AllianceBernstein Income Fund is a closed-ended fixed income mutual fund launched and managed by AllianceBernstein L.P. It invests in the fixed income markets of the United States. The fund primarily invests in investment grade fixed income securities issued or guaranteed by the U.S. Government, its agencies or instrumentalities, and repurchase agreements pertaining to U.S. Government securities. It employs both quantitative and fundamental analysis to create its portfolio. The fund benchmarks the performance of its portfolio against the Barclays U.S. Aggregate Bond Index. It was previously known as ACM Income Fund, Inc. AllianceBernstein Income Fund was formed on August 28, 1987 and is domiciled in the United States.