So sánh nắm giữ sàn vs ETF

This page compares two structural curves: total bitcoin held in exchange wallets network-wide (Coin Metrics scope, full history since 2011), and cumulative net inflows into US spot ETFs (bitcoin-data.com, since January 2024). The former is the crypto-native world's liquidity reserve — coins on exchanges are always ready to sell and always absorbing bids; the latter meters how many coins traditional finance has siphoned off. Together they show two faces of one process: supply migrating from tradeable-on-venue status into regulated custody.

Exchange supply is a stock (coins sitting in exchange wallets now); the ETF line is accumulated flow (net creations minus redemptions, excluding GBTC's pre-conversion stock) — comparing absolute levels is meaningless; compare changes. Within the window, exchange supply fell from about 2.94M coins on ETF launch day (2024-01-11) to about 2.66M, while ETF cumulative inflows rose from zero to a peak of 726K — the ETFs absorbed distinctly more than exchanges shed, meaning ETF coins also came from OTC blocks and miner sales, not just exchange stock. A further caveat: Coin Metrics covers a finite list of major exchanges, and cold-wallet identification carries methodological error — treat absolute levels as trend baselines only.

Falling exchange supply is routinely read as less sell pressure, therefore bullish — a leap. Coins leave exchanges for many reasons: into self-custody (genuinely reducing immediate sell pressure), into ETF custody (a different pool, where sell pressure becomes redemption pressure), or internal exchange reshuffles (nothing changed). Conversely, rising supply is not necessarily pre-dump behavior — bull markets require exchanges to carry more inventory to absorb bids. Having the ETF line alongside strips out one layer of confusion: when exchange outflows and ETF inflows swell together, that is chiefly supply relocation, not demand contraction.

Three readings. First, synchrony: exchange-out matching ETF-in is structural migration; exchange-out with a flat ETF line more plausibly signals genuine self-custody accumulation. Second, ETF inflection points: a flattening cumulative line means traditional-finance demand has stalled; a downturn (as since late 2025) means net redemptions — if exchange supply rebounds in step, coins are flowing back on-venue and effective supply pressure is rising. Third, over long horizons watch exchange supply as a share of circulating supply: its persistent decline since the 2021 peak is one of this cycle's defining structural backdrops — but coins off exchanges are not coins that won't sell; ETF redemptions are sales too, merely settled off-chain.

Beyond institutional flows, check leverage via open interest and BTC liquidations.