Jane Street Reports Over $1 Billion in Bitcoin ETF Holdings

The report shows Jane Street held approximately $828 million in BlackRock’s IBIT at the end of the second quarter. This marks a notable recovery from the first quarter, when the firm’s reported stake in the same fund had dropped to roughly $225 million. Beyond BlackRock, the remainder of the $1 billion figure is distributed across other U.S.-listed products, including Fidelity’s Wise Origin Bitcoin Fund and Grayscale’s Bitcoin Trust.

While these numbers highlight institutional interest in crypto-linked securities, they offer an incomplete picture of the firm's actual market stance. Form 13F filings reflect only long positions in specific eligible securities and omit short sales, derivatives, and various hedging strategies. Consequently, the disclosure does not confirm a directional bet on Bitcoin, as the shares likely serve functions related to market making, arbitrage, or liquidity provision. Because the data captures only a single moment in time—June 30—it remains a historical snapshot that may no longer reflect the firm’s current portfolio. Market participants must wait for the next filing deadline in November to see how Jane Street’s position shifted throughout the third quarter.