BlackRock Inc. (NYSE: BLK) has bought cryptocurrency – via its spot exchange-traded funds (ETFs): iShares Bitcoin Trust (IBIT), iShares Ethereum Trust ETF (ETHA), and iShares Staked Ethereum Trust ETF (ETHB) – valued at $843.78 million over the past 20 days.
BlackRock’s IBIT has net-purchased Bitcoin (BTC) worth $434.11 million between August 20, 2026, and September 16, according to data from SoSoValue, which Finbold analyzed on September 17. During this period, IBIT saw five days of cash inflows and eight days of outflows.
IBIT daily cash flow for the past 20 days. Source: SoSoValue
As such, BlackRock held 782,623.424 BTC, valued at $59.28 billion at the time of writing, according to its official updates.
Over the past three weeks, BlackRock’s ETHA net-loaded Ethereum (ETH) has been valued at $222.92 million. As a result, ETHA has 3,527,868.675 ETH, roughly $8.46 billion at the time of reporting, as per the latest post.
ETHA daily cash flow for the past 20 days. Source: SoSoValue
Over the past 20 days, BlackRock’s ETHB has net-accumulated $186.7 million. Consequently, this spot ETF increased its assets to 336,809.15 ETH, valued at $1.02 billion at the time of publication.
ETHB daily cash flow for the past 20 days. Source: SoSoValue
Cumulatively, BlackRock’s Ethereum ETF holds 3,864,677.825 ETH.
Bitcoin and Ethereum price performance amid BlackRock’s purchases
Both Bitcoin and Ethereum prices have been trapped in a choppy consolidation over the past 20 days, despite BlackRock’s shopping spree. Nonetheless, Bitcoin price has risen 18.89% during the last 30 days, trading at $76,260 at press time.
BTC/USD 30-day chart. Source: Finbold
Meanwhile, Ethereum price has gained 28.20% during this period, trading at $2,430 on Thursday.
ETH/USD 30-day chart. Source: Finbold
If BlackRock continues to net purchase, the recently established uptrend could gain momentum.
Featured image via Shutterstock