FOF - FOF: Good CEF Fund Of Funds But Not A Buy At These Levels September, 12 2021 09:01 AM Cohen & Steers Closed-End Opportunity Fund Inc. Several readers and subscribers asked for my thoughts on FOF. FOF is an actively-managed CEF fund of funds, investing in a wide variety of CEFs. An overview of the fund follows. For further details see: FOF: Good CEF Fund Of Funds, But Not A Buy At These Levels