The Japanese stock market experienced a notable downturn today, with the Nikkei 225 index declining by 3.85%. Over the past five days, the index has seen a more significant drop of 6.4%, although it has managed a modest gain of 2.09% over the last 30 days. In terms of market performance, the advance-decline ratio indicates a challenging environment, with 895 stocks advancing compared to 2,647 declining, resulting in an overall ratio of 0.34x. Large-cap stocks showed a similar trend, with 58 advancing against 116 declining, yielding a ratio of 0.5x. Mid-cap stocks fared slightly better, with 101 advancing and 164 declining, while small-cap stocks faced the toughest conditions, with 416 advancing and 1,284 declining, reflecting a ratio of 0.32x. Among individual stocks, Toho Co., Ltd. emerged as the best performer in the large-cap category, posting a return of 6.8%. Conversely, Murata Manufacturing Co., Ltd. struggled, recording a decline of 10.15%. In the mid-cap sector, Sumitomo Pharma Co., Ltd. led with a return of 5.39%, while SUMCO Corp. faced a significant drop of 12.84%. The small-cap segment saw Nippon Care Supply Co., Ltd. excel with a return of 19.85%, while Fixstars Corp. lagged with a decline of 19.26%.