The S&P 500 index experienced a modest increase of 0.26% today, continuing its upward trajectory with a notable gain of 2.29% over the past 30 days. In the large-cap segment, Dell Technologies, Inc. emerged as the top performer, boasting a return of 9.87%, while MercadoLibre, Inc. lagged behind with a decline of 5.76%. In the mid-cap category, Credo Technology Group Holding Ltd. led the way with an impressive return of 8.26%, contrasting with AECOM, which saw a decrease of 8.96%. The small-cap sector showcased significant volatility, with Nebius Group NV achieving a remarkable return of 34.14%, while National Vision Holdings, Inc. faced a downturn of 11.56%. Overall, the market's advance-decline ratio indicates a healthy breadth, with 2,153 stocks advancing compared to 1,759 declining, resulting in a ratio of 1.22. Large-cap stocks showed a similar trend with 120 advancing and 103 declining, while mid-cap stocks had a slight imbalance with 118 advancing and 126 declining. Small-cap stocks, however, demonstrated strength with 794 advancing against 559 declining, yielding a ratio of 1.42.