SEC Filing Summary

This filing is an SEC Form 3, which reports initial beneficial ownership of securities. It was filed on August 10, 2026, for the reporting period of December 9, 2025. The reporting owner is FRANK STEVEN, with reporting owner ID CIK 0001477140. Frank Steven is an officer of the issuer, holding the title of Treasurer. The issuer is Cohen & Steers Closed-End Opportunity Fund, Inc. (FOF). The filing indicates that the reporting owner owns no securities, as specified by "noSecuritiesOwned": "1".