The introduction of the Closing Auction Session (CAS) has added a new dimension to the final minutes of trading in eligible F&O stocks. Since August 3, continuous trading in these stocks ends at 3:15 p.m., followed by a 20-minute auction in which buy and sell orders are pooled and matched to determine the official closing price. While the closing mechanism has changed, the bigger story for capital-market stocks over the past month is the sharp divergence in their performance.
Capital-market stocks saw a mixed performance over the month, with Motilal Oswal Financial Services and MCX emerging as the biggest gainers, both rising over 21%. On the other hand, Indian Energy Exchange, BSE, HDFC AMC and CAMS declined, with losses ranging from around 6% to 10%.
