BlackRock, the world’s largest asset manager, has significantly accelerated its cryptocurrency accumulation, with on-chain data revealing its largest weekly Bitcoin purchase since October 2025. According to Arkham Intelligence, BlackRock bought $1.33 billion worth of BTC last week, bringing its total net purchases since the July 1 low to $2.17 billion.
The buying spree marks a notable pickup in institutional appetite. Arkham noted that the weekly volume was the largest since Bitcoin hit its record high on October 6, 2025. The $1.33 billion weekly figure represents more than half of BlackRock’s total accumulation since the July 1 low, indicating a sharp increase in momentum after a period of relative price stability.
In a related data release, Onchain Lens reported that BlackRock moved approximately $240 million in Bitcoin and Ethereum to wallets associated with its spot ETFs. The transfers included 2,802.904 BTC and 6,580 ETH to wallets linked to IBIT, ETHA, and ETHB. This underscores continued institutional demand for regulated crypto exposure, with BlackRock’s Bitcoin ETF remaining among the most successful ETF launches in history.
Analysts view large-scale accumulation by BlackRock as a strong signal of long-term confidence in Bitcoin and Ethereum, especially as traditional financial institutions seek inflation hedges and portfolio diversification. While volatility remains a risk, the purchases suggest major players see current price levels as attractive entry points.
