October 27, 2026
VIA EDGAR TRANSMISSION
U.S. Securities and Exchange Commission
Division of Investment Management
100 F Street, NE
Washington, DC 20549
| Re: | Themes ETF Trust (the “Trust”) File Nos.: 333-271700 and 811-23872 Leverage Shares 2X Long Anthropic Daily ETF Leverage Shares 2X Short Anthropic Daily ETF (collectively, the “Funds”) |
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, and the regulations thereunder, the Trust on behalf of the Funds hereby certifies that the form of Prospectus and Statement of Additional Information that would have been filed under Rule 497(b) or (c) would not have differed from those contained in Post- Effective Amendment No. 570 to the Trust’s Registration Statement on Form N-1A, filed on October 27, 2026.
If you have any questions or require further information, please contact Karen Aspinall at (949) 629-3928 or Karen.Aspinall@Practus.com.
Sincerely,
| /s/ Karen Aspinall | |
| Karen Aspinall |
KAREN A. ASPINALL ● PARTNER
11300 Tomahawk Creek Pkwy ● Ste. 310 ● Leawood, KS 66211 ● p: 949.629.3928
Practus, LLP ● Karen.Aspinall@Practus.com ● Practus.com