BSE’s weekly Sensex options relaunch has quickly upended the dominance of NSE in index derivatives. Exchange data shows average daily Sensex options premium turnover jumped from about Rs 2 crore in May 2023 to nearly Rs 33,000 crore by April 2026, alongside a surge in notional turnover. The push—via weekly expiry products, lower transaction costs, and broker incentives—drew retail and algorithmic traders, boosting BSE revenue, profits, and market share even as SEBI tightened derivatives rules after retail losses.
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