The RiverNorth/DoubleLine Strategic Opportunity Fund, Inc. functions as a closed-end mutual fund primarily dedicated to investments in fixed income markets. RiverNorth Capital Management, LLC originally launched and provides primary oversight for the fund, with DoubleLine Capital LP acting as a co-manager. Established in the United States on December 30, 2010, the fund's objective is to benchmark its portfolio's performance against the Barclays Capital U.S. Aggregate Bond Index.