Jane Street Slashes Bitcoin ETF Holdings in Q1, Boosts Ethereum ETF and Galaxy Digital Positions
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 certain crypto stocks.
Specifically, Jane Street's holdings in BlackRock's IBIT decreased by approximately 71% quarter-over-quarter to 5.9 million shares, valued at around $225 million. Its position in Fidelity's FBTC fell by roughly 60% to about 2 million shares, worth approximately $115 million.
Furthermore, its Strategy (formerly MicroStrategy) holdings dropped from approximately 968,000 shares in Q4 2025 to about 210,000 shares, with the position's value declining from roughly $146 million to around $27 million. Jane Street also reduced its stakes in Bitcoin mining companies such as IREN, Cipher Mining, TeraWulf, and Core Scientific.
On the other hand, Jane Street significantly increased its Ethereum ETF holdings, adding a combined total of approximately $82 million to BlackRock's ETHA and Fidelity's ETH funds. Concurrently, its positions in Riot Platforms, Coinbase, and Galaxy Digital all increased, with the Galaxy Digital holdings surging from roughly 17,000 shares to about 1.5 million shares.
