Tuhin Kanta Pandey, Chairman of the Securities and Exchange Board of India (SEBI)

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REUTERS/FRANCIS MASCARENHAS

The Securities ⁠and Exchange Board of India ​has not observed any manipulation in the ‌newly introduced closing auction session that determines ​closing price levels, its chairman said on Wednesday.The closing auction is a big market ‌structure reform in line with global standards, Tuhin Kanta Pandey ‌said at an event in Mumbai.“We ‌are ⁠considering all inputs to increase ⁠participation,” Pandey said, adding that any new system requires time to settle and attract more participation.The ​closing auction is ‌a separate 20-minute session introduced last week in which exchanges collect buy and sell orders to determine a stock’s ‌closing price at a level ​where the maximum volume can be executed.The mechanism, which replaced the ⁠previous method of using the average price of trades in the final 30 ‌minutes of regular trading, was introduced to provide a fairer and more transparent closing price and improve execution efficiency for large orders.The change has raised concerns about thinning participation and losses ‌for some market players.Mutual funds’ participation in ​the new system has risen from around 5%-6% on the first ⁠day to about 20%-25% since then, ⁠the regulator said.The reform was needed to reduce tracking error for ‌passive funds, he added. Published on August 12, 2026