Jane Street, the quantitative trading powerhouse that most people outside finance have never heard of, now employs roughly 3,500 people. And it wants 500 more before the year is out.
To put that in perspective, the firm generated around $39.6 billion to $40 billion in trading revenue in 2025. Do the math on 3,500 employees and you get an average compensation figure of approximately $2.7 million per person. That’s not a typo.
From small prop shop to global giant
Jane Street started in the late 1990s as a small proprietary trading group. Now it operates across more than 200 trading venues globally, providing liquidity in equities, ETFs, fixed income, and increasingly, digital assets.
The growth trajectory here is striking. Previous estimates pegged the firm’s headcount somewhere between 3,000 and 3,300 employees in 2025. Reaching 3,500 and planning to add another 500-plus signals that leadership sees room to run, not consolidate.
