The Indian stock market experienced a challenging session today, with the Sensex opening 91.42 points higher before declining by 251.70 points, ultimately trading at 84,790.67, reflecting a loss of 0.19%. The index remains just 0.59% shy of its 52-week high of 85,290.06. The market breadth was notably negative, with only one sector, NIFTYMEDIA, advancing by 0.19%, while 35 sectors, led by NIFTYMETAL, which fell by 0.83%, faced declines. The advance-decline ratio across the BSE500 was stark, with 108 stocks advancing against 389 declining, resulting in a ratio of 0.28x. The BSE100, SMLCAP, and MIDCAP indices also saw declines of 0.2%, 0.34%, and 0.36%, respectively. Among the top gainers in the BSE500, Sundram Fasteners led with a rise of 6.27%, followed by Aster DM Healthcare at 4.40% and Westlife Food at 3.48%. Conversely, Kaynes Technology was the top loser, down 4.62%, followed by Emcure Pharma and Narayana Hrudaya, which fell by 2.97% and 2.47%, respectively. In the large-cap segment, Max Healthcare gained 1.70%, while Tube Investments dropped by 1.31%. The small-cap sector saw Fairchem Organic surge by 13.20%, but Fischer Medical faced a significant decline of 9.92%.