The S&P 500 index experienced a decline of 0.87% today, marking a 1.86% drop over the past five days. However, the index has shown resilience with a 2.66% increase over the last 30 days. In the large-cap segment, MicroStrategy, Inc. emerged as the top performer with a return of 7.81%, while Walmart, Inc. struggled, posting a return of -9.21%. In the mid-cap category, CNH Industrial NV led with a return of 6.41%, contrasting with Zscaler, Inc., which saw a decline of 5.23%. The small-cap sector was dominated by Marathon Digital Holdings, Inc., achieving a remarkable return of 15.54%, while Advance Auto Parts, Inc. faced significant challenges, recording a return of -24.55%. Overall, the market's advance-decline ratio indicates a challenging environment, with 1,377 stocks advancing against 2,599 declining, resulting in a ratio of 0.53x. The large-cap stocks showed a particularly tough day, with only 68 advancing compared to 158 declining, yielding a ratio of 0.43x. The mid-cap and small-cap segments also faced headwinds, with ratios of 0.47x and 0.45x, respectively.