U.S. spot Bitcoin ETFs (exchange-traded funds) drew $2.39 billion in net inflows this week, the largest weekly total of 2026.
These funds trade on the stock market like ordinary shares and hold real Bitcoin for investors. Yet the daily flow data and on-chain research point to thinner buying than the weekly record suggests.
Bitcoin ETF Inflows Hit a Record, Then Slowed Every Day
The week opened with $998.95 million on September 21, according to SoSoValue. Inflows then fell each session, reaching $134.47 million on Friday. That is about 87% below Monday, though money still came in for a seventh straight day.
Monday’s surge followed a 6.7% jump in Bitcoin on its heaviest volume since August 21. About $262 million in bets against Bitcoin were forcibly closed within an hour, which pushes those traders to buy.
Funds had returned after the Federal Reserve’s September 16 hike to a 3.75% to 4% range.
The mood shifted on September 23. S&P Global’s business survey showed the fastest U.S. growth since July 2021, and the 10-year Treasury yield rose above 5%. Bitcoin fell below $84,000 within an hour, and BeInCrypto flagged the next day that ETF buying had shrunk three sessions running.
Bitcoin now trades near $84,241, down 0.06% in 24 hours, per BeInCrypto Markets. ETFs hold $108.42 billion in total assets.
Signs That Bitcoin Buyers Are Still Active
Other data backs the case for demand. About $2.52 billion in net BTC left major exchanges between September 22 and 24, according to CryptoQuant. Coins leaving trading platforms usually move into long-term storage.
Large holders are also adding. Wallets holding 100 to 1,000 BTC have bought 113,950 BTC since July 15, Santiment data shows.
Moreover, long-term holders have added more than 3 million BTC since 2020, according to River, a Bitcoin financial services firm.
Why River Says Supply, Not Demand, Is Driving the Rally
River reads the same market differently. Its data shows 81% of Bitcoin’s supply, or 16.3 million BTC, has not moved in at least six months. Exchange trading volume sits 30% below where it began the year.
ETFs had also bought only about 18,000 BTC in September as of River’s September 23 report. That pace trails their monthly average since launch.
“Bitcoin has risen 50% without a real increase in demand,” the team wrote.
In River’s view, fewer coins changing hands has lifted the price more than fresh buyers have.
The next test arrives September 30 with August’s personal consumption expenditures (PCE) inflation report, the Fed’s preferred price gauge.
Economists expect a measurement change in that report to pull inflation lower. River cautions that nobody can predict when demand will return.
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