The S&P 500 index experienced a notable increase of 1.79% today, contributing to a robust 4.02% rise over the past five days and a 3.38% gain over the last month. This upward momentum reflects a strong performance across various market capitalizations. In the large-cap segment, Marvell Technology, Inc. emerged as the standout performer with a return of 12.81%, while Chipotle Mexican Grill, Inc. faced challenges, posting a decline of 9.72%. Mid-cap stocks saw Zebra Technologies Corp. leading with an impressive return of 26.47%, contrasted by NRG Energy, Inc., which fell by 15.48%. The small-cap sector was dominated by Wayfair, Inc., achieving a remarkable return of 29.97%, while AdaptHealth Corp. struggled significantly, declining by 38.04%. Overall, the advance-decline ratio across the market indicated a healthy breadth, with 2,781 stocks advancing compared to 1,094 declining, resulting in a ratio of 2.54. This positive trend was mirrored in the large-cap, mid-cap, and small-cap categories, suggesting a broad-based rally in the market.