BlackRock and Fidelity Lead $635M Spot Bitcoin ETF Outflows

U.S. spot bitcoin exchange-traded funds suffered $635.49 million in net outflows on Thursday, registering the sector's largest single-day redemption volume since June. The abrupt reversal halted a promising three-session buying streak that had drawn roughly $1.08 billion in fresh institutional capital into the asset class. The swift turn in market sentiment caught traders off guard after buying had broadened across nearly all major funds just one session earlier.

The wave of capital flight was concentrated predominantly in the two flagship funds operated by Wall Street giants BlackRock and Fidelity. BlackRock's iShares Bitcoin Trust (IBIT) paced the retreat with $254.05 million in net outflows, marking one of its heaviest single-day drops on record. Fidelity's Wise Origin Bitcoin Fund (FBTC) closely trailed, shedding $217.46 million as institutional clients unwound positions.

Together, BlackRock and Fidelity represented approximately 74 percent of the total capital withdrawn from the spot vehicle complex on Thursday. Their disproportionate contribution to the overall tally illustrates how category-wide flow figures remain tethered to the behavior of the two leading asset managers. When institutional demand hesitates at the top tier, broader sector statistics quickly turn negative.

Redemptions were not limited to the largest issuers, as mid-tier and legacy funds also posted significant net exits across the board. Ark Invest and 21Shares' ARKB fund recorded $109.43 million in outflows, while Grayscale's GBTC shed $29.53 million during the session. Bitwise's BITB fund similarly registered $27.35 million in net departures, compounding the aggregate drain on industry liquidity.

Against the broader backdrop of institutional retrenchment, Morgan Stanley's MSBT managed to secure an isolated gain as the sole fund in positive territory. The vehicle recorded a modest net inflow of $2.33 million, resisting the day's pervasive liquidation pressure. While unable to offset the broader deluge, the solitary intake demonstrated lingering pockets of selective demand.

Thursday's massive capital drain effectively erased nearly 60 percent of the cumulative gains built across the prior three days of vigorous inflows. The downturn also reversed recent progress on monthly performance metrics, returning October's aggregate net flows into negative territory. The sharp change in trajectory underscores the fragile nature of recent spot market momentum.

The substantial volume of redemptions, combined with accompanying downward pressure on underlying token prices, dealt a noticeable blow to aggregate sector valuations. Total net assets held across all U.S. spot bitcoin ETFs dropped by nearly $5 billion to finish the session at $104.71 billion. The contraction represents a significant single-session erosion of the capital cushion accumulated over recent weeks.

Market observers attribute such abrupt swings to the tactical nature of institutional capital navigating digital asset exposure. Large participants often rebalance holdings rapidly in response to broader macroeconomic signals, interest rate expectations, and liquidity shifts across traditional financial markets. Because spot ETFs provide frictionless entry and exit mechanisms, portfolio adjustments can manifest in sudden, oversized headline flow figures.

Industry analysts monitoring tracking data from services like SoSoValue will watch forthcoming sessions closely to gauge whether Thursday was an isolated bout of profit-taking or the start of a sustained de-risking phase. Continued outflows would place renewed pressure on asset managers' balance sheets, whereas a prompt rebound would confirm underlying institutional resilience. For now, market participants remain cautious as the category digests its sharpest withdrawal in months.