The Japanese stock market showed a modest increase today, with the Nikkei 225 rising by 0.38%. Over the past 30 days, the index has experienced a significant gain of 10.74%. In the large-cap sector, Sumitomo Corp. emerged as the top performer, delivering a return of 17.12%, while Marubeni Corp. lagged behind with a decline of 5.22%. In the mid-cap category, TOTO Ltd. led the way with an impressive return of 18.43%, contrasting sharply with Alps Alpine Co., Ltd., which saw a drop of 14.96%. The small-cap segment was highlighted by Stream Media Corp., achieving a remarkable return of 33.33%, while Enplas Corp. faced a challenging day with a decline of 23.38%. Overall, the advance-decline ratio across the market indicated that 1,557 stocks advanced compared to 1,889 that declined, resulting in a ratio of 0.82. The large-cap stocks showed a more pronounced decline, with only 65 advancing against 111 declining, yielding a ratio of 0.59. Mid-cap stocks had 116 advancing and 152 declining, while small-cap stocks reported 774 advancing versus 900 declining.