Jane Street to SAT: SEBI Shifted Goalposts, Seeks Order Logs

Jane Street Challenges SEBI’s Regulatory Approach in SAT Hearing

High-frequency trading firm Jane Street is pushing back against SEBI’s regulatory actions, seeking critical order logs to support its defense.

Background of the Dispute

The ongoing legal tussle between Jane Street and SEBI has its roots in an interim order issued by the regulator in July 2025. SEBI accused the US-based trading firm of manipulating the Bank Nifty index through a complex two-part trading strategy, allegedly resulting in unlawful gains of approximately ₹4,843 crore. As a consequence, Jane Street and its affiliates were temporarily barred from trading in India, a restriction that was later lifted after the firm deposited the disputed amount into an escrow account.

Jane Street’s Request for Order Logs

During the recent hearings at the Securities Appellate Tribunal (SAT), Jane Street’s counsel emphasized the necessity of obtaining order logs from SEBI. These logs would include details such as counterparties, timestamps, prices, and quantities, which the firm argues are crucial for mounting an effective defense. Jane Street contends that SEBI has not provided adequate clarity on what constitutes “large” positions, particularly following a caution notice from the National Stock Exchange (NSE) in February 2025.

SEBI’s Position and Response

In response, SEBI’s counsel argued that the regulator had already provided the information it deemed relevant and that the counterparty details were redacted as they did not pertain to any allegations of collusion. SEBI maintained that the investigation is still ongoing, and thus, the principles of natural justice do not necessitate the disclosure of every document requested by Jane Street. The regulator reiterated that it had not relied on the order logs in its initial findings, suggesting that the request for these logs was more of a “fishing” expedition than a legitimate inquiry.

Implications for High-Frequency Trading

The outcome of this case could have significant implications for high-frequency trading firms operating in India. If SEBI’s regulatory stance is upheld, it may set a precedent that could affect how trading strategies are monitored and regulated in the future. The case also highlights the tension between regulatory oversight and the operational needs of trading firms, particularly in a rapidly evolving market landscape.

Key Highlights

• Jane Street seeks order logs from SEBI to support its defense against market manipulation allegations.
• SEBI argues it has provided all relevant information and that the investigation is ongoing.
• The case stems from allegations of unlawful gains of ₹4,843 crore linked to the Bank Nifty index.
• The tribunal may reconvene on October 21 to further discuss the matter.
• The outcome could impact the regulatory landscape for high-frequency trading in India.

Investor Note: The ongoing proceedings between Jane Street and SEBI highlight the complexities of regulatory compliance in high-frequency trading. Investors should monitor the developments closely, as the tribunal’s decision may influence trading strategies and regulatory practices in the Indian market.