The S&P 500 index experienced a notable decline, falling by 1.57% today, with a 1.44% drop over the past five days and a more significant 2.07% decrease over the last 30 days. This downward trend reflects broader market challenges, as the advance-decline ratio indicates that 1,143 stocks advanced while 3,191 declined, resulting in a ratio of 0.36 across the market. In the large-cap segment, Equinix, Inc. emerged as the top performer with a return of 10.41%, while AppLovin Corp. struggled, posting a return of -19.68%. Mid-cap stocks saw US Foods Holding Corp. leading with a return of 13.4%, contrasted by Tyler Technologies, Inc., which reported a decline of 15.39%. The small-cap sector was dominated by Fastly, Inc., achieving an impressive return of 72.07%, while ICON plc faced significant challenges with a return of -39.85%. The advance-decline ratios for large-cap, mid-cap, and small-cap stocks were 0.42, 0.47, and 0.31, respectively, highlighting a challenging environment for investors across all market segments.