BlackRock purchased bitcoins and ethers worth $600 million in a single day
The world’s largest asset management company, BlackRock, purchased bitcoins (BTC) and ethers (ETH) on September 16 for a total of over $620 million.
BlackRock added to its portfolio:
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2,270 BTC worth approximately $262.7 million,
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78,922 ETH worth $357.4 million.
As a result, the company’s total bitcoin holdings exceeded 757,000 BTC valued at $87.23 billion, while Ethereum holdings reached 3.68 million ETH worth $16.95 billion.
According to analyst Thomas Farer, BlackRock now controls 762,000 BTC through its iShares Bitcoin Trust (IBIT). The accumulation dynamics can be seen in the chart.
From the beginning of 2024 until mid-September 2025, IBIT’s bitcoin assets grew from less than 100,000 BTC to 751,000 BTC, making the company one of the largest holders of the leading cryptocurrency.
According to Arkham, the company’s total crypto portfolio increased from $99.88 billion on September 9 to $104.18 billion on September 16, rising $4.31 billion over the week. Most of this growth was driven by bitcoin and Ethereum:
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BTC rose almost $4,000 (+3.59%) over the week, increasing BlackRock’s position by $3.66 billion,
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ETH rose about $292 (+6.78%), increasing the position by $645 million.
Interestingly, despite the increase in the dollar value of Ethereum, the number of ETH in BlackRock’s wallets decreased by nearly 100,000 ETH over the same period. Selling during a price rally shows how volatile institutional trading activity can be.
See also: "Largest Chinese Bitcoin holder reveals investment plans"
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