| Topic - Money-Market Funds | Education Center |
The reason money funds are so stable is because they invest in ultra short-term securities like those issued by banks, the federal government or big companies with Grade A credit ratings. Your return comes in the form of a dividend. In these respects, money-market funds are very similar to a bank certificate of deposit. The advantage of a money fund is that it is completely liquid. Unlike a CD, which will lock up your money for at least six months, you can sell your shares in a money fund at any time. They also often offer perks like the ability to write checks against the principal. The advantage of a CD is that your deposit is usually insured by the federal government.
There are various types of money-market funds based on the type of securities they buy, but the most important distinction is whether your dividends are taxable or tax-free.