| 2026 |
| 03/06 | (IR情報)14:00 監査等委員である取締役の異動に関するお知らせ |
| 03/06 | 798 | 803 | 787 | 801 | -0.62% | 78,200 | 278億4276万 | -5.88% |
| 03/05 | 799 | 807 | 795 | 806 | +2.81% | 108,100 | 280億1656万 | -5.62% |
| 03/04 | 791 | 791 | 769 | 784 | -2.73% | 301,900 | 272億5184万 | -8.52% |
| 03/03 | 828 | 828 | 806 | 806 | -2.77% | 176,500 | 280億1656万 | -6.39% |
| 03/02 | 839 | 839 | 824 | 829 | -1.89% | 155,500 | 288億1604万 | -4.16% |
| 02/27 | (IR情報)11:00 2025年12月期 決算説明会等における主な質疑応答 |
| 02/27 | 837 | 846 | 835 | 845 | +0.84% | 76,600 | 293億7220万 | -2.65% |
| 02/26 | 842 | 846 | 835 | 838 | -0.12% | 99,900 | 291億2888万 | -3.68% |
| 02/25 | 850 | 850 | 838 | 839 | -0.71% | 81,500 | 291億6364万 | -4% |
| 02/24 | 836 | 846 | 831 | 845 | +1.08% | 83,800 | 293億7220万 | -3.65% |
| 02/20 | 850 | 850 | 836 | 836 | -1.88% | 90,800 | 290億5936万 | -4.89% |
| 02/19 | 856 | 856 | 844 | 852 | -0.12% | 67,100 | 296億1552万 | -3.29% |
| 02/18 | 852 | 856 | 850 | 853 | +0.12% | 49,100 | 296億5028万 | -3.29% |
| 02/17 | 848 | 858 | 838 | 852 | +2.28% | 163,400 | 296億1552万 | -3.51% |
| 02/16 | (IR情報)10:10 (訂正)「2025年12月期決算説明会資料」の一部訂正について |
| 02/16 | 839 | 849 | 824 | 833 | -5.23% | 462,300 | 289億5508万 | -5.77% |
| 02/13 | (IR情報)18:10 2025年12月期決算説明会資料 |
| 02/13 | (IR情報)15:30 2025年12月期決算短信〔日本基準〕(非連結) |
| 02/13 | (IR情報)15:30 「2025年12月期決算、2026年12月期見通し」に関する社長対談動画を配信 |
| 02/13 | 896 | 898 | 872 | 879 | -2.22% | 127,800 | 305億5404万 | -0.79% |
| 02/12 | 880 | 899 | 879 | 899 | +1.47% | 100,800 | 312億4924万 | +1.47% |
| 02/10 | 874 | 887 | 871 | 886 | +1.96% | 84,900 | 307億9736万 | +0.23% |
| 02/09 | 877 | 879 | 868 | 869 | -0.23% | 108,900 | 302億644万 | -1.7% |
| 02/06 | 881 | 881 | 870 | 871 | -1.02% | 84,700 | 302億7596万 | -1.36% |
| 02/05 | 879 | 884 | 875 | 880 | +0.23% | 85,000 | 305億8880万 | -0.45% |
| 02/04 | 872 | 879 | 870 | 878 | +0.23% | 67,000 | 305億1928万 | -0.68% |
| 02/03 | 881 | 883 | 870 | 876 | +0.57% | 74,800 | 304億4976万 | -1.02% |
| 02/02 | 885 | 889 | 871 | 871 | -1.47% | 70,400 | 302億7596万 | -1.69% |
| 01/30 | 871 | 888 | 870 | 884 | +1.49% | 90,900 | 307億2784万 | -0.34% |
| 01/29 | 873 | 873 | 860 | 871 | -0.23% | 54,200 | 302億7596万 | -1.8% |
| 01/28 | 882 | 882 | 872 | 873 | -1.13% | 96,800 | 303億4548万 | -1.69% |
| 01/27 | 885 | 889 | 877 | 883 | 0% | 57,900 | 306億9308万 | -0.67% |
| 01/26 | 897 | 897 | 883 | 883 | -1.78% | 95,800 | 306億9308万 | -0.67% |
| 01/23 | (IR情報)16:00 現場発泡ウレタン断熱材で「アクアフォームシリーズ」が 国内初のEPD(環境製品宣言)を取得 |
| 01/23 | 908 | 911 | 898 | 899 | -0.99% | 54,300 | 312億4924万 | +1.12% |
| 01/22 | 908 | 910 | 896 | 908 | +0.67% | 64,000 | 315億6208万 | +2.25% |
| 01/21 | 903 | 908 | 894 | 902 | -1.74% | 97,700 | 313億5352万 | +1.69% |
| 01/20 | 925 | 925 | 910 | 918 | -0.76% | 126,600 | 319億968万 | +3.73% |
| 01/19 | 900 | 925 | 900 | 925 | +4.28% | 379,100 | 321億5300万 | +4.76% |
| 01/16 | (IR情報)16:00 日本アクア「CDP 2025年度気候変動調査」で2年連続Bスコア獲得 |
| 01/16 | 888 | 888 | 883 | 887 | +0.57% | 38,000 | 308億3212万 | +0.68% |
| 01/15 | 885 | 890 | 882 | 882 | -0.56% | 60,500 | 306億5832万 | +0.23% |
| 01/14 | 883 | 890 | 882 | 887 | +0.45% | 65,600 | 308億3212万 | +0.91% |
| 01/13 | 884 | 887 | 877 | 883 | +0.23% | 104,400 | 306億9308万 | +0.57% |
| 01/09 | (5%ルール)SBI証券(0.46%)SBIアセットマネジメント(4.89%) |
| 01/09 | 880 | 884 | 875 | 881 | +0.46% | 43,300 | 306億2356万 | +0.46% |
| 01/08 | 872 | 882 | 867 | 877 | +0.8% | 99,600 | 304億8452万 | +0.11% |
| 01/07 | 865 | 872 | 860 | 870 | +0.23% | 73,500 | 302億4120万 | -0.68% |
| 01/06 | 871 | 874 | 865 | 868 | +0.35% | 97,400 | 301億7168万 | -0.91% |
| 01/05 | 863 | 870 | 863 | 865 | +0.23% | 106,000 | 300億6740万 | -1.26% |
| 2025 |
| 12/30 | 874 | 875 | 861 | 863 | -1.26% | 165,100 | 299億9788万 | -1.48% |
| 12/29 | 854 | 880 | 854 | 874 | -2.46% | 416,200 | 303億8024万 | -0.23% |
| 12/26 | 905 | 907 | 895 | 896 | -0.67% | 378,300 | 311億4496万 | +2.4% |
| 12/25 | (IR情報)15:30 従業員に対する譲渡制限付株式としての自己株式処分の払込完了および一部失権に関するお知らせ |
| 12/25 | 899 | 903 | 897 | 902 | +0.67% | 139,200 | 313億5352万 | +3.32% |
| 12/24 | 896 | 899 | 893 | 896 | 0% | 82,600 | 311億4496万 | +2.87% |
| 12/23 | 896 | 898 | 892 | 896 | +0.45% | 85,800 | 311億4496万 | +3.11% |
| 12/22 | 903 | 903 | 885 | 892 | -0.67% | 134,900 | 310億592万 | +2.76% |
| 12/19 | 898 | 903 | 895 | 898 | +0.11% | 114,800 | 312億1448万 | +3.7% |
| 12/18 | 882 | 898 | 877 | 897 | +2.4% | 172,300 | 311億7972万 | +3.7% |
| 12/17 | 884 | 884 | 868 | 876 | -0.9% | 140,700 | 304億4976万 | +1.51% |
| 12/16 | (IR情報)13:00 組織改正、執行役員および部長級以上の人事異動に関するお知らせ |
| 12/16 | 883 | 889 | 880 | 884 | 0% | 145,400 | 307億2784万 | +2.43% |
| 12/15 | 876 | 887 | 875 | 884 | +0.91% | 90,300 | 307億2784万 | +2.55% |
| 12/12 | 866 | 879 | 864 | 876 | +1.86% | 122,100 | 304億4976万 | +1.39% |
| 12/11 | 864 | 869 | 858 | 860 | -0.46% | 70,100 | 298億9360万 | -0.81% |
| 12/10 | 863 | 867 | 860 | 864 | +0.12% | 36,800 | 300億3264万 | -0.8% |
| 12/09 | 868 | 870 | 859 | 863 | -0.58% | 82,100 | 299億9788万 | -1.26% |
| 12/08 | 858 | 869 | 854 | 868 | +1.88% | 70,300 | 301億7168万 | -1.03% |
| 12/05 | 859 | 860 | 852 | 852 | -0.81% | 78,800 | 296億1552万 | -3.07% |
| 12/04 | 861 | 865 | 857 | 859 | -0.35% | 103,500 | 298億5884万 | -2.5% |
| 12/03 | 870 | 870 | 860 | 862 | -0.35% | 79,800 | 299億6312万 | -2.49% |
| 12/02 | 875 | 878 | 865 | 865 | -0.35% | 75,300 | 300億6740万 | -2.48% |
| 12/01 | 884 | 884 | 868 | 868 | -0.91% | 166,900 | 301億7168万 | -2.47% |
| 11/28 | 868 | 879 | 866 | 876 | +1.15% | 109,300 | 304億4976万 | -1.79% |
| 11/27 | 863 | 867 | 860 | 866 | +0.7% | 42,100 | 301億216万 | -3.13% |
| 11/26 | 863 | 867 | 858 | 860 | -0.12% | 76,600 | 298億9360万 | -4.02% |
| 11/25 | 862 | 862 | 855 | 861 | +0.58% | 51,300 | 299億2836万 | -4.01% |
| 11/21 | 851 | 861 | 850 | 856 | +0.47% | 128,600 | 297億5456万 | -4.68% |
| 11/20 | 852 | 856 | 847 | 852 | +0.95% | 90,000 | 296億1552万 | -5.33% |
| 11/19 | 848 | 849 | 841 | 844 | -0.12% | 95,500 | 293億3744万 | -6.33% |
| 11/18 | 857 | 859 | 845 | 845 | -2.09% | 175,900 | 293億7220万 | -6.42% |
| 11/17 | (IR情報)15:30 従業員に対する譲渡制限付株式としての自己株式処分に関するお知らせ |
| 11/17 | 860 | 863 | 857 | 863 | +0.7% | 171,400 | 299億9788万 | -4.54% |
| 11/14 | 857 | 863 | 854 | 857 | -0.35% | 131,200 | 297億8932万 | -5.41% |
| 11/13 | 868 | 874 | 858 | 860 | -0.69% | 172,400 | 298億9360万 | -5.29% |
| 11/12 | 856 | 876 | 853 | 866 | +1.29% | 284,200 | 301億216万 | -4.84% |
| 11/11 | 861 | 862 | 844 | 855 | -0.58% | 304,100 | 297億1980万 | -6.25% |
| 11/10 | 869 | 896 | 854 | 860 | -8.9% | 748,000 | 298億9360万 | -5.81% |
| 11/07 | (IR情報)15:30 2025年12月期第3四半期決算説明会資料 |
| 11/07 | (IR情報)15:30 2025年12月期第3四半期決算短信〔日本基準〕(非連結) |
| 11/07 | 953 | 953 | 942 | 944 | -0.94% | 93,800 | 328億1344万 | +3.28% |
| 11/06 | 949 | 955 | 945 | 953 | +0.95% | 97,400 | 331億2628万 | +4.5% |
| 11/05 | 944 | 945 | 924 | 944 | +0.11% | 73,100 | 328億1344万 | +3.62% |
| 11/04 | 939 | 949 | 921 | 943 | +0.86% | 137,300 | 327億7868万 | +3.63% |
| 10/31 | 931 | 935 | 915 | 935 | +0.86% | 71,600 | 325億60万 | +2.86% |
| 10/30 | 913 | 930 | 910 | 927 | +1.76% | 98,500 | 322億2252万 | +2.09% |
| 10/29 | 935 | 935 | 904 | 911 | -1.51% | 50,100 | 316億6636万 | +0.44% |
| 10/28 | 937 | 937 | 920 | 925 | -1.8% | 68,700 | 321億5300万 | +1.98% |
| 10/27 | 930 | 942 | 928 | 942 | +1.29% | 83,500 | 327億4392万 | +3.86% |
| 10/24 | 930 | 932 | 921 | 930 | -0.11% | 62,200 | 323億2680万 | +2.76% |
| 10/23 | 930 | 931 | 920 | 931 | +0.11% | 47,300 | 323億6156万 | +2.87% |
| 10/22 | 900 | 931 | 900 | 930 | +3.68% | 117,800 | 323億2680万 | +2.88% |
| 10/21 | 900 | 907 | 896 | 897 | +0.22% | 57,600 | 311億7972万 | -0.66% |
| 10/20 | (IR情報)14:50 国際規格ASTM E2178に準じた建材気密試験を実施 |
| 10/20 | 890 | 902 | 890 | 895 | +0.79% | 72,800 | 311億1020万 | -1% |
| 10/17 | 894 | 900 | 887 | 888 | -1% | 32,000 | 308億6688万 | -1.88% |
| 10/16 | 900 | 904 | 892 | 897 | +0.56% | 34,900 | 311億7972万 | -0.99% |
| 10/15 | 879 | 897 | 879 | 892 | +1.48% | 107,500 | 310億592万 | -1.76% |
| 10/14 | 876 | 885 | 871 | 879 | -0.45% | 78,600 | 305億5404万 | -3.41% |
| 10/10 | 903 | 903 | 883 | 883 | -2.21% | 110,800 | 306億9308万 | -3.18% |
| 10/09 | 910 | 912 | 900 | 903 | -0.66% | 67,500 | 313億8828万 | -1.31% |
| 10/08 | 902 | 916 | 902 | 909 | -0.22% | 57,700 | 315億9684万 | -0.76% |
| 10/07 | 906 | 918 | 904 | 911 | +0.66% | 70,900 | 316億6636万 | -0.65% |