INDEXIQ ETF TRUST(the “Trust”)

IQ Hedge Multi-Strategy Tracker ETF(the “Fund”)

Supplement dated December 30, 2021 (“Supplement”)to the Summary Prospectus and Prospectus dated August 31, 2021

Capitalized terms and certain other terms used in this Supplement have themeanings assigned to them in the Summary Prospectus and Prospectus.

Effective December 31, 2021, all references to the HFRI Fund of FundsComposite Index are hereby deleted. Additionally, the Fund has added theBarclay Fund of Funds Index as an additional index. As a result, the“Performance Information” section in the Summary Prospectus andProspectus is hereby replaced with the following:

Performance Information

The bar chart that follows shows the annual total returns of the Fund for afull calendar year. The table that follows the bar chart shows the Fund’saverage annual total returns, both before and after taxes. The bar chart andtable provide an indication of the risks of investing in the Fund bycomparing the Fund’s performance from year to year and by showing howthe Fund’s average annual returns for one calendar year compared with itsunderlying index and additional broad measures of market performance.The S&P 500® Index has replaced the Fund’s comparative index, which isnot available for the Fund’s use. The S&P 500® Index is a well-knownbroad-based unmanaged index of 500 stocks, which is designed to representthe equity market in general (performance data assumes reinvestment ofdividends, but it does not reflect management fees, transaction costs or otherexpenses). The Barclay Fund of Funds Index is a measure of the average netreturns of all reporting funds of funds in the BarclayHedge database.

All returns assume reinvestment of dividends and distributions. The Fund’spast performance (before and after taxes) is not necessarily an indication ofhow the Fund will perform in the future. Performance reflects fee waiversand/or expense reimbursement in effect, if such waivers or reimbursementswere not in place, the Fund’s performance would be reduced. Fundperformance current to the most recent month-end is available by calling1-888-474-7725 or by visiting newyorklifeinvestments.com.

0.26%

4.06%5.16%

2.77%

-2.51%

0.68%

6.25%

8.59%

5.56%

-3.22%2018 2019 20202017201620152014201320122011

-4%

-2%

0%

2%

4%

6%

8%

10%

The Fund’s year-to-date total return as of June 30, 2021 was 1.28%.

Best and Worst Quarter Returns (for the period reflected in the bar chartabove)

Return Quarter/Year

Highest Return 6.45% 2Q/2020Lowest Return -7.48% 1Q/2020

Average Annual Total Returns as of December 31, 20201 Year 5 Years 10 Years

Returns before taxes 5.56% 3.49% 2.70%Returns after taxes on distributions(1) 4.75% 3.02% 2.26%Returns after taxes on distributionsand sale of Fund Shares(1) 3.32% 2.49% 1.92%

IQ Hedge Multi-Strategy Index(reflects no deduction for fees,expenses or taxes) 6.26% 4.26% 3.56%S&P 500® Index(reflects no deduction for fees,expenses or taxes) 17.75% 14.53% 13.18%Barclay Fund of Funds Index(reflects no deduction for fees,expenses or taxes) 9.75% 3.34% 2.61%

(1) After-tax returns are calculated using the highest historical individualfederal marginal income tax rates and do not reflect the impact of stateand local taxes. Actual after-tax returns depend on your tax situationand may differ from those shown and are not relevant if you hold yourShares through tax-deferred arrangements, such as 401(k) plans or

individual retirement accounts. In some cases the return after taxes mayexceed the return before taxes due to an assumed tax benefit from anylosses on a sale of Fund Shares at the end of the measurement period.

Investors Should Retain This Supplement for Future Reference

MEQAI16b-12/21

IndexIQ ETF TrustSummary ProspectusAugust 31, 2021

IQ Hedge Multi-Strategy Tracker ETF

QAI

This summary prospectus is designed to provide investors with key fund information in a clearand concise format. Before you invest, you may want to review the Fund’s full prospectus, whichcontains more information about the Fund and its risks. The Fund’s full prospectus dated August31, 2021 and statement of additional information dated August 31, 2021, and most recentannual report to shareholders, dated April 30, 2021, are all incorporated by reference into thisSummary Prospectus. All this information may be obtained at no cost either: online atnewyorklifeinvestments.com/documents; by calling IndexIQ Funds at 888-474-7725 or bysending an email request to info@indexiq.com

As permitted by regulations adopted by the Securities and Exchange Commission, paper copies of the Fund’sshareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reportsfrom your financial intermediary, such as a broker-dealer or bank. Instead, the reports will be made availableon a website, and you will be notified by mail each time a report is posted and provided with a website link toaccess the report.

If you already elected to receive shareholder reports electronically, you will not be affected by this change andyou need not take any action. If you hold accounts through a financial intermediary, you may contact yourfinancial intermediary to enroll in electronic delivery. Please note that not all financial intermediaries may offerthis service.

You may elect to receive all future reports in paper free of charge. If you hold accounts through a financialintermediary, you can contact your financial intermediary to request that you continue to receive paper copiesof your shareholder reports. Your election to receive reports in paper will apply to all funds held with yourfinancial intermediary.

QAI LISTED ON NYSE ARCA | CUSIP # 45409B107

To Statutory Prospectus To Statement of Additional Information

IQ Hedge Multi-Strategy Tracker ETF

Investment ObjectiveThe Fund seeks investment results that correspond (before fees andexpenses) generally to the price and yield performance of its underlyingindex, the IQ Hedge Multi-Strategy Index (the “Underlying Index”).

Fees and Expenses of the FundThis table describes fees and expenses that you may pay if you buy, sell orhold shares of the Fund (“Shares”). Investors may pay other fees, such asbrokerage commissions and other fees to financial intermediaries, whichare not reflected in the table and example set forth below.

Shareholder Fees (fees paid directly from your investment):None

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

Management Fee 0.75%Distribution and/or Service (12b-1) Fees 0.00%Other Expenses 0.01%Acquired Fund Fees & Expenses(a) 0.25%

Total Annual Fund Operating Expenses(a) 1.01%Fee Waiver(b) 0.22%

Total Annual Fund Operating Expenses After Fee Waiver 0.79%

(a) The Total Annual Fund Operating Expenses may not correlate to the ratio ofexpenses to average net assets as reported in the “Financial Highlights” sectionof the Prospectus, which reflects the operating expenses of the Fund and doesnot include Acquired Fund Fees & Expenses. Acquired Fund Fees & Expensesrepresent the Fund’s pro rata share of fees and expenses incurred indirectly as aresult of investing in other funds, including ETFs and money market funds.

(b) IndexIQ Advisors LLC (the “Advisor”) has contractually agreed, until August 31,2022, to waive a portion of the management fee equal to 0.22% of averagedaily net assets.

Example. This example is intended to help you compare the cost ofinvesting in the Fund with the cost of investing in other funds. This exampledoes not take into account brokerage commissions that you pay whenpurchasing or selling Shares of the Fund.

The example assumes that you invest $10,000 in the Fund for the timeperiods indicated and then redeem all of your Shares at the end of thoseperiods. The example also assumes that your investment has a 5% returneach year and that the Fund’s operating expenses remain at current levels.The return of 5% and estimated expenses are for illustration purposes only,

Summary Information

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and should not be considered indicators of expected Fund expenses orperformance, which may be greater or less than the estimates. Althoughyour actual costs may be higher or lower, based on these assumptions yourcosts would be:

1 Year 3 Years 5 Years 10 Years

$81 $300 $536 $1,216

Portfolio TurnoverThe Fund pays transaction costs, such as commissions, when it buys andsells securities (or “turns over” its portfolio). A higher portfolio turnover ratemay indicate higher transaction costs and may result in higher taxes whenShares are held in a taxable account. These costs, which are not reflectedin annual Fund operating expenses or in the example, affect the Fund’sperformance. During the most recent fiscal year, the Fund’s portfolioturnover rate was 163% of the average value of its portfolio. This rateexcludes the value of portfolio securities received or delivered as a result ofin-kind creations or redemptions of the Shares.

Principal Investment StrategiesThe Fund is a “fund of funds” which means it invests, under normalcircumstances, at least 80% of its net assets, plus the amount of anyborrowings for investment purposes, in the investments included in itsUnderlying Index, which includes underlying funds. The Underlying Indexconsists of a number of components (“Underlying Index Components”)selected in accordance with IndexIQ’s rules-based methodology of suchUnderlying Index. Such Underlying Index Components will include primarilyETFs and/or other exchange-traded vehicles issuing equity securitiesorganized in the U.S., such as exchange-traded commodity pools (“ETVs”),and may include exchange-traded notes (“ETNs”) (such ETFs, ETVs and ETNsare referred to collectively as “exchange-traded products” or “ETPs”). TheFund may also invest in one or more financial instruments, including but notlimited to futures contracts and swap agreements (collectively, “FinancialInstruments”).

The Fund employs a “passive management” — or indexing — investmentapproach designed to track the performance of the Underlying Index,which was developed by IndexIQ LLC (“IndexIQ”), an affiliate of IndexIQAdvisors LLC, the Fund’s investment advisor (the “Advisor”). The UnderlyingIndex seeks to track the “beta” portion of the returns (i.e., that portion ofthe returns of hedge funds that are non-idiosyncratic, or unrelated tomanager skill) of hedge funds that employ various hedge fund investmentstyles (the “Strategy”). These styles may include but are not limited tolong/short equity, macro, market neutral, event-driven, fixed-incomearbitrage, emerging markets and other strategies commonly used by

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hedge fund managers. The Fund does not invest in hedge funds, and theUnderlying Index does not include hedge funds as Underlying IndexComponents. The Fund is not a fund of hedge funds.

The Underlying Index may include both long and short positions in ETFs andETVs. As opposed to taking long positions in which an investor seeks to profitfrom increases in the price of a security, short selling (or “selling short”) is atechnique used by the Fund to try and profit from the falling price of asecurity. Short selling involves selling a security that has been borrowedfrom a third party with the intention of buying the identical security back ata later date to return to that third party. The basic principle of short selling isthat one can profit by selling a security now at a high price and laterbuying it back at a lower price. The short seller hopes to profit from adecline in the price of the security between the sale and the repurchase,as the seller will pay less to buy the security than it received on selling thesecurity.

The Strategy generally seeks exposure to the following hedge fundinvestment styles:

• Event-Driven hedge funds typically invest in a combination of creditopportunities and event-driven equities. Within the credit-orientedportion, sub-strategies include long/short high yield credit (belowinvestment grade corporate bonds or “junk” bonds), leveragedloans (bank debt, mezzanine, or self-oriented loans), capitalstructure arbitrage (debt vs. debt or debt vs. equity), andreorganization equity. Within the equity portion, sub-strategiesinclude risk (or merger) arbitrage, holding company arbitrage,special situations and value equities where a change inmanagement, significant product launch, or some other economiccatalyst is expected to unlock shareholder wealth. Event-drivenmanagers invest across multiple asset classes and may also seek toexploit shifts in economic cycles.

• Emerging Market hedge funds typically invest in financialinstruments such as equities, sovereign and corporate debt issuesand currencies of countries in “emerging” markets. Emergingcountries are those in a transitional state from developing todeveloped.

• Fixed Income Arbitrage hedge funds typically employ strategiesthat seek to take advantage of price differentials and inefficienciesbetween related fixed-income securities that are related eithereconomically or statistically. Such funds may limit volatility byhedging out interest rate risk and market exposure.

• Long/short hedge funds typically diversify their risks by limiting thenet exposure to particular regions, industries, sectors and market

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capitalization bands, allowing them to focus on company-specificanomalies. At the same time, long/short managers often hedgeagainst un-diversifiable risk, such as market risk (i.e., the returns of theoverall market). Certain long/short managers focus on specificsectors, regions or industries, on particular investment styles, such asvalue or growth, or certain types of stocks, such as small or large.

• Macro hedge funds typically employ top-down macro analysis(e.g., political trends, macroeconomics, etc.) to identify dislocationsin equity, fixed-income, currency and commodity markets that areexpected to lead to large price movements.

• Market Neutral hedge funds typically invest in both long and shortpositions in stocks while minimizing exposure to the systematiccomponents of risk. These market neutral strategies seek to have azero “beta” (or “market”) exposure to one or more systematic riskfactors including the overall market (as represented by the S&P 500Index), economic sectors or industries, market capitalization, regionand country. Market neutral strategies that effectively neutralize themarket exposure are not impacted by directional moves in themarket.

The Underlying Index generally is based on the premise that hedge fundreturns, when aggregated among hedge funds with similar investmentstyles, display over time significant exposures to a set of commoninvestment strategies and asset classes. By creating an index that hassimilar exposures to the same investment strategies and asset classes ashedge funds generally, IndexIQ seeks to replicate the beta returncharacteristics of hedge funds.

The Underlying Index Components of this Strategy generally provideexposures to:

• Commodities;

• Emerging market equity, debt and sovereign debt, includingsmall-capitalization equity;

• Foreign currencies and currency futures;

• Foreign sovereign debt and equity, including small-capitalizationequity;

• Municipal bonds;

• The implied volatility of the S&P 500® Index;

• U.S. and foreign preferred securities;

• U.S. and foreign real estate investment trusts;

• U.S. bank loans;

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• U.S. convertible debt;

• U.S. floating rate bank loans;

• U.S. floating rate bond;

• U.S. government short-term, intermediate-term and long-termmaturity bond;

• U.S. growth equity;

• U.S. high yield (or “junk”) debt;

• U.S. investment grade corporate debt;

• U.S. large-capitalization equity;

• U.S. mortgage-backed debt;

• U.S. small-capitalization equity;

• U.S. Treasury Inflation Protection Securities (“TIPS”); and

• U.S. value equity.

The Underlying Index is unlike traditional market-oriented indexes like theStandard & Poor’s 500® Composite Stock Total Return Index (the “S&P 500Index”). Instead of tracking the performance of publicly-traded issuersrepresenting a market or industry sector, the Underlying Index seeks to trackthe returns of distinct hedge fund investment styles.

The Underlying Index may include as a component one or more ETFsadvised by the Advisor (“Affiliated ETFs”) and the Fund will typically invest inany Affiliated ETF included in the Underlying Index. The Fund also may investin Affiliated ETFs that are not components of the index if such an investmentwill help the Fund track the Underlying Index.

The weights of the Underlying Index Components are rebalanced on amonthly basis. Annually, IndexIQ conducts a review process pursuant towhich it may reconstitute the Underlying Indexes by adding or subtractingUnderlying Index Components according to IndexIQ’s rules-based process.

Principal RisksAs with all investments, there are certain risks of investing in the Fund. TheFund’s Shares will change in value and you could lose money by investingin the Fund. An investment in the Fund does not represent a completeinvestment program. An investment in the Fund is not a bank deposit and itis not insured or guaranteed by the Federal Deposit Insurance Corporationor any other government agency, the Advisor or any of its affiliates. Youshould consider carefully the following risks before investing in the Fund.

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Authorized Participant Concentration RiskOnly certain large institutions may engage in creation or redemptiontransactions directly with the Fund (each, an “Authorized Participant”). TheFund has a limited number of institutions that may act as AuthorizedParticipants on an agency basis (i.e., on behalf of other marketparticipants). To the extent that those Authorized Participants exit thebusiness or are unable to proceed with creation and/or redemption orderswith the Fund and no other Authorized Participant is able to step forward toengage in creation and redemption transactions with the Fund, may bemore likely to trade at a premium or discount to NAV and possibly facetrading halts and/or delisting.

Counterparty RiskA counterparty (the other party to a transaction or an agreement or theparty with whom the Fund executes transactions) to a transaction with theFund may be unable or unwilling to make timely principal, interest,settlement or margin payments, fulfill the delivery conditions of the contractor transaction, or otherwise honor its obligations. If a counterparty fails tomeet its contractual obligations the Fund will have contractual remediespursuant to the agreements related to the transaction but the Fund maybe unable to terminate or realize any gain on the investment ortransaction, resulting in a loss to the Fund. The Fund may experiencesignificant delays in obtaining any recovery in an insolvency, bankruptcy,or other reorganization proceeding involving a counterparty (includingrecovery of any collateral posted by it) and may obtain limited or norecovery in such circumstances.

Cyber Security RiskThe Fund is susceptible to operational risks through breaches in cybersecurity. Such events may cause the Fund to lose proprietary information,suffer data corruption or lose operational capacity and could cause theFund to incur regulatory penalties, reputational damage, additionalcompliance costs associated with corrective measures and/or financialloss. In addition, cyber security breaches of the securities issuers or theFund’s third-party service providers can also subject the Fund to many ofthe same risks associated with direct cyber security breaches. Although theFund has established risk management systems designed to reduce therisks associated with cyber security, there is no guarantee that such effortswill succeed.

Derivatives RiskDerivatives are investments whose value depends on (or is derived from)the value of an underlying instrument, such as a security, asset, referencerate or index and involve risks different from, and possibly greater than, therisks associated with other investments. These risks include: (i) the risk thatthe counterparty to a derivatives transaction may not fulfill its contractual

7

obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk thatchanges in the value of the derivative may not correlate perfectly with theunderlying asset. Derivative prices are highly volatile and may fluctuatesubstantially during a short period of time. Such prices are influenced bynumerous factors that affect the markets, including, but not limited to,changing supply and demand relationships, government programs andpolicies, national and international political and economic events,changes in interest rates, inflation and deflation, and changes in supplyand demand relationships. Unlike other investments, derivative contractsoften have leverage inherent in their terms. The use of leveragedderivatives can magnify potential for gain or loss and, therefore, amplifythe effects of market volatility on the Fund’s Share price. The effects ofleverage may also cause the Fund to liquidate portfolio positions when itwould not be advantageous to do so in order to satisfy its obligations or tomeet collateral segregation requirements.

Exchange Traded Products RiskUnlike an investment in a mutual fund, the value of the Fund’s investment inother exchange-traded funds or exchange-traded investment products(“ETPs”) is based on its market price (rather than NAV) and the Fund couldlose money due to premiums/discounts of the ETP (which could cause theFund to buy shares at market prices that are higher than their value or sellshares at market prices that are lower than their value); the failure of anactive trading market to develop; or exchange trading halts or delistings.An investment in the Fund will entail more costs and expenses than a directinvestment in any Underlying ETP. As the Fund’s allocations to UnderlyingETPs changes, or the expense ratio of Underlying ETPs change, theoperating expenses borne by the Fund from such investments mayincrease or decrease.

Index RiskThere is no guarantee that the Fund’s investment results will have a highdegree of correlation to those of the Underlying Index or that the Fund willachieve its investment objective. Market disruptions and regulatoryrestrictions could have an adverse effect on the Fund’s ability to adjust itsexposure to the required levels in order to track the Underlying Index. Errorsin index data, index computations or the construction of the UnderlyingIndex in accordance with its methodology may occur from time to timeand may not be identified and corrected for a period of time or at all,which may have an adverse impact on the Fund and its shareholders.

Liquidity RiskLiquidity risk exists when particular investments are difficult to purchase orsell. Certain investments may be subject to restrictions on resale, tradeover-the-counter or in limited volume, or lack an active trading market.Accordingly, the Fund may not be able to sell or close out of such

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investments at favorable times or prices (or at all), or at the pricesapproximating those at which the Fund currently values them. Illiquidsecurities may trade at a discount from comparable, more liquidinvestments and may be subject to wide fluctuations in market value.

Long/Short RiskThe Fund seeks long exposure to certain securities and short exposure tocertain other securities. There is no guarantee that the returns on the Fund’slong or short positions will produce positive returns, and the Fund could losemoney if either or both positions produce negative returns. In addition, theFund may gain enhanced long exposure to certain securities (i.e., obtaininvestment exposure that exceeds the amount directly invested in thoseassets, a form of leverage) and, as a result, suffer losses that exceed theamount invested in those assets.

Market RiskMarket risks include political, regulatory, market and economicdevelopments, including developments that impact specific economicsectors, industries or segments of the market, which may affect the Fund’svalue. Turbulence in financial markets, tariffs and other protectionistmeasures, political developments and uncertainty, central bank policy,and reduced liquidity in equity, credit and fixed income markets maynegatively affect many issuers worldwide, which could have an adverseeffect on the Fund. During a general downturn in the securities markets,multiple asset classes may be negatively affected. Geopolitical and otherevents, including war, terrorism, economic uncertainty, trade disputes,public health crises and related geopolitical events have led, and in thefuture may lead, to disruptions in the US and world economies and markets,which may increase financial market volatility and have significant adversedirect or indirect effects on the Fund and its investments. Market disruptionscould cause the Fund to lose money, experience significant redemptions,and encounter operational difficulties. Although multiple asset classes maybe affected by a market disruption, the duration and effects may not bethe same for all types of assets.

Operational RiskThe Fund is exposed to operational risks arising from a number of factors,including, but not limited to, human error, processing and communicationerrors, errors of the Fund’s service providers, counterparties or otherthird-parties, failed or inadequate processes and technology or systemsfailures. The Fund and Advisor seek to reduce these operational risksthrough controls and procedures. However, these measures do not addressevery possible risk and may be inadequate to address significantoperational risks.

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Passive Management RiskThe Fund is not actively managed and instead seeks to track theperformance of an index. Passive management has the following risksassociated with it:

• The Fund invests in the securities included in, or representative of, theUnderlying Index. The provider of the Underlying Index or the indexcalculation agent may make errors. The index provider may includeindex constituents that should have been excluded, or it mayexclude index constituents that should have been included. It alsomay include or exclude constituents at incorrect levels. This mayresult in the Fund, in turn, being correctly positioned to an index thathas been incorrectly calculated. This could lead to losses to theFund.

• In seeking to track the Underlying Index’s performance, the Fundmay be subject to tracking error, which is the divergence of theFund’s performance from that of the Underlying Index. Tracking errormay occur because of differences between the securities and otherinstruments held in the Fund’s portfolio and those included in theUnderlying Index, pricing differences (including, as applicable,differences between a security’s price at the local market close andthe Fund’s valuation of a security at the time of calculation of theFund’s NAV), differences in transaction costs, the Fund’s holding ofuninvested cash, differences in timing of the accrual of or thevaluation of dividends or interest, the requirements to maintainpass-through tax treatment, portfolio transactions carried out tominimize the distribution of capital gains to shareholders, changes tothe Underlying Index or the costs to the Fund of complying withvarious new or existing regulatory requirements. Tracking error alsomay result because the Fund incurs fees and expenses, while theUnderlying Index does not. This risk may be heightened during timesof increased market volatility or other unusual market conditions

• The Fund generally will not attempt to take defensive positions indeclining markets and generally will not sell a security because itsissuer is in financial trouble, unless that security is removed from (orwas no longer useful in tracking a component of) the UnderlyingIndex.

Portfolio Turnover RiskThe Fund’s strategy may frequently involve buying and selling portfoliosecurities to rebalance the Fund’s investment exposures. High portfolioturnover may result in the Fund paying higher levels of transaction costsand generating greater tax liabilities for shareholders. Portfolio turnover riskmay cause the Fund’s performance to be less than expected.

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Secondary Market Trading RiskAlthough the Fund’s Shares are listed for trading on one or more securitiesexchanges, there can be no assurance that an active trading market forsuch Shares will develop or be maintained by market makers or AuthorizedParticipants. In general, the trading of Shares on securities exchanges issubject to the risk of irregular trading activity and wide “bid/ask” spreads(which may be especially pronounced for smaller funds). Additionally,market makers are under no obligation to make a market in the Fund’sShares and Authorized Participants are not obligated to submit purchase orredemption orders for Creation Units. In the event market makers ceasemaking a market in the Fund’s Shares or Authorized Participants stopsubmitting purchase or redemption orders for Creation Units, the Fund’sShares may trade at a larger premium or discount to its NAV. Wide bid-askspreads and large premiums or discounts to NAV are likely to lead to aninvestor buying his or her shares at a market price that is more than theirvalue, and selling those shares at a market price that is less than their value.

Swap Agreements RiskSwap agreements may involve greater risks than direct investment insecurities as they may be leveraged and are subject to credit risk,counterparty risk, liquidity risk and valuation risk. A swap agreement couldresult in losses if the underlying reference or asset does not perform asanticipated. In addition, many swaps trade over-the-counter and may beconsidered illiquid. It may not be possible for the Fund to liquidate a swapposition at an advantageous time or price, which may result in significantlosses.

Short Sales RiskShort sales are transactions in which the Fund sells a security it does notown, or uses derivatives, such as futures or swaps, to effect short exposureto a particular reference asset. Such a position subjects the Fund to the riskthat instead of declining, the price of the security or reference asset towhich the Fund has short exposure will rise. If the price of the security orreference asset increases between the date of the short sale and the dateon which the Fund replaces the security or otherwise closes out its shortposition, the Fund will experience a loss, which is theoretically unlimitedsince there is a theoretically unlimited potential for the market price of asecurity or other instrument sold short to increase.

Trading Price RiskShares of the Fund trade on securities exchanges at prices at, above orbelow the Fund’s most recent NAV. The NAV of the Fund is calculated atthe end of each business day and fluctuates with changes in the marketvalue of the Fund’s holdings. The trading price of the Fund’s Sharesfluctuates continuously throughout trading hours based on both marketsupply of and demand for Shares and the underlying value of the Fund’s

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portfolio holdings or NAV. As a result, the trading prices of the Fund’s Sharesmay deviate significantly from NAV during periods of market volatility. Anyof these factors, among others, may lead to the Fund’s Shares trading at apremium or discount to NAV. Although it is generally expected that themarket price of the Shares of the Fund will approximate the Fund’s NAV,there may be times when the market price and the NAV vary significantly.Thus, an investor may pay more than NAV when purchasing Shares andreceive less than NAV when selling Shares.

Risks of Underlying ETPsThe Fund may invest in the securities of other ETPs, including Affiliated ETFs.Investments in the Fund are subject to the risks associated with aninvestment in the Underlying ETPs. In addition to the risks described above,the following risks should also be considered when making an investment inthe Fund.

• Asset-Backed Securities Risk. Asset-backed securities are securitiesthat represent interests in, and whose values and payments arebased on, a “pool” of underlying assets, which may include, amongothers, lower-rated debt securities and corporate loans, consumerloans or mortgages and leases of property. Asset-backed securitiesinclude collateralized debt obligations, collateralized bondobligations, and collateralized loan obligations and other similarlystructured vehicles. As with other debt securities, asset-backedsecurities are subject to credit risk, extension risk, interest rate risk,liquidity risk and valuation risk. The impairment of the value ofcollateral or other assets underlying an asset-backed security, suchas a result of non-payment of loans or non-performance ofunderlying assets, may result in a reduction in the value of suchasset-backed securities and losses to the Fund.

Investments in mortgage-related securities make an investor moresusceptible to adverse economic, interest rate, political orregulatory events that affect the value of real estate.Mortgage-related securities are also significantly affected by therate of prepayments. Impairment of the underlying obligations orcollateral, such as by non-payment, will reduce a mortgage-relatedsecurity’s value.

• Commodities Risk. Exposure to the commodities markets maysubject the Fund to greater volatility than investments in traditionalsecurities, and exposure to commodities, directly or through othersecurities, can cause the value of the Fund’s assets to decline orfluctuate in a rapid and unpredictable manner. The value ofcommodities may be affected by changes in overall marketmovements, real or perceived inflationary trends, commodity indexvolatility, changes in interest rates or currency exchange rates,

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population growth and changing demographics, internationaleconomic, political and regulatory developments, and factorsaffecting a particular region, industry or commodity, such asdrought, floods, or other weather conditions, livestock disease,changes in storage costs, trade embargoes, competition fromsubstitute products, transportation bottlenecks or shortages,fluctuations in supply and demand, and tariffs.

• Convertible Securities Risk. A convertible security has characteristicsof both equity and debt securities and, as a result, is exposed to risksthat are typically associated with both types of securities.Convertible securities are typically subordinate to an issuer’s otherdebt obligations. Issuers of convertible securities may be morevulnerable to changes in the economy, such as a recession or asustained period of rising interest rates, which could affect theirability to make interest and principal payments. If an issuer stopsmaking interest and/or principal payments, the Fund could lose itsentire investment.

• Credit Risk. Credit risk is the risk that the issuer or guarantor of a debtinstrument or the counterparty to a derivatives contract, repurchaseagreement or loan of portfolio securities will be unable or unwillingto make its timely interest and/or principal payments when due orotherwise honor its obligations. Changes in an issuer’s orcounterparty’s credit rating or the market’s perception of an issuer’sor counterparty’s creditworthiness may also adversely affect thevalue of the Fund’s investment in that issuer. The degree of credit riskdepends on an issuer’s or counterparty’s financial condition and onthe terms of an obligation.

• Currency Risk. Investments directly in foreign (non-U.S.) currencies orin securities that trade in, and receive revenues in, foreign (non-U.S.)currencies are subject to the risk that those currencies will decline invalue relative to the U.S. dollar or, in the case of hedging positions,that the U.S. dollar will decline in value relative to the currency beinghedged. Currency rates in foreign countries may fluctuatesignificantly over short periods of time for a number of reasons,including changes in interest rates, intervention (or the failure tointervene) by U.S. or foreign governments, central banks orsupranational entities such as the International Monetary Fund, or bythe imposition of currency controls or other political developments inthe United States or abroad.

• Debt Securities Risk. The risks of investing in debt securities include(without limitation): (i) credit risk, e.g., the issuer or guarantor of adebt security may be unable or unwilling (or be perceived asunable or unwilling) to make timely principal and/or interest

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payments or otherwise honor its obligations; (ii) interest rate risk, e.g.,when interest rates go up, the value of a debt security generallygoes down, and when interest rates go down, the value of a debtsecurity generally goes up; (iii) liquidity risk and valuation risk, e.g.,debt securities generally do not trade on a securities exchange,making them generally less liquid and more difficult to value thancommon stock; (iv) call risk and income risk, e.g., during a period offalling interest rates, the issuer may redeem a security by repaying itearly, which may reduce the Fund’s income if the proceeds arereinvested at lower interest rates; and (v) extension risk, e.g., ifinterest rates rise, repayments of debt securities may occur moreslowly than anticipated by the market, which may drive the prices ofthese securities down because their interest rates are lower than thecurrent interest rate and the securities remain outstanding longer.Debt securities most frequently trade in institutional round lot sizetransactions. If the Fund purchases bonds in amounts less than theinstitutional round lot size, which are frequently referred to as “odd”lots, the odd lot size positions may have more price volatility thaninstitutional round lot size positions. The Fund uses a third-partypricing service to value bond holdings and the pricing service valuesbonds assuming orderly transactions of an institutional round lot size.

• Emerging Markets Securities Risk. Securities of issuers based incountries with developing economies (emerging market countries)may present market, credit, currency, liquidity, legal, political andother risks different from, or greater than, the risks of investing indeveloped market countries and are generally consideredspeculative in nature. Emerging market countries are subject togreater market volatility, lower trading volume, political andeconomic instability, uncertainty regarding the existence of tradingmarkets, rapid inflation, possible repatriation of investment incomeand capital, currency convertibility issues, less uniform accountingstandards and more governmental limitations on foreign investmentthan more developed markets. Laws regarding foreign investment inemerging market securities, securities regulation, title to securities,and shareholder rights may change quickly and unpredictably. Inaddition, the enforcement of systems of taxation at federal, regionaland local levels in emerging market countries may be inconsistentand subject to sudden change.

• Emerging Markets Sovereign Debt Risk. Government obligors inemerging market countries are among the world’s largest debtors tocommercial banks, other governments, international financialorganizations and other financial institutions. Historically, certainissuers of the government debt securities in which an Underlying ETPmay invest have experienced substantial difficulties in meeting their

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external debt obligations, resulting in defaults on certain obligationsand the restructuring of certain indebtedness, which could result inlosses to an Underlying ETP.

• Equity Securities Risk. Investments in common stocks and otherequity securities are particularly subject to the risk of changes ininvestors’ perceptions of the financial condition of an issuer,conditions affecting equity markets generally and political and/oreconomic events. Equity prices may also be particularly sensitive torising interest rates, as the cost of capital rises and borrowing costsincrease. Holders of an issuer’s common stock may be subject togreater risks than holders of its preferred stock and debt securitiesbecause common stockholders’ claims are subordinated to those ofholders of preferred stocks and debt securities upon the bankruptcyof an issuer.

• Foreign Securities Risk. Investments in the securities of non-U.S. issuersinvolve risks beyond those associated with investments in U.S.securities. These additional risks include greater market volatility, theavailability of less reliable financial information, higher transactionaland custody costs, taxation by foreign governments, decreasedmarket liquidity and political instability. Some countries and regionshave experienced security concerns, war or threats of war andaggression, terrorism, economic uncertainty, natural andenvironmental disasters and/or systemic market dislocations thathave led, and in the future may lead, to increased short-termmarket volatility and may have adverse long-term effects on theU.S. and world economies and markets generally. Foreign issuers areoften subject to less stringent requirements regarding accounting,auditing, financial reporting and record keeping than are U.S.issuers, and therefore not all material information will be available.Securities exchanges or foreign governments may adopt rules orregulations that may negatively impact the Fund’s ability to invest inforeign securities or may prevent the Fund from repatriating itsinvestments. Less developed securities markets are more likely toexperience problems with the clearing and settling of trades, as wellas the holding of securities by local banks, agents and depositories.The less developed a country’s securities market is, the greater thelikelihood of custody problems.

• High Yield Securities Risk. High yield securities, or “junk” bonds,generally offer a higher current yield than the yield available fromhigher grade issues, but are subject to greater market fluctuations,are less liquid and provide a greater risk of loss than investmentgrade securities, and therefore are considered to be highly

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speculative. In general, high yield securities may have a greater riskof default than other types of securities and could cause incomeand principal losses for the Fund.

• Interest Rate Risk. An increase in interest rates may cause the valueof securities held by the Fund to decline. Fixed income securities withlonger durations tend to be more sensitive to changes in interestrates, making them more volatile than securities with shorterdurations or floating or adjustable interest rates. The negativeimpact on the Fund from potential interest rate increases could beswift and significant, including falling market values, increasedredemptions and reduced liquidity. The Fund may be subject to agreater risk of rising interest rates than would normally be the casedue to the current period of historically low rates and the effect ofpotential government fiscal policy initiatives and resulting marketreaction to those initiatives.

When interest rates rise, certain obligations will be paid off by theissuer (or other obligated party) more slowly than anticipated,causing the value of these securities to fall. As a result, in a period ofrising interest rates, securities may exhibit additional volatility andmay lose value. The value of securities with longer maturitiesgenerally changes more in response to changes in interest ratesthan does the value of securities with shorter maturities.

During periods of falling interest rates, an issuer of a callable securityheld by the Fund may “call” or repay the security before its statedmaturity, which may result in the Fund having to reinvest theproceeds in securities with lower yields, resulting in a decline in theFund’s income, or in securities with greater risks or with other lessfavorable features.

The terms of floating rate notes and other instruments may be tied tothe London Interbank Offered Rate (“LIBOR”), which functions as areference rate or benchmark. It is anticipated that LIBOR will bediscontinued at the end of 2021, which may cause increasedvolatility and illiquidity in the markets for instruments with terms tiedto LIBOR or other adverse consequences, such as decreased yieldsand reduction in value, for these instruments. These events mayadversely affect the Fund and its investments in such instruments.

• Municipal Bond Risk. Issuers, including governmental issuers, may beunable to pay their obligations as they come due. The values ofMunicipal Bonds that depend on a specific revenue source to fundtheir payment obligations may fluctuate as a result of actual oranticipated changes in the cash flows generated by the revenuesource or changes in the priority of the municipal obligation to

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receive the cash flows generated by the revenue source. The valuesof Municipal Bonds held by the Fund may be adversely affected bylocal political and economic conditions and developments.Adverse conditions in an industry significant to a local economycould have a correspondingly adverse effect on the financialcondition of local issuers. This risk would be heightened to the extentthat the Fund invests a substantial portion of its assets in MunicipalBonds issued pursuant to similar projects or whose interest is paidsolely from revenues of similar projects. In addition, income fromMunicipal Bonds held by the Fund could be declared taxablebecause of, among other things, unfavorable changes in tax laws,adverse interpretations by the Internal Revenue Service or state taxauthorities, or noncompliant conduct of an issuer or other obligatedparty. Loss of tax-exempt status may cause interest received anddistributed to shareholders by the Fund to be taxable and may resultin a significant decline in the values of such municipal securities.There are various different types of Municipal Bonds, each with itsown unique risk profile. Some of these risks include:

• General Obligation Bonds Risk — timely payments depend onthe issuer’s credit quality, ability to raise tax revenues and abilityto maintain an adequate tax base;

• Revenue Bonds (including Industrial Development Bonds) Risk —timely payments depend on the money earned by the particularfacility or class of facilities, or the amount of revenues derivedfrom another source, and may be negatively impacted by thegeneral credit of the user of the facility;

• Private Activity Bonds Risk — municipalities and other publicauthorities issue private activity bonds to finance developmentof industrial facilities for use by a private enterprise, which is solelyresponsible for paying the principal and interest on the bonds,and payment under these bonds depends on the privateenterprise’s ability to do so;

• Moral Obligation Bonds Risk — moral obligation bonds aregenerally issued by special purpose public authorities of a stateor municipality. If the issuer is unable to meet its obligations,repayment of these bonds becomes a moral commitment, butnot a legal obligation, of the state or municipality;

• Municipal Notes Risk — municipal notes are shorter-termmunicipal debt obligations that pay interest that is, in the opinionof bond counsel for the issuer at the time of issuance, generallyexcludable from gross income for federal income tax purposes(except that the interest may be includable in taxable income

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for purposes of the federal alternative minimum tax) and thathave a maturity that is generally one year or less. If there is ashortfall in the anticipated proceeds, the notes may not be fullyrepaid and the Fund may lose money; and

• Municipal Lease Obligations Risk — in a municipal leaseobligation, the issuer agrees to make payments when due onthe lease obligation. Although the issuer does not pledge itsunlimited taxing power for payment of the lease obligation, thelease obligation is secured by the leased property.

• Preferred Securities Risk. Preferred securities combine some of thecharacteristics of both common stocks and bonds. Preferredsecurities are typically subordinated to bonds and other debtsecurities in a company’s capital structure in terms of priority tocorporate income, subjecting them to greater credit risk than thosedebt securities. Generally, holders of preferred securities have novoting rights with respect to the issuing company unless preferreddividends have been in arrears for a specified number of periods, atwhich time the preferred security holders may obtain limited rights.In certain circumstances, an issuer of preferred securities may deferpayment on the securities and, in some cases, redeem the securitiesprior to a specified date. Preferred securities may also besubstantially less liquid than other securities, including commonstock.

• Real Estate Companies Risk. An investment in companies that investin real estate (including REITs) exposes the Fund to the risks of the realestate market and the risks associated with the ownership of realestate. These risks can include fluctuations in the value of ordestruction of underlying properties; realignment in tenant living andwork habits (for example, movements to and from different parts ofa nation, a region, a state or a city); tenant or borrower default;market saturation; changes in general and local economicconditions; decreases in market rates for rents; increases invacancies; competition; property taxes; capital expenditures oroperating expenses; other economic or political events affectingthe real estate industry including interest rates and governmentregulation; concentration in a limited number of properties,geographic regions or property types; and low quality and/orconflicted management. Real estate is generally a less liquid assetclass and companies that hold real estate may not be able toliquidate or modify their holdings quickly in response to changes ineconomic or other market conditions. Additionally, such companiesmay utilize leverage, which increases investment risk and thepotential for more volatility in the Fund’s returns.

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• Small- and/or Mid-Capitalization Companies Risk. Small- andmid-capitalization companies may be more vulnerable to adversegeneral market or economic developments, and their securitiesmay be less liquid and may experience greater price volatility thanlarger, more established companies.

• Variable and Floating Rate Instruments Risk. Variable and floatingrate instruments include debt securities issued by corporate andgovernmental entities, bank loans, mortgage-backed securities andasset-backed securities, preferred equity securities and derivativevariable rate securities, such as inverse floaters. Variable andfloating rate instruments are structured so that the instrument’scoupon rate fluctuates based upon the level of a reference rate. Avariable or floating rate instrument’s coupon rate resets periodicallyaccording to its terms. Consequently, in a rising interest rateenvironment, variable and floating rate instruments with couponrates that reset infrequently may lag behind the changes in marketinterest rates.

• VIX Exposure Risk. The Fund may invest in investment products whosevalue is linked to the performance of the Cboe Volatility Index (the“VIX Index”). The VIX Index seeks to measure the 30-day expectedvolatility of the S&P 500 Index, as calculated based on the prices ofcertain put and call options on the S&P 500 Index. Productsproviding exposure to the VIX Index are not able to invest directly inthe components of the VIX Index, but rather generally gain exposureto the VIX Index’s performance by purchasing or selling futurescontracts on the VIX Index. The level of the S&P 500 Index, the pricesof options on the S&P 500 Index, the level of the VIX Index itself andthe value of futures contracts on the VIX Index may changesuddenly and unpredictably, and may negatively affect the valueof the Fund’s investments in VIX Index-linked products. In addition,the actual volatility of the S&P 500 Index may not conform to a levelpredicted by the VIX Index or to the prices of the included put andcall options. Several factors may affect the price of the VIX Index,including, but not limited to: market prices and forward volatilitylevels; expectations that volatility as measured by the VIX Index willfluctuate; supply and demand of VIX Index futures and listed andover-the-counter equity derivative markets; international ordomestic political, economic, geographic or financial events;natural disasters; and changes in legal and regulatory regimes in theUnited States.

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Valuation RiskIndependent market quotations for certain investments held by the Fundmay not be readily available, and such investments may be fair valued orvalued by a pricing service at an evaluated price. These valuations involvesubjectivity and different market participants may assign different prices tothe same investment. As a result, there is a risk that the Fund may not beable to sell an investment at the price assigned to the investment by theFund. In addition, the value of the securities or other assets in the Fund’sportfolio may change on days or during time periods when shareholderswill not be able to purchase or sell the Fund’s Shares.

Performance InformationThe bar chart that follows shows the annual total returns of the Fund for afull calendar year. The table that follows the bar chart shows the Fund’saverage annual total returns, both before and after taxes. The bar chartand table provide an indication of the risks of investing in the Fund bycomparing the Fund’s performance from year to year and by showing howthe Fund’s average annual returns for one calendar year compared with itsunderlying index and additional broad measures of market performance.The HFRI Fund of Funds Composite Index is an equally weighted hedgefund index including over 650 domestic and off-shore funds of funds. TheS&P 500® Index is a broad-based unmanaged index of 500 stocks, which isdesigned to represent the equity market in general (performance dataassumes reinvestment of dividends, but it does not reflect managementfees, transaction costs or other expenses).

All returns assume reinvestment of dividends and distributions. The Fund’spast performance (before and after taxes) is not necessarily an indicationof how the Fund will perform in the future. Performance reflects fee waiversand/or expense reimbursement in effect, if such waivers or reimbursementswere not in place, the Fund’s performance would be reduced. Fundperformance current to the most recent month-end is available by calling1-888-474-7725 or by visiting newyorklifeinvestments.com.

0.26%

4.06%5.16%

2.77%

-2.51%

0.68%

6.25%

8.59%

5.56%

-3.22%2018 2019 20202017201620152014201320122011

-4%

-2%

0%

2%

4%

6%

8%

10%

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The Fund’s year-to-date total return as of June 30, 2021 was 1.28%.

Best and Worst Quarter Returns (for the period reflected in the bar chartabove)

Return Quarter/Year

Highest Return 6.45% 2Q/2020

Lowest Return -7.48% 1Q/2020

Average Annual Total Returns as of December 31, 20201 Year 5 Years 10 Years

Returns before taxes 5.56% 3.49% 2.70%

Returns after taxes on distributions(1) 4.75% 3.02% 2.26%

Returns after taxes on distributionsand sale of Fund Shares(1) 3.32% 2.49% 1.92%

IQ Hedge Multi-Strategy Index(reflects no deduction for fees,expenses or taxes) 6.26% 4.26% 3.56%

HFRI Fund of Funds CompositeIndex(2)

(reflects no deduction for fees,expenses or taxes) 10.88% 4.56% 3.32%

S&P 500® Index(reflects no deduction for fees,expenses or taxes) 17.75% 14.53% 13.18%

(1) After-tax returns are calculated using the highest historical individual federalmarginal income tax rates and do not reflect the impact of state and localtaxes. Actual after-tax returns depend on your tax situation and may differ fromthose shown and are not relevant if you hold your Shares through tax-deferredarrangements, such as 401(k) plans or individual retirement accounts. In somecases the return after taxes may exceed the return before taxes due to anassumed tax benefit from any losses on a sale of Fund Shares at the end of themeasurement period.

(2) HFRI Fund of Funds Composite Index is calculated from March 31, 2009.Performance information for the Fund in the table above also includes theperformance of HFRI Fund of Funds Composite Index. Because indexcomparisons are generally calculated as of the end of each month, indexperformance information under the “Since Inception” heading may not becoincident with the inception date of the Fund. In such instances, indexperformance is generally presented from the month-end nearest to theinception date of the Fund.

Investment AdvisorIndexIQ Advisors LLC is the investment advisor to the Fund.

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Portfolio ManagerThe professionals jointly and primarily responsible for the day-to-daymanagement of the Fund are Greg Barrato and James Harrison.Mr. Barrato, Senior Vice President of the Advisor, has been a portfoliomanager of the Fund since February 2011 and Mr. Harrison, Vice Presidentof the Advisor, has been a portfolio manager of the Fund since April 2018.

Purchase and Sale of Fund SharesUnlike conventional mutual funds, the Fund issues and redeems Shares on acontinuous basis, at NAV, only in large blocks of Shares called “CreationUnits.” Individual Shares of the Fund may only be purchased and sold onthe secondary market through a broker-dealer. Since Shares of the Fundtrade on securities exchanges in the secondary market at their marketprice rather than their NAV, the Fund’s Shares may trade at a price greaterthan (premium) or less than (discount) the Fund’s NAV. An investor mayincur costs attributable to the difference between the highest price abuyer is willing to pay to purchase Shares of the Fund (bid) and the lowestprice a seller is willing to accept for Shares of the Fund (ask) when buying orselling Shares in the secondary market (the “bid-ask spread”). Recentinformation, including the Fund’s NAV, market price, premiums anddiscounts, and bid-ask spreads, is available online atnewyorklifeinvestments.com.

Tax InformationThe Fund’s distributions are expected to be taxed as ordinary income,qualified dividend income and/or capital gains, unless you are investingthrough a tax-deferred arrangement, such as a 401(k) plan or individualretirement account. However, subsequent withdrawals from such atax-advantaged account may be subject to U.S. federal income tax. Youshould consult your tax advisor about your specific situation.

Financial Intermediary CompensationIf you purchase the Fund through a broker-dealer or other financialintermediary (such as a bank), the Advisor or other related companies maypay the intermediary for marketing activities and presentations,educational training programs, conferences, the development oftechnology platforms and reporting systems or other services related to thesale or promotion of the Fund. These payments may create a conflict ofinterest by influencing the broker-dealer or other intermediary and yoursalesperson to recommend the Fund over another investment. Ask yoursalesperson or visit your financial intermediary’s website for moreinformation.

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IndexIQ ETF TrustMailing Address51 Madison Avenue,New York, New York 100101-888-474-7725newyorklifeinvestments.com/etf

“New York Life Investments” is both a service mark, and the common trade name, of certain investmentadvisors affiliated with New York Life Insurance Company.

MEQAI01-08/21To Statutory Prospectus To Statement of Additional Information