Key Facts
- India: SEBI issued an ex parte interim order on August 19, 2026.
- Regulatory status: The allegations remain preliminary, and the order is not a final finding of liability.
- Immediate effect: Investing.com reported that Copthall and Mansi are restricted from India’s securities market while SEBI continues its investigation.
India’s securities regulator issued an interim order against Copthall Mauritius Investment and Mansi Share and Stock Broking over alleged SENSEX trading. The restrictions affect both firms now and matter because the trades involved India’s new system for setting official closing prices.
The Securities and Exchange Board of India issued the ex parte order on August 19. It concerns trading during BSE’s August 13 SENSEX closing-auction session.
“Ex parte” means SEBI issued the order without first hearing from the affected firms. An interim order imposes measures while a matter remains under review. It does not establish that either firm ultimately violated securities rules.
What SEBI alleges
Investing.com reported that SEBI accused Copthall of placing aggressive buy orders during the closing auction. The regulator separately alleged that Mansi placed large sell orders and later canceled much of that activity.
IANS reported that SEBI linked the firms’ opposing cash-market strategies to their separate derivatives positions. SEBI’s theory is that movements in the closing SENSEX level could affect the value of those positions.
These are SEBI’s preliminary allegations, not adjudicated facts.
What the order changes now
Investing.com reported that the interim measures restrict Copthall and Mansi from participating in India’s securities market pending further investigation. It also reported estimated gains of about 29.6 million rupees for Copthall and 7.2 million rupees for Mansi.
Investing.com reported that SEBI ordered the seizure of 36.8 million rupees from the firms. The measure is part of an interim order, not a final finding of profit or liability.
Why the closing auction matters
SEBI introduced its Closing Auction Session framework for phased use beginning in August 2026. The agency described it as a dedicated 20-minute auction designed to provide fair, equal and transparent access when determining closing prices.
A closing price can affect index values and derivatives that settle against them. IANS reported that the August 13 session occurred when weekly contracts tied to the SENSEX were expiring.
What happens next
Investing.com reported that the restraints remain in place while SEBI continues its investigation. Copthall and Mansi therefore cannot participate in India’s securities market while the restrictions remain in effect.
Because the order was issued ex parte, the firms had not presented their defenses before SEBI imposed the measures. Further proceedings will determine whether the preliminary allegations are sustained, changed or rejected.
Neither the Investing.com report nor the IANS report included a response from either firm.
