| 2026 |
| 03/06 | 793 | 793 | 777 | 780 | +0.13% | 4,600 | 166億5300万 | +1.96% |
| 03/05 | 778 | 779 | 769 | 779 | +1.83% | 2,800 | 166億3165万 | +2.1% |
| 03/04 | 760 | 774 | 760 | 765 | -0.39% | 7,400 | 163億3275万 | +0.39% |
| 03/03 | 790 | 792 | 762 | 768 | -2.78% | 11,400 | 163億9680万 | +0.79% |
| 03/02 | 792 | 792 | 780 | 790 | +0.51% | 7,200 | 168億6650万 | +3.81% |
| 02/27 | 784 | 794 | 781 | 786 | +0.51% | 4,100 | 167億8110万 | +3.42% |
| 02/26 | 795 | 800 | 782 | 782 | -1.64% | 13,800 | 166億9570万 | +3.17% |
| 02/25 | 794 | 797 | 785 | 795 | +0.89% | 10,200 | 169億7325万 | +5.02% |
| 02/24 | 789 | 795 | 782 | 788 | +1.29% | 11,100 | 168億2380万 | +4.23% |
| 02/20 | 773 | 778 | 772 | 778 | +0.52% | 3,600 | 166億1030万 | +3.18% |
| 02/19 | 765 | 774 | 764 | 774 | +1.18% | 5,800 | 165億2490万 | +2.93% |
| 02/18 | 755 | 777 | 755 | 765 | +1.32% | 15,700 | 163億3275万 | +2% |
| 02/17 | 755 | 759 | 752 | 755 | +0.13% | 4,400 | 161億1925万 | +0.8% |
| 02/16 | 753 | 758 | 748 | 754 | +1.21% | 2,700 | 160億9790万 | +0.67% |
| 02/13 | 761 | 761 | 741 | 745 | -1.19% | 10,500 | 159億575万 | -0.4% |
| 02/12 | 746 | 755 | 746 | 754 | +1.07% | 7,100 | 160億9790万 | +0.8% |
| 02/10 | 747 | 747 | 739 | 746 | +0.67% | 7,400 | 159億2710万 | -0.27% |
| 02/09 | 748 | 749 | 740 | 741 | +0.14% | 12,600 | 158億2035万 | -0.94% |
| 02/06 | 736 | 747 | 735 | 740 | +0.14% | 16,100 | 157億9900万 | -1.07% |
| 02/05 | 742 | 749 | 733 | 739 | -1.2% | 21,500 | 157億7765万 | -1.07% |
| 02/04 | (IR情報)14:00 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/04 | 779 | 815 | 718 | 748 | -3.98% | 151,200 | 159億6980万 | +0.27% |
| 02/03 | 760 | 783 | 757 | 779 | +3.04% | 9,700 | 166億3165万 | +4.56% |
| 02/02 | 755 | 758 | 751 | 756 | +0.13% | 7,700 | 161億4060万 | +1.75% |
| 01/30 | 751 | 755 | 751 | 755 | +0.13% | 2,600 | 161億1925万 | +1.75% |
| 01/29 | 751 | 757 | 751 | 754 | +0.4% | 2,700 | 160億9790万 | +1.75% |
| 01/28 | 751 | 756 | 751 | 751 | -0.13% | 2,100 | 160億3385万 | +1.62% |
| 01/27 | 750 | 759 | 750 | 752 | +0.13% | 3,800 | 160億5520万 | +1.9% |
| 01/26 | 752 | 755 | 751 | 751 | -0.4% | 3,200 | 160億3385万 | +1.9% |
| 01/23 | 751 | 756 | 749 | 754 | +0.53% | 8,100 | 160億9790万 | +2.45% |
| 01/22 | 751 | 759 | 748 | 750 | -0.53% | 9,600 | 160億1250万 | +2.04% |
| 01/21 | 751 | 754 | 748 | 754 | +0.4% | 3,700 | 160億9790万 | +2.86% |
| 01/20 | 754 | 756 | 746 | 751 | -0.4% | 4,700 | 160億3385万 | +2.6% |
| 01/19 | 744 | 754 | 742 | 754 | +1.75% | 7,600 | 160億9790万 | +3.15% |
| 01/16 | 738 | 743 | 736 | 741 | +1.09% | 3,500 | 158億2035万 | +1.51% |
| 01/15 | 735 | 740 | 733 | 733 | -0.27% | 10,700 | 156億4955万 | +0.55% |
| 01/14 | 739 | 740 | 733 | 735 | -0.27% | 6,400 | 156億9225万 | +0.96% |
| 01/13 | 741 | 742 | 734 | 737 | -0.54% | 17,500 | 157億3495万 | +1.24% |
| 01/09 | 744 | 744 | 733 | 741 | 0% | 11,200 | 158億2035万 | +1.93% |
| 01/08 | 745 | 745 | 736 | 741 | -0.27% | 9,300 | 158億2035万 | +2.07% |
| 01/07 | 748 | 748 | 736 | 743 | -0.67% | 10,300 | 158億6305万 | +2.34% |
| 01/06 | 746 | 748 | 740 | 748 | +0.54% | 11,300 | 159億6980万 | +3.17% |
| 01/05 | 745 | 747 | 742 | 744 | +0.68% | 7,800 | 158億8440万 | +2.76% |
| 2025 |
| 12/30 | 729 | 739 | 728 | 739 | +1.51% | 8,900 | 157億7765万 | +2.21% |
| 12/29 | 724 | 729 | 724 | 728 | +0.83% | 8,600 | 155億4280万 | +0.83% |
| 12/26 | 723 | 725 | 722 | 722 | 0% | 4,200 | 154億1470万 | 0% |
| 12/25 | 726 | 726 | 719 | 722 | -0.55% | 15,500 | 154億1470万 | 0% |
| 12/24 | 720 | 726 | 720 | 726 | +0.83% | 8,400 | 155億10万 | +0.55% |
| 12/23 | (5%ルール)三井化学(3.7%) |
| 12/23 | 723 | 724 | 719 | 720 | -0.28% | 18,800 | 153億7200万 | -0.14% |
| 12/22 | 720 | 724 | 720 | 722 | -0.14% | 23,600 | 154億1470万 | +0.14% |
| 12/19 | 724 | 724 | 722 | 723 | +0.14% | 3,500 | 154億3605万 | +0.14% |
| 12/18 | 722 | 724 | 721 | 722 | 0% | 4,000 | 154億1470万 | 0% |
| 12/17 | 724 | 724 | 720 | 722 | -0.14% | 5,400 | 154億1470万 | -0.14% |
| 12/16 | 723 | 724 | 721 | 723 | +0.14% | 4,000 | 154億3605万 | 0% |
| 12/15 | 724 | 727 | 721 | 722 | 0% | 12,800 | 154億1470万 | -0.14% |
| 12/12 | 722 | 724 | 719 | 722 | 0% | 11,400 | 154億1470万 | -0.28% |
| 12/11 | 724 | 724 | 719 | 722 | +0.28% | 7,700 | 154億1470万 | -0.55% |
| 12/10 | 725 | 725 | 719 | 720 | 0% | 13,000 | 153億7200万 | -1.1% |
| 12/09 | 722 | 724 | 720 | 720 | 0% | 7,400 | 153億7200万 | -1.5% |
| 12/08 | 721 | 723 | 719 | 720 | -0.41% | 10,900 | 153億7200万 | -1.77% |
| 12/05 | 725 | 725 | 720 | 723 | 0% | 11,600 | 154億3605万 | -1.77% |
| 12/04 | 724 | 724 | 721 | 723 | +0.28% | 3,500 | 154億3605万 | -2.03% |
| 12/03 | 723 | 725 | 720 | 721 | -0.14% | 4,100 | 153億9335万 | -2.7% |
| 12/02 | 729 | 729 | 722 | 722 | -0.55% | 6,000 | 154億1470万 | -2.96% |
| 12/01 | 724 | 728 | 721 | 726 | +0.69% | 3,600 | 155億10万 | -2.68% |
| 11/28 | 722 | 724 | 719 | 721 | -0.28% | 5,400 | 153億9335万 | -3.74% |
| 11/27 | 723 | 723 | 721 | 723 | +0.98% | 1,600 | 154億3605万 | -3.73% |
| 11/26 | 720 | 720 | 716 | 716 | -0.56% | 4,400 | 152億8660万 | -4.91% |
| 11/25 | 725 | 725 | 715 | 720 | -0.69% | 15,400 | 153億7200万 | -4.64% |
| 11/21 | 720 | 725 | 715 | 725 | +0.69% | 6,600 | 154億7875万 | -4.23% |
| 11/20 | 723 | 725 | 720 | 720 | +0.7% | 2,600 | 153億7200万 | -5.14% |
| 11/19 | 720 | 723 | 715 | 715 | -0.56% | 8,200 | 152億6525万 | -6.04% |
| 11/18 | 727 | 728 | 719 | 719 | -0.28% | 6,600 | 153億5065万 | -5.77% |
| 11/17 | 730 | 735 | 720 | 721 | -1.1% | 12,400 | 153億9335万 | -5.75% |
| 11/14 | 733 | 734 | 729 | 729 | -0.82% | 5,300 | 155億6415万 | -4.95% |
| 11/13 | 735 | 736 | 733 | 735 | +0.27% | 7,000 | 156億9225万 | -4.42% |
| 11/12 | 733 | 736 | 733 | 733 | 0% | 7,200 | 156億4955万 | -4.93% |
| 11/11 | 724 | 737 | 724 | 733 | +1.24% | 7,200 | 156億4955万 | -5.3% |
| 11/10 | 741 | 747 | 719 | 724 | -2.43% | 15,600 | 154億5740万 | -6.7% |
| 11/07 | (IR情報)14:00 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 11/07 | (IR情報)14:00 2026年3月期第2四半期(中間期)決算説明資料 |
| 11/07 | 783 | 783 | 731 | 742 | -5.24% | 24,100 | 158億4170万 | -4.75% |
| 11/06 | 767 | 783 | 766 | 783 | +2.35% | 4,600 | 167億1705万 | +0.26% |
| 11/05 | 783 | 784 | 760 | 765 | -2.8% | 11,300 | 163億3275万 | -2.17% |
| 11/04 | 787 | 787 | 781 | 787 | 0% | 3,600 | 168億245万 | +0.51% |
| 10/31 | 787 | 809 | 785 | 787 | +0.77% | 1,600 | 168億245万 | +0.38% |
| 10/30 | 794 | 794 | 780 | 781 | -0.76% | 4,500 | 166億7435万 | -0.64% |
| 10/29 | 792 | 796 | 786 | 787 | -0.51% | 3,400 | 168億245万 | 0% |
| 10/28 | 792 | 812 | 781 | 791 | 0% | 12,400 | 168億8785万 | +0.38% |
| 10/27 | 784 | 801 | 784 | 791 | +0.89% | 10,100 | 168億8785万 | +0.25% |
| 10/24 | 796 | 800 | 781 | 784 | -0.25% | 12,400 | 167億3840万 | -0.63% |
| 10/23 | 774 | 787 | 774 | 786 | +1.55% | 6,500 | 167億8110万 | -0.51% |
| 10/22 | 771 | 775 | 771 | 774 | +0.39% | 1,900 | 165億2490万 | -2.15% |
| 10/21 | 770 | 773 | 770 | 771 | +0.39% | 1,500 | 164億6085万 | -2.65% |
| 10/20 | 767 | 770 | 767 | 768 | +0.13% | 1,600 | 163億9680万 | -3.15% |
| 10/17 | 771 | 773 | 767 | 767 | -0.9% | 900 | 163億7545万 | -3.52% |
| 10/16 | 774 | 776 | 768 | 774 | 0% | 1,600 | 165億2490万 | -2.89% |
| 10/15 | 772 | 775 | 770 | 774 | +0.91% | 1,800 | 165億2490万 | -3.01% |
| 10/14 | 769 | 769 | 754 | 767 | -0.26% | 7,500 | 163億7545万 | -4.01% |
| 10/10 | 770 | 770 | 755 | 769 | -0.26% | 5,500 | 164億1815万 | -3.88% |
| 10/09 | 780 | 782 | 771 | 771 | -1.53% | 9,700 | 164億6085万 | -3.87% |
| 10/08 | 792 | 797 | 783 | 783 | -1.51% | 4,300 | 167億1705万 | -2.49% |
| 10/07 | 796 | 797 | 788 | 795 | +0.63% | 2,300 | 169億7325万 | -1.12% |