At the heart of the controversy is Jane Street’s aggressive trading in the derivatives (futures) segment, where the firm executed trades designed not just to profit, but to sway the market itself. Here's how.

SEBI has temporarily barred Jane Street from the Indian stock market and impounded ₹4,840 crore for alleged index manipulation, raising concerns about retail traders' vulnerabilities in derivatives trading.

These firms have been told to deposit Rs 4,843.5 crore, which SEBI says are illegal profits made through trading in index options on Indian stock exchanges. According to SEBI, Jane Street earned Rs 43,289.33 crore from such trades between January 1, 2023, and March 31, 2025.