SEBI has restricted Copthall Mauritius, a JPMorgan unit, and Mansi Share and Stock Broking from market access following allegations of manipulating the Sensex closing price. The regulator has impounded ₹3.68 crore in alleged wrongful gains tied to the new closing auction system introduced in August 2026.
The Securities and Exchange Board of India (SEBI) has issued an interim order against Copthall Mauritius Investment Ltd, a unit of JPMorgan Chase & Co., and Mansi Share and Stock Broking Ltd. The regulator alleges that both entities engaged in market manipulation during the Closing Auction Session (CAS) on August 13, 2026, which coincided with a weekly options expiry day.
SEBI’s investigation focuses on trades executed during this closing auction window. The regulator claims that these entities placed large, aggressive, and strategically timed orders—many of which were later cancelled—to artificially inflate the BSE Sensex Indicative Equilibrium Price. According to the regulatory order, this activity was allegedly designed to benefit the firms' positions in the derivatives market.
In response to these findings, SEBI has impounded approximately ₹3.68 crore, which the regulator describes as unlawful gains. Additionally, both companies are currently barred from accessing the securities market and cannot participate in the closing auction session until further orders are issued. This regulatory action is significant as it concerns the Closing Auction Session, a new mechanism introduced by Indian exchanges on August 3, 2026, to improve the accuracy and transparency of closing prices.
Copthall Mauritius operates primarily as an investment conduit for global clients and is distinct from JPMorgan India Pvt. Ltd., which manages the firm's local stockbroking and merchant banking services. The current regulatory restrictions specifically target the Mauritius-based unit and do not impact the broader operations of JPMorgan’s local Indian entities.
Reports indicate that Copthall Mauritius is considering a request for clarification regarding the regulator's findings rather than pursuing an immediate appeal. This approach suggests an intent to engage with the regulator to resolve the compliance concerns, which the firm may categorize as technical in nature.
For investors and market participants, the case highlights the regulator's increased scrutiny of the new auction mechanism and its readiness to intervene when potential irregularities are detected. The immediate impact of this order is limited to the two entities involved, but it underscores the strict compliance environment for foreign portfolio investors (FPIs). Investors may track future developments, including the formal response from the companies, the final outcome of the SEBI probe, and any potential policy adjustments to the closing auction system that might emerge from this investigation.