The RiverNorth/DoubleLine Strategic Opportunity Fund, Inc. functions as a closed-end mutual fund, concentrating its investments within the fixed income sector. It was launched and is primarily overseen by RiverNorth Capital Management, LLC, with DoubleLine Capital LP also providing co-management services. Established in the United States on December 30, 2010, this fund aims to measure its portfolio's performance against the Barclays Capital U.S. Aggregate Bond Index.