Certification of No Change in Definitive Materials. (497j)

Tidal ETF Trust

898 North Broadway, Suite 2

Massapequa, New York 11758

March 31, 2020

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, DC 20549

Re:	Tidal ETF Trust (the “Trust”)

File Nos. 333-227298, 811-23377

                

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 its series, Aware Ultra-short Duration Enhanced Income 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 March 31, 2020, and filed electronically as Post-Effective Amendment No. 18 to the Trust’s Registration Statement on Form N‑1A on March 27, 2020.

If you have any questions or require further information, please contact Kent Barnes at 414-765-6511 or [e-mail].

Sincerely,

/s/ Kent Barnes

Kent Barnes

Vice President

U.S. Bancorp Fund Services, LLC

As Sub-Administrator to the Tidal ETF Trust