The Japanese stock market experienced a mixed performance today, with the Nikkei 225 index declining by 0.65%. Over the past five days, the index has seen a more significant drop of 1.39%, although it remains up by 8.23% over the last month, indicating a volatile yet upward trend in the longer term.
In terms of individual stock performance, NIDEC Corp. emerged as the top performer in the large-cap category, achieving a return of 10.54%. Conversely, Sanrio Co., Ltd. struggled, posting a decline of 4.31%. Among mid-cap stocks, Mitsubishi Gas Chemical Co., Inc. led with a return of 5.88%, while Sumitomo Pharma Co., Ltd. faced challenges, declining by 13.16%. The small-cap sector saw Mitsuba Corp. excel with a remarkable return of 26.0%, while Uchida Yoko Co., Ltd. suffered a staggering drop of 80.06%.

Overall, the advance-decline ratio across the market showed 1,657 stocks advancing against 1,938 declining, reflecting a challenging environment for investors. The ratios were similarly unfavorable in both large-cap and mid-cap categories, while small-cap stocks showed the most significant disparity with 684 advancing and 1,039 declining.