This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund (“Shares”). Investors may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example set forth below.

Shareholder Fees Caption [Text]

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

Operating Expenses Caption [Text]

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

Portfolio Turnover [Heading]

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Portfolio Turnover

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The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rates was 131% of the average value of its portfolio. This rate excludes the value of the portfolio securities received or delivered as a result of in-kind creations or redemptions of the Shares.

Portfolio Turnover, Rate

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131.00%

Expense Example [Heading]

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Example.

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This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The 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. The return of 5% and estimated expenses are for illustration purposes only, and should not be considered indicators of expected Fund expenses or performance, which may be greater or less than the estimates. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

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Principal Investment Strategies

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The Fund seeks to achieve its investment objective primarily through a flexible multisector investment process that allocates investments across the global fixed-income markets. The Fund, under normal circumstances, invests at least 80% of its assets in a diversified portfolio of debt or debt-related securities such as: debt or debt-related securities issued or guaranteed by the U.S. or foreign governments, their agencies or instrumentalities; obligations of international or supranational entities; debt or debt-related securities issued by U.S. or foreign corporate entities; zero coupon bonds; municipal bonds; mortgage-related and other asset-backed securities; bank loans; loan participation interests; convertible bonds; contingent convertible securities (CoCos); variable or floating rate debt securities; preferred securities; and hybrid instruments. The Fund may invest up to 60% of its assets in debt instruments that are rated below investment grade by a

nationally recognized statistical rating organization (“NRSRO”) (such securities rated lower than BBB- and Baa3), or, if unrated, judged to be of comparable quality by the Subadvisor. Securities that are rated below investment grade by NRSROs are commonly referred to as “high-yield securities” or “junk bonds.” If NRSROs assign different ratings to the same security, the Fund will use the higher rating for purposes of determining the instrument’s credit quality. The securities may be denominated in U.S. or foreign currencies, and may have fixed, variable, floating or inverse floating rates of interest. The Fund may invest without limitation in securities of foreign issuers and may invest up to 20% of its assets in emerging market issuers. Up to 20% of the Fund’s assets may be exposed to non-US currency risk. Generally, an issuer of a security is considered to be U.S. or foreign based on the issuer’s “country of risk,” as determined by a third-party service provider, such as Bloomberg. The currency exposure of non-U.S. investments may or may not be hedged. The Fund may invest up to 5% of its total assets in exchange-traded funds and other exchange-traded vehicles, mutual funds and closed-end funds.

The Fund intends to invest in a broad array of fixed-income sectors to achieve its investment objective. The Fund will not be constrained by portfolio management relative to an index. Because the Fund does not track a fixed-income index, its performance may vary at times and demonstrate low correlation to traditional fixed-income indices.

The Fund will generally seek to maintain a portfolio modified duration to worst that does not exceed the duration of the Bloomberg Barclays U.S. Universal Index by more than 1 year. Duration is a measure used to determine the sensitivity of a security’s price to changes in interest rates. The longer a security’s duration, the more sensitive it will be to changes in interest rates.

The Fund may invest in derivatives, such as futures, forwards, options, forward commitments and swap agreements, including interest rate, total return and credit default swaps to seek to enhance returns or reduce the risk of loss by hedging certain of its holdings or manage duration.

The Fund may invest in mortgage dollar rolls, to-be-announced (“TBA”) securities transactions, variable rate notes and floating rate notes. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).

Investment Process: MacKay Shields LLC (the “Subadvisor”) seeks to identify investment opportunities through an investment process focused on macroeconomic analysis and bottom-up security selection. The Subadvisor allocates the Fund’s investments among various fixed income sectors and other securities and investments based on current and projected economic and market conditions. The Fund may invest across fixed income sectors, geographies and credit qualities, and in additional types of securities and investments.

The Subadvisor’s investment process includes a risk analysis that gives consideration to a variety of security-specific risks, including but not limited to, environmental, social and governance (“ESG”) risks that may have a material impact on the performance of a security. In addition to proprietary research, the Subadvisor may use screening tools and, to the extent available, third-party data to identify ESG risk factors that may not have been captured through its own research. The Subadvisor’s consideration of ESG risk is weighed against other criteria and no sectors or industries are explicitly excluded from the Fund.

The Subadvisor may sell a security if it believes the security will no longer contribute to meeting the investment objective of the Fund. In considering whether to sell a security, the Subadvisor may evaluate, among other things, the condition of the domestic and foreign economies, and meaningful changes in the issuer’s financial condition, including changes in the issuer’s credit risk and competitiveness.

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Principal Risks

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Performance Information

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As of the date of this Prospectus, the Fund has not yet completed a full calendar year of operations and therefore does not report its performance information. The Fund’s performance current to the most recent month-end is available by calling 1-888-474-7725 or by visiting newyorklifeinvestments.com/etf.

Performance One Year or Less [Text]

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As of the date of this Prospectus, the Fund has not yet completed a full calendar year of operations and therefore does not report its performance information.

Performance Availability Phone [Text]

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1-888-474-7725

Performance Availability Website Address [Text]

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newyorklifeinvestments.com/etf

IQ MacKay Multi-Sector Income ETF | Risk Not Insured [Member]

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An investment in the Fund is not a bank deposit and it is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, the Advisor or any of its affiliates.

IQ MacKay Multi-Sector Income ETF | Risk Lose Money [Member]

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The Fund’s Shares will change in value and you could lose money by investing in the Fund.

IQ MacKay Multi-Sector Income ETF | Asset-Backed Securities Risk [Member]

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Asset-Backed Securities Risk Asset-backed securities are securities that represent interests in, and whose values and payments are based on, a “pool” of underlying assets, which may include, among others, lower-rated debt securities and corporate loans, consumer loans or mortgages and leases of property. As with other debt securities, asset-backed securities are subject to credit risk, extension risk, interest rate risk, liquidity risk and valuation risk. The impairment of the value of collateral or other assets underlying an asset-backed security, such as a result of non-payment of loans or non-performance of underlying assets, may result in a reduction in the value of such asset-backed securities and losses to the Fund.

IQ MacKay Multi-Sector Income ETF | Authorized Participant Concentration Risk [Member]

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Authorized Participant Concentration Risk Only certain large institutions may engage in creation or redemption transactions directly with the Fund (each, an “Authorized Participant”). The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that those Authorized Participants exit the business or are unable to proceed with creation and/or redemption orders with the Fund and no other Authorized Participant is able to step forward to engage in creation and redemption transactions with the Fund, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting.

IQ MacKay Multi-Sector Income ETF | Bank Loans Risk [Member]

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Bank Loans Risk Investments in bank loans are subject to the same risks as investments in other types of debt securities, including credit risk, interest rate risk, liquidity risk and valuation risk that may be heightened because of the limited public information available regarding bank loans and because loan borrowers may be leveraged and tend to be more adversely affected by changes in market or economic conditions. The Fund may invest in bank loans through participations in such loans. Investments in in a lender’s portion of a bank loan typically will result in the Fund having a contractual relationship only with such lender, not with the borrower. If the Fund holds a bank loan through another financial institution or relies on a financial institution to administer the loan, its receipt of principal and interest on the loan may be subject to the credit risk of that financial institution. It is possible that any collateral securing a loan may be insufficient or unavailable to the Fund, and that the Fund’s rights to collateral may be limited by bankruptcy or insolvency laws. Additionally, there is no central clearinghouse for loan trades and the loan market has not established enforceable settlement standards or remedies for failure to settle. As such, the secondary market for bank loans may be subject to irregular trading activity, wide bid/ask spreads and extended trade settlement periods (in some cases longer than 7 days) which may cause the Fund to be unable to realize the full value of its investment.

IQ MacKay Multi-Sector Income ETF | Cash Transactions Risk [Member]

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Cash Transactions Risk The Fund currently intends to effect creations and redemptions principally for cash, rather than for in-kind securities. For this reason, the Fund may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. The Fund may recognize a capital gain on these sales that might not have been incurred if the Fund had made a redemption in-kind. This may decrease the tax efficiency of the Fund compared to ETFs that utilize an in-kind redemption process.

IQ MacKay Multi-Sector Income ETF | Contingent Convertible Securities Risk [Member]

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Contingent Convertible Securities Risk Contingent convertible securities (CoCos) are hybrid securities most commonly issued by banking institutions that present risks similar to debt securities and convertible securities. CoCos are distinct in that they are intended to either convert into equity or have their principal written down upon the occurrence of certain “triggers.” When an issuer’s capital ratio falls below a specified trigger level, or in a regulator’s discretion depending on the regulator’s judgment about the issuer’s solvency prospects, a CoCo may be written down, written off or converted into an equity security. Due to the contingent write-down, write-off and conversion feature, CoCos may have substantially greater risk than other securities in times of financial stress. If the trigger level is breached, the issuer’s decision to write down, write off or convert a CoCo may be outside its control, and the Fund may suffer a complete loss on an investment in CoCos with no chance of recovery even if the issuer remains in existence. The value of CoCos is unpredictable and may be influenced by many factors including, without limitation: the creditworthiness of the issuer and/or fluctuations in such issuer’s applicable capital ratios; supply and demand for CoCos; general market conditions and available liquidity; and economic, financial and political events that affect the issuer, its particular market or the financial markets in general.

IQ MacKay Multi-Sector Income ETF | Convertible Securities Risk [Member]

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Convertible Securities Risk A convertible security has characteristics of both equity and debt securities and, as a result, is exposed to risks that are typically associated with both types of securities. Convertible securities are typically subordinate to an issuer’s other debt obligations. Issuers of convertible securities may be more vulnerable to changes in the economy, such as a recession or a sustained period of rising interest rates, which could affect their ability to make interest and principal payments. If an issuer stops making interest and/or principal payments, the Fund could lose its entire investment.

IQ MacKay Multi-Sector Income ETF | Counterparty Risk [Member]

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Counterparty Risk A counterparty (the other party to a transaction or an agreement or the party with whom the Fund executes transactions) to a transaction with the Fund may be unable or unwilling to make timely principal, interest, settlement or margin payments, fulfill the delivery conditions of the contract or transaction, or otherwise honor its obligations. If a counterparty fails to meet its contractual obligations the Fund will have contractual remedies pursuant to the agreements related to the transaction, but the Fund may be unable to terminate or realize any gain on the investment or transaction, resulting in a loss to the Fund. The Fund may experience significant delays in obtaining any recovery in an insolvency, bankruptcy, or other reorganization proceeding involving a counterparty (including recovery of any collateral posted by it) and may obtain limited or no recovery in such circumstances.

IQ MacKay Multi-Sector Income ETF | Credit Risk [Member]

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Credit Risk Credit risk is the risk that the issuer or guarantor of a debt instrument or the counterparty to a derivatives contract, repurchase agreement or loan of portfolio securities will be unable or unwilling to make its timely interest and/or principal payments when due or otherwise honor its obligations. Changes in an issuer’s or counterparty’s credit rating or the market’s perception of an issuer’s or counterparty’s creditworthiness may also adversely affect the value of the Fund’s investment in that issuer. The degree of credit risk depends on an issuer’s or counterparty’s financial condition and on the terms of an obligation.

IQ MacKay Multi-Sector Income ETF | Currency Risk [Member]

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

IQ MacKay Multi-Sector Income ETF | Cyber Security Risk [Member]

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

IQ MacKay Multi-Sector Income ETF | Debt Securities Risk [Member]

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Debt Securities Risk The risks of investing in debt securities include (without limitation): (i) credit risk, e.g., the issuer or guarantor of a debt security may be unable or unwilling (or be perceived as unable or unwilling) to make timely principal and/or interest payments or otherwise honor its obligations; (ii) interest rate risk, e.g., when interest rates go up, the value of a debt security generally goes down, and when interest rates go down, the value of a debt security 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 than common stock; (iv) call risk and income risk, e.g., during a period of falling interest rates, the issuer may redeem a security by repaying it early, which may reduce the Fund’s income if the proceeds are reinvested at lower interest rates; and (v) extension risk, e.g., if interest rates rise, repayments of debt securities may occur more slowly than anticipated by the market, which may drive the prices of these securities down because their interest rates are lower than the current interest rate and the securities remain outstanding longer. Debt securities most frequently trade in institutional round lot size transactions. If the Fund purchases bonds in amounts less than the institutional round lot size, which are frequently referred to as “odd” lots, the odd lot size positions may have more price volatility than institutional round lot size positions. The Fund uses a third-party pricing service to value bond holdings and the pricing service values bonds assuming orderly transactions of an institutional round lot size.

IQ MacKay Multi-Sector Income ETF | Derivatives Risk [Member]

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Derivatives Risk Derivatives are investments whose value depends on (or is derived from) the value of an underlying instrument, such as a security, asset, reference rate or index and involve risks different from, and possibly greater than, the risks associated with other investments. These risks include: (i) the risk that the counterparty to a derivatives transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to, changing supply and demand relationships, government programs and policies, national and international political and economic events, changes in interest rates, inflation and deflation, and changes in supply and demand relationships. Unlike other investments, derivative contracts often have leverage inherent in their terms. The use of leveraged derivatives can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on the Fund’s Share price. The effects of leverage may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so.

IQ MacKay Multi-Sector Income ETF | Emerging Markets Securities Risk [Member]

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Emerging Markets Securities Risk Securities of issuers based in countries with developing economies (emerging market countries) may present market, credit, currency, liquidity, legal, political and other risks different from, or greater than, the risks of investing in developed market countries and are generally considered speculative in nature. Emerging market countries are subject to greater market volatility, lower trading volume, political and economic instability, uncertainty regarding the existence of trading markets, rapid inflation, possible repatriation of investment income and capital, currency convertibility issues, less uniform accounting standards and more governmental limitations on foreign investment than more developed markets. Laws regarding foreign investment in emerging market securities, securities regulation, title to securities, and shareholder rights may change quickly and unpredictably. In addition, the enforcement of systems of taxation at federal, regional and local levels in emerging market countries may be inconsistent and subject to sudden change.

IQ MacKay Multi-Sector Income ETF | Exchange Traded Products Risk [Member]

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Exchange Traded Products Risk Unlike an investment in a mutual fund, the value of the Fund’s investment in other exchange-traded funds or exchange-traded investment products (“ETPs”) is based on its market price (rather than NAV) and the Fund could lose money due to premiums/discounts of the ETP (which could cause the Fund to buy shares at market prices that are higher than their value or sell shares at market prices that are lower than their value); the failure of an active trading market to develop; or exchange trading halts or delistings. An investment in the Fund will entail more costs and expenses than a direct investment in any underlying ETP. As the Fund’s allocations to underlying ETPs changes, or the expense ratio of underlying ETPs change, the operating expenses borne by the Fund from such investments may increase or decrease.

IQ MacKay Multi-Sector Income ETF | Focused Investment Risk [Member]

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Focused Investment Risk To the extent that the Fund invests a large percentage of its assets in a single asset class or the securities of issuers within the same country, group of countries, region, industry, group of industries or sector, an adverse economic, market, political or regulatory development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. Different asset classes, countries, groups of countries, regions, industries, groups of industries or sectors tend to go through cycles of outperformance and underperformance in comparison to each other and to the general financial markets.

IQ MacKay Multi-Sector Income ETF | Foreign Currency Forward Contracts Risk [Member]

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Foreign Currency Forward Contracts Risk When trading in foreign currency forward contracts, the Fund will contract with a foreign or domestic bank, or a foreign or domestic securities dealer, to make or take future delivery of a specified amount of a particular currency. There are no limitations on daily price moves in such forward contracts, and banks and dealers are not required to continue to make markets in such contracts. Governmental imposition of credit controls might limit any such forward contract trading. Foreign currency forward contracts involve certain risks, including the risk of failure of the counterparty to perform its obligations under the contract and the risk that the use of forward contracts may not serve as a complete hedge because of an imperfect correlation between movements in the prices of the contracts and the prices of the currencies hedged.

IQ MacKay Multi-Sector Income ETF | Foreign Securities Risk [Member]

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Foreign Securities Risk Investments in the securities of non-U.S. issuers involve risks beyond those associated with investments in U.S. securities. These additional risks include greater market volatility, the availability of less reliable financial information, higher transactional and custody costs, taxation by foreign governments, decreased market liquidity and political instability. Some countries and regions have experienced security concerns, war or threats of war and aggression, terrorism, economic uncertainty, natural and environmental disasters and/or systemic market dislocations that have led, and in the future may lead, to increased short-term market volatility and may have adverse long-term effects on the U.S. and world economies and markets generally. Foreign issuers are often 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 or regulations that may negatively impact the Fund’s ability to invest in foreign securities or may prevent the Fund from repatriating its investments. Less developed securities markets are more likely to experience problems with the clearing and settling of trades, as well as the holding of securities by local banks, agents and depositories. The less developed a country’s securities market is, the greater the likelihood of clearing, custody and trade settlement problems.

IQ MacKay Multi-Sector Income ETF | Foreign Securities Valuation Risk [Member]

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Foreign Securities Valuation Risk The Fund’s value may be impacted by events that cause the fair value of foreign securities to materially change between the close of the local exchange on which they trade and the time at which the Fund prices its Shares. Additionally, because foreign exchanges on which securities held by the Fund may be open on days when the Fund does not price its Shares, the potential exists for the value of the securities in the Fund’s portfolio to change on days when shareholders will not be able to purchase or sell the Fund’s Shares.

IQ MacKay Multi-Sector Income ETF | High Yield Securities Risk [Member]

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High Yield Securities Risk High yield securities, or “junk” bonds, generally offer a higher current yield than the yield available from higher grade issues, but are subject to greater market fluctuations, are less liquid and provide a greater risk of loss than investment grade securities, and therefore are considered to be highly speculative. In general, high yield securities may have a greater risk of default than other types of securities and could cause income and principal losses for the Fund.

IQ MacKay Multi-Sector Income ETF | Income Risk [Member]

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Income Risk The Fund’s income may decline when interest rates fall or if there are defaults in its portfolio. This decline can occur because the Fund may subsequently invest in lower-yielding securities when securities in its portfolio mature or the Fund otherwise needs to purchase additional securities.

IQ MacKay Multi-Sector Income ETF | Interest Rate Risk [Member]

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Interest Rate Risk An increase in interest rates may cause the value of securities held by the Fund to decline. Fixed income securities with longer durations tend to be more sensitive to changes in interest rates, making them more volatile than securities with shorter durations or floating or adjustable interest rates. The negative impact on the Fund from potential interest rate increases could be swift and significant, including falling market values, increased redemptions and reduced liquidity. The Fund may be subject to a greater risk of rising interest rates during periods of low interest rates. When interest rates rise, certain obligations will be paid off by the issuer (or other obligated party) more slowly than anticipated, causing the value of these securities to fall. As a result, in a period of rising interest rates, securities may exhibit additional volatility and may lose value. The value of securities with longer maturities generally changes more in response to changes in interest rates than does the value of securities with shorter maturities. During periods of falling interest rates, an issuer of a callable security held by the Fund may “call” or repay the security before its stated maturity, which may result in the Fund having to reinvest the proceeds in securities with lower yields, resulting in a decline in the Fund’s income, or in securities with greater risks or with other less favorable features.

IQ MacKay Multi-Sector Income ETF | Issuer Risk [Member]

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Issuer Risk The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes to the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.

IQ MacKay Multi-Sector Income ETF | Liquidity Risk [Member]

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Liquidity Risk Liquidity risk exists when particular investments are difficult to purchase or sell. Certain investments may be subject to restrictions on resale, trade over-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 investments at favorable times or prices (or at all), or at the prices approximating those at which the Fund currently values them. Illiquid securities may trade at a discount from comparable, more liquid investments and may be subject to wide fluctuations in market value. Holding illiquid securities may also cause the bid-ask spread of the Fund’s Shares to widen.

IQ MacKay Multi-Sector Income ETF | Market Risk [Member]

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Market Risk Market risks include political, regulatory, market and economic developments, including developments that impact specific economic sectors, industries or segments of the market, which may affect the Fund’s value. Turbulence in financial markets, tariffs and other protectionist measures, political developments and uncertainty, central bank policy, and reduced liquidity in equity, credit and fixed income markets may negatively affect many issuers worldwide, which could have an adverse effect on the Fund. During a general downturn in the securities markets, multiple asset classes may be negatively affected. Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, public health crises and related geopolitical events have led, and in the future may lead, to disruptions in the U.S. and world economies and markets, which may increase financial market volatility and have significant adverse direct or indirect effects on the Fund and its investments. Market disruptions could cause the Fund to lose money, experience significant redemptions, and encounter operational difficulties. Although multiple asset classes may be affected by a market disruption, the duration and effects may not be the same for all types of assets.

IQ MacKay Multi-Sector Income ETF | Municipal Bond Risk [Member]

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Municipal Bond Risk Issuers, including governmental issuers, may be unable to pay their obligations as they come due. The values of municipal bonds that depend on a specific revenue source to fund their payment obligations may fluctuate as a result of actual or anticipated changes in the cash flows generated by the revenue source or changes in the priority of the municipal obligation to receive the cash flows generated by the revenue source. The values of municipal bonds held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. This risk would be heightened to the extent that the Fund invests a substantial portion of its assets in municipal bonds issued pursuant to similar projects or whose interest is paid solely from revenues of similar projects. In addition, income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of an issuer or other obligated party. Loss of tax-exempt status may cause interest received and distributed to shareholders by the Fund to be taxable and may result in a significant decline in the values of such municipal securities. There are various different types of municipal bonds, each with its own unique risk profile. Some of these risks include:

IQ MacKay Multi-Sector Income ETF | General Obligation Bonds Risk [Member]

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

IQ MacKay Multi-Sector Income ETF | Revenue Bonds (including Industrial Development Bonds) Risk [Member]

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

IQ MacKay Multi-Sector Income ETF | Private Activity Bonds Risk [Member]

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Private Activity Bonds Risk — municipalities and other public authorities issue private activity bonds to finance development of industrial facilities for use by a private enterprise, which is solely responsible for paying the principal and interest on the bonds, and payment under these bonds depends on the private enterprise’s ability to do so;

IQ MacKay Multi-Sector Income ETF | Moral Obligation Bonds Risk [Member]

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Moral Obligation Bonds Risk — moral obligation bonds are generally issued by special purpose public authorities of a state or municipality. If the issuer is unable to meet its obligations, repayment of these bonds becomes a moral commitment, but not a legal obligation, of the state or municipality;

IQ MacKay Multi-Sector Income ETF | Municipal Notes Risk [Member]

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Municipal Notes Risk — municipal notes are shorter-term municipal debt obligations that pay interest that is, in the opinion of bond counsel for the issuer at the time of issuance, generally excludable from gross income for federal income tax purposes (except that the interest may be includable in taxable income for purposes of the federal alternative minimum tax) and that have a maturity that is generally one year or less. If there is a shortfall in the anticipated proceeds, the notes may not be fully repaid and the Fund may lose money; and

IQ MacKay Multi-Sector Income ETF | Municipal Lease Obligations Risk [Member]

Risk/Return:

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

IQ MacKay Multi-Sector Income ETF | Municipal Bond Market Liquidity Risk [Member]

Risk/Return:

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Municipal Bond Market Liquidity Risk Inventories of municipal bonds held by brokers and dealers may decrease, lessening their ability to make a market in these securities. Any reduction in market-making capacity has the potential to decrease the Fund’s ability to buy or sell municipal bonds and increase price volatility and trading costs, particularly during periods of economic or market stress. As a result, the Fund may be forced to accept a lower price to sell a municipal bond, to sell other securities to raise cash, or to give up an investment opportunity, any of which could have a negative effect on performance.

IQ MacKay Multi-Sector Income ETF | Operational Risk [Member]

Risk/Return:

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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 and Advisor 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 significant operational risks.

IQ MacKay Multi-Sector Income ETF | Portfolio Management Risk [Member]

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Portfolio Management Risk The Fund is subject to portfolio management risk because it is an actively managed portfolio. In managing the Fund’s investment portfolio, the portfolio managers will apply investment techniques and risk analyses that may not produce the desired result or, while it may be the desired result, may underperform other types of investment strategies. The Subadvisor may give consideration to certain ESG criteria when evaluating an investment opportunity. The application of ESG criteria may result in the Fund (i) having exposure to certain securities or industry sectors that are significantly different than the composition of the Fund’s benchmark; and (ii) performing differently than other funds and strategies in its peer group that do not take into account ESG criteria or the Fund’s benchmark. There can be no guarantee that the Fund will meet its investment objective(s).

IQ MacKay Multi-Sector Income ETF | Portfolio Turnover Risk [Member]

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Portfolio Turnover Risk The Fund’s strategy may frequently involve buying and selling portfolio securities to rebalance the Fund’s investment exposures. High portfolio turnover may result in the Fund paying higher levels of transaction costs and generating greater tax liabilities for shareholders. Portfolio turnover risk may cause a Fund’s performance to be less than expected.

IQ MacKay Multi-Sector Income ETF | Preferred Securities Risk [Member]

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Preferred Securities Risk Preferred securities combine some of the characteristics of both common stocks and bonds. Preferred securities are typically subordinated to bonds and other debt securities in a company’s capital structure in terms of priority to corporate income, subjecting them to greater credit risk than those debt securities. Generally, holders of preferred securities have no voting rights with respect to the issuing company unless preferred dividends have been in arrears for a specified number of periods, at which time the preferred security holders may obtain limited rights. In certain circumstances, an issuer of preferred securities may defer payment on the securities and, in some cases, redeem the securities prior to a specified date. Preferred securities may also be substantially less liquid than other securities, including common stock.

IQ MacKay Multi-Sector Income ETF | Private Placement and Restricted Securities Risk [Member]

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Private Placement and Restricted Securities Risk The Fund may invest in privately issued securities, including those which may be resold only in accordance with Rule 144A under the Securities Act of 1933, as amended. Securities acquired in a private placement generally are subject to strict restrictions on resale, and there may be no market or a limited market for the resale of such securities. Therefore, the Fund may be unable to dispose of such securities when it desires to do so or at the most favorable price. This potential lack of liquidity also may make it more difficult to accurately value these securities.

IQ MacKay Multi-Sector Income ETF | Secondary Market Trading Risk [Member]

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Secondary Market Trading Risk Although the Fund’s Shares are listed for trading on one or more securities exchanges, there can be no assurance that an active trading market for such Shares will develop or be maintained by market makers or Authorized Participants. The trading of Shares on securities exchanges is subject to the risk of irregular trading activity. Securities exchanges have requirements that must be met in order for Shares to be listed. There can be no assurance that the requirements of an exchange necessary to maintain the listing of Shares will continue to be met. This risk is particularly acute for funds that fail to attract a large number of shareholders. Pursuant to an exchange’s “circuit breaker” rules, trading in the Fund’s Shares may be halted due to extraordinary market volatility. Additionally, 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. In the event market makers cease making a market in the Fund’s Shares or Authorized Participants stop submitting purchase or redemption orders for creation units, the Fund’s Shares may trade at a larger premium or discount to its NAV.

IQ MacKay Multi-Sector Income ETF | Short Sales Risk [Member]

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Short Sales Risk Short sales are transactions in which the Fund sells a security it does not own, or uses derivatives, such as futures or swaps, to effect short exposure to a particular reference asset. Such a position subjects the Fund to the risk that instead of declining, the price of the security or reference asset to which the Fund has short exposure will rise. If the price of the security or reference asset increases between the date of the short sale and the date on which the Fund replaces the security or otherwise closes out its short position, the Fund will experience a loss, which is theoretically unlimited since there is a theoretically unlimited potential for the market price of a security or other instrument sold short to increase.

IQ MacKay Multi-Sector Income ETF | Swap Agreements Risk [Member]

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

IQ MacKay Multi-Sector Income ETF | Trading Price Risk [Member]

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Trading Price Risk Although it is generally expected that the market price of the Fund’s Shares will approximate the Fund’s NAV, there may be times when the market price and the NAV vary significantly. Shares of the Fund trade on securities exchanges at prices at, above or below the Fund’s most recent NAV. The NAV of the Fund is calculated at the end of each business day and fluctuates with changes in the market value of the Fund’s holdings. The trading price of the Fund’s Shares fluctuates continuously throughout trading hours based on market supply of and demand for Shares and the Fund’s NAV, among other reasons. As a result, the trading prices of the Fund’s Shares may deviate significantly from NAV during periods of market volatility. The market price of the Fund’s Shares during the trading day, like the price of any exchange-traded security, includes a “bid/ask” spread charged by market makers or other participants that trade the Shares. In times of severe market disruption, the bid/ask spread can increase significantly. At those times, Shares are most likely to be traded at a discount to NAV, and the discount is likely to be greatest when the price of Shares is falling fastest, which may be the time that an investor most wants to sell their Shares. The risk of wide bid and ask spreads may be especially pronounced for smaller funds. In addition, increased market volatility may cause wider spreads.

IQ MacKay Multi-Sector Income ETF | Valuation Risk [Member]

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Valuation Risk When valuing the Fund’s portfolio investments, if a market quotation is readily available for a portfolio investment, that investment will generally be valued at the market value. However, unlike publicly traded securities that trade on national securities exchanges, there is no central place or exchange for trading most debt securities and thus readily available market quotations are unavailable. Debt securities generally trade on an “over-the-counter” market. Due to the lack of centralized information and trading, and variations in lot sizes of certain debt securities, the valuation of debt securities may carry more uncertainty and risk than that of publicly traded securities. Debt securities are commonly valued by third-party pricing service providers that utilize a range of market-based inputs and assumptions, including readily available market quotations obtained from broker-dealers making markets in such securities, cash flows and transactions for comparable instruments. However, because the available information is less reliable and more subjective, elements of judgment may play a greater role in valuation of debt securities than for other types of securities. Additionally, pricing service providers generally price debt securities assuming orderly transactions of an institutional “round lot” size, but some trades may occur in smaller, “odd lot” sizes, often at lower prices than institutional round lot trades. Valuing the Fund’s investments using fair value pricing provided by pricing service providers will result in prices that may differ from current market valuations and that may not be the prices at which those investments could have been sold during the period in which the particular fair values were used. It is possible that the fair value determined for a portfolio instrument may be materially different from the value that could be realized upon the sale of that instrument.

IQ MacKay Multi-Sector Income ETF | Variable and Floating Rate Instruments Risk [Member]

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Variable and Floating Rate Instruments Risk Variable and floating rate instruments include debt securities issued by corporate and governmental entities, bank loans, mortgage-backed securities and asset-backed securities, preferred equity securities and derivative variable rate securities, such as inverse floaters. Variable and floating rate instruments are structured so that the instrument’s coupon rate fluctuates based upon the level of a reference rate. A variable or floating rate instrument’s coupon rate resets periodically according to its terms. Consequently, in a rising interest rate environment, variable and floating rate instruments with coupon rates that reset infrequently may lag behind the changes in market interest rates.

IQ MacKay Multi-Sector Income ETF | Zero Coupon Securities Risk [Member]

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Zero Coupon Securities Risk Zero coupon securities do not pay interest on a current basis. The interest earned on zero coupon securities is, implicitly, automatically compounded and paid out at maturity. Zero coupon securities are subject to substantially greater market price fluctuations during periods of changing prevailing interest rates than are comparable securities that make current distributions of interest.

IQ MacKay Multi-Sector Income ETF | IQ MacKay Multi-Sector Income ETF

Risk/Return:

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Shareholder Fees (fees paid directly from your investment):

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none

Management Fee

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0.40%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.34%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.74%

Expense Waiver/Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.34%

^[1]

Total Annual Fund Operating Expenses After Expense Waiver/Reimbursement

rr_NetExpensesOverAssets

0.40%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 41

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

128

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

224

Expense Example, with Redemption, 10 Years

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$ 505

[1]

IndexIQ Advisors LLC (the “Advisor”) has contractually agreed to waive or reduce its management fee and/or reimburse expenses of the Fund in an amount that limits “Total Annual Fund Operating Expenses” (exclusive of interest, taxes, brokerage commissions, dividend payments on short sales, other expenditures which are capitalized in accordance with generally accepted accounting principles, other extraordinary expenses not incurred in the ordinary course of a Fund’s business, and amounts, if any, payable pursuant to a plan adopted in accordance with Rule 12b-1 under the 1940 Act) to not more than 0.40% of the average daily net assets of the Fund. The agreement will remain in effect permanently unless terminated by the Board of Trustees of the Fund.