| 2026 |
| 10/02 | 888 | 888 | 881 | 881 | -0.23% | 4,900 | - | +0.11% |
| 10/01 | 883 | 887 | 878 | 883 | +0.57% | 5,000 | - | +0.46% |
| 09/30 | 884 | 884 | 873 | 878 | +0.23% | 4,000 | - | -0.11% |
| 09/29 | 885 | 885 | 873 | 876 | -0.34% | 3,600 | - | -0.45% |
| 09/28 | 876 | 887 | 876 | 879 | +0.34% | 10,600 | - | -0.11% |
| 09/25 | (IR情報)16:00 支配株主等に関する事項について |
| 09/25 | 890 | 896 | 876 | 876 | -1.46% | 10,200 | - | -0.45% |
| 09/24 | 889 | 902 | 886 | 889 | +0.34% | 24,000 | - | +1.14% |
| 09/18 | 880 | 891 | 875 | 886 | +0.68% | 7,300 | - | +0.8% |
| 09/17 | 867 | 892 | 866 | 880 | +0.46% | 15,800 | - | +0.34% |
| 09/16 | 873 | 880 | 871 | 876 | -0.23% | 11,900 | - | +0.11% |
| 09/15 | 873 | 885 | 867 | 878 | -0.79% | 29,800 | - | +0.69% |
| 09/14 | 889 | 890 | 880 | 885 | -0.56% | 11,000 | - | +1.96% |
| 09/11 | 850 | 890 | 850 | 890 | +3.13% | 34,800 | - | +3.01% |
| 09/10 | 865 | 866 | 838 | 863 | -0.8% | 19,900 | - | +0.47% |
| 09/09 | 866 | 870 | 865 | 870 | -0.46% | 10,200 | - | +1.75% |
| 09/08 | 865 | 874 | 865 | 874 | +0.92% | 25,600 | - | +2.58% |
| 09/07 | 881 | 885 | 866 | 866 | -1.59% | 11,700 | - | +2.12% |
| 09/04 | 894 | 894 | 880 | 880 | -0.56% | 7,700 | - | +4.27% |
| 09/03 | 895 | 899 | 884 | 885 | -1.12% | 12,800 | - | +5.36% |
| 09/02 | 893 | 895 | 886 | 895 | +1.02% | 7,200 | - | +7.06% |
| 09/01 | 888 | 896 | 880 | 886 | -0.11% | 86,600 | - | +6.62% |
| 08/31 | 886 | 887 | 876 | 887 | +0.45% | 6,400 | - | +7.13% |
| 08/28 | 880 | 885 | 874 | 883 | +0.91% | 8,200 | - | +7.16% |
| 08/27 | 881 | 881 | 869 | 875 | +0.23% | 9,100 | - | +6.71% |
| 08/26 | 880 | 880 | 872 | 873 | +0.11% | 8,800 | - | +6.99% |
| 08/25 | 883 | 883 | 871 | 872 | -1.25% | 9,100 | - | +7.26% |
| 08/24 | (IR情報)16:00 資金の借入に関するお知らせ |
| 08/24 | (IR情報)16:00 取締役候補者及び監査役候補者の選任に関するお知らせ |
| 08/24 | (IR情報)16:00 定款一部変更に関するお知らせ |
| 08/24 | (IR情報)16:00 剰余金の配当に関するお知らせ |
| 08/24 | 891 | 896 | 880 | 883 | -0.79% | 13,100 | - | +9.15% |
| 08/21 | 881 | 895 | 881 | 890 | +0.23% | 27,400 | - | +10.42% |
| 08/20 | 869 | 888 | 860 | 888 | +3.26% | 17,100 | - | +10.72% |
| 08/19 | 864 | 869 | 858 | 860 | -1.26% | 11,900 | - | +7.77% |
| 08/18 | 875 | 876 | 860 | 871 | -1.25% | 26,200 | - | +9.7% |
| 08/17 | 905 | 915 | 873 | 882 | +6.27% | 104,200 | - | +11.36% |
| 08/14 | (IR情報)16:00 期末配当予想の修正に関するお知らせ |
| 08/14 | (IR情報)16:00 2026年6月期決算短信〔日本基準〕(連結) |
| 08/14 | 834 | 835 | 806 | 830 | -0.48% | 19,700 | - | +5.33% |
| 08/13 | 805 | 835 | 804 | 834 | +4.77% | 40,900 | - | +5.97% |
| 08/12 | 790 | 805 | 781 | 796 | +0.89% | 15,700 | - | +1.4% |
| 08/10 | 780 | 793 | 777 | 789 | +2.07% | 106,300 | - | +0.51% |
| 08/07 | 774 | 776 | 773 | 773 | +0.26% | 900 | - | -1.78% |
| 08/06 | 769 | 775 | 768 | 771 | 0% | 4,400 | - | -2.28% |
| 08/05 | 775 | 778 | 768 | 771 | -0.52% | 4,300 | - | -2.28% |
| 08/04 | 779 | 780 | 771 | 775 | -0.64% | 4,700 | - | -1.52% |
| 08/03 | 785 | 785 | 771 | 780 | +0.26% | 3,600 | - | -0.64% |
| 07/31 | 793 | 793 | 775 | 778 | -0.26% | 7,900 | - | -0.89% |
| 07/30 | 774 | 780 | 771 | 780 | +0.78% | 4,400 | - | -0.64% |
| 07/29 | (IR情報)15:40 令和8年熊本地震の影響に関するお知らせ |
| 07/29 | 780 | 789 | 773 | 774 | -0.13% | 10,400 | - | -1.4% |
| 07/28 | 797 | 800 | 775 | 775 | -3.25% | 23,200 | - | -1.27% |
| 07/27 | 789 | 801 | 788 | 801 | +1.01% | 3,100 | - | +2.04% |
| 07/24 | 798 | 811 | 776 | 793 | -0.38% | 33,200 | - | +1.28% |
| 07/23 | 784 | 796 | 782 | 796 | +2.84% | 97,700 | - | +1.66% |
| 07/22 | 793 | 793 | 774 | 774 | -1.28% | 5,300 | - | -0.77% |
| 07/21 | (IR情報)16:00 当社及び子会社の商号変更に関するお知らせ |
| 07/21 | 790 | 792 | 780 | 784 | +0.38% | 6,800 | - | +0.64% |
| 07/17 | (IR情報)16:00 (開示事項の経過)特殊電極株式会社株式取得完了に関するお知らせ |
| 07/17 | 795 | 795 | 773 | 781 | -1.64% | 7,900 | - | +0.64% |
| 07/16 | 791 | 798 | 791 | 794 | +0.25% | 2,300 | - | +2.72% |
| 07/15 | 793 | 798 | 790 | 792 | -0.13% | 6,100 | - | +2.86% |
| 07/14 | 771 | 793 | 770 | 793 | +2.85% | 24,400 | - | +3.52% |
| 07/13 | 790 | 791 | 771 | 771 | -3.99% | 25,200 | - | +1.05% |
| 07/10 | 801 | 807 | 800 | 803 | +0.5% | 8,600 | - | +5.66% |
| 07/09 | 791 | 799 | 791 | 799 | +1.01% | 8,800 | - | +5.55% |
| 07/08 | 792 | 792 | 780 | 791 | -0.5% | 12,400 | - | +5.05% |
| 07/07 | 800 | 804 | 787 | 795 | -0.63% | 10,200 | - | +6.14% |
| 07/06 | 830 | 830 | 780 | 800 | -3.61% | 38,500 | - | +7.38% |
| 07/03 | 840 | 840 | 770 | 830 | -0.6% | 82,000 | - | +12.01% |
| 07/02 | 805 | 895 | 805 | 835 | +11.48% | 222,500 | - | +13.3% |
| 07/01 | (IR情報)17:20 2026年6月期連結業績予想の修正に関するお知らせ |
| 07/01 | 750 | 750 | 735 | 749 | +1.9% | 4,500 | - | +2.32% |
| 07/01 | 株式分割 1→2 |
| 06/30 | 765 | 766 | 735 | 735 | +0.68% | 11,600 | - | +0.55% |
| 06/29 | 745 | 753 | 723 | 730 | -6.23% | 17,300 | - | 0% |
| 06/26 | 769 | 781 | 769 | 779 | -0.19% | 10,200 | - | +6.79% |
| 06/25 | 769 | 788 | 769 | 780 | +1.04% | 11,200 | - | +7.44% |
| 06/24 | 767 | 794 | 767 | 772 | +0.52% | 19,800 | - | +6.78% |
| 06/23 | 789 | 790 | 768 | 768 | -0.26% | 15,000 | - | +6.67% |
| 06/22 | 771 | 793 | 770 | 770 | +0.65% | 11,600 | - | +7.09% |
| 06/19 | 767 | 794 | 765 | 765 | -1.92% | 15,200 | - | +6.69% |
| 06/18 | (IR情報)16:00 完全子会社である連結子会社間の合併のお知らせ |
| 06/18 | (IR情報)16:00 取締役候補者及び監査役候補者の選任に関するお知らせ |
| 06/18 | 743 | 795 | 743 | 780 | +5.05% | 30,400 | - | +9.09% |
| 06/17 | 730 | 747 | 725 | 743 | +2.41% | 22,200 | - | +4.28% |
| 06/16 | 719 | 733 | 715 | 725 | +1.33% | 12,200 | - | +1.83% |
| 06/15 | 725 | 725 | 713 | 716 | +0.42% | 6,600 | - | +0.49% |
| 06/12 | 713 | 713 | 703 | 713 | +0.42% | 8,400 | - | +0.07% |
| 06/11 | 708 | 724 | 707 | 710 | +0.07% | 5,600 | - | -0.49% |
| 06/10 | 709 | 717 | 709 | 709 | -0.14% | 5,000 | - | -0.56% |
| 06/09 | 713 | 713 | 710 | 710 | +0.71% | 3,600 | - | -0.28% |
| 06/08 | 708 | 715 | 705 | 705 | -1.4% | 10,600 | - | -0.98% |
| 06/05 | 720 | 743 | 705 | 715 | +3.47% | 33,800 | - | +0.56% |
| 06/04 | 696 | 710 | 691 | 691 | -1.29% | 12,600 | - | -2.68% |
| 06/03 | 703 | 712 | 694 | 700 | +0.5% | 7,400 | - | -1.41% |
| 06/02 | 698 | 703 | 694 | 697 | -0.78% | 5,000 | - | -1.9% |
| 06/01 | 730 | 730 | 702 | 702 | -3.11% | 22,400 | - | -1.27% |
| 05/29 | (IR情報)16:00 株式取得(持分法適用関連会社化)のお知らせ |
| 05/29 | 728 | 730 | 722 | 725 | +1.54% | 7,400 | - | +1.9% |
| 05/28 | 729 | 730 | 714 | 714 | -1.45% | 11,000 | - | +0.35% |
| 05/27 | 712 | 732 | 712 | 724 | +0.84% | 11,000 | - | +1.69% |
| 05/26 | 702 | 718 | 701 | 718 | +2.06% | 3,800 | - | +0.84% |
| 05/26 | (IR情報)8:30 (訂正)「当社及び子会社の商号変更に関するお知らせ」の一部訂正について |
| 05/25 | (IR情報)16:00 当社及び子会社の商号変更に関するお知らせ |
| 05/25 | 706 | 710 | 690 | 704 | +1.15% | 8,200 | - | -1.19% |
| 05/22 | 700 | 709 | 688 | 696 | -1.7% | 7,000 | - | -2.45% |
| 05/21 | 710 | 715 | 700 | 708 | +1.29% | 31,400 | - | -1.05% |
| 05/20 | 724 | 727 | 699 | 699 | -4.32% | 18,000 | - | -2.44% |
| 05/19 | 719 | 733 | 719 | 730 | +1.53% | 28,000 | - | +1.67% |
| 05/18 | 743 | 743 | 717 | 719 | +0.56% | 15,800 | - | -0.14% |
| 05/15 | (IR情報)16:00 期末配当予想の修正に関するお知らせ |
| 05/15 | (IR情報)16:00 2026年6月期第3四半期決算短信〔日本基準〕(連結) |
| 05/15 | 731 | 732 | 710 | 715 | -1.11% | 24,600 | - | -0.83% |
| 05/14 | 726 | 737 | 723 | 723 | -0.34% | 14,200 | - | +0.14% |
| 05/13 | 725 | 733 | 723 | 726 | +0.07% | 15,200 | - | +0.48% |
| 05/12 | 731 | 740 | 725 | 725 | -0.75% | 12,200 | - | +0.42% |
| 05/11 | 726 | 737 | 726 | 731 | +1.04% | 10,000 | - | +1.04% |