| 2026 |
| 10/02 | 887 | 894 | 876 | 883 | -2.11% | 185,400 | - | -1.89% |
| 10/01 | (IR情報)15:30 株式会社IBJ(結婚相談所事業)2026年9月KPIについて |
| 10/01 | 882 | 912 | 878 | 902 | +1.81% | 189,700 | - | 0% |
| 09/30 | 866 | 888 | 864 | 886 | +2.07% | 113,600 | - | -1.99% |
| 09/29 | 867 | 872 | 856 | 868 | -1.03% | 199,500 | - | -4.19% |
| 09/28 | 882 | 885 | 873 | 877 | -1.46% | 128,700 | - | -3.52% |
| 09/25 | (5%ルール)アイエス(0.34%)石坂茂(25.51%) |
| 09/25 | 906 | 909 | 885 | 890 | -2.63% | 188,300 | - | -2.31% |
| 09/24 | 915 | 929 | 911 | 914 | +0.22% | 248,500 | - | 0% |
| 09/18 | 905 | 917 | 897 | 912 | -0.65% | 205,500 | - | -0.33% |
| 09/17 | 904 | 918 | 898 | 918 | +2.46% | 169,900 | - | +0.66% |
| 09/16 | 888 | 902 | 883 | 896 | -0.22% | 265,400 | - | -1.54% |
| 09/15 | 880 | 899 | 880 | 898 | +1.35% | 237,200 | - | -1.1% |
| 09/14 | 850 | 890 | 850 | 886 | +4.24% | 185,700 | - | -2.21% |
| 09/11 | 850 | 859 | 843 | 850 | -1.62% | 248,500 | - | -5.87% |
| 09/10 | 858 | 868 | 846 | 864 | +2.49% | 235,000 | - | -4.21% |
| 09/09 | 841 | 855 | 837 | 843 | -1.17% | 381,300 | - | -6.33% |
| 09/08 | 900 | 901 | 847 | 853 | -6.78% | 635,600 | - | -5.12% |
| 09/07 | (5%ルール)アイエス(0.29%)石坂茂(28.21%) |
| 09/07 | (5%ルール)アイエス(0.34%)石坂茂(27.65%) |
| 09/07 | (5%ルール)アイエス(0.34%)石坂茂(26.57%) |
| 09/07 | 936 | 936 | 914 | 915 | -2.14% | 179,100 | - | +1.89% |
| 09/04 | 915 | 951 | 915 | 935 | +2.19% | 273,100 | - | +4.59% |
| 09/03 | 913 | 918 | 907 | 915 | +0.55% | 130,600 | - | +2.81% |
| 09/02 | 944 | 944 | 910 | 910 | -4.01% | 353,400 | - | +2.71% |
| 09/01 | (IR情報)15:30 株式会社IBJ(結婚相談所事業)2026年8月KPIについて |
| 09/01 | 942 | 965 | 940 | 948 | -0.94% | 247,900 | - | +7.48% |
| 08/31 | 905 | 962 | 901 | 957 | +4.13% | 394,100 | - | +9.12% |
| 08/28 | 929 | 941 | 914 | 919 | -1.29% | 213,100 | - | +5.51% |
| 08/28 | (空売り報告)J.P. MORGAN SECURITIES PLC 220,000株(0.52%)新規 |
| 08/27 | 931 | 952 | 917 | 931 | +0.87% | 260,600 | - | +7.38% |
| 08/26 | 928 | 949 | 919 | 923 | -1.07% | 184,700 | - | +6.95% |
| 08/25 | 944 | 944 | 918 | 933 | -1.48% | 217,700 | - | +8.49% |
| 08/24 | 967 | 970 | 943 | 947 | -0.84% | 213,100 | - | +10.63% |
| 08/21 | (5%ルール)SMBC日興証券(0.39%)三井住友DSアセットマネジメント(4.76%) |
| 08/21 | 950 | 970 | 938 | 955 | +0.74% | 323,200 | - | +12.09% |
| 08/20 | 930 | 950 | 921 | 948 | +2.6% | 396,300 | - | +11.66% |
| 08/19 | 965 | 966 | 922 | 924 | -4.05% | 509,600 | - | +9.22% |
| 08/18 | 942 | 976 | 933 | 963 | +2.45% | 1,176,300 | - | +14.23% |
| 08/17 | 888 | 955 | 882 | 940 | +11.77% | 2,310,200 | - | +12.04% |
| 08/14 | (IR情報)18:10 (訂正・数値データ訂正)「2026年12月期第2四半期(中間期)決算短信[日本基準](連結)」の一部訂正に関するお知らせ |
| 08/14 | (IR情報)15:30 配当予想の修正(増配)及び配当方針の決定(累進配当の導入)に関するお知らせ |
| 08/14 | (IR情報)15:30 業績予想と実績の差異及び通期連結業績予想の上方修正に関するお知らせ |
| 08/14 | (IR情報)15:30 2026年12月期2Q決算説明資料 |
| 08/14 | (IR情報)15:30 2026年12月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 08/14 | 851 | 851 | 827 | 841 | -1.87% | 339,900 | - | +0.84% |
| 08/13 | 852 | 858 | 846 | 857 | +0.59% | 146,100 | - | +2.76% |
| 08/12 | 841 | 856 | 837 | 852 | +2.04% | 171,200 | - | +2.28% |
| 08/10 | (IR情報)18:00 「JPX日経中小型株指数」構成銘柄に継続選定のお知らせ |
| 08/10 | 827 | 840 | 824 | 835 | +0.97% | 140,200 | - | +0.36% |
| 08/07 | 830 | 831 | 822 | 827 | +1.1% | 96,000 | - | -0.48% |
| 08/06 | 815 | 827 | 811 | 818 | +0.12% | 158,200 | - | -1.45% |
| 08/05 | 817 | 824 | 816 | 817 | 0% | 114,900 | - | -1.45% |
| 08/04 | 817 | 822 | 812 | 817 | -0.37% | 98,200 | - | -1.21% |
| 08/03 | (IR情報)15:30 株式会社IBJ(結婚相談所事業)2026年7月KPIについて |
| 08/03 | 817 | 824 | 812 | 820 | -0.36% | 118,200 | - | -0.73% |
| 07/31 | 816 | 833 | 813 | 823 | +0.37% | 104,200 | - | -0.12% |
| 07/30 | 826 | 833 | 816 | 820 | -0.73% | 271,100 | - | -0.24% |
| 07/29 | 817 | 830 | 810 | 826 | +1.1% | 131,600 | - | +0.85% |
| 07/28 | 831 | 831 | 813 | 817 | -0.97% | 85,200 | - | +0.12% |
| 07/27 | 818 | 828 | 812 | 825 | +2.74% | 110,100 | - | +1.35% |
| 07/24 | 812 | 816 | 796 | 803 | -1.59% | 222,100 | - | -1.23% |
| 07/23 | (5%ルール)SMBC日興証券(0.41%)三井住友DSアセットマネジメント(3.99%) |
| 07/23 | 829 | 830 | 812 | 816 | -1.57% | 158,600 | - | +0.62% |
| 07/22 | 841 | 841 | 825 | 829 | -1.31% | 172,100 | - | +2.35% |
| 07/21 | 838 | 847 | 833 | 840 | +0.24% | 110,700 | - | +3.96% |
| 07/17 | 857 | 865 | 828 | 838 | -2.22% | 199,600 | - | +3.97% |
| 07/16 | 885 | 890 | 857 | 857 | -2.72% | 119,500 | - | +6.59% |
| 07/15 | 884 | 885 | 868 | 881 | +1.26% | 218,000 | - | +9.99% |
| 07/14 | 858 | 881 | 854 | 870 | +1.99% | 238,800 | - | +9.02% |
| 07/13 | 846 | 854 | 841 | 853 | +0.71% | 139,800 | - | +7.3% |
| 07/10 | (IR情報)15:30 特別損失(投資有価証券評価損)の計上に関するお知らせ |
| 07/10 | 829 | 847 | 821 | 847 | +2.79% | 126,800 | - | +6.94% |
| 07/09 | 826 | 834 | 817 | 824 | -1.44% | 108,400 | - | +4.3% |
| 07/08 | 835 | 844 | 826 | 836 | +1.21% | 161,300 | - | +6.09% |
| 07/07 | 825 | 840 | 824 | 826 | -0.72% | 109,400 | - | +4.96% |
| 07/06 | 814 | 835 | 811 | 832 | +2.21% | 158,500 | - | +5.72% |
| 07/03 | (5%ルール)中本哲宏(5.72%)TNnetwork(7.71%) |
| 07/03 | 810 | 817 | 806 | 814 | +1.24% | 126,700 | - | +3.56% |
| 07/02 | 801 | 810 | 797 | 804 | +2.68% | 149,600 | - | +2.29% |
| 07/01 | (IR情報)15:30 株式会社IBJ(結婚相談所事業)2026年6月KPIについて |
| 07/01 | 774 | 786 | 774 | 783 | +0.64% | 118,600 | - | -0.51% |
| 06/30 | 796 | 796 | 771 | 778 | -2.26% | 186,800 | - | -1.27% |
| 06/29 | 778 | 796 | 778 | 796 | +4.33% | 323,600 | - | +0.76% |
| 06/26 | 760 | 768 | 759 | 763 | +0.39% | 466,100 | - | -3.54% |
| 06/25 | 758 | 766 | 755 | 760 | +0.8% | 174,200 | - | -4.04% |
| 06/24 | 773 | 773 | 753 | 754 | -0.53% | 120,900 | - | -4.92% |
| 06/23 | 766 | 767 | 752 | 758 | -1.94% | 258,200 | - | -4.65% |
| 06/22 | 777 | 779 | 770 | 773 | -0.77% | 178,400 | - | -3.13% |
| 06/19 | 782 | 784 | 771 | 779 | +0.91% | 211,700 | - | -2.63% |
| 06/18 | 779 | 785 | 760 | 772 | -1.66% | 229,000 | - | -3.26% |
| 06/17 | 786 | 795 | 776 | 785 | +2.08% | 329,700 | - | -1.51% |
| 06/16 | 788 | 788 | 769 | 769 | -2.16% | 255,700 | - | -3.27% |
| 06/15 | 795 | 804 | 785 | 786 | -1.13% | 392,200 | - | -1.01% |
| 06/12 | (IR情報)15:30 子会社の商号変更のお知らせ |
| 06/12 | 792 | 797 | 788 | 795 | +0.25% | 302,200 | - | +0.25% |
| 06/11 | 797 | 799 | 777 | 793 | -1.37% | 263,500 | - | +0.25% |
| 06/10 | 800 | 815 | 794 | 804 | +1.13% | 290,100 | - | +2.03% |
| 06/09 | 787 | 795 | 773 | 795 | +1.27% | 233,500 | - | +1.27% |
| 06/08 | 806 | 808 | 777 | 785 | -0.76% | 219,800 | - | +0.38% |
| 06/05 | 795 | 799 | 784 | 791 | +1.28% | 145,000 | - | +1.54% |
| 06/04 | 792 | 795 | 762 | 781 | -2.38% | 275,200 | - | +0.51% |
| 06/03 | 816 | 816 | 799 | 800 | -2.44% | 175,900 | - | +3.23% |
| 06/02 | 821 | 823 | 803 | 820 | +1.74% | 195,700 | - | +6.08% |
| 06/01 | (IR情報)15:30 株式会社IBJ(結婚相談所事業)2026年5月KPIについて |
| 06/01 | 825 | 830 | 803 | 806 | -2.3% | 241,600 | - | +4.68% |
| 05/29 | 826 | 843 | 817 | 825 | +1.23% | 223,100 | - | +7.42% |
| 05/28 | 833 | 833 | 811 | 815 | -1.57% | 173,300 | - | +6.4% |
| 05/27 | 821 | 830 | 811 | 828 | +0.73% | 187,500 | - | +8.38% |
| 05/26 | 810 | 826 | 808 | 822 | +1.36% | 192,300 | - | +7.87% |
| 05/25 | 810 | 815 | 797 | 811 | +1.25% | 276,800 | - | +6.85% |
| 05/22 | 790 | 810 | 786 | 801 | +2.43% | 226,700 | - | +6.09% |
| 05/21 | 810 | 813 | 779 | 782 | -3.46% | 264,900 | - | +4.13% |
| 05/20 | 835 | 838 | 797 | 810 | -2.06% | 215,000 | - | +8.29% |
| 05/19 | 804 | 827 | 783 | 827 | +1.97% | 345,200 | - | +11.16% |
| 05/18 | 817 | 857 | 804 | 811 | +9.15% | 1,001,800 | - | +9.59% |
| 05/15 | (IR情報)15:30 2026年12月期第1四半期決算短信〔日本基準〕(連結) |
| 05/15 | (IR情報)15:30 2026年12月期1Q決算説明資料 |
| 05/15 | 750 | 755 | 729 | 743 | +0.81% | 346,300 | - | +0.95% |
| 05/14 | 750 | 751 | 724 | 737 | -1.34% | 204,400 | - | +0.55% |
| 05/13 | 747 | 752 | 741 | 747 | 0% | 131,500 | - | +2.19% |
| 05/12 | 751 | 753 | 740 | 747 | -0.8% | 130,700 | - | +2.61% |
| 05/11 | 738 | 756 | 738 | 753 | +1.21% | 137,100 | - | +3.72% |