Jane Street, the quantitative trading firm often unknown to the public, now boasts a $20 billion portfolio of private companies.
Jane Street reported $39.6 billion in trading revenue for 2025, surpassing JPMorgan's trading desk. Q1 2026 revenue reached $16.1 billion, more than double from the previous year. Estimated net income is around $10 billion.
Among its investments is a stake in Anthropic, an AI leader known for the Claude models, acquired from the FTX estate in 2024.
From market maker to private heavyweight, Jane Street originally gained its reputation in market making and quantitative trading, supplying liquidity across various instruments.
By April 2026, the firm made 39 investments across sectors like AI and crypto, committing $1 billion for the fiscal year to AI startups, including CoreWeave.
Jane Street operates JCX, a digital assets platform launched in 2018, facilitating around-the-clock trading of crypto tokens.
Jane Street’s substantial revenue allocation to private equity alters competitive dynamics for market participants. With $1 billion directed to AI startups in a single fiscal year, it influences early-stage funding significantly.
However, increased investments in private markets expose Jane Street to valuation risks, as private companies have less transparency than public market entities, Creating potential volatility in its $20 billion portfolio.