First Trust Senior Floating Rate Income Fund II is a closed-ended fixed income mutual fund launched and managed by First Trust Advisors L.P. The fund invests in the fixed income markets of the United States. It seeks to invest in a portfolio of senior secured floating rate corporate loans. The fund benchmarks the performance of its portfolio against the S&P/LSTA Leveraged Loan Index. It was formerly known as First Trust/Four Corners Senior Floating Rate Income Fund II. First Trust Senior Floating Rate Income Fund II was formed on May 25, 2004 and is domiciled in the United States.