| 2022 |
| 04/04 | 849 | 864 | 843 | 853 | +0.83% | 74,200 | 483億4132万 | +2.03% |
| 04/01 | 843 | 849 | 837 | 846 | +0.83% | 41,000 | 479億4461万 | +1.44% |
| 03/31 | (IR情報)13:00 支配株主等に関する事項について |
| 03/31 | 844 | 850 | 837 | 839 | -1.12% | 57,600 | 475億4791万 | +0.84% |
| 03/30 | (IR情報)14:00 譲渡制限付株式報酬としての自己株式の処分に関するお知らせ |
| 03/30 | 870 | 870 | 832 | 849 | -2.75% | 127,000 | 480億8629万 | +2.23% |
| 03/29 | 865 | 875 | 860 | 873 | -0.17% | 106,800 | 494億4642万 | +5.37% |
| 03/28 | 862 | 880 | 859 | 874 | +1.98% | 118,400 | 495億3143万 | +6.07% |
| 03/25 | 847 | 861 | 844 | 857 | +1.66% | 77,400 | 485億6800万 | +4.38% |
| 03/24 | 834 | 844 | 827 | 843 | +1.32% | 72,000 | 477億7459万 | +3.06% |
| 03/23 | 837 | 837 | 824 | 832 | +0.18% | 66,800 | 471億5120万 | +2.09% |
| 03/22 | 825 | 835 | 823 | 831 | +1.28% | 96,600 | 470億6619万 | +2.03% |
| 03/18 | 813 | 825 | 808 | 820 | +0.92% | 73,800 | 464億7114万 | +1.11% |
| 03/17 | 832 | 832 | 806 | 813 | -2.11% | 108,400 | 460億4609万 | +0.43% |
| 03/16 | 826 | 844 | 810 | 830 | +1.1% | 124,200 | 470億3786万 | +2.72% |
| 03/15 | 820 | 831 | 810 | 821 | -1.85% | 75,000 | 465億2781万 | +1.99% |
| 03/14 | 830 | 849 | 798 | 837 | +1.33% | 229,400 | 474億623万 | +4.04% |
| 03/11 | 830 | 831 | 812 | 826 | -1.26% | 79,200 | 467億8283万 | +3.06% |
| 03/10 | 809 | 837 | 808 | 836 | +3.98% | 92,800 | 473億7789万 | +4.76% |
| 03/09 | 818 | 818 | 797 | 804 | -1.95% | 96,000 | 455億6438万 | +1.01% |
| 03/08 | 850 | 850 | 808 | 820 | -4.48% | 171,600 | 464億7114万 | +3.27% |
| 03/07 | 887 | 887 | 853 | 859 | +1% | 262,800 | 486億5301万 | +8.53% |
| 03/04 | 845 | 885 | 830 | 850 | +0.24% | 259,400 | 481億7130万 | +8.28% |
| 03/03 | 845 | 875 | 840 | 848 | +2.73% | 252,400 | 480億5795万 | +8.58% |
| 03/02 | 813 | 844 | 813 | 826 | +1.54% | 118,200 | 467億8283万 | +6.24% |
| 03/01 | 813 | 820 | 809 | 813 | +0.49% | 63,200 | 460億7443万 | +5.04% |
| 02/28 | 798 | 813 | 793 | 809 | +2.34% | 67,400 | 458億4774万 | +5.06% |
| 02/25 | 802 | 802 | 785 | 791 | -2.17% | 55,600 | 447億9931万 | +3.06% |
| 02/24 | 793 | 810 | 776 | 808 | +3.26% | 89,000 | 457億9107万 | +5.76% |
| 02/22 | (IR情報)16:30 譲渡制限付株式報酬制度の導入に関するお知らせ |
| 02/22 | (IR情報)16:30 定款一部変更に関するお知らせ |
| 02/22 | 783 | 795 | 780 | 783 | -1.2% | 30,400 | 443億4593万 | +2.83% |
| 02/21 | 788 | 794 | 788 | 792 | +0.57% | 25,600 | 448億8432万 | +4.35% |
| 02/18 | (IR情報)17:00 新しい「経営理念」、「2030年に向けた経営方針」、及びそれらに基づく「中期経営計画(中計2024)」の策定について |
| 02/18 | 778 | 795 | 774 | 788 | +0.9% | 43,800 | 446億2929万 | +4.17% |
| 02/17 | 790 | 790 | 777 | 781 | -0.95% | 21,800 | 442億3259万 | +3.65% |
| 02/16 | 782 | 791 | 782 | 788 | +0.64% | 33,200 | 446億5763万 | +4.93% |
| 02/15 | 788 | 799 | 778 | 783 | -0.32% | 46,600 | 443億7427万 | +4.54% |
| 02/14 | 770 | 791 | 763 | 786 | +1.62% | 59,800 | 445億1595万 | +5.29% |
| 02/10 | (IR情報)16:00 2021年12月期決算短信〔日本基準〕(連結) |
| 02/10 | 776 | 776 | 764 | 773 | +0.52% | 37,200 | 438億755万 | +4.04% |
| 02/09 | 780 | 780 | 766 | 769 | -1.03% | 36,200 | 435億8086万 | +3.78% |
| 02/08 | 770 | 779 | 769 | 777 | +0.91% | 36,000 | 440億3423万 | +5.14% |
| 02/07 | 782 | 782 | 767 | 770 | -0.96% | 64,600 | 436億3753万 | +4.48% |
| 02/04 | 774 | 783 | 774 | 778 | +0.52% | 28,600 | 440億6257万 | +5.78% |
| 02/03 | 761 | 775 | 760 | 774 | +1.71% | 26,400 | 438億3588万 | +5.53% |
| 02/02 | 778 | 782 | 759 | 761 | -1.36% | 50,200 | 430億9914万 | +3.89% |
| 02/01 | 755 | 774 | 754 | 771 | +2.32% | 65,800 | 436億9420万 | +5.47% |
| 01/31 | 741 | 754 | 740 | 754 | +1.82% | 30,400 | 427億244万 | +3.36% |
| 01/28 | 738 | 740 | 731 | 740 | +1.79% | 33,800 | 419億3737万 | +1.65% |
| 01/27 | 749 | 749 | 718 | 727 | -1.96% | 71,200 | 412億63万 | 0% |
| 01/26 | 751 | 755 | 739 | 742 | -0.94% | 49,600 | 420億2237万 | +1.99% |
| 01/25 | 743 | 772 | 743 | 749 | +0.47% | 130,000 | 424億1908万 | +2.96% |
| 01/24 | 726 | 746 | 724 | 745 | +2.41% | 56,200 | 422億2073万 | +2.48% |
| 01/21 | 722 | 729 | 718 | 728 | +0.55% | 34,800 | 412億2896万 | +0.07% |
| 01/20 | 723 | 734 | 723 | 724 | +0.14% | 46,000 | 410億228万 | -0.48% |
| 01/19 | 727 | 734 | 719 | 723 | -0.62% | 58,600 | 409億4560万 | -0.62% |
| 01/18 | 725 | 733 | 722 | 727 | +0.97% | 39,600 | 412億63万 | -0.14% |
| 01/17 | 723 | 728 | 719 | 720 | +0.21% | 16,800 | 408億392万 | -1.1% |
| 01/14 | 723 | 725 | 716 | 719 | -0.69% | 53,800 | 407億1891万 | -1.44% |
| 01/13 | 727 | 739 | 724 | 724 | -0.55% | 48,200 | 410億228万 | -0.89% |
| 01/12 | 728 | 736 | 727 | 728 | -0.07% | 46,800 | 412億2896万 | -0.34% |
| 01/11 | 718 | 730 | 712 | 728 | +1.61% | 51,000 | 412億5730万 | -0.41% |
| 01/07 | 715 | 719 | 712 | 717 | +0.42% | 65,800 | 406億557万 | -1.98% |
| 01/06 | 721 | 722 | 712 | 714 | -1.52% | 47,000 | 404億3555万 | -2.53% |
| 01/05 | (5%ルール)シンフォニー・フィナンシャル・パートナーズ(シン…(10.32%) |
| 01/05 | 722 | 726 | 718 | 725 | +0.28% | 68,800 | 410億5895万 | -1.16% |
| 01/04 | 729 | 729 | 714 | 723 | +0.63% | 61,600 | 409億4560万 | -1.7% |
| 2021 |
| 12/30 | 733 | 733 | 717 | 718 | -2.05% | 46,600 | 406億9058万 | -2.45% |
| 12/29 | 727 | 733 | 720 | 733 | +0.34% | 126,800 | 415億4066万 | -0.68% |
| 12/28 | 734 | 737 | 724 | 731 | +0.83% | 73,800 | 413億9898万 | -1.15% |
| 12/27 | 737 | 737 | 721 | 725 | -1.63% | 96,000 | 410億5895万 | -2.09% |
| 12/24 | 740 | 744 | 734 | 737 | +0.2% | 128,400 | 417億3901万 | -0.61% |
| 12/23 | 731 | 736 | 729 | 735 | +1.03% | 34,400 | 416億5400万 | -0.81% |
| 12/22 | 722 | 733 | 718 | 728 | +1.25% | 40,200 | 412億2896万 | -1.82% |
| 12/21 | 736 | 736 | 712 | 719 | -0.9% | 80,400 | 407億1891万 | -3.17% |
| 12/20 | (IR情報)13:30 「K&Oヨウ素株式会社」事業開始のお知らせ ~世界のヨウ素メジャーを目指して~ |
| 12/20 | 741 | 741 | 725 | 725 | -2.36% | 47,000 | 410億8728万 | -2.68% |
| 12/17 | 745 | 751 | 742 | 743 | -0.34% | 28,800 | 420億7905万 | -0.47% |
| 12/16 | 740 | 749 | 740 | 745 | +1.15% | 48,200 | 422億2073万 | -0.27% |
| 12/15 | 731 | 743 | 731 | 737 | +1.03% | 29,800 | 417億3901万 | -1.54% |
| 12/14 | 727 | 740 | 715 | 729 | +0.34% | 61,200 | 413億1397万 | -2.8% |
| 12/13 | 742 | 743 | 722 | 727 | -1.89% | 93,800 | 411億7229万 | -3.52% |
| 12/10 | 762 | 762 | 737 | 741 | -0.8% | 37,800 | 419億6570万 | -2.05% |
| 12/09 | 740 | 747 | 735 | 747 | +0.81% | 33,400 | 423億573万 | -1.52% |
| 12/08 | 749 | 749 | 733 | 741 | -0.27% | 87,800 | 419億6570万 | -2.69% |
| 12/07 | 739 | 747 | 733 | 743 | +1.71% | 73,800 | 420億7905万 | -2.81% |
| 12/06 | 741 | 754 | 728 | 730 | -0.34% | 61,000 | 413億7064万 | -4.82% |
| 12/03 | 736 | 742 | 722 | 733 | -1.94% | 104,800 | 444億4232万 | -4.87% |
| 12/02 | 733 | 761 | 729 | 747 | +2.12% | 66,400 | 453億2207万 | -3.49% |
| 12/01 | 749 | 750 | 730 | 732 | -2.6% | 64,600 | 443億8165万 | -5.86% |
| 11/30 | 752 | 772 | 751 | 751 | +0.13% | 44,600 | 455億6476万 | -3.84% |
| 11/29 | 763 | 764 | 744 | 750 | -2.02% | 70,800 | 455億409万 | -4.21% |
| 11/26 | 761 | 768 | 754 | 766 | +0.53% | 54,000 | 464億4450万 | -2.61% |
| 11/25 | 760 | 765 | 758 | 762 | +0.4% | 22,800 | 462億182万 | -3.36% |
| 11/24 | 770 | 772 | 758 | 759 | -0.2% | 36,200 | 460億1980万 | -4.23% |
| 11/22 | 741 | 766 | 741 | 760 | +2.7% | 50,200 | 461億1081万 | -4.4% |
| 11/19 | 738 | 742 | 729 | 740 | +0.07% | 30,400 | 448億9737万 | -7.15% |
| 11/18 | 743 | 744 | 730 | 740 | -0.6% | 46,800 | 448億6703万 | -7.45% |
| 11/17 | 755 | 756 | 744 | 744 | -1.85% | 35,200 | 451億4005万 | -7.23% |
| 11/16 | 774 | 778 | 755 | 758 | -2.07% | 69,200 | 459億8946万 | -5.72% |
| 11/15 | 753 | 783 | 753 | 774 | +3.13% | 77,000 | 469億6022万 | -4.09% |
| 11/12 | 756 | 762 | 744 | 751 | -2.09% | 61,000 | 455億3442万 | -7.23% |
| 11/11 | (IR情報)16:30 新市場区分における「プライム市場」選択及び上場維持基準の適合に向けた計画書について |
| 11/11 | (IR情報)16:30 2021年12月期第3四半期決算短信〔日本基準〕(連結) |
| 11/11 | 759 | 776 | 759 | 767 | -0.71% | 31,600 | 465億518万 | -5.37% |
| 11/10 | 791 | 792 | 770 | 772 | -2.53% | 53,000 | 468億3887万 | -4.93% |
| 11/09 | 796 | 800 | 791 | 792 | -1.31% | 21,400 | 480億5232万 | -2.22% |
| 11/08 | 790 | 807 | 786 | 803 | +1.2% | 48,200 | 486億8937万 | -0.56% |
| 11/05 | 803 | 804 | 792 | 793 | -2.22% | 44,600 | 481億1299万 | -1.25% |