Source: International Monetary Fund
Release: International Financial Statistics
M2 comprises M1 plus (1) savings deposits (including money market deposit accounts); (2) small-denomination time deposits (time deposits in amounts of less than $100,000), less IRA and Keogh balances at other depository corporations; and (3) balances in retail money market mutual funds, less IRA and Keogh balances at money market mutual funds. Seasonally adjusted M2 is constructed by summing savings deposits, small-denomination time deposits, and retail money funds, each seasonally adjusted separately, and adding this result to seasonally adjusted M1.
International Monetary Fund, M2 for United States [MYAGM2USM052S], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/MYAGM2USM052S, March 21, 2018.