BlackRock's Bitcoin ETF, IBIT, achieved a record $8 billion in trading volume during a single U.S. session, contributing to a total of $11.5 billion across all spot Bitcoin ETFs. This surge was driven by BlackRock's strategic transfer of Bitcoin and Ethereum holdings to Coinbase, which heightened institutional interest in IBIT. Additionally, Fidelity's FBTC and Grayscale products experienced inflows, while IBIT put options reached an all-time high as traders sought to hedge against increased market volatility.