Understanding the New Closing Auction Session (CAS) for F&O Stocks: What Every Investor Should Know
Starting 3 August 2026 the Indian stock market is making a change. This change is about how the Indian stock market figures out the closing price for stocks that are part of the Futures and Options segment. The Securities and Exchange Board of India has introduced something called the Closing Auction Session, for the Indian stock market. The main goal of the Closing Auction Session is to make the way the Indian stock market closes transparent more efficient and fairer for everyone who invests in the Indian stock market. If you are an investor or trader, understanding this change is essential because it affects how F&O stocks are traded during the last few minutes of the market. Let’s understand everything in simple language.