[Caixin: Rumors of Chinese Regulators Investigating Jane Street's Trading Patterns in the Chinese ETF Market] Deep Tide TechFlow reports that on February 26, according to Caixin, rumors have surfaced that Chinese regulators are investigating Jane Street's trading patterns in the Chinese 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, along with its co-founder and two employees, was accused of insider trading, fraud, and market manipulation. These actions were also alleged to have accelerated the $40 billion collapse of the TerraUSD (UST) stablecoin and its sister token Luna in 2022. Founded in 1999, Jane Street is one of the world's largest proprietary quantitative trading firms. Its net trading revenue in 2024 exceeded $20 billion, with net profits nearing $13 billion. Unlike hedge funds, Jane Street does not accept external client funds, which significantly reduces its disclosure obligations compared to traditional asset management institutions. This structure has allowed it to maintain a long-standing aura of secrecy.