Wall Street's largest market maker, Jane Street, has disclosed a position in a bitcoin ETF worth $990 million. Data from the 13F form filed with the SEC shows that the bulk of the position is in BlackRock's iShares Bitcoin Trust (IBIT). This announcement came in the same period when the company confirmed a $15 billion loss in July—its worst result in ten years.
A snapshot in time: what lies behind the numbers
The 13F form reflects only long ETF positions as of a specific date—in this case, June 30. It is not a complete picture of Jane Street's current portfolio, but rather a snapshot. It is important to understand: the company is not a classic investor betting on bitcoin's rise or fall. First and foremost, Jane Street acts as a market maker and authorized participant for several spot bitcoin ETFs.
Such moves are not uncommon for it. In the first quarter of 2026, Jane Street reduced its stake in IBIT by 71%, but simultaneously increased positions in Ethereum ETFs. These shifts resemble inventory management more than conviction-based investing. Large changes in 13F reports from market makers typically reflect hedging and client demand, not management's view of the market.
The growth in positions may indicate increased client interest in ETFs, but not that the firm itself expects a bitcoin rally. At the time of the filing, BTC was trading around $64,000, up 1.6% over the day.
Weak month, record year
The bulk of Jane Street's July loss is tied to its stake in the hedge fund Situational Awareness, which uses artificial intelligence. Due to margin calls, the fund was forced to urgently sell off its stock portfolio in late July. The situation was worsened by unsuccessful bets in Asian stock markets.
Notably, despite the disastrous month, Jane Street's annual trading revenue has already exceeded $40 billion—more than the record $39.6 billion for all of 2025. Whether the company increased its bitcoin ETF position after June 30, reduced it, or exited entirely, will only be shown by the next 13F report, expected in November.
My view: For now, $990 million is just a one-time snapshot that does not prove the largest market maker's bullish stance. Rather, it reflects liquidity and client needs. Investors should wait for November data to understand the real dynamics. The cryptocurrency market remains in a phase of high volatility, and the actions of giants like Jane Street are an important indicator, but not a guarantee of a trend.