Roundhill ETF Trust

01/09/2026 | Press release | Distributed by Public on 01/09/2026 10:10

Prospectus Certification by Investment Company (Form 497J)

Richard J. Coyle
Partner
Chapman and Cutler LLP
320 South Canal Street
Chicago, Illinois 60606

T 312.845.3724
[email protected]

January 9, 2026

U.S. Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, D.C. 20549

Re: Roundhill ETF Trust

(Registration Nos. 333-273052; 811-23887)

Ladies and Gentlemen:

On behalf of Roundhill 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 recent amendment to the Registration Statement on Form N-1A (the "Registration Statement") for the Registrant for Roundhill Robotaxi, Autonomous Vehicles & Technology ETF (previously, Roundhill Artificial Intelligence 3 ETF) and Roundhill Space & Technology ETF (previously, Roundhill Space ETF), each 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. 212 was filed electronically with the Securities and Exchange Commission on January 8, 2026.

If we may cooperate with you in any way in the processing of this registration statement, please telephone the undersigned at (312) 845-3724.

Very truly yours,
Chapman and Cutler llp
By: /s/ Richard Coyle
Richard Coyle
Cc: Sean Snider, Esq., Chapman and Cutler LLP

Enclosures

Roundhill ETF Trust published this content on January 09, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on January 09, 2026 at 16:10 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]