US spot Bitcoin exchange-traded funds recorded $440.8 million in net inflows across four consecutive trading sessions ending October 29, with BlackRock's products driving most of the purchases. The four-day streak concluded just before a $6.3 billion security breach at Binance shook cryptocurrency markets and pushed Bitcoin below $77,000 during Friday's trading.

Four Straight Days of Net Inflows

Daily figures compiled by Farside Investors show inflows of $110.3 million on October 26 and $176 million on October 27. Investors added another $137.3 million the following day, before contributions slowed to $17.2 million on Thursday. Net figures subtract redemptions from new purchases, which is why individual products can post outflows even as the category total stays positive.

As market account That Martini Guy noted on October 30:

Bitcoin spot ETFs have now recorded FOUR consecutive days of net inflows. That's approximately $440.8M flowing into the funds since October 26. Yesterday added another $17.2M, led by BlackRock's IBIT with $12.8M. The positive streak is encouraging, especially after the massive… pic.twitter.com/kkXcW2JL3I

— That Martini Guy ₿ (@MartiniGuyYT) October 30, 2026

How Did BlackRock Lead Bitcoin ETF Inflows?

BlackRock's IBIT contributed $410.6 million to the four-day total. The fund took in $110.3 million on Monday, $151.5 million on Tuesday, $136 million on Wednesday and $12.8 million on Thursday, giving it roughly 93.1% of the category's net intake once outflows at other products were taken into account.

Fidelity's FBTC added $35 million, comprising $24.5 million on Tuesday and $10.5 million on Thursday. Bitwise's BITB attracted $10.1 million across Wednesday and Thursday, while Morgan Stanley's MSBT took in $4.2 million on Thursday.

Two products registered negative flows: Grayscale's Bitcoin Mini Trust lost $15.3 million, and WisdomTree's BTCW recorded $3.8 million in outflows.

Across the four sessions, positive flows totaled $459.9 million. Deducting the $19.1 million in outflows yields net Bitcoin ETF inflows of $440.8 million.

Why Did Fund Inflows Slow on Thursday?

Thursday's total of $17.2 million was approximately 87.5% lower than Wednesday's figure. Four funds still received fresh investment, but withdrawals elsewhere offset much of the total.

The rebound followed two difficult trading sessions on October 22 and 23, when Farside recorded withdrawals of $635.6 million and $137.9 million, respectively, for a combined $773.5 million in outflows. The subsequent $440.8 million recovery covered only 57% of that amount, leaving a gap of $332.7 million.

Even so, acquisitions earlier in the period produced a positive weekly outcome: October 19-23 delivered net inflows of $301.2 million, including daily gains of more than $520 million.

What Happened During the Binance Breach?

According to Binance, hackers breached hot wallets and took $6.3 billion worth of assets on October 30, with the unauthorized activity beginning late on October 29 UTC. Hot wallets keep the keys needed to move funds on internet-connected systems so exchanges can process user withdrawals, in contrast to offline cold storage.

Bitcoin fell under $77,000 on Friday, reaching nearly $76,944. The decline came after the breach, although the timing does not indicate that the breach caused all of the selling. The incident also occurred after most of the four days of Bitcoin ETF inflows had already been recorded, and without fund-flow data for October 30, the reaction of ETF investors cannot yet be determined.

Binance stated that it had reserved more than $6.34 billion worth of its own funds to cover any losses. Of that amount, $5 billion worth of assets was in the stolen cryptocurrencies, and purchases of other assets were still ongoing. The platform said it had frozen approximately $3 billion worth of stolen assets with the help of the industry. It has paused withdrawals and promised a proof-of-reserves update, an attestation intended to demonstrate that an exchange's holdings cover customer balances.

What Comes Next for Bitcoin ETF Demand?

Traders now face two distinct questions: how fund flows develop in the sessions ahead and when Binance will restore withdrawal services. Binance said its reopening schedule depends on the completion of its security checks.

The upcoming Bitcoin ETF flow report should provide an indication of post-breach demand. Until then, the $440.8 million total reflects purchases made before Friday's plunge.