India’s market watchdog SEBI has intensified its scrutiny over the derivatives market following serious charges against trading firm Jane Street, as per the SEBI Chairman. The regulator barred the firm from market access and seized $567 million, marking a pivotal move in addressing concerns around index manipulation.
SEBI has taken strict action against US-based trading house Jane Street for allegedly manipulating stock indexes within the Indian markets. According to SEBI’s investigation, the firm acquired large volumes of Bank Nifty constituent stocks in both cash and futures markets during early trading hours. Simultaneously, it created significant short positions in index options. Later, Jane Street reversed its trades to benefit from the movement, violating fair market conduct.
India has emerged as the world’s largest equity derivatives market, contributing to nearly 60% of the 7.3 billion global transactions recorded in April. The rapid spike in derivatives trading, especially among retail participants, has raised red flags. In response, SEBI has already moved to curtail the frequency of contract expiries and increase lot sizes as deterrents. Chairperson Tuhin Kanta Pandey noted that though high-profile cases are rare, the need for vigilance remains constant.
In light of the incident, SEBI is reinforcing its real-time monitoring systems to better detect anomalies within index-linked trades. The regulator is expected to expand the Jane Street investigation across other exchanges and stock indexes. This will include closer scrutiny of positions involving large volumes and timing-based strategies that mimic manipulation patterns.
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The action against Jane Street sends a strong message about SEBI’s zero-tolerance approach. As derivatives trading grows, safeguarding market credibility is crucial. The tightening of rules and surveillance aims to deter unfair practices, ensuring more transparency and stability in India’s capital markets.
SEBI’s clampdown on Jane Street underscores its commitment to preserving market integrity amidst India’s derivatives boom. By tightening controls and increasing transparency, the regulator aims to foster more robust and fair trading environments for all participants.
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Published on: Jul 8, 2025, 4:03 PM IST
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