BlackRock has sharply increased its Ethereum exposure, with spot Ethereum ETF products accumulating more than $1.5 billion in ETH over a 20-day stretch, according to Arkham Intelligence data.
The firm’s ETHA fund accounted for roughly $1.27 billion of the buying, while the newer ETHB fund added about $296.5 million. Combined inflows reached $1.57 billion. Notably, ETHB recorded no daily outflows during the period despite continued price volatility.
As of September 17, 2026, BlackRock holds approximately 3.56 million ETH, valued at around $8.69 billion, making it one of the largest institutional Ethereum holders. The accumulation reflects sustained investor demand for regulated Ethereum exposure through BlackRock’s ETF vehicles.
Separately, BlackRock deposited 54,096 ETH worth about $131.7 million and 2,015 BTC worth about $153.8 million to Coinbase Prime, for a total of roughly $285.5 million, according to blockchain data shared by @lookonchain. The move underscores broadening institutional activity in digital assets and may influence market liquidity and trader sentiment.
The transactions highlight how asset management giants are deepening their crypto footprint, with market participants watching whether this institutional flow supports ETH and BTC prices or encourages further participation from other large investors.
