
AI-generated summary
U.S. spot Bitcoin ETFs launched earlier in 2024 and have seen fluctuating inflows, with last week recording the smallest weekly net inflow in their history at just $6.2 million.
In brief
U.S. spot Bitcoin ETFs took in $998.95 million on Monday, their biggest day since October 2025 and a week after their smallest weekly inflow on record.
BlackRock's IBIT took $381.37 million, with Ark & 21Shares and Fidelity adding $527.96 million between them.
Bitcoin's rally carried it above an estimated ETF cost basis of $81,722, putting the average fund holder back in profit.
U.S. spot Bitcoin ETFs took in $998.95 million on Monday, according to SoSoValue, one week after the same funds posted the smallest weekly net inflow of their history.
BlackRock's IBIT drew in $381.37 million of it, with Ark & 21Shares' ARKB following at $289.12 million and Fidelity's FBTC at $238.84 million. Morgan Stanley's MSBT added $61.67 million and Bitwise's BITB $21.56 million. Grayscale's two funds took single-digit millions apiece, while VanEck's HODL and Valkyrie's BRRR recorded nothing at all.
The surge in daily flows marks a stark reversal from last week, when funds ended the week to September 18 just $6.2 million ahead—their smallest weekly inflow across 141 weeks of trading. Bloomberg Intelligence analyst Eric Balchunas put Monday's total as the biggest single-day haul since last October.
The rally moved a threshold, as Bitcoin climbed above an estimated ETF cost basis of $81,722 a coin—putting the average holder of a U.S. spot Bitcoin fund back in profit for the first time since January, Balchunas' colleague James Seyffart said. Bitcoin was trading near $85,900 at the time, around 5% above that mark.
Trading told a quieter story, however. The funds turned over about $4.5 billion, which Seyffart called not especially high given the size of the move in Bitcoin, and slightly below the $4.6 billion they traded on Friday. Balchunas said the figure was elevated against stock and gold ETFs, and that IBIT was at or near the top 10 by volume.
He also cautioned that flows booked to one session largely reflect the previous one. Monday's total probably captures Friday's buying rather than Monday's, he said, which would leave the response to Monday's move still to show up.
Cumulative net inflows since launch now stand at $56.16 billion. The funds hold $110.14 billion, equal to 6.30% of Bitcoin's market capitalization.
AI outlook — possibilities, not facts
Bitcoin ETF inflows will continue if prices remain above the $81,722 cost basis
Likely · Within weeks

GameStop faces a critical test on Friday as Bitcoin trades well above the $70,000 strike price of its covered-call contracts. The company's strategy, involving 2,000 BTC, may limit further gains if the positions remain open through the September 25 expiration.

Moscow Exchange (MOEX) is launching perpetual futures for five major cryptocurrencies on September 22. The cash-settled contracts allow qualified investors to gain price exposure to Bitcoin, Ethereum, Solana, XRP, and Tron without holding the underlying assets.

Binance has acquired $100 million in Circle Class A common stock as part of a new five-year partnership to promote the USDC stablecoin. The deal includes monthly incentive fees for Binance and a two-year lockup period on the acquired shares.

Robinhood CEO Vlad Tenev expects crypto-based prediction markets to surpass sports betting within years. As Bitcoin reaches $86k, Robinhood is expanding its event-contract offerings to avoid the legal challenges currently surrounding sports-based wagering.

Circle has raised $100 million by selling 1,237,011 Class A shares to Binance at $80.84 per share. The deal includes a five-year commercial agreement where Circle pays Binance fees for USDC distribution via its wallet infrastructure.

The European Central Bank is set to invest a portion of its own funds into tokenized public-sector securities. The transactions will be settled via the newly launched Pontes DLT system, allowing the bank to gain practical experience in the full investment lifecycle.