Jane Street discloses $990M Bitcoin ETF position in SEC filing

Quantitative trading giant Jane Street disclosed a $990 million spot Bitcoin ETF position in an SEC filing, with $828 million held in BlackRock's iShares Bitcoin Trust. The disclosure comes alongside news of Jane Street suffering a rare $15 billion trading loss in July 2026, driven by bad bets in Asian equities and its stake in AI hedge fund Situational Awareness. Despite the setback, Jane Street has generated over $40 billion in net trading revenue in 2026, surpassing its 2025 record.

Jane Street ETF position disclosure

• ▪Jane Street's June 30, 2026, Form 13F filing shows its largest spot Bitcoin ETF stake is $828 million in BlackRock's iShares Bitcoin Trust.
• ▪Jane Street's remaining spot Bitcoin ETF holdings are spread across other funds, including Fidelity's Wise Origin Bitcoin Fund and Grayscale's Bitcoin Trust.
• ▪Quantitative trading firm Jane Street disclosed a $990 million spot Bitcoin ETF position in a regulatory filing with the Securities and Exchange Commission.

Market maker ETF mechanics

• ▪Jane Street serves as an anchor market maker and authorized participant across several spot Bitcoin ETFs, facilitating liquidity and quoting and settling ETF trades.
• ▪Jane Street cut its iShares Bitcoin Trust holdings by 71%, or 10,800 BTC, in the first quarter of 2026 while building up an ether ETF position.

Jane Street July trading losses

• ▪Despite its July 2026 losses, Jane Street generated over $40 billion in net trading revenue year-to-date, surpassing its 2025 record of $39.6 billion.
• ▪Jane Street's July 2026 losses were driven by bad bets in Asian equity markets and its stake in AI-focused hedge fund Situational Awareness, which faced margin calls.
• ▪Jane Street suffered its first losing month in approximately a decade, recording roughly $15 billion in trading losses during July 2026.

Bitcoin price drawdown trends

• ▪Bitcoin's price declined by approximately 50% from its October 2025 peak of over $126,000, trading near $64,000 on August 18, 2026.
• ▪BlackRock attributed most of Bitcoin's price decline to crypto-native deleveraging rather than issues with Bitcoin's long-term investment thesis.

Institutional Bitcoin ETF adoption

• ▪Edelman Financial, Tudor Investment Corporation, and Abu Dhabi's sovereign wealth funds also disclosed significant Bitcoin positions in August 2026.
• ▪BlackRock's iShares Bitcoin Trust is the largest spot Bitcoin ETF, managing $47.3 billion in assets since its launch in early 2024.

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