Bitcoin ETFs shed $643 million in a day, erasing the week's inflows

What happened

US spot Bitcoin exchange-traded funds recorded $643.2 million in net withdrawals on Friday, October 30, according to Farside Investors data cited by CryptoSlate and figures from Bitfinex cited by Crypto.news and Blockonomi. Five of the 12 funds tracked in Farside's table posted redemptions, while the other seven reported no net flow at all. No fund recorded an inflow large enough to soften the total.

The selling undid a short stretch of gains. Between Monday and Thursday of that week, the funds had pulled in a combined $440.8 million across four consecutive positive sessions. Friday's reversal left the completed October 26, 30 week with $202.4 million in net outflows, according to CryptoSlate, converting what had looked like a recovering inflow trend into a weekly retreat.

At fund level, BlackRock's iShares Bitcoin Trust (IBIT) carried the largest share of the day's redemptions at $233.7 million, followed by Fidelity's FBTC at $201 million and ARK 21Shares' ARKB at $129.5 million. Grayscale's GBTC lost $53.3 million and Bitwise's BITB shed $25.7 million, per the Farside data reported by Blockonomi.

Why it matters

The episode highlights how dependent the ETF channel is on a handful of large products and how quickly flows can flip. CryptoSlate noted that the withdrawals follow a pullback on October 22 that it had covered the previous week, suggesting the October pattern was one of repeated reversals rather than a single bad session. For investors who use brokerage accounts to gain Bitcoin exposure without holding the asset directly, daily creations and redemptions are the clearest available signal of institutional demand. Bitfinex also estimated that Bitcoin was trading about 7.5% below the average cost basis of ETF investors, meaning much of the recent buying sits underwater at current prices.

What the data shows

The daily figure of $643.2 million compares with $440.8 million of inflows over the preceding four sessions, a swing of more than $1 billion in net positioning within a week. For the full month, Bitfinex put October's net outflows at roughly $516 million. The month was not uniformly negative: IBIT still closed October with about $932 million in net inflows, but losses at other funds outweighed what BlackRock's product attracted, according to the figures reported by Crypto.news. Bitcoin itself traded near $77,804 on Sunday, up 0.45% over 24 hours, after falling to around $76,100 following the October 29 Binance hack.

Background

Spot Bitcoin ETFs have become a major conduit for US investor exposure since their launch, and the mechanics have evolved: the SEC permitted in-kind creations and redemptions for Bitcoin and Ether exchange-traded products in July 2025, allowing authorized participants to exchange assets instead of relying only on cash. The outflows landed alongside continued corporate accumulation. Strategy, the largest publicly listed Bitcoin holder, reported 848,517 coins as of October 25 after buying 267 Bitcoin on October 19. Executive chairman Michael Saylor then posted his familiar orange-themed chart on Sunday, November 1, with the message "We found room for even more orange," a pattern that has preceded Monday purchase disclosures.

What to watch

Two things to watch in the coming sessions: whether redemptions continue into November or the funds recover the way they did after the October 22 pullback, and whether Strategy confirms a new purchase on November 2, which would disclose the number of coins, the price paid and the financing used. Bitfinex's estimate that spot prices sit below the average ETF investor's cost basis is also worth tracking, since a sustained gap could influence whether holders keep redeeming shares or wait for a recovery.

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