| 2026 |
| 03/06 | 4,040 | 4,045 | 4,040 | 4,040 | -0.12% | 30,700 | 173億5571万 | +3.3% |
| 03/05 | 4,045 | 4,045 | 4,040 | 4,045 | +0.12% | 7,700 | 173億7719万 | +4.01% |
| 03/04 | 4,040 | 4,045 | 4,040 | 4,040 | -0.12% | 8,300 | 173億5571万 | +4.5% |
| 03/03 | 4,045 | 4,050 | 4,040 | 4,045 | 0% | 29,400 | 173億7719万 | +5.28% |
| 03/02 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 59,300 | 173億7719万 | +5.89% |
| 02/27 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 53,000 | 173億7719万 | +6.36% |
| 02/26 | 4,045 | 4,045 | 4,045 | 4,045 | 0% | 47,900 | 173億7719万 | +6.87% |
| 02/25 | 4,045 | 4,045 | 4,045 | 4,045 | 0% | 20,500 | 173億7719万 | +7.47% |
| 02/24 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 33,100 | 173億7719万 | +7.87% |
| 02/20 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 21,000 | 173億7719万 | +8.18% |
| 02/19 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 28,100 | 173億7719万 | +8.88% |
| 02/18 | 4,045 | 4,045 | 4,045 | 4,045 | 0% | 29,000 | 173億7719万 | +9.89% |
| 02/17 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 23,400 | 173億7719万 | +10.88% |
| 02/16 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 19,100 | 173億7719万 | +11.89% |
| 02/13 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 24,800 | 173億7719万 | +12.93% |
| 02/12 | (5%ルール)東レ(51%) |
| 02/12 | (5%ルール)東レ(29.24%) |
| 02/12 | (5%ルール)東レ(22.05%) |
| 02/12 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 55,400 | 173億7719万 | +14.01% |
| 02/10 | 4,045 | 4,050 | 4,045 | 4,045 | 0% | 42,500 | 173億7719万 | +15.01% |
| 02/09 | 4,055 | 4,060 | 4,045 | 4,045 | -0.98% | 54,100 | 173億7719万 | +16.1% |
| 02/06 | 4,075 | 4,135 | 4,055 | 4,085 | +5.56% | 114,700 | 175億4902万 | +18.44% |
| 02/05 | (IR情報)22:00 メタウォーター株式会社による当社株式に対する公開買付けに関する意見表明並びに同社及び東レ株式会社との資本業務提携に関するお知らせ |
| 02/05 | (IR情報)22:00 2026年3月期の配当予想修正(無配)に関するお知らせ |
| 02/05 | (IR情報)22:00 営業外収益及び特別損失発生並びに2026年3月期通期連結業績予想数値の修正に関するお知らせ |
| 02/05 | (IR情報)22:00 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/05 | 3,555 | 3,870 | 3,555 | 3,870 | +9.01% | 28,100 | 166億2539万 | +13.39% |
| 02/04 | 3,570 | 3,570 | 3,450 | 3,550 | -0.56% | 7,300 | 152億5068万 | +4.97% |
| 02/03 | 3,300 | 3,600 | 3,300 | 3,570 | +9.68% | 14,600 | 153億3660万 | +6.22% |
| 02/02 | 3,270 | 3,405 | 3,255 | 3,255 | -0.76% | 3,200 | 139億8337万 | -2.54% |
| 01/30 | 3,340 | 3,340 | 3,255 | 3,280 | -2.67% | 3,500 | 140億9077万 | -1.59% |
| 01/29 | 3,420 | 3,420 | 3,325 | 3,370 | -3.44% | 5,200 | 144億7741万 | +1.41% |
| 01/28 | 3,415 | 3,510 | 3,395 | 3,490 | +1.01% | 4,400 | 149億9292万 | +5.5% |
| 01/27 | 3,430 | 3,475 | 3,425 | 3,455 | +0.29% | 1,700 | 148億4256万 | +5.05% |
| 01/26 | 3,500 | 3,510 | 3,410 | 3,445 | -1.85% | 4,600 | 147億9960万 | +5.38% |
| 01/23 | 3,530 | 3,580 | 3,500 | 3,510 | -2.5% | 6,300 | 150億7884万 | +8% |
| 01/22 | 3,680 | 3,680 | 3,485 | 3,600 | -0.28% | 9,400 | 154億6548万 | +11.46% |
| 01/21 | 3,385 | 3,615 | 3,380 | 3,610 | +2.41% | 18,000 | 155億844万 | +12.64% |
| 01/20 | 3,650 | 3,675 | 3,520 | 3,525 | -4.21% | 10,000 | 151億4328万 | +10.88% |
| 01/19 | 3,850 | 3,870 | 3,560 | 3,680 | -2.65% | 17,600 | 158億916万 | +16.49% |
| 01/16 | 3,950 | 3,950 | 3,535 | 3,780 | +10.2% | 60,600 | 162億3875万 | +20.65% |
| 01/15 | 3,200 | 3,435 | 3,200 | 3,430 | +7.19% | 15,700 | 147億3517万 | +10.47% |
| 01/14 | 3,225 | 3,240 | 3,195 | 3,200 | -0.78% | 4,000 | 137億4709万 | +3.59% |
| 01/13 | 3,265 | 3,270 | 3,215 | 3,225 | +0.31% | 4,300 | 138億5449万 | +4.67% |
| 01/09 | 3,155 | 3,220 | 3,155 | 3,215 | -0.16% | 4,700 | 138億1153万 | +4.65% |
| 01/08 | 3,200 | 3,230 | 3,190 | 3,220 | +0.47% | 3,900 | 138億3301万 | +5.09% |
| 01/07 | 3,255 | 3,260 | 3,200 | 3,205 | -1.54% | 3,200 | 137億6857万 | +4.84% |
| 01/06 | 3,235 | 3,300 | 3,235 | 3,255 | +0.93% | 1,700 | 139億8337万 | +6.65% |
| 01/05 | 3,265 | 3,275 | 3,200 | 3,225 | +1.9% | 4,500 | 138億5449万 | +5.84% |
| 2025 |
| 12/30 | 3,195 | 3,235 | 3,165 | 3,165 | -1.25% | 2,500 | 135億9673万 | +3.94% |
| 12/29 | 3,220 | 3,385 | 3,200 | 3,205 | +4.06% | 33,100 | 137億6857万 | +5.57% |
| 12/26 | 3,085 | 3,270 | 3,040 | 3,080 | +1.32% | 11,300 | 132億3158万 | +1.78% |
| 12/25 | 3,025 | 3,040 | 3,010 | 3,040 | +0.16% | 3,300 | 130億5974万 | +0.63% |
| 12/24 | 3,070 | 3,070 | 3,010 | 3,035 | -1.14% | 3,200 | 130億3826万 | +0.43% |
| 12/23 | 3,040 | 3,080 | 3,015 | 3,070 | +0.99% | 2,100 | 131億8862万 | +1.69% |
| 12/22 | 3,070 | 3,070 | 3,040 | 3,040 | +1.37% | 1,400 | 130億5974万 | +0.73% |
| 12/19 | 3,015 | 3,035 | 2,999 | 2,999 | -0.2% | 3,300 | 128億8360万 | -0.79% |
| 12/18 | 2,951 | 3,015 | 2,950 | 3,005 | +1.59% | 5,200 | 129億938万 | -0.89% |
| 12/17 | 2,975 | 2,975 | 2,958 | 2,958 | -0.9% | 1,200 | 127億747万 | -2.73% |
| 12/16 | 2,974 | 2,999 | 2,971 | 2,985 | -0.27% | 1,100 | 128億2346万 | -2.13% |
| 12/15 | 2,972 | 3,000 | 2,972 | 2,993 | +0.71% | 2,600 | 128億5783万 | -2.25% |
| 12/12 | 2,980 | 3,025 | 2,970 | 2,972 | -0.27% | 5,700 | 127億6761万 | -3.22% |
| 12/11 | 3,015 | 3,015 | 2,980 | 2,980 | -1.49% | 7,400 | 128億198万 | -3.12% |
| 12/10 | (IR情報)16:30 株式取得(子会社化)中止に関するお知らせ |
| 12/10 | 3,010 | 3,035 | 2,984 | 3,025 | -0.17% | 3,700 | 129億9530万 | -1.79% |
| 12/09 | 3,085 | 3,095 | 3,010 | 3,030 | -1.3% | 3,300 | 130億1678万 | -1.78% |
| 12/08 | 2,997 | 3,085 | 2,997 | 3,070 | +1.66% | 2,600 | 131億8862万 | -0.45% |
| 12/05 | 2,996 | 3,025 | 2,996 | 3,020 | 0% | 2,300 | 129億7382万 | -1.69% |
| 12/04 | 3,000 | 3,045 | 3,000 | 3,020 | +0.67% | 2,100 | 129億7382万 | -1.47% |
| 12/03 | 3,070 | 3,070 | 2,965 | 3,000 | 0% | 2,600 | 128億8790万 | -1.99% |
| 12/02 | 3,055 | 3,075 | 2,988 | 3,000 | -1.64% | 12,200 | 128億8790万 | -1.83% |
| 12/01 | 3,080 | 3,080 | 3,050 | 3,050 | -1.13% | 6,600 | 131億270万 | -0.07% |
| 11/28 | 3,105 | 3,115 | 3,055 | 3,085 | -1.28% | 7,200 | 132億5306万 | +1.31% |
| 11/27 | 3,145 | 3,160 | 3,100 | 3,125 | -1.57% | 3,200 | 134億2490万 | +2.9% |
| 11/26 | 3,015 | 3,195 | 2,960 | 3,175 | +8.29% | 22,900 | 136億3969万 | +4.99% |
| 11/25 | 3,075 | 3,075 | 2,932 | 2,932 | -0.78% | 6,500 | 125億9577万 | -2.56% |
| 11/21 | 2,933 | 2,999 | 2,933 | 2,955 | -0.27% | 3,200 | 126億9458万 | -1.53% |
| 11/20 | 3,030 | 3,030 | 2,952 | 2,963 | -3.17% | 4,600 | 127億2895万 | -1.1% |
| 11/19 | 3,010 | 3,090 | 2,946 | 3,060 | +3.38% | 10,400 | 131億4566万 | +2.27% |
| 11/18 | 3,020 | 3,035 | 2,949 | 2,960 | -3.11% | 4,500 | 127億1606万 | -0.64% |
| 11/17 | 3,115 | 3,115 | 2,960 | 3,055 | -3.63% | 6,500 | 131億2418万 | +2.83% |
| 11/14 | 3,185 | 3,280 | 3,145 | 3,170 | -1.25% | 16,100 | 136億1821万 | +7.02% |
| 11/13 | 3,235 | 3,260 | 3,200 | 3,210 | -0.62% | 4,300 | 137億9005万 | +8.81% |
| 11/12 | 3,175 | 3,275 | 3,160 | 3,230 | +1.73% | 9,300 | 138億7597万 | +10.05% |
| 11/11 | 3,280 | 3,375 | 3,120 | 3,175 | -3.79% | 33,900 | 136億3969万 | +8.7% |
| 11/10 | 3,220 | 3,300 | 3,200 | 3,300 | +2.8% | 12,000 | 141億7669万 | +13.44% |
| 11/07 | 3,115 | 3,250 | 3,115 | 3,210 | +3.72% | 30,000 | 137億9005万 | +11.11% |
| 11/06 | (IR情報)16:30 営業外費用発生並びに連結子会社化完了に関するお知らせ |
| 11/06 | (IR情報)16:30 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 11/06 | 3,080 | 3,130 | 3,025 | 3,095 | +0.65% | 16,000 | 132億9602万 | +7.61% |
| 11/05 | 3,100 | 3,115 | 3,005 | 3,075 | -3% | 12,900 | 132億1010万 | +7.18% |
| 11/04 | 3,125 | 3,255 | 3,110 | 3,170 | +6.27% | 38,200 | 136億1821万 | +10.53% |
| 10/31 | 2,891 | 3,070 | 2,841 | 2,983 | +6.88% | 39,200 | 128億1487万 | +4.08% |
| 10/30 | 2,810 | 2,820 | 2,752 | 2,791 | -1.38% | 12,800 | 119億9004万 | -2.65% |
| 10/29 | 2,914 | 2,914 | 2,806 | 2,830 | -2.88% | 7,200 | 121億5758万 | -1.67% |
| 10/28 | 2,895 | 2,974 | 2,883 | 2,914 | +0.66% | 12,200 | 125億1845万 | +0.9% |
| 10/27 | 2,882 | 2,941 | 2,882 | 2,895 | +0.45% | 6,300 | 124億3682万 | -0.14% |
| 10/24 | 2,885 | 2,950 | 2,854 | 2,882 | +0.03% | 8,700 | 123億8097万 | -1.06% |
| 10/23 | 2,885 | 2,897 | 2,860 | 2,881 | -0.14% | 4,300 | 123億7668万 | -1.23% |
| 10/22 | 2,783 | 2,898 | 2,781 | 2,885 | +3.04% | 9,300 | 123億9386万 | -1.37% |
| 10/21 | 2,800 | 2,861 | 2,800 | 2,800 | 0% | 3,300 | 120億2871万 | -4.6% |
| 10/20 | 2,745 | 2,925 | 2,745 | 2,800 | +2% | 9,100 | 120億2871万 | -5.21% |
| 10/17 | 2,806 | 2,806 | 2,745 | 2,745 | -3.04% | 7,900 | 117億9243万 | -7.73% |
| 10/16 | 2,815 | 2,852 | 2,815 | 2,831 | -1.19% | 9,000 | 121億6188万 | -5.88% |
| 10/15 | 2,732 | 2,874 | 2,732 | 2,865 | +5.37% | 11,600 | 123億794万 | -5.13% |
| 10/14 | 2,709 | 2,760 | 2,709 | 2,719 | -1.34% | 11,600 | 116億8073万 | -10.15% |
| 10/10 | 2,804 | 2,825 | 2,756 | 2,756 | -2.61% | 12,600 | 118億3968万 | -9.64% |
| 10/09 | 2,886 | 2,886 | 2,820 | 2,830 | -1.94% | 8,400 | 121億5758万 | -7.49% |
| 10/08 | 2,826 | 2,931 | 2,826 | 2,886 | +2.34% | 11,500 | 123億9816万 | -5.44% |
| 10/07 | 2,865 | 2,866 | 2,800 | 2,820 | -2.42% | 15,700 | 121億1462万 | -7.3% |