| 2026 |
| 03/06 | 4,150 | 4,200 | 4,075 | 4,165 | -0.72% | 106,400 | 1106億3448万 | +6.55% |
| 03/05 | 4,220 | 4,320 | 4,145 | 4,195 | +4.09% | 174,000 | 1114億3137万 | +7.7% |
| 03/04 | 4,200 | 4,230 | 3,985 | 4,030 | -6.6% | 293,900 | 1070億4849万 | +3.89% |
| 03/04 | (空売り報告)JPM Securities Japan Co Ltd. 153,999株(0.57%)新規 |
| 03/03 | 4,395 | 4,590 | 4,280 | 4,315 | -0.58% | 339,100 | 1146億1892万 | +11.53% |
| 03/02 | 4,070 | 4,340 | 4,060 | 4,340 | +4.7% | 251,200 | 1152億8299万 | +12.64% |
| 02/27 | 4,030 | 4,170 | 4,015 | 4,145 | +1.1% | 184,800 | 1101億322万 | +8.06% |
| 02/26 | 3,995 | 4,140 | 3,980 | 4,100 | +4.06% | 226,500 | 1089億789万 | +7.25% |
| 02/25 | 3,850 | 3,985 | 3,835 | 3,940 | +2.87% | 139,500 | 1046億5783万 | +3.44% |
| 02/24 | 3,730 | 3,880 | 3,730 | 3,830 | +1.32% | 268,700 | 1017億3591万 | +0.63% |
| 02/20 | 3,650 | 3,860 | 3,640 | 3,780 | +2.58% | 184,200 | 1003億9113万 | -0.81% |
| 02/19 | 3,670 | 3,850 | 3,620 | 3,685 | +2.36% | 417,200 | 978億6807万 | -3.41% |
| 02/18 | (IR情報)15:30 役員人事に関するお知らせ |
| 02/18 | 3,500 | 3,625 | 3,455 | 3,600 | +3.3% | 181,700 | 956億1060万 | -5.81% |
| 02/17 | 3,595 | 3,650 | 3,415 | 3,485 | -2.52% | 272,200 | 925億5637万 | -9.01% |
| 02/16 | (IR情報)15:30 2025年12月期決算説明会書き起こし公開のお知らせ |
| 02/16 | 3,755 | 3,810 | 3,555 | 3,575 | -9.84% | 380,600 | 949億4664万 | -6.93% |
| 02/13 | (IR情報)15:30 2025年12月期決算説明資料 |
| 02/13 | (IR情報)15:30 (開示事項の経過)中国連結子会社の株式一部売却のお知らせ |
| 02/13 | (IR情報)15:30 剰余金の配当に関するお知らせ |
| 02/13 | (IR情報)15:30 2025年12月期決算短信〔日本基準〕(連結) |
| 02/13 | 4,100 | 4,120 | 3,945 | 3,965 | -3.29% | 164,300 | 1053億446万 | +3.04% |
| 02/12 | 4,010 | 4,250 | 4,010 | 4,100 | +3.8% | 227,700 | 1088億8985万 | +6.74% |
| 02/10 | (IR情報)18:00 当社が計画する蓄電池事業が経済産業省の補助事業に採択されました |
| 02/10 | (IR情報)18:00 中国連結子会社の株式一部売却のお知らせ |
| 02/10 | 3,880 | 3,995 | 3,880 | 3,950 | +2.46% | 205,500 | 1049億608万 | +3.11% |
| 02/09 | 3,925 | 3,930 | 3,815 | 3,855 | +1.72% | 132,700 | 1023億8302万 | +0.73% |
| 02/06 | 3,805 | 3,810 | 3,725 | 3,790 | -0.52% | 93,000 | 1006億5672万 | -0.89% |
| 02/05 | 3,820 | 3,860 | 3,785 | 3,810 | -0.26% | 90,700 | 1011億8789万 | -0.39% |
| 02/04 | 3,860 | 3,875 | 3,820 | 3,820 | -2.43% | 85,100 | 1014億5347万 | -0.13% |
| 02/03 | 3,820 | 3,930 | 3,790 | 3,915 | +4.4% | 150,500 | 1039億7653万 | +2.38% |
| 02/02 | 3,760 | 3,915 | 3,730 | 3,750 | -1.45% | 174,600 | 995億9438万 | -1.83% |
| 01/30 | 3,785 | 3,815 | 3,740 | 3,805 | +0.93% | 148,800 | 1010億5510万 | -0.42% |
| 01/29 | 3,815 | 3,835 | 3,710 | 3,770 | -1.18% | 108,000 | 1001億2555万 | -1.18% |
| 01/28 | (IR情報)13:00 連結子会社の代表取締役異動に関するお知らせ |
| 01/28 | 3,840 | 3,845 | 3,745 | 3,815 | +0.53% | 95,800 | 1013億2068万 | +0.21% |
| 01/27 | 3,785 | 3,835 | 3,785 | 3,795 | -0.13% | 80,400 | 1007億8951万 | -0.03% |
| 01/26 | 3,790 | 3,835 | 3,765 | 3,800 | -2.56% | 91,400 | 1009億2230万 | +0.26% |
| 01/23 | 3,900 | 3,950 | 3,860 | 3,900 | -0.38% | 71,900 | 1035億7815万 | +3.17% |
| 01/22 | 3,885 | 3,965 | 3,850 | 3,915 | +2.62% | 130,000 | 1039億7653万 | +3.82% |
| 01/21 | 3,700 | 3,850 | 3,695 | 3,815 | +1.73% | 81,900 | 1011億2993万 | +1.46% |
| 01/20 | 3,860 | 3,880 | 3,750 | 3,750 | -3.35% | 116,100 | 994億688万 | -0.13% |
| 01/19 | (IR情報)16:30 人事異動に関するお知らせ |
| 01/19 | 3,935 | 3,935 | 3,865 | 3,880 | -1.77% | 72,700 | 1028億5298万 | +3.33% |
| 01/16 | 3,860 | 3,960 | 3,855 | 3,950 | +1.54% | 88,900 | 1047億858万 | +5.39% |
| 01/15 | 3,790 | 3,890 | 3,755 | 3,890 | +1.04% | 93,400 | 1031億1807万 | +4.04% |
| 01/14 | 3,825 | 3,880 | 3,825 | 3,850 | +1.05% | 88,400 | 1020億5773万 | +3.24% |
| 01/13 | 3,825 | 3,850 | 3,760 | 3,810 | +1.46% | 168,000 | 1009億9739万 | +2.42% |
| 01/09 | (IR情報)12:00 機関投資家・証券アナリスト向け 2025年12月期 通期 Web決算説明会のご案内 |
| 01/09 | 3,745 | 3,825 | 3,720 | 3,755 | +0.27% | 98,300 | 995億3942万 | +1.24% |
| 01/08 | 3,750 | 3,810 | 3,735 | 3,745 | -0.93% | 87,200 | 992億7433万 | +1.16% |
| 01/07 | 3,870 | 3,930 | 3,740 | 3,780 | -1.82% | 160,500 | 1002億213万 | +2.3% |
| 01/06 | 3,900 | 3,925 | 3,825 | 3,850 | -0.26% | 118,300 | 1020億5773万 | +4.36% |
| 01/05 | 3,825 | 3,885 | 3,800 | 3,860 | +2.39% | 125,900 | 1023億2281万 | +4.89% |
| 2025 |
| 12/30 | 3,780 | 3,835 | 3,725 | 3,770 | -1.18% | 140,800 | 999億3705万 | +2.64% |
| 12/29 | 3,800 | 3,835 | 3,780 | 3,815 | -0.13% | 86,400 | 1011億2993万 | +4.09% |
| 12/26 | 3,825 | 3,845 | 3,805 | 3,820 | +0.39% | 46,700 | 1012億6247万 | +4.49% |
| 12/25 | 3,770 | 3,840 | 3,745 | 3,805 | +0.13% | 41,200 | 1008億6485万 | +4.19% |
| 12/24 | 3,755 | 3,865 | 3,735 | 3,800 | +0.8% | 71,400 | 1007億3230万 | +4.34% |
| 12/23 | 3,665 | 3,800 | 3,665 | 3,770 | +2.86% | 190,900 | 999億3705万 | +3.51% |
| 12/22 | 3,630 | 3,710 | 3,630 | 3,665 | +2.95% | 82,600 | 970億8035万 | +0.52% |
| 12/19 | (IR情報)16:00 持株会社体制への移行の中止に関するお知らせ |
| 12/19 | 3,555 | 3,590 | 3,520 | 3,560 | +0.14% | 76,800 | 942億9906万 | -2.6% |
| 12/18 | 3,600 | 3,615 | 3,555 | 3,555 | -2.2% | 77,200 | 941億6662万 | -2.95% |
| 12/17 | 3,600 | 3,665 | 3,545 | 3,635 | +2.11% | 118,900 | 962億8570万 | -1.03% |
| 12/16 | 3,645 | 3,650 | 3,550 | 3,560 | -2.86% | 81,200 | 942億9906万 | -3.34% |
| 12/15 | 3,640 | 3,670 | 3,590 | 3,665 | +0.27% | 60,600 | 970億8035万 | -0.81% |
| 12/12 | 3,690 | 3,725 | 3,645 | 3,655 | -0.68% | 54,200 | 968億1547万 | -1.22% |
| 12/11 | 3,750 | 3,770 | 3,670 | 3,680 | -1.6% | 61,400 | 974億7768万 | -0.7% |
| 12/10 | 3,710 | 3,760 | 3,685 | 3,740 | +0.94% | 75,800 | 990億6699万 | +0.86% |
| 12/09 | 3,700 | 3,745 | 3,680 | 3,705 | -1.07% | 82,600 | 981億3989万 | -0.19% |
| 12/08 | 3,665 | 3,755 | 3,660 | 3,745 | +3.03% | 102,600 | 991億9943万 | +0.73% |
| 12/05 | 3,585 | 3,670 | 3,585 | 3,635 | +0.69% | 61,700 | 962億8570万 | -2.31% |
| 12/04 | 3,575 | 3,650 | 3,575 | 3,610 | +1.69% | 84,900 | 956億2349万 | -3.17% |
| 12/03 | 3,570 | 3,655 | 3,550 | 3,550 | -0.56% | 80,000 | 940億3418万 | -4.9% |
| 12/02 | 3,625 | 3,645 | 3,570 | 3,570 | -0.42% | 108,900 | 945億6395万 | -4.72% |
| 12/01 | (IR情報)15:30 (開示事項の変更)江西盛泰精密光学有限公司の第三者割当増資引受における契約締結予定日及び第三者割当増資引受予定日の再延長に関するお知らせ |
| 12/01 | 3,690 | 3,695 | 3,580 | 3,585 | -1.24% | 86,800 | 949億6127万 | -4.68% |
| 11/28 | 3,630 | 3,665 | 3,565 | 3,630 | +0.14% | 114,900 | 961億5326万 | -3.61% |
| 11/27 | 3,655 | 3,675 | 3,590 | 3,625 | -1.36% | 99,600 | 960億2081万 | -3.97% |
| 11/26 | 3,645 | 3,685 | 3,605 | 3,675 | +2.8% | 72,700 | 973億4524万 | -2.83% |
| 11/25 | 3,665 | 3,685 | 3,575 | 3,575 | -0.56% | 96,000 | 946億9639万 | -5.45% |
| 11/21 | 3,560 | 3,630 | 3,555 | 3,595 | -2.84% | 128,000 | 952億2616万 | -4.89% |
| 11/20 | 3,715 | 3,775 | 3,635 | 3,700 | +3.5% | 132,400 | 979億6897万 | -2.19% |
| 11/19 | 3,735 | 3,750 | 3,560 | 3,575 | -5.55% | 158,800 | 946億5921万 | -5.4% |
| 11/18 | 3,815 | 3,860 | 3,765 | 3,785 | -2.57% | 95,500 | 1002億1961万 | +0.19% |
| 11/17 | 3,855 | 3,890 | 3,705 | 3,885 | 0% | 220,300 | 1028億6742万 | +3% |
| 11/14 | 3,800 | 3,925 | 3,750 | 3,885 | +3.74% | 225,400 | 1028億6742万 | +3.11% |
| 11/13 | (IR情報)17:00 2025年12月期第3四半期決算説明質疑応答集 |
| 11/13 | (IR情報)16:00 2025年12月期第3四半期決算説明資料 |
| 11/13 | (IR情報)16:00 2025年12月期第3四半期決算短信〔日本基準〕(連結) |
| 11/13 | 3,845 | 3,845 | 3,745 | 3,745 | -2.09% | 207,300 | 991億6049万 | -0.43% |
| 11/12 | 3,830 | 3,880 | 3,815 | 3,825 | -1.54% | 127,600 | 1012億7874万 | +1.7% |
| 11/11 | 3,900 | 3,925 | 3,825 | 3,885 | +0.78% | 119,700 | 1028億6742万 | +3.27% |
| 11/10 | 3,805 | 3,880 | 3,765 | 3,855 | +1.98% | 103,400 | 1020億7308万 | +2.64% |
| 11/07 | 3,750 | 3,800 | 3,725 | 3,780 | -1.05% | 99,200 | 1000億8722万 | +0.85% |
| 11/06 | 3,770 | 3,855 | 3,735 | 3,820 | +2.96% | 136,800 | 1011億4634万 | +2.14% |
| 11/05 | 3,780 | 3,800 | 3,555 | 3,710 | -3.39% | 215,100 | 982億3375万 | -0.67% |
| 11/04 | 3,820 | 3,945 | 3,820 | 3,840 | -0.39% | 132,500 | 1016億7591万 | +2.78% |
| 10/31 | 3,855 | 3,910 | 3,810 | 3,855 | +0.52% | 74,000 | 1020億7308万 | +3.27% |
| 10/30 | 3,795 | 3,895 | 3,750 | 3,835 | +0.66% | 150,800 | 1015億4352万 | +2.76% |
| 10/29 | 3,805 | 3,865 | 3,745 | 3,810 | +2.01% | 135,700 | 1008億8156万 | +2.04% |
| 10/28 | 3,870 | 3,880 | 3,730 | 3,735 | -4.23% | 103,200 | 988億9571万 | -0.11% |
| 10/27 | 3,950 | 4,005 | 3,880 | 3,900 | -0.26% | 103,100 | 1032億6459万 | +4.11% |
| 10/24 | 3,780 | 3,910 | 3,780 | 3,910 | +4.97% | 135,200 | 1035億2937万 | +4.21% |
| 10/23 | 3,790 | 3,845 | 3,710 | 3,725 | -3.12% | 101,300 | 986億3092万 | -0.64% |
| 10/22 | 3,775 | 3,865 | 3,775 | 3,845 | +0.92% | 99,400 | 1018億830万 | +2.4% |
| 10/21 | 3,700 | 3,900 | 3,690 | 3,810 | +4.38% | 210,400 | 1008億4651万 | +1.49% |
| 10/20 | 3,620 | 3,680 | 3,560 | 3,650 | +2.82% | 132,300 | 966億1149万 | -2.77% |
| 10/17 | 3,630 | 3,645 | 3,540 | 3,550 | -3.27% | 69,600 | 939億6460万 | -5.48% |
| 10/16 | 3,650 | 3,695 | 3,630 | 3,670 | +2.37% | 66,700 | 971億4087万 | -2.42% |
| 10/15 | 3,545 | 3,605 | 3,540 | 3,585 | +0.84% | 105,400 | 948億9101万 | -4.68% |
| 10/14 | (5%ルール)アール・エス・テック・ホンコン・リミテッド(R.S…(35.9%)方永義(8.06%) |
| 10/14 | 3,605 | 3,685 | 3,550 | 3,555 | -2.07% | 128,900 | 940億9694万 | -5.55% |
| 10/10 | 3,690 | 3,730 | 3,620 | 3,630 | -4.35% | 98,000 | 960億8211万 | -3.56% |
| 10/09 | 3,770 | 3,810 | 3,745 | 3,795 | +2.57% | 98,900 | 1004億4948万 | +0.93% |
| 10/08 | 3,735 | 3,755 | 3,680 | 3,700 | -1.6% | 136,400 | 979億3493万 | -1.33% |
| 10/07 | 3,815 | 3,850 | 3,740 | 3,760 | -1.96% | 137,400 | 995億2307万 | +0.35% |
| 10/01 | (IR情報)16:00 (開示事項の変更)江西盛泰精密光学有限公司の第三者割当増資引受における契約締結予定日及び第三者割当増資引受日の変更に関するお知らせ |