The primary purpose of a money market fund is to provide investors a safe medium through which they can invest in easily accessible, secure, and highly liquid cash-equivalent debt-based assets using smaller investment amounts. It is a type of mutual fund characterized as a low-risk, low-return investment. Owing to the returns, investors may prefer parking substantial amounts of cash in such funds for the short term. However, money market funds are not suitable for long term investment goals, like retirement planning, as they don’t offer much capital appreciation.
The Money Market enables the commercial banks to use their excess reserves in profitable investment. The main objective of the commercial banks is to earn income from its reserves as well as maintain liquidity to meet the uncertain cash demand of the depositors. In the money market, the excess reserves of the commercial banks are invested in near-money assets (e.g., short-term bills of exchange), which are easily converted into cash. Thus, commercial banks earn profits without sacrificing liquidity.