| 2026 |
| 03/06 | (IR情報)16:30 自己株式の取得及び自己株式立会外買付取引(ToSTNeT-3)による自己株式の買付けに関するお知らせ |
| 03/06 | 791 | 791 | 773 | 779 | -5.12% | 2,700 | 95億8170万 | -0.26% |
| 03/05 | 804 | 821 | 799 | 821 | +4.99% | 1,400 | 100億9830万 | +5.12% |
| 03/04 | 788 | 795 | 780 | 782 | -1.88% | 1,400 | 96億1860万 | +0.39% |
| 03/03 | 808 | 808 | 796 | 797 | -3.16% | 1,700 | 98億310万 | +2.31% |
| 03/02 | 825 | 825 | 778 | 823 | -0.24% | 4,400 | 101億2290万 | +5.65% |
| 02/27 | 803 | 825 | 803 | 825 | +2.74% | 1,200 | 101億4750万 | +6.18% |
| 02/26 | 802 | 803 | 802 | 803 | +0.63% | 400 | 98億7690万 | +3.48% |
| 02/25 | 802 | 802 | 798 | 798 | -0.25% | 400 | 98億1540万 | +2.84% |
| 02/24 | 790 | 800 | 776 | 800 | -0.62% | 400 | 98億4000万 | +2.96% |
| 02/20 | 819 | 819 | 805 | 805 | -1.71% | 2,300 | 99億150万 | +3.6% |
| 02/19 | 799 | 819 | 799 | 819 | +2.5% | 1,400 | 100億7370万 | +5.41% |
| 02/18 | 786 | 799 | 786 | 799 | -0.13% | 300 | 98億2770万 | +2.96% |
| 02/17 | 791 | 803 | 786 | 800 | +1.27% | 1,600 | 98億4000万 | +3.09% |
| 02/16 | 766 | 792 | 766 | 790 | +4.08% | 2,200 | 97億1700万 | +1.67% |
| 02/13 | 760 | 760 | 759 | 759 | +0.13% | 1,200 | 93億3570万 | -2.32% |
| 02/12 | 760 | 760 | 758 | 758 | +0.26% | 300 | 93億2340万 | -2.57% |
| 02/10 | 756 | 756 | 756 | 756 | 0% | 200 | 92億9880万 | -3.08% |
| 02/09 | 773 | 773 | 750 | 756 | -0.26% | 2,800 | 92億9880万 | -3.2% |
| 02/06 | (IR情報)15:00 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/06 | 755 | 772 | 755 | 758 | +0.93% | 1,700 | 93億2340万 | -3.19% |
| 02/05 | 760 | 760 | 751 | 751 | -0.13% | 600 | 92億3730万 | -4.21% |
| 02/04 | 740 | 752 | 740 | 752 | +1.62% | 1,100 | 92億4960万 | -4.2% |
| 02/03 | 749 | 750 | 740 | 740 | -1.2% | 1,600 | 91億200万 | -5.85% |
| 02/02 | 744 | 769 | 744 | 749 | +0.67% | 5,600 | 92億1270万 | -4.71% |
| 01/30 | 749 | 751 | 744 | 744 | -2.62% | 2,700 | 91億5120万 | -5.46% |
| 01/29 | 754 | 764 | 750 | 764 | -1.42% | 2,600 | 93億9720万 | -2.92% |
| 01/28 | 775 | 775 | 775 | 775 | 0% | 3,200 | 95億3250万 | -1.52% |
| 01/27 | 780 | 780 | 775 | 775 | -0.64% | 700 | 95億3250万 | -1.4% |
| 01/26 | 780 | 780 | 780 | 780 | -0.51% | 300 | 95億9400万 | -0.64% |
| 01/23 | 787 | 789 | 784 | 784 | -0.63% | 900 | 96億4320万 | +0.26% |
| 01/22 | 796 | 796 | 789 | 789 | -2.11% | 2,400 | 97億470万 | +1.15% |
| 01/21 | 806 | 806 | 803 | 806 | +0.62% | 2,300 | 99億1380万 | +3.6% |
| 01/20 | 802 | 802 | 799 | 801 | -0.25% | 900 | 98億5230万 | +3.49% |
| 01/19 | 824 | 824 | 803 | 803 | -2.55% | 1,300 | 98億7690万 | +4.15% |
| 01/16 | 787 | 825 | 787 | 824 | +4.7% | 1,700 | 101億3520万 | +7.43% |
| 01/15 | 800 | 800 | 778 | 787 | -1.63% | 6,400 | 96億8010万 | +3.15% |
| 01/14 | 800 | 800 | 800 | 800 | 0% | 100 | 98億4000万 | +5.26% |
| 01/13 | 801 | 801 | 800 | 800 | -1.48% | 500 | 98億4000万 | +5.82% |
| 01/13 | (IR情報)8:45 軽井沢ガス株式会社の全株式取得(完全子会社化)に関するお知らせ |
| 01/09 | 800 | 812 | 800 | 812 | +1.5% | 2,000 | 99億8760万 | +7.84% |
| 01/08 | 800 | 801 | 800 | 800 | +0.38% | 1,000 | 98億4000万 | +6.81% |
| 01/07 | 797 | 797 | 797 | 797 | +0.76% | 300 | 98億310万 | +6.98% |
| 01/06 | 798 | 798 | 791 | 791 | +1.02% | 600 | 97億2930万 | +6.6% |
| 01/05 | 800 | 800 | 781 | 783 | -2% | 2,100 | 96億3090万 | +5.95% |
| 2025 |
| 12/30 | 788 | 809 | 780 | 799 | +1.4% | 2,400 | 98億2770万 | +8.56% |
| 12/29 | 778 | 799 | 778 | 788 | +1.29% | 7,600 | 96億9240万 | +7.65% |
| 12/26 | 776 | 778 | 773 | 778 | +0.52% | 1,200 | 95億6940万 | +6.87% |
| 12/25 | 753 | 774 | 753 | 774 | +2.79% | 700 | 95億2020万 | +6.61% |
| 12/24 | 750 | 753 | 750 | 753 | -1.57% | 400 | 92億6190万 | +4.15% |
| 12/23 | 747 | 765 | 747 | 765 | +2.41% | 500 | 94億950万 | +6.1% |
| 12/22 | 759 | 759 | 747 | 747 | -2.1% | 200 | 91億8810万 | +3.89% |
| 12/19 | 760 | 775 | 759 | 763 | +1.73% | 4,500 | 93億8490万 | +6.42% |
| 12/18 | 741 | 750 | 740 | 750 | +1.35% | 1,600 | 92億2500万 | +4.9% |
| 12/17 | 724 | 740 | 724 | 740 | +1.79% | 200 | 91億200万 | +3.79% |
| 12/16 | 749 | 750 | 727 | 727 | +0.28% | 5,600 | 89億4210万 | +2.11% |
| 12/15 | 714 | 727 | 714 | 725 | -0.55% | 2,500 | 89億1750万 | +1.97% |
| 12/12 | 725 | 729 | 725 | 729 | +1.25% | 1,300 | 89億6670万 | +2.68% |
| 12/10 | 716 | 720 | 716 | 720 | +0.14% | 900 | 88億5600万 | +1.41% |
| 12/08 | 711 | 719 | 711 | 719 | +1.27% | 400 | 88億4370万 | +1.41% |
| 12/05 | 707 | 717 | 707 | 710 | -0.7% | 600 | 87億3300万 | +0.14% |
| 12/04 | 715 | 715 | 715 | 715 | +1.13% | 100 | 87億9450万 | +0.85% |
| 12/03 | 709 | 709 | 707 | 707 | -1.81% | 300 | 86億9610万 | -0.14% |
| 11/28 | 720 | 724 | 712 | 720 | +0.84% | 6,100 | 88億5600万 | +1.69% |
| 11/27 | 712 | 714 | 710 | 714 | +0.85% | 1,400 | 87億8220万 | +0.85% |
| 11/27 | (IR情報)9:00 公正取引委員会からの課徴金納付命令について |
| 11/26 | 707 | 708 | 704 | 708 | +0.14% | 1,500 | 87億840万 | +0.14% |
| 11/25 | 715 | 715 | 704 | 707 | -0.28% | 5,100 | 86億9610万 | 0% |
| 11/21 | 720 | 720 | 703 | 709 | -0.84% | 3,700 | 87億2070万 | +0.28% |
| 11/20 | 709 | 715 | 707 | 715 | +0.85% | 1,300 | 87億9450万 | +1.27% |
| 11/19 | 706 | 709 | 701 | 709 | +0.85% | 2,400 | 87億2070万 | +0.42% |
| 11/18 | 702 | 704 | 699 | 703 | +0.43% | 1,700 | 86億4690万 | -0.42% |
| 11/17 | 709 | 709 | 699 | 700 | -1.27% | 1,700 | 86億1000万 | -0.85% |
| 11/14 | 710 | 710 | 709 | 709 | +0.71% | 600 | 87億2070万 | +0.42% |
| 11/13 | 707 | 710 | 704 | 704 | -0.56% | 1,500 | 86億5920万 | -0.14% |
| 11/11 | 708 | 708 | 708 | 708 | -1.12% | 900 | 87億840万 | +0.43% |
| 11/10 | (IR情報)15:30 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 11/10 | 700 | 716 | 696 | 716 | +2.29% | 3,000 | 88億680万 | +1.56% |
| 11/06 | 700 | 700 | 700 | 700 | -0.99% | 200 | 86億1000万 | -0.57% |
| 11/05 | 707 | 707 | 707 | 707 | 0% | 2,500 | 86億9610万 | +0.43% |
| 11/04 | 714 | 714 | 700 | 707 | -1.12% | 2,000 | 86億9610万 | +0.43% |
| 10/31 | 706 | 715 | 706 | 715 | +1.27% | 2,400 | 87億9450万 | +1.71% |
| 10/30 | 705 | 706 | 705 | 706 | +0.14% | 500 | 86億8380万 | +0.43% |
| 10/29 | 707 | 717 | 705 | 705 | -0.28% | 1,000 | 86億7150万 | +0.43% |
| 10/28 | 718 | 718 | 703 | 707 | -1.39% | 4,300 | 86億9610万 | +0.71% |
| 10/27 | 708 | 717 | 708 | 717 | +1.7% | 2,300 | 88億1910万 | +2.28% |
| 10/24 | 704 | 707 | 704 | 705 | -0.28% | 2,200 | 86億7150万 | +0.71% |
| 10/23 | 704 | 707 | 704 | 707 | 0% | 300 | 86億9610万 | +1% |
| 10/22 | 702 | 707 | 700 | 707 | 0% | 2,500 | 86億9610万 | +1.14% |
| 10/21 | 707 | 707 | 698 | 707 | +0.71% | 4,400 | 86億9610万 | +1.29% |
| 10/20 | 701 | 704 | 696 | 702 | +0.57% | 2,700 | 86億3460万 | +0.57% |
| 10/17 | 698 | 699 | 696 | 698 | -1.27% | 1,000 | 85億8540万 | 0% |
| 10/16 | 698 | 707 | 695 | 707 | +1.43% | 2,700 | 86億9610万 | +1.29% |
| 10/15 | 700 | 700 | 697 | 697 | -0.85% | 2,200 | 85億7310万 | 0% |
| 10/14 | 702 | 703 | 702 | 703 | 0% | 400 | 86億4690万 | +0.86% |
| 10/10 | 704 | 704 | 694 | 703 | -0.28% | 1,700 | 86億4690万 | +0.86% |
| 10/09 | 703 | 705 | 703 | 705 | 0% | 200 | 86億7150万 | +1.29% |
| 10/08 | 705 | 705 | 697 | 705 | +1.15% | 700 | 86億7150万 | +1.29% |
| 10/07 | 697 | 697 | 697 | 697 | +0.14% | 200 | 85億7310万 | +0.14% |
| 10/06 | 703 | 708 | 696 | 696 | -0.85% | 1,000 | 85億6080万 | 0% |
| 10/03 | 697 | 702 | 693 | 702 | +0.57% | 500 | 86億3460万 | +0.86% |
| 10/02 | 693 | 698 | 693 | 698 | +0.14% | 3,100 | 85億8540万 | +0.29% |
| 09/30 | 699 | 699 | 697 | 697 | -0.99% | 200 | 85億7310万 | +0.14% |
| 09/29 | 722 | 722 | 688 | 704 | +1% | 7,000 | 86億5920万 | +1% |
| 09/26 | 696 | 698 | 696 | 697 | 0% | 2,200 | 85億7310万 | +0.14% |