Record ETF Inflows Stir Doubts Over True Bitcoin Demand

This week, U.S.-listed spot Bitcoin exchange-traded funds took in $2.39 billion in net inflows, the highest weekly total of 2026.

The funds, which trade on stock exchanges like regular equities and hold actual Bitcoin, attracted large sums. However, daily flow figures and on-chain analysis indicate weaker buying than the headline number implies.

Bitcoin ETF Inflows Set Record, Then Declined Daily

According to SoSoValue, the week began with $998.95 million on September 21. The daily inflow dropped every subsequent session, ending at $134.47 million on Friday. That represents an 87% decline from Monday, although net inflows extended a seven-day streak.

The Monday jump came after Bitcoin rose 6.7% on its strongest trading volume since August 21. Within an hour, roughly $262 million in short positions were liquidated, forcing traders to buy back.

Inflows had resumed following the Federal Reserve's September 16 rate rise, which brought the target range to 3.75%–4%.

Sentiment turned on September 23. S&P Global reported the fastest U.S. business expansion since July 2021, while the 10-year Treasury yield climbed past 5%. Bitcoin dropped below $84,000 within an hour, and BeInCrypto noted the following day that ETF inflows had contracted for three consecutive sessions.

Bitcoin is currently trading around $84,241, a 0.06% decline in the past day, according to BeInCrypto Markets. Spot ETFs now hold $108.42 billion in assets.

Indications That Bitcoin Purchasers Remain Active

Additional data supports the demand narrative. CryptoQuant reports that $2.52 billion in net Bitcoin exited major exchanges from September 22 to 24. Withdrawals from trading platforms typically indicate coins moving to long-term storage.

$2.7 Billion in Bitcoin has been withdrawn from crypto exchanges in just 4 days.

Whales are stacking BTC.

— Crypto Rover (@cryptorover) September 26, 2026

Accumulation by large entities is also evident. Santiment data indicates that addresses with 100–1,000 BTC have acquired 113,950 bitcoin since July 15.

Furthermore, long-term holders have accumulated over 3 million BTC since 2020, per River, a Bitcoin financial services company.

River Argues Supply Constraints, Not Demand, Fuel the Rally

River views the market from a different angle. According to its data, 81% of Bitcoin's circulating supply—16.3 million BTC—has remained stationary for at least six months. Exchange trading volume is 30% lower than at the start of the year.

River's September 23 report also showed that ETFs had purchased roughly 18,000 BTC in September so far. That rate is below their long-term monthly average.

“Bitcoin has risen 50% without a real increase in demand,” the team wrote.

From River's perspective, a reduction in coins being traded has boosted prices more than new buyers.

For once, there is a real supply shock in bitcoin.

This year:
– Trading volumes are down 30%
– Price is up 50%
– 81% of the supply hasn’t moved in 6 months

Our newsletter covers the details

— River (@River) September 23, 2026

The upcoming catalyst is the August PCE inflation report—the Fed's favored measure—due on September 30.

Economists anticipate a methodological change in the report will bring inflation down. River warns that the timing of demand's return remains unpredictable.