded as a result of a change in market value then the Fund will reduce the amount of borrowings within three days thereafter to the extent necessary to comply with the limitations (not including Sundays and holidays).

The fundamental investment limitations set forth above limit the Funds' ability to engage in certain investment practices and purchase securities or other instruments to the extent permitted by, or consistent with, applicable law. As such, these limitations will change as the statute, rules, regulations or orders (or, if applicable, interpretations) change, and no shareholder vote will be required or sought.

The foregoing fundamental policies of each Fund may not be changed without the affirmative vote of the majority of the outstanding voting securities of the respective Fund. The 1940 Act defines a majority vote as the vote of the lesser of (i) 67% or more of the voting securities represented at a meeting at which more than 50% of the outstanding securities are represented; or (ii) more than 50% of the outstanding voting securities. With respect to the submission of a change in an investment policy to the holders of outstanding voting securities of a Fund, such matter shall be deemed to have been effectively acted upon with respect to a Fund if a majority of the outstanding voting securities of a Fund vote for the approval of such matter, notwithstanding that such matter has not been approved by the holders of a majority of the outstanding voting securities of any other series of the Trust affected by such matter.

In addition to the foregoing fundamental policies, the Funds are also subject to strategies and policies discussed herein which, unless otherwise noted, are non-fundamental restrictions and policies and may be changed by the Board of Trustees.

Investment Strategies

Under normal circumstances, each Fund will invest at least 90% of its net assets (plus any investment borrowings) in common stocks that comprise such Fund’s corresponding index as set forth below (each, an “Index” and collectively, the “Indices”). Fund shareholders are entitled to 60 days’ notice prior to any change in this non-fundamental investment policy.

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The Indices in the following table (the “StrataQuant^® Series”) are a family of custom “enhanced” indices developed, maintained and sponsored by IDI and licensed to First Trust Portfolios L.P. (“FTP” or the “Distributor”) by IDI. IDI is a successor-in-interest to previous entities that maintained the Index in NYSE Group, Inc. and American Stock Exchange LLC.

Fund	Index
First Trust Consumer Discretionary AlphaDEX^® Fund	StrataQuant^® Consumer Discretionary Index
First Trust Consumer Staples AlphaDEX^® Fund	StrataQuant^® Consumer Staples Index
First Trust Energy AlphaDEX^® Fund	StrataQuant^® Energy Index
First Trust Financials AlphaDEX^® Fund	StrataQuant^® Financials Index
First Trust Health Care AlphaDEX^® Fund	StrataQuant^® Health Care Index
First Trust Industrials/Producer Durables AlphaDEX^® Fund	StrataQuant^® Industrials Index
First Trust Materials AlphaDEX^® Fund	StrataQuant^® Materials Index
First Trust Technology AlphaDEX^® Fund	StrataQuant^® Technology Index
First Trust Utilities AlphaDEX^® Fund	StrataQuant^® Utilities Index

The Indices in the following table are a family of custom “enhanced” indices developed, maintained and sponsored by Nasdaq, Inc. and licensed to FTP by Nasdaq.

Fund	Index
First Trust Large Cap Core AlphaDEX^® Fund	NASDAQ AlphaDEX^® Large Cap Core Index
First Trust Large Cap Growth AlphaDEX^® Fund	NASDAQ AlphaDEX^® Large Cap Growth Index
First Trust Large Cap Value AlphaDEX^® Fund	NASDAQ AlphaDEX^® Large Cap Value Index
First Trust Mega Cap AlphaDEX^® Fund	NASDAQ AlphaDEX^® Mega Cap Index
First Trust Mid Cap Core AlphaDEX^® Fund	NASDAQ AlphaDEX^® Mid Cap Core Index
First Trust Mid Cap Growth AlphaDEX^® Fund	NASDAQ AlphaDEX^® Mid Cap Growth Index
First Trust Mid Cap Value AlphaDEX^® Fund	NASDAQ AlphaDEX^® Mid Cap Value Index
First Trust Multi Cap Growth AlphaDEX^® Fund	NASDAQ AlphaDEX^® Multi Cap Growth Index
First Trust Multi Cap Value AlphaDEX^® Fund	NASDAQ AlphaDEX^® Multi Cap Value Index
First Trust Small Cap Core AlphaDEX^® Fund	NASDAQ AlphaDEX^® Small Cap Core Index
First Trust Small Cap Growth AlphaDEX^® Fund	NASDAQ AlphaDEX^® Small Cap Growth Index
First Trust Small Cap Value AlphaDEX^® Fund	NASDAQ AlphaDEX^® Small Cap Value Index

Types of Investments

Equities. Equity securities represent an ownership position in a company. The prices of equity securities fluctuate based on, among other things, events specific to their issuers and market, economic, and other conditions. Equity securities may include common and preferred stocks. Common stocks include the common stock of any class or series of a domestic or foreign corporation or any similar equity interest, such as a trust or partnership interest. These investments may or may not pay dividends and may or may not carry voting rights. Common stock occupies the most junior position in a company’s capital structure.

Fixed Income Investments and Cash Equivalents. Normally, the Funds invest substantially all of their assets to meet their investment objectives. However, for temporary or defensive purposes, the Funds may invest in fixed income investments and cash equivalents in order to provide income, liquidity and preserve capital.

Fixed income investments and cash equivalents held by each Fund may include, without limitation, the types of investments set forth below.

(1)

A Fund may invest in U.S. government securities, including bills, notes and bonds differing as to maturity and rates of interest, which are either issued or guaranteed by the U.S. Treasury or by U.S. government agencies or instrumentalities. U.S. government securities include securities that are issued or guaranteed by the U.S. Treasury, by various agencies of the U.S. government, or by various instrumentalities that have been established or sponsored by the U.S. government. U.S. Treasury securities are backed by the “full faith and credit” of the United States. Securities issued or guaranteed by federal agencies and U.S. government-sponsored instrumentalities may or may not be backed by the full faith and credit of the United States. Some of the U.S. government agencies

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	that issue or guarantee securities include the Export-Import Bank of the United States, the Farmers Home Administration, the Federal Housing Administration, the Maritime Administration, the Small Business Administration and The Tennessee Valley Authority. An instrumentality of the U.S. government is a government agency organized under federal charter with government supervision. Instrumentalities issuing or guaranteeing securities include, among others, the Federal Home Loan Banks, the Federal Land Banks, the Central Bank for Cooperatives, Federal Intermediate Credit Banks and the Federal National Mortgage Association (“Fannie Mae”). In the case of those U.S. government securities not backed by the full faith and credit of the United States, the investor must look principally to the agency or instrumentality issuing or guaranteeing the security for ultimate repayment and may not be able to assert a claim against the United States itself in the event that the agency or instrumentality does not meet its commitment. The U.S. government, its agencies and instrumentalities do not guarantee the market value of their securities; consequently, the value of such securities may fluctuate. In addition, each Fund may invest in sovereign debt obligations of non-U.S. countries. A sovereign debtor’s willingness or ability to repay principal and interest in a timely manner may be affected by a number of factors, including its cash flow situation, the extent of its non-U.S. reserves, the availability of sufficient non-U.S. exchange on the date a payment is due, the relative size of the debt service burden to the economy as a whole, the sovereign debtor’s policy toward principal international lenders and the political constraints to which it may be subject.
(2)	A Fund may invest in certificates of deposit issued against funds deposited in a bank or savings and loan association. Such certificates are for a definite period of time, earn a specified rate of return and are normally negotiable. If such certificates of deposit are non-negotiable, they will be considered illiquid securities and be subject to a Fund's 15% restriction on investments in illiquid securities. Pursuant to the certificate of deposit, the issuer agrees to pay the amount deposited plus interest to the bearer of the certificate on the date specified thereon. Under current FDIC regulations, the maximum insurance payable as to any one certificate of deposit is $250,000; therefore, certificates of deposit purchased by a Fund may not be fully insured. A Fund may only invest in certificates of deposit issued by U.S. banks with at least $1 billion in assets.
(3)	A Fund may invest in bankers’ acceptances, which are short-term credit instruments used to finance commercial transactions. Generally, an acceptance is a time draft drawn on a bank by an exporter or an importer to obtain a stated amount of funds to pay for specific merchandise. The draft is then “accepted” by a bank that, in effect, unconditionally guarantees to pay the face value of the instrument on its maturity date. The acceptance may then be held by the accepting bank as an asset or it may be sold in the secondary market at the going rate of interest for a specific maturity.
(4)	A Fund may invest in repurchase agreements, which involve purchases of debt securities with counterparties that are deemed by First Trust to present acceptable credit risks. In such an action, at the time a Fund purchases the security, it simultaneously agrees to resell and redeliver the security to the seller, who also simultaneously agrees to buy back the security at a fixed price and time. This assures a predetermined yield for a Fund during its holding period since the resale price is always greater than the purchase price and reflects an agreed-upon market rate. Such actions afford an opportunity for a Fund to invest temporarily available cash. A Fund may enter into repurchase agreements only with respect to obligations of the U.S. government, its agencies or instrumentalities, certificates of deposit or bankers’ acceptances in which a Fund may invest. Repurchase agreements may be considered loans to the seller, collateralized by the underlying securities. The risk to a Fund is limited to the ability of the seller to pay the agreed-upon sum on the repurchase date; in the event of default, the repurchase agreement provides that the affected Fund is entitled to sell the underlying collateral. If the value of the collateral declines after the agreement is entered into, however, and if the seller defaults under a repurchase agreement when the value of the underlying collateral is less than the repurchase price, a Fund could incur a loss of both principal and interest. The portfolio managers monitor the value of the collateral at the time the action is entered into and at all times during the term of the repurchase agreement. The portfolio managers do so in an effort to determine that the value of the collateral always equals or exceeds the agreed-upon repurchase price to be paid to a Fund. If the seller were to be subject to a federal bankruptcy proceeding, the ability of a Fund to liquidate the collateral could be delayed or impaired because of certain provisions of the bankruptcy laws.
(5)	A Fund may invest in bank time deposits, which are monies kept on deposit with banks or savings and loan associations for a stated period of time at a fixed rate of interest. There may be penalties for the early withdrawal of such time deposits, in which case the yields of these investments will be reduced.

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(6)

A Fund may invest in commercial paper, which are short-term unsecured promissory notes, including variable rate master demand notes issued by corporations to finance their current operations. Master demand notes are direct lending arrangements between the Fund and a corporation. There is no secondary market for the notes. However, they are redeemable by a Fund at any time. The Investment Committee will consider the financial condition of the corporation (e.g., earning power, cash flow and other liquidity ratios) and will continuously monitor the corporation’s ability to meet all of its financial obligations, because a Fund's liquidity might be impaired if the corporation were unable to pay principal and interest on demand. A Fund may invest in commercial paper only if it has received the highest rating from at least one nationally recognized statistical rating organization or, if unrated, judged by First Trust to be of comparable quality.

(7)

A Fund may invest in shares of money market funds, as consistent with its investment objective and policies. Shares of money market funds are subject to management fees and other expenses of those funds. Therefore, investments in money market funds will cause the Fund to bear proportionately the costs incurred by the money market funds’ operations. At the same time, a Fund will continue to pay its own management fees and expenses with respect to all of its assets, including any portion invested in the shares of other investment companies. It is possible for the Fund to lose money by investing in money market funds.

Real Estate Investment Trusts. Real estate investment trusts (“REITs”) are typically publicly traded corporations or trusts that invest in residential or commercial real estate. REITs generally can be divided into the following three types: (i) equity REITs which invest the majority of their assets directly in real property and derive their income primarily from rents and capital gains or real estate appreciation; (ii) mortgage REITs which invest the majority of their assets in real estate mortgage loans and derive their income primarily from interest payments; and (iii) hybrid REITs which combine the characteristics of equity REITs and mortgage REITs.

Portfolio Turnover

The Funds buy and sell portfolio securities in the normal course of their investment activities. The proportion of a Fund's investment portfolio that is bought and sold during a year is known as a Fund's portfolio turnover rate. A turnover rate of 100% would occur, for example, if all of the portfolio securities (other than short-term securities) were replaced once during the fiscal year. A high portfolio turnover rate could result in the payment by a Fund of increased brokerage costs, expenses and taxes. The portfolio turnover rates for the specified periods are set forth in the table below. Any significant variations in portfolio turnover rate from year-to-year resulted from fluctuation in the size of a Fund.

Portfolio Turnover Rate
Fund	Fiscal Year Ended July 31,
Fund	2017	2016
First Trust Consumer Discretionary AlphaDEX^® Fund	93%	103%
First Trust Consumer Staples AlphaDEX^® Fund	100%	102%
First Trust Energy AlphaDEX^® Fund	55%	112%
First Trust Financials AlphaDEX^® Fund	80%	75%
First Trust Health Care AlphaDEX^® Fund	112%	118%
First Trust Industrials/Producer Durables AlphaDEX^® Fund	101%	103%
First Trust Materials AlphaDEX^® Fund	84%	113%
First Trust Technology AlphaDEX^® Fund	115%	109%
First Trust Utilities AlphaDEX^® Fund	57%	71%
First Trust Large Cap Core AlphaDEX^® Fund	90%	109%
First Trust Large Cap Growth AlphaDEX^® Fund	148%	149%
First Trust Large Cap Value AlphaDEX^® Fund	72%	94%
First Trust Mega Cap AlphaDEX^® Fund	128%	145%
First Trust Mid Cap Core AlphaDEX^® Fund	103%	126%
First Trust Mid Cap Growth AlphaDEX^® Fund	153%	193%
First Trust Mid Cap Value AlphaDEX^® Fund	95%	114%

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Portfolio Turnover Rate
Fund	Fiscal Year Ended July 31,
Fund	2017	2016
First Trust Multi Cap Growth AlphaDEX^® Fund	142%	160%
First Trust Multi Cap Value AlphaDEX^® Fund	81%	96%
First Trust Small Cap Core AlphaDEX^® Fund	111%	126%
First Trust Small Cap Growth AlphaDEX^® Fund	162%	161%
First Trust Small Cap Value AlphaDEX^® Fund	110%	125%

Lending of Portfolio Securities

In order to generate additional income, as a non-principal investment strategy, First Trust is authorized to select certain Funds, with notice to the Board of Trustees, to lend portfolio securities representing up to 33⅓% of the value of their total assets to broker-dealers, banks or other institutional borrowers of securities. As with other extensions of credit, there may be risks of delay in recovery of the securities or even loss of rights in the collateral should the borrower of the securities fail financially. However, the Funds will only enter into domestic loan arrangements with broker-dealers, banks or other institutions which First Trust has determined are creditworthy under guidelines approved by the Board of Trustees. The lending Fund will pay a portion of the income earned on the lending transaction to the placing broker and may pay administrative and custodial fees in connection with these loans. First Trust may select any Fund to participate in the securities lending program, at its discretion with notice to the Board of Trustees.

In these loan arrangements, the Funds will receive collateral in the form of cash, U.S. government securities or other high-grade debt obligations equal to at least 102% (for domestic securities) or 105% (for international securities) of the market value of the securities loaned as determined at the time of loan origination. This collateral must be valued daily by First Trust or the applicable Fund’s lending agent and, if the market value of the loaned securities increases, the borrower must furnish additional collateral to the lending Fund. During the time portfolio securities are on loan, the borrower pays the lending Fund any dividends or interest paid on the securities. Loans are subject to termination at any time by the lending Fund or the borrower. While a Fund does not have the right to vote securities on loan, it would terminate the loan and regain the right to vote if that were considered important with respect to the investment. When a Fund lends portfolio securities to a borrower, payments in lieu of dividends made by the borrower to the Fund will not constitute “qualified dividends” taxable at the same rate as long-term capital gains, even if the actual dividends would have constituted qualified dividends had the Fund held the securities.

Sublicense Agreements

The Trust, on behalf of each Fund, has entered into a sublicense agreement (each a “Sublicense Agreement”) with First Trust, FTP and each Fund’s corresponding Index Provider that grants each Fund and First Trust an exclusive and transferable sublicense to use certain intellectual property of such Index Provider in connection with the issuance, distribution, marketing and/or promotion of the applicable Fund. Pursuant to each Sublicense Agreement, the Trust, on behalf of each Fund, and First Trust have agreed to be bound by certain provisions of the product license agreement by and between the corresponding Index Provider and FTP (each a “Product License Agreement”).

Pursuant to the Product License Agreement applicable to the AlphaDEX^® Sector Funds, FTP will pay IDI an annual license fee of 0.04% of the average daily net assets of each such Fund, provided that the minimum annual payment paid to IDI under the Product License Agreement shall be $50,000.

Pursuant to the Product License Agreement applicable to the AlphaDEX^® Style Funds, FTP will pay Nasdaq, Inc. an annual fee of $7,500 for each Fund and (i) 0.03% of average daily net assets for the first year of the Product License Agreement; (ii) 0.025% of average daily net assets for the second year of the Product License Agreement; (iii) 0.02% of average daily net assets for the third year of the Product License Agreement; (iv) 0.015% of average daily net assets for the fourth year of the Product License Agreement; and (v) 0.01% of average daily net assets for the fifth year of the Product License Agreement.

Investment Risks

The following risk disclosure supplements the discussion of the Funds’ investment risks that appears in the Prospectus.

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Overview

An investment in a Fund should be made with an understanding of the risks that an investment in the Fund's shares entails, including the risk that the financial condition of the issuers of the equity securities held by a Fund or the general condition of the securities market may worsen and the value of the securities and therefore the value of a Fund may decline. A Fund may not be an appropriate investment for those who are unable or unwilling to assume the risks involved generally with such an investment. The past market and earnings performance of any of the securities included in a Fund is not predictive of their future performance.

Common Stock Risk

Equity securities are especially susceptible to general market movements and to volatile increases and decreases of value as market confidence in and perceptions of the issuers change. These perceptions are based on unpredictable factors including expectations regarding government, economic, monetary and fiscal policies, inflation and interest rates, economic expansion or contraction, and global or regional political, economic or banking crises. First Trust cannot predict the direction or scope of any of these factors. Shareholders of common stocks have rights to receive payments from the issuers of those common stocks that are generally subordinate to those of creditors of, or holders of debt obligations or preferred stocks of, such issuers.

Shareholders of common stocks of the type held by the Funds have a right to receive dividends only when and if, and in the amounts, declared by the issuer’s board of directors and have a right to participate in amounts available for distribution by the issuer only after all other claims on the issuer have been paid or otherwise been settled. Common stocks do not represent an obligation of the issuer and, therefore, do not offer any assurance of income or provide the same degree of protection of capital as do debt securities. The issuance of additional debt securities or preferred stock will create prior claims for payment of principal, interest and dividends which could adversely affect the ability and inclination of the issuer to declare or pay dividends on its common stock or the rights of holders of common stock with respect to assets of the issuer upon liquidation or bankruptcy. The value of common stocks is subject to market fluctuations for as long as the common stocks remain outstanding, and thus the value of the equity securities in the Funds will fluctuate over the life of the Funds and may be more or less than the price at which they were purchased by the Funds. The equity securities held in the Funds may appreciate or depreciate in value (or pay dividends) depending on the full range of economic and market influences affecting these securities, including the impact of a Fund's purchase and sale of the equity securities and other factors.

Holders of common stocks incur more risk than holders of preferred stocks and debt obligations because common stockholders, as owners of the entity, have generally inferior rights to receive payments from the issuer in comparison with the rights of creditors of, or holders of debt obligations or preferred stocks issued by, the issuer. Cumulative preferred stock dividends must be paid before common stock dividends and any cumulative preferred stock dividend omitted is added to future dividends payable to the holders of cumulative preferred stock. Preferred stockholders are also generally entitled to rights on liquidation which are senior to those of common stockholders.

Dividends Risk

Shareholders of common stocks have rights to receive payments from the issuers of those common stocks that are generally subordinate to those of creditors of, or holders of debt obligations or preferred stocks of, such issuers. Shareholders of common stocks of the type held by the Funds have a right to receive dividends only when and if, and in the amounts, declared by the issuer’s board of directors and have a right to participate in amounts available for distribution by the issuer only after all other claims on the issuer have been paid or have otherwise been settled. Common stocks do not represent an obligation of the issuer and, therefore, do not offer any assurance of income or provide the same degree of protection of capital as do debt securities. The issuance of additional debt securities or preferred stock will create prior claims for payment of principal, interest and dividends which could adversely affect the ability and inclination of the issuer to declare or pay dividends on its common stock or the rights of holders of common stock with respect to assets of the issuer upon liquidation or bankruptcy. Cumulative preferred stock dividends must be paid before common stock dividends, and any cumulative preferred stock dividend omitted is added to future dividends payable to the holders of cumulative preferred stock. Preferred stockholders are also generally entitled to rights on liquidation that are senior to those of common stockholders.

Liquidity Risk

Whether or not the equity securities held by the Funds are listed on a securities exchange, the principal trading market for certain of the equity securities in the Funds may be in the over-the-counter (“OTC”) market. As a result, the existence of a liquid trading market for such equity securities may depend on whether dealers will make a market in the equity securities.

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There can be no assurance that a market will be made for any of such equity securities, that any market for the equity securities will be maintained or that there will be sufficient liquidity of such equity securities in any markets made. The price at which the equity securities are held by the Funds will be adversely affected if trading markets for such equity securities are limited or absent.

Listing Standards Risk

Litigation Risk

At any time litigation may be instituted on a variety of grounds with respect to the common stocks held by the Funds. The Funds are unable to predict whether litigation that has been or will be instituted might have a material adverse effect on the Funds.

Real Estate Investment Trust Risk

REITs are financial vehicles that pool investors’ capital to purchase or finance real estate. REITs may concentrate their investments in specific geographic areas or in specific property types, e.g., hotels, shopping malls, residential complexes and office buildings. The market value of REIT shares and the ability of the REITs to distribute income may be adversely affected by several factors, including rising interest rates; changes in the national, state and local economic climate and real estate conditions; perceptions of prospective tenants of the safety, convenience and attractiveness of the properties; the ability of the owners to provide adequate management, maintenance and insurance; the cost of complying with the Americans with Disabilities Act; increased competition from new properties; the impact of present or future environmental legislation and compliance with environmental laws; changes in real estate taxes and other operating expenses; adverse changes in governmental rules and fiscal policies; adverse changes in zoning laws; and other factors beyond the control of the issuers of the REITs. In addition, distributions received by the Fund from REITs may consist of dividends, capital gains and/or return of capital. Many of these distributions however will not generally qualify for favorable treatment as qualified dividend income.

Management of the Funds

Trustees and Officers

The general supervision of the duties performed for the Funds under the investment management agreement is the responsibility of the Board of Trustees. There are five Trustees of the Trust, one of whom is an “interested person” (as the term is defined in the 1940 Act) and four of whom are Trustees who are not officers or employees of First Trust or any of its affiliates (“Independent Trustees”). The Trustees set broad policies for the Funds, choose the Trust’s officers and hire the Trust’s investment advisor. The officers of the Trust manage its day-to-day operations and are responsible to the Trust’s Board of Trustees. The following is a list of the Trustees and executive officers of the Trust and a statement of their present positions and principal occupations during the past five years, the number of portfolios each Trustee oversees and the other directorships they have held during the past five years, if applicable. Each Trustee has been elected for an indefinite term. The officers of the Trust serve indefinite terms. Each Trustee, except for James A. Bowen, is an Independent Trustee. Mr. Bowen is deemed an “interested person” (as that term is defined in the 1940 Act) (“Interested Trustee”) of the Trust due to his position as Chief Executive Officer of First Trust, investment advisor to the Funds.

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Name, Address and Date of Birth	Position and Offices with Trust	Term of Office and Year First Elected or Appointed	Principal Occupations During Past 5 Years	Number of Portfolios in the First Trust Fund Complex Overseen by Trustee	Other Trusteeships or Directorships Held by Trustee During the Past 5 Years
TRUSTEE WHO IS AN INTERESTED PERSON OF THE TRUST
James A. Bowen ⁽¹⁾ 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 09/55	Chairman of the Board and Trustee	• Indefinite term • Since inception	Chief Executive Officer, First Trust Advisors L.P. and First Trust Portfolios L.P.; Chairman of the Board of Directors, BondWave LLC (Software Development Company) and Stonebridge Advisors LLC (Investment Advisor)	151 Portfolios	None
INDEPENDENT TRUSTEES
Richard E. Erickson c/o First Trust Advisors L.P. 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 04/51	Trustee	• Indefinite term • Since inception	Physician and Officer, Wheaton Orthopedics; Limited Partner, Gundersen Real Estate Limited Partnership (June 1992 to December 2016); Member, Sportsmed LLC (April 2007 to November 2015)	151 Portfolios	None
Thomas R. Kadlec c/o First Trust Advisors L.P. 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 11/57	Trustee	• Indefinite term • Since inception	President, ADM Investor Services, Inc. (Futures Commission Merchant)	151 Portfolios	Director of ADM Investor Services, Inc., ADM Investor Services International, and Futures Industry Association
Robert F. Keith c/o First Trust Advisors L.P. 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 11/56	Trustee	• Indefinite term • Since inception	President, Hibs Enterprises (Financial and Management Consulting)	151 Portfolios	Director of Trust Company of Illinois
Niel B. Nielson c/o First Trust Advisors L.P. 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 03/54	Trustee	• Indefinite term • Since inception	Managing Director and Chief Operating Officer (January 2015 to present), Pelita Harapan Educational Foundation (Educational Products and Services); President and Chief Executive Officer (June 2012 to September 2014), Servant Interactive LLC (Educational Products and Services); President and Chief Executive Officer (June 2012 to September 2014), Dew Learning LLC (Educational Products and Services); President (June 2002 to June 2012), Covenant College	151 Portfolios	Director of Covenant Transport Inc. (May 2003 to May 2014)
OFFICERS OF THE TRUST
James M. Dykas 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 01/66	President and Chief Executive Officer	• Indefinite term • Since January 2016	Managing Director and Chief Financial Officer (January 2016 to present), Controller (January 2011 to January 2016), Senior Vice President (April 2007 to January 2016), First Trust Advisors L.P. and First Trust Portfolios L.P.; Chief Financial Officer, BondWave LLC (Software Development Company) (January 2016 to present) and Stonebridge Advisors LLC (Investment Advisor) (January 2016 to present)	N/A	N/A
W. Scott Jardine 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 05/60	Secretary and Chief Legal Officer	• Indefinite term • Since inception	General Counsel, First Trust Advisors L.P. and First Trust Portfolios L.P.; Secretary and General Counsel, BondWave LLC (Software Development Company) and Secretary, Stonebridge Advisors LLC (Investment Advisor)	N/A	N/A
Daniel J. Lindquist 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 02/70	Vice President	• Indefinite term • Since inception	Managing Director (July 2012 to present), First Trust Advisors L.P. and First Trust Portfolios L.P.	N/A	N/A

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Name, Address and Date of Birth	Position and Offices with Trust	Term of Office and Year First Elected or Appointed	Principal Occupations During Past 5 Years	Number of Portfolios in the First Trust Fund Complex Overseen by Trustee	Other Trusteeships or Directorships Held by Trustee During the Past 5 Years
OFFICERS OF THE TRUST
Kristi A. Maher 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 12/66	Chief Compliance Officer and Assistant Secretary	• Indefinite term • Since inception	Deputy General Counsel, First Trust Advisors L.P. and First Trust Portfolios L.P.	N/A	N/A
Donald P. Swade 120 E. Liberty Drive Suite 400 Wheaton, IL 60187 D.O.B.: 08/72	Treasurer, Chief Financial Officer and Chief Accounting Officer	• Indefinite term • Since January 2016	Senior Vice President (July 2016 to Present), Vice President (April 2012 to July 2016), First Trust Advisors L.P. and First Trust Portfolios L.P.	N/A	N/A
Roger F. Testin 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 06/66	Vice President	• Indefinite term • Since inception	Senior Vice President, First Trust Advisors L.P. and First Trust Portfolios L.P.	N/A	N/A
Stan Ueland 120 East Liberty Drive, Suite 400 Wheaton, IL 60187 D.O.B.: 11/70	Vice President	• Indefinite term • Since inception	Senior Vice President (September 2012 to present), First Trust Advisors L.P. and First Trust Portfolios L.P.	N/A	N/A

(1)	Mr. Bowen is deemed an “interested person” of the Trust due to his position as Chief Executive Officer of First Trust, investment advisor of the Funds.

Unitary Board Leadership Structure

Each Trustee serves as a trustee of all open-end and closed-end funds in the First Trust Fund Complex (as defined below), which is known as a “unitary” board leadership structure. Each Trustee currently serves as a trustee of First Trust Series Fund and First Trust Variable Insurance Trust, open-end funds with seven portfolios advised by First Trust; First Trust Senior Floating Rate Income Fund II, Macquarie/First Trust Global Infrastructure/Utilities Dividend & Income Fund, First Trust Energy Income and Growth Fund, First Trust Enhanced Equity Income Fund, First Trust/Aberdeen Global Opportunity Income Fund, First Trust Mortgage Income Fund, First Trust Strategic High Income Fund II, First Trust/Aberdeen Emerging Opportunity Fund, First Trust Specialty Finance and Financial Opportunities Fund, First Trust High Income Long/Short Fund, First Trust Energy Infrastructure Fund, First Trust MLP and Energy Income Fund, First Trust Intermediate Duration Preferred & Income Fund, First Trust Dynamic Europe Equity Income Fund, First Trust New Opportunities MLP & Energy Fund and First Trust Senior Floating Rate 2022 Target Term Fund, closed-end funds advised by First Trust; and First Trust Exchange-Traded Fund, First Trust Exchange-Traded Fund II, First Trust Exchange-Traded Fund III, First Trust Exchange-Traded Fund IV, First Trust Exchange-Traded Fund V, First Trust Exchange-Traded Fund VI, First Trust Exchange-Traded Fund VII, First Trust Exchange-Traded Fund VIII, First Trust Exchange-Traded AlphaDEX^® Fund and First Trust Exchange-Traded AlphaDEX^® Fund II, exchange-traded funds with 128 portfolios advised by First Trust (each a “First Trust Fund” and collectively, the “First Trust Fund Complex”). None of the Trustees who are not “interested persons” of the Trust, nor any of their immediate family members, has ever been a director, officer or employee of, or consultant to, First Trust, FTP or their affiliates.

The management of the Funds, including general supervision of the duties performed for the Funds under the investment management agreement between the Trust, on behalf of the Funds, and the Advisor, is the responsibility of the Board of Trustees. The Trustees of the Trust set broad policies for the Funds, choose the Trust’s officers and hire the Funds' investment advisor and other service providers. The officers of the Trust manage the day-to-day operations and are responsible to the Trust’s Board. The Trust’s Board is composed of four Independent Trustees and one Interested Trustee. The Interested Trustee, James A. Bowen, serves as the Chairman of the Board for each fund in the First Trust Fund Complex.

The same five persons serve as Trustees on the Trust’s Board and on the Boards of all other First Trust Funds. The unitary board structure was adopted for the First Trust Funds because of the efficiencies it achieves with respect to the governance and oversight of the First Trust Funds. Each First Trust Fund is subject to the rules and regulations of the 1940 Act (and other applicable securities laws), which means that many of the First Trust Funds face similar issues with respect to certain of their fundamental activities, including risk management, portfolio liquidity, portfolio valuation and financial reporting. Because of

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the similar and often overlapping issues facing the First Trust Funds, including among the First Trust exchange-traded funds, the Board of the First Trust Funds believes that maintaining a unitary board structure promotes efficiency and consistency in the governance and oversight of all First Trust Funds and reduces the costs, administrative burdens and possible conflicts that may result from having multiple boards. In adopting a unitary board structure, the Trustees seek to provide effective governance through establishing a board the overall composition of which will, as a body, possess the appropriate skills, diversity, independence and experience to oversee the Funds' business.

Annually, the Board reviews its governance structure and the committee structures, their performance and functions, and it reviews any processes that would enhance Board governance over the Funds' business. The Board has determined that its leadership structure, including the unitary board and committee structure, is appropriate based on the characteristics of the funds it serves and the characteristics of the First Trust Fund Complex as a whole.

In order to streamline communication between the Advisor and the Independent Trustees and create certain efficiencies, the Board has a Lead Independent Trustee who is responsible for: (i) coordinating activities of the Independent Trustees; (ii) working with the Advisor, Fund counsel and the independent legal counsel to the Independent Trustees to determine the agenda for Board meetings; (iii) serving as the principal contact for and facilitating communication between the Independent Trustees and the Funds' service providers, particularly the Advisor; and (iv) any other duties that the Independent Trustees may delegate to the Lead Independent Trustee. The Lead Independent Trustee is selected by the Independent Trustees and serves a three-year term or until his or her successor is selected.

The Board has established four standing committees (as described below) and has delegated certain of its responsibilities to those committees. The Board and its committees meet frequently throughout the year to oversee the Funds' activities, review contractual arrangements with and performance of service providers, oversee compliance with regulatory requirements and review Fund performance. The Independent Trustees are represented by independent legal counsel at all Board and committee meetings (other than meetings of the Executive Committee). Generally, the Board acts by majority vote of all the Trustees, including a majority vote of the Independent Trustees if required by applicable law.

The three Committee Chairmen and the Lead Independent Trustee rotate every three years in serving as Chairman of the Audit Committee, the Nominating and Governance Committee or the Valuation Committee, or as Lead Independent Trustee. The Lead Independent Trustee and immediate past Lead Independent Trustee also serve on the Executive Committee with the Interested Trustee.

The four standing committees of the First Trust Fund Complex are: the Executive Committee (and Pricing and Dividend Committee), the Nominating and Governance Committee, the Valuation Committee and the Audit Committee. The Executive Committee, which meets between Board meetings, is authorized to exercise all powers of and to act in the place of the Board of Trustees to the extent permitted by the Trust’s Declaration of Trust and By Laws. Such Committee is also responsible for the declaration and setting of dividends. Mr. Kadlec, Mr. Bowen and Mr. Erickson are members of the Executive Committee. During the last fiscal year, the Executive Committee held four meetings.

The Nominating and Governance Committee is responsible for appointing and nominating non-interested persons to the Trust’s Board of Trustees. Messrs. Erickson, Kadlec, Keith and Nielson are members of the Nominating and Governance Committee. If there is no vacancy on the Board of Trustees, the Board will not actively seek recommendations from other parties, including shareholders. The Board of Trustees adopted a mandatory retirement age of 75 for Trustees, beyond which age Trustees are ineligible to serve. The Committee will not consider new trustee candidates who are 72 years of age or older. When a vacancy on the Board of Trustees occurs and nominations are sought to fill such vacancy, the Nominating and Governance Committee may seek nominations from those sources it deems appropriate in its discretion, including shareholders of the applicable Funds. To submit a recommendation for nomination as a candidate for a position on the Board of Trustees, shareholders of the applicable Funds should mail such recommendation to W. Scott Jardine, Secretary, at the Trust’s address, 120 East Liberty Drive, Suite 400, Wheaton, Illinois 60187. Such recommendation shall include the following information: (i) evidence of Fund ownership of the person or entity recommending the candidate (if a Fund shareholder); (ii) a full description of the proposed candidate’s background, including education, experience, current employment and date of birth; (iii) names and addresses of at least three professional references for the candidate; (iv) information as to whether the candidate is an “interested person” in relation to the Funds, as such term is defined in the 1940 Act, and such other information that may be considered to impair the candidate’s independence; and (v) any other information that may be helpful to the Committee in evaluating the candidate. If a recommendation is received with satisfactorily completed information regarding a candidate during a time when a vacancy exists on the Board or during such other time as the Nominating and Governance Committee is accepting recommendations, the recommendation will be forwarded to the Chairman of the Nominating and Governance Committee and to counsel to the Independent Trustees. Recommendations received at any other time will be kept on file until such time

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as the Nominating and Governance Committee is accepting recommendations, at which point they may be considered for nomination. During the last fiscal year, the Nominating and Governance Committee held four meetings.

The Valuation Committee is responsible for the oversight of the valuation procedures of the Funds (the "Valuation Procedures"), for determining the fair value of the Funds' securities or other assets under certain circumstances as described in the Valuation Procedures and for evaluating the performance of any pricing service for the Funds. Messrs. Erickson, Kadlec, Keith and Nielson are members of the Valuation Committee. During the last fiscal year, the Valuation Committee held four meetings.

The Audit Committee is responsible for overseeing each Fund’s accounting and financial reporting process, the system of internal controls and audit process and for evaluating and appointing independent auditors (subject also to Board approval). Messrs. Erickson, Kadlec, Keith and Nielson serve on the Audit Committee. During the last fiscal year, the Audit Committee held four meetings.

Executive Officers

The executive officers of the Trust hold the same positions with each fund in the First Trust Fund Complex (representing 151 portfolios) as they hold with the Trust.

Risk Oversight

As part of the general oversight of the Funds, the Board is involved in the risk oversight of the Funds. The Board has adopted and periodically reviews policies and procedures designed to address each Fund’s risks. Oversight of investment and compliance risk is performed primarily at the Board level in conjunction with the Advisor’s investment oversight group and the Trust’s Chief Compliance Officer (“CCO”). Oversight of other risks also occurs at the committee level. The Advisor’s investment oversight group reports to the Board at quarterly meetings regarding, among other things, Fund performance and the various drivers of such performance. The Board reviews reports on the Funds' and the service providers’ compliance policies and procedures at each quarterly Board meeting and receives an annual report from the CCO regarding the operations of the Funds' and the service providers’ compliance program. In addition, the Independent Trustees meet privately each quarter with the CCO. The Audit Committee reviews with the Advisor each Fund’s major financial risk exposures and the steps the Advisor has taken to monitor and control these exposures, including each Fund’s risk assessment and risk management policies and guidelines. The Audit Committee also, as appropriate, reviews in a general manner the processes other Board committees have in place with respect to risk assessment and risk management. The Nominating and Governance Committee monitors all matters related to the corporate governance of the Trust. The Valuation Committee monitors valuation risk and compliance with the Funds' Valuation Procedures and oversees the pricing services and actions by the Advisor’s Pricing Committee with respect to the valuation of portfolio securities.

Not all risks that may affect the Funds can be identified nor can controls be developed to eliminate or mitigate their occurrence or effects. It may not be practical or cost effective to eliminate or mitigate certain risks, the processes and controls employed to address certain risks may be limited in their effectiveness, and some risks are simply beyond the reasonable control of the Funds or the Advisor or other service providers. For instance, as the use of Internet technology has become more prevalent, the Funds and their service providers have become more susceptible to potential operational risks through breaches in cyber security (generally, intentional and unintentional events that may cause a Fund or a service provider to lose proprietary information, suffer data corruption or lose operational capacity). There can be no guarantee that any risk management systems established by the Funds, their service providers, or issuers of the securities in which the Funds invest to reduce cyber security risks will succeed, and the Funds cannot control such systems put in place by service providers, issuers or other third parties whose operations may affect the Funds and/or their shareholders. Moreover, it is necessary to bear certain risks (such as investment-related risks) to achieve a Fund's goals. As a result of the foregoing and other factors, the Funds' ability to manage risk is subject to substantial limitations.

Board Diversification and Trustee Qualifications

As described above, the Nominating and Governance Committee of the Board oversees matters related to the nomination of Trustees. The Nominating and Governance Committee seeks to establish an effective Board with an appropriate range of skills and diversity, including, as appropriate, differences in background, professional experience, education, vocation, and other individual characteristics and traits in the aggregate. Each Trustee must meet certain basic requirements, including relevant skills and experience, time availability and, if qualifying as an Independent Trustee, independence from the Advisor, underwriters or other service providers, including any affiliates of these entities.

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Listed below for each current Trustee are the experiences, qualifications and attributes that led to the conclusion, as of the date of this SAI, that each current Trustee should serve as a Trustee in light of the Trust’s business and structure.

Richard E. Erickson, M.D., is an orthopedic surgeon. He also has been President of Wheaton Orthopedics, a co-owner and director of a fitness center and a limited partner of two real estate companies. Dr. Erickson has served as a Trustee of each First Trust Fund since its inception. Dr. Erickson has also served as the Lead Independent Trustee and on the Executive Committee (2008–2009), Chairman of the Nominating and Governance Committee (2003–2007 and 2014–2016), Chairman of the Audit Committee (2012–2013) and Chairman of the Valuation Committee (June 2006–2007 and 2010–2011) of the First Trust Funds. He currently serves as Lead Independent Trustee and on the Executive Committee (since January 1, 2017) of the First Trust Funds.

Thomas R. Kadlec is President of ADM Investor Services Inc. (“ADMIS”), a futures commission merchant and wholly-owned subsidiary of the Archer Daniels Midland Company (“ADM”). Mr. Kadlec has been employed by ADMIS and its affiliates since 1990 in various accounting, financial, operations and risk management capacities. Mr. Kadlec serves on the boards of several international affiliates of ADMIS and is a member of ADM’s Integrated Risk Committee, which is tasked with the duty of implementing and communicating enterprise-wide risk management. In 2014, Mr. Kadlec was elected to the board of the Futures Industry Association. Mr. Kadlec has served as a Trustee of each First Trust Fund since its inception. Mr. Kadlec also served on the Executive Committee from the organization of the first First Trust closed-end fund in 2003 until he was elected as the first Lead Independent Trustee in December 2005, serving as such through 2007 (and 2014–2016). He also served as Chairman of the Valuation Committee (2008–2009), Chairman of the Audit Committee (2010–2011) and Chairman of the Nominating and Governance Committee (2012–2013). He currently serves as Chairman of the Valuation Committee and on the Executive Committee (since January 1, 2017) of the First Trust Funds.

Robert F. Keith is President of Hibs Enterprises, a financial and management consulting firm. Mr. Keith has been with Hibs Enterprises since 2003. Prior thereto, Mr. Keith spent 18 years with ServiceMaster and Aramark, including three years as President and COO of ServiceMaster Consumer Services, where he led the initial expansion of certain products overseas; five years as President and COO of ServiceMaster Management Services; and two years as President of Aramark ServiceMaster Management Services. Mr. Keith is a certified public accountant and also has held the positions of Treasurer and Chief Financial Officer of ServiceMaster, at which time he oversaw the financial aspects of ServiceMaster’s expansion of its Management Services division into Europe, the Middle East and Asia. Mr. Keith has served as a Trustee of the First Trust Funds since June 2006. Mr. Keith has also served as the Chairman of the Audit Committee (2008–2009) and Chairman of the Nominating and Governance Committee (2010–2011) and Chairman of the Valuation Committee (2014–2016) of the First Trust Funds. He served as Lead Independent Trustee and on the Executive Committee (2012–2016) and currently serves as Chairman of the Audit Committee (since January 1, 2017) of the First Trust Funds.

Niel B. Nielson, Ph.D., has been the Managing Director and Chief Operating Officer of Pelita Harapan Educational Foundation, a global provider of educational products and services since January 2015. Mr. Nielson formerly served as the President and Chief Executive Officer of Dew Learning LLC from June 2012 through September 2014. Mr. Nielson formerly served as President of Covenant College (2002–2012), and as a partner and trader (of options and futures contracts for hedging options) for Ritchie Capital Markets Group (1996–1997), where he held an administrative management position at this proprietary derivatives trading company. He also held prior positions in new business development for ServiceMaster Management Services Company and in personnel and human resources for NationsBank of North Carolina, N.A. and Chicago Research and Trading Group, Ltd. (“CRT”). His international experience includes serving as a director of CRT Europe, Inc. for two years, directing out of London all aspects of business conducted by the U.K. and European subsidiary of CRT. Prior to that, Mr. Nielson was a trader and manager at CRT in Chicago. Mr. Nielson has served as a Trustee of each First Trust Fund since its inception and of the First Trust Funds since 1999. Mr. Nielson has also served as the Chairman of the Audit Committee (2003–2006 and 2014–2016), Chairman of the Valuation Committee (2007–2008), Chairman of the Nominating and Governance Committee (2008–2009) and Lead Independent Trustee and a member of the Executive Committee (2010–2011). He currently serves as Chairman of the Nominating and Governance Committee (since January 1, 2017) of the First Trust Funds.

James A. Bowen is Chief Executive Officer of First Trust Advisors L.P. and First Trust Portfolios L.P. Mr. Bowen is involved in the day-to-day management of the First Trust Funds and serves on the Executive Committee. He has over 26 years of experience in the investment company business in sales, sales management and executive management. Mr. Bowen has served as a Trustee of each First Trust Fund since its inception and of the First Trust Funds since 1999.

Effective January 1, 2016, the fixed annual retainer paid to the Independent Trustees is $230,000 per year and an annual per fund fee of $2,500 for each closed-end fund and actively managed fund and $250 for each index fund. The fixed annual retainer is allocated equally among each fund in the First Trust Fund Complex rather than being allocated pro rata based

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on each fund’s net assets. Additionally, the Lead Independent Trustee is paid $30,000 annually, the Chairman of the Audit Committee or Valuation Committee are each paid $20,000 annually and the Chairman of the Nominating and Governance Committee is paid $10,000 annually to serve in such capacities with compensation allocated pro rata among each fund in the First Trust Fund Complex based on its net assets.

The following table sets forth the compensation (including reimbursement for travel and out-of-pocket expenses) paid by the Funds and the First Trust Fund Complex to each of the Independent Trustees for the fiscal year ended July 31, 2017 and the calendar year ended December 31, 2016, respectively. The Trust has no retirement or pension plans. The officers and Trustee who are “interested persons” as designated above serve without any compensation from the Trust. The Trust has no employees. Its officers are compensated by First Trust.

Name of Trustee	Total Compensation from the Funds ⁽¹⁾	Total Compensation from the First Trust Fund Complex ⁽²⁾
Richard E. Erickson	$46,343	$370,744
Thomas R. Kadlec	$48,337	$391,203
Robert F. Keith	$46,792	$381,412
Niel B. Nielson	$45,646	$381,482

(1)	The compensation paid by the Funds to the Independent Trustees for the fiscal year ended July 31, 2017 for services to the Funds.
(2)	The total compensation paid to the Independent Trustees for the calendar year ended December 31, 2016 for services to the 137 portfolios existing in 2016, which consisted of 7 open-end mutual funds, 16 closed-end funds and 114 exchange-traded funds.

The following table sets forth the dollar range of equity securities beneficially owned by the Trustees in the Funds and in other funds overseen by the Trustees in the First Trust Fund Complex as of December 31, 2016:

Dollar Range of Equity Securities in the Funds

	Interested Trustee	Independent Trustees
	James A. Bowen	Richard E. Erickson	Thomas R. Kadlec	Robert F. Keith	Niel B. Nielson
First Trust Energy AlphaDEX^® Fund	Over $100,000	None	None	None	None
First Trust Financials AlphaDEX^® Fund	Over $100,000	None	None	None	None
First Trust Large Cap Core AlphaDEX^® Fund	Over $100,000	None	None	$50,001–$100,000	None
First Trust Materials AlphaDEX^® Fund	None	None	None	None	$1–10,000
First Trust Mid Cap Core AlphaDEX^® Fund	None	None	None	$10,001–$50,000	None
First Trust Multi Cap Growth AlphaDEX^® Fund	None	None	None	$10,001–$50,000	None
First Trust Multi Cap Value AlphaDEX^® Fund	None	None	None	$10,001–$50,000	None
First Trust Small Cap Core AlphaDEX^® Fund	None	None	None	$10,001–$50,000	None
Aggregate Dollar Range of Equity Securities in All Registered Investment Companies Overseen by Trustee in First Trust Fund Complex	Over $100,000	Over $100,000	Over $100,000	Over $100,000	Over $100,000

As of December 31, 2016, the Independent Trustees of the Trust and their immediate family members did not own beneficially or of record any class of securities of an investment advisor or principal underwriter of the Funds or any person directly or indirectly controlling, controlled by or under common control with an investment advisor or principal underwriter of the Funds.

As of December 31, 2016, the officers and Trustees, in the aggregate, owned less than 1% of the shares of each Fund.

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The table set forth in Exhibit A shows the percentage ownership of each shareholder or “group” (as that term is used in Section 13(d) of the Securities Exchange Act of 1934, as amended (the “1934 Act”)) who, as of October 31, 2017, owned of record, or is known by the Trust to have owned of record or beneficially, 5% or more of the shares of a Fund (the “Principal Holders”). A control person is one who owns, either directly or indirectly, more than 25% of the voting securities of a Fund or acknowledges the existence of control. A party that controls a Fund may be able to significantly influence the outcome of any item presented to shareholders for approval.

Information as to the Principal Holders is based on the securities position listing reports as of October 31, 2017. The Funds do not have any knowledge of who the ultimate beneficiaries are of the shares.

Investment Advisor. First Trust, 120 East Liberty Drive, Suite 400, Wheaton, Illinois 60187, is the investment advisor to the Funds. First Trust is a limited partnership with one limited partner, Grace Partners of DuPage L.P., and one general partner, The Charger Corporation. Grace Partners of DuPage L.P. is a limited partnership with one general partner, The Charger Corporation, and a number of limited partners. The Charger Corporation is an Illinois corporation controlled by James A. Bowen, the Chief Executive Officer of First Trust. First Trust discharges its responsibilities to the Funds subject to the policies of the Board of Trustees.

First Trust provides investment tools and portfolios for advisors and investors. First Trust is committed to theoretically sound portfolio construction and empirically verifiable investment management approaches. Its asset management philosophy and investment discipline are deeply rooted in the application of intuitive factor analysis and model implementation to enhance investment decisions.

First Trust acts as investment advisor for and manages the investment and reinvestment of the assets of the Funds. First Trust also administers the Trust’s business affairs, provides office facilities and equipment and certain clerical, bookkeeping and administrative services, and permits any of its officers or employees to serve without compensation as Trustees or officers of the Trust if elected to such positions.

Pursuant to an investment management agreement between First Trust and the Trust (the “Expense Cap Investment Management Agreement”), First Trust Consumer Discretionary AlphaDEX^® Fund, First Trust Consumer Staples AlphaDEX^® Fund, First Trust Energy AlphaDEX^® Fund, First Trust Financials AlphaDEX^® Fund, First Trust Health Care AlphaDEX^® Fund, First Trust Industrials/Producer Durables AlphaDEX^® Fund, First Trust Materials AlphaDEX^® Fund, First Trust Technology AlphaDEX^® Fund, First Trust Utilities AlphaDEX^® Fund, First Trust Large Cap Core AlphaDEX^® Fund, First Trust Large Cap Growth AlphaDEX^® Fund, First Trust Large Cap Value AlphaDEX^® Fund, First Trust Mid Cap Core AlphaDEX^® Fund, First Trust Multi Cap Growth AlphaDEX^® Fund, First Trust Multi Cap Value AlphaDEX^® Fund and First Trust Small Cap Core AlphaDEX^® Fund (the “Expense Cap Funds”) have agreed to pay an annual management fee equal to 0.50% of their average daily net assets.

Each Expense Cap Fund is responsible for all its expenses, including the investment advisory fees, costs of transfer agency, custody, fund administration, legal, audit and other services, interest, taxes, sublicensing fees, brokerage commissions and other expenses connected with executions of portfolio transactions, any distribution and service fees pursuant to a 12b-1 plan, if any, and extraordinary expenses. First Trust has agreed to waive fees and/or pay Fund expenses to the extent necessary to prevent the operating expenses of each Fund (excluding interest expense, brokerage commissions and other trading expenses, taxes and extraordinary expenses) from exceeding 0.70% of average daily net assets until November 30, 2018. Expenses borne and fees waived by First Trust are subject to reimbursement by the Funds up to three years from the date the fee or expense was incurred by each Fund, but no reimbursement payment will be made by the Funds at any time if it would result in a Fund’s expenses exceeding 0.70% of average daily net assets.

Pursuant to an investment management agreement between First Trust and the Trust (the "Unitary Fee Investment Management Agreement"), First Trust Mid Cap Growth AlphaDEX^® Fund, First Trust Mid Cap Value AlphaDEX^® Fund, First Trust Mega Cap AlphaDEX^® Fund, First Trust Small Cap Growth AlphaDEX^® Fund and First Trust Small Cap Value AlphaDEX^® Fund (the “Unitary Fee Funds”), First Trust is paid an annual unitary management fee of 0.70% of such Fund’s average daily net assets and is responsible for the expenses of such Fund, including the cost of transfer agency, custody, fund administration, legal, audit and other services, and excluding distribution and service fees pursuant to a 12b-1 plan, if any, brokerage expense, taxes, interest and extraordinary expenses.

Under the Investment Management Agreements, First Trust shall not be liable for any loss sustained by reason of the purchase, sale or retention of any security, whether or not such purchase, sale or retention shall have been based upon the investigation and research made by any other individual, firm or corporation, if such recommendation shall have been selected with due care and in good faith, except loss resulting from willful misfeasance, bad faith, or gross negligence on the part of

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First Trust in the performance of its obligations and duties, or by reason of its reckless disregard of its obligations and duties. Each Investment Management Agreement terminates automatically upon assignment and is terminable at any time without penalty as to a Fund by the Board of Trustees, including a majority of the Independent Trustees, or by vote of the holders of a majority of the Fund’s outstanding voting securities on 60 days’ written notice to First Trust, or by First Trust on 60 days’ written notice to the Fund.

The following table sets forth the management fees (net of fee waivers and expense reimbursements, where applicable) paid by each Expense Cap Fund to First Trust, and the fees waived and expenses reimbursed by First Trust, for the specified periods. The second table sets forth the unitary management fee paid by each Unitary Fee Fund to First Trust for the specified periods.

	Amount of Management Fees (Net of Fee Waivers and Expense Reimbursements by First Trust)			Amount of Fees Waived and Expenses Reimbursed By First Trust
Fund	Fiscal Year Ended July 31,			Fiscal Year Ended July 31,
Fund	2017	2016	2015	2017	2016	2015
First Trust Consumer Discretionary AlphaDEX^® Fund	$4,228,776	$10,677,932	$9,372,447	$0	$0	$0
First Trust Consumer Staples AlphaDEX^® Fund	$5,902,947	$13,246,253	$10,792,444	$0	$0	$0
First Trust Energy AlphaDEX^® Fund	$5,486,706	$3,300,775	$2,345,497	$0	$0	$0
First Trust Financials AlphaDEX^® Fund	$4,669,835	$4,260,705	$4,262,374	$0	$0	$0
First Trust Health Care AlphaDEX^® Fund	$4,980,202	$12,689,023	$14,878,403	$0	$0	$0
First Trust Industrials/Producer Durables AlphaDEX^® Fund	$5,184,655	$1,090,088	$3,170,252	$0	$0	$0
First Trust Materials AlphaDEX^® Fund	$1,514,489	$707,555	$1,568,791	$0	$0	$0
First Trust Technology AlphaDEX^® Fund	$2,925,515	$3,000,554	$4,496,960	$0	$0	$0
First Trust Utilities AlphaDEX^® Fund	$7,504,799	$4,356,466	$1,490,275	$0	$0	$0
First Trust Large Cap Core AlphaDEX^® Fund	$7,469,921	$8,106,246	$8,127,839	$0	$0	$0
First Trust Large Cap Growth AlphaDEX^® Fund	$3,081,886	$3,281,026	$2,492,600	$0	$0	$0
First Trust Large Cap Value AlphaDEX^® Fund	$4,715,801	$4,553,382	$6,068,137	$0	$0	$0
First Trust Mid Cap Core AlphaDEX^® Fund	$3,449,336	$3,718,893	$4,547,238	$0	$0	$0
First Trust Multi Cap Growth AlphaDEX^® Fund	$449,626	$466,006	$355,207	$0	$561	$11,781
First Trust Multi Cap Value AlphaDEX^® Fund	$553,533	$625,892	$960,372	$0	$0	$0
First Trust Small Cap Core AlphaDEX^® Fund	$2,451,175	$2,544,170	$3,097,801	$0	$0	$0

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Amount of Unitary Fees
Fund	Fiscal Year Ended July 31,
Fund	2017	2016	2015
First Trust Mega Cap AlphaDEX^® Fund	$107,839	$114,252	$117,913
First Trust Mid Cap Growth AlphaDEX^® Fund	$645,329	$667,117	$515,800
First Trust Mid Cap Value AlphaDEX^® Fund	$402,346	$348,060	$520,444
First Trust Small Cap Growth AlphaDEX^® Fund	$619,913	$452,053	$325,856
First Trust Small Cap Value AlphaDEX^® Fund	$552,067	$357,831	$495,146

Investment Committee. The Investment Committee of First Trust (the “Investment Committee”) is primarily responsible for the day-to-day management of the Funds. There are currently six members of the Investment Committee, as follows:

Name	Position with First Trust	Length of Service with First Trust	Principal Occupation During Past Five Years
Daniel J. Lindquist	Chairman of the Investment Committee and Managing Director	Since 2004	Managing Director (2012 to present), Senior Vice President (2005 to 2012), First Trust Advisors L.P. and First Trust Portfolios L.P.
Jon C. Erickson	Senior Vice President	Since 1994	Senior Vice President, First Trust Advisors L.P. and First Trust Portfolios L.P.
David G. McGarel	Chief Operating Officer Chief Investment Officer and Managing Director	Since 1997	Chief Operating Officer (2016 to present), Chief Investment Officer (2012 to present), Managing Director (2012 to present), Senior Vice President (2005 to 2012), First Trust Advisors L.P. and First Trust Portfolios L.P.
Roger F. Testin	Senior Vice President	Since 2001	Senior Vice President, First Trust Advisors L.P. and First Trust Portfolios L.P.
Stan Ueland	Senior Vice President	Since 2005	Senior Vice President (2012 to present), Vice President (2005 to 2012), First Trust Advisors L.P. and First Trust Portfolios L.P.
Chris A. Peterson	Senior Vice President	Since 2000	Senior Vice President, First Trust Advisors L.P. and First Trust Portfolios L.P.

Daniel J. Lindquist: Mr. Lindquist is Chairman of the Investment Committee and presides over Investment Committee meetings. Mr. Lindquist is also responsible for overseeing the implementation of the Funds' investment strategies.

Jon C. Erickson: As the head of First Trust’s Equity Research Group, Mr. Erickson is responsible for determining the securities to be purchased and sold by funds that do not utilize quantitative investment strategies.

David G. McGarel: As First Trust's Chief Investment Officer, Mr. McGarel consults with the Investment Committee on market conditions and First Trust's general investment philosophy. As Chief Operating Officer, Mr. McGarel is responsible for First Trust and FTP operations, including information systems, trust administration and First Trust administration.

Roger F. Testin: As head of First Trust’s Portfolio Management Group, Mr. Testin is responsible for executing the instructions of the Strategy Research Group and Equity Research Group.

Stan Ueland: Mr. Ueland executes the investment strategies of each of the Funds.

Chris A. Peterson: Mr. Peterson is a Senior Vice President and head of the strategy research group at First Trust. Mr. Peterson is responsible for developing and implementing quantitative equity investment strategies.

As of July 31, 2017, Mr. Lindquist, Mr. McGarel, Mr. Testin, Mr. Ueland and Mr. Peterson beneficially owned shares of a Fund. Mr. Lindquist owned shares in the amount of ($10,001-$50,000) of First Trust Large Cap Core AlphaDEX^® Fund, ($10,001-$50,000) of First Trust Small Cap Core AlphaDEX^® Fund and ($10,001-$50,000) of First Trust Large Cap Value AlphaDEX^® Fund. Mr. McGarel owned shares in the amount of ($10,001-$50,000) of First Trust Financials AlphaDEX^® Fund, ($50,001-$100,000) of First Trust Large Cap Core AlphaDEX^® Fund and ($100,001-$500,000) of First Trust Large Cap Value AlphaDEX^® Fund. Mr. Testin owned shares in the amount of ($10,001-$50,000) of First Trust Financials AlphaDEX^® Fund, ($10,001-$50,000) of First Trust Health Care AlphaDEX^® Fund, ($10,001-$50,000) of First Trust Mid Cap Core AlphaDEX^® Fund and ($10,001-$50,000) of First Trust Small Cap Core AlphaDEX^® Fund. Mr. Ueland owned shares in the amount of ($10,001-$50,000) of First Trust Health Care AlphaDEX^® Fund and ($10,001-$50,000) of First Trust Technology AlphaDEX^® Fund. Mr. Peterson owned shares in the amount of ($10,001-$50,000) of First Trust Consumer Discretionary

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AlphaDEX^® Fund, ($10,001-$50,000) of First Trust Industrials/Producer Durables AlphaDEX^® Fund, ($10,001-$50,000) of First Trust Large Cap Core AlphaDEX^® Fund, ($10,001-$50,000) of First Trust Mid Cap Core AlphaDEX^® Fund, ($10,001-$50,000) of First Trust Multi Cap Growth AlphaDEX^® Fund and ($10,001-$50,000) of First Trust Small Cap Value AlphaDEX^® Fund.

Compensation. The compensation structure for each member of the Investment Committee is based upon a fixed salary as well as a discretionary bonus determined by the management of First Trust. Salaries are determined by management and are based upon an individual’s position and overall value to the firm. Bonuses are also determined by management and are based upon an individual’s overall contribution to the success of the firm and the profitability of the firm. Salaries and bonuses for members of the Investment Committee are not based upon criteria such as performance of the Funds or the value of assets included in the Funds’ portfolios. In addition Mr. Erickson, Mr. Lindquist, Mr. McGarel, Mr. Peterson and Mr. Ueland also have an indirect ownership stake in the firm and will therefore receive their allocable share of ownership-related distributions.

The Investment Committee manages the investment vehicles (other than the Funds of the Trust) with the number of accounts and assets, as of the fiscal year ended July 31, 2017, set forth in the table below:

Accounts Managed by Investment Committee

Investment Committee Member	Registered Investment Companies Number of Accounts ($ Assets)	Other Pooled Investment Vehicles Number of Accounts ($ Assets)	Other Accounts Number of Accounts ($ Assets)
Dan Lindquist	79 (25,169,611,066)	31 (690,705,031)	1,681 (575,576,980)
David McGarel	79 (25,169,611,066)	31 (690,705,031)	1,681 (575,576,980)
Jon Erickson	79 (25,169,611,066)	31 (690,705,031)	1,681 (575,576,980)
Roger Testin	79 (25,169,611,066)	31 (690,705,031)	1,681 (575,576,980)
Stan Ueland	73 (24,401,466,719)	30 (656,220,533)	1,681 (575,576,980)
Chris Peterson	79 (25,169,611,066)	12 (319,738,835)	1,681 (575,576,980)

Conflicts. None of the accounts managed by the Investment Committee pay an advisory fee that is based upon the performance of the account. In addition, First Trust believes that there are no material conflicts of interest that may arise in connection with the Investment Committee's management of the Funds' investments and the investments of the other accounts managed by the Investment Committee. However, because the investment strategy of the Funds and the investment strategies of many of the other accounts managed by the Investment Committee are based on fairly mechanical investment processes, the Investment Committee may recommend that certain clients sell and other clients buy a given security at the same time. In addition, because the investment strategies of the Funds and other accounts managed by the Investment Committee generally result in the clients investing in readily available securities, First Trust believes that there should not be material conflicts in the allocation of investment opportunities between the Funds and other accounts managed by the Investment Committee.

Brokerage Allocations

First Trust is responsible for decisions to buy and sell securities for the Funds and for the placement of the Funds’ securities business, the negotiation of the commissions to be paid on brokered transactions, the prices for principal trades in securities, and the allocation of portfolio brokerage and principal business. It is the policy of First Trust to seek the best execution at the best security price available with respect to each transaction, and with respect to brokered transactions in light of the overall quality of brokerage and research services provided to First Trust and its clients. The best price to a Fund means the best net price without regard to the mix between purchase or sale price and commission, if any. Purchases may be made from underwriters, dealers and, on occasion, the issuers. Commissions will be paid on a Fund’s futures and options transactions, if any. The purchase price of portfolio securities purchased from an underwriter or dealer may include underwriting commissions and dealer spreads. The Funds may pay markups on principal transactions. In selecting broker-dealers and in negotiating commissions, First Trust considers, among other things, the firm’s reliability, the quality of its execution services on a continuing basis and its financial condition. Fund portfolio transactions may be effected with broker-dealers who have assisted investors in the purchase of shares.

Section 28(e) of the 1934 Act permits an investment advisor, under certain circumstances, to cause an account to pay a broker or dealer who supplies brokerage and research services a commission for effecting a transaction in excess of the amount of commission another broker or dealer would have charged for effecting the transaction. Brokerage and research services include (a) furnishing advice as to the value of securities, the advisability of investing, purchasing or selling securities,

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and the availability of securities or purchasers or sellers of securities; (b) furnishing analyses and reports concerning issuers, industries, securities, economic factors and trends, portfolio strategy and the performance of accounts; and (c) effecting securities transactions and performing functions incidental thereto (such as clearance, settlement and custody). Such brokerage and research services are often referred to as “soft dollars.” First Trust has advised the Board of Trustees that it does not currently intend to use soft dollars.

Notwithstanding the foregoing, in selecting brokers, First Trust may in the future consider investment and market information and other research, such as economic, securities and performance measurement research, provided by such brokers, and the quality and reliability of brokerage services, including execution capability, performance and financial responsibility.

Accordingly, the commissions charged by any such broker may be greater than the amount another firm might charge if First Trust determines in good faith that the amount of such commissions is reasonable in relation to the value of the research information and brokerage services provided by such broker to First Trust or the Trust. In addition, First Trust must determine that the research information received in this manner provides the Funds with benefits by supplementing the research otherwise available to the Funds. The Investment Management Agreement provides that such higher commissions will not be paid by the Funds unless the Advisor determines in good faith that the amount is reasonable in relation to the services provided. The investment advisory fees paid by the Funds to First Trust under the Investment Management Agreement would not be reduced as a result of receipt by First Trust of research services.

First Trust places portfolio transactions for other advisory accounts advised by it, and research services furnished by firms through which the Funds effect their securities transactions may be used by First Trust in servicing all of its accounts; not all of such services may be used by First Trust in connection with the Funds. First Trust believes it is not possible to measure separately the benefits from research services to each of the accounts (including the Funds) advised by it. Because the volume and nature of the trading activities of the accounts are not uniform, the amount of commissions in excess of those charged by another broker paid by each account for brokerage and research services will vary. However, First Trust believes such costs to the Funds will not be disproportionate to the benefits received by the Funds on a continuing basis. First Trust seeks to allocate portfolio transactions equitably whenever concurrent decisions are made to purchase or sell securities by the Funds and another advisory account. In some cases, this procedure could have an adverse effect on the price or the amount of securities available to the Funds. In making such allocations between the Funds and other advisory accounts, the main factors considered by First Trust are the respective investment objectives, the relative size of portfolio holding of the same or comparable securities, the availability of cash for investment and the size of investment commitments generally held.

Brokerage Commissions

The following table sets forth the aggregate amount of brokerage commissions paid by each Fund for the specified periods. Any significant variations in brokerage commissions from year-to-year resulted from a fluctuation in the size of a Fund.

Aggregate Amount of Brokerage Commissions
Fund	Fiscal Year Ended July 31,
Fund	2017	2016	2015
First Trust Consumer Discretionary AlphaDEX^® Fund	$413,070	$1,118,596	$1,148,702
First Trust Consumer Staples AlphaDEX^® Fund	$586,525	$1,140,272	$927,730
First Trust Energy AlphaDEX^® Fund	$572,897	$1,173,962	$446,625
First Trust Financials AlphaDEX^® Fund	$389,035	$362,264	$394,092
First Trust Health Care AlphaDEX^® Fund	$404,860	$1,099,846	$1,020,419
First Trust Industrials/Producer Durables AlphaDEX^® Fund	$385,407	$113,298	$264,490
First Trust Materials AlphaDEX^® Fund	$121,480	$93,886	$153,235
First Trust Technology AlphaDEX^® Fund	$337,035	$404,392	$492,807
First Trust Utilities AlphaDEX^® Fund	$897,356	$539,128	$284,729
First Trust Large Cap Core AlphaDEX^® Fund	$508,341	$808,646	$584,092
First Trust Large Cap Growth AlphaDEX^® Fund	$285,552	$303,735	$221,763
First Trust Large Cap Value AlphaDEX^® Fund	$320,208	$551,336	$495,351

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Aggregate Amount of Brokerage Commissions
Fund	Fiscal Year Ended July 31,
Fund	2017	2016	2015
First Trust Mega Cap AlphaDEX^® Fund	$5,235	$7,339	$6,471
First Trust Mid Cap Core AlphaDEX^® Fund	$441,775	$638,149	$522,143
First Trust Mid Cap Growth AlphaDEX^® Fund	$78,584	$88,575	$50,488
First Trust Mid Cap Value AlphaDEX^® Fund	$37,403	$49,511	$44,997
First Trust Multi Cap Growth AlphaDEX^® Fund	$63,070	$72,271	$44,679
First Trust Multi Cap Value AlphaDEX^® Fund	$59,548	$116,939	$114,376
First Trust Small Cap Core AlphaDEX^® Fund	$492,296	$808,421	$614,262
First Trust Small Cap Growth AlphaDEX^® Fund	$120,672	$87,074	$54,879
First Trust Small Cap Value AlphaDEX^® Fund	$83,968	$101,545	$82,888

During the last fiscal year, the First Trust Financials AlphaDEX^® Fund held securities of Bank of America Corporation, The Goldman Sachs Group, Inc. and Citigroup Inc., each a regular broker or dealer of the Fund as defined in Rule 10b-1 under the 1940 Act. As of July 31, 2017, the Fund’s investment in each was 0.70%, 0.71% and 0.72% of the Fund’s net assets, respectively.

During the last fiscal year, the First Trust Large Cap Core AlphaDEX^® Fund held securities of The Goldman Sachs Group, Inc., Bank of America Corporation and Citigroup Inc., each a regular broker or dealer of the Fund as defined in Rule 10b-1 under the 1940 Act. As of July 31, 2017, the Fund’s investment in each was 0.18%, 0.26% and 0.36% of the Fund’s net assets, respectively.

During the last fiscal year, the First Trust Large Cap Growth AlphaDEX^® Fund held securities of Citigroup Inc., Bank of America Corporation and The Goldman Sachs Group, Inc., each a regular broker or dealer of the Fund as defined in Rule 10b-1 under the 1940 Act. As of July 31, 2017, the Fund’s investment in each was 0.00%, 0.51% and 0.52% of the Fund’s net assets, respectively.

During the last fiscal year, the First Trust Large Cap Value AlphaDEX^® Fund held securities of Bank of America Corporation, The Goldman Sachs Group, Inc. and Citigroup Inc., each a regular broker or dealer of the Fund as defined in Rule 10b-1 under the 1940 Act. As of July 31, 2017, the Fund’s investment in each was 0.00%, 0.00% and 0.73% of the Fund’s net assets, respectively.

During the last fiscal year, the First Trust Mega Cap AlphaDEX^® Fund held securities of Bank of America Corporation, The Goldman Sachs Group, Inc. and Citigroup Inc., each a regular broker or dealer of the Fund as defined in Rule 10b-1 under the 1940 Act. As of July 31, 2017, the Fund’s investment in each was 0.64%, 1.96% and 1.98% of the Fund’s net assets, respectively.

During the last fiscal year, the First Trust Multi Cap Growth AlphaDEX^® Fund held securities of Citigroup Inc., Bank of America Corporation and The Goldman Sachs Group, Inc., each a regular broker or dealer of the Fund as defined in Rule 10b-1 under the 1940 Act. As of July 31, 2017, the Fund’s investment in each was 0.00%, 0.26% and 0.26% of the Fund’s net assets, respectively.

During the last fiscal year, the First Trust Multi Cap Value AlphaDEX^® Fund held securities of Bank of America Corporation, The Goldman Sachs Group, Inc. and Citigroup Inc., each a regular broker or dealer of the Fund as defined in Rule 10b-1 under the 1940 Act. As of July 31, 2017, the Fund’s investment in each was 0.00%, 0.00% and 0.36% of the Fund’s net assets, respectively.

Custodian, Distributor, Transfer Agent, Fund Accounting Agent,
Index Providers and Exchanges

Administrator. The Bank of New York Mellon (“BNYM”), 101 Barclay Street, New York, New York 10286, serves as the Funds’ administrator and provides the Funds with accounting services pursuant to a fund administration and accounting agreement (the “Administration and Accounting Agreement”). Under the Administration and Accounting Agreement, BNYM is obligated, on a continuous basis, to provide such administrative services as the Board reasonably deems necessary for the

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proper administration of the Trust and the Funds. BNYM generally will assist in many aspects of the Trust’s and the Funds’ operations, including accounting, bookkeeping and record keeping services (including, without limitation, the maintenance of such books and records as are required under the 1940 Act and the rules thereunder, except as maintained by other service providers), assist in preparing reports to shareholders or investors, prepare and file tax returns, supply financial information and supporting data for reports to and filings with the SEC and various state Blue Sky authorities and supply supporting documentation for meetings of the Board.

Custodian. Pursuant to a custody agreement, BNYM serves as the custodian of each Fund’s assets. The custodian holds and administers the assets in a Fund’s portfolios.

Transfer Agent. Pursuant to a transfer agency and service agreement, BNYM provides the Trust with transfer agency services, which includes Creation Unit Aggregation order processing.

The Trust, on behalf of the Funds, has agreed to indemnify BNYM for certain liabilities, including certain liabilities arising under the federal securities laws, unless such loss or liability results from negligence or willful misconduct in the performance of its duties.

As compensation for these services, BNYM is paid a fee based on each Fund’s total average daily net assets. BNYM also is entitled to certain out-of-pocket expenses for the services described above. The following table sets forth the amounts paid by each Expense Cap Fund to BNYM for the specified periods. The Unitary Fee Funds have not paid have not paid any fees to BNYM for the services provided as the Advisor has assumed responsibility for payment of these fees as part of the unitary management fee.

Fund Administration and Accounting
Fund	Fiscal Year Ended July 31,
Fund	2017	2016	2015
First Trust Consumer Discretionary AlphaDEX^® Fund	$404,460	$921,207	$851,936
First Trust Consumer Staples AlphaDEX^® Fund	$551,473	$1,106,487	$962,810
First Trust Energy AlphaDEX^® Fund	$517,104	$311,239	$237,034
First Trust Financials AlphaDEX^® Fund	$464,469	$412,505	$429,237
First Trust Health Care AlphaDEX^® Fund	$496,495	$1,016,903	$1,239,071
First Trust Industrials/Producer Durables AlphaDEX^® Fund	$487,644	$106,058	$319,345
First Trust Materials AlphaDEX^® Fund	$151,710	$70,577	$159,275
First Trust Technology AlphaDEX^® Fund	$292,628	$289,115	$448,408
First Trust Utilities AlphaDEX^® Fund	$701,566	$405,635	$151,097
First Trust Large Cap Core AlphaDEX^® Fund	$689,046	$728,144	$759,588
First Trust Large Cap Growth AlphaDEX^® Fund	$304,775	$320,933	$254,434
First Trust Large Cap Value AlphaDEX^® Fund	$466,172	$439,296	$590,697
First Trust Mid Cap Core AlphaDEX^® Fund	$339,186	$361,841	$462,102
First Trust Multi Cap Growth AlphaDEX^® Fund	$33,091	$55,215	$49,102
First Trust Multi Cap Value AlphaDEX^® Fund	$38,861	$71,850	$110,101
First Trust Small Cap Core AlphaDEX^® Fund	$236,599	$252,652	$320,537

Distributor. First Trust Portfolios L.P., an affiliate of First Trust, is the distributor and principal underwriter of the shares of the Funds. Its principal address is 120 East Liberty Drive, Suite 400, Wheaton, Illinois 60187. The Distributor has entered into a Distribution Agreement with the Trust pursuant to which it distributes Fund shares. Shares are continuously offered for sale by Funds through the Distributor only in Creation Unit Aggregations, as described in the Prospectus under the heading "Creation and Redemption of Creation Aggregations."

For the fiscal years ended July 31, 2015, 2016 and 2017, there were no underwriting commissions with respect to the sale of Fund shares and FTP did not receive compensation on redemptions for the Funds for those periods.

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12b-1 Plan. The Trust has adopted a Plan of Distribution pursuant to Rule 12b-1 under the 1940 Act (the “Plan”) pursuant to which the Funds may reimburse the Distributor up to a maximum annual rate of 0.25% of their average daily net assets.

Under the Plan and as required by Rule 12b-1, the Trustees will receive and review after the end of each calendar quarter a written report provided by the Distributor of the amounts expended under the Plan and the purpose for which such expenditures were made. With the exception of the Distributor and its affiliates, no “interested person” of the Trust (as that term is defined in the 1940 Act) and no Trustee of the Trust has a direct or indirect financial interest in the operation of the Plan or any related agreement.

No fee is currently paid by the Funds under the Plan and pursuant to a contractual agreement, the Funds will not pay 12b-1 fees any time before December 31, 2018.

Aggregations. Fund shares in less than Creation Unit Aggregations are not distributed by the Distributor. The Distributor will deliver the Prospectus and, upon request, this SAI to persons purchasing Creation Unit Aggregations and will maintain records of both orders placed with it and confirmations of acceptance furnished by it. The Distributor is a broker-dealer registered under the 1934 Act and a member of the Financial Industry Regulatory Authority (“FINRA”).

The Distribution Agreement provides that it may be terminated at any time, without the payment of any penalty, on at least 60 days’ written notice by the Trust to the Distributor (i) by vote of a majority of the Independent Trustees or (ii) by vote of a majority of the outstanding voting securities (as defined in the 1940 Act) of the Funds. The Distribution Agreement will terminate automatically in the event of its assignment (as defined in the 1940 Act).

The Distributor has entered into agreements with securities dealers ("Soliciting Dealers") who will solicit purchases of Creation Unit Aggregations of Fund shares. Such Soliciting Dealers may also be Participating Parties (as defined in "Procedures for Creation of Creation Unit Aggregations" below) and DTC Participants (as defined in "DTC Acts as Securities Depository for Fund Shares" below)

Index Providers. The Index that each of the AlphaDEX^® Sector Funds seeks to track is compiled by IDI. The Index that each of the AlphaDEX^® Style Funds seeks to track is compiled by Nasdaq, Inc.

The Index Providers are not affiliated with the Funds, FTP or First Trust. Each Fund is entitled to use the applicable Index pursuant to a Sub-License Agreement and Product License Agreement.

AlphaDEX^® Sector Funds. Each of the StrataQuant^® Series Indices is a registered trademark of IDI and is licensed for use by FTP. FTP sublicenses the StrataQuant^® Series Indices to the AlphaDEX^® Sector Funds and to First Trust. The AlphaDEX^® Sector Funds are not sponsored, endorsed, sold or promoted by IDI. IDI makes no representation or warranty, express or implied, to the owners of the AlphaDEX^® Sector Funds or any member of the public regarding the advisability of investing in securities generally or the AlphaDEX^® Sector Funds particularly or as to the result to be obtained by any person from the use of the StrataQuant^® Series in connection with the trading of the AlphaDEX^® Sector Funds.

The AlphaDEX^® Sector Funds are not sponsored, endorsed, sold or promoted by Frank Russell Company (“Underlying Index Provider”) or by the Index Provider. Neither Underlying Index Provider nor Index Provider makes any representation or warranty, express or implied, to the owners of the AlphaDEX^® Sector Funds or any member of the public regarding the advisability of investing in securities generally or in the AlphaDEX^® Sector Funds particularly or the ability of any of the StrataQuant^® Series to track general stock market performance or a segment of the same. Index Provider’s publication of the StrataQuant^® Series in no way suggests or implies an opinion by Underlying Index Provider or by Index Provider as to the advisability of investment in any or all of the securities upon which the StrataQuant^® Series is based. Index Provider’s only relationship to FTP is the licensing of certain trademarks and trade names of Index Provider and of the AlphaDEX^® Series, which is determined, composed and calculated by Index Provider without regard to FTP, First Trust or the AlphaDEX^® Sector Funds. Underlying Index Provider and Index Provider are not responsible for and have not reviewed the AlphaDEX^® Sector Funds nor any associated

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literature or publications and make no representation or warranty express or implied as to their accuracy or completeness, or otherwise. Underlying Index Provider reserves the right, at any time and without notice, to alter, amend, terminate or in any way change the StrataQuant^® Series. Underlying Index Provider and Index Provider have no obligation or liability in connection with the administration, marketing or trading of the AlphaDEX^® Sector Funds.

AlphaDEX^® Style Funds. FTP has licensed to Nasdaq, Inc., free of charge, the right to use certain intellectual property owned by FTP, including the AlphaDEX^® trademark and the AlphaDEX^® stock selection method, in connection with Nasdaq Inc.’s creation of certain Indices.

Notwithstanding such license, Nasdaq, Inc. is solely responsible for the creation, compilation and administration of such Indices and has the exclusive right to determine the stocks included in the Indices and the Indices’ methodologies.

The Funds are not sponsored, endorsed, sold or promoted by Nasdaq, Inc. or its affiliates (Nasdaq, Inc., with its affiliates, are referred to as the “Corporations”). The Corporations have not passed on the legality or suitability of, or the accuracy or adequacy of descriptions and disclosures relating to, the Funds. The Corporations make no representation or warranty, express or implied to the owners of the Funds or any member of the public regarding the advisability of investing in securities generally or in the Funds particularly, or the ability of the Indices to track general stock market performance. The Corporations’ only relationship to First Trust is in the licensing of “Nasdaq,” and the Indices’ registered trademarks, trade names and service marks of the Corporations and the use of the Indices which is determined, composed and calculated by Nasdaq, Inc. without regard to Licensee or the Funds. Nasdaq, Inc. has no obligation to take the needs of the Licensee or the owners of the Funds into consideration in determining, composing or calculating the Indices. The Corporations are not responsible for and have not participated in the determination of the timing of, prices at, or quantities of the Funds to be issued or in the determination or calculation of the equation by which a Fund is to be converted into cash. The Corporations have no liability in connection with the administration, marketing or trading of the Funds.

THE CORPORATIONS DO NOT GUARANTEE THE ACCURACY AND/OR UNINTERRUPTED CALCULATION OF THE INDICES OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS MAKE NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY LICENSEE, OWNERS OF THE FUNDS, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE INDICES OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS MAKE NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIM ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE INDICES OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL THE CORPORATIONS HAVE ANY LIABILITY FOR ANY LOST PROFITS OR SPECIAL, INCIDENTAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES, EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.

“ AlphaDEX^®” is a registered trademark of FTP. The Trust and First Trust on behalf of the Funds have been granted the right by FTP to use the name “AlphaDEX^®” for certain purposes.

Exchanges. The only relationship that NYSE Arca has with First Trust or the Distributor of the Funds in connection with the Funds is that ICE Data Indices, LLC, an affiliate of NYSE Arca, is the Index Provider for the AlphaDEX^® Sector Funds and NYSE Arca lists the shares of the Funds pursuant to its listing agreement with the Trust. NYSE Arca is not responsible for and has not participated in the determination of pricing or the timing of the issuance or sale of the shares of the Funds or in the determination or calculation of the asset value of the Funds. NYSE Arca has no obligation or liability in connection with the administration, marketing or trading of the Funds.

The only relationship that Nasdaq or Nasdaq, Inc. has with First Trust or the Distributor of the Funds in connection with the Funds is that Nasdaq, Inc. is the Index Provider for the AlphaDEX^® Style Funds and Nasdaq lists the shares of the Funds pursuant to its listing agreement with the Trust. Nasdaq and Nasdaq, Inc. are not responsible for and have not participated

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in the determination of pricing or the timing of the issuance or sale of the shares of the Funds or in the determination or calculation of the net asset value of the Funds. Nasdaq and Nasdaq, Inc. have no obligation or liability in connection with the administration, marketing or trading of the Funds.

Additional Payments to Financial Intermediaries

First Trust or its affiliates may from time to time make payments, out of their own resources, to certain financial intermediaries that sell shares of First Trust Funds to promote the sales and retention of Fund shares by those firms and their customers. The amounts of these payments vary by intermediary. The level of payments that First Trust is willing to provide to a particular intermediary may be affected by, among other factors, (i) the firm’s total assets or Fund shares held in and recent net investments into First Trust Funds, (ii) the value of the assets invested in the First Trust Funds by the intermediary’s customers, (iii) redemption rates, (iv) its ability to attract and retain assets, (v) the intermediary’s reputation in the industry, (vi) the level and/or type of marketing assistance and educational activities provided by the intermediary, (vii) the firm’s level of participation in First Trust Funds’ sales and marketing programs, (viii) the firm’s compensation program for its registered representatives who sell Fund shares and provide services to Fund shareholders, and (ix) the asset class of the First Trust Funds for which these payments are provided. Such payments are generally asset-based but also may include the payment of a lump sum.

First Trust may also make payments to certain intermediaries for certain administrative services and shareholder processing services, including record keeping and sub-accounting of shareholder accounts pursuant to a sub-transfer agency, omnibus account service or sub-accounting agreement. All fees payable by First Trust under this category of services may be charged back to a Fund, subject to approval by the Board.

First Trust and/or its affiliates may make payments, out of its own assets, to those firms as compensation and/or reimbursement for marketing support and/or program servicing to selected intermediaries that are registered as holders or dealers of record for accounts invested in one or more of the First Trust Funds or that make First Trust Fund shares available through certain selected Fund no-transaction fee institutional platforms and fee-based wrap programs at certain financial intermediaries. Program servicing payments typically apply to employee benefit plans, such as retirement plans, or fee-based advisory programs but may apply to retail sales and assets in certain situations. The payments are based on such factors as the type and nature of services or support furnished by the intermediary and are generally asset based. Services for which an intermediary receives marketing support payments may include, but are not limited to, business planning assistance, advertising, educating the intermediary’s personnel about First Trust Funds in connection with shareholder financial planning needs, placement on the intermediary’s preferred or recommended fund list, and access to sales meetings, sales representatives and management representatives of the intermediary. In addition, intermediaries may be compensated for enabling representatives of First Trust and/or its affiliates to participate in and/or present at conferences or seminars, sales or training programs for invited registered representatives and other employees, client and investor events and other events sponsored by the intermediary. Services for which an intermediary receives program servicing payments typically include, but are not limited to, record keeping, reporting or transaction processing and shareholder communications and other account administration services, but may also include services rendered in connection with Fund/investment selection and monitoring, employee enrollment and education, plan balance rollover or separation, or other similar services. An intermediary may perform program services itself or may arrange with a third party to perform program services. These payments are in addition to the service fee and any applicable omnibus sub-accounting fees paid to these firms with respect to these services by the First Trust Funds out of Fund assets.

From time to time, First Trust and/or its affiliates, at its expense, may provide other compensation to intermediaries that sell or arrange for the sale of shares of the First Trust Funds, which may be in addition to marketing support and program servicing payments described above. For example, First Trust and/or its affiliates may: (i) compensate intermediaries for National Securities Clearing Corporation networking system services (e.g., shareholder communication, account statements, trade confirmations and tax reporting) on an asset-based or per-account basis; (ii) compensate intermediaries for providing Fund shareholder trading information; (iii) make one-time or periodic payments to reimburse selected intermediaries for items such as ticket charges (i.e., fees that an intermediary charges its representatives for effecting transactions in Fund shares) or exchange order, operational charges (e.g., fees that an intermediary charges for establishing a Fund on its trading system), and literature printing and/or distribution costs; (iv) at the direction of a retirement plan’s sponsor, reimburse or pay direct expenses of an employee benefit plan that would otherwise be payable by the plan; and (v) provide payments to broker-dealers to help defray their technology or infrastructure costs.

When not provided for in a marketing support or program servicing agreement, First Trust and/or its affiliates may also pay intermediaries for enabling First Trust and/or its affiliates to participate in and/or present at conferences or seminars,

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sales or training programs for invited registered representatives and other intermediary employees, client and investor events and other intermediary-sponsored events, and for travel expenses, including lodging incurred by registered representatives and other employees in connection with prospecting, asset retention and due diligence trips. These payments may vary depending upon the nature of the event. First Trust and/or its affiliates make payments for such events as it deems appropriate, subject to its internal guidelines and applicable law.

First Trust and/or its affiliates occasionally sponsor due diligence meetings for registered representatives during which they receive updates on various First Trust Funds and are afforded the opportunity to speak with portfolio managers. Although invitations to these meetings are not conditioned on selling a specific number of shares, those who have shown an interest in First Trust Funds are more likely to be considered. To the extent permitted by their firm’s policies and procedures, all or a portion of registered representatives’ expenses in attending these meetings may be covered by First Trust and/or its affiliates.

The amounts of payments referenced above made by First Trust and/or its affiliates could be significant and may create an incentive for an intermediary or its representatives to recommend or offer shares of the First Trust Funds to its customers. The intermediary may elevate the prominence or profile of the First Trust Funds within the intermediary’s organization by, for example, placing the First Trust Funds on a list of preferred or recommended funds and/or granting First Trust and/or its affiliates preferential or enhanced opportunities to promote the First Trust Funds in various ways within the intermediary’s organization. These payments are made pursuant to negotiated agreements with intermediaries. The payments do not change the price paid by investors for the purchase of a share or the amount a Fund will receive as proceeds from such sales. Furthermore, many of these payments are not reflected in the fees and expenses listed in the fee table section of a Fund's Prospectus because they are not paid by the Fund. The types of payments described herein are not mutually exclusive, and a single intermediary may receive some or all types of payments as described.

Other compensation may be offered to the extent not prohibited by state laws or any self-regulatory agency, such as FINRA. Investors can ask their intermediaries for information about any payments they receive from First Trust and/or its affiliates and the services it provides for those payments. Investors may wish to take intermediary payment arrangements into account when considering and evaluating any recommendations relating to Fund shares.

Additional Information

Book Entry Only System. The following information supplements and should be read in conjunction with the Prospectus.

DTC Acts as Securities Depository for Fund Shares. Shares of the Funds are represented by securities registered in the name of The Depository Trust Company (“DTC”) or its nominee, Cede & Co., and deposited with, or on behalf of, DTC.

DTC, a limited-purpose trust company, was created to hold securities of its participants (the “DTC Participants”) and to facilitate the clearance and settlement of securities transactions among the DTC Participants in such securities through electronic book-entry changes in accounts of the DTC Participants, thereby eliminating the need for physical movement of securities certificates. DTC Participants include securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations, some of whom (and/or their representatives) own DTC. More specifically, DTC is owned by a number of its DTC Participants and by the New York Stock Exchange and FINRA. Access to the DTC system is also available to others such as banks, brokers, dealers and trust companies that clear through or maintain a custodial relationship with a DTC Participant, either directly or indirectly (the “Indirect Participants”).

Beneficial ownership of shares is limited to DTC Participants, Indirect Participants and persons holding interests through DTC Participants and Indirect Participants. Ownership of beneficial interests in shares (owners of such beneficial interests are referred to herein as “Beneficial Owners”) is shown on, and the transfer of ownership is effected only through, records maintained by DTC (with respect to DTC Participants) and on the records of DTC Participants (with respect to Indirect Participants and Beneficial Owners that are not DTC Participants). Beneficial Owners will receive from or through the DTC Participant a written confirmation relating to their purchase and sale of shares.

Conveyance of all notices, statements and other communications to Beneficial Owners is effected as follows. Pursuant to a letter agreement between DTC and the Trust, DTC is required to make available to the Trust upon request and for a fee to be charged to the Trust a listing of the shares of the Funds held by each DTC Participant. The Trust shall inquire of each such DTC Participant as to the number of Beneficial Owners holding shares, directly or indirectly, through such DTC Participant. The Trust shall provide each such DTC Participant with copies of such notice, statement or other communication, in such form, number and at such place as such DTC Participant may reasonably request, in order that such notice, statement or communication may be transmitted by such DTC Participant, directly or indirectly, to such Beneficial Owners. In addition, the Trust shall pay

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to each such DTC Participants a fair and reasonable amount as reimbursement for the expenses attendant to such transmittal, all subject to applicable statutory and regulatory requirements.

Fund distributions shall be made to DTC or its nominee, as the registered holder of all Fund shares. DTC or its nominee, upon receipt of any such distributions, shall immediately credit DTC Participants’ accounts with payments in amounts proportionate to their respective beneficial interests in shares of the Funds as shown on the records of DTC or its nominee. Payments by DTC Participants to Indirect Participants and Beneficial Owners of shares held through such DTC Participants will be governed by standing instructions and customary practices, as is now the case with securities held for the accounts of customers in bearer form or registered in a “street name,” and will be the responsibility of such DTC Participants.

The Trust has no responsibility or liability for any aspect of the records relating to or notices to Beneficial Owners, or payments made on account of beneficial ownership interests in such shares, or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests, or for any other aspect of the relationship between DTC and the DTC Participants or the relationship between such DTC Participants and the Indirect Participants and Beneficial Owners owning through such DTC Participants.

DTC may decide to discontinue providing its service with respect to shares at any time by giving reasonable notice to the Trust and discharging its responsibilities with respect thereto under applicable law. Under such circumstances, the Trust shall take action to find a replacement for DTC to perform its functions at a comparable cost.

Policy Regarding Investment in Other Investment Companies. The Funds will not rely on Sections 12(d)(1)(F) or 12(d)(1)(G) of the 1940 Act to invest in other investment companies.

Information for Investors in the European Economic Area

In relation to each Member State of the European Economic Area (“EEA”) which has implemented the EU Directive on Alternative Investment Fund Managers (Directive (2011/61/EU)) (the “AIFM Directive”), the Prospectus, and any summary Prospectus or SAI relating to the Funds, may only be distributed and shares may only be offered or placed in a Member State to the extent that: (1) the Funds are permitted to be marketed to professional investors in the relevant member state in accordance with the AIFM Directive (as implemented into the local law/regulations of the relevant Member State); or otherwise (2) the Prospectus and SAI may be lawfully distributed and the shares may lawfully be offered or placed in that Member State (including at the initiative of the investor).

In relation to each Member State of the EEA which, at the date of this SAI, has not implemented the AIFM Directive, the Prospectus and the SAI may only be distributed and shares may only be offered or placed to the extent that this SAI may be lawfully distributed and the shares may lawfully be offered or placed in that Member State (including at the initiative of the investor).

In addition, the following restrictions apply to the distribution of the Prospectus and SAI in the following Member States:

Information for Investors in the United Kingdom

Subject always to the foregoing notice in respect of the EEA, this Document is being issued in the United Kingdom by First Trust Global Portfolios Limited (which is authorised and regulated by the Financial Conduct Authority (the “FCA”)) only to and/or is directed only at persons who are professional clients or eligible counterparties for the purposes of the FCA’s Conduct of Business Sourcebook.

Background. The AIFM Directive is a European Union (“EU”) directive which regulates the management and marketing of funds within the EEA. The AIFM Directive distinguishes between EU and non-EU funds and EU and non-EU fund managers and different obligations apply under the AIFM Directive depending on where the fund is based and where the manager is based. Certain disclosure, transparency and reporting obligations are imposed on non-EU fund managers wishing to market funds to investors in the EEA. There are additional requirements imposed on EU fund managers, which do not currently apply to First Trust.

To the extent not already disclosed to you prior to your investment in the Funds, the purpose of this section of the SAI is to satisfy the disclosures which are required to be provided to you under the AIFM Directive.

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Overview of the Funds and the Service Providers. The Funds are non-EU AIFs (“AIF” means an alternative investment fund for the purposes of the AIFM Directive).

First Trust Advisors L.P. (“First Trust”) is the AIFM of the Funds (“AIFM” means an alternative investment fund manager for the purposes of the AIFM Directive). First Trust is a non-EU AIFM.

The Trust has entered into agreements with various service providers including First Trust (as the Investment Advisor), the Custodian, Distributor, Transfer Agent, Administrator, index providers and the exchanges where each Fund is listed in respect of the Funds. Further details regarding the duties and roles of such service providers can be found in the Prospectus and the SAI for the Funds.

In addition to the parties listed above, the Trust has appointed (i) Chapman and Cutler LLP as its legal counsel which advises it on US legal matters; (ii) Deloitte & Touche LLP as the Funds’ auditors who undertake to audit the Funds’ financial statements in accordance with the standards of the Public Company Accounting Oversight Board (PCAOB) (United States); and (iii) CT Corporation System as the Funds’ registered agent.

First Trust is not required to ensure that the Funds appoint, and the Funds have not appointed, a depositary for purposes of the AIFM Directive (a depositary in the context of the AIFM Directive, has a specific role and function. The appointment of such depositary is not required for non-EU AIFs with non-EU AIFMs). As such investors in the Funds have no rights as against any person in respect of the duties or liabilities of a depositary under the AIFM Directive.

Investors’ Contractual Rights. In respect of each of the service providers to the Funds, investors who purchase shares in the Funds in the secondary market have no direct rights of action against the service providers, as a matter of contract law or under the establishment documents of the Trust. The proper plaintiff in an action in respect of which a wrongdoing is alleged to have been committed against the Funds or the Trust by a service provider is, prima facie, the Trust itself. An investor may bring a derivative or similar action or proceeding (“Derivative Action”) against the Trust or a Fund to recover a judgment in its favor in accordance with the provisions of the Declaration. Accordingly, investors would have no direct contractual right against the relevant service provider for breach of the agreement governing its appointment by the Trust. The foregoing disclosure is without prejudice to such other rights of action (for example, under the securities laws, tort law or in respect of breach of fiduciary duty) which might in certain situations be separately available to investors.

Investment in the Funds. Investors will buy shares in the Funds in secondary market transactions through brokers and will not subscribe for shares from the Trust directly. As such, there is no direct contractual relationship between the Funds and the investor in connection with the purchase or sale of shares. While the Funds are established under Massachusetts law and Massachusetts law does facilitate the enforcement of judgments obtained in foreign jurisdictions, investors who buy shares on the secondary market will have no direct contractual right of action against the Funds. Investors should refer to “How to Buy and Sell Shares” in the main body of the Prospectus for more detail. The foregoing disclosure is without prejudice to such other rights of action (for example, under the securities laws, tort law or in respect of breach of fiduciary duty) which might in certain situations be separately available to investors.

Redemption from the Funds. Non-US investors will sell shares in secondary market transactions through brokers and will not redeem shares from the Funds directly. Shares can be sold throughout the trading day like other publically traded shares. Investors should refer to “How to Buy and Sell Shares” in the main body of the Prospectus for more detail.

Liquidity Risk Management. Investors should note that while First Trust is not required to implement liquidity management arrangements in accordance with the AIFM Directive in respect of the Funds, the Funds are subject to the liquidity limitations established by the SEC. The Trustees have delegated to First Trust the day-to-day determination of illiquidity of equity and fixed income securities as described under “Illiquid Securities” in the SAI.

Treatment of Investors. The Trust and the AIFM do not offer any investors preferential treatment or the right to obtain preferential treatment. Whilst the Trust does not take specific steps to ensure the fair treatment of investors, under the 1940 Act the Trustees are required to monitor how a Fund operates and oversee matters where the interests of the Fund and its shareholders may differ from those of its investment adviser.

First Trust is registered as an investment adviser with the SEC, and is subject to regulation and oversight designed to protect shareholders. Under the Investment Advisers Act of 1940, First Trust is a fiduciary to its clients, the Funds, and is therefore required to act in the best interests of clients and to place the interests of clients before its own.

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Information Regarding the use of Leverage and Collateral. The AIFM Directive requires disclosure of certain information relating to leverage, collateral and asset re-use arrangements. The Funds may obtain leverage through the use of derivatives and other non-fully funded investments such as reverse repurchase agreements, firm commitment agreements, standby commitment agreements if, and to the extent that, such transactions are (i) disclosed in the Funds’ Prospectus and SAI and (ii) deemed appropriate investments by First Trust. These leveraged trading practices generally have not been prohibited by the SEC, though the SEC has published guidance on the manner in which the Funds may cover their leveraged trading practices to limit leverage and avoid the need to address the leverage concerns in Section 18 of the 1940 Act, which severely restricts how the Funds may use leverage. All arrangements entered into by First Trust on behalf of the Funds which result in leverage follow the parameter of the guidance published by the SEC.

As a non-EU AIFM, First Trust is not obliged to set a maximum permitted level of leverage which it may employ in its management of the Funds. The total amount of leverage employed by the Funds is provided at http://www.ftglobalportfolios.com.

Investors should refer to the “Investment Objectives and Policies” and “Investment Strategies” section of the SAI for more details on the use and risk of leverage by the Funds.

Shareholder Voting Rights. The Declaration requires a shareholder vote only on those matters where the 1940 Act requires a vote of shareholders and otherwise permits the Trustees to take actions without seeking the consent of shareholders. The Funds’ fundamental policies, as described in the “Investment Objectives and Policies” section of the SAI, may not be changed without approval of the holders of a majority of the outstanding voting securities (as such term is defined in the 1940 Act) of a Fund. The 1940 Act defines a majority vote as the vote of the lesser of (i) 67% or more of the voting securities represented at a meeting at which more than 50% of the outstanding securities are represented; or (ii) more than 50% of the outstanding voting securities. Please refer to the SAI for further information.

Net Asset Value. The latest NAV of the Funds, and the latest NAV per share of each class of share of the Funds, is available online at: http://www.ftglobalportfolios.com and online stock quote services. Generally investors will buy and sell shares of the Funds in secondary market transactions through brokers. Shares of the Funds will therefore be available at the relevant market price rather than NAV.

The historical performance of the Funds since inception is available online at: http://www.ftglobalportfolios.com.

Accounts. Under the AIFM Directive, First Trust is required to make available the annual report of the Funds that it markets in the EEA. This must be prepared by no later than 6 months following the end of the financial year and contain certain specific content requirements set out in the AIFM Directive. The Funds’ financial year ends as at 31 July and so the first annual report must be produced by First Trust no later than 31 January 2016. Once the annual report has been produced, it will be made available to investors in the manner as set out in the Prospectus.

Professional Liability Requirements/Delegation by the AIFM/Valuation. As a non-EU AIFM, First Trust is not subject to certain EU requirements relating to (i) the cover of professional liability risk by holding either additional own funds or appropriate professional liability insurance; (ii) permitted delegation and the management and disclosure of conflicts of interest relating to any such delegation; and (iii) valuation as set out in Article 19 of the AIFM Directive. As such, no disclosures for the purposes of the AIFM Directive have been made. Notwithstanding this, First Trust and the Funds continue to comply with their requirements under US law.

Periodic Disclosure Obligations. The following information will be disclosed to Fund shareholders on a periodic basis by way of a posting being made on http://www.ftglobalportfolios.com:

•	the percentage of each Fund’s assets, if any, that are subject to special arrangements arising from their illiquid nature (including, but not limited to, deferrals of redemptions and suspensions);
•	the current risk profile of each Fund and the risk management systems employed by the AIFM to manage those risks; and
•	the total amount of leverage employed by each Fund, if any.

Whenever any new arrangements for managing the liquidity of the Funds are introduced including, but not limited to, any material changes to the liquidity management systems and procedures employed by First Trust, a disclosure to this effect will be uploaded on the Funds’ website. The Funds will ensure that a notice is uploaded on an expedited basis whenever deferrals or other similar special arrangements are activated or where redemptions of shares are suspended.

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A notice will be posted without undue delay whenever there is a change to a maximum level of leverage which may be employed on behalf of a Fund; and any changes are made to the right of re-use of collateral or any changes to any guarantee granted under any leveraging arrangement.

Proxy Voting Policies and Procedures

The Trust has adopted a proxy voting policy that seeks to ensure that proxies for securities held by the Funds are voted consistently with the best interests of the Funds.

The Board has delegated to First Trust the proxy voting responsibilities for the Funds and has directed First Trust to vote proxies consistent with the Funds' best interests. First Trust has engaged the services of Institutional Shareholder Services Inc. (“ISS”), to make recommendations to First Trust on the voting of proxies relating to securities held by the Funds. If First Trust manages the assets of a company or its pension plan and any of First Trust’s clients hold any securities of that company, First Trust will vote proxies relating to such company’s securities in accordance with the ISS recommendations to avoid any conflict of interest.

First Trust has adopted the ISS Proxy Voting Guidelines. While these guidelines are not intended to be all-inclusive, they do provide guidance on First Trust’s general voting policies. The ISS Proxy Voting Guidelines are attached hereto as Exhibit B.

Information regarding how the Funds voted proxies (if any) relating to portfolio securities during the most recent 12-month period ended June 30 is available upon request and without charge on the Funds' website at http://www.ftportfolios.com, by calling (800) 621-1675 or by accessing the SEC’s website at http://www.sec.gov.

Quarterly Portfolio Schedule. The Trust is required to disclose, after its first and third fiscal quarters, the complete schedule of the Funds' portfolio holdings with the SEC on Form N-Q. Forms N-Q for the Trust are available on the SEC’s website at http://www.sec.gov. The Funds' Forms N-Q may also be reviewed and copied at the SEC’s Public Reference Room in Washington, D.C., and information on the operation of the Public Reference Room may be obtained by calling (800) SEC-0330. The Trust’s Forms N-Q are available without charge, upon request, by calling (800) 621-1675 or by writing to First Trust Portfolios L.P., 120 East Liberty Drive, Suite 400, Wheaton, Illinois 60187.

Policy Regarding Disclosure of Portfolio Holdings. The Trust has adopted a policy regarding the disclosure of information about each Fund’s portfolio holdings. The Board of Trustees must approve all material amendments to this policy. Each Fund’s portfolio holdings are publicly disseminated each day the Fund is open for business through financial reporting and news services, including publicly accessible Internet websites. In addition, a basket composition file, which includes the security names and share quantities to deliver in exchange for Fund shares, together with estimates and actual cash components, is publicly disseminated each day the New York Stock Exchange is open for trading via the National Securities Clearing Corporation (“NSCC”). The basket represents one Creation Unit of a Fund. Each Fund’s portfolio holdings are also available on the Funds' website at http://www.ftportfolios.com. The Trust, First Trust, FTP and BNYM will not disseminate non-public information concerning the Trust.

Codes of Ethics. In order to mitigate the possibility that the Funds will be adversely affected by personal trading, the Trust, First Trust and the Distributor have adopted Codes of Ethics under Rule 17j-1 of the 1940 Act. These Codes of Ethics contain policies restricting securities trading in personal accounts of the officers, Trustees and others who normally come into possession of information on portfolio transactions. Personnel subject to the Codes of Ethics may invest in securities that may be purchased or held by the Funds; however, the Codes of Ethics require that each transaction in such securities be reviewed by the CCO or his or her designee. These Codes of Ethics are on public file with, and are available from, the SEC.

Creation and Redemption of Creation Unit Aggregations

Creation. The Trust issues and sells shares of the Funds only in Creation Unit Aggregations on a continuous basis through the Distributor, without a sales load, at their net asset value next determined after receipt, on any Business Day (as defined below), of an order in proper form.

A “Business Day” is any day on which the New York Stock Exchange is open for business. As of the date of this SAI, the New York Stock Exchange observes the following holidays: New Year’s Day, Martin Luther King, Jr. Day, Presidents’ Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

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Deposit of Securities and Deposit or Delivery of Cash. The consideration for purchase of Creation Unit Aggregations of a Fund may consist of (i) cash in lieu of all or a portion of the Deposit Securities, as defined below, and/or (ii) a designated portfolio of equity securities determined by First Trust, the “Deposit Securities”, per each Creation Unit Aggregation constituting a substantial replication of the stocks included in the underlying index and generally an amount of cash, the “Cash Component”, computed as described below. Together, the Deposit Securities and the Cash Component (including the cash in lieu amount) constitute the “Fund Deposit,” which represents the minimum initial and subsequent investment amount for a Creation Unit Aggregation of a Fund.

The Cash Component is sometimes also referred to as the Balancing Amount. The Cash Component serves the function of compensating for any differences between the net asset value per Creation Unit Aggregation and the Deposit Amount (as defined below). The Cash Component is an amount equal to the difference between the net asset value of Fund shares (per Creation Unit Aggregation) and the “Deposit Amount”, an amount equal to the market value of the Deposit Securities and/or cash in lieu of all or a portion of the Deposit Securities. If the Cash Component is a positive number (i.e., the net asset value per Creation Unit Aggregation exceeds the Deposit Amount), the creator will deliver the Cash Component. If the Cash Component is a negative number (i.e., the net asset value per Creation Unit Aggregation is less than the Deposit Amount), the creator will receive the Cash Component.

The Custodian, through the NSCC (discussed below), makes available on each Business Day, prior to the opening of business of the New York Stock Exchange (currently 9:30 a.m., Eastern Time), the list of the names and the required number of shares of each Deposit Security to be included in the current Fund Deposit (based on information at the end of the previous Business Day) for a Fund. From time to time, the Custodian may update this list during the trading day if a correction is appropriate.

Such Fund Deposit is applicable, subject to any adjustments as described below, in order to effect creations of Creation Unit Aggregations of a Fund until such time as the next-announced composition of the Deposit Securities is made available.

The identity and number of shares of the Deposit Securities required for a Fund Deposit for a Fund change as rebalancing adjustments and corporate action events are reflected within a Fund from time to time by First Trust with a view to the investment objective of the Fund. The composition of the Deposit Securities may also change in response to adjustments to the weighting or composition of the component stocks of the underlying index. In addition, the Trust reserves the right to permit or require the substitution of an amount of cash (i.e., a “cash in lieu” amount) to be added to the Cash Component to replace any Deposit Security that may not be available, may not be available in sufficient quantity for delivery or that may not be eligible for transfer through the systems of DTC or the Clearing Process (discussed below), or which might not be eligible for trading by an Authorized Participant (as defined below) or the investor for which it is acting or other relevant reason. Brokerage commissions incurred in connection with the acquisition of Deposit Securities not eligible for transfer through the systems of DTC and hence not eligible for transfer through the Clearing Process (discussed below) will be at the expense of a Fund and will affect the value of all shares; but First Trust, subject to the approval of the Board of Trustees, may adjust the transaction fee within the parameters described above to protect ongoing shareholders. The adjustments described above will reflect changes known to First Trust on the date of announcement to be in effect by the time of delivery of the Fund Deposit, in the composition of the underlying index or resulting from certain corporate actions.

In addition to the list of names and numbers of securities constituting the current Deposit Securities of a Fund Deposit, the Custodian, through the NSCC, also makes available on each Business Day, the estimated Cash Component, effective through and including the previous Business Day, per outstanding Creation Unit Aggregation of a Fund.

Procedures for Creation of Creation Unit Aggregations. In order to be eligible to place orders with the Distributor and to create a Creation Unit Aggregation of a Fund, an entity must be (i) a “Participating Party,”i.e., a broker-dealer or other participant in the clearing process through the Continuous Net Settlement System of the NSCC (the “Clearing Process”), a clearing agency that is registered with the SEC; or (ii) a DTC Participant (see “Book Entry Only System” section), and, in each case, must have executed an agreement with the Distributor and transfer agent, with respect to creations and redemptions of Creation Unit Aggregations (“Participant Agreement”) (discussed below). A Participating Party and DTC Participant are collectively referred to as an “Authorized Participant.” Investors should contact the Distributor for the names of Authorized Participants that have signed a Participant Agreement. All Fund shares, however created, will be entered on the records of DTC in the name of Cede & Co. for the account of a DTC Participant.

All orders to create Creation Unit Aggregations, whether through the Clearing Process (through a Participating Party) or outside the Clearing Process (through a DTC Participant), must be received by the Distributor no later than the closing time of the regular trading session on the New York Stock Exchange (“Closing Time”) (ordinarily 4:00 p.m., Eastern Time) in each case on the date such order is placed in order for creation of Creation Unit Aggregations to be effected based on the net asset

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value of shares of the Funds as next determined on such date after receipt of the order in proper form. In the case of custom orders, the order must be received by the Distributor no later than 3:00 p.m., Eastern Time on the trade date. A custom order may be placed by an Authorized Participant in the event that the Trust permits or requires the substitution of an amount of cash to be added to the Cash Component to replace any Deposit Security which may not be available in sufficient quantity for delivery or which may not be eligible for trading by such Authorized Participant or the investor for which it is acting or other relevant reason. The date on which an order to create Creation Unit Aggregations (or an order to redeem Creation Unit Aggregations, as discussed below) is placed is referred to as the “Transmittal Date.” Orders must be transmitted by an Authorized Participant by telephone or other transmission method acceptable to the Distributor pursuant to procedures set forth in the applicable Participant Agreement, as described below (see the “Placement of Creation Orders Using Clearing Process” and the “Placement of Creation Orders Outside Clearing Process” sections). Severe economic or market disruptions or changes, or telephone or other communication failure may impede the ability to reach the Distributor or an Authorized Participant.

All orders from investors who are not Authorized Participants to create Creation Unit Aggregations shall be placed with an Authorized Participant in the form required by such Authorized Participant. In addition, the Authorized Participant may request the investor to make certain representations or enter into agreements with respect to the order, e.g., to provide for payments of cash, when required. Investors should be aware that their particular broker may not have executed a Participant Agreement and that, therefore, orders to create Creation Unit Aggregations of a Fund have to be placed by the investor’s broker through an Authorized Participant that has executed a Participant Agreement. In such cases there may be additional charges to such investor. At any given time, there may be only a limited number of broker-dealers that have executed a Participant Agreement. Those placing orders for Creation Unit Aggregations through the Clearing Process should afford sufficient time in order to permit proper submission of the order to the Distributor prior to the Closing Time on the Transmittal Date. Orders for Creation Unit Aggregations that are effected outside the Clearing Process are likely to require transmittal by the DTC Participant earlier on the Transmittal Date than orders effected using the Clearing Process. Those persons placing orders outside the Clearing Process should ascertain the deadlines applicable to DTC and the Federal Reserve Bank wire system by contacting the operations department of the broker or depository institution effectuating such transfer of Deposit Securities and Cash Component.

Placement of Creation Orders Using Clearing Process. The Clearing Process is the process of creating or redeeming Creation Unit Aggregations through the Continuous Net Settlement System of the NSCC. Fund Deposits made through the Clearing Process must be delivered through a Participating Party that has executed a Participant Agreement. The Participant Agreements generally authorize the Distributor to transmit through the Custodian to NSCC, on behalf of the Participating Party, such trade instructions as are necessary to effect the Participating Party’s creation order. Pursuant to such trade instructions to NSCC, the Participating Party agrees to deliver the requisite Deposit Securities and the Cash Component to the Trust, together with such additional information as may be required by the Distributor. An order to create Creation Unit Aggregations through the Clearing Process is deemed received by the Distributor on the Transmittal Date if (i) such order is received by the Distributor not later than the Closing Time on such Transmittal Date; and (ii) all other procedures set forth in the applicable Participant Agreement are properly followed.

Placement of Creation Orders Outside Clearing Process. Fund Deposits made outside the Clearing Process must be delivered through a DTC Participant that has executed a Participant Agreement pre-approved by First Trust and the Distributor. A DTC Participant who wishes to place an order creating Creation Unit Aggregations to be effected outside the Clearing Process does not need to be a Participating Party, but such orders must state that the DTC Participant is not using the Clearing Process and that the creation of Creation Unit Aggregations will instead be effected through a transfer of securities and cash directly through DTC. The Fund Deposit transfer must be ordered by the DTC Participant on the Transmittal Date in a timely fashion so as to ensure the delivery of the requisite number of Deposit Securities through DTC to the account of a Fund by no later than 11:00 a.m., Eastern Time, of the next Business Day immediately following the Transmittal Date.

All questions as to the number of Deposit Securities to be delivered, and the validity, form and eligibility (including time of receipt) for the deposit of any tendered securities, will be determined by the Trust, whose determination shall be final and binding. The amount of cash equal to the Cash Component must be transferred directly to the Custodian through the Federal Reserve Bank wire transfer system in a timely manner so as to be received by the Custodian no later than 2:00 p.m., Eastern Time, on the next Business Day immediately following such Transmittal Date. An order to create Creation Unit Aggregations outside the Clearing Process is deemed received by the Distributor on the Transmittal Date if (i) such order is received by the Distributor not later than the Closing Time on such Transmittal Date; and (ii) all other procedures set forth in the applicable Participant Agreement are properly followed. However, if the Custodian does not receive both the required Deposit Securities and the Cash Component by 11:00 a.m. and 2:00 p.m., respectively on the next Business Day immediately following the Transmittal Date, such order will be canceled. Upon written notice to the Distributor, such canceled order may be resubmitted the following Business Day using a Fund Deposit as newly constituted in order to reflect the then current Deposit Securities and Cash Component.

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Subject to the terms of the applicable Participant Agreement, the delivery of Creation Unit Aggregations so created is generally expected to occur no later than the second (2nd) Business Day following the day on which the purchase order is deemed received by the Distributor.

Additional transaction fees may be imposed with respect to transactions effected outside the Clearing Process (through a DTC Participant) and in the limited circumstances in which any cash can be used in lieu of Deposit Securities to create Creation Units. (See “Creation Transaction Fee” section below.)

Subject to the terms of the applicable Participant Agreement, Creation Unit Aggregations may be created in advance of receipt by the Trust of all or a portion of the applicable Deposit Securities as described below. In these circumstances, the initial deposit will have a value greater than the net asset value of the Fund shares on the date the order is placed in proper form since, in addition to available Deposit Securities, cash must be deposited in an amount equal to the sum of (i) the Cash Component, plus (ii) 115% of the market value of the undelivered Deposit Securities (the “Additional Cash Deposit”). The order shall be deemed to be received on the Business Day on which the order is placed provided that the order is placed in proper form prior to 4:00 p.m., Eastern Time, on such date, and federal funds in the appropriate amount are deposited with the Custodian by 11:00 a.m., Eastern Time, the following Business Day. If the order is not placed in proper form by 4:00 p.m. or federal funds in the appropriate amount are not received by 11:00 a.m. the next Business Day, then the order may be deemed to be canceled and the Authorized Participant shall be liable to the Funds for losses, if any, resulting therefrom. An additional amount of cash shall be required to be deposited with the Trust, pending delivery of the missing Deposit Securities to the extent necessary to maintain the Additional Cash Deposit with the Trust in an amount at least equal to 115% of the daily marked-to-market value of the missing Deposit Securities. To the extent that missing Deposit Securities are not received by the required time (e.g., by 1:00p.pm., Eastern Time, on the second Business Day following the day on which the purchase order is deemed received by the Distributor) or in the event a marked-to-market payment is not made within one Business Day following notification by the Distributor that such a payment is required, the Trust may use the cash on deposit to purchase the missing Deposit Securities. Authorized Participants will be liable to the Trust and the Funds for the costs incurred by the Trust in connection with any such purchases. These costs will be deemed to include the amount by which the actual purchase price of the Deposit Securities exceeds the market value of such Deposit Securities on the day the purchase order was deemed received by the Distributor plus the brokerage and related transaction costs associated with such purchases. The Trust will return any unused portion of the Additional Cash Deposit once all of the missing Deposit Securities have been properly received by the Custodian or purchased by the Trust and deposited into the Trust. In addition, a transaction fee, as listed below, will be charged in all cases. Subject to the terms if the applicable Participant Agreement, the delivery of Creation Unit Aggregations so created is generally expected to occur no later than the second Business Day following the day on which the purchase order is deemed received by the Distributor.

Acceptance of Orders for Creation Unit Aggregations. The Trust reserves the absolute right to reject a creation order transmitted to it by the Distributor with respect to a Fund if: (i) the order is not in proper form; (ii) the investor(s), upon obtaining the Fund shares ordered, would own 80% or more of the currently outstanding shares of the Fund; (iii) the Deposit Securities delivered are not as disseminated for that date by the Custodian, as described above; (iv) acceptance of the Deposit Securities would have certain adverse tax consequences to the Fund; (v) acceptance of the Fund Deposit would, in the opinion of counsel, be unlawful; (vi) acceptance of the Fund Deposit would otherwise, in the discretion of the Trust or First Trust, have an adverse effect on the Trust or the rights of Beneficial Owners; or (vii) circumstances outside the control of the Trust, the Custodian, the Distributor and First Trust make it for all practical purposes impossible to process creation orders. Examples of such circumstances include acts of God; public service or utility problems such as fires, floods, extreme weather conditions and power outages resulting in telephone, telecopy and computer failures; market conditions or activities causing trading halts; systems failures involving computer or other information systems affecting the Trust, First Trust, the Distributor, DTC, NSCC, the Custodian or sub-custodian or any other participant in the creation process, and similar extraordinary events. The Distributor shall notify a prospective creator of a Creation Unit and/or the Authorized Participant acting on behalf of such prospective creator of its rejection of the order of such person. The Trust, the Custodian, any sub-custodian and the Distributor are under no duty, however, to give notification of any defects or irregularities in the delivery of Fund Deposits, nor shall any of them incur any liability for the failure to give any such notification.

All questions as to the number of shares of each security in the Deposit Securities and the validity, form, eligibility, and acceptance for deposit of any securities to be delivered shall be determined by the Trust, and the Trust’s determination shall be final and binding.

Creation Transaction Fee. Purchasers of Creation Units will be required to pay a standard creation transaction fee (the “Creation Transaction Fee”), described below, payable to BNYM regardless of the number of Creation Units. An additional

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variable fee of up to three times the Creation Transaction Fee may be charged to approximate additional expenses incurred by a Fund with respect to transactions effected outside of the Clearing Process (i.e., through a DTC Participant) or to the extent that cash is used in lieu of securities to purchase Creation Units. Investors are responsible for the costs of transferring the securities constituting the Deposit Securities to the account of the Trust. The standard creation transaction fee is based on the number of different securities in a Creation Unit according to the fee schedule set forth below:

Number of Securities in a Creation Unit	Creation Transaction Fee
1–100	$500
101–499	$1,000
500 or more	$1,500

Redemption of Fund Shares in Creation Unit Aggregations. Fund shares may be redeemed only in Creation Unit Aggregations at their net asset value next determined after receipt of a redemption request in proper form by a Fund through the Transfer Agent and only on a Business Day. A Fund will not redeem shares in amounts less than Creation Unit Aggregations. Beneficial Owners must accumulate enough shares in the secondary market to constitute a Creation Unit Aggregation in order to have such shares redeemed by the Trust. There can be no assurance, however, that there will be sufficient liquidity in the public trading market at any time to permit assembly of a Creation Unit Aggregation. Investors should expect to incur brokerage and other costs in connection with assembling a sufficient number of Fund shares to constitute a redeemable Creation Unit Aggregation.

With respect to the Funds, the Custodian, through the NSCC, makes available prior to the opening of business on the New York Stock Exchange (currently 9:30 a.m., Eastern Time) on each Business Day, the identity of the securities (“Fund Securities”) that will be applicable (subject to possible amendment or correction) to redemption requests received in proper form (as described below) on that day. Fund Securities received on redemption may not be identical to Deposit Securities that are applicable to creations of Creation Unit Aggregations. From time to time, the Custodian may update this list during the trading day if a correction is appropriate.

Unless cash redemptions are available or specified for a Fund, the redemption proceeds for a Creation Unit Aggregation generally consist of Fund Securities—as announced on the Business Day of the request for redemption received in proper form—plus or minus cash in an amount equal to the difference between the net asset value of the Fund shares being redeemed, as next determined after a receipt of a request in proper form, and the value of the Fund Securities (the “Cash Redemption Amount”), less a redemption transaction fee as listed below. In the event that the Fund Securities have a value greater than the net asset value of the Fund shares, a compensating cash payment equal to the difference plus the applicable redemption transaction fee is required to be made by or through an Authorized Participant by the redeeming shareholder.

The right of redemption may be suspended or the date of payment postponed (i) for any period during which the New York Stock Exchange is closed (other than customary weekend and holiday closings); (ii) for any period during which trading on the New York Stock Exchange is suspended or restricted; (iii) for any period during which an emergency exists as a result of which disposal of the shares of a Fund or determination of the Fund’s net asset value is not reasonably practicable; or (iv) in such other circumstances as are permitted by the SEC.

Redemption Transaction Fee. A redemption transaction fee (the “Redemption Transaction Fee”) is imposed to offset transfer and other transaction costs that may be incurred by a Fund. An additional variable fee of up to three times the Redemption Transaction Fee may be charged to approximate additional expenses incurred by a Fund with respect to redemptions effected outside of the Clearing Process or to the extent that redemptions are for cash. A Fund reserves the right to effect redemptions in cash. A shareholder may request a cash redemption in lieu of securities; however, a Fund may, in its discretion, reject any such request. Investors will also bear the costs of transferring the Fund Securities from the Trust to their account or on their order. Investors who use the services of a broker or other such intermediary in addition to an Authorized Participant to effect a redemption of a Creation Unit Aggregation may be charged an additional fee for such services.

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The standard redemption transaction fee is based on the number of different securities in a Creation Unit according to the fee schedule set forth below:

Number of Securities in a Creation Unit	Redemption Transaction Fee
1–100	$500
101–499	$1,000
500 or more	$1,500

Placement of Redemption Orders Using Clearing Process. Orders to redeem Creation Unit Aggregations through the Clearing Process must be delivered through a Participating Party that has executed a Participant Agreement. An order to redeem Creation Unit Aggregations using the Clearing Process is deemed received by the Trust on the Transmittal Date if (i) such order is received by the Transfer Agent not later than 4:00 p.m., Eastern Time, on such Transmittal Date, and (ii) all other procedures set forth in the applicable Participant Agreement are properly followed; such order will be effected based on the net asset value of a Fund as next determined. An order to redeem Creation Unit Aggregations using the Clearing Process made in proper form but received by the Trust after 4:00 p.m., Eastern Time, will be deemed received on the next Business Day immediately following the Transmittal Date and will be effected at the net asset value next determined on such next Business Day. Subject to the terms if the applicable Participant Agreement, the requisite Fund Securities and the Cash Redemption Amount are generally expected to be transferred by the second Business Day following the date on which such request for redemption is deemed received.

Placement of Redemption Orders Outside Clearing Process. Orders to redeem Creation Unit Aggregations outside the Clearing Process must be delivered through a DTC Participant that has executed a Participant Agreement. A DTC Participant who wishes to place an order for redemption of Creation Unit Aggregations to be effected outside the Clearing Process does not need to be a Participating Party, but such orders must state that the DTC Participant is not using the Clearing Process and that redemption of Creation Unit Aggregations will instead be effected through transfer of Fund shares directly through DTC. An order to redeem Creation Unit Aggregations outside the Clearing Process is deemed received by the Trust on the Transmittal Date if (i) such order is received by the Transfer Agent not later than 4:00 p.m., Eastern Time on such Transmittal Date; (ii) such order is accompanied or followed by the requisite number of shares of the Fund, which delivery must be made through DTC to the Custodian no later than 11:00 a.m., Eastern Time, (for the Fund shares) on the next Business Day immediately following such Transmittal Date (the “DTC Cut-Off-Time”) and 2:00 p.m., Eastern Time for any Cash Component, if any owed to a Fund; and (iii) all other procedures set forth in the applicable Participant Agreement are properly followed. After the Trust has deemed an order for redemption outside the Clearing Process received, subject to the terms if the applicable Participant Agreement, the Trust will initiate procedures to transfer the requisite Fund Securities and the Cash Redemption Amount, if any, owed to the redeeming Beneficial Owner to the Authorized Participant on behalf of the redeeming Beneficial Owner generally by the second Business Day following the Transmittal Date on which such redemption order is deemed received by the Trust.

The calculation of the value of the Fund Securities and the Cash Redemption Amount to be delivered/received upon redemption will be made by the Custodian according to the procedures set forth in this SAI under “Determination of Net Asset Value” computed on the Business Day on which a redemption order is deemed received by the Trust. Therefore, if a redemption order in proper form is submitted to the Transfer Agent by a DTC Participant not later than Closing Time on the Transmittal Date, and the requisite number of shares of a Fund are delivered to the Custodian prior to the DTC Cut-Off-Time, then the value of the Fund Securities and the Cash Redemption Amount to be delivered/received will be determined by the Custodian on such Transmittal Date. If, however, either (i) the requisite number of shares of a Fund are not delivered by the DTC Cut-Off-Time, as described above; or (ii) the redemption order is not submitted in proper form, then the redemption order will not be deemed received as of the Transmittal Date. In such case, the value of the Fund Securities and the Cash Redemption Amount to be delivered/received will be computed on the Business Day following the Transmittal Date provided that the Fund shares of a Fund are delivered through DTC to the Custodian by 11:00 a.m. the following Business Day pursuant to a properly submitted redemption order.

If it is not possible to effect deliveries of the Fund Securities, the Trust may in its discretion exercise its option to redeem such Fund shares in cash, and the redeeming Beneficial Owner will be required to receive its redemption proceeds in cash. In addition, an investor may request a redemption in cash that a Fund may, in its sole discretion, permit. In either case, the investor will receive a cash payment equal to the net asset value of its Fund shares based on the net asset value of shares of a Fund next determined after the redemption request is received in proper form (minus a Redemption Transaction Fee and additional charge for requested cash redemptions specified above, to offset the Fund’s brokerage and other transaction costs

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associated with the disposition of Fund Securities). The Funds may also, in their sole discretion, upon request of a shareholder, provide such redeemer a portfolio of securities that differs from the exact composition of the Fund Securities, or cash in lieu of some securities added to the Cash Component, but in no event will the total value of the securities delivered and the cash transmitted differ from the net asset value. Redemptions of Fund shares for Fund Securities will be subject to compliance with applicable federal and state securities laws and each Fund (whether or not it otherwise permits cash redemptions) reserves the right to redeem Creation Unit Aggregations for cash to the extent that the Trust could not lawfully deliver specific Fund Securities upon redemptions or could not do so without first registering the Fund Securities under such laws. An Authorized Participant or an investor for which it is acting subject to a legal restriction with respect to a particular stock included in the Fund Securities applicable to the redemption of a Creation Unit Aggregation may be paid an equivalent amount of cash. The Authorized Participant may request the redeeming Beneficial Owner of the Fund shares to complete an order form or to enter into agreements with respect to such matters as compensating cash payment, beneficial ownership of shares or delivery instructions.

Subject to the terms if the applicable Participant Agreement, the chart below generally describes in further detail the placement of creation and redemption orders, presuming a creation or redemption not later than T+2.

	Transmittal Date (T)	Next Business Day (T+1)	Second Business Day (T+2)
CREATION THROUGH NSCC
Standard Orders	4:00 p.m. (ET) Order must be received by the Distributor.	No action.	Creation Unit Aggregations will be delivered.
Custom Orders	3:00 p.m. (ET) Order must be received by the Distributor. Orders received after 3:00 p.m. (ET) will be treated as standard orders.	No action.	Creation Unit Aggregations will be delivered.
CREATION OUTSIDE NSCC
Standard Orders	4:00 p.m. (ET) Order in proper form must be received by the Distributor.	11:00 a.m. (ET) Deposit Securities must be received by a Fund’s account through DTC. 2:00 p.m. (ET) Cash Component must be received by the Custodian.	Creation Unit Aggregations will be delivered.
Standard Orders Created in Advance of Receipt by the Trust of all or a portion of the Deposit Securities	4:00 p.m. (ET) Order in proper form must be received by the Distributor.	11:00 a.m. (ET) Available Deposit Securities. Cash in an amount equal to the sum of (i) the Cash Component, plus (ii) 115% of the market value of the undelivered Deposit Securities.	1:00 p.m. Missing Deposit Securities are due to the Trust or the Trust may use cash on deposit to purchase missing Deposit Securities. Creation Unit Aggregations will be delivered.
Custom Orders	3:00 p.m. (ET) Order in proper form must be received by the Distributor. Order received after 3:00 p.m. (ET) will be treated as standard orders.	11:00 a.m. (ET) Deposit Securities must be received by a Fund’s account through DTC. 2:00 p.m. (ET) Cash Component must be received by the Custodian.	Creation Unit Aggregations will be delivered.

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	Transmittal Date (T)	Next Business Day (T+1)	Second Business Day (T+2)
REDEMPTION THROUGH NSCC
Standard Orders	4:00 p.m. (ET) Order must be received by the Transfer Agent. Orders received after 4:00 p.m. (ET) will be deemed received on the next business day (T+1)	No action.	Fund Securities and Cash Redemption Amount will be transferred.
Custom Orders	3:00 p.m. (ET) Order must be received by the Transfer Agent Order received after 3:00 p.m. (ET) will be treated as standard orders.	No action.	Fund Securities and Cash Redemption Amount will be transferred.
REDEMPTION OUTSIDE NSCC
Standard Orders	4:00 p.m. (ET) Order must be received by the Transfer Agent. Order received after 4:00 p.m. (ET) will be deemed received on the next business day (T+1).	11:00 a.m. (ET) Fund shares must be delivered through DTC to the Custodian. 2:00 p.m. (ET) Cash Component, if any, is due. *If the order is not in proper form or the Fund shares are not delivered, then the order will not be deemed received as of T.	Fund Securities and Cash Redemption Amount are delivered to the redeeming beneficial owner.
Custom Orders	3:00 p.m. (ET) Order must be received by the Transfer Agent. Order received after 3:00 p.m. (ET) will be treated as standard orders.	11:00 a.m. (ET) Fund shares must be delivered through DTC to the Custodian. 2:00 p.m. (ET) Cash Component, if any, is due. *If the order is not in proper form or the Fund shares are not delivered, then the order will not be deemed received as of T.	Fund Securities and Cash Redemption Amount are delivered to the redeeming beneficial owner.

Federal Tax Matters

This section summarizes some of the main U.S. federal income tax consequences of owning shares of the Funds. This section is current as of the date of the SAI. Tax laws and interpretations change frequently, and these summaries do not describe all of the tax consequences to all taxpayers. For example, these summaries generally do not describe your situation if you are a corporation, a non-U.S. person, a broker-dealer, or other investor with special circumstances. In addition, this section does not describe your state, local or foreign tax consequences.

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reached a conclusion with respect to the federal income tax treatment of the assets to be deposited in the Funds. This may not be sufficient for prospective investors to use for the purpose of avoiding penalties under federal tax law.

As with any investment, prospective investors should seek advice based on their individual circumstances from their own tax advisor.

Each Fund intends to qualify annually and to elect to be treated as a regulated investment company under the Internal Revenue Code of 1986 (the “Code”).

To qualify for the favorable U.S. federal income tax treatment generally accorded to regulated investment companies, a Fund must, among other things, (a) derive in each taxable year at least 90% of its gross income from dividends, interest, payments with respect to securities loans and gains from the sale or other disposition of stock, securities or foreign currencies or other income derived with respect to its business of investing in such stock, securities or currencies, or net income derived from interests in certain publicly traded partnerships; (b) diversify its holdings so that, at the end of each quarter of the taxable year, (i) at least 50% of the market value of a Fund’s assets is represented by cash and cash items (including receivables), U.S. government securities, the securities of other regulated investment companies and other securities, with such other securities of any one issuer generally limited for the purposes of this calculation to an amount not greater than 5% of the value of a Fund’s total assets and not greater than 10% of the outstanding voting securities of such issuer, and (ii) not more than 25% of the value of its total assets is invested in the securities (other than U.S. government securities or the securities of other regulated investment companies) of any one issuer, or two or more issuers which a Fund controls which are engaged in the same, similar or related trades or businesses, or the securities of one or more of certain publicly traded partnerships; and (c) distribute at least 90% of its investment company taxable income (which includes, among other items, dividends, interest and net short-term capital gains in excess of net long-term capital losses) and at least 90% of its net tax-exempt interest income each taxable year. There are certain exceptions for failure to qualify if the failure is for reasonable cause or is de minimis, and certain corrective action is taken and certain tax payments are made by the Fund.

As regulated investment company, a Fund generally will not be subject to U.S. federal income tax on its investment company taxable income (as that term is defined in the Code, but without regard to the deduction for dividends paid) and net capital gain (the excess of net long-term capital gain over net short-term capital loss), if any, that it distributes to shareholders. Each Fund intends to distribute to its shareholders, at least annually, substantially all of its investment company taxable income and net capital gain. If a Fund retains any net capital gain or investment company taxable income, it will generally be subject to federal income tax at regular corporate rates on the amount retained. In addition, amounts not distributed on a timely basis in accordance with a calendar year distribution requirement are subject to a nondeductible 4% excise tax unless, generally, a Fund distribute during each calendar year an amount equal to the sum of (1) at least 98% of its ordinary income (not taking into account any capital gains or losses) for the calendar year, (2) at least 98.2% of its capital gains in excess of its capital losses (adjusted for certain ordinary losses) for the one-year period ending October 31 of the calendar year, and (3) any ordinary income and capital gains for previous years that were not distributed during those years. In order to prevent application of the excise tax, each Fund intends to make its distributions in accordance with the calendar year distribution requirement. A distribution will be treated as paid on December 31 of the current calendar year if it is declared by a Fund in October, November or December with a record date in such a month and paid by the Fund during January of the following calendar year. Such distributions will be taxable to shareholders in the calendar year in which the distributions are declared, rather than the calendar year in which the distributions are received.

Subject to certain reasonable cause and de minimis exceptions, if a Fund fails to qualify as a regulated investment company or fails to satisfy the 90% distribution requirement in any taxable year, the Fund would be taxed as an ordinary corporation on its taxable income (even if such income were distributed to its shareholders) and all distributions out of earnings and profits would be taxed to shareholders as ordinary income.

DISTRIBUTIONS

Dividends paid out of a Fund’s investment company taxable income are generally taxable to a shareholder as ordinary income to the extent of the Fund’s earnings and profits, whether paid in cash or reinvested in additional shares. However, certain ordinary income distributions received from a Fund may be taxed at capital gains tax rates. In particular, ordinary income dividends received by an individual shareholder from a regulated investment company such as each of the Funds are generally taxed at the same rates that apply to net capital gain, provided that certain holding period requirements are satisfied and provided the dividends are attributable to qualifying dividends received by a Fund itself. Dividends received by a Fund from REITs and foreign corporations are qualifying dividends eligible for this lower tax rate only in certain circumstances. A Fund will provide notice to its shareholders of the amount of any distributions that may be taken into account as a dividend which

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is eligible for the capital gains tax rates. A Fund cannot make any guarantees as to the amount of any distribution which will be regarded as a qualifying dividend.

Income from a Fund may also be subject to a 3.8% “Medicare tax.” This tax generally applies to net investment income if the taxpayer’s adjusted gross income exceeds certain threshold amounts, which are $250,000 in the case of married couples filing joint returns and $200,000 in the case of single individuals.

A corporation that owns shares generally will not be entitled to the dividends received deduction with respect to many dividends received from a Fund because the dividends received deduction is generally not available for distributions from regulated investment companies. However, certain ordinary income dividends on shares that are attributable to qualifying dividends received by the Funds from certain domestic corporations may be reported by a Fund as being eligible for the dividends received deduction.

Distributions of net capital gain (the excess of net long-term capital gain over net short-term capital loss), if any, properly reported as capital gain dividends are taxable to a shareholder as long-term capital gains, regardless of how long the shareholder has held Fund shares. Shareholders receiving distributions in the form of additional shares, rather than cash, generally will have a tax basis in each such share equal to the value of a share of a Fund on the reinvestment date. A distribution of an amount in excess of a Fund’s current and accumulated earnings and profits will be treated by a shareholder as a return of capital which is applied against and reduces the shareholder’s basis in his or her shares. To the extent that the amount of any such distribution exceeds the shareholder’s basis in his or her shares, the excess will be treated by the shareholder as gain from a sale or exchange of the shares.

Shareholders will be notified annually as to the U.S. federal income tax status of distributions and shareholders receiving distributions in the form of additional shares will receive a report as to the value of those shares.

SALE OR EXCHANGE OF FUND SHARES

Upon the sale or other disposition of shares of a Fund, which a shareholder holds as a capital asset, such a shareholder may realize a capital gain or loss which will be long-term or short-term, depending upon the shareholder’s holding period for the shares. Generally, a shareholder’s gain or loss will be a long-term gain or loss if the shares have been held for more than one year.

Any loss realized on a sale or exchange will be disallowed to the extent that shares disposed of are replaced (including through reinvestment of dividends) within a period of 61 days beginning 30 days before and ending 30 days after disposition of shares or to the extent that the shareholder, during such period, acquires or enters into an option or contract to acquire, substantially identical stock or securities. In such a case, the basis of the shares acquired will be adjusted to reflect the disallowed loss. Any loss realized by a shareholder on a disposition of Fund shares held by the shareholder for six months or less will be treated as a long-term capital loss to the extent of any distributions of long-term capital gain received by the shareholder with respect to such shares.

TAXES ON PURCHASE AND REDEMPTION OF CREATION UNITS

If a shareholder exchanges securities for Creation Units the shareholder will generally recognize a gain or a loss. The gain or loss will be equal to the difference between the market value of the Creation Units at the time and the shareholder’s aggregate basis in the securities surrendered and the Cash Component paid. If a shareholder exchanges Creation Units for securities, then the shareholder will generally recognize a gain or loss equal to the difference between the shareholder’s basis in the Creation Units and the aggregate market value of the securities received and the Cash Redemption Amount. The Internal Revenue Service, however, may assert that a loss realized upon an exchange of securities for Creation Units or Creation Units for securities cannot be deducted currently under the rules governing “wash sales,” or on the basis that there has been no significant change in economic position.

NATURE OF FUND’S INVESTMENTS

Certain of the Funds’ investment practices are subject to special and complex federal income tax provisions that may, among other things, (i) disallow, suspend or otherwise limit the allowance of certain losses or deductions, (ii) convert lower taxed long-term capital gain into higher taxed short-term capital gain or ordinary income, (iii) convert an ordinary loss or a deduction into a capital loss (the deductibility of which is more limited), (iv) cause a Fund to recognize income or gain without

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a corresponding receipt of cash; (v) adversely affect the time as to when a purchase or sale of stock or securities is deemed to occur; and (vi) adversely alter the characterization of certain complex financial transactions.

FUTURES CONTRACTS AND OPTIONS

The Funds’ transactions in futures contracts and options will be subject to special provisions of the Code that, among other things, may affect the character of gains and losses realized by a Fund (i.e., may affect whether gains or losses are ordinary or capital, or short-term or long-term), may accelerate recognition of income to a Fund and may defer Fund losses. These rules could, therefore, affect the character, amount and timing of distributions to shareholders. These provisions also (a) will require a Fund to mark-to-market certain types of the positions in its portfolio (i.e., treat them as if they were closed out), and (b) may cause a Fund to recognize income without receiving cash with which to make distributions in amounts necessary to satisfy the 90% distribution requirement for qualifying to be taxed as a regulated investment company and the distribution requirements for avoiding excise taxes.

INVESTMENTS IN CERTAIN FOREIGN CORPORATIONS

If a Fund holds an equity interest in any “passive foreign investment companies” (“PFICs”), which are generally certain foreign corporations that receive at least 75% of their annual gross income from passive sources (such as interest, dividends, certain rents and royalties or capital gains) or that hold at least 50% of their assets in investments producing such passive income, the Fund could be subject to U.S. federal income tax and additional interest charges on gains and certain distributions with respect to those equity interests, even if all the income or gain is timely distributed to its shareholders. A Fund will not be able to pass through to its shareholders any credit or deduction for such taxes. A Fund may be able to make an election that could ameliorate these adverse tax consequences. In this case, a Fund would recognize as ordinary income any increase in the value of such PFIC shares, and as ordinary loss any decrease in such value to the extent it did not exceed prior increases included in income. Under this election, a Fund might be required to recognize in a year income in excess of its distributions from PFICs and its proceeds from dispositions of PFIC stock during that year, and such income would nevertheless be subject to the distribution requirement and would be taken into account for purposes of the 4% excise tax (described above). Dividends paid by PFICs are not treated as qualified dividend income.

BACKUP WITHHOLDING

A Fund may be required to withhold U.S. federal income tax from all taxable distributions and sale proceeds payable to shareholders who fail to provide the Fund with their correct taxpayer identification number or fail to make required certifications, or who have been notified by the Internal Revenue Service that they are subject to backup withholding. Corporate shareholders and certain other shareholders specified in the Code generally are exempt from such backup withholding. This withholding is not an additional tax. Any amounts withheld may be credited against the shareholder’s U.S. federal income tax liability.

NON-U.S. SHAREHOLDERS

U.S. taxation of a shareholder who, as to the United States, is a nonresident alien individual, a foreign trust or estate, a foreign corporation or foreign partnership (“non-U.S. shareholder”) depends on whether the income of a Fund is “effectively connected” with a U.S. trade or business carried on by the shareholder.

In addition to the rules described in this section concerning the potential imposition of withholding on distributions to non-U.S. persons, distributions to non-U.S. persons that are “financial institutions” may be subject to a withholding tax of 30% unless an agreement is in place between the financial institution and the U.S. Treasury to collect and disclose information about accounts, equity investments, or debt interests in the financial institution held by one or more U.S. persons or the institution is resident in a jurisdiction that has entered into such an agreement with the U.S. Treasury. For these purposes, a “financial institution” means any entity that (i) accepts deposits in the ordinary course of a banking or similar business; (ii) holds financial assets for the account of others as a substantial portion of its business; or (iii) is engaged (or holds itself out as being engaged) primarily in the business of investing, reinvesting or trading in securities, partnership interests, commodities or any interest (including a futures contract or option) in such securities, partnership interests or commodities. Dispositions of shares by such persons may be subject to such withholding after December 31, 2018.

Distributions to non-financial non-U.S. entities (other than publicly traded foreign entities, entities owned by residents of U.S. possessions, foreign governments, international organizations, or foreign central banks) will also be subject to a withholding tax of 30% if the entity does not certify that the entity does not have any substantial U.S. owners or provide the name, address

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and TIN of each substantial U.S. owner. Dispositions of shares by such persons may be subject to such withholding after December 31, 2018.

Income Not Effectively Connected. If the income from a Fund is not “effectively connected” with a U.S. trade or business carried on by the non-U.S. shareholder, distributions of investment company taxable income will generally be subject to a U.S. tax of 30% (or lower treaty rate), which tax is generally withheld from such distributions.

Distributions of capital gain dividends and any amounts retained by a Fund which are properly reported by the Fund as undistributed capital gains will not be subject to U.S. tax at the rate of 30% (or lower treaty rate) unless the non-U.S. shareholder is a nonresident alien individual and is physically present in the United States for more than 182 days during the taxable year and meets certain other requirements. However, this 30% tax on capital gains of nonresident alien individuals who are physically present in the United States for more than the 182 day period only applies in exceptional cases because any individual present in the United States for more than 182 days during the taxable year is generally treated as a resident for U.S. income tax purposes; in that case, he or she would be subject to U.S. income tax on his or her worldwide income at the graduated rates applicable to U.S. citizens, rather than the 30% U.S. tax. In the case of a non-U.S. shareholder who is a nonresident alien individual, the Funds may be required to withhold U.S. income tax from distributions of net capital gain unless the non-U.S. shareholder certifies his or her non-U.S. status under penalties of perjury or otherwise establishes an exemption. If a non-U.S. shareholder is a nonresident alien individual, any gain such shareholder realizes upon the sale or exchange of such shareholder’s shares of the Funds in the United States will ordinarily be exempt from U.S. tax unless the gain is U.S. source income and such shareholder is physically present in the United States for more than 182 days during the taxable year and meets certain other requirements.

Distributions from a Fund that are properly reported by the Fund as an interest-related dividend attributable to certain interest income received by the Fund or as a short-term capital gain dividend attributable to certain net short-term capital gain income received by the Fund may not be subject to U.S. federal income taxes, including withholding taxes when received by certain non-U.S. investors, provided that the Fund makes certain elections and certain other conditions are met.

In addition, capital gain distributions attributable to gains from U.S. real property interests (including certain U.S. real property holding corporations) will generally be subject to United States withholding tax and will give rise to an obligation on the part of the foreign shareholder to file a United States tax return.

Income Effectively Connected. If the income from a Fund is “effectively connected” with a U.S. trade or business carried on by a non-U.S. shareholder, then distributions of investment company taxable income and capital gain dividends, any amounts retained by the Fund which are properly reported by the Fund as undistributed capital gains and any gains realized upon the sale or exchange of shares of the Fund will be subject to U.S. income tax at the graduated rates applicable to U.S. citizens, residents and domestic corporations. Non-U.S. corporate shareholders may also be subject to the branch profits tax imposed by the Code. The tax consequences to a non-U.S. shareholder entitled to claim the benefits of an applicable tax treaty may differ from those described herein. Non-U.S. shareholders are advised to consult their own tax advisors with respect to the particular tax consequences to them of an investment in the Funds.

Capital Loss Carry-forward

Under the Regulated Investment Company Modernization Act of 2010, net capital losses of a Fund incurred in taxable years beginning after December 22, 2010 may be carried forward indefinitely, and their character is retained as short-term and/or long-term losses. To the extent that these loss carry-forwards are used to offset future capital gains, it is probable that the capital gains so offset will not be distributed to Fund shareholders. As of July 31, 2017, the Funds had pre-enactment and post-enactment capital losses for federal income tax purposes as shown in the following table. To the extent that these loss carry-forwards are used to offset future capital gains, it is probable that the capital gains so offset will not be distributed to Fund shareholders. The Funds are subject to certain limitations, under U.S. tax rules, on the use of capital loss carry-forwards and net unrealized built-in losses. These limitations generally apply when there has been a 50% change in ownership.

Fund	Capital Loss Available through		Post- Enactment No Expiration	Total Capital Loss Available
Fund	7/31/2018	7/31/2019	Post- Enactment No Expiration	Total Capital Loss Available
First Trust Consumer Discretionary AlphaDEX^® Fund	$1,138,594	$9,617,858	$397,366,402	$408,122,854
First Trust Consumer Staples AlphaDEX^® Fund	1,058,131	—	215,308,850	216,366,981
First Trust Energy AlphaDEX^® Fund	2,084,336	3,349,453	332,565,983	337,999,772
First Trust Financials AlphaDEX^® Fund	1,630,337	3,464,108	80,468,989	85,563,434

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Fund	Capital Loss Available through		Post- Enactment No Expiration	Total Capital Loss Available
Fund	7/31/2018	7/31/2019	Post- Enactment No Expiration	Total Capital Loss Available
First Trust Health Care AlphaDEX^® Fund	2,582,977	1,764,162	543,520,893	547,868,032
First Trust Industrials/Producer Durables AlphaDEX^® Fund	1,325,584	1,133,736	117,781,954	120,241,274
First Trust Materials AlphaDEX^® Fund	886,622	7,397,299	105,634,947	113,918,868
First Trust Technology AlphaDEX^® Fund	2,508,150	2,516,610	162,596,420	167,621,180
First Trust Utilities AlphaDEX^® Fund	1,956,482	—	100,532,786	102,489,268
First Trust Large Cap Core AlphaDEX^® Fund	2,800,653	1,020,863	209,489,061	213,310,577
First Trust Large Cap Growth AlphaDEX^® Fund	3,224,180	1,803,151	91,286,266	96,313,597
First Trust Large Cap Value AlphaDEX^® Fund	5,098,300	298,768	199,665,432	205,062,500
First Trust Mega Cap AlphaDEX^® Fund	—	—	3,893,080	3,893,080
First Trust Mid Cap Core AlphaDEX^® Fund	2,119,642	1,502,304	173,187,327	176,809,273
First Trust Mid Cap Growth AlphaDEX^® Fund	—	—	22,991,065	22,991,065
First Trust Mid Cap Value AlphaDEX^® Fund	—	—	14,070,733	14,070,733
First Trust Multi Cap Growth AlphaDEX^® Fund	1,438,794	345,171	21,608,991	23,392,956
First Trust Multi Cap Value AlphaDEX^® Fund	1,180,819	322,362	35,535,596	37,038,777
First Trust Small Cap Core AlphaDEX^® Fund	1,600,982	1,258,833	159,068,773	161,928,588
First Trust Small Cap Growth AlphaDEX^® Fund	—	—	22,637,894	22,637,894
First Trust Small Cap Value AlphaDEX^® Fund	—	—	24,056,901	24,056,901

Other Taxation

Fund shareholders may be subject to state, local and foreign taxes on their Fund distributions. Shareholders are advised to consult their own tax advisors with respect to the particular tax consequences to them of an investment in the Funds.

Determination of Net Asset Value

The following information supplements and should be read in conjunction with the section in the Prospectus entitled “Net Asset Value.”

The per-share net asset value of a Fund is determined by dividing the total value of the securities and other assets, less liabilities, by the total number of shares outstanding. Under normal circumstances, daily calculation of the net asset value will utilize the last closing sale price of each security held by a Fund at the close of the market on which such security is principally listed. In determining net asset value, portfolio securities for a Fund for which accurate market quotations are readily available will be valued by the Fund accounting agent as follows:

(1)	Common stocks and other equity securities listed on any national or foreign exchange other than Nasdaq and the London Stock Exchange Alternative Investment Market (“AIM”) will be valued at the last sale price on the exchange on which they are principally traded, or the official closing price for Nasdaq and AIM securities. Portfolio securities traded on more than one securities exchange are valued at the last sale price or official closing price, as applicable, on the Business Day as of which such value is being determined at the close of the exchange representing the principal market for such securities.
(2)	Shares of open-end funds are valued at fair value which is based on NAV per share.
(3)	Securities traded in the OTC market are fair valued at the mean of the bid and asked price, if available, and otherwise at their closing bid price.
(4)	Exchange traded options and futures contracts are valued at the closing price in the market where such contracts are principally traded. If no closing price is available, they will be fair valued at the mean of the bid and asked price. If no mean price is available, they will be fair valued at their closing bid price. OTC options and futures contracts are fair valued at the mean of the most recent bid and asked price, if available, and otherwise at their closing bid price.

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(5)	Forward foreign currency contracts are fair valued at the current day’s interpolated foreign exchange rate, as calculated using the current day’s spot rate, and the 30, 60, 90 and 180-day forward rates provided by a pricing service or by certain independent dealers in such contracts.

In addition, the following types of securities will be fair valued by the Fund accounting agent as follows:

(1)

Fixed-income securities, interest rate swaps, credit default swaps, total return swaps, currency swaps, currency-linked notes, credit-linked notes and other similar instruments will be fair valued using a pricing service.

(2)

Fixed income and other debt securities having a remaining maturity of 60 days or less when purchased are fair valued at cost adjusted for amortization of premiums and accretion of discounts (amortized cost), provided the Advisor’s Pricing Committee has determined that the use of amortized cost is an appropriate reflection of fair value given market and issuer-specific conditions existing at the time of the determination. Factors that may be considered in determining the appropriateness of the use of amortized cost include, but are not limited to, the following:

(i)	the credit conditions in the relevant market and changes thereto;
(ii)	the liquidity conditions in the relevant market and changes thereto;
(iii)	the interest rate conditions in the relevant market and changes thereto (such as significant changes in interest rates);
(iv)	issuer-specific conditions (such as significant credit deterioration); and
(v)	any other market-based data the Advisor’s Pricing Committee considers relevant. In this regard, the Advisor’s Pricing Committee may use last-obtained market-based data to assist it when valuing portfolio securities using amortized cost.

(3)

Repurchase agreements will be valued as follows. Overnight repurchase agreements will be fair valued at amortized cost when it represents the best estimate of fair value. Term repurchase agreements (i.e., those whose maturity exceeds seven days) will be fair valued by the Advisor’s Pricing Committee at the average of the bid quotations obtained daily from at least two recognized dealers.

If the Advisor’s Pricing Committee has reason to question the accuracy or reliability of a price supplied or the use of the amortized cost methodology, the Advisor’s Pricing Committee shall determine if “it needs to fair value” such portfolio security pursuant to established valuation procedures. From time to time, the Advisor’s Pricing Committee will request that the Fund accounting agent submit price challenges to a pricing service, usually in response to any updated broker prices received.

Certain securities may not be able to be priced by pre-established pricing methods. Such securities may be valued by the Board of Trustees or its delegate, the Advisor’s Pricing Committee, at fair value. These securities generally include but are not limited to, restricted securities (securities that may not be publicly sold without registration under the 1933 Act) for which a pricing service is unable to provide a market price; securities whose trading has been formally suspended; a security whose market or fair value price is not available from a pre-established pricing source; a security with respect to which an event has occurred that is likely to materially affect the value of the security after the market has closed but before the calculation of Fund net asset value (as may be the case in foreign markets on which the security is primarily traded) or is likely to make it difficult or impossible to obtain a reliable market quotation; and a security whose price, as provided by the pricing service, does not reflect the security’s fair value. Fair value prices represent any prices not considered market value prices and are either obtained from a pricing service or are determined by the Advisor’s Pricing Committee. Market value prices represent last sale or official closing prices from a national or foreign exchange (i.e., a regulated market) and are primarily obtained from pricing services. If no market price or official close price is available from either a pricing service or no quotations are available from one or more brokers or if the Advisor’s Pricing Committee has reason to question the reliability or accuracy of a price supplied or the use of amortized cost, the value of any portfolio security held by a Fund for which reliable market prices/quotations are not readily available will be determined by the Advisor’s Pricing Committee in a manner that most appropriately reflects fair market value of the security on the valuation date, based on a consideration of all available information. When fair value prices are used, generally they will differ from market quotations or official closing prices on the applicable exchange.

Because foreign markets may be open on different days than the days during which a shareholder may purchase the shares of a Fund, the value of a Fund’s investments may change on the days when shareholders are not able to purchase the shares of the Funds. For foreign securities, if an extraordinary market event occurs between the time the last “current” market

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quotation is available for a security in a Fund’s portfolio and the time the Fund’s net asset value is determined and calls into doubt whether that earlier market quotation represents fair value at the time the Fund’s net asset value is determined, the Fund accounting agent will immediately notify the Advisor’s Pricing Committee and the Advisor’s Pricing Committee shall determine the fair valuation. For foreign securities, the Advisor’s Pricing Committee may seek to determine the “fair value” of such securities by retaining a pricing service to determine the value of the securities.

Foreign securities, currencies and other assets denominated in foreign currencies are translated into U.S. dollars at the exchange rate of such currencies against the U.S. dollar as provided by a pricing service. All assets denominated in foreign currencies will be converted into U.S. dollars at the exchange rates in effect at the time of valuation.

Dividends and Distributions

The following information supplements and should be read in conjunction with the section in the Prospectus entitled “Dividends, Distributions and Taxes.”

General Policies. Dividends from net investment income of a Fund, if any, are declared and paid quarterly. Distributions of net realized securities gains, if any, generally are declared and paid once a year, but the Trust may make distributions on a more frequent basis. The Trust reserves the right to declare special distributions if, in its reasonable discretion, such action is necessary or advisable to preserve the status of such Fund as a regulated investment company or to avoid imposition of income or excise taxes on undistributed income.

Dividends and other distributions of Fund shares are distributed, as described below, on a pro rata basis to Beneficial Owners of such shares. Dividend payments are made through DTC Participants and Indirect Participants to Beneficial Owners then of record with proceeds received from the Funds.

Dividend Reinvestment Service. No reinvestment service is provided by the Trust. Broker-dealers may make available the DTC book-entry Dividend Reinvestment Service for use by Beneficial Owners of the Funds for reinvestment of their dividend distributions. Beneficial Owners should contact their brokers in order to determine the availability and costs of the service and the details of participation therein. Brokers may require Beneficial Owners to adhere to specific procedures and timetables. If this service is available and used, dividend distributions of both income and realized gains will be automatically reinvested in additional whole shares of each Fund purchased in the secondary market.

Miscellaneous Information

Counsel. Chapman and Cutler LLP, 111 West Monroe Street, Chicago, Illinois 60603, is counsel to the Trust.

Independent Registered Public Accounting Firm. Deloitte & Touche LLP, 111 South Wacker Drive, Chicago, Illinois 60606, serves as the Funds' independent registered public accounting firm. The firm audits each Fund's financial statements and performs other related audit services.

Financial Statements

The audited financial statements and notes thereto for the Funds, contained in the Annual Reports to Shareholders dated July 31, 2017, are incorporated by reference into this Statement of Additional Information and have been audited by Deloitte & Touche LLP, independent registered public accounting firm, whose report also appears in the Annual Reports and are also incorporated by reference herein. No other parts of the Annual Reports are incorporated by reference herein. The Annual Reports are available without charge by calling (800) 621-1675 or by visiting the SEC's website at http://www.sec.gov.

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Exhibit A—Principal Holders Table

NAME OF BENEFICIAL OWNER	% OF OUTSTANDING SHARES OWNED
FIRST TRUST CONSUMER DISCRETIONARY ALPHADEX^® FUND
Wells Fargo Clearing Services, LLC⁽¹⁾	22.89%
Morgan Stanley Smith Barney LLC⁽²⁾	15.34%
National Financial Services LLC⁽³⁾	8.38%
UBS Financial Services Inc.⁽⁴⁾	6.84%
TD Ameritrade Clearing, Inc.⁽⁵⁾	6.70%
Raymond James & Associates, Inc.⁽⁶⁾	6.30%
Merrill Lynch, Pierce Fenner & Smith Incorporated⁽⁷⁾	5.05%
FIRST TRUST CONSUMER STAPLES ALPHADEX^® FUND
National Financial Services LLC	14.89%
Wells Fargo Clearing Services, LLC	13.19%
Morgan Stanley Smith Barney LLC	11.17%
Charles Schwab & Co., Inc.⁽⁸⁾	7.02%
American Enterprise Investment Services Inc.⁽⁹⁾	6.63%
Pershing LLC⁽¹⁰⁾	6.43%
TD Ameritrade Clearing, Inc.	6.03%
Raymond James & Associates, Inc.	5.34%
Merrill Lynch, Pierce Fenner & Smith Incorporated	5.17%
FIRST TRUST ENERGY ALPHADEX^® FUND
Wells Fargo Clearing Services, LLC	16.12%
Morgan Stanley Smith Barney LLC	14.16%
Raymond James & Associates, Inc.	13.02%
National Financial Services LLC	6.86%
LPL Financial Corporation⁽¹¹⁾	6.71%
Merrill Lynch, Pierce Fenner & Smith Incorporated	5.81%
Pershing LLC	5.40%
FIRST TRUST FINANCIALS ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	16.85%
Wells Fargo Clearing Services, LLC	13.38%
Merrill Lynch, Pierce Fenner & Smith Incorporated	8.03%
UBS Financial Services Inc.	7.96%
National Financial Services LLC	7.14%
Charles Schwab & Co., Inc.	6.69%
Raymond James & Associates, Inc.	6.10%
LPL Financial Corporation	5.30%
American Enterprise Investment Services Inc.	5.11%
FIRST TRUST HEALTH CARE ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	15.88%
Wells Fargo Clearing Services, LLC	11.83%
National Financial Services LLC	8.23%
Merrill Lynch, Pierce Fenner & Smith Incorporated	7.51%
Raymond James & Associates, Inc.	7.48%
Charles Schwab & Co., Inc.	7.01%

A-1

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NAME OF BENEFICIAL OWNER	% OF OUTSTANDING SHARES OWNED
TD Ameritrade Clearing, Inc.	5.91%
UBS Financial Services Inc.	5.81%
Pershing LLC	5.37%
LPL Financial Corporation	5.19%
FIRST TRUST INDUSTRIALS/PRODUCER DURABLES ALPHADEX^® FUND
Brown Brothers Harriman & Co./ETF⁽¹²⁾	35.11%
Wells Fargo Clearing Services, LLC	13.56%
Morgan Stanley Smith Barney LLC	11.44%
Raymond James & Associates, Inc.	5.80%
National Financial Services LLC	5.55%
FIRST TRUST MATERIALS ALPHADEX^® FUND
Wells Fargo Clearing Services, LLC	17.01%
Morgan Stanley Smith Barney LLC	14.57%
TD Ameritrade Clearing, Inc.	12.86%
National Financial Services LLC	11.18%
Charles Schwab & Co., Inc.	5.39%
LPL Financial Corporation	5.26%
Pershing LLC	5.06%
FIRST TRUST TECHNOLOGY ALPHADEX^® FUND
Wells Fargo Clearing Services, LLC	19.35%
Morgan Stanley Smith Barney LLC	12.28%
National Financial Services LLC	8.64%
TD Ameritrade Clearing, Inc.	6.81%
Raymond James & Associates, Inc.	6.27%
Merrill Lynch, Pierce Fenner & Smith Incorporated	6.10%
UBS Financial Services Inc.	5.77%
Pershing LLC	5.47%
FIRST TRUST UTILITIES ALPHADEX^® FUND
Brown Brothers Harriman & Co./ETF	40.25%
Morgan Stanley Smith Barney LLC	11.89%
Wells Fargo Clearing Services, LLC	10.18%
National Financial Services LLC	5.98%
Raymond James & Associates, Inc.	5.54%
FIRST TRUST LARGE CAP CORE ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	13.79%
National Financial Services LLC	13.38%
Wells Fargo Clearing Services, LLC	13.03%
LPL Financial Corporation	8.15%
Raymond James & Associates, Inc.	7.62%
Merrill Lynch, Pierce Fenner & Smith Incorporated	6.68%
Pershing LLC	6.12%
UBS Financial Services Inc.	6.06%
FIRST TRUST LARGE CAP GROWTH ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	17.93%
Wells Fargo Clearing Services, LLC	13.77%

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NAME OF BENEFICIAL OWNER	% OF OUTSTANDING SHARES OWNED
LPL Financial Corporation	10.99%
UBS Financial Services Inc.	9.10%
National Financial Services LLC	7.93%
Merrill Lynch, Pierce Fenner & Smith Incorporated	6.97%
Pershing LLC	5.93%
FIRST TRUST LARGE CAP VALUE ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	24.52%
UBS Financial Services Inc.	13.91%
Wells Fargo Clearing Services, LLC	10.58%
LPL Financial Corporation	8.38%
Pershing, L.L.C.	6.64%
National Financial Services LLC	6.46%
Raymond James & Associates, Inc.	6.01%
Merrill Lynch, Pierce Fenner & Smith Incorporated	5.79%
FIRST TRUST MEGA CAP ALPHADEX^® FUND
RBC Capital Markets, LLC⁽¹³⁾	12.72%
National Financial Services LLC	12.63%
LPL Financial Corporation	11.83%
Morgan Stanley Smith Barney LLC	10.12%
Merrill Lynch, Pierce Fenner & Smith Incorporated	9.08%
Raymond James & Associates, Inc.	6.94%
Merrill Lynch, Pierce Fenner & Smith Safekeeping	5.76%
FIRST TRUST MID CAP CORE ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	18.13%
Wells Fargo Clearing Services, LLC	15.76%
UBS Financial Services Inc.	9.09%
Raymond James & Associates, Inc.	7.38%
National Financial Services LLC	5.98%
LPL Financial Corporation	5.27%
FIRST TRUST MID CAP GROWTH ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	19.54%
LPL Financial Corporation	16.59%
Wells Fargo Clearing Services, LLC	14.86%
Merrill Lynch, Pierce Fenner & Smith Incorporated	8.73%
National Financial Services LLC	7.90%
Raymond James & Associates, Inc.	6.87%
FIRST TRUST MID CAP VALUE ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	16.92%
Wells Fargo Clearing Services, LLC	14.81%
LPL Financial Corporation	9.09%
National Financial Services LLC	9.06%
Raymond James & Associates, Inc.	8.37%
Pershing LLC	8.31%
Merrill Lynch, Pierce Fenner & Smith Incorporated	7.12%

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NAME OF BENEFICIAL OWNER	% OF OUTSTANDING SHARES OWNED
FIRST TRUST MULTI CAP GROWTH ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	15.18%
Raymond James & Associates, Inc.	12.89%
Pershing LLC	10.72%
Wells Fargo Clearing Services, LLC	10.11%
LPL Financial Corporation	7.57%
National Financial Services LLC	6.81%
Merrill Lynch, Pierce Fenner & Smith Incorporated	5.21%
FIRST TRUST MULTI CAP VALUE ALPHADEX^® FUND
Raymond James & Associates, Inc.	14.01%
National Financial Services LLC	9.72%
UBS Financial Services Inc.	9.57%
Charles Schwab & Co., Inc.	8.13%
Pershing LLC	8.03%
Merrill Lynch, Pierce Fenner & Smith Incorporated	7.72%
Morgan Stanley Smith Barney LLC	6.80%
Wells Fargo Clearing Services, LLC	5.98%
FIRST TRUST SMALL CAP CORE ALPHADEX^® FUND
Wells Fargo Clearing Services, LLC	19.05%
Morgan Stanley Smith Barney LLC	13.63%
National Financial Services LLC	7.53%
LPL Financial Corporation	7.08%
Raymond James & Associates, Inc.	6.83%
UBS Financial Services Inc.	6.76%
Pershing LLC	5.73%
FIRST TRUST SMALL CAP GROWTH ALPHADEX^® FUND
Morgan Stanley Smith Barney LLC	19.22%
LPL Financial Corporation	14.72%
National Financial Services LLC	12.05%
Merrill Lynch, Pierce Fenner & Smith Incorporated	10.44%
Raymond James & Associates, Inc.	8.09%

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NAME OF BENEFICIAL OWNER	% OF OUTSTANDING SHARES OWNED
FIRST TRUST SMALL CAP VALUE ALPHADEX^® FUND
Wells Fargo Clearing Services, LLC	15.86%
BB&T Securities, LLC⁽¹⁴⁾	12.76%
Morgan Stanley Smith Barney LLC	12.05%
Pershing LLC	8.40%
National Financial Services LLC	8.08%
Merrill Lynch, Pierce Fenner & Smith Incorporated	6.94%
TD Ameritrade Clearing, Inc.	6.33%
Raymond James & Associates, Inc.	5.62%
LPL Financial Corporation	5.35%

(1)	Wells Fargo Clearing Services LLC: 2801 Market Street H0006-09B, St. Louis, Missouri 63103
(2)	Morgan Stanley Smith Barney LLC: 1300 Thames St. 6th Floor, Baltimore, Maryland 21231
(3)	National Financial Services: 499 Washington Boulevard, Jersey City, New Jersey 07310
(4)	UBS Financial Services Inc.: 1000 Harbor Blvd., Weehawken, New Jersey 07086
(5)	TD Ameritrade Clearing, Inc.: 1005 N. Ameritrade Place, Bellevue, Nebraska 68005
(6)	Raymond James and Associates, Inc.: 880 Carilion Parkway, St. Petersburg, FL 33716

(7)	Merrill Lynch, Pierce, Fenner & Smith Incorporated: 4804 Deer Lake Dr. E., Jacksonville, Florida 32246

(8)	Schwab (Charles) & Co., Inc.: 2423 East Lincoln Drive, Phoenix, Arizona 85016

(9)	American Enterprise Investment Services, Inc.: 682 AMP Financial Center, Minneapolis, MN 55474
(10)	Pershing LLC: One Pershing Plaza, Jersey City, New Jersey 07399
(11)	LPL Financial Corporation: 9785 Towne Centre Drive, San Diego, California 92121
(12)	Brown Brothers Harriman & Co. /ETF: 525 Washington Blvd, Jersey City, New Jersey 07310
(13)	RBC Capital Markets, LLC: 60 S 6th St.–P09, Minneapolis, Minnesota 55402

(14)	BB&T Securities, LLC: 8006 Discovery Drive, Suite 200 Richmond, Virginia 23229

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Exhibit B—Proxy Voting Guidelines

United States

Concise Proxy Voting Guidelines

2017 Benchmark Policy Recommendations

Effective for Meetings on or after February 1, 2017
Published January 17, 2017

www.issgovernance.com

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The policies contained herein are a sampling of selected key U.S. proxy voting guidelines and are not
intended to be exhaustive. A full summary of ISS’ 2017 proxy voting guidelines can be found at:
http://www.issgovernance.com/policy-gateway/2017-policy-information/

BOARD OF DIRECTORS:

Voting on Director Nominees in Uncontested Elections

➤	General Recommendation: Generally vote for director nominees, except under the following circumstances:

1. Accountability

Vote against⁽¹⁾ or withhold from the entire board of directors (except new nominees⁽²⁾, who should be considered case-by-case) for the following:

Problematic Takeover Defenses

Classified Board Structure:

1.1.	The board is classified, and a continuing director responsible for a problematic governance issue at the board/committee level that would warrant a withhold/against vote recommendation is not up for election. All appropriate nominees (except new) may be held accountable.

Director Performance Evaluation:

1.2.

The board lacks accountability and oversight, coupled with sustained poor performance relative to peers. Sustained poor performance is measured by one- and three-year total shareholder returns in the bottom half of a company’s four-digit GICS industry group (Russell 3000 companies only). Take into consideration the company’s five-year total shareholder return and operational metrics. Problematic provisions include but are not limited to:

➤	A classified board structure;
➤	A supermajority vote requirement;
➤	Either a plurality vote standard in uncontested director elections or a majority vote standard with no plurality carve-out for contested elections;
➤	The inability of shareholders to call special meetings;
➤	The inability of shareholders to act by written consent;
➤	A dual-class capital structure; and/or
➤	A non-shareholder-approved poison pill.

⁽¹⁾

In general, companies with a plurality vote standard use “Withhold” as the contrary vote option in director elections; companies with a majority vote standard use “Against”. However, it will vary by company and the proxy must be checked to determine the valid contrary vote option for the particular company.

⁽²⁾

A “new nominee” is any current nominee who has not already been elected by shareholders and who joined the board after the problematic action in question transpired. If ISS cannot determine whether the nominee joined the board before or after the problematic action transpired, the nominee will be considered a “new nominee” if he or she joined the board within the 12 months prior to the upcoming shareholder meeting.

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Poison Pills:

1.3.	The company’s poison pill has a “dead-hand” or “modified dead-hand” feature. Vote against or withhold from nominees every year until this feature is removed;

1.4.

The board adopts a poison pill with a term of more than 12 months (“long-term pill”), or renews any existing pill, including any “short-term pill” (12 months or less), without shareholder approval. A commitment or policy that puts a newly adopted pill to a binding shareholder vote may potentially offset an adverse vote recommendation. Review such companies with classified boards every year, and such companies with annually elected boards at least once every three years, and vote against or withhold votes from all nominees if the company still maintains a non-shareholder-approved poison pill; or

1.5.	The board makes a material adverse change to an existing poison pill without shareholder approval.

Vote case-by-case on all nominees if:

1.6.	The board adopts a poison pill with a term of 12 months or less (“short-term pill”) without shareholder approval, taking into account the following factors:

➤	The date of the pill‘s adoption relative to the date of the next meeting of shareholders—i.e. whether the company had time to put the pill on the ballot for shareholder ratification given the circumstances;
➤	The issuer’s rationale;
➤	The issuer’s governance structure and practices; and

➤	The issuer’s track record of accountability to shareholders.Restricting Binding Shareholder Proposals

Generally vote against or withhold from members of the governance committee if:

1.7.

The company’s charter imposes undue restrictions on shareholders’ ability to amend the bylaws. Such restrictions include, but are not limited to: outright prohibition on the submission of binding shareholder proposals, or share ownership requirements or time holding requirements in excess of SEC Rule 14a-8. Vote against on an ongoing basis.

Problematic Audit-Related Practices

Generally vote against or withhold from the members of the Audit Committee if:

1.8.	The non-audit fees paid to the auditor are excessive (see discussion under “Auditor Ratification”);
1.9.	The company receives an adverse opinion on the company’s financial statements from its auditor; or
1.10.	There is persuasive evidence that the Audit Committee entered into an inappropriate indemnification agreement with its auditor that limits the ability of the company, or its shareholders, to pursue legitimate legal recourse against the audit firm.

Vote case-by-case on members of the Audit Committee and potentially the full board if:

1.11.

Poor accounting practices are identified that rise to a level of serious concern, such as: fraud; misapplication of GAAP; and material weaknesses identified in Section 404 disclosures. Examine the severity, breadth, chronological sequence, and duration, as well as the company’s efforts at remediation or corrective actions, in determining whether withhold/against votes are warranted.

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Problematic Compensation Practices/Pay for Performance Misalignment

In the absence of an Advisory Vote on Executive Compensation ballot item or in egregious situations, vote against or withhold from the members of the Compensation Committee and potentially the full board if:

1.12.	There is a significant misalignment between CEO pay and company performance (pay for performance);
1.13.	The company maintains significant problematic pay practices;
1.14.	The board exhibits a significant level of poor communication and responsiveness to shareholders;
1.15.	The company fails to submit one-time transfers of stock options to a shareholder vote; or
1.16.	The company fails to fulfill the terms of a burn rate commitment made to shareholders.

Vote case-by-case on Compensation Committee members (or, in exceptional cases, the full board) and the Management Say-on-Pay proposal if:

1.17.

The company’s previous say-on-pay received the support of less than 70 percent of votes cast, taking into account:

➤	The company's response, including:

➤	Disclosure of engagement efforts with major institutional investors regarding the issues that contributed to the low level of support;
➤	Specific actions taken to address the issues that contributed to the low level of support;
➤	Other recent compensation actions taken by the company;

➤	Whether the issues raised are recurring or isolated;
➤	The company's ownership structure; and
➤	Whether the support level was less than 50 percent, which would warrant the highest degree of responsiveness.

Unilateral Bylaw/Charter Amendments and Problematic Capital Structures

1.18.

Generally vote against or withhold from directors individually, committee members, or the entire board (except new nominees, who should be considered case-by-case) if the board amends the company's bylaws or charter without shareholder approval in a manner that materially diminishes shareholders' rights or that could adversely impact shareholders, considering the following factors:

➤	The board's rationale for adopting the bylaw/charter amendment without shareholder ratification;
➤	Disclosure by the company of any significant engagement with shareholders regarding the amendment;
➤	The level of impairment of shareholders' rights caused by the board's unilateral amendment to the bylaws/charter;
➤	The board's track record with regard to unilateral board action on bylaw/charter amendments or other entrenchment provisions;
➤	The company's ownership structure;
➤	The company's existing governance provisions;
➤	The timing of the board's amendment to the bylaws/charter in connection with a significant business development; and,
➤	Other factors, as deemed appropriate, that may be relevant to determine the impact of the amendment on shareholders.

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Unless the adverse amendment is reversed or submitted to a binding shareholder vote, in subsequent years vote case-by-case on director nominees. Generally vote against (except new nominees, who should be considered case-by-case) if the directors:

➤	Classified the board;
➤	Adopted supermajority vote requirements to amend the bylaws or charter; or
➤	Eliminated shareholders' ability to amend bylaws.

1.19.

For newly public companies, generally vote against or withhold from directors individually, committee members, or the entire board (except new nominees, who should be considered case-by-case) if, prior to or in connection with the company's public offering, the company or its board adopted bylaw or charter provisions materially adverse to shareholder rights, or implemented a multi-class capital structure in which the classes have unequal voting rights considering the following factors:

➤	The level of impairment of shareholders' rights;
➤	The disclosed rationale;
➤	The ability to change the governance structure (e.g., limitations on shareholders’ right to amend the bylaws or charter, or supermajority vote requirements to amend the bylaws or charter);

➤	The ability of shareholders to hold directors accountable through annual director elections, or whether the company has a classified board structure;

➤	Any reasonable sunset provision; and

➤	Other relevant factors.

Unless the adverse provision is reversed or submitted to a vote of public shareholders, vote case-by-case on director nominees in subsequent years.

Governance Failures

Under extraordinary circumstances, vote against or withhold from directors individually, committee members, or the entire board, due to:

1.20.	Material failures of governance, stewardship, risk oversight⁽³⁾, or fiduciary responsibilities at the company;
1.21.	Failure to replace management as appropriate; or
1.22.	Egregious actions related to a director’s service on other boards that raise substantial doubt about his or her ability to effectively oversee management and serve the best interests of shareholders at any company.

2. Responsiveness

Vote case-by-case on individual directors, committee members, or the entire board of directors as appropriate if:

2.1.	The board failed to act on a shareholder proposal that received the support of a majority of the shares cast in the previous year. Factors that will be considered are:

➤	Disclosed outreach efforts by the board to shareholders in the wake of the vote;
➤	Rationale provided in the proxy statement for the level of implementation;
➤	The subject matter of the proposal;
➤	The level of support for and opposition to the resolution in past meetings;
➤	Actions taken by the board in response to the majority vote and its engagement with shareholders;

⁽³⁾	Examples of failure of risk oversight include, but are not limited to: bribery; large or serial fines or sanctions from regulatory bodies; significant adverse legal judgments or settlements; hedging of company stock; or significant pledging of company stock.

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➤	The continuation of the underlying issue as a voting item on the ballot (as either shareholder or management proposals); and
➤	Other factors as appropriate.

2.2.	The board failed to act on takeover offers where the majority of shares are tendered;
2.3.	At the previous board election, any director received more than 50 percent withhold/against votes of the shares cast and the company has failed to address the issue(s) that caused the high withhold/against vote;
2.4.	The board implements an advisory vote on executive compensation on a less frequent basis than the frequency that received the majority of votes cast at the most recent shareholder meeting at which shareholders voted on the say-on-pay frequency; or

2.5. The board implements an advisory vote on executive compensation on a less frequent basis than the frequency that received a plurality, but not a majority, of the votes cast at the most recent shareholder meeting at which shareholders voted on the say-on-pay frequency, taking into account:

➤	The board's rationale for selecting a frequency that is different from the frequency that received a plurality;
➤	The company's ownership structure and vote results;
➤	ISS' analysis of whether there are compensation concerns or a history of problematic compensation practices; and
➤	The previous year's support level on the company's say-on-pay proposal.

3. Composition

Attendance at Board and Committee Meetings:

3.1.

Generally vote against or withhold from directors (except new nominees, who should be considered case-by-case⁽⁴⁾ who attend less than 75 percent of the aggregate of their board and committee meetings for the period for which they served, unless an acceptable reason for absences is disclosed in the proxy or another SEC filing. Acceptable reasons for director absences are generally limited to the following:

➤	Medical issues/illness;
➤	Family emergencies; and
➤	Missing only one meeting (when the total of all meetings is three or fewer).

3.2.	If the proxy disclosure is unclear and insufficient to determine whether a director attended at least 75 percent of the aggregate of his/her board and committee meetings during his/her period of service, vote against or withhold from the director(s) in question.

Overboarded Directors:

Generally vote against or withhold from individual directors who:

3.3. Sit on more than five public company boards; or

3.4.	CEOs of public companies who sit on the boards of more than two public companies besides their own— withhold only at their outside boards⁽⁵⁾.

⁽⁴⁾	For new nominees only, schedule conflicts due to commitments made prior to their appointment to the board are considered if disclosed in the proxy or another SEC filing.

⁽⁵⁾

Although all of a CEO’s subsidiary boards will be counted as separate boards, ISS will not recommend a withhold vote from the CEO of a parent company board or any of the controlled (>50 percent ownership) subsidiaries of that parent, but may do so at subsidiaries that are less than 50 percent controlled and boards outside the parent/subsidiary relationships.

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4. Independence

Vote against or withhold from Inside Directors and Affiliated Outside Directors (per the Categorization of Directors) when:

4.1.	The inside or affiliated outside director serves on any of the three key committees: audit, compensation, or nominating;
4.2.	The company lacks an audit, compensation, or nominating committee so that the full board functions as that committee;
4.3.	The company lacks a formal nominating committee, even if the board attests that the independent directors fulfill the functions of such a committee; or
4.4.	Independent directors make up less than a majority of the directors.

Independent Chair (Separate Chair/CEO)

➤	General Recommendation: Generally vote for shareholder proposals requiring that the chairman’s position be filled by an independent director, taking into consideration the following:

➤	The scope of the proposal;
➤	The company's current board leadership structure;
➤	The company's governance structure and practices;
➤	Company performance; and
➤	Any other relevant factors that may be applicable.

Regarding the scope of the proposal, consider whether the proposal is precatory or binding and whether the proposal is seeking an immediate change in the chairman role or the policy can be implemented at the next CEO transition.

Under the review of the company's board leadership structure, ISS may support the proposal under the following scenarios absent a compelling rationale: the presence of an executive or non-independent chair in addition to the CEO; a recent recombination of the role of CEO and chair; and/or departure from a structure with an independent chair. ISS will also consider any recent transitions in board leadership and the effect such transitions may have on independent board leadership as well as the designation of a lead director role.

When considering the governance structure, ISS will consider the overall independence of the board, the independence of key committees, the establishment of governance guidelines, board tenure and its relationship to CEO tenure, and any other factors that may be relevant. Any concerns about a company's governance structure will weigh in favor of support for the proposal.

The review of the company's governance practices may include, but is not limited to, poor compensation practices, material failures of governance and risk oversight, related-party transactions or other issues putting director independence at risk, corporate or management scandals, and actions by management or the board with potential or realized negative impact on shareholders. Any such practices may suggest a need for more independent oversight at the company thus warranting support of the proposal.

ISS' performance assessment will generally consider one-, three-, and five-year TSR compared to the company's peers and the market as a whole. While poor performance will weigh in favor of the adoption of an independent chair policy, strong performance over the long term will be considered a mitigating factor when determining whether the proposed leadership change warrants support.

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Proxy Access

➤	General Recommendation: Generally vote for management and shareholder proposals for proxy access with the following provisions:

➤	Ownership threshold: maximum requirement not more than three percent (3%) of the voting power;
➤	Ownership duration: maximum requirement not longer than three (3) years of continuous ownership for each member of the nominating group;
➤	Aggregation: minimal or no limits on the number of shareholders permitted to form a nominating group;
➤	Cap: cap on nominees of generally twenty-five percent (25%) of the board.

Review for reasonableness any other restrictions on the right of proxy access.

Generally vote against proposals that are more restrictive than these guidelines.

Proxy Contests/Proxy Access — Voting for Director Nominees in Contested Elections

➤	General Recommendation: Vote case-by-case on the election of directors in contested elections, considering the following factors:

➤	Long-term financial performance of the company relative to its industry;
➤	Management’s track record;
➤	Background to the contested election;
➤	Nominee qualifications and any compensatory arrangements;
➤	Strategic plan of dissident slate and quality of the critique against management;
➤	Likelihood that the proposed goals and objectives can be achieved (both slates); and
➤	Stock ownership positions.

In the case of candidates nominated pursuant to proxy access, vote case-by-case considering any applicable factors listed above or additional factors which may be relevant, including those that are specific to the company, to the nominee(s) and/or to the nature of the election (such as whether or not there are more candidates than board seats).

CAPITAL/RESTRUCTURING

Capital

Common Stock Authorization

➤	General Recommendation: Vote for proposals to increase the number of authorized common shares where the primary purpose of the increase is to issue shares in connection with a transaction on the same ballot that warrants support.

Vote against proposals at companies with more than one class of common stock to increase the number of authorized shares of the class of common stock that has superior voting rights.

Vote against proposals to increase the number of authorized common shares if a vote for a reverse stock split on the same ballot is warranted despite the fact that the authorized shares would not be reduced proportionally.

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Vote case-by-case on all other proposals to increase the number of shares of common stock authorized for issuance. Take into account company-specific factors that include, at a minimum, the following:

➤	Past Board Performance:

➤	The company's use of authorized shares during the last three years

➤	The Current Request:

➤	Disclosure in the proxy statement of the specific purposes of the proposed increase;
➤	Disclosure in the proxy statement of specific and severe risks to shareholders of not approving the request; and
➤	The dilutive impact of the request as determined relative to an allowable increase calculated by ISS (typically 100 percent of existing authorized shares) that reflects the company's need for shares and total shareholder returns.

ISS will apply the relevant allowable increase below to requests to increase common stock that are for general corporate purposes (or to the general corporate purposes portion of a request that also includes a specific need):

A.	Most companies: 100 percent of existing authorized shares.
B.	Companies with less than 50 percent of existing authorized shares either outstanding or reserved for issuance: 50 percent of existing authorized shares.
C.	Companies with one- and three-year total shareholder returns (TSRs) in the bottom 10 percent of the U.S. market as of the end of the calendar quarter that is closest to their most recent fiscal year end: 50 percent of existing authorized shares.
D.	Companies at which both conditions (B and C) above are both present: 25 percent of existing authorized shares.

If there is an acquisition, private placement, or similar transaction on the ballot (not including equity incentive plans) that ISS is recommending FOR, the allowable increase will be the greater of (i) twice the amount needed to support the transactions on the ballot, and (ii) the allowable increase as calculated above.

Mergers and Acquisitions

➤	General Recommendation: Vote case-by-case on mergers and acquisitions. Review and evaluate the merits and drawbacks of the proposed transaction, balancing various and sometimes countervailing factors including:

➤	Valuation - Is the value to be received by the target shareholders (or paid by the acquirer) reasonable? While the fairness opinion may provide an initial starting point for assessing valuation reasonableness, emphasis is placed on the offer premium, market reaction, and strategic rationale.

➤	Market reaction - How has the market responded to the proposed deal? A negative market reaction should cause closer scrutiny of a deal.
➤	Strategic rationale - Does the deal make sense strategically? From where is the value derived? Cost and revenue synergies should not be overly aggressive or optimistic, but reasonably achievable. Management should also have a favorable track record of successful integration of historical acquisitions.
➤	Negotiations and process - Were the terms of the transaction negotiated at arm's-length? Was the process fair and equitable? A fair process helps to ensure the best price for shareholders. Significant negotiation "wins" can also signify the deal makers' competency. The comprehensiveness of the sales process (e.g., full auction, partial auction, no auction) can also affect shareholder value.
➤	Conflicts of interest - Are insiders benefiting from the transaction disproportionately and inappropriately as compared to non-insider shareholders? As the result of potential conflicts, the directors and officers of the company may be more likely to vote to approve a merger than if they did not hold these interests. Consider whether these interests

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may have influenced these directors and officers to support or recommend the merger. The CIC figure presented in the "ISS Transaction Summary" section of this report is an aggregate figure that can in certain cases be a misleading indicator of the true value transfer from shareholders to insiders. Where such figure appears to be excessive, analyze the underlying assumptions to determine whether a potential conflict exists.

➤

Governance - Will the combined company have a better or worse governance profile than the current governance profiles of the respective parties to the transaction? If the governance profile is to change for the worse, the burden is on the company to prove that other issues (such as valuation) outweigh any deterioration in governance.

COMPENSATION

Executive Pay Evaluation

Underlying all evaluations are five global principles that most investors expect corporations to adhere to in designing and administering executive and director compensation programs:

1.	Maintain appropriate pay-for-performance alignment, with emphasis on long-term shareholder value: This principle encompasses overall executive pay practices, which must be designed to attract, retain, and appropriately motivate the key employees who drive shareholder value creation over the long term. It will take into consideration, among other factors, the link between pay and performance; the mix between fixed and variable pay; performance goals; and equity-based plan costs;
2.	Avoid arrangements that risk “pay for failure”: This principle addresses the appropriateness of long or indefinite contracts, excessive severance packages, and guaranteed compensation;
3.	Maintain an independent and effective compensation committee: This principle promotes oversight of executive pay programs by directors with appropriate skills, knowledge, experience, and a sound process for compensation decision-making (e.g., including access to independent expertise and advice when needed);
4.	Provide shareholders with clear, comprehensive compensation disclosures: This principle underscores the importance of informative and timely disclosures that enable shareholders to evaluate executive pay practices fully and fairly;
5.	Avoid inappropriate pay to non-executive directors: This principle recognizes the interests of shareholders in ensuring that compensation to outside directors does not compromise their independence and ability to make appropriate judgments in overseeing managers’ pay and performance. At the market level, it may incorporate a variety of generally accepted best practices.

B-10

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Table of Contents

2017 U.S. Concise Proxy Voting Guidelines

Advisory Votes on Executive Compensation—Management Proposals (Management Say-on-Pay)

➤	General Recommendation: Vote case-by-case on ballot items related to executive pay and practices, as well as certain aspects of outside director compensation.

Vote against Advisory Votes on Executive Compensation (Management Say-on-Pay or “MSOP”) if:

➤	There is a significant misalignment between CEO pay and company performance (pay for performance);
➤	The company maintains significant problematic pay practices;
➤	The board exhibits a significant level of poor communication and responsiveness to shareholders.

Vote against or withhold from the members of the Compensation Committee and potentially the full board if:

➤	There is no MSOP on the ballot, and an against vote on an MSOP is warranted due to pay-for-performance misalignment, problematic pay practices, or the lack of adequate responsiveness on compensation issues raised previously, or a combination thereof;

➤	The board fails to respond adequately to a previous MSOP proposal that received less than 70 percent support of votes cast;
➤	The company has recently practiced or approved problematic pay practices, including option repricing or option backdating; or
➤	The situation is egregious.
➤	Primary Evaluation Factors for Executive Pay

Primary Evaluation Factors for Executive Pay

Pay-for-Performance Evaluation

ISS annually conducts a pay-for-performance analysis to identify strong or satisfactory alignment between pay and performance over a sustained period. With respect to companies in the Russell 3000 or Russell 3000E Indices⁽⁶⁾, this analysis considers the following:

1.	Peer Group⁽⁷⁾ Alignment:

➤	The degree of alignment between the company's annualized TSR rank and the CEO's annualized total pay rank within a peer group, each measured over a three-year period.
➤	The multiple of the CEO's total pay relative to the peer group median.

2.	Absolute Alignment⁽⁸⁾– the absolute alignment between the trend in CEO pay and company TSR over the prior five fiscal years –i.e., the difference between the trend in annual pay changes and the trend in annualized TSR during the period.

If the above analysis demonstrates significant unsatisfactory long-term pay-for-performance alignment or, in the case of companies outside the Russell indices, misaligned pay and performance are otherwise suggested, our analysis may include any of the following qualitative factors, as relevant to evaluating how various pay elements may work to encourage or to undermine long-term value creation and alignment with shareholder interests:

⁽⁶⁾	The Russell 3000E Index includes approximately 4,000 of the largest U.S. equity securities.

⁽⁷⁾

The revised peer group is generally comprised of 14-24 companies that are selected using market cap, revenue (or assets for certain financial firms), GICS industry group, and company's selected peers' GICS industry group, with size constraints, via a process designed to select peers that are comparable to the subject company in terms of revenue/assets and industry, and also within a market-cap bucket that is reflective of the company's. For Oil, Gas & Consumable Fuels companies, market cap is the only size determinant.

⁽⁸⁾	Only Russell 3000 Index companies are subject to the Absolute Alignment analysis.

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2017 U.S. Concise Proxy Voting Guidelines

➤	The ratio of performance- to time-based equity awards;
➤	The overall ratio of performance-based compensation;
➤	The completeness of disclosure and rigor of performance goals;
➤	The company's peer group benchmarking practices;
➤	Actual results of financial/operational metrics, such as growth in revenue, profit, cash flow, etc., both absolute and relative to peers;
➤	Special circumstances related to, for example, a new CEO in the prior FY or anomalous equity grant practices (e.g., bi-annual awards);

➤	Realizable pay compared to grant pay; and

➤	Any other factors deemed relevant.

⁽⁹⁾	ISS research reports include realizable pay for S&P1500 companies.

Problematic Pay Practices

The focus is on executive compensation practices that contravene the global pay principles, including:

➤	Problematic practices related to non-performance-based compensation elements;
➤	Incentives that may motivate excessive risk-taking; and
➤	Options Backdating.

Problematic Pay Practices related to Non-Performance-Based Compensation Elements

Pay elements that are not directly based on performance are generally evaluated case-by-case considering the context of a company's overall pay program and demonstrated pay-for-performance philosophy. Please refer to ISS' Compensation FAQ document for detail on specific pay practices that have been identified as potentially problematic and may lead to negative recommendations if they are deemed to be inappropriate or unjustified relative to executive pay best practices. The list below highlights the problematic practices that carry significant weight in this overall consideration and may result in adverse vote recommendations:

➤	Repricing or replacing of underwater stock options/SARS without prior shareholder approval (including cash buyouts and voluntary surrender of underwater options);
➤	Excessive perquisites or tax gross-ups, including any gross-up related to a secular trust or restricted stock vesting;
➤	New or extended agreements that provide for:

➤	CIC payments exceeding 3 times base salary and average/target/most recent bonus;
➤	CIC severance payments without involuntary job loss or substantial diminution of duties ("single" or "modified single" triggers);
➤	CIC payments with excise tax gross-ups (including "modified" gross-ups);

➤	Insufficient executive compensation disclosure by externally-managed issuers (EMIs) such that a reasonable assessment of pay programs and practices applicable to the EMI's executives is not possible.

Incentives that may Motivate Excessive Risk-Taking

➤	Multi-year guaranteed bonuses;
➤	A single or common performance metric used for short- and long-term plans;
➤	Lucrative severance packages;
➤	High pay opportunities relative to industry peers;
➤	Disproportionate supplemental pensions; or
➤	Mega annual equity grants that provide unlimited upside with no downside risk.
➤	Factors that potentially mitigate the impact of risky incentives include rigorous claw-back provisions and robust stock ownership/holding guidelines.

Factors that potentially mitigate the impact of risky incentives include rigorous claw-back provisions and robust stock ownership/holding guidelines.

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2017 U.S. Concise Proxy Voting Guidelines

Options Backdating

The following factors should be examined case-by-case to allow for distinctions to be made between “sloppy” plan administration versus deliberate action or fraud:

➤	Reason and motive for the options backdating issue, such as inadvertent vs. deliberate grant date changes;
➤	Duration of options backdating;
➤	Size of restatement due to options backdating;
➤	Corrective actions taken by the board or compensation committee, such as canceling or re-pricing backdated options, the recouping of option gains on backdated grants; and
➤	Adoption of a grant policy that prohibits backdating, and creates a fixed grant schedule or window period for equity grants in the future.

Compensation Committee Communications and Responsiveness

Consider the following factors case-by-case when evaluating ballot items related to executive pay on the board’s responsiveness to investor input and engagement on compensation issues:

➤	Failure to respond to majority-supported shareholder proposals on executive pay topics; or
➤	Failure to adequately respond to the company's previous say-on-pay proposal that received the support of less than 70 percent of votes cast, taking into account:

➤	The company's response, including:

➤	Disclosure of engagement efforts with major institutional investors regarding the issues that contributed to the low level of support;
➤	Specific actions taken to address the issues that contributed to the low level of support;
➤	Other recent compensation actions taken by the company;

➤	Whether the issues raised are recurring or isolated;
➤	The company's ownership structure; and
➤	Whether the support level was less than 50 percent, which would warrant the highest degree of responsiveness.

Equity-Based and Other Incentive Plans

➤

General Recommendation: Vote case-by-case on certain equity-based compensation plans⁽¹¹⁾ depending on a combination of certain plan features and equity grant practices, where positive factors may counterbalance negative factors, and vice versa, as evaluated using an "equity plan scorecard" (EPSC) approach with three pillars:

➤	Plan Cost: The total estimated cost of the company’s equity plans relative to industry/market cap peers, measured by the company's estimated Shareholder Value Transfer (SVT) in relation to peers and considering both:

➤	SVT based on new shares requested plus shares remaining for future grants, plus outstanding unvested/unexercised grants; and
➤	SVT based only on new shares requested plus shares remaining for future grants.

➤	Plan Features:

➤	Automatic single-triggered award vesting upon a change in control (CIC);
➤	Discretionary vesting authority;
➤	Liberal share recycling on various award types;
➤	Lack of minimum vesting period for grants made under the plan.

➤	Grant Practices:

⁽¹¹⁾

Proposals evaluated under the EPSC policy generally include those to approve or amend (1) stock option plans for employees and/or employees and directors, (2) restricted stock plans for employees and/or employees and directors, and (3) omnibus stock incentive plans for employees and/or employees and directors.

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2017 U.S. Concise Proxy Voting Guidelines

➤	The company’s three year burn rate relative to its industry/market cap peers;
➤	Vesting requirements in most recent CEO equity grants (3-year look-back);
➤	The estimated duration of the plan (based on the sum of shares remaining available and the new shares requested, divided by the average annual shares granted in the prior three years);
➤	The proportion of the CEO's most recent equity grants/awards subject to performance conditions;
➤	Whether the company maintains a claw-back policy;
➤	Whether the company has established post exercise/vesting share-holding requirements.

Generally vote against the plan proposal if the combination of above factors indicates that the plan is not, overall, in shareholders' interests, or if any of the following egregious factors apply:

➤	Awards may vest in connection with a liberal change-of-control definition;
➤	The plan would permit repricing or cash buyout of underwater options without shareholder approval (either by expressly permitting it—for NYSE and Nasdaq listed companies—or by not prohibiting it when the company has a history of repricing—for non-listed companies);
➤	The plan is a vehicle for problematic pay practices or a significant pay-for-performance disconnect under certain circumstances; or
➤	Any other plan features are determined to have a significant negative impact on shareholder interests.

SOCIAL/ENVIRONMENTAL ISSUES (SHAREHOLDER PROPOSALS)

Global Approach

Issues covered under the policy include a wide range of topics, including consumer and product safety, environment and energy, labor standards and human rights, workplace and board diversity, and corporate political issues. While a variety of factors goes into each analysis, the overall principle guiding all vote recommendations focuses on how the proposal may enhance or protect shareholder value in either the short or long term.

➤	General Recommendation: Generally vote case-by-case, taking into consideration whether implementation of the proposal is likely to enhance or protect shareholder value, and in addition the following will also be considered:

➤	If the issues presented in the proposal are more appropriately or effectively dealt with through legislation or government regulation;
➤	If the company has already responded in an appropriate and sufficient manner to the issue(s) raised in the proposal;
➤	Whether the proposal's request is unduly burdensome (scope or timeframe) or overly prescriptive;
➤	The company's approach compared with any industry standard practices for addressing the issue(s) raised by the proposal;
➤	If the proposal requests increased disclosure or greater transparency, whether or not reasonable and sufficient information is currently available to shareholders from the company or from other publicly available sources; and
➤	If the proposal requests increased disclosure or greater transparency, whether or not implementation would reveal proprietary or confidential information that could place the company at a competitive disadvantage.

B-14

Enabling the financial community to manage governance risk for the benefit of shareholders.

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2017 U.S. Concise Proxy Voting Guidelines

Climate Change/Greenhouse Gas (GHG) Emissions

➤	General Recommendation: Generally vote for resolutions requesting that a company disclose information on the risks related to climate change on its operations and investments, such as financial, physical, or regulatory risks, considering:

➤	Whether the company already provides current, publicly-available information on the impact that climate change may have on the company as well as associated company policies and procedures to address related risks and/or opportunities;
➤	The company’s level of disclosure is at least comparable to that of industry peers; and
➤	There are no significant controversies, fines, penalties, or litigation associated with the company’s environmental performance.

Generally vote for proposals requesting a report on greenhouse gas (GHG) emissions from company operations and/or products and operations, unless:

➤	The company already discloses current, publicly-available information on the impacts that GHG emissions may have on the company as well as associated company policies and procedures to address related risks and/or opportunities;
➤	The company's level of disclosure is comparable to that of industry peers; and
➤	There are no significant, controversies, fines, penalties, or litigation associated with the company's GHG emissions.

Vote case-by-case on proposals that call for the adoption of GHG reduction goals from products and operations, taking into account:

➤	Whether the company provides disclosure of year-over-year GHG emissions performance data;
➤	Whether company disclosure lags behind industry peers;
➤	The company's actual GHG emissions performance;
➤	The company's current GHG emission policies, oversight mechanisms, and related initiatives; and
➤	Whether the company has been the subject of recent, significant violations, fines, litigation, or controversy related to GHG emissions.

Board Diversity

➤	General Recommendation: Generally vote for requests for reports on a company's efforts to diversify the board, unless:

➤	The gender and racial minority representation of the company’s board is reasonably inclusive in relation to companies of similar size and business; and
➤	The board already reports on its nominating procedures and gender and racial minority initiatives on the board and within the company.

Vote case-by-case on proposals asking a company to increase the gender and racial minority representation on its board, taking into account:

➤	The degree of existing gender and racial minority diversity on the company’s board and among its executive officers;
➤	The level of gender and racial minority representation that exists at the company’s industry peers;
➤	The company’s established process for addressing gender and racial minority board representation;
➤	Whether the proposal includes an overly prescriptive request to amend nominating committee charter language;
➤	The independence of the company’s nominating committee;
➤	Whether the company uses an outside search firm to identify potential director nominees; and
➤	Whether the company has had recent controversies, fines, or litigation regarding equal employment practices.

B-15

Enabling the financial community to manage governance risk for the benefit of shareholders.

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2017 U.S. Concise Proxy Voting Guidelines

Sustainability Reporting

➤	General Recommendation: Generally vote for proposals requesting that a company report on its policies, initiatives, and oversight mechanisms related to social, economic, and environmental sustainability, unless:

➤	The company already discloses similar information through existing reports or policies such as an environment, health, and safety (EHS) report; a comprehensive code of corporate conduct; and/or a diversity report; or
➤	The company has formally committed to the implementation of a reporting program based on Global Reporting Initiative (GRI) guidelines or a similar standard within a specified time frame.

Environmental, Social, and Governance (ESG) Compensation-Related Proposals

➤	General Recommendation: Vote case-by-case on proposals to link, or report on linking, executive compensation to sustainability (environmental and social) criteria, considering:

➤	Whether the company has significant and/or persistent controversies or regulatory violations regarding social and/or environmental issues;
➤	Whether the company has management systems and oversight mechanisms in place regarding its social and environmental performance;
➤	The degree to which industry peers have incorporated similar non-financial performance criteria in their executive compensation practices; and
➤	The company's current level of disclosure regarding its environmental and social performance.

This document and all of the information contained in it, including without limitation all text, data, graphs, and charts (collectively, the "Information") is the property of Institutional Shareholder Services Inc. (ISS), its subsidiaries, or, in some cases third party suppliers.

The Information has not been submitted to, nor received approval from, the United States Securities and Exchange Commission or any other regulatory body. None of the Information constitutes an offer to sell (or a solicitation of an offer to buy), or a promotion or recommendation of, any security, financial product or other investment vehicle or any trading strategy, and ISS does not endorse, approve, or otherwise express any opinion regarding any issuer, securities, financial products or instruments or trading strategies.

The user of the Information assumes the entire risk of any use it may make or permit to be made of the Information.

ISS MAKES NO EXPRESS OR IMPLIED WARRANTIES OR REPRESENTATIONS WITH RESPECT TO THE INFORMATION AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES (INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF ORIGINALITY, ACCURACY, TIMELINESS, NON-INFRINGEMENT, COMPLETENESS, MERCHANTABILITY, AND FITNESS for A PARTICULAR PURPOSE) WITH RESPECT TO ANY OF THE INFORMATION.

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Without limiting any of the foregoing and to the maximum extent permitted by law, in no event shall ISS have any liability regarding any of the Information for any direct, indirect, special, punitive, consequential (including lost profits), or any other damages even if notified of the possibility of such damages. The foregoing shall not exclude or limit any liability that may not by applicable law be excluded or limited.

The Global Leader In Corporate Governance

www.issgovernance.com

B-17

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Part C – Other Information

Item 28.

Exhibits

EXHIBIT NO. DESCRIPTION

(a)

(1) Declaration of Trust of Registrant (1)

(2) Amended and Restated Declaration of Trust, dated June 12, 2017 (10)

(b)

By-Laws of the Registrant (2)

(c)

Amended and Restated Establishment and Designation of Series dated March 21, 2011 (6)

(d)

(1) Investment Management Agreement dated December 6, 2010 (8)

(2) Investment Management Agreement dated April 11, 2011 (8)

(3) Expense Reimbursement, Fee Waiver and Recovery Agreement dated December 6, 2010 (8)

(4) Exhibit A to Expense Reimbursement, Fee Waiver and Recovery Agreement (10)

(e)

(1) Distribution Agreement dated October 12, 2010 (5)

(2) Amended Exhibit A to Distribution Agreement dated May 6, 2011 (7)

(f)

Not Applicable

(g)

(1) Custody Agreement between the Registrant and The Bank of New York (4)

(2) Amended Schedule II to the Custody Agreement between the Registrant and The Bank of New York dated as of May 6, 2011 (7)

(h)

(1) Transfer Agency Agreement between the Registrant and The Bank of New York dated May 4, 2007 (4)

(2) Administration and Accounting Agreement between the Registrant and The Bank of New York dated May 4, 2007 (4)

(3) Form of Subscription Agreement (2)

(4) Form of Participant Agreement (2)

(5) Board Administration Services Agreement among PFPC, Inc., First Trust Exchange-Traded Fund and First Trust Exchange-Traded AlphaDEX^®Fund dated February 15, 2007 (3)

(6) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Consumer Discretionary AlphaDEX^® Fund dated April 26, 2007 (2)

(7) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Consumer Staples AlphaDEX^® Fund dated April 26, 2007 (2)

(8) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Energy AlphaDEX^® Fund dated April 26, 2007 (2)

(9) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Financials AlphaDEX^® Fund dated April 26, 2007 (2)

(10) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Health Care AlphaDEX^® Fund dated April 26, 2007 (2)

(11) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Industrials AlphaDEX^® Fund dated April 26, 2007 (2)

(12) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Materials AlphaDEX^® Fund dated April 26, 2007 (2)

(13) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Technology AlphaDEX^® Fund dated April 26, 2007 (2)

(14) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Utilities AlphaDEX^® Fund dated April 26, 2007 (2)

(15) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Large Cap Core AlphaDEX^® Fund dated April 26, 2007 (2)

(16) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Mid Cap Core AlphaDEX^® Fund dated April 26, 2007 (2)

(17) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Small Cap Core AlphaDEX^® Fund dated April 26, 2007 (2)

(18) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Large Cap Value Opportunities AlphaDEX^®Fund dated April 26, 2007 (2)

(19) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Mid Cap Growth Opportunities AlphaDEX^® Fund dated April 26, 2007 (2)

(20) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Multi Cap Value AlphaDEX^® Fund dated April 26, 2007 (2)

(21) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Multi Cap Growth AlphaDEX^® Fund dated April 26, 2007 (2)

(22) Amendment No. 1 to the Sublicense Agreement dated as of April 26, 2007, by and among First Trust Portfolios L.P., First Trust Advisors L.P., American Stock Exchange LLC and First Trust Industrials/Producer Durables AlphaDEX^® Fund dated May 8, 2007 (4)

(23) Amended Exhibit A to the Transfer Agency Agreement between the Registrant and The Bank of New York dated as of May 6, 2011 (7)

(24) Amended Exhibit A to the Administration and Accounting Agreement between the Registrant and The Bank of New York dated as of May 6, 2011 (7)

(25) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Mid Cap Value AlphaDEX^® Fund dated April 8, 2011 (8)

(26) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Mid Cap Growth AlphaDEX^® Fund dated April 8, 2011 (8)

(27) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Small Cap Growth AlphaDEX^® Fund dated April 8, 2011 (8)

(28) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Small Cap Value AlphaDEX^® Fund dated April 8, 2011 (8)

(29) Sublicense Agreement by and among First Trust Portfolios L.P., First Trust Advisors L.P., Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. and First Trust Mega Cap AlphaDEX^® Fund dated May 5, 2011 (8)

(i)

Not Applicable

(j)

Consent of Independent Registered Public Accounting Firm, dated November 28, 2017 (10)

(k)

Not Applicable

(l)

Not Applicable

(m)

(1) 12b-1 Service Plan (2)

(m)

(2) 12b-1 Plan Extension Letter Agreement dated September 22, 2017 (10)

(n)

Not Applicable

(o)

Not Applicable

(p)

(1) First Trust Advisors L.P. and First Trust Portfolios L.P. Code of Ethics amended on December 31, 2012 (8)

(2) First Trust Funds Code of Ethics, amended on March 22, 2010 (8)

(q)

Powers of Attorney for Messrs. Bowen, Erickson, Kadlec, Keith and Nielson authorizing W. Scott Jardine, James M. Dykas, Kristi A. Maher and Eric F. Fess to execute the Registration Statement (9)

(1)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on February 26, 2007.

(2)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on April 27, 2007.

(3)

Incorporated by reference to First Trust Exchange-Traded Fund’s Registration Statement on Form N-1A (File No. 333-125751) filed on June 18, 2007.

(4)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on November 19, 2007.

(5)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on November 29, 2010.

(6)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on March 25, 2011.

(7)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on May 10, 2011.

(8)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on November 22, 2013.

(9)

Incorporated by reference to the Registrant’s Registration Statement on Form N-1A (File No. 333-140895) filed on February 3, 2016.

(10)

Filed herewith.

Item 29.

Persons Controlled by or under Common Control with Registrant

Not Applicable

Item 30.

Indemnification

Section 9.5 of the Registrant’s Declaration of Trust provides as follows:

Section 9.5. Indemnification and Advancement of Expenses. Subject to the exceptions and limitations contained in this Section 9.5, every person who is, or has been, a Trustee, officer, or employee of the Trust, including persons who serve at the request of the Trust as directors, trustees, officers, employees or agents of another organization in which the Trust has an interest as a shareholder, creditor or otherwise (hereinafter referred to as a “Covered Person”), shall be indemnified by the Trust to the fullest extent permitted by law against liability and against all expenses reasonably incurred or paid by him or in connection with any claim, action, suit or proceeding in which he becomes involved as a party or otherwise by virtue of his being or having been such a Trustee, director, officer, employee or agent and against amounts paid or incurred by him in settlement thereof.

No indemnification shall be provided hereunder to a Covered Person to the extent such indemnification is prohibited by applicable federal law.

The rights of indemnification herein provided may be insured against by policies maintained by the Trust, shall be severable, shall not affect any other rights to which any Covered Person may now or hereafter be entitled, shall continue as to a person who has ceased to be such a Covered Person and shall inure to the benefit of the heirs, executors and administrators of such a person.

Subject to applicable federal law, expenses of preparation and presentation of a defense to any claim, action, suit or proceeding subject to a claim for indemnification under this Section 9.5 shall be advanced by the Trust prior to final disposition thereof upon receipt of an undertaking by or on behalf of the recipient to repay such amount if it is ultimately determined that he is not entitled to indemnification under this Section 9.5.

To the extent that any determination is required to be made as to whether a Covered Person engaged in conduct for which indemnification is not provided as described herein, or as to whether there is reason to believe that a Covered Person ultimately will be found entitled to indemnification, the Person or Persons making the determination shall afford the Covered Person a rebuttable presumption that the Covered Person has not engaged in such conduct and that there is reason to believe that the Covered Person ultimately will be found entitled to indemnification.

As used in this Section 9.5, the words “claim,” “action,” “suit” or “proceeding” shall apply to all claims, demands, actions, suits, investigations, regulatory inquiries, proceedings or any other occurrence of a similar nature, whether actual or threatened and whether civil, criminal, administrative or other, including appeals, and the words “liability” and “expenses” shall include without limitation, attorneys’ fees, costs, judgments, amounts paid in settlement, fines, penalties and other liabilities.

Item 31.

Business and Other Connections of the Investment Adviser

First Trust Advisors L.P. (“First Trust”), investment adviser to the Registrant, serves as adviser or subadviser to various mutual funds, exchange-traded funds and closed-end funds and is the portfolio supervisor of certain unit investment trusts. Its principal address is 120 East Liberty Drive, Wheaton, Illinois 60187.

The principal business of certain of First Trust’s principal executive officers involves various activities in connection with the family of unit investment trusts sponsored by First Trust Portfolios L.P. (“FTP”). FTP’s principal address is 120 East Liberty Drive, Wheaton, Illinois 60187.

Information as to other business, profession, vocation or employment during the past two years of the officers and directors of First Trust is as follows:

Name and Position with First Trust	Employment During Past Two Years
Andrew S. Roggensack, President	Managing Director and President, First Trust
R. Scott Hall, Managing Director	Managing Director, First Trust
Ronald D. McAlister, Managing Director	Managing Director, First Trust
David G. McGarel, Chief Investment Officer, Chief Operating Officer and Managing Director	Managing Director; Senior Vice President, First Trust
Kathleen Brown, Chief Compliance Officer and Senior Vice President	Chief Compliance Officer and Senior Vice President, First Trust
Brian Wesbury, Chief Economist and Senior Vice President	Chief Economist and Senior Vice President, First Trust

Item 32.

Principal Underwriter

(a) FTP serves as principal underwriter of the shares of the Registrant, First Trust Exchange-Traded Fund, First Trust Exchange-Traded Fund II, First Trust Exchange-Traded Fund III, First Trust Exchange-Traded Fund IV, First Trust Exchange-Traded Fund V, First Trust Exchange Traded Fund VI, First Trust Exchange-Traded Fund VII, First Trust Exchange-Traded Fund VIII, First Trust Exchange-Traded AlphaDEX^®Fund II, First Trust Variable Insurance Trust and First Trust Series Fund. FTP serves as principal underwriter and depositor of the following investment companies registered as unit investment trusts: the First Trust Combined Series, FT Series (formerly known as the First Trust Special Situations Trust), the First Trust Insured Corporate Trust, the First Trust of Insured Municipal Bonds, and the First Trust GNMA. The name of each director, officer and partner of FTP is provided below.

(b) Positions and Offices with Underwriter.

Name and Principal Business Address*	Positions and Offices with Underwriter	Positions and Offices with Fund
The Charger Corporation	General Partner	None
Grace Partners of DuPage L.P.	Limited Partner	None
James A. Bowen	Chief Executive Officer and Managing Director	Trustee and Chairman of the Board
James M. Dykas	Chief Operating Officer, Controller and Managing Director	President and Chief Executive Officer
Frank L. Fichera	Managing Director	None
Russell J. Graham	Managing Director	None
R. Scott Hall	Managing Director	None
W. Scott Jardine	General Counsel, Secretary and Managing Director	Secretary
Daniel J. Lindquist	Managing Director	Vice President
Ronald D. McAlister	Managing Director	None
David G. McGarel	Managing Director	None
Richard A. Olson	Managing Director	None
Marisa Bowen	Managing Director	None
Andrew S. Roggensack	President and Managing Director	None
Kristi A. Maher	Deputy General Counsel	Chief Compliance Officer and Assistant Secretary
* All addresses are 120 East Liberty Drive, Wheaton, Illinois 60187.

Item 33.

Location of Accounts and Records

First Trust, 120 East Liberty Drive, Wheaton, Illinois 60187, maintains the Registrant’s organizational documents, minutes of meetings, contracts of the Registrant and all advisory material of the investment adviser.

Item 34.

Management Services

Not Applicable

Item 35.

Undertakings

Not Applicable

Signatures

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized in the City of Wheaton, and State of Illinois on the 28th day of November, 2017.

	First Trust Exchange-Traded AlphaDEX^® Fund
	By:	/s/ James M. Dykas
		James M. Dykas, President and Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the date indicated:

Signature	Title		Date
/s/ James M. Dykas	President and Chief Executive Officer		November 28, 2017
James M. Dykas
/s/ Donald P. Swade	Treasurer, Chief Financial Officer and Chief Accounting Officer		November 28, 2017
Donald P. Swade
James A. Bowen*	) Trustee )
	)
Richard E. Erickson*	) Trustee )
	)
Thomas R. Kadlec*	) Trustee )
	)	By:	/s/ W. Scott Jardine
Robert F. Keith*	) Trustee )		W. Scott Jardine Attorney-In-Fact
	)		November 28, 2017
Niel B. Nielson *	) Trustee )
	)

Original powers of attorney authorizing W. Scott Jardine, James M. Dykas, Eric F. Fess and Kristi A. Maher to execute Registrant's Registration Statement, and Amendments thereto, for each of the trustees of the Registrant on whose behalf this Registration Statement is filed, were previously executed, filed as an exhibit and are incorporated by reference herein.

Index to Exhibits

(a) (2)

Amended and Restated Declaration of Trust, dated June 12, 2017

(d) (4)

Exhibit A to Expense Reimbursement, Fee Waiver and Recovery Agreement

(j)

Consent of Independent Registered Public Accounting Firm, dated November 28, 2017

(m) (2)

12b-1 Plan Extension Letter Agreement dated September 22, 2017