Bitcoin Spot ETF Flows

A Bitcoin ETF is a stock-market product that holds real Bitcoin on your behalf. You buy a share through a normal brokerage account and the fund owns the coins. Since the first US Bitcoin ETFs launched in January 2024, they've become one of the biggest single sources of demand for Bitcoin. When money goes into one, the fund goes out and buys real Bitcoin; when money leaves, it sells. That's why the flow of money in and out of these funds moves the market.

The number this page leads with is the flow, how much money moved into or out of all the US Bitcoin ETFs, added up. A single day rarely tells the story; what matters is which side is consistently larger over a week or a month. A steady run of money coming in means demand from big buyers is strong. A steady run going out means they're trimming, and it's worth watching even when it's small, because the long-term chart can hide a rough few weeks.

Two different numbers show up on this page, and they won't move in lockstep. The flow counts dollars in and out. The holdings figure further down counts coins, how much actual Bitcoin the funds are sitting on, which works out to a noticeable slice of all the Bitcoin there is. Because Bitcoin's price changes every day, the dollar value of the funds can climb even on a day money leaves, and slip on a day money arrives. Read the flow for buying-and-selling pressure, and the coin count for how big the funds have grown.

These funds trade on the stock market, so they're closed on weekends and holidays. You'll see flat stretches on the chart where no money moved because the market wasn't open. The big chart shows the running total of all money invested since 2024, which is why a single rough month barely shows up against the long climb. Big stretches of money leaving usually mean big players are pulling back, often because of something happening in the wider market, not because they've soured on Bitcoin, and historically these stretches have been temporary.