Flaherty & Crumrine Preferred Income Opportunity Fund Inc. declared dividend of $0.066 per share for the month of February, $0.066 per share for the month of March and $0.066 per share for the month of April 2018. The dividend will be payable on Feb. 28, 2018, Mar. 29, 2018 and Apr. 30, 2018 to the holders of record on Feb. 21, 2018, Mar. 22, 2018 and Apr. 23, 2018 and the ex-dividend date is Feb. 20, 2018, Mar. 21, 2018 and Apr. 20, 2018.