Nuveen Floating Rate Income Opportunity Fund (the Fund) is a closed-ended fund. The Fund provides potential for high monthly income, adjustable dividends that can act as a possible hedge against rising short-term interest rates and diversification for overall income portfolio. The Fund's investment objective is to achieve a high level of current income. The Fund invests at least 80% of its managed assets in adjustable rate loans, primarily secured senior loans. As part of the 80% requirement, the Fund also may invest in unsecured senior loans and secured and unsecured subordinated loans. The Fund invests at least 65% of its managed assets in adjustable rate senior loans that are secured by specific collateral. The Fund's investment advisor is Symphony Asset Management LLC.