FinanceFEATURE

M1 vs. M2: How the Federal Reserve Measures the U.S. Money Supply

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EffectStory 編輯部Editorial Team
Published · Updated
The Federal Reserve defines M1 as the most liquid money supply and M2 as a broader tier that adds small time deposits and retail money market funds. In July 2026, M2 reached $23.2 trillion, versus M1's $19.9 trillion.

What Is M1? The Most Liquid Form of Money

M1 consists of the most liquid forms of money — currency, demand deposits, and other liquid deposits, the Federal Reserve statesCITE:E2. The European Central Bank applies a similar concept in its own statistics: it defines M1, or narrow money, as the most liquid measure of money, comprising currency in circulation (banknotes and coins) and overnight depositsCITE:E7. Both central banks therefore build their narrowest money measure around cash and instantly accessible deposit balances.

What Is M2? A Broader Measure of Money

M2 equals M1 plus small-denomination time deposits and retail money market fund balances, the Federal Reserve statesCITE:E3. Specifically, the Fed's definition adds (1) time deposits in amounts of less than $100,000 and (2) balances in retail money market funds (MMFs), while subtracting individual retirement account (IRA) and Keogh account balances held at depository institutions and MMFsCITE:E3. This definition was current as of the Fed's August 25, 2026 releaseCITE:E3.

How Do M1 and M2 Relate to Each Other?

M1 sits entirely within M2, with the two aggregates forming progressively more inclusive measures of money, the Federal Reserve statesCITE:E4. In other words, M2 is not a separate pool of money — it is M1 plus the additional deposit and fund categories described aboveCITE:E4CITE:E3.

How Large Are M1 and M2 in the U.S. Economy? (July 2026)

Seasonally adjusted M2 stood at $23,218.0 billion (about $23.2 trillion) in July 2026, while M1 stood at $19,886.4 billion (about $19.9 trillion) over the same periodCITE:E5CITE:E6. The gap between the two aggregates was $3,331.6 billion, consistent with M2 layering small time deposits and retail money market funds on top of M1CITE:E5CITE:E6CITE:E3.

AggregateJuly 2026 (seasonally adjusted)Source
M1$19,886.4 billion (~$19.9 trillion)Federal ReserveCITE:E6
M2$23,218.0 billion (~$23.2 trillion)FRED, Federal Reserve Bank of St. LouisCITE:E5
M2 minus M1$3,331.6 billionDerived from Fed and FRED figures aboveCITE:E5CITE:E6

How Is the U.S. Money Supply Measured and Reported?

The Federal Reserve publishes the H.6 statistical release every month, providing measures of the monetary aggregates M1 and M2 along with their components, the Federal Reserve statesCITE:E1. This monthly cadence is the mechanism by which the figures cited above — including the July 2026 M1 and M2 levels — are produced and updatedCITE:E1CITE:E6.

What This Means

Because M1 is fully contained within M2CITE:E4, the $3,331.6 billion difference recorded in July 2026 reflects exactly the categories M2 adds on top of M1: small-denomination time deposits and retail money market fund balances, net of IRA and Keogh holdingsCITE:E3CITE:E5CITE:E6. The Federal Reserve's and European Central Bank's parallel narrow-money definitionsCITE:E2CITE:E7 show that building a broader aggregate from a liquid core is a shared statistical approach, though the quantitative comparison in this article covers only the U.S. figures published through the Fed's monthly H.6 releaseCITE:E1.

📊 Evidence

FAQ

What Is M1? The Most Liquid Form of Money

M1 consists of the most liquid forms of money — currency, demand deposits, and other liquid deposits, the Federal Reserve statesCITE:E2.

What Is M2? A Broader Measure of Money

M2 equals M1 plus small-denomination time deposits and retail money market fund balances, the Federal Reserve statesCITE:E3.

How Do M1 and M2 Relate to Each Other?

M1 sits entirely within M2, with the two aggregates forming progressively more inclusive measures of money, the Federal Reserve statesCITE:E4.

How Large Are M1 and M2 in the U.S. Economy? (July 2026)

Seasonally adjusted M2 stood at $23,218.0 billion (about $23.2 trillion) in July 2026, while M1 stood at $19,886.4 billion (about $19.

📎 Sources

  1. federalreserve.gov
  2. federalreserve.gov
  3. fred.stlouisfed.org
  4. ecb.europa.eu

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EffectStory 編輯部Editorial Team

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