Post-Effective Amendment to Post-Effective Amendment by Investment Company (Form 485BXT)

As filed with the Securities and Exchange Commission on December 16, 2025

Securities Act Registration No. 333-234544

Investment Company Act Registration No. 811-23439

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

It is proposed that this filing will become effective:

If appropriate, check the following box:

This filing relates solely to the following funds, each a series of ETF Opportunities Trust:

This Post-Effective Amendment to the Registration Statement on Form N-1A is filed pursuant to Rule 485(b)(1)(iii) for the sole purpose of designating January 15, 2026 as the new effective date for Post-Effective Amendment No. 408 to the Registration Statement filed on October 3, 2025 for the following funds:

This Post-Effective Amendment incorporates by reference the Prospectus, Statement of Additional Information, and Part C contained in Post-Effective Amendment No. 408 to the Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended (the "Securities Act"), and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this registration statement under Rule 485(b) of the Securities Act and has duly caused this Post-Effective Amendment No. 508 to the Registrant's Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Richmond, Commonwealth of Virginia on the 16th day of December, 2025.

ETF OPPORTUNITIES TRUST

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 508 to the Registration Statement on Form N-1A has been signed below by the following persons in the capacities and on the dates indicated.

*Attorney-in-fact pursuant to Powers of Attorney