BlackRock, the world’s largest asset manager, saw the value of its on-chain cryptocurrency portfolio decline sharply in the first quarter of 2026, as falling prices offset continued Bitcoin (BTC) accumulation and ongoing Ethereum (ETH) outflows. Between January 1 and March 31, 2026, the combined value of BlackRock’s Bitcoin and Ethereum holdings dropped from $78.36 billion to $57.89 billion, representing a $20