Bitcoin ETFs lose $643 million in a day, the most since June, and flip October back to net outflows

Investors pulled about $643 million from US spot bitcoin exchange-traded funds on Friday, October 30, the biggest one-day outflow since June, according to Farside Investors data reported by crypto.news and CryptoSlate. It came a day after the Binance theft rattled crypto markets.

BlackRock's iShares Bitcoin Trust lost about $234 million, Fidelity's Wise Origin Bitcoin Fund about $201 million and the ARK 21Shares Bitcoin ETF about $130 million, together about 88% of the day's total. Grayscale's GBTC and Bitwise's BITB also saw outflows, and none of the funds recorded inflows.

The day wiped out a run of inflows. The funds had taken in about $441 million from Monday to Thursday, so the week ended with a net outflow of about $202 million. Before Friday, October was up about $127 million on net, according to crypto.news; after it, the outlet counts a net outflow of about $516 million for the month, with BlackRock's fund still taking in about $932 million while the rest lost money. US spot ether funds lost about $156 million on Friday as well.

Bitcoin traded at about $77,500 around midday on Saturday, according to CoinGecko data cited by CryptoTicker, ahead of the October monthly close. The next flow figures arrive when US markets reopen on Monday.