The Lord Abbett Short Duration High Yield Fund Class F (LSYFX) is a mutual fund that focuses on investing in high-yield, short-term fixed income securities. This fund aims to provide investors with a balance of income and capital appreciation by investing in a diversified portfolio of high-yield bonds with shorter maturities. With a focus on shorter-term investments, this fund may offer lower interest rate risk and potentially higher returns compared to longer-term bond funds. The Class F shares of this fund may also have lower fees and expenses, making it an attractive option for investors seeking high-yield fixed income investments.