BSE Share Price Rises 4.5% Today After SEBI Flags Changes To Derivatives Settlement Framework

Shares of BSE climbed as much as 4.5% in morning trade on September 4, after SEBI said it is going to review the methodology used to settle derivatives contracts, after concerns were raised over the exchange's newly introduced Closing Auction Session (CAS).

BSE Shares Today

The counter opened at Rs 3,400, higher than its previous close of Rs 3,306, and touched an intraday high of Rs 3,474, a gain of over 5%, before paring some gains to trade 4.5% up at Rs 3,453.8 apiece. At around 12 noon, BSE shares were trading at Rs. 3431 per share up by 3.78%.

Reason Behind SEBI Stepping In

SEBI's CAS mechanism, which was rolled out on August 3 to find out the official closing prices of stocks, is facing criticism from market participants. People have pointed to multiple issues with the new system, which includes difference in index closing price across exchanges, sudden swings in options prices, and some concerns that the system could be misused to manipulate prices, especially on derivative expiry days.

Acting on the feedback, SEBI said it is now considering changes to how settlement prices for derivative contracts are calculated. The market regulator said that it is planning to release a discussion paper within a week, and laying out possible modifications to the framework.
The major trigger for the current round of scrutiny came on Thursday, when the Sensex's indicative closing level briefly dropped 2.5%, according to BSE data. It suddenly pushed up the prices of some Sensex put options and raised concerns about how low trading volumes during the closing auction can cause sharp price swings.

The irony is that CAS was introduced specifically to bring more discipline and transparency to closing-price discovery, however the rollout has itself become a source of volatility.

BSE Financials

BSE in the March to June quarter reported a 62% YoY jump in consolidated net profit to around Rs. 872-874 crore, up from Rs. 538 crore in the previous quarter last year.

Revenue from operations rose sharply too, up about 63% YoY to roughly Rs. 1,566 crore from around Rs. 1,037 crore a year earlier. Profit before tax stood at Rs .1,144.12 crore versus Rs. 685.11 crore in Q1 FY26, a 67% YoY jump, while EPS rose to Rs. 21.22 from Rs. 13.09. EBITDA margin came in around 68.4%.

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