Odaily Planet Daily reports that, according to the latest 13F filing, Wall Street quantitative trading giant Jane Street significantly reduced its holdings of various Bitcoin-related assets in the first quarter of 2026, while increasing its positions in Ethereum ETFs and select cryptocurrency stocks.
Among these, Jane Street’s holdings of BlackRock’s IBIT decreased by approximately 71% quarter-over-quarter to 5.9 million shares, valued at around $225 million; Fidelity’s holdings of FBTC decreased by approximately 60% to about 2 million shares, valued at around $115 million.
Additionally, its Strategy position decreased from approximately 968,000 shares in Q4 2025 to about 210,000 shares, with the position value declining from approximately $146 million to about $27 million. It also reduced its holdings in Bitcoin mining companies including IREN, Cipher Mining, TeraWulf, and Core Scientific.
On the other hand, Jane Street significantly increased its holdings in Ethereum ETFs, adding approximately $82 million in combined positions across BlackRock’s ETHA and Fidelity’s ETH funds. Meanwhile, its positions in Riot Platforms, Coinbase, and Galaxy Digital also rose, with Galaxy Digital’s holdings increasing sharply from about 17,000 shares to approximately 1.5 million shares.