Institutional Custodians Surpass Exchanges in Total Bitcoin Holdings

A new dataset from River shows a pivotal change in how Bitcoin is held across the market: the combined reserves of spot ETFs and publicly traded companies have now surpassed the total BTC sitting on centralized exchanges.

It’s a shift that quietly reshapes Bitcoin’s supply dynamics and marks one of the most significant distribution changes since institutions began accumulating the asset in earnest.

For years, exchanges were the dominant holders of liquid Bitcoin. Their balances climbed toward the 3 million BTC mark between 2018 and 2020, then flattened out before entering a persistent decline starting in 2022. That downtrend reflected a steady migration of coins toward long-term storage as more users and institutions moved their BTC off trading platforms.

At the same time, ETF issuers and corporate treasuries were still minor players until the 2020-2021 cycle. But the arrival of U.S. spot ETFs and aggressive balance-sheet strategies changed the landscape. Their combined holdings grew from a few hundred thousand BTC to more than two million by late 2024, continuing upward into 2025. According to River’s latest figures, these institutional custodians now control more Bitcoin than all exchanges combined.

The implications are straightforward: a shrinking proportion of Bitcoin is available for immediate trading. ETFs routinely absorb supply while corporations increasingly treat BTC as a long-horizon reserve asset. With fewer coins circulating on exchanges, liquidity tightens, especially during demand spikes – a pattern that has historically supported stronger medium-term price action.

The data paints a clear picture of where Bitcoin is heading. Control of supply is shifting away from short-term market participants and toward entities that rarely sell. ETFs and public companies have effectively become some of the largest long-term custodians in the ecosystem – and their growing footprint is now shaping the structure of the market itself.