| 2026 |
| 04/24 | 752 | 752 | 745 | 745 | -0.93% | 1,500 | 91億6350万 | -0.8% |
| 04/23 | 753 | 753 | 752 | 752 | 0% | 1,000 | 92億4960万 | 0% |
| 04/22 | 760 | 760 | 752 | 752 | -1.44% | 600 | 92億4960万 | -0.27% |
| 04/21 | 743 | 780 | 743 | 763 | +2.69% | 5,900 | 93億8490万 | +1.06% |
| 04/20 | 745 | 750 | 743 | 743 | +0.27% | 1,100 | 91億3890万 | -1.72% |
| 04/17 | 742 | 745 | 741 | 741 | +0.27% | 1,900 | 91億1430万 | -2.24% |
| 04/16 | 737 | 739 | 737 | 739 | +0.54% | 300 | 90億8970万 | -2.76% |
| 04/15 | 736 | 739 | 735 | 735 | 0% | 1,500 | 90億4050万 | -3.54% |
| 04/14 | 735 | 735 | 730 | 735 | -1.34% | 3,700 | 90億4050万 | -4.05% |
| 04/13 | 743 | 745 | 742 | 745 | -0.53% | 1,400 | 91億6350万 | -3.62% |
| 04/10 | (自社株買い)取締役会(2026年3月6日)での決議状況(取得期間2026年3月9日~2026年3月9日) |
| 04/10 | 749 | 755 | 749 | 749 | -0.4% | 2,200 | 92億1270万 | -3.35% |
| 04/09 | 750 | 757 | 750 | 752 | +1.08% | 2,900 | 92億4960万 | -3.34% |
| 04/08 | 745 | 750 | 744 | 744 | +0.81% | 600 | 91億5120万 | -4.49% |
| 04/07 | 741 | 743 | 738 | 738 | -1.34% | 1,900 | 90億7740万 | -5.51% |
| 04/06 | 742 | 750 | 737 | 748 | +0.13% | 2,700 | 92億40万 | -4.59% |
| 04/03 | 742 | 757 | 742 | 747 | +0.81% | 800 | 91億8810万 | -5.08% |
| 04/02 | 748 | 751 | 741 | 741 | -0.94% | 1,700 | 91億1430万 | -6.2% |
| 04/01 | 747 | 752 | 745 | 748 | +0.4% | 3,000 | 92億40万 | -5.56% |
| 03/31 | 740 | 754 | 739 | 745 | +0.13% | 1,300 | 91億6350万 | -6.17% |
| 03/30 | 754 | 754 | 740 | 744 | -3.38% | 8,300 | 91億5120万 | -6.53% |
| 03/27 | 776 | 777 | 766 | 770 | 0% | 4,900 | 94億7100万 | -3.63% |
| 03/26 | 785 | 785 | 766 | 770 | -1.91% | 8,600 | 94億7100万 | -3.87% |
| 03/25 | 773 | 788 | 773 | 785 | +1.68% | 4,500 | 96億5550万 | -2.12% |
| 03/24 | 772 | 775 | 769 | 772 | +0.26% | 4,800 | 94億9560万 | -3.74% |
| 03/23 | 770 | 773 | 763 | 770 | -1.28% | 5,200 | 94億7100万 | -3.99% |
| 03/19 | 789 | 789 | 780 | 780 | -1.76% | 8,500 | 95億9400万 | -2.62% |
| 03/18 | 794 | 798 | 789 | 794 | +1.15% | 3,500 | 97億6620万 | -0.75% |
| 03/17 | 779 | 796 | 779 | 785 | +0.64% | 6,000 | 96億5550万 | -1.75% |
| 03/16 | 776 | 785 | 776 | 780 | -0.64% | 8,200 | 95億9400万 | -2.13% |
| 03/13 | 817 | 833 | 779 | 785 | -0.63% | 49,200 | 96億5550万 | -1.38% |
| 03/12 | 805 | 805 | 778 | 790 | -1.86% | 18,000 | 97億1700万 | -0.63% |
| 03/11 | 817 | 819 | 796 | 805 | -1.83% | 31,000 | 99億150万 | +1.51% |
| 03/10 | 1,079 | 1,079 | 820 | 820 | -11.73% | 210,400 | 100億8600万 | +3.67% |
| 03/09 | (IR情報)10:00 自己株式立会外買付取引(ToSTNeT-3)による自己株式の取得結果及び自己株式の取得終了に関するお知らせ |
| 03/09 | 791 | 929 | 791 | 929 | +19.26% | 69,500 | 114億2670万 | +17.89% |
| 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% |