U.S. spot Bitcoin exchange-traded funds posted $526.6 million in net inflows on Monday, October 19, their strongest single day of deposits since September 22. BlackRock's IBIT drove the rebound, absorbing more capital than the entire market gained in net terms, even as rival funds reported withdrawals. The recovery in fund flows stood in contrast to Bitcoin's price action, which remained subdued near $81,500.

BlackRock Dominates Inflows as Rival Funds Shed Capital

Data from SoSoValue showed that BlackRock's iShares Bitcoin Trust (IBIT) attracted $665.2 million on Monday, its largest daily inflow since October 7, 2025. The figure exceeded the market's overall net gain because other issuers lost capital during the same session.

IBIT has grown into the largest fund in the category since U.S. spot Bitcoin ETFs launched in January 2024, and Monday's split illustrated how concentrated demand can be: the market's net total was positive only because a single issuer's intake outweighed withdrawals across its peers.

Fidelity's Wise Origin Bitcoin Fund (FBTC) recorded $83.6 million in outflows, while Grayscale's Bitcoin Trust (GBTC) lost $54.9 million, a combined $138.5 million in withdrawals. None of the remaining spot funds posted net inflows during Monday's session.

Monday's demand followed a stronger third quarter for BlackRock's digital asset business. The firm's crypto ETF assets rose 63% to $79.6 billion by September 30, supported by both client deposits and higher cryptocurrency prices, and the manager reported $7.9 billion in quarterly client inflows.

October's Losses Narrow After Monday's Rebound

The fresh inflows followed a difficult stretch for the products. U.S. spot Bitcoin ETFs lost a combined $228.6 million between October 12 and 16, with investors pulling $261.4 million on October 14 and another $82.4 million on October 16, according to daily flow figures — a dataset widely tracked because creations and redemptions in these funds offer a near-real-time gauge of spot Bitcoin demand through regulated brokerage channels.

Monday's gains reduced October's combined net withdrawals to approximately $90.5 million. Before the session, the monthly shortfall had near $617.2 million. Total assets across U.S. spot Bitcoin funds reached about $105.5 billion. Even after the rebound, October's ledger remains marginally negative, leaving the month's final total dependent on how subsequent sessions unfold.

Demand for Bitcoin also extended beyond exchange-traded products. In another recent purchase, Strategy added 267 BTC for $22.1 million between October 12 and 18, lifting its reported holdings to 848,517 BTC after the transaction. The company funded the acquisition mainly by selling its common shares, extending an accumulation strategy that has made it the largest publicly disclosed corporate holder of Bitcoin.

Ether Funds Fall as Bitcoin Price Stalls

Ethereum funds followed a different path on Monday. U.S. spot Ether ETFs lost $103.3 million, extending their withdrawal streak to four consecutive trading sessions. BlackRock's iShares Ethereum Trust (ETHA) contributed $95.4 million to the daily total, while Solana funds recorded $6.7 million in outflows. That left Monday's rebound confined to Bitcoin products, with altcoin-linked funds continuing to shed capital.

Bitcoin's price offered little follow-through. The asset reached $83,117 during Monday's trading but ended the session near $81,924, according to Investing.com data. A separate Bitcoin price analysis focused on $80,000 support as traders assessed whether the market could hold recent levels. By Tuesday, Bitcoin traded close to $81,500.

Monday's session therefore delivered the strongest ETF demand in nearly a month, yet the inflows coincided with limited price gains rather than a sustained advance, leaving open the question of why spot prices have yet to respond in kind. With October's fund tally still slightly negative and $80,000 the support level analysts are watching, upcoming daily flow figures will offer the next read on whether the rebound extends.