Overview

• Jane Street generated about $10.1 billion in second-quarter trading revenue and more than $17 billion in the first half of 2025, outpacing major banks.
• The firm now trades over 90,000 products across more than 240 exchanges, handled roughly 24% of US-listed ETF volume in 2024, and deploys about $53 billion of proprietary capital.
• Co-founder Rob Granieri, 53, holds no formal title and keeps a low profile inside the company, where even his employee-directory listing lacks a headshot.
• Jane Street is contesting accusations from an Indian regulator that followed a 2024 lawsuit over a departing team allegedly taking an “immensely valuable” strategy.
• Reports detail that Granieri was allegedly duped into financing weapons later used in a failed South Sudan coup, for which he was not charged, and describe unconventional spending on Burning Man and a Mississippi casino.