BSE shares jump 4.5% after CEO says NSE cannot self-list post-IPO

BSE shares rose 4.5% on September 3 after its CEO said the National Stock Exchange (NSE) cannot list on its own platform following its mega IPO, citing regulatory restrictions on self-trading. Speaking to CNBC-TV18, BSE MD & CEO Sundararaman Ramamurthy said NSE has confirmed no addendum will be issued for self-trading along with its offer document. He noted BSE was denied similar permission in 2017, and self-listing is not permitted under current rules. Reports suggested NSE could trade via the "permitted to trade" category after listing on BSE, potentially impacting BSE's FY27 earnings by 1-2 percent. Ramamurthy also discussed the new Closing Auction Session, which has reduced index option volumes due to thin liquidity, with dealer feedback being collected for regulators.