Supply shock

In economics a supply shock is an abrupt change in how much of a good can be produced or sold. In crypto the term usually describes the liquid supply shrinking quickly: Bitcoin's halving cuts new issuance in half overnight, while ETF purchases, corporate treasuries and holders withdrawing coins to cold storage reduce what sits on exchanges.

The argument is that if demand stays constant or grows while available coins become scarce, buyers must bid higher to find sellers. Analysts measure it with illiquid supply ratios, exchange reserves and the share of coins held by long-term holders, and the idea features heavily in halving-cycle narratives.

Scarcity alone does not set prices. Halvings are known years in advance, so markets may price them early, and the new supply removed is small relative to coins that existing holders can sell at any time. A 'supply shock' headline is a thesis about demand meeting thin liquidity, not a guarantee.