The 7.1 million-share addition represented one of the largest institutional inflows into IBIT during Q4 2025. The newly acquired shares were valued at roughly $276 million based on average trading prices during the quarter. The increase brought Jane Street’s ownership to about 1.51% of IBIT’s outstanding shares.
However, market makers typically operate delta-neutral strategies, hedging ETF exposure through futures, options, or spot transactions to manage risk rather than to take outright directional bets.
FAQ ⏱️ What did Jane Street acquire in Q4 2025? Jane Street acquired 7,105,206 additional shares of Blackrock’s Ishares Bitcoin Trust, increasing its total stake to over 20.3 million shares. How much was Jane Street’s IBIT position worth at year-end 2025? At IBIT’s Dec. 31 closing price of $49.65, the firm’s holdings were valued at approximately $1.01 billion. What does IBIT invest in directly? IBIT holds bitcoin as its underlying asset, giving investors regulated exchange-traded exposure to spot price movements. What does Jane Street do as an authorized participant? As an authorized participant, Jane Street creates and redeems ETF shares in exchange for underlying bitcoin, helping keep ETF prices aligned with net asset value.
