Jane Street nearly doubled its revenue to $40 billion last year, up from $20.4 billion in 2024 and just over $10 billion in 2023. The jump follows a $15.5 billion fourth‑quarter haul that eclipsed the Wall Street banks that once dominated market making. Their success stems from advanced algorithms that exploit micro‑price differentials across equities, options, and fixed‑income instruments daily.

In the first quarter of 2026, Wall Street giants posted record trading revenues—JPMorgan earned $11.6 billion, Goldman Sachs $9.3 billion, and Citi $7.2 billion—yet none surpassed Jane Street’s fourth‑quarter figure. The firm’s growth aligns with the post‑2008 shift toward electronic trading and tighter banking regulation, allowing a handful of specialists to capture thin spreads while also expanding into longer‑term bets that span weeks and months.

Beyond trading, Jane Street invests heavily in AI, committing $1 billion to CoreWeave and $6 billion to its platform, plus stakes in Anthropic, Thinking Machines Lab, and Antithesis. These bets have boosted earnings as AI firms climb valuations, positioning the firm as a key player in both financial markets and technology innovation. Jane Street’s trajectory signals a shift in who controls market liquidity.