Sebi pushes for structural reforms in derivatives after Jane Street fallout: Report
Sebi is pushing for major reforms in India's booming derivatives market after exposing alleged manipulation by U.S. firm Jane Street. With retail participation soaring and losses mounting, Sebi seeks structural changes to ensure fairness. The regu...

Sebi is examining broader reforms to rein in what it describes as unfair practices in the booming options market, according to a Financial Times report published Monday. Sebi Chair Tuhin Kanta Pandey told the publication that despite recent interventions, “the volumes have come down but not to the extent that is desirable,” adding that “(the) derivatives market needs some structural reforms.”
India’s derivatives market has surged in scale, accounting for nearly 90% of global options trading volume in 2023, per industry body FIA. A Sebi study last month showed nine in ten individual traders lose money in this segment. The number of such traders more than doubled to 9.6 million over three years to March 2024, with total annual losses swelling from $4.7 billion to $12.2 billion.
Fallout from Jane Street probe
Sebi’s investigation had revealed that Jane Street amassed staggering profits of Rs 36,502.12 crore between January 2023 and March 2025. Of this, Rs 43,289 crore came from index options, while the firm incurred losses worth Rs 7,687 crore in the cash and futures segments. Sebi ordered Rs 4,840 crore of these gains to be frozen, citing them as unlawful.
The market watchdog alleged that Jane Street engaged in a sophisticated scheme to manipulate index movements, particularly Nifty and Bank Nifty, on expiry days. According to Sebi, the firm repeatedly ran “by far the largest risks in ‘cash equivalent’ terms in F&O,” and its pattern of trading was “prima facie being manipulative” due to the “intensity and sheer scale of their intervention.”
Sebi Chair rejects Jane Street’s defence
Tuhin Kanta Pandey rejected Jane Street’s defence that its strategy was mischaracterised. “Manipulation is where you are artificially creating arbitrage,” he told The Financial Times. “I know these guys are brilliant mathematicians and PhDs, but we can have PhDs from our side. We are not constrained.”
Jane Street, according to the Financial Times report, said in an internal memo that it plans to challenge Sebi’s order, which it described as “extremely inflammatory.” The U.S. based firm is reportedly engaging constructively with the regulator and has sought an extension to respond to the interim order issued on July 3.
Retail boom sparks regulatory pressure
According to the Financial Times, Sebi has introduced stricter entry norms and launched investor awareness initiatives in a bid to curb risky participation in the derivatives segment. However, the report quoted Pandey as saying, “I don’t think we are comfortable with the data yet, but we are putting out the data because we want people to see it.”
Also read | NSE reaches Rs 40 crore settlement with Sebi over data disclosure case
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