Learn | Markets | News Closing Auction Session (CAS): How India’s New Closing Price Mechanism Works ByKathan Dhagai 10 September, 202610 September, 2026 India’s Closing Auction Session (CAS) has changed how the closing price is determined for eligible stocks. Here’s how the 3:15 pm–3:35 pm auction works, why SEBI introduced it, and what investors need to know.
