First Trust High Income Long/Short Fund is a closed-ended fixed-income mutual fund launched and managed by First Trust Advisors, L.P. It is co-managed by MacKay Shields LLC. The fund invests in fixed-income markets across the globe. It primarily invests in high-yield corporate fixed-income securities of varying maturities that are rated below-investment grade, including corporate bonds, debentures, notes, and commercial papers. The fund employs fundamental analysis and a long/short strategy, with a focus on such factors as type, size, and cost of a security, financial statements of the issuer, credit quality and cash flow of the issuer, and evaluation of the forces which influence the market to create its portfolio. It benchmarks the performance of its portfolio against the Bank of America Merill Lynch U.S. High Yield Master II Constrained Index. First Trust High Income Long/Short Fund was formed on June 18, 2010 and is domiciled in the United States.