The stock market experienced a mixed performance today, with the S&P 500 index declining by 0.38%. Despite this daily setback, the index has shown resilience over the past month, gaining 10.89%. In the large-cap sector, Fortinet, Inc. emerged as the top performer, achieving a return of 20.03%. Conversely, Zoetis, Inc. struggled, posting a decline of 21.5%. The mid-cap segment saw Datadog, Inc. leading with a remarkable return of 31.33%, while Insmed, Inc. faced challenges, recording a loss of 23.41%. Small-cap stocks also displayed volatility, with Fluence Energy, Inc. rising by 39.9%, while Fastly, Inc. suffered a significant drop of 38.38%. Overall, the advance-decline ratio across the market indicated that 1,695 stocks advanced compared to 2,464 that declined, resulting in a ratio of 0.69. In the large-cap category, 87 stocks advanced against 149 that declined, yielding a ratio of 0.58. Mid-cap stocks had 98 advancing and 162 declining, with a ratio of 0.60, while small-cap stocks saw 552 advancing versus 900 declining, resulting in a ratio of 0.61.