BlackRock Adds $1.5 Billion of Bitcoin and Ether Through ETFs in Five Trading Days

BlackRock Inc. (NYSE: BLK) has stepped up its crypto buying as the broader market rallied. Between Sept. 17, 2026 and Sept. 24, the cryptocurrency market's total capitalization rose by more than $260 billion, and BlackRock accumulated more than $1.5 billion in Bitcoin (BTC) and Ethereum (ETH) over the same span. Data from SoSoValue show that across five U.S. stock-market trading sessions, BlackRock's three spot crypto ETFs—iShares Bitcoin Trust (IBIT), iShares Ethereum Trust ETF (ETHA) and iShares Staked Ethereum Trust ETF (ETHB)—bought a combined $1.5104 billion worth of BTC and ETH. IBIT posted $1.190 billion of net inflows over the past seven days, lifting its Bitcoin holdings to $67.25 billion as of reporting. ETHA logged $320.45 million in net purchases since last Thursday, taking net assets to $9.74 billion. ETHB attracted $15.64 million of net inflows over the past seven days and stood at $1.15 billion in net assets. In total, BlackRock's crypto ETF lineup held $78.14 billion in assets at the time of publication. BlackRock outpaces peers in ETF-driven accumulation SoSoValue data indicate BlackRock led other spot Bitcoin and spot Ethereum ETF issuers in net crypto accumulation over the past few days. Over the same period, U.S. spot Bitcoin ETFs drew $2.653 billion in net inflows, pushing total assets to $108.66 billion. U.S. spot Ethereum ETFs recorded $680.72 million in net inflows since last Thursday, with net assets rising to $17.5 billion. Featured image via Shutterstock.