The meaning and definition of Money Market Fund -
A fund that seeks to provide higher degree of relative safety as well as some current income while generally striving to maintain a constant net asset value of $1 per share. Money market funds invest in short-term (less than thirteen months), highly liquid debt securities including certificates of deposits, U.S. Treasury bills, and commercial paper. An investment in a money market fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although money market funds generally seek to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in a money market fund.