The FTSE 100 index experienced a decline of 0.55% today, despite a notable increase of 4.23% over the past 30 days. The market's performance reflected a challenging day for many stocks, with a total of 153 advancing against 273 declining, resulting in an overall advance-decline ratio of 0.56x. In the large-cap segment, British American Tobacco plc emerged as the top performer, posting a return of 2.97%. Conversely, Centrica Plc struggled, recording a decline of 5.15%. The mid-cap sector saw Ocado Group Plc leading with a return of 3.03%, while Bridgepoint Group Plc faced a setback with a drop of 3.84%. Small-cap stocks had a mixed performance, with Conduit Holdings Ltd. achieving a remarkable return of 7.62%, while Globalworth Real Estate Investments Ltd. suffered a significant decline of 15.55%. Overall, the market's breadth indicated a tougher environment for investors, particularly in the large and mid-cap categories, where the advance-decline ratios were notably lower at 0.4x and 0.49x, respectively.