Summary Prospectus		August 28, 2018
	Invesco Zacks Mid-Cap ETF NYSE Arca, Inc.

Before you invest, you may wish to review the Fund’s prospectus, which contains more information about the Fund and its risks. You can find the Fund’s prospectus and other information about the Fund online at www.invesco.com/etfprospectus. You can also get this information at no cost by calling Invesco Distributors, Inc. at (800) 983-0903 or by sending an e-mail request to etfinfo@invesco.com. The Fund’s prospectus and statement of additional information, both dated August 28, 2018 (as each may be amended or supplemented), are incorporated by reference into this Summary Prospectus.

Investment Objective

The Invesco Zacks Mid-Cap ETF (the “Fund”) seeks to track the investment results (before fees and expenses) of the Zacks Mid-Cap Core Index (the “Mid-Cap Core Index” or the “Underlying Index”).

Fund Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
Management Fees	0.50%
Other Expenses	0.24%
Acquired Fund Fees and Expenses(1)	0.03%
Total Annual Fund Operating Expenses	0.77%
Fee Waivers and Expense Assumption(2)(3)	0.09%
Total Annual Fund Operating Expenses After Fee Waivers and Expense Assumption	0.68%

(1) “Acquired Fund Fees and Expenses” are indirect fees and expenses that the Fund incurs from investing in the shares of other investment companies. Please note that the amount of Total Annual Fund Operating Expenses shown in the above table may differ from the ratio of expenses to average net assets included in the “Financial Highlights” section of this Prospectus, which reflects the operating expenses of the Fund and does not include indirect expenses such as Acquired Fund Fees and Expenses.

(2) Invesco Capital Management LLC (the “Adviser”) has agreed to waive fees and/or pay Fund expenses to the extent necessary to prevent the operating expenses of the Fund (excluding interest expenses, brokerage commissions and other trading expenses, sub-licensing fees, offering costs, taxes, Acquired Fund Fees and Expenses, if applicable, and extraordinary expenses) from exceeding 0.60% of the Fund’s average daily net assets per year (the “Expense Cap”) through at least April 6, 2020, and neither the Adviser nor the Fund can discontinue the agreement prior to its expiration. The fees waived and/or expenses borne by the Adviser are subject to recapture by the Adviser up to three years from the date the fees were waived or the expenses were incurred, but no recapture payment will be made by the Fund if it would result in the Fund exceeding (i) the Expense Cap or (ii) the expense cap in effect at the time the fees and/or expenses subject to recapture were waived and/or borne by the Adviser.

(3) The Adviser further agrees to reimburse the Fund in the amount equal to the licensing fees that the Fund pays that cause the Fund’s operating expenses (excluding interest expenses, offering costs, brokerage commissions and other trading expenses, taxes, Acquired Fund Fees and Expenses and extraordinary expenses) to exceed 0.65% through at least April 6, 2020.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are equal to the Total Annual Fund Operating Expenses After Fee Waivers and Expense Assumption for the contractual period above and the Total Annual Fund Operating Expenses thereafter. This example does not include the brokerage commissions that investors may pay to buy and sell Shares. Although your actual costs may be higher or lower, your costs, based on these assumptions, would be:

1 Year	3 Years	5 Years	10 Years
$69	$228	$410	$937

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate will cause the Fund to incur additional transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the fiscal year ended August 31, 2017, the portfolio turnover rate of Guggenheim Mid-Cap Core ETF (the “Predecessor Fund”) was 181% of the average value of the portfolio, excluding the value of portfolio securities received or delivered as a result of in-kind creations and redemptions. During the fiscal period September 1, 2017 to April 30, 2018, the portfolio turnover rate of the Predecessor Fund and the Fund was 136% of the average value of the portfolio, excluding the value of portfolio securities received or delivered as a result of in-kind creations and redemptions.

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Principal Investment Strategies

The Fund generally will invest at least 90% of its total assets in securities that comprise the Underlying Index and depositary receipts representing securities that comprise the Underlying Index (or underlying securities representing American depositary receipts (“ADRs”) that comprise the Underlying Index). As of June 30, 2018, the Underlying Index was comprised of 100 securities selected, according to the investment and other criteria in the Underlying Index methodology, from a universe of mid-capitalization securities including common stocks, master limited partnerships (“MLPs”), ADRs, real estate investment trusts (“REITs”) and business development companies (“BDCs”). The depositary receipts included in the Underlying Index may be sponsored or unsponsored. As of June 30, 2018, the mid-capitalization universe ranged from approximately $2 billion in market capitalization to $22 billion in market capitalization as defined by Zacks Investment Research, Inc. (“Zacks” or the “Index Provider”). Zacks, in accordance with the Underlying Index’s methodology, seeks to identify companies with potentially superior risk-return profiles by using a proprietary strategy that evaluates stocks on multiple factors, including their high long-term earnings growth rate, price-earnings ratio and short interest.

The Fund may invest directly in one or more underlying securities represented by depositary receipts included in the Underlying Index under the following limited circumstances: (a) when market conditions result in the underlying security providing improved liquidity relative to the depositary receipt; (b) when a depositary receipt is trading at a significantly different price than its underlying security; or (c) the timing of trade executions is improved due to the local market in which an underlying security is traded being open at different times than the market in which the security’s corresponding depositary receipt is traded.

The Fund generally invests in all of the securities comprising the Underlying Index in proportion to their weightings in the Underlying Index.

The Fund is “non-diversified” and therefore is not required to meet certain diversification requirements under the Investment Company Act of 1940, as amended (the “1940 Act”).

Concentration Policy. The Fund will concentrate its investments (i.e., invest more than 25% of the value of its net assets) in securities of issuers in any one industry or group of industries only to the extent that the Underlying Index reflects a concentration in that industry or group of industries. The Fund will not otherwise concentrate its investments in securities of issuers in any one industry or group of industries. As of April 30, 2018, the Fund had significant exposure to the banking industy sector. The Fund’s portfolio holdings, and the extent to which it concentrates in any industry or group of industries, are likely to change over time.

Principal Risks of Investing in the Fund

The following summarizes the principal risks of the Fund.

The Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective.

ADR Risk. ADRs are certificates that evidence ownership of shares of a foreign issuer and are alternatives to purchasing directly underlying foreign securities in their national markets and currencies. However, ADRs may be subject to certain of the risks associated with direct investments in the securities of foreign companies. Moreover, ADRs may not track the price of the underlying foreign securities on which they are based, and their value may change materially at times when U.S. markets are not open for trading.

Authorized Participant Concentration Risk. Only authorized participants (“APs”) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as APs and such APs have no obligation to submit creation or redemption orders. Consequently, there is no assurance that those APs will establish or maintain an active trading market for the Shares. This risk may be heightened to the extent that securities underlying the Fund are traded outside a collateralized settlement system. In that case, APs may be required to post collateral on certain trades on an agency basis (i.e., on behalf of other market participants), which only a limited number of APs may be able to do. In addition, to the extent that APs exit the business or are unable to proceed with processing creation and/or redemption orders with respect to the Fund and no other AP is able to step forward to create or redeem Creation Units (as defined below), this may result in a significantly diminished trading market for Shares, which may be more likely to trade at a premium or discount to the Fund’s net asset value (“NAV”) and to face trading halts and/or delisting. This risk may be heightened for the Fund because it invests in non-U.S. securities, which may have lower trading volumes.

Banking Industry Concentration Risk. The Fund may be susceptible to adverse economic or regulatory occurrences affecting the banking industry. Banks are subject to extensive government regulation that may affect the scope of their activities, their profitability, the prices that they can charge and the amount of capital that they must maintain. In addition, unstable interest rates can have a disproportionate effect on the banking industry; banks whose securities the Fund may purchase may themselves have concentrated portfolios of loans or investments that make them vulnerable to economic conditions that affect that industry. Increased competition also may adversely affect the profitability or viability of banks.

Equity Risk. Equity risk is the risk that the value of equity securities, including common stocks, may fall due to both changes in general economic conditions that impact the market as a whole, as well as factors that directly relate to a specific company or its industry. Such general economic conditions include changes in interest rates, periods of market turbulence or instability, or general and prolonged periods of economic decline and cyclical change. It is possible that a drop in the stock market may depress the price of most or all of the common stocks that the Fund holds. In addition, equity risk includes the risk that investor sentiment toward particular industries will become negative. The value of a company’s common stock may fall solely because of factors, such as an increase in production costs, that negatively impact other companies in the same region, industry or sector of the market. A company’s common stock also may decline significantly in price

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over a short period of time due to factors specific to that company, including decisions made by its management or lower demand for the company’s products or services. For example, an adverse event, such as an unfavorable earnings report or the failure to make anticipated dividend payments, may depress the value of common stock.

Financial Sector Risk. The market value of securities of issuers in the financial sector can be affected by factors such as adverse regulatory or economic occurrences affecting the financial sector, availability of credit, fluctuations in asset values, unstable interest rates, increased competition, continuing consolidations and development of new products and structures. Furthermore, increased government involvement in financial institutions, including measures such as taking ownership positions in such institutions, could result in a dilution in the value of the shares held by shareholders in such institutions.

Index Risk. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Underlying Index. Therefore, the Fund would not necessarily buy or sell a security unless that security is added or removed, respectively, from its Underlying Index, even if that security generally is underperforming.

Industry Concentration Risk. In following its methodology, the Underlying Index from time to time may be concentrated to a significant degree in securities of issuers located in a single industry or sector. To the extent that the Underlying Index concentrates in the securities of issuers in a particular industry or sector, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in an industry or sector, the Fund faces more risks than if it were diversified broadly over numerous industries or sectors. Such industry-based risks, any of which may adversely affect the companies in which the Fund invests, may include, but are not limited to, the following: general economic conditions or cyclical market patterns that could negatively affect supply and demand in a particular industry; competition for resources, adverse labor relations, political or world events; obsolescence of technologies; and increased competition or new product introductions that may affect the profitability or viability of companies in an industry. In addition, at times, such industry or sector may be out of favor and underperform other industries or the market as a whole.

Investments in BDCs Risk. Investments in BDCs may be subject to certain inherent risks. BDCs, generally invest in less mature private companies, which involve greater risk than well-established, publicly-traded companies. The 1940 Act imposes certain restraints upon the operations of a BDC and these limitations may prohibit the way that the BDC raises capital.

Investment in Investment Companies Risk. Investing in other investment companies, including exchange-traded funds (“ETFs”), BDCs and closed-end funds, subjects the Fund to those risks affecting the investment company, including the possibility that the value of the underlying securities held by the investment company could decrease or the portfolio becomes illiquid. Moreover, the Fund and its shareholders will incur its pro rata share of the underlying investment companies’ expenses, which will reduce the Fund’s performance, and the purchase of shares of

some investment companies (in the case of closed-end investment companies) may sometimes require the payment of substantial premiums above the value of such companies’ portfolio securities or NAVs. In addition, investments by the Fund in another ETF or closed-end fund are subject to, among other risks, the risk that the ETF’s or closed end fund’s shares may trade at a discount or premium relative to the NAV of the shares and the listing exchange may halt trading of the ETF’s or closed-end fund’s shares.

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.

Market Risk. Securities in the Underlying Index are subject to market fluctuations. You should anticipate that the value of the Shares will decline, more or less, in correlation with any decline in value of the securities in the Underlying Index.

Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for the Shares, losses from trading in secondary markets, and disruption in the creation/redemption process of the Fund. Any of these factors may lead to the Shares trading at a premium or discount to the Fund’s NAV.

Mid-Capitalization Company Risk. Investing in securities of mid-capitalization companies involves greater risk than customarily is associated with investing in larger, more established companies. These companies’ securities may be more volatile and less liquid than those of more established companies. These securities may have returns that vary, sometimes significantly, from the overall securities market. Often mid-capitalization companies and the industries in which they focus are still evolving, and, as a result, they may be more sensitive to changing market conditions.

Non-Correlation Risk. The Fund’s return may not match the return of the Underlying Index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the Underlying Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund’s securities holdings to reflect changes in the composition of the Underlying Index. In addition, the performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index resulting from legal restrictions, costs or liquidity constraints.

Non-Diversified Fund Risk. Because the Fund is non-diversified and can invest a greater portion of its assets in securities of individual issuers than a diversified fund, changes in the market value of a single investment could cause greater fluctuations in Share price than would occur in a diversified fund. This may increase the Fund’s volatility and cause the performance of a relatively small number of issuers to have a greater impact on the Fund’s performance.

Portfolio Turnover Risk. The Fund may engage in frequent trading of its portfolio securities in connection with the rebalancing or adjustment of the Underlying Index. A portfolio turnover rate of

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200%, for example, is equivalent to the Fund buying and selling all of its securities two times during the course of a year. A high portfolio turnover rate (such as 100% or more) could result in high brokerage costs for the Fund. While a high portfolio turnover rate can result in an increase in taxable capital gain distributions to the Fund’s shareholders, the Fund will seek to utilize the in-kind creation and redemption mechanism (described below) to minimize realization of capital gains to the extent possible.

REIT Risk. In addition to the risks pertaining to real estate investments more generally, REITs are subject to additional risks. The value of a REIT can depend on the structure of and cash flow generated by the REIT. REITs whose investments are concentrated in a limited number or type of properties, investments or narrow geographic area are subject to the risks affecting those properties or areas to a greater extent than a REIT with less concentrated investments. REITs are also subject to certain requirements under federal tax law. In addition, REITs may have expenses, including advisory and administration expenses, and the Fund and its shareholders will incur its pro rata share of the underlying expenses.

Risks of Investing in MLP Units. An MLP is an entity that is classified as a partnership under the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”), and whose partnership interests or “units” are traded on securities exchanges like shares of corporate stock. An investment in MLPs involves risks that differ from a similar investment in equity securities, such as common stock, of a corporation. Investments in MLPs units are subject to certain risks inherent in the structure of MLPs, including (i) tax risks, (ii) the limited ability to elect or remove management or the general partner or managing member, (iii) limited voting rights and (iv) conflicts of interest between the general partner or managing member and its affiliates and the limited partners or members.

Performance

The bar chart below shows how the Fund has performed. The table below the bar chart shows the Fund’s average annual total returns (before and after taxes). The bar chart and table provide an indication of the risks of investing in the Fund by showing how the Fund’s total returns have varied from year to year and by showing how the Fund’s average annual total returns compared with a broad measure of market performance and an additional index with characteristics relevant to the Fund. The Fund’s performance reflects fee waivers, absent which performance would have been lower. Although the information shown in the bar chart and the table gives you some idea of the risks involved in investing in the Fund, the Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future.

The Fund is the successor to the investment performance of the Predecessor Fund as a result of the reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on April 6, 2018. Accordingly, the performance information shown below for periods ending on or prior to April 6, 2018 is that of the Predecessor Fund. Updated performance information is available online at www.invesco.com/ETFs.

Annual Total Returns—Calendar Years

Best Quarter	Worst Quarter
21.08% (2nd Quarter 2009)	(20.31)% (4th Quarter 2008)

The return of the Fund for the year-to-date ending June 30, 2018 was (1.15)%.

Average Annual Total Returns for the Periods Ended December 31, 2017

After-tax returns in the table below are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

	1 Year			5 Years			10 Years
Return Before Taxes		21.71	%		15.56	%		10.80	%
Return After Taxes on Distributions		21.13	%		14.96	%		10.38	%
Return After Taxes on Distributions and Sale of Fund Shares		12.28	%		12.24	%		8.72	%
Zacks Mid-Cap Core Index (reflects no deduction for fees, expenses or taxes)		22.60	%		16.32	%		11.63	%
Russell Midcap® Index (reflects no deduction for fees, expenses or taxes)		18.52	%		14.96	%		9.11	%
S&P MidCap 400® Index(1) (reflects no deduction for fees, expenses or taxes)		16.24	%		15.01	%		9.97	%
S&P 500® Index(1) (reflects no deduction for fees, expenses or taxes)		21.83	%		15.79	%		8.50	%

(1) The Fund has elected to no longer use the S&P MidCap 400^® Index and S&P 500^® Index as additional measures of comparison to the Fund’s performance.

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Management of the Fund

Investment Adviser. Invesco Capital Management LLC (the “Adviser”).

Portfolio Managers. The following individuals are responsible jointly and primarily for the day-to-day management of the Fund’s portfolio:

Name	Title with Adviser/Trust	Date Began Managing the Fund
Peter Hubbard	Director of Portfolio Management of the Adviser and Vice President of the Trust	April 2018
Michael Jeanette	Senior Portfolio Manager of the Adviser	April 2018
Jonathan Nixon	Portfolio Manager of the Adviser	April 2018
Tony Seisser	Portfolio Manager of the Adviser	April 2018

Purchase and Sale of Shares

The Fund issues and redeems Shares at NAV only with APs and only in large blocks of 50,000 Shares (each block of Shares is called a “Creation Unit”) or multiples thereof (“Creation Unit Aggregations”), generally in exchange for the deposit or delivery of a basket of securities. However, the Fund also reserves the right to permit or require Creation Units to be issued in exchange for cash. Except when aggregated in Creation Units, the Shares are not redeemable securities of the Fund.

Individual Shares may be purchased and sold only on a national securities exchange through brokers. Shares are listed for trading on the NYSE Arca, Inc. and because the Shares trade at market prices rather than NAV, Shares may trade at prices greater than NAV (at a premium), at NAV, or less than NAV (at a discount).

Tax Information

The Fund’s distributions generally are taxed as ordinary income, capital gains or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account, in which case your distributions may be taxed as ordinary income when withdrawn from such account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund’s distributor or its related companies may pay the intermediary for certain Fund-related activities, including those that are designed to make the intermediary more knowledgeable about exchange traded products, such as the Fund, as well as for marketing, education or other initiatives related to the sale or promotion of Fund shares. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson or financial adviser to recommend the Fund over another investment. Ask your salesperson or financial adviser or visit your financial intermediary’s web-site for more information.

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