Crypto glossary

Global liquidity (M2)

Definition

Global liquidity is the total money and credit available across major economies, often tracked through M2 money supply, which bitcoin traders watch as a driver.

M2 is a measure of money supply that includes cash, checking accounts, savings deposits and similar near-money. Analysts build a global M2 figure by converting the M2 of the US, the euro area, China, Japan and other large economies into dollars and adding them up. Broader liquidity measures also include central bank balance sheets and credit conditions.

The idea behind tracking it is simple: when more money is circulating and credit is easy, some of it flows into scarce, speculative assets. Charts comparing global M2 with bitcoin's price, often with a lag of several weeks, are widely shared, and several research firms argue that liquidity explains much of bitcoin's cycles, more than the halving does.

The relationship is loose. Because global M2 is converted to dollars, a weaker dollar mechanically lifts it, mixing two effects. Lag choices are often fitted after the fact, and periods where bitcoin and liquidity diverge are common. It is a macro backdrop, not a timing tool.

Example

After several central banks cut rates and the dollar weakens, global M2 reaches a new high. Analysts note that bitcoin has historically followed such rises with a delay of about two to three months.

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