Form 497J IndexIQ ETF Trust

51 Madison Avenue

New York, New York 10010

October 6, 2022

VIA EDGAR

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Dear Sir/Madam:

On behalf of IndexIQ ETF Trust (the “Registrant”), in accordance with the provisions of Rule 497(j) of Regulation C under the Securities Act of 1933 (the “Securities Act”), this letter serves to certify that the most recent amendment to the Registration Statement on Form N-1A (the “Registration Statement”) of the Registrant for IQ Candriam ESG U.S. Mid Cap Equity ETF, a series of the Registrant, does not differ from that which would have been filed pursuant to Rule 497(c) of the Securities Act. Post-Effective Amendment No. 222 was filed electronically with the Securities and Exchange Commission on October 5, 2022.

Please do not hesitate to contact Matthew V. Curtin at (212) 576-7634 if you have any questions regarding this filing.

Barry Pershkow, Chapman and Cutler LLP

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