The S&P 500 index experienced a modest increase of 0.54% today, continuing its upward trajectory with a notable rise of 1.72% over the past 30 days. This positive momentum reflects a broader trend in the market, where advancing stocks outnumbered declining ones, with a total of 2,705 stocks advancing compared to 1,682 declining, resulting in an overall advance-decline ratio of 1.61. In the large-cap segment, Corning, Inc. emerged as the top performer, achieving a return of 6.89%, while Robinhood Markets, Inc. struggled, posting a decline of 9.62%. Mid-cap stocks saw Carnival Corp. leading with an impressive return of 8.09%, whereas EQT Corp. faced challenges with a drop of 5.16%. Small-cap stocks were highlighted by Twist Bioscience Corp., which surged by 13.98%, while Yext, Inc. faced significant losses, declining by 23.6%. The advance-decline ratios varied across market capitalizations, with large-cap stocks at 1.66, mid-cap at 1.35, and small-cap stocks leading with a ratio of 1.85, indicating a strong performance among smaller companies.