- Certification of no change in definitive materials. (497J)

[OOK, INC. LETTERHEAD]

May 4, 2010

VIA EDGAR

Christian T. Sandoe, Senior Counsel

Securities and Exchange Commission

Division of Investment Management

100 F Street, NE

Washington, D.C. 20549

Re: OOK, INC. (File Nos. 333-149507; 811-22189)

Dear Mr. Sandoe:

On behalf of OOK, Inc. (the “Fund”), I am filing this certification pursuant to paragraph (j) of Rule 497 under the Securities Act of 1933. In this regard, I certify that the form of Prospectus and Statement of Additional Information (“SAI”) relating to the Fund’s shares otherwise required to be filed under paragraph (c) of Rule 497 do not differ from the form of Prospectus and SAI contained in the 485(b) post-effective amendment to registration statement on Form N-1A for the Fund, which was filed electronically with the Securities and Exchange Commission via EDGAR on April 30, 2010.