The S&P 500 index experienced a decline of 1.04% today, continuing a downward trend with a decrease of 0.63% over the past five days and 1.13% over the last 30 days. This overall market performance reflects a challenging environment for investors, with a significant number of stocks declining. In terms of market capitalization, the advance-decline ratio indicates that 1,201 stocks advanced while 3,138 stocks declined, resulting in a ratio of 0.38 across the market. Large-cap stocks showed a similar trend, with 81 advancing and 151 declining, yielding a ratio of 0.54. Mid-cap stocks fared slightly worse, with 76 advancing against 185 declining (0.41 ratio), while small-cap stocks had 343 advancing and 1,112 declining, resulting in a ratio of 0.31. Among the notable performers, PayPal Holdings, Inc. led large-cap stocks with a return of 5.76%, while International Business Machines Corp. struggled, posting a return of -13.15%. In the mid-cap sector, Anglogold Ashanti Plc gained 6.01%, contrasting with MongoDB, Inc., which fell by 11.37%. Small-cap stocks saw Arcellx, Inc. soar by 77.43%, while Stepan Co. faced a decline of 20.38%.