Code-ready (chain ≥2024) — BTC held by spot ETFs
Spot ETF holdings tracks the institutional spot-ETF side of Bitcoin: Code-ready (chain ≥2024). It connects regulated-fund demand or holdings with the available on-chain supply.
Look for sustained sequences rather than one trading day. Compare the scale with Bitcoin issuance and price to understand whether ETF activity is material for the current market.
ETF figures are reported on trading schedules and can be revised or delayed. Fund flows show allocations, not the complete set of institutional Bitcoin activity.