BlackRock Limited Duration Income Trust is a fixed income mutual fund managed by BlackRock Advisors, LLC that invests in fixed income securities of the United States across various sectors. It primarily focuses on investment grade corporate bonds, mortgage-related securities, asset-backed securities, US Government and agency securities, and senior, secured floating rate loans with an average portfolio duration of less than five years. The fund was formed on July 31, 2003 and benchmarks its performance against the Lehman Brothers U.S. Aggregate Index.