497

[On Chapman and Cutler LLP Letterhead]

July 6, 2018

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Re: Amplify ETF Trust
(Registration Nos. 333-207937; 811-23108)

Ladies and Gentlemen:

On behalf of Amplify ETF Trust (the “Registrant”), we are transmitting for electronic filing pursuant to Rule 497 under the Securities Act of 1933, as amended, the exhibits containing interactive data format risk/return summary information that mirrors the risk/return summary information in the copy of a supplement, in the form of a sticker, to the prospectus for the Registrant filed pursuant to Rule 497(e) on June 13, 2018. The Registration Statement relates to the Amplify Transformational Data Sharing ETF, a series of the Registrant.

If we may cooperate with you in any way in the processing of the Amendment, please telephone the undersigned at (312) 845-3484.

Very truly yours,
Chapman and Cutler llp
By:	/s/ Morrison C. Warren
	Morrison C. Warren

Enclosures

XML

Document and Entity Information	Total
Document And Entity Information
Document Type	497
Document Period End Date	Jan. 16, 2018
Registrant Name	Amplify ETF Trust
Central Index Key	0001633061
Amendment Flag	false
Document Creation Date	Jun. 13, 2018
Document Effective Date	Jun. 13, 2018
Prospectus Date	Jan. 16, 2018

XML

Amplify Transformational Data Sharing ETF

Amplify Transformational Data Sharing ETF

Summary Information

INVESTMENT OBJECTIVE

The Amplify Transformational Data Sharing ETF seeks to provide investors with total return.

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)

Annual Fund Operating Expenses	Amplify Transformational Data Sharing ETF Amplify Transformational Data Sharing ETF Shares
Management Fees	0.90%
Distribution and Service (12b-1) Fees	none
Other Expenses	none	[1]
Total Annual Fund Operating Expenses	0.90%
Fee Waiver	0.20%	[2]
Total Annual Fund Operating Expenses After Fee Waiver	0.70%

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 remain at current levels. 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:

Expense Example	One Year	Three Years
Amplify Transformational Data Sharing ETF | Amplify Transformational Data Sharing ETF Shares | USD ($)	72	267

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 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.

PRINCIPAL INVESTMENT STRATEGIES

The Fund is an actively managed ETF that seeks to provide total return by investing at least 80% of its net assets (including investment borrowings) in the equity securities of companies actively involved in the development and utilization of transformational data sharing technologies. The Fund may invest in non-U.S. equity securities, including depositary receipts. Toroso Investments, LLC ("Toroso") and CSAT Investment Advisory, L.P., d/b/a Exponential ETFs ("Exponential") serve as the investment sub-advisers to the Fund (the "Sub-Advisers"). Toroso manages the investment strategy and portfolio selection. Exponential constructs and implements Toroso's trade decisions.

In selecting companies that the portfolio managers believe are relevant to the Fund's investment theme, the portfolio managers seek to invest in companies developing or utilizing transformational data sharing technologies. These companies will primarily include, but are not limited to, those developing or utilizing blockchain-based and other distributed ledger technologies. The "blockchain" is a peer-to-peer shared, distributed ledger that facilitates the process of recording transactions and tracking assets in a business network. It derives its name from the way it stores transaction data – in blocks that are linked together to form a chain. As the number of transactions grow, so does the blockchain. Blocks record and confirm the time and sequence of transactions, which are then logged into the blockchain, within a discrete network governed by rules agreed on by the network participants. Although initially associated with digital commodities, it can be used to track tangible, intangible and digital assets and companies in all business sectors. Blockchains may also be private or public. The distinction between public and private blockchains is related to who is allowed to participate in the network, execute the consensus protocol and maintain the shared ledger. A public blockchain network is completely open and anyone can join and participate in the network. A private blockchain network requires an invitation and must be validated by either the network starter or by a set of rules put in place by the network starter.

In pursuing its investment strategy, the Fund's portfolio managers seek investments in companies across a wide variety of industries that are leading in the research, development, utilization and funding of transformational data sharing technologies. The Fund's portfolio managers determine whether a company is eligible for investment by the Fund based upon an examination of whether a company is committing material resources to transformational data sharing (including blockchain-based) technologies in one or more of the following ways:

• actively engaging in the research and development, proof-of-concept testing, and/or implementation of transformational data sharing technology: the Fund's portfolio managers review the scale, continuation and growth of such initiatives, and the dedication of organizational infrastructure (e.g. corporate divisions, number of employees) and capital to such activities.

• profiting from the demand for transformational data sharing applications such as transaction data, cryptocurrency and supply chain data: the Fund's portfolio managers evaluate companies for both direct profitability, obtained by providing direct access to transformational data sharing technology, and indirect profitability, obtained by benefitting from cost reductions and economies of scale through transformational data sharing technology implementation for its business.

• partnering with and/or directly investing in companies that are actively engaged in the development and/or use of transformational data sharing technology: the Fund's portfolio managers review both the number and size of partnership and/or projects invested, including a company's internal initiatives.

• acting as a member of multiple consortiums or groups dedicated to the exploration of transformational data sharing technology use: the Fund's portfolio managers review the number of consortiums or groups and size of investments, including a company's internal initiatives.

In reviewing the above criteria, the Fund's portfolio managers actively evaluate the legitimacy of each potential portfolio company's commitment to transformational data sharing technologies. In addition, the Fund's portfolio managers will construct the portfolio so that it meets the following standards:

• each security must be listed on a regulated stock exchange in the form of shares tradable for foreign investors without restrictions;

• at least 90% of securities issued by a U.S. company must have a minimum market capitalization of at least $75,000,000;

• each security issued by a non-U.S. company must have a minimum market capitalization of at least $100,000,000;

• each security must have a minimum global monthly trading volume of 250,000 shares, or minimum global notional volume traded per month of $25 million, averaged over the last six months.

The Fund's portfolio managers will further review these constituent companies and classify the companies into two groups:

• Core: companies are designated as "Core" if they derive significant direct revenue from transformational data sharing-related business and/or are among the largest five investors in transformtional data sharing-engaged companies, as defined by the portfolio managers.

• Secondary: companies are designated as "Secondary" if the company directly invests or partners in transformational data sharing technology companies, or participates in multiple blockchain industry consortiums.

The portfolio managers believe that an active management approach will enable the Fund to remain flexible and identify companies that are best positioned to profit from the developing transformational data sharing technology space. The Fund's portfolio managers will actively seek opportunities for the Fund to invest in new and emerging transformational data sharing technology companies meeting the Fund's eligibility criteria. Through portfolio management, the Fund's portfolio managers believe that there will be opportunities to take advantage of market pricing dislocations, and to purchase, sell or weight the Fund's portfolio holdings accordingly. The Fund's portfolio managers will initially have the following portfolio allocation: 70% Core constituents and 30% Secondary constituents. Initially, constituents will have an equal weighting within such groups. However, the Fund's portfolio managers will manage the portfolio to increase, decrease or eliminate weightings of the portfolio holdings, based upon its assessment of:

• changes in a company's business model or operations;

• a company's increase or decrease in transformational data sharing related revenue;

PRINCIPAL RISKS OF INVESTING IN THE FUND

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.

Active Market Risk. Although the Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained. Shares trade on the Exchange at market prices that may be below, at or above the Fund's net asset value. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments.

ADR and GDR Risk. ADRs are certificates that evidence ownership of shares of a foreign issuer and are alternatives to purchasing directly the underlying foreign securities in their national markets and currencies. GDRs are certificates issued by an international bank that generally are traded and denominated in the currencies of countries other than the home country of the issuer of the underlying shares. ADRs and GDRs may be subject to certain of the risks associated with direct investments in the securities of foreign companies, such as currency, political, economic and market risks, because their values depend on the performance of the non-dollar denominated underlying foreign securities. Certain countries may limit the ability to convert ADRs into the underlying foreign securities and vice versa, which may cause the securities of the foreign company to trade at a discount or premium to the market price of the related ADR. ADRs may be purchased through "sponsored" or "unsponsored" facilities. A sponsored facility is established jointly by a depositary and the issuer of the underlying security. A depositary may establish an unsponsored facility without participation by the issuer of the deposited security. Unsponsored receipts may involve higher expenses and may be less liquid. Holders of unsponsored ADRs generally bear all the costs of such facilities, and the depositary of an unsponsored facility frequently is under no obligation to distribute shareholder communications received from the issuer of the deposited security or to pass through voting rights to the holders of such receipts in respect of the deposited securities. GDRs can involve currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. Because the Fund's NAV is determined in U.S. dollars, the NAV of the Fund could decline if the currency of the non-U.S. market in which the Fund invests depreciates against the U.S. dollar, even if the value of the Fund's holdings, measured in the foreign currency, increases.

Authorized Participant Concentration Risk. Only an authorized participant (as defined in "Purchase and Sales of Shares") may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that act as authorized participants on an agency basis (i.e. on behalf of other market 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.

Below Net Asset Value Risk. The net asset value of Shares 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 the Exchange. The Fund cannot predict whether Shares will trade below (discount), at or above (premium) their 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.

Blockchain Investments Risk. An investment in companies actively engaged in blockchain technology may be subject to the following risks:

• The technology is new and many of its uses may be untested. The mechanics of using distributed ledger technology to transact in other types of assets, such as securities or derivatives, is less clear. There is no assurance that widespread adoption will occur. A lack of expansion in the usage of blockchain technology could adversely affect an investment in the Fund.

• Theft, loss or destruction. Transacting on a blockchain depends in part specifically on the use of cryptographic keys that are required to access a user's account (or "wallet"). The theft, loss or destruction of these keys impairs the value of ownership claims users have over the relevant assets being represented by the ledger (whether "smart contracts," securities, currency or other digital assets). The theft, loss or destruction of private or public keys needed to transact on a blockchain could also adversely affect a company's business or operations if it were dependent on the ledger.

• Competing platforms and technologies. The development and acceptance of competing platforms or technologies may cause consumers or investors to use an alternative to blockchains.

• Cyber security incidents. Cyber security incidents may compromise an issuer, its operations or its business. Cyber security incidents may also specifically target user's transaction history, digital assets, or identity, thereby leading to privacy concerns. In addition, certain features of blockchain technology, such as decentralization, open source protocol, and reliance on peer-to-peer connectivity, may increase the risk of fraud or cyber-attack by potentially reducing the likelihood of a coordinated response.

• Developmental risk. Blockchain technology may never develop optimized transactional processes that lead to realized economic returns for any company in which the Fund invests. Companies that are developing applications of blockchain technology applications may not in fact do so or may not be able to capitalize on those blockchain technologies. The development of new or competing platforms may cause consumers and investors to use alternatives to blockchains.

• Intellectual property claims. A proliferation of recent startups attempting to apply blockchain technology in different contexts means the possibility of conflicting intellectual property claims could be a risk to an issuer, its operations or its business. This could also pose a risk to blockchain platforms that permit transactions in digital securities. Regardless of the merit of any intellectual property or other legal action, any threatened action that reduces confidence in the viability of blockchain may adversely affect an investment in the Fund.

• Lack of liquid markets, and possible manipulation of blockchain-based assets. Digital assets that are represented and trade on a blockchain may not necessarily benefit from viable trading markets. Stock exchanges have listing requirements and vet issuers, and perhaps users. These conditions may not necessarily be replicated on a blockchain, depending on the platform's controls and other policies. The more lenient a blockchain is about vetting issuers of digital assets or users that transact on the platform, the higher the potential risk for fraud or the manipulation of digital assets. These factors may decrease liquidity or volume, or increase volatility of digital securities or other assets trading on a blockchain.

• Lack of regulation. Digital commodities and their associated platforms are largely unregulated, and the regulatory environment is rapidly evolving. Because blockchain works by having every transaction build on every other transaction, participants can self-police any corruption, which can mitigate the need to depend on the current level of legal or government safeguards to monitor and control the flow of business transactions. As a result, companies engaged in such blockchain activities may be exposed to adverse regulatory action, fraudulent activity or even failure.

• Third party product defects or vulnerabilities. Where blockchain systems are built using third party products, those products may contain technical defects or vulnerabilities beyond a company's control. Open-source technologies that are used to build a blockchain application, may also introduce defects and vulnerabilities.

• Reliance on the Internet. Blockchain functionality relies on the Internet. A significant disruption of Internet connectivity affecting large numbers of users or geographic areas could impede the functionality of blockchain technologies and adversely affect the Fund. In addition, certain features of blockchain technology, such as decentralization, open source protocol, and reliance on peer-to-peer connectivity, may increase the risk of fraud or cyber-attack by potentially reducing the likelihood of a coordinated response.

• Line of business risk. Some of the companies in which the Fund will invest are engaged in other lines of business unrelated to blockchain and these lines of business could adversely affect their operating results. The operating results of these companies may fluctuate as a result of these additional risks and events in the other lines of business. In addition, a company's ability to engage in new activities may expose it to business risks with which it has less experience than it has with the business risks associated with its traditional businesses. Despite a company's possible success in activities linked to its use of blockchain, there can be no assurance that the other lines of business in which these companies are engaged will not have an adverse effect on a company's business or financial condition.

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. While the Fund has established business continuity plans and risk management systems designed to reduce the risks associated with cyber security, there are inherent limitations in such plans and systems. Additionally, 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. The Fund invests in equity securities. The value of the 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 the current market volatility, or when political or economic events affecting the issuers occur.

Financial Sector Risk. The Fund may have exposure to companies operating in the financial sector. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, changes in government regulations, economic conditions, and interest rates, credit rating downgrades, and decreased liquidity in credit markets. The impact of more stringent capital requirements and recent or future regulation of any individual financial company or of the financials sector as a whole cannot be predicted. In recent years, cyber attacks and technology malfunctions and failures have become increasingly frequent in this sector and have caused significant losses to companies in this sector, which may negatively impact the Fund.

Fluctuation of Net Asset Value Risk. The Fund is generally subject to liquidity risk that may affect the market for Shares as compared to the underlying value of the Fund's investments. The net asset value of Shares 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 the Exchange. The Fund cannot predict whether Shares will trade below, at or above their 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.

Foreign Investment Risk. The Fund will invest in the securities of foreign companies. Securities issued by foreign companies present risks beyond those of securities of U.S. issuers. Risks of investing in the securities of foreign companies include: different accounting standards; expropriation, nationalization or other adverse political or economic developments; currency devaluation, blockages or transfer restrictions; changes in foreign currency exchange rates; taxes; restrictions on foreign investments and exchange of securities; and less government supervision and regulation of issuers in foreign countries. Prices of foreign securities also may be more volatile.

Management Risk. The Fund is subject to management risk because it is an actively managed. In managing the Fund's portfolio, the Sub-Adviser will apply investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results.

Market Risk. Market risk is the risk that a particular security owned by the Fund or the Shares in general may fall in value, including the possible loss of the entire principal amount that you invest. 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. Overall security values could decline generally or could underperform other investments.

New Fund Risk. The Fund currently has fewer assets than larger funds, and like other relatively new 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. Also, during the initial invest-up period, the Fund may depart from its principal investment strategies and invest a larger amount or all of its assets in cash equivalents, or it may hold cash.

Non-Diversification 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.

Operational Risk. The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error, processing and communication errors, errors of the Fund's service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund, Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

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.

Technology Sector Risk. The Fund may have exposure to companies operating in the financial sector. Technology companies, including information technology companies, may have limited product lines, financial resources and/or personnel. Technology companies typically face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by the loss or impairment of those rights.

Trading Issues Risk. Although the shares of the Fund are listed for trading on the Exchange, there can be no assurance that an active trading market for such shares will develop or be maintained. Trading in shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to Exchange "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 the Exchange 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 the Exchange in the event the Fund's assets are small or the Fund does not have enough shareholders.

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

PERFORMANCE

The Fund's performance information is only shown in the Fund summary when the Fund has had a full calendar year of operations.

[1] Other Expenses are estimated based on the expenses the Fund expects to incur for the current fiscal year.

[2] Pursuant to a contractual agreement, the Fund's investment adviser has agreed to waive management fees of 0.20% of average daily net assets until January 16, 2019. This waiver agreement may be terminated by action of the Trust's Board of Trustees at any time upon 60 days' written notice by the Trust, on behalf of the Fund, or by the Fund's investment advisor only after January 16, 2019.

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Document Type

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497

Document Period End Date

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Jan. 16, 2018

Registrant Name

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Amplify ETF Trust

Central Index Key

dei_EntityCentralIndexKey

0001633061

Amendment Flag

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Document Creation Date

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Jun. 13, 2018

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Jun. 13, 2018

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Jan. 16, 2018

Amplify Transformational Data Sharing ETF

Risk Return Abstract

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Amplify Transformational Data Sharing ETF

Summary Information

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

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The Amplify Transformational Data Sharing ETF seeks to provide investors with total return.

Expense [Heading]

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FUND FEES AND EXPENSES

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

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.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

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

Fee Waiver or Reimbursement over Assets, Date of Termination

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January 16, 2019

Portfolio Turnover [Heading]

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PORTFOLIO TURNOVER

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or "turns over" its portfolio). A higher portfolio turnover 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.

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Other Expenses, New Fund, Based on Estimates [Text]

rr_OtherExpensesNewFundBasedOnEstimates

Other Expenses are estimated based on the expenses the Fund expects to incur for the current fiscal year.

Expense Example [Heading]

rr_ExpenseExampleHeading

EXAMPLE

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

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 remain at current levels. 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:

Strategy [Heading]

rr_StrategyHeading

PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund is an actively managed ETF that seeks to provide total return by investing at least 80% of its net assets (including investment borrowings) in the equity securities of companies actively involved in the development and utilization of transformational data sharing technologies. The Fund may invest in non-U.S. equity securities, including depositary receipts. Toroso Investments, LLC ("Toroso") and CSAT Investment Advisory, L.P., d/b/a Exponential ETFs ("Exponential") serve as the investment sub-advisers to the Fund (the "Sub-Advisers"). Toroso manages the investment strategy and portfolio selection. Exponential constructs and implements Toroso's trade decisions.

In selecting companies that the portfolio managers believe are relevant to the Fund's investment theme, the portfolio managers seek to invest in companies developing or utilizing transformational data sharing technologies. These companies will primarily include, but are not limited to, those developing or utilizing blockchain-based and other distributed ledger technologies. The "blockchain" is a peer-to-peer shared, distributed ledger that facilitates the process of recording transactions and tracking assets in a business network. It derives its name from the way it stores transaction data – in blocks that are linked together to form a chain. As the number of transactions grow, so does the blockchain. Blocks record and confirm the time and sequence of transactions, which are then logged into the blockchain, within a discrete network governed by rules agreed on by the network participants. Although initially associated with digital commodities, it can be used to track tangible, intangible and digital assets and companies in all business sectors. Blockchains may also be private or public. The distinction between public and private blockchains is related to who is allowed to participate in the network, execute the consensus protocol and maintain the shared ledger. A public blockchain network is completely open and anyone can join and participate in the network. A private blockchain network requires an invitation and must be validated by either the network starter or by a set of rules put in place by the network starter.

In pursuing its investment strategy, the Fund's portfolio managers seek investments in companies across a wide variety of industries that are leading in the research, development, utilization and funding of transformational data sharing technologies. The Fund's portfolio managers determine whether a company is eligible for investment by the Fund based upon an examination of whether a company is committing material resources to transformational data sharing (including blockchain-based) technologies in one or more of the following ways:

• actively engaging in the research and development, proof-of-concept testing, and/or implementation of transformational data sharing technology: the Fund's portfolio managers review the scale, continuation and growth of such initiatives, and the dedication of organizational infrastructure (e.g. corporate divisions, number of employees) and capital to such activities.

• profiting from the demand for transformational data sharing applications such as transaction data, cryptocurrency and supply chain data: the Fund's portfolio managers evaluate companies for both direct profitability, obtained by providing direct access to transformational data sharing technology, and indirect profitability, obtained by benefitting from cost reductions and economies of scale through transformational data sharing technology implementation for its business.

• partnering with and/or directly investing in companies that are actively engaged in the development and/or use of transformational data sharing technology: the Fund's portfolio managers review both the number and size of partnership and/or projects invested, including a company's internal initiatives.

• acting as a member of multiple consortiums or groups dedicated to the exploration of transformational data sharing technology use: the Fund's portfolio managers review the number of consortiums or groups and size of investments, including a company's internal initiatives.

In reviewing the above criteria, the Fund's portfolio managers actively evaluate the legitimacy of each potential portfolio company's commitment to transformational data sharing technologies. In addition, the Fund's portfolio managers will construct the portfolio so that it meets the following standards:

• each security must be listed on a regulated stock exchange in the form of shares tradable for foreign investors without restrictions;

• at least 90% of securities issued by a U.S. company must have a minimum market capitalization of at least $75,000,000;

• each security issued by a non-U.S. company must have a minimum market capitalization of at least $100,000,000;

• each security must have a minimum global monthly trading volume of 250,000 shares, or minimum global notional volume traded per month of $25 million, averaged over the last six months.

The Fund's portfolio managers will further review these constituent companies and classify the companies into two groups:

• Core: companies are designated as "Core" if they derive significant direct revenue from transformational data sharing-related business and/or are among the largest five investors in transformtional data sharing-engaged companies, as defined by the portfolio managers.

• Secondary: companies are designated as "Secondary" if the company directly invests or partners in transformational data sharing technology companies, or participates in multiple blockchain industry consortiums.

The portfolio managers believe that an active management approach will enable the Fund to remain flexible and identify companies that are best positioned to profit from the developing transformational data sharing technology space. The Fund's portfolio managers will actively seek opportunities for the Fund to invest in new and emerging transformational data sharing technology companies meeting the Fund's eligibility criteria. Through portfolio management, the Fund's portfolio managers believe that there will be opportunities to take advantage of market pricing dislocations, and to purchase, sell or weight the Fund's portfolio holdings accordingly. The Fund's portfolio managers will initially have the following portfolio allocation: 70% Core constituents and 30% Secondary constituents. Initially, constituents will have an equal weighting within such groups. However, the Fund's portfolio managers will manage the portfolio to increase, decrease or eliminate weightings of the portfolio holdings, based upon its assessment of:

• changes in a company's business model or operations;

• a company's increase or decrease in transformational data sharing related revenue;

Risk [Heading]

rr_RiskHeading

PRINCIPAL RISKS OF INVESTING IN THE FUND

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

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.

Active Market Risk. Although the Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained. Shares trade on the Exchange at market prices that may be below, at or above the Fund's net asset value. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments.

ADR and GDR Risk. ADRs are certificates that evidence ownership of shares of a foreign issuer and are alternatives to purchasing directly the underlying foreign securities in their national markets and currencies. GDRs are certificates issued by an international bank that generally are traded and denominated in the currencies of countries other than the home country of the issuer of the underlying shares. ADRs and GDRs may be subject to certain of the risks associated with direct investments in the securities of foreign companies, such as currency, political, economic and market risks, because their values depend on the performance of the non-dollar denominated underlying foreign securities. Certain countries may limit the ability to convert ADRs into the underlying foreign securities and vice versa, which may cause the securities of the foreign company to trade at a discount or premium to the market price of the related ADR. ADRs may be purchased through "sponsored" or "unsponsored" facilities. A sponsored facility is established jointly by a depositary and the issuer of the underlying security. A depositary may establish an unsponsored facility without participation by the issuer of the deposited security. Unsponsored receipts may involve higher expenses and may be less liquid. Holders of unsponsored ADRs generally bear all the costs of such facilities, and the depositary of an unsponsored facility frequently is under no obligation to distribute shareholder communications received from the issuer of the deposited security or to pass through voting rights to the holders of such receipts in respect of the deposited securities. GDRs can involve currency risk since, unlike ADRs, they may not be U.S. dollar-denominated. Because the Fund's NAV is determined in U.S. dollars, the NAV of the Fund could decline if the currency of the non-U.S. market in which the Fund invests depreciates against the U.S. dollar, even if the value of the Fund's holdings, measured in the foreign currency, increases.

Authorized Participant Concentration Risk. Only an authorized participant (as defined in "Purchase and Sales of Shares") may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that act as authorized participants on an agency basis (i.e. on behalf of other market 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.

Below Net Asset Value Risk. The net asset value of Shares 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 the Exchange. The Fund cannot predict whether Shares will trade below (discount), at or above (premium) their 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.

Blockchain Investments Risk. An investment in companies actively engaged in blockchain technology may be subject to the following risks:

• The technology is new and many of its uses may be untested. The mechanics of using distributed ledger technology to transact in other types of assets, such as securities or derivatives, is less clear. There is no assurance that widespread adoption will occur. A lack of expansion in the usage of blockchain technology could adversely affect an investment in the Fund.

• Theft, loss or destruction. Transacting on a blockchain depends in part specifically on the use of cryptographic keys that are required to access a user's account (or "wallet"). The theft, loss or destruction of these keys impairs the value of ownership claims users have over the relevant assets being represented by the ledger (whether "smart contracts," securities, currency or other digital assets). The theft, loss or destruction of private or public keys needed to transact on a blockchain could also adversely affect a company's business or operations if it were dependent on the ledger.

• Competing platforms and technologies. The development and acceptance of competing platforms or technologies may cause consumers or investors to use an alternative to blockchains.

• Cyber security incidents. Cyber security incidents may compromise an issuer, its operations or its business. Cyber security incidents may also specifically target user's transaction history, digital assets, or identity, thereby leading to privacy concerns. In addition, certain features of blockchain technology, such as decentralization, open source protocol, and reliance on peer-to-peer connectivity, may increase the risk of fraud or cyber-attack by potentially reducing the likelihood of a coordinated response.

• Developmental risk. Blockchain technology may never develop optimized transactional processes that lead to realized economic returns for any company in which the Fund invests. Companies that are developing applications of blockchain technology applications may not in fact do so or may not be able to capitalize on those blockchain technologies. The development of new or competing platforms may cause consumers and investors to use alternatives to blockchains.

• Intellectual property claims. A proliferation of recent startups attempting to apply blockchain technology in different contexts means the possibility of conflicting intellectual property claims could be a risk to an issuer, its operations or its business. This could also pose a risk to blockchain platforms that permit transactions in digital securities. Regardless of the merit of any intellectual property or other legal action, any threatened action that reduces confidence in the viability of blockchain may adversely affect an investment in the Fund.

• Lack of liquid markets, and possible manipulation of blockchain-based assets. Digital assets that are represented and trade on a blockchain may not necessarily benefit from viable trading markets. Stock exchanges have listing requirements and vet issuers, and perhaps users. These conditions may not necessarily be replicated on a blockchain, depending on the platform's controls and other policies. The more lenient a blockchain is about vetting issuers of digital assets or users that transact on the platform, the higher the potential risk for fraud or the manipulation of digital assets. These factors may decrease liquidity or volume, or increase volatility of digital securities or other assets trading on a blockchain.

• Lack of regulation. Digital commodities and their associated platforms are largely unregulated, and the regulatory environment is rapidly evolving. Because blockchain works by having every transaction build on every other transaction, participants can self-police any corruption, which can mitigate the need to depend on the current level of legal or government safeguards to monitor and control the flow of business transactions. As a result, companies engaged in such blockchain activities may be exposed to adverse regulatory action, fraudulent activity or even failure.

• Third party product defects or vulnerabilities. Where blockchain systems are built using third party products, those products may contain technical defects or vulnerabilities beyond a company's control. Open-source technologies that are used to build a blockchain application, may also introduce defects and vulnerabilities.

• Reliance on the Internet. Blockchain functionality relies on the Internet. A significant disruption of Internet connectivity affecting large numbers of users or geographic areas could impede the functionality of blockchain technologies and adversely affect the Fund. In addition, certain features of blockchain technology, such as decentralization, open source protocol, and reliance on peer-to-peer connectivity, may increase the risk of fraud or cyber-attack by potentially reducing the likelihood of a coordinated response.

• Line of business risk. Some of the companies in which the Fund will invest are engaged in other lines of business unrelated to blockchain and these lines of business could adversely affect their operating results. The operating results of these companies may fluctuate as a result of these additional risks and events in the other lines of business. In addition, a company's ability to engage in new activities may expose it to business risks with which it has less experience than it has with the business risks associated with its traditional businesses. Despite a company's possible success in activities linked to its use of blockchain, there can be no assurance that the other lines of business in which these companies are engaged will not have an adverse effect on a company's business or financial condition.

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. While the Fund has established business continuity plans and risk management systems designed to reduce the risks associated with cyber security, there are inherent limitations in such plans and systems. Additionally, 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. The Fund invests in equity securities. The value of the 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 the current market volatility, or when political or economic events affecting the issuers occur.

Financial Sector Risk. The Fund may have exposure to companies operating in the financial sector. Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, changes in government regulations, economic conditions, and interest rates, credit rating downgrades, and decreased liquidity in credit markets. The impact of more stringent capital requirements and recent or future regulation of any individual financial company or of the financials sector as a whole cannot be predicted. In recent years, cyber attacks and technology malfunctions and failures have become increasingly frequent in this sector and have caused significant losses to companies in this sector, which may negatively impact the Fund.

Fluctuation of Net Asset Value Risk. The Fund is generally subject to liquidity risk that may affect the market for Shares as compared to the underlying value of the Fund's investments. The net asset value of Shares 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 the Exchange. The Fund cannot predict whether Shares will trade below, at or above their 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.

Foreign Investment Risk. The Fund will invest in the securities of foreign companies. Securities issued by foreign companies present risks beyond those of securities of U.S. issuers. Risks of investing in the securities of foreign companies include: different accounting standards; expropriation, nationalization or other adverse political or economic developments; currency devaluation, blockages or transfer restrictions; changes in foreign currency exchange rates; taxes; restrictions on foreign investments and exchange of securities; and less government supervision and regulation of issuers in foreign countries. Prices of foreign securities also may be more volatile.

Management Risk. The Fund is subject to management risk because it is an actively managed. In managing the Fund's portfolio, the Sub-Adviser will apply investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results.

Market Risk. Market risk is the risk that a particular security owned by the Fund or the Shares in general may fall in value, including the possible loss of the entire principal amount that you invest. 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. Overall security values could decline generally or could underperform other investments.

New Fund Risk. The Fund currently has fewer assets than larger funds, and like other relatively new 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. Also, during the initial invest-up period, the Fund may depart from its principal investment strategies and invest a larger amount or all of its assets in cash equivalents, or it may hold cash.

Non-Diversification 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.

Operational Risk. The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error, processing and communication errors, errors of the Fund's service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund, Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

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.

Technology Sector Risk. The Fund may have exposure to companies operating in the financial sector. Technology companies, including information technology companies, may have limited product lines, financial resources and/or personnel. Technology companies typically face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by the loss or impairment of those rights.

Trading Issues Risk. Although the shares of the Fund are listed for trading on the Exchange, there can be no assurance that an active trading market for such shares will develop or be maintained. Trading in shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to Exchange "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 the Exchange 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 the Exchange in the event the Fund's assets are small or the Fund does not have enough shareholders.

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

Risk Lose Money [Text]

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You could lose money by investing in the Fund.

Risk Nondiversified Status [Text]

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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.

Risk Not Insured Depository Institution [Text]

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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.

Bar Chart and Performance Table [Heading]

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PERFORMANCE

Performance Narrative [Text Block]

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The Fund's performance information is only shown in the Fund summary when the Fund has had a full calendar year of operations.

Performance One Year or Less [Text]

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The Fund's performance information is only shown in the Fund summary when the Fund has had a full calendar year of operations.

Amplify Transformational Data Sharing ETF | Amplify Transformational Data Sharing ETF Shares

Risk Return Abstract

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Trading Symbol

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BLOK

Management Fees

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0.90%

Distribution and Service (12b-1) Fees

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none

Other Expenses

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none

^[1]

Total Annual Fund Operating Expenses

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0.90%

Fee Waiver

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(0.20%)

^[2]

Total Annual Fund Operating Expenses After Fee Waiver

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0.70%

One Year

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$ 72

Three Years

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$ 267

[1] Other Expenses are estimated based on the expenses the Fund expects to incur for the current fiscal year.

[2] Pursuant to a contractual agreement, the Fund's investment adviser has agreed to waive management fees of 0.20% of average daily net assets until January 16, 2019. This waiver agreement may be terminated by action of the Trust's Board of Trustees at any time upon 60 days' written notice by the Trust, on behalf of the Fund, or by the Fund's investment advisor only after January 16, 2019.