The S&P 500 index experienced a modest increase of 0.06% today, continuing its upward trajectory with a notable rise of 1.81% over the past five days and an impressive 4.55% gain over the last month. This performance reflects a mixed sentiment across the market, with a total of 2,220 stocks advancing compared to 2,287 declining, resulting in an advance-decline ratio of 0.97.
In the large-cap segment, Advanced Micro Devices, Inc. emerged as the top performer, boasting a return of 9.0%. Conversely, SLB struggled, recording a decline of 4.09%. Mid-cap stocks saw Anglogold Ashanti Plc leading with a return of 7.28%, while Zscaler, Inc. lagged behind with a drop of 4.29%. Among small-cap stocks, BigBear.ai Holdings, Inc. stood out with an impressive return of 18.32%, while Evolent Health, Inc. faced challenges, declining by 11.71%.

The advance-decline ratios varied across market caps, with large caps showing a stronger performance at 1.6x, mid caps at 1.33x, and small caps nearly balanced at 1.0x. This data highlights the ongoing volatility and selective strength within different segments of the market.