TechFlow News: On February 26, Caixin reported rumors that Chinese regulators are reviewing Jane Street’s trading behavior patterns in China’s ETF market. However, a person close to Jane Street stated: “We are completely unaware of these rumors and have no reason to believe they are true; these rumors should not be associated with Jane Street.” This week, Jane Street—as well as its co-founder and two employees—were charged with insider trading, fraud, and market manipulation. These alleged actions are also said to have accelerated the $40 billion collapse of TerraUSD (UST), a stablecoin, and its sister token Luna in 2022.
Founded in 1999, Jane Street is one of the world’s largest proprietary quantitative trading firms. In 2024, its net trading revenue exceeded $20 billion, with net profits nearing $13 billion. Unlike hedge funds, Jane Street does not accept external client capital, resulting in significantly lower disclosure obligations than traditional asset management firms—a structural feature that has long preserved its air of mystery.



