As Bitcoin ($BTC) and Ethereum ($ETH) led the wider crypto market into a bearish mood over recent weeks, BlackRock Inc. (NYSE: BLK) saw its crypto portfolio fall by nearly $5 billion so far in November 2026.
At the time of writing, BlackRock's crypto portfolio has shrunk by $4.77 billion so far this November, according to data from Arkham Intelligence. At the start of the month, BlackRock's spot exchange-traded funds (ETFs) held crypto assets worth $71.17 billion.

Change in BlackRock's crypto portfolio so far in November. Source: Arkham Intelligence
Meanwhile, the firm's crypto portfolio stood at $66.39 billion. The drop was driven by BlackRock's iShares Bitcoin Trust (IBIT), whose funds fell by $3.89 billion, or roughly 6.09%, over this period.
As a result, IBIT reportedly had about $59.96 billion in net assets, down from $63.85 billion at the start of the month. Meanwhile, the value of BlackRock's iShares Ethereum Trust ETF (ETHA) holdings stood at $6.44 billion, falling $883.29 million, or 12.06%, over the past 9 days.
Change in BlackRock's crypto holdings in November
At the start of the month, IBIT held 815,657 $BTC, which had declined to 796,705 $BTC at the time of writing. Over this period, BlackRock reportedly distributed 18,942 Bitcoin, a reduction of 2.32%.
By contrast, ETHA's Ethereum holdings dropped by 199,957 ETH so far in November, standing at 3.02 million $ETH at publication. The 6.21% decline in the firm's Ethereum holdings this November was steeper than that of $BTC.
Market Impact
As BlackRock accelerated its Bitcoin and Ethereum sell-off over the past few days, the two assets came under heavier selling pressure.

Performance of $BTC and $ETH. Source: CoinMarketCap
Specifically, $BTC and $ETH had fallen by 5.21% and 10.36%, respectively, over the past 7 days. Renewed institutional demand for crypto could therefore potentially fuel bullish sentiment.
Source: coinpedia.org. Adapted by NBTC.

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