485BPOS

As filed with the Securities and Exchange Commission on September 12, 2011

Securities Act File No. 333-152915
Investment Company Act File No. 811-22227

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	|X|
Post-Effective Amendment No. 21	|X|
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	|X|
Amendment No. 23	|X|
(Check appropriate box or boxes.)

INDEXIQ ETF TRUST
(Exact Name of Registrant as Specified in Charter)

800 Westchester Avenue
Suite N611
Rye Brook, NY 10573
(Address of Principal Executive Offices) (Zip Code)

Registrant’s Telephone Number, including Area Code: (914) 697-4946

Adam S. Patti
IndexIQ Advisors LLC
800 Westchester Avenue
Suite N611
Rye Brook, NY 10573
(Name and Address of Agent for Service)

With a copy to:

Peter J. Shea, Esq.
Katten Muchin Rosenman LLP
575 Madison Avenue
New York, New York 10022

Approximate Date of Proposed Public Offering:

x   immediately upon filing pursuant to paragraph (b).

o     on (date) pursuant to paragraph (b).

o      60 days after filing pursuant to paragraph (a)(1).

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

o      75 days after filing pursuant to paragraph (a)(2).

o      on [date] pursuant to paragraph (a)(2).

If appropriate, check the following box:

o This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

Title of Securities Being Registered: Shares of Beneficial Interest, no par value.

SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Rye Brook, and state of New York on this 12th day of September, 2011.

INDEXIQ ETF TRUST
By:	/s/	Adam S. Patti
		Adam S. Patti
		President

     Pursuant to the requirements of the Securities Act, this Registration Statement has been signed below by the following persons in the capacities and on the date indicated.

Name	Title		Date
*/s/ Reena Aggarwal	Trustee		September 12, 2011
Reena Aggarwal
*/s/ Gene Chao	Trustee		September 12, 2011
Gene Chao
	Chairman, Trustee, President
/s/ Adam S. Patti	and Principal Executive		September 12, 2011
Adam S. Patti	Officer
	Chief Compliance Officer,		September 12, 2011
/s/ David Fogel	Treasurer and Executive
David Fogel	Vice President
	*By:	/s/ Gregory D. Bassuk
		Gregory D. Bassuk,
		Attorney in fact

C-1

INDEXIQ ETF TRUST 

EXHIBITS INDEX

EXHIBITS	EXHIBIT NO.
XBRL Instance Document	EX-101.INS
XBRL Taxonomy Extension Schema Document	EX-101.SCH
XBRL Taxonomy Extension Definition Linkbase	EX-101.DEF
XBRL Taxonomy Extension Labels Linkbase	EX-101.LAB
XBRL Taxomomy Extension Presentation Linkbase	EX-101.PRE

XML



IQ Real Return ETF

RISK/RETURN

Investment Objective

The Fund seeks investment results that correspond (before fees and expenses) generally to the price and yield performance of its underlying index, the IQ Real Return Index (the “Underlying Index”).

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors purchasing Shares on a national securities exchange, national securities association or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker which are not reflected in the table set forth below.

Shareholder Fees (fees paid directly from your investment): No shareholder fees are levied by the Fund for purchases and sales made on the Secondary Market.

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

Annual Fund Operating Expenses		IQ Real Return ETF
Management Fee		0.48%
Distribution and/or Service (12b-1) Fees		none
Other Expenses		0.01%
Acquired Fund Fees & Expenses	[1]	0.17%
Total Annual Fund Operating Expenses	[1]	0.66%

Example.

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

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
IQ Real Return ETF	67	211	368	822

Expense Example, No Redemption (USD $)	1 Year	3 Years	5 Years	10 Years
IQ Real Return ETF	67	211	368	822

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 52% of the average value of its portfolio.

Principal Investment Strategies

The Fund is a “fund of funds” which means it invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index, which includes underlying funds. The Underlying Index consists of a number of components (“Underlying Index Components”) selected in accordance with the rules-based methodology of such Underlying Index, which was developed by Financial Development Holdco LLC (“IndexIQ”), the parent company of IndexIQ Advisors LLC, the Fund’s investment advisor (the “Advisor”). Such Underlying Index Components will include primarily ETFs and/or other exchange-traded vehicles issuing equity securities organized in the U.S., such as exchange traded commodity pools (“ETVs”). The Fund may also invest in one or more financial instruments, including but not limited to futures contracts and swap agreements (collectively, “Financial Instruments”).

The Fund employs a “passive management” — or indexing — investment approach designed to track the performance of the Underlying Index. The Underlying Index seeks to provide investors with a hedge against the U.S. inflation rate by providing a “real return” or a return above the rate of inflation, as represented by the CPI (the “Strategy”). The CPI, or the Consumer Price Index, which is published by the Bureau of Labor Statistics, is a measure of the average change in prices over time of goods and services purchased by households. The CPI is reported with monthly frequency, but due to seasonality and other factors the monthly change in the CPI is reported both as the 1-month change and also on a rolling 12-month basis (the “Rolling 12-month CPI Returns”). It is the Rolling 12-month CPI Returns, not the monthly returns of the CPI, that the Underlying Index incorporates into its construction process.

The Underlying Index includes exposures to asset classes whose returns incorporate inflation expectations in an attempt to achieve its investment objective. This is based on the premise that capital market returns tend to be forward looking and anticipate economic developments, including inflation expectations. Since the Underlying Index’s objective is to provide a “real return,” as described above, the index construction process involves adding a real return target over and above the CPI returns and using the resulting

“nominal returns” (i.e., inflation plus real return) to determine the weights of the Underlying Index Components.

The Underlying Index Components of this Strategy generally provide exposures to:

• U.S. large cap equity;

• U.S. small cap equity;

• Foreign equity (Europe, Australasia & Far East);

• U.S. government short-, intermediate-, and long-term maturity obligations;

• Foreign currencies and currency futures;

• U.S. real estate; and

• Commodities.

For additional information about the Fund’s principal investment strategies, see “Additional Description of the Principal Strategies of the Funds.”

Principal Risks

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk and the Fund does not represent a complete investment program. As with all investments, you may lose money in the Fund. Therefore, you should consider carefully the following risks before investing in the Fund. A more complete discussion of Principal Risks is included under “Additional Description of the Principal Risks of the Funds.”

Fund of Funds Risk

The Fund’s investment performance, because it is a fund of funds, depends on the investment performance of the Underlying ETFs in which it invests.

Underlying Funds Risk

An investment in the Fund is subject to the risks associated with the Underlying ETFs that comprise the Fund’s Underlying Index.

Exchange Traded Vehicle Risk

The value of a Fund’s investment in ETFs, ETVs and exchange-traded notes (“ETNs”) is based on stock market prices and the Fund could lose money due to stock market developments, the failure of an active trading market to develop or exchange trading halts or de-listings.

Index Risk

The Underlying Index is new, has limited historical performance data, and may not be successful in replicating the performance of its target strategies.

Tracking Error Risk

Although the Fund attempts to track the performance of its Underlying Index, the Fund may not be able to duplicate its exact composition or return for any number of reasons.

Market Risk

The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably.

New Fund Risk

The Fund is a new fund. As a new fund, there can be no assurance that it will grow to or maintain an economically viable size, in which case it may experience greater tracking error to its Underlying Index than it otherwise would at higher asset levels or it could ultimately liquidate.

Trading Price Risk

Although it is expected that generally the market price of the Shares will approximate the Fund’s NAV, there may be times when the market price in the Secondary Market and the NAV vary significantly.

Equity Securities Risk

The Fund may have significant exposure to the equity markets through its investment in certain ETFs, which, in turn, may subject the Fund to certain risks, including price fluctuations in response to many factors.

Fixed Income Securities Risk

The Fund may have significant exposure to the fixed income markets through its investment in certain ETFs, which, in turn, may subject the Fund to certain risks, including credit risk and interest rate risk.

Performance Information

The bar chart that follows shows the annual total returns of the Fund’s for a full calendar year. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one calendar year compared with its underlying index and another broad measure of market performance. The Barclays Capital U.S. TIPS Index is an unmanaged index comprised of all U.S. Treasury Inflation-Protected Securities rated investment grade (Baa3 or better), have at least one year to final maturity, and at least $250 million par amount outstanding. The Barclays Capital U.S. Short Treasury Bond Index measures the performance of public obligations of the U.S. Treasury that have a remaining maturity of between 1 and 12 months.

All returns assume reinvestment of dividends and distributions. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Fund performance current to the most recent month-end is available by calling 1-888-934-0777 or by visiting www.indexiq.com.

The Fund’s year-to-date total return as of the June 30, 2011 was -0.63%.

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

	Return	Quarter/Year
Highest Return	0.72%	2Q/2010
Lowest Return	-0.08%	1Q/2010

Average Annual Total Returns as of December 31, 2010

Average Annual Total Returns		1 Year	Since Inception		Inception Date
IQ Real Return ETF		1.77%	1.57%	[1]	Oct. 26, 2009
IQ Real Return ETF After Taxes on Distributions	[2]	1.77%	1.56%	[1]
IQ Real Return ETF After Taxes on Distributions and Sales		1.15%	1.33%	[1]
IQ Real Return ETF IQ Real Return Index		2.39%	2.57%	[1]
IQ Real Return ETF Barclays Capital U.S. TIPS Index		6.30%	6.90%	[1]
IQ Real Return ETF Barclays Capital U.S. Short Treasury Bond Index		0.29%	0.31%	[1]

IQ Merger Arbitrage ETF

RISK/RETURN

Investment Objective

The Fund seeks investment results that correspond (before fees and expenses) generally to the price and yield performance of its underlying index, the IQ Merger Arbitrage Index (the “Underlying Index”).

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors purchasing Shares on a national securities exchange, national securities association or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker which are not reflected in the table set forth below.

Shareholder Fees (fees paid directly from your investment): No shareholder fees are levied by the Fund for purchases and sales made on the Secondary Market.

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

Annual Fund Operating Expenses		IQ Merger Arbitrage ETF
Management Fee		0.75%
Distribution and/or Service (12b-1) Fees		none
Other Expenses	[1]	0.01%
Total Annual Fund Operating Expenses		0.76%

Example.

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

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
IQ Merger Arbitrage ETF	78	243	422	942

Expense Example, No Redemption (USD $)	1 Year	3 Years	5 Years	10 Years
IQ Merger Arbitrage ETF	78	243	422	942

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 365% of the average value of its portfolio.

Principal Investment Strategies

The Fund employs a “passive management” — or indexing — investment approach designed to track the performance of the Underlying Index, which was developed by Financial Development Holdco LLC (“IndexIQ”), the parent company of IndexIQ Advisors LLC, the Fund’s investment advisor (the “Advisor”). The Underlying Index seeks to employ a systematic investment process designed to identify opportunities in companies whose equity securities trade in developed markets, including the U.S., and which are involved in announced mergers, acquisitions and other buyout-related transactions. The Underlying Index seeks to capitalize on the spread between the current market price of the target company’s stock and the price received by the holder of that stock upon consummation of the buyout-related transaction. In addition, the Underlying Index includes short exposure to the U.S. and non-U.S. equity markets.

The Fund invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index. The Underlying Index consists of a number of Underlying Index Components selected in accordance with IndexIQ’s rules-based methodology. Such Underlying Index Components will include primarily U.S. and non-U.S. equity securities. In addition, the Fund may invest up to 20% of its net assets in investments not included in its Underlying Index, but which the Advisor believes will help the Fund track its Underlying Index. The Fund may also invest in one or more financial instruments, including but not limited to futures contracts and swap agreements (collectively, “Financial Instruments”).

Pursuant to the Underlying Index’s rules, to the extent there are an insufficient number of target companies in which to invest, insufficient liquidity exists in such companies, or target companies are removed from the Underlying Index between monthly reconstitutions, the Underlying Index will allocate the available cash to one or more short-term fixed income ETFs. In seeking to track the Underlying Index, the Funds may invest, with approximately the same allocation proportions as the Underlying Index, in short-term fixed income ETFs, money market instruments, high quality short-term debt securities, or derivative securities thereon. To the extent the Fund invests in cash and cash equivalents, the Fund will not be pursuing a merger arbitrage strategy.

For additional information about the Fund’s principal investment strategies, see “Additional Description of the Principal Strategies of the Funds.”

Principal Risks

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk and the Fund does not represent a complete investment program. As with all investments, you may lose money in the Fund. Therefore, you should consider carefully the following risks before investing in the Fund. A more complete discussion of Principal Risks is included under “Additional Description of the Principal Risks of the Funds.”

Index Risk

The Underlying Index is new, has limited historical performance data, and may not be successful in replicating the performance of its target strategies.

Tracking Error Risk

Although the Fund attempts to track the performance of its Underlying Index, the Fund may not be able to duplicate its exact composition or return for any number of reasons.

Merger Arbitrage Risks

The principal risk associated with the Fund’s investments is that certain of the proposed takeover transactions in which the Fund invests may be renegotiated, terminated or involve a longer time frame than originally contemplated for business reasons or due to regulatory oversight or for other reasons, in each case which may negatively impact the Fund’s returns.

High Portfolio Turnover Risk

The Fund’s investment strategy is likely to result in high portfolio turnover, which, in turn, may result in increased transaction costs to the Fund and lower total returns.

Non-Diversified Risk

The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 (the “1940 Act”) and is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest larger proportions of its assets in a single industry within the industries that comprise the Underlying Index.

Investment in Foreign Merger Transactions Risk

Investments in foreign companies involved in pending mergers, takeovers and other corporate reorganizations may entail political, cultural, regulatory, legal and tax risks different from those associated with comparable transactions in the U.S.

Market Risk

The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably.

New Fund Risk

The Fund is a new fund. As a new fund, there can be no assurance that it will grow to or maintain an economically viable size, in which case it may experience greater tracking error to its Underlying Index than it otherwise would at higher asset levels or it could ultimately liquidate.

Trading Price Risk

Although it is expected that generally the market price of the Shares will approximate the Fund’s NAV, there may be times when the market price in the Secondary Market and the NAV vary significantly.

Foreign Securities Risk

When the Fund invests in foreign markets, it will be subject to risk of loss not typically associated with domestic markets.

Mid and Small Capitalization Companies Risk

Stocks of mid and small capitalization companies generally are more volatile, more vulnerable to adverse business and economic developments, and more thinly traded relative to those of larger companies.

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, or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Equity Securities Risk

The prices of equity securities change in response to many factors.

Foreign Securities Valuation Risk

Because foreign exchanges may be open on days when the Fund does not price its shares, the value of the securities in the Fund’s portfolio may change on days when shareholders of the Fund will not be able to purchase or sell the Fund’s shares.

Performance Information

The bar chart that follows shows the annual total returns of the Fund’s for a full calendar year. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one calendar year compared with its underlying index and additional broad measures of market performance. The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets (performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses). The S&P 500^® Index is a broad-based unmanaged index of 500 stocks, which is designed to represent the equity market in general performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses).

All returns assume reinvestment of dividends and distributions. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Fund performance current to the most recent month-end is available by calling 1-888-934-0777 or by visiting www.indexiq.com.

The Fund’s year-to-date total return as of the June 30, 2011 was 0.96%.

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

	Return	Quarter/Year
Highest Return	2.75%	3Q/2010
Lowest Return	-3.24%	2Q/2010

Average Annual Total Returns as of December 31, 2010

Average Annual Total Returns		1 Year	Since Inception		Inception Date
IQ Merger Arbitrage ETF		(0.36%)	0.78%	[1]	Nov. 16, 2009
IQ Merger Arbitrage ETF After Taxes on Distributions	[2]	(0.81%)	0.37%	[1]
IQ Merger Arbitrage ETF After Taxes on Distributions and Sales		(0.23%)	0.43%	[1]
IQ Merger Arbitrage ETF IQ Merger Arbitrage Index		0.98%	2.08%	[1]
IQ Merger Arbitrage ETF MSCI World Index		12.34%	10.55%	[1]
IQ Merger Arbitrage ETF S&P 500® Index		15.06%	14.09%	[1]

IQ Global Resources ETF

RISK/RETURN

Investment Objective

The Fund seeks investment results that correspond (before fees and expenses) generally to the price and yield performance of its underlying index, the IQ Global Resources Index (the “Underlying Index”).

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors purchasing Shares on a national securities exchange, national securities association or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker which are not reflected in the table set forth below.

Shareholder Fees (fees paid directly from your investment): No shareholder fees are levied by the Fund for purchases and sales made on the Secondary Market.

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

Annual Fund Operating Expenses		IQ Global Resources ETF
Management Fee		0.75%
Distribution and/or Service (12b-1) Fees		none
Other Expenses	[1]	0.01%
Total Annual Fund Operating Expenses		0.76%

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

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
IQ Global Resources ETF	78	243	422	942

Expense Example, No Redemption (USD $)	1 Year	3 Years	5 Years	10 Years
IQ Global Resources ETF	78	243	422	942

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 117% of the average value of its portfolio.

Principal Investment Strategies

The Fund employs a “passive management” — or indexing — investment approach designed to track the performance of the Underlying Index, which was developed by Financial Development Holdco LLC (“IndexIQ”), the parent company of IndexIQ Advisors LLC, the Fund’s investment advisor (the “Advisor”). The Underlying Index seeks to employ a systematic investment process designed to identify opportunities in markets exhibiting trending or momentum characteristics across commodity asset classes, represented by companies that operate in commodity-specific market segments and whose equity securities trade in developed markets, including the U.S. These segments include Livestock; Precious Metals; Grains, Food and Fiber; Energy; Metals; Timber; Coal; and Water. In addition, the Underlying Index includes short exposure to the U.S. and non-U.S. equity markets.

The Fund invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index. The Underlying Index consists of a number of Underlying Index Components selected in accordance with IndexIQ’s rules-based methodology. Such Underlying Index Components will include primarily U.S. and non-U.S. equity securities. In addition, the Fund may invest up to 20% of its net assets in investments not included in its Underlying Index, but which the Advisor believes will help the Fund track its Underlying Index. The Fund may also invest in one or more financial instruments, including but not limited to futures contracts and swap agreements (collectively, “Financial Instruments”).

For additional information about the Fund’s principal investment strategies, see “Additional Description of the Principal Strategies of the Funds.”

Principal Risks

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk and the Fund does not represent a complete investment program. As with all investments, you may lose money in the Fund. Therefore, you should consider carefully the following risks before investing in the Fund. A more complete discussion of Principal Risks is included under “Additional Description of the Principal Risks of the Funds.”

Index Risk

The Underlying Index is new, has limited historical performance data, and may not be successful in replicating the performance of its target strategies.

Tracking Error Risk

Although the Fund attempts to track the performance of its Underlying Index, the Fund may not be able to duplicate its exact composition or return for any number of reasons.

Global Resources Sector Risks

Because the Fund’s investments are concentrated in the global resources sector, the value of its shares will be affected by factors specific to that sector and may fluctuate more widely than that of a fund which invests in a broad range of industries.

Market Risk

The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably.

New Fund Risk

The Fund is a new fund. As a new fund, there can be no assurance that it will grow to or maintain an economically viable size, in which case it may experience greater tracking error to its Underlying Index than it otherwise would at higher asset levels or it could ultimately liquidate.

Trading Price Risk

Although it is expected that generally the market price of the Shares will approximate the Fund’s NAV, there may be times when the market price in the Secondary Market and the NAV vary significantly.

Foreign Securities Risk

When the Fund invests in foreign markets, it will be subject to risk of loss not typically associated with domestic markets.

Mid and Small Capitalization Companies Risk

Stocks of mid and small capitalization companies generally are more volatile, more vulnerable to adverse business and economic developments, and more thinly traded relative to those of larger companies.

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, or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Equity Securities Risk

The prices of equity securities change in response to many factors.

Foreign Securities Valuation Risk

Because foreign exchanges may be open on days when the Fund does not price its shares, the value of the securities in the Fund’s portfolio may change on days when shareholders of the Fund will not be able to purchase or sell the Fund’s shares.

Performance Information

The bar chart that follows shows the annual total returns of the Fund’s for a full calendar year. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one calendar year compared with its underlying index and additional broad measures of market performance. The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets (performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses). The Dow Jones-UBS Commodity Index is composed of futures contracts on physical commodities traded on U.S. exchanges, with the exception of aluminum, nickel and zinc, which trade on the London Metal Exchange.

The Fund’s year-to-date total return as of the June 30, 2011 was -1.43%.

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

	Return	Quarter/Year
Highest Return	13.76%	3Q/2010
Lowest Return	-5.29%	2Q/2010

All returns assume reinvestment of dividends and distributions. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Fund performance current to the most recent month-end is available by calling 1-888-934-0777 or by visiting www.indexiq.com.

Average Annual Total Returns as of December 31, 2010

Average Annual Total Returns		1 Year	Since Inception		Inception Date
IQ Global Resources ETF		23.93%	22.77%	[1]	Oct. 26, 2009
IQ Global Resources ETF After Taxes on Distributions	[2]	23.50%	22.36%	[1]
IQ Global Resources ETF After Taxes on Distributions and Sales		15.55%	19.16%	[1]
IQ Global Resources ETF IQ Global Resources Index		25.26%	24.58%	[1]
IQ Global Resources ETF MSCI World Index		12.34%	13.08%	[1]
IQ Global Resources ETF Dow Jones-UBS Commodity Index		16.67%	16.83%	[1]

[1] The Total Annual Fund Operating Expenses may not correlate to the ratio of expenses to average net assets as reported in the "Financial Highlights" section of the Prospectus, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees & Expenses. Acquired Fund Fees & Expenses represent the Fund's pro rata share of fees and expenses incurred indirectly as a result of investing in other funds, including ETFs and money market funds.

[1] The Fund commenced operations on October 26, 2009.

[2] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax- deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] Other expenses include the Fund's pro rata share of fees and expenses incurred indirectly as a result of investing in other funds, including ETFs and money market funds.

[1] The Fund commenced operations on November 16, 2009.

[2] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax- deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] Other expenses include the Fund's pro rata share of fees and expenses incurred indirectly as a result of investing in other funds, including ETFs and money market funds.

[1] The Fund commenced operations on October 26, 2009.

[2] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

XML



Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Document Type

dei_DocumentType

485BPOS

Document Period End Date

dei_DocumentPeriodEndDate

Aug. 29, 2011

Registrant Name

dei_EntityRegistrantName

IndexIQ ETF Trust

Central Index Key

dei_EntityCentralIndexKey

0001415995

Amendment Flag

dei_AmendmentFlag

false

Document Creation Date

dei_DocumentCreationDate

Aug. 29, 2011

Document Effective Date

dei_DocumentEffectiveDate

Aug. 29, 2011

Prospectus Date

rr_ProspectusDate

Aug. 29, 2011

IQ Real Return ETF

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

RISK/RETURN

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks investment results that correspond (before fees and expenses) generally to the price and yield performance of its underlying index, the IQ Real Return Index (the “Underlying Index”).

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors purchasing Shares on a national securities exchange, national securities association or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker which are not reflected in the table set forth below.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): No shareholder fees are levied by the Fund for purchases and sales made on the Secondary Market.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

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

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 52% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

52.00%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

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

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund is a “fund of funds” which means it invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index, which includes underlying funds. The Underlying Index consists of a number of components (“Underlying Index Components”) selected in accordance with the rules-based methodology of such Underlying Index, which was developed by Financial Development Holdco LLC (“IndexIQ”), the parent company of IndexIQ Advisors LLC, the Fund’s investment advisor (the “Advisor”). Such Underlying Index Components will include primarily ETFs and/or other exchange-traded vehicles issuing equity securities organized in the U.S., such as exchange traded commodity pools (“ETVs”). The Fund may also invest in one or more financial instruments, including but not limited to futures contracts and swap agreements (collectively, “Financial Instruments”).

The Fund employs a “passive management” — or indexing — investment approach designed to track the performance of the Underlying Index. The Underlying Index seeks to provide investors with a hedge against the U.S. inflation rate by providing a “real return” or a return above the rate of inflation, as represented by the CPI (the “Strategy”). The CPI, or the Consumer Price Index, which is published by the Bureau of Labor Statistics, is a measure of the average change in prices over time of goods and services purchased by households. The CPI is reported with monthly frequency, but due to seasonality and other factors the monthly change in the CPI is reported both as the 1-month change and also on a rolling 12-month basis (the “Rolling 12-month CPI Returns”). It is the Rolling 12-month CPI Returns, not the monthly returns of the CPI, that the Underlying Index incorporates into its construction process.

The Underlying Index includes exposures to asset classes whose returns incorporate inflation expectations in an attempt to achieve its investment objective. This is based on the premise that capital market returns tend to be forward looking and anticipate economic developments, including inflation expectations. Since the Underlying Index’s objective is to provide a “real return,” as described above, the index construction process involves adding a real return target over and above the CPI returns and using the resulting

“nominal returns” (i.e., inflation plus real return) to determine the weights of the Underlying Index Components.

The Underlying Index Components of this Strategy generally provide exposures to:

• U.S. large cap equity;

• U.S. small cap equity;

• Foreign equity (Europe, Australasia & Far East);

• U.S. government short-, intermediate-, and long-term maturity obligations;

• Foreign currencies and currency futures;

• U.S. real estate; and

• Commodities.

For additional information about the Fund’s principal investment strategies, see “Additional Description of the Principal Strategies of the Funds.”

Strategy Portfolio Concentration [Text]

rr_StrategyPortfolioConcentration

The Fund is a "fund of funds" which means it invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index, which includes underlying funds.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk and the Fund does not represent a complete investment program. As with all investments, you may lose money in the Fund. Therefore, you should consider carefully the following risks before investing in the Fund. A more complete discussion of Principal Risks is included under “Additional Description of the Principal Risks of the Funds.”

Fund of Funds Risk

The Fund’s investment performance, because it is a fund of funds, depends on the investment performance of the Underlying ETFs in which it invests.

Underlying Funds Risk

An investment in the Fund is subject to the risks associated with the Underlying ETFs that comprise the Fund’s Underlying Index.

Exchange Traded Vehicle Risk

The value of a Fund’s investment in ETFs, ETVs and exchange-traded notes (“ETNs”) is based on stock market prices and the Fund could lose money due to stock market developments, the failure of an active trading market to develop or exchange trading halts or de-listings.

Index Risk

The Underlying Index is new, has limited historical performance data, and may not be successful in replicating the performance of its target strategies.

Tracking Error Risk

Although the Fund attempts to track the performance of its Underlying Index, the Fund may not be able to duplicate its exact composition or return for any number of reasons.

Market Risk

The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably.

New Fund Risk

The Fund is a new fund. As a new fund, there can be no assurance that it will grow to or maintain an economically viable size, in which case it may experience greater tracking error to its Underlying Index than it otherwise would at higher asset levels or it could ultimately liquidate.

Trading Price Risk

Although it is expected that generally the market price of the Shares will approximate the Fund’s NAV, there may be times when the market price in the Secondary Market and the NAV vary significantly.

Equity Securities Risk

The Fund may have significant exposure to the equity markets through its investment in certain ETFs, which, in turn, may subject the Fund to certain risks, including price fluctuations in response to many factors.

Fixed Income Securities Risk

The Fund may have significant exposure to the fixed income markets through its investment in certain ETFs, which, in turn, may subject the Fund to certain risks, including credit risk and interest rate risk.

Risk Lose Money [Text]

rr_RiskLoseMoney

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund's Shares and the possibility of significant losses.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart that follows shows the annual total returns of the Fund’s for a full calendar year. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one calendar year compared with its underlying index and another broad measure of market performance. The Barclays Capital U.S. TIPS Index is an unmanaged index comprised of all U.S. Treasury Inflation-Protected Securities rated investment grade (Baa3 or better), have at least one year to final maturity, and at least $250 million par amount outstanding. The Barclays Capital U.S. Short Treasury Bond Index measures the performance of public obligations of the U.S. Treasury that have a remaining maturity of between 1 and 12 months.

All returns assume reinvestment of dividends and distributions. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Fund performance current to the most recent month-end is available by calling 1-888-934-0777 or by visiting www.indexiq.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund's performance from year to year and by showing how the Fund's average annual returns for one calendar year compared with its underlying index and another broad measure of market performance.

Performance Additional Market Index [Text]

rr_PerformanceAdditionalMarketIndex

The Barclays Capital U.S. TIPS Index is an unmanaged index comprised of all U.S. Treasury Inflation-Protected Securities rated investment grade (Baa3 or better), have at least one year to final maturity, and at least $250 million par amount outstanding. The Barclays Capital U.S. Short Treasury Bond Index measures the performance of public obligations of the U.S. Treasury that have a remaining maturity of between 1 and 12 months.

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-888-934-0777

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.indexiq.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

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

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The Fund’s year-to-date total return as of the June 30, 2011 was -0.63%.

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

	Return	Quarter/Year
Highest Return	0.72%	2Q/2010
Lowest Return	-0.08%	1Q/2010

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund's year-to-date total return as of the June 30, 2011 was -0.63%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2011

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(0.63%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2010

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.72%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 30, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(0.08%)

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns as of December 31, 2010

IQ Real Return ETF | IQ Real Return ETF

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.48%

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

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.01%

Acquired Fund Fees & Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.66%

^[1]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

67

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

211

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

368

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

822

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

67

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

211

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

368

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

822

Annual Return 2010

rr_AnnualReturn2010

1.77%

1 Year

rr_AverageAnnualReturnYear01

1.77%

Since Inception

rr_AverageAnnualReturnSinceInception

1.57%

^[2]

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 26, 2009

IQ Real Return ETF | IQ Real Return ETF | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

1.77%

^[3]

Since Inception

rr_AverageAnnualReturnSinceInception

1.56%

^[2],[3]

IQ Real Return ETF | IQ Real Return ETF | After Taxes on Distributions and Sales

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

1.15%

Since Inception

rr_AverageAnnualReturnSinceInception

1.33%

^[2]

IQ Real Return ETF | IQ Real Return Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

2.39%

Since Inception

rr_AverageAnnualReturnSinceInception

2.57%

^[2]

IQ Real Return ETF | Barclays Capital U.S. TIPS Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

6.30%

Since Inception

rr_AverageAnnualReturnSinceInception

6.90%

^[2]

IQ Real Return ETF | Barclays Capital U.S. Short Treasury Bond Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.29%

Since Inception

rr_AverageAnnualReturnSinceInception

0.31%

^[2]

IQ Merger Arbitrage ETF

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

RISK/RETURN

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks investment results that correspond (before fees and expenses) generally to the price and yield performance of its underlying index, the IQ Merger Arbitrage Index (the “Underlying Index”).

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors purchasing Shares on a national securities exchange, national securities association or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker which are not reflected in the table set forth below.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): No shareholder fees are levied by the Fund for purchases and sales made on the Secondary Market.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

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

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 365% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

365.00%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

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

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund employs a “passive management” — or indexing — investment approach designed to track the performance of the Underlying Index, which was developed by Financial Development Holdco LLC (“IndexIQ”), the parent company of IndexIQ Advisors LLC, the Fund’s investment advisor (the “Advisor”). The Underlying Index seeks to employ a systematic investment process designed to identify opportunities in companies whose equity securities trade in developed markets, including the U.S., and which are involved in announced mergers, acquisitions and other buyout-related transactions. The Underlying Index seeks to capitalize on the spread between the current market price of the target company’s stock and the price received by the holder of that stock upon consummation of the buyout-related transaction. In addition, the Underlying Index includes short exposure to the U.S. and non-U.S. equity markets.

The Fund invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index. The Underlying Index consists of a number of Underlying Index Components selected in accordance with IndexIQ’s rules-based methodology. Such Underlying Index Components will include primarily U.S. and non-U.S. equity securities. In addition, the Fund may invest up to 20% of its net assets in investments not included in its Underlying Index, but which the Advisor believes will help the Fund track its Underlying Index. The Fund may also invest in one or more financial instruments, including but not limited to futures contracts and swap agreements (collectively, “Financial Instruments”).

Pursuant to the Underlying Index’s rules, to the extent there are an insufficient number of target companies in which to invest, insufficient liquidity exists in such companies, or target companies are removed from the Underlying Index between monthly reconstitutions, the Underlying Index will allocate the available cash to one or more short-term fixed income ETFs. In seeking to track the Underlying Index, the Funds may invest, with approximately the same allocation proportions as the Underlying Index, in short-term fixed income ETFs, money market instruments, high quality short-term debt securities, or derivative securities thereon. To the extent the Fund invests in cash and cash equivalents, the Fund will not be pursuing a merger arbitrage strategy.

For additional information about the Fund’s principal investment strategies, see “Additional Description of the Principal Strategies of the Funds.”

Strategy Portfolio Concentration [Text]

rr_StrategyPortfolioConcentration

The Fund invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk and the Fund does not represent a complete investment program. As with all investments, you may lose money in the Fund. Therefore, you should consider carefully the following risks before investing in the Fund. A more complete discussion of Principal Risks is included under “Additional Description of the Principal Risks of the Funds.”

Index Risk

The Underlying Index is new, has limited historical performance data, and may not be successful in replicating the performance of its target strategies.

Tracking Error Risk

Although the Fund attempts to track the performance of its Underlying Index, the Fund may not be able to duplicate its exact composition or return for any number of reasons.

Merger Arbitrage Risks

The principal risk associated with the Fund’s investments is that certain of the proposed takeover transactions in which the Fund invests may be renegotiated, terminated or involve a longer time frame than originally contemplated for business reasons or due to regulatory oversight or for other reasons, in each case which may negatively impact the Fund’s returns.

High Portfolio Turnover Risk

The Fund’s investment strategy is likely to result in high portfolio turnover, which, in turn, may result in increased transaction costs to the Fund and lower total returns.

Non-Diversified Risk

The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 (the “1940 Act”) and is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest larger proportions of its assets in a single industry within the industries that comprise the Underlying Index.

Investment in Foreign Merger Transactions Risk

Investments in foreign companies involved in pending mergers, takeovers and other corporate reorganizations may entail political, cultural, regulatory, legal and tax risks different from those associated with comparable transactions in the U.S.

Market Risk

The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably.

New Fund Risk

The Fund is a new fund. As a new fund, there can be no assurance that it will grow to or maintain an economically viable size, in which case it may experience greater tracking error to its Underlying Index than it otherwise would at higher asset levels or it could ultimately liquidate.

Trading Price Risk

Although it is expected that generally the market price of the Shares will approximate the Fund’s NAV, there may be times when the market price in the Secondary Market and the NAV vary significantly.

Foreign Securities Risk

When the Fund invests in foreign markets, it will be subject to risk of loss not typically associated with domestic markets.

Mid and Small Capitalization Companies Risk

Stocks of mid and small capitalization companies generally are more volatile, more vulnerable to adverse business and economic developments, and more thinly traded relative to those of larger companies.

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, or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Equity Securities Risk

The prices of equity securities change in response to many factors.

Foreign Securities Valuation Risk

Because foreign exchanges may be open on days when the Fund does not price its shares, the value of the securities in the Fund’s portfolio may change on days when shareholders of the Fund will not be able to purchase or sell the Fund’s shares.

Risk Lose Money [Text]

rr_RiskLoseMoney

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund's Shares and the possibility of significant losses.

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

The Fund is classified as a "non-diversified" investment company under the Investment Company Act of 1940 (the "1940 Act") and is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest larger proportions of its assets in a single industry within the industries that comprise the Underlying Index.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart that follows shows the annual total returns of the Fund’s for a full calendar year. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one calendar year compared with its underlying index and additional broad measures of market performance. The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets (performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses). The S&P 500^® Index is a broad-based unmanaged index of 500 stocks, which is designed to represent the equity market in general performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses).

All returns assume reinvestment of dividends and distributions. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Fund performance current to the most recent month-end is available by calling 1-888-934-0777 or by visiting www.indexiq.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund's performance from year to year and by showing how the Fund's average annual returns for one calendar year compared with its underlying index and additional broad measures of market performance.

Performance Additional Market Index [Text]

rr_PerformanceAdditionalMarketIndex

The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets (performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses). The S&P 500 Index is a broad-based unmanaged index of 500 stocks, which is designed to represent the equity market in general performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses).

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-888-934-0777

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.indexiq.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

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

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The Fund’s year-to-date total return as of the June 30, 2011 was 0.96%.

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

	Return	Quarter/Year
Highest Return	2.75%	3Q/2010
Lowest Return	-3.24%	2Q/2010

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund's year-to-date total return as of the June 30, 2011 was 0.96%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2011

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.96%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2010

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

2.75%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(3.24%)

Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns as of December 31, 2010

IQ Merger Arbitrage ETF | IQ Merger Arbitrage ETF

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.75%

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

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.01%

^[4]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.76%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

78

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

243

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

422

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

942

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

78

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

243

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

422

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

942

Annual Return 2010

rr_AnnualReturn2010

(0.36%)

1 Year

rr_AverageAnnualReturnYear01

(0.36%)

Since Inception

rr_AverageAnnualReturnSinceInception

0.78%

^[5]

Inception Date

rr_AverageAnnualReturnInceptionDate

Nov. 16, 2009

IQ Merger Arbitrage ETF | IQ Merger Arbitrage ETF | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(0.81%)

^[3]

Since Inception

rr_AverageAnnualReturnSinceInception

0.37%

^[3],[5]

IQ Merger Arbitrage ETF | IQ Merger Arbitrage ETF | After Taxes on Distributions and Sales

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(0.23%)

Since Inception

rr_AverageAnnualReturnSinceInception

0.43%

^[5]

IQ Merger Arbitrage ETF | IQ Merger Arbitrage Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.98%

Since Inception

rr_AverageAnnualReturnSinceInception

2.08%

^[5]

IQ Merger Arbitrage ETF | MSCI World Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

12.34%

Since Inception

rr_AverageAnnualReturnSinceInception

10.55%

^[5]

IQ Merger Arbitrage ETF | S&P 500® Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

15.06%

Since Inception

rr_AverageAnnualReturnSinceInception

14.09%

^[5]

IQ Global Resources ETF

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

RISK/RETURN

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks investment results that correspond (before fees and expenses) generally to the price and yield performance of its underlying index, the IQ Global Resources Index (the “Underlying Index”).

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors purchasing Shares on a national securities exchange, national securities association or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker which are not reflected in the table set forth below.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment): No shareholder fees are levied by the Fund for purchases and sales made on the Secondary Market.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

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

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 117% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

117.00%

Expense Example [Heading]

rr_ExpenseExampleHeading

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

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund employs a “passive management” — or indexing — investment approach designed to track the performance of the Underlying Index, which was developed by Financial Development Holdco LLC (“IndexIQ”), the parent company of IndexIQ Advisors LLC, the Fund’s investment advisor (the “Advisor”). The Underlying Index seeks to employ a systematic investment process designed to identify opportunities in markets exhibiting trending or momentum characteristics across commodity asset classes, represented by companies that operate in commodity-specific market segments and whose equity securities trade in developed markets, including the U.S. These segments include Livestock; Precious Metals; Grains, Food and Fiber; Energy; Metals; Timber; Coal; and Water. In addition, the Underlying Index includes short exposure to the U.S. and non-U.S. equity markets.

The Fund invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index. The Underlying Index consists of a number of Underlying Index Components selected in accordance with IndexIQ’s rules-based methodology. Such Underlying Index Components will include primarily U.S. and non-U.S. equity securities. In addition, the Fund may invest up to 20% of its net assets in investments not included in its Underlying Index, but which the Advisor believes will help the Fund track its Underlying Index. The Fund may also invest in one or more financial instruments, including but not limited to futures contracts and swap agreements (collectively, “Financial Instruments”).

For additional information about the Fund’s principal investment strategies, see “Additional Description of the Principal Strategies of the Funds.”

Strategy Portfolio Concentration [Text]

rr_StrategyPortfolioConcentration

The Fund invests, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the investments included in its Underlying Index.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk and the Fund does not represent a complete investment program. As with all investments, you may lose money in the Fund. Therefore, you should consider carefully the following risks before investing in the Fund. A more complete discussion of Principal Risks is included under “Additional Description of the Principal Risks of the Funds.”

Index Risk

The Underlying Index is new, has limited historical performance data, and may not be successful in replicating the performance of its target strategies.

Tracking Error Risk

Although the Fund attempts to track the performance of its Underlying Index, the Fund may not be able to duplicate its exact composition or return for any number of reasons.

Global Resources Sector Risks

Because the Fund’s investments are concentrated in the global resources sector, the value of its shares will be affected by factors specific to that sector and may fluctuate more widely than that of a fund which invests in a broad range of industries.

Market Risk

The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably.

New Fund Risk

The Fund is a new fund. As a new fund, there can be no assurance that it will grow to or maintain an economically viable size, in which case it may experience greater tracking error to its Underlying Index than it otherwise would at higher asset levels or it could ultimately liquidate.

Trading Price Risk

Although it is expected that generally the market price of the Shares will approximate the Fund’s NAV, there may be times when the market price in the Secondary Market and the NAV vary significantly.

Foreign Securities Risk

When the Fund invests in foreign markets, it will be subject to risk of loss not typically associated with domestic markets.

Mid and Small Capitalization Companies Risk

Stocks of mid and small capitalization companies generally are more volatile, more vulnerable to adverse business and economic developments, and more thinly traded relative to those of larger companies.

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, or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Equity Securities Risk

The prices of equity securities change in response to many factors.

Foreign Securities Valuation Risk

Because foreign exchanges may be open on days when the Fund does not price its shares, the value of the securities in the Fund’s portfolio may change on days when shareholders of the Fund will not be able to purchase or sell the Fund’s shares.

Risk Lose Money [Text]

rr_RiskLoseMoney

Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund's Shares and the possibility of significant losses.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance Information

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart that follows shows the annual total returns of the Fund’s for a full calendar year. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one calendar year compared with its underlying index and additional broad measures of market performance. The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets (performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses). The Dow Jones-UBS Commodity Index is composed of futures contracts on physical commodities traded on U.S. exchanges, with the exception of aluminum, nickel and zinc, which trade on the London Metal Exchange.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund's performance from year to year and by showing how the Fund's average annual returns for one calendar year compared with its underlying index and additional broad measures of market performance.

Performance Additional Market Index [Text]

rr_PerformanceAdditionalMarketIndex

The MSCI World Index is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets (performance data assumes reinvestment of dividends, but it does not reflect management fees, transaction costs or other expenses). The Dow Jones-UBS Commodity Index is composed of futures contracts on physical commodities traded on U.S. exchanges, with the exception of aluminum, nickel and zinc, which trade on the London Metal Exchange.

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-888-934-0777

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.indexiq.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

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

Bar Chart [Heading]

rr_BarChartHeading

All returns assume reinvestment of dividends and distributions. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Fund performance current to the most recent month-end is available by calling 1-888-934-0777 or by visiting www.indexiq.com.

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The Fund’s year-to-date total return as of the June 30, 2011 was -1.43%.

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

	Return	Quarter/Year
Highest Return	13.76%	3Q/2010
Lowest Return	-5.29%	2Q/2010

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund's year-to-date total return as of the June 30, 2011 was -1.43%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2011

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(1.43%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2010

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

13.76%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.29%)

Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns as of December 31, 2010

IQ Global Resources ETF | IQ Global Resources ETF

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.75%

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

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.01%

^[4]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.76%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

78

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

243

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

422

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

942

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

78

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

243

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

422

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

942

Annual Return 2010

rr_AnnualReturn2010

23.93%

1 Year

rr_AverageAnnualReturnYear01

23.93%

Since Inception

rr_AverageAnnualReturnSinceInception

22.77%

^[2]

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 26, 2009

IQ Global Resources ETF | IQ Global Resources ETF | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

23.50%

^[6]

Since Inception

rr_AverageAnnualReturnSinceInception

22.36%

^[2],[6]

IQ Global Resources ETF | IQ Global Resources ETF | After Taxes on Distributions and Sales

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

15.55%

Since Inception

rr_AverageAnnualReturnSinceInception

19.16%

^[2]

IQ Global Resources ETF | IQ Global Resources Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

25.26%

Since Inception

rr_AverageAnnualReturnSinceInception

24.58%

^[2]

IQ Global Resources ETF | MSCI World Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

12.34%

Since Inception

rr_AverageAnnualReturnSinceInception

13.08%

^[2]

IQ Global Resources ETF | Dow Jones-UBS Commodity Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

16.67%

Since Inception

rr_AverageAnnualReturnSinceInception

16.83%

^[2]

[1] The Total Annual Fund Operating Expenses may not correlate to the ratio of expenses to average net assets as reported in the "Financial Highlights" section of the Prospectus, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees & Expenses. Acquired Fund Fees & Expenses represent the Fund's pro rata share of fees and expenses incurred indirectly as a result of investing in other funds, including ETFs and money market funds.

[2] The Fund commenced operations on October 26, 2009.

[3] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax- deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

[4] Other expenses include the Fund's pro rata share of fees and expenses incurred indirectly as a result of investing in other funds, including ETFs and money market funds.

[5] The Fund commenced operations on November 16, 2009.

[6] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.