The Japanese stock market is experiencing a notable downturn, with the Nikkei 225 index declining by 3.61% today. Over the past five days, the index has seen a significant drop of 7.82%, while its performance over the last 30 days shows a slight decrease of 0.09%. In terms of market performance, the advance-decline ratio indicates a challenging environment, with only 259 stocks advancing compared to 3,466 declining, resulting in a ratio of 0.07 across the market. Large-cap stocks are particularly struggling, with just 26 advancing against 150 declining, yielding a ratio of 0.17. Mid-cap stocks show a similar trend, with 42 advancing and 228 declining, while small-cap stocks have 100 advancing versus 1,666 declining, reflecting a ratio of 0.06. Among individual stocks, NIDEC Corp. stands out as the best performer in the large-cap category, achieving a return of 6.8%. Conversely, Kyowa Kirin Co., Ltd. has faced the steepest decline, down 18.31%. In the mid-cap sector, Money Forward, Inc. leads with a return of 4.17%, while MITSUI E&S Co., Ltd. has dropped by 11.25%. Small-cap LAND Co., Ltd. has gained 11.11%, while Nittetsu Mining Co., Ltd. has seen a decline of 15.44%.