Jane Street Discloses $990M Bitcoin ETF Stake in SEC Filing

Jane Street, a major quantitative trading firm and market maker, disclosed a position of more than $990 million in U.S. spot Bitcoin exchange-traded funds in a regulatory filing, revealing a significant stake in the cryptocurrency market amid recent volatility. The filing, submitted to the U.S. Securities and Exchange Commission, details holdings as of June 30, 2026, and shows the firm's largest exposure is in BlackRock's iShares Bitcoin Trust.

The position, equivalent to approximately 15,394 Bitcoin at current prices, is concentrated in BlackRock's fund, with about $828 million allocated to the iShares Bitcoin Trust. The remainder of the holdings is distributed among other vehicles, including Fidelity's Wise Origin Bitcoin Fund and Grayscale's Bitcoin Trust. The disclosure comes just weeks after Jane Street reported its first monthly loss in roughly a decade, a setback of approximately $15 billion in July 2026. That loss was primarily attributed to its stake in the AI-focused hedge fund Situational Awareness, which faced margin calls and poor performance in Asian equity markets.

Despite the July loss, Jane Street has generated more than $40 billion in net trading revenue so far...