BlackRock’s Bitcoin ETF Navigates November Withdrawals and Looks Ahead
November Sees Significant Outflows for BlackRock’s Bitcoin ETF
BlackRock concluded November with substantial withdrawals from its flagship Bitcoin ETF, marking one of the most challenging months since its launch. The U.S.-listed iShares Bitcoin Trust (IBIT) experienced an estimated $2.34 billion in net outflows during the month, according to data compiled by SoSoValue. The most significant redemptions occurred mid-month, with approximately $523 million leaving the fund on November 18 and an additional $463 million on November 14. Speaking at the Blockchain Conference 2025 in São Paulo, BlackRock business development director Cristiano Castro addressed the pullback, stating that it does not alter the firm’s long-term perspective on the product. Castro emphasized, "ETFs are very liquid and powerful instruments. They exist to let people allocate capital and manage cash flow. What we’ve been seeing is perfectly normal; any asset that starts to experience compression usually has this effect, especially in an instrument that is heavily controlled by retail investors." He also noted that despite recent pressures, BlackRock's Bitcoin ETFs have become one of the firm's largest revenue contributors this year, a growth he described as "a big surprise" given the rapid pace of allocations.Investor Takeaway
While short-term flows indicate weakness, BlackRock attributes the recent swings to earlier demand and retail investor activity, viewing these as typical ETF mechanics rather than a sign of structural decline.
Peak Performance and Profitability Before the Drawdown
Cristiano Castro informed attendees that the combined U.S. and Brazil listings under the IBIT umbrella approached "$100 billion" in assets at their peak earlier in the cycle. This surge underscores the rapid transition of spot Bitcoin ETFs from niche instruments to significant investment vehicles for both U.S. and Latin American investors. The recent rebound in Bitcoin has also restored profitability for many holders. Bitcoin's move above $90,000 this week has pushed cumulative gains for IBIT investors to approximately $3.2 billion, reversing losses incurred during the recent pullback. Just weeks prior, profits across BlackRock’s Bitcoin and Ether ETFs had significantly diminished, collapsing from nearly $40 billion in early October to around $630 million. With Bitcoin experiencing a renewed rally, most positions have now recovered into the green, reflecting the volatility that has characterized the ETF’s first full year of trading.Signs of Stabilization in ETF Flows
The broader spot Bitcoin ETF sector has broken a four-week streak of redemptions, registering a $70 million inflow last week. Although modest compared to the $4.35 billion that exited the market in November, this shift interrupts the pattern of continuous withdrawals that had been impacting prices. Spot Ether ETFs also experienced a reversal, posting $312.6 million in weekly inflows after losing $1.74 billion over the preceding three weeks. This turnaround coincides with Ether's efforts to regain momentum following a period of underperformance relative to Bitcoin. The return of inflows suggests that the market may have passed the worst of the post-October unwind. Retail investors were a primary driver of this volatility, aligning with Castro's observation that ETFs linked to consumer behavior often exhibit rapid swings as traders adjust their positions or shift between assets.Investor Takeaway
Following several weeks of selling pressure, Bitcoin and Ether ETFs are showing early indications of stabilization. The sustainability of this rebound will likely depend on sustained price momentum and continued retail demand.

