Money Market Fund
Money market funds are a type of mutual fund that invest in liquid, short-term debt securities, cash and cash equivalents. Money market funds have relatively low risks compared to other mutual funds and most other investments, but historically have had lower returns. Money market funds pay dividends that generally reflect short-term interest rates. Many investors use money market funds to store cash or as an alternative to bank savings vehicles.
Yield
The annual percentage rate of return earned on a bond calculated by dividing the coupon interest rate by its purchase price.