The S&P 500 index experienced a modest increase of 0.41% today, continuing its upward trend with a gain of 1.27% over the past five days and a notable rise of 3.53% in the last 30 days. This positive momentum reflects a mixed performance across market capitalizations.
In the large-cap segment, Pfizer Inc. emerged as the top performer, delivering a return of 6.83%. Conversely, MercadoLibre, Inc. struggled, posting a decline of 6.57%. The mid-cap sector saw IQVIA Holdings, Inc. leading with a return of 5.1%, while DraftKings, Inc. faced challenges, falling by 11.59%.

Small-cap stocks showed significant volatility, with United Natural Foods, Inc. achieving an impressive return of 18.45%, while IDT Corp. faced a steep decline of 18.38%.

Overall, the advance-decline ratio across the market indicated that 2,058 stocks advanced compared to 2,272 that declined, resulting in a ratio of 0.91x. In the large-cap category, the ratio was more favorable at 1.35x, with 134 advancing stocks against 99 declining. Mid-cap stocks also showed strength with a ratio of 1.26x, while small-cap stocks were nearly balanced at 1.01x.