Negative impactStocks
Sensex’s 2,200-Point CAS Swing Triggers SEBI Scrutiny: Did India’s New Closing System Create a Liquidity Trap?
Coin Edition 1d ago·29 Aug 2026, 11:53 am
The Bombay Stock Exchange recently shifted to a new closing mechanism for its benchmark indices, the Sensex and Nifty 50. This system, which uses a weighted average of trades over a 15-minute window, replaced the previous method of taking the last trade price. The change was intended to ensure a more accurate reflection of market value and reduce volatility during the final minutes of trading.
However, the new system has led to a sharp drop in trading volumes during this critical window. Market participants have observed that the weighted average price often settles significantly lower than the last traded price, creating a potential "liquidity trap." This disconnect has raised concerns among investors about the reliability of the final price and the overall efficiency of the market close.
Regulators are now closely monitoring the situation to determine if the new system is functioning as intended. Investors should watch for any official statements from the exchange or SEBI regarding potential adjustments to the methodology. The focus is on whether the changes will restore normal trading activity and ensure a fair price discovery process at the market close.
Excerpt from Coin Edition
Get our latest news first. Add us as your Preferred Source on Google and tap "Star" to prioritize our updates. Sensex plunged over 2,000 points before recovering nearly 2,000 during the CAS. Thin BSE liquidity may have amplified the sharp move, say market participants. SEBI faces questions over CAS, but they do not…Read the original at Coin Edition
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- Category: Stocks.
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