Source: Board of Governors of the Federal Reserve System (US)  

Release: H.6 Money Stock Measures  

Units:  Billions of Dollars, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

The retail money funds component of M2 is constructed from weekly data collected by the Investment Company Institute (ICI), a trade association for the investment company industry. The retail money funds component of M2 excludes IRA and Keogh balances held at MMMFs, which are reported by ICI on a quarterly basis.