Tidal Trust II

234 West Florida Street, Suite 700

Milwaukee, Wisconsin 53204

July 14, 2026

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission (the “Commission”)

Division of Investment Management

100 F Street, N.E.

Washington, DC 20549

To the Commission:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, and the regulations thereunder, the Trust on behalf of its series, the Defiance 2X Daily Target Short Pure Space Index ETF and Defiance 2X Daily Target Short Taiwan ETF, hereby certifies that the forms of Prospectus and Statement of Additional Information that would have been filed under Rule 497(b) or (c) would not have differed from that contained in the most recent amendment effective July 9, 2026, and filed electronically as Post-Effective Amendment No. 675 to the Trust’s Registration Statement on Form N-1A on July 9, 2026.

If you have any questions or require further information, please contact David Mathews at (262) 240-4657 or dmathews@tidalfg.com.