| 2026 |
| 03/06 | （IR情報）12:00 連結子会社の商号変更に関するお知らせ |
| 03/06 | （IR情報）12:00 2026年10月期第1四半期決算短信〔日本基準〕(連結) |
| 03/06 | （IR情報）12:00 報告セグメントの変更に関するお知らせ |
| 03/06 | （IR情報）12:00 2026年10月期第2四半期(中間期)および通期連結業績予想の修正に関するお知らせ |
| 03/06 | （IR情報）12:00 特別利益(負ののれん発生益)の計上に関するお知らせ |
| 03/06 | 3,420 | 3,425 | 3,255 | 3,345 | -3.6% | 280,200 | 1278億3505万 | -8.05% |
| 03/05 | 3,515 | 3,560 | 3,455 | 3,470 | +3.74% | 108,800 | 1326億1215万 | -4.93% |
| 03/04 | 3,450 | 3,490 | 3,190 | 3,345 | -6.56% | 196,200 | 1278億3505万 | -8.61% |
| 03/03 | 3,900 | 3,900 | 3,565 | 3,580 | -8.21% | 110,700 | 1368億1599万 | -2.59% |
| 03/02 | 3,865 | 3,915 | 3,740 | 3,900 | -2.62% | 114,100 | 1490億4536万 | +5.92% |
| 02/27 | 3,845 | 4,020 | 3,795 | 4,005 | +5.81% | 190,600 | 1530億5811万 | +8.98% |
| 02/26 | 3,785 | 3,820 | 3,735 | 3,785 | +1.2% | 45,000 | 1446億5043万 | +3.44% |
| 02/25 | 3,725 | 3,815 | 3,665 | 3,740 | +1.22% | 63,400 | 1429億3067万 | +2.41% |
| 02/24 | 3,770 | 3,770 | 3,625 | 3,695 | -1.2% | 73,100 | 1412億1092万 | +1.23% |
| 02/20 | 3,790 | 3,790 | 3,710 | 3,740 | -2.98% | 46,700 | 1429億3067万 | +2.58% |
| 02/19 | 3,735 | 3,860 | 3,705 | 3,855 | +4.47% | 86,200 | 1473億2560万 | +6.08% |
| 02/18 | 3,645 | 3,755 | 3,640 | 3,690 | +1.37% | 36,600 | 1410億1984万 | +2.1% |
| 02/17 | （IR情報）12:00 投資有価証券売却益(特別利益)の計上に関するお知らせ |
| 02/17 | 3,570 | 3,700 | 3,515 | 3,640 | +1.39% | 104,300 | 1391億900万 | +1.14% |
| 02/17 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 187,256株（0.48%）-0.11%義務消失 |
| 02/16 | 3,705 | 3,705 | 3,585 | 3,590 | -2.58% | 83,600 | 1371億9816万 | +0.2% |
| 02/13 | 3,745 | 3,745 | 3,640 | 3,685 | -1.6% | 59,700 | 1408億2875万 | +3.25% |
| 02/12 | 3,800 | 3,800 | 3,680 | 3,745 | -1.45% | 91,100 | 1431億2176万 | +5.46% |
| 02/10 | 3,745 | 3,820 | 3,665 | 3,800 | +3.12% | 99,700 | 1452億2368万 | +7.62% |
| 02/09 | 3,710 | 3,745 | 3,650 | 3,685 | +1.24% | 73,300 | 1408億2875万 | +5.08% |
| 02/06 | 3,530 | 3,640 | 3,460 | 3,640 | +3.12% | 80,900 | 1391億900万 | +4.45% |
| 02/05 | 3,600 | 3,600 | 3,505 | 3,530 | -0.98% | 65,600 | 1349億515万 | +1.88% |
| 02/05 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 226,956株（0.59%）-0.01% |
| 02/04 | 3,595 | 3,610 | 3,470 | 3,565 | +0.42% | 87,300 | 1362億4274万 | +3.3% |
| 02/03 | 3,515 | 3,575 | 3,455 | 3,550 | +4.41% | 80,900 | 1356億6949万 | +3.29% |
| 02/03 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 229,556株（0.6%）+0.03% |
| 02/02 | 3,425 | 3,495 | 3,360 | 3,400 | -1.73% | 100,000 | 1299億3698万 | -0.7% |
| 01/30 | 3,515 | 3,550 | 3,420 | 3,460 | -1.56% | 84,000 | 1322億2998万 | +1.26% |
| 01/30 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 221,356株（0.57%）再IN |
| 01/29 | 3,620 | 3,630 | 3,465 | 3,515 | -3.17% | 87,800 | 1343億3190万 | +3.05% |
| 01/28 | 3,745 | 3,785 | 3,610 | 3,630 | -2.94% | 74,400 | 1387億2683万 | +6.89% |
| 01/27 | 3,720 | 3,750 | 3,640 | 3,740 | +0.54% | 74,800 | 1429億3067万 | +11.05% |
| 01/26 | 3,770 | 3,770 | 3,665 | 3,720 | -0.67% | 99,200 | 1421億6634万 | +11.28% |
| 01/23 | 3,670 | 3,775 | 3,640 | 3,745 | +0.81% | 81,800 | 1431億2176万 | +13.04% |
| 01/22 | 3,680 | 3,730 | 3,625 | 3,715 | +2.91% | 65,700 | 1419億7525万 | +12.88% |
| 01/21 | 3,550 | 3,665 | 3,520 | 3,610 | -0.14% | 64,100 | 1379億6249万 | +10.67% |
| 01/20 | 3,665 | 3,680 | 3,540 | 3,615 | -2.17% | 113,400 | 1381億5358万 | +11.78% |
| 01/19 | 3,605 | 3,725 | 3,550 | 3,695 | +2.92% | 103,300 | 1412億1092万 | +15.25% |
| 01/16 | 3,450 | 3,610 | 3,450 | 3,590 | +4.51% | 88,500 | 1371億9816万 | +13.18% |
| 01/15 | 3,370 | 3,435 | 3,335 | 3,435 | +2.54% | 34,100 | 1312億7456万 | +9.19% |
| 01/14 | 3,315 | 3,350 | 3,235 | 3,350 | +1.06% | 97,300 | 1280億2614万 | +7.23% |
| 01/13 | 3,320 | 3,360 | 3,290 | 3,315 | +2% | 150,600 | 1266億8855万 | +6.76% |
| 01/09 | 3,245 | 3,265 | 3,195 | 3,250 | +0.46% | 50,500 | 1242億446万 | +5.21% |
| 01/08 | 3,255 | 3,295 | 3,215 | 3,235 | -0.46% | 39,600 | 1236億3121万 | +5.27% |
| 01/07 | 3,240 | 3,295 | 3,210 | 3,250 | +0.46% | 59,500 | 1242億446万 | +6.21% |
| 01/06 | 3,240 | 3,310 | 3,195 | 3,235 | +0.94% | 57,300 | 1236億3121万 | +6% |
| 01/05 | 3,200 | 3,240 | 3,175 | 3,205 | +2.4% | 44,600 | 1224億8471万 | +5.39% |
| 2025 |
| 12/30 | 3,110 | 3,180 | 3,100 | 3,130 | -0.48% | 56,800 | 1196億1845万 | +3.44% |
| 12/29 | 3,185 | 3,235 | 3,125 | 3,145 | -1.26% | 44,200 | 1201億9170万 | +4.38% |
| 12/26 | （IR情報）12:00 投資有価証券売却益(特別利益)の計上に関するお知らせ |
| 12/26 | 3,230 | 3,235 | 3,175 | 3,185 | -0.62% | 61,200 | 1217億2037万 | +6.2% |
| 12/25 | 3,230 | 3,265 | 3,205 | 3,205 | -0.77% | 22,600 | 1224億8471万 | +7.41% |
| 12/24 | 3,260 | 3,295 | 3,220 | 3,230 | +0.31% | 58,000 | 1234億4013万 | +8.9% |
| 12/23 | 3,315 | 3,340 | 3,200 | 3,220 | -3.01% | 137,500 | 1230億5796万 | +9.19% |
| 12/22 | （IR情報）15:30 2025年10月期通期決算のご説明(IR資料) |
| 12/22 | 3,105 | 3,380 | 3,105 | 3,320 | +5.9% | 219,500 | 1268億7963万 | +12.96% |
| 12/19 | 2,964 | 3,140 | 2,944 | 3,135 | +7.4% | 140,300 | 1198億953万 | +7.11% |
| 12/18 | 3,070 | 3,070 | 2,918 | 2,919 | -6.29% | 159,000 | 1115億5471万 | 0% |
| 12/17 | 3,000 | 3,175 | 2,993 | 3,115 | +4.92% | 152,200 | 1190億4520万 | +6.75% |
| 12/16 | 3,170 | 3,170 | 2,946 | 2,969 | -7.22% | 122,500 | 1134億6555万 | +2.1% |
| 12/15 | 3,025 | 3,220 | 2,989 | 3,200 | +6.81% | 186,000 | 1222億9362万 | +10.15% |
| 12/12 | （IR情報）12:00 創立80周年記念配当に関するお知らせ |
| 12/12 | （IR情報）12:00 役員の異動について |
| 12/12 | （IR情報）12:00 株主提案に対する当社取締役会の意見に関するお知らせ |
| 12/12 | （IR情報）12:00 当社株式の大規模買付等に関する対応方針(買収への対応方針)の継続について |
| 12/12 | （IR情報）12:00 個別業績と前期実績との差異に関するお知らせ |
| 12/12 | （IR情報）12:00 2025年10月期決算短信〔日本基準〕(連結) |
| 12/12 | 2,902 | 3,045 | 2,883 | 2,996 | +3.24% | 182,500 | 1144億9740万 | +3.7% |
| 12/11 | 2,929 | 2,948 | 2,892 | 2,902 | -0.48% | 74,200 | 1109億503万 | +0.66% |
| 12/10 | 2,884 | 2,934 | 2,864 | 2,916 | +2.28% | 68,100 | 1114億4006万 | +1.29% |
| 12/09 | 2,931 | 2,931 | 2,823 | 2,851 | -2.93% | 77,500 | 1089億5597万 | -0.83% |
| 12/08 | 2,918 | 2,957 | 2,887 | 2,937 | +2.19% | 76,200 | 1122億4262万 | +2.12% |
| 12/05 | （IR情報）15:30 特別損失(減損損失)及び繰延税金資産の計上に関するお知らせ |
| 12/05 | （IR情報）15:30 2025年10月期通期連結業績予想の修正に関するお知らせ |
| 12/05 | 2,897 | 2,922 | 2,846 | 2,874 | -0.45% | 54,400 | 1098億3496万 | -0.07% |
| 12/04 | 2,717 | 2,931 | 2,700 | 2,887 | -1.03% | 93,700 | 1103億3178万 | +0.31% |
| 12/03 | 2,894 | 2,928 | 2,859 | 2,917 | +2.17% | 47,200 | 1114億7828万 | +1.28% |
| 12/02 | 2,871 | 2,917 | 2,838 | 2,855 | -1.69% | 62,600 | 1091億884万 | -0.94% |
| 12/01 | 3,050 | 3,050 | 2,904 | 2,904 | -4.79% | 43,500 | 1109億8146万 | +0.62% |
| 11/28 | 2,962 | 3,075 | 2,962 | 3,050 | +3.28% | 94,200 | 1165億6111万 | +5.68% |
| 11/27 | 2,898 | 2,993 | 2,839 | 2,953 | +4.24% | 82,900 | 1128億5408万 | +2.5% |
| 11/26 | 2,820 | 2,833 | 2,772 | 2,833 | +0.5% | 120,500 | 1082億6807万 | -1.6% |
| 11/25 | 2,827 | 2,870 | 2,786 | 2,819 | +1.48% | 88,100 | 1077億3304万 | -2.22% |
| 11/21 | 2,720 | 2,803 | 2,713 | 2,778 | -1.14% | 63,500 | 1061億6615万 | -3.64% |
| 11/20 | 2,816 | 2,860 | 2,784 | 2,810 | +1.55% | 31,100 | 1073億8909万 | -2.57% |
| 11/19 | 2,790 | 2,802 | 2,739 | 2,767 | -0.82% | 39,700 | 1057億4577万 | -3.99% |
| 11/18 | 2,939 | 2,939 | 2,755 | 2,790 | -6.63% | 87,400 | 1066億2475万 | -3.19% |
| 11/17 | 3,010 | 3,040 | 2,968 | 2,988 | -0.4% | 30,900 | 1141億9167万 | +3.46% |
| 11/14 | 2,930 | 3,055 | 2,923 | 3,000 | +1.59% | 75,900 | 1146億5027万 | +4.09% |
| 11/13 | 2,878 | 2,972 | 2,869 | 2,953 | +1.9% | 25,900 | 1128億5408万 | +2.89% |
| 11/12 | 2,806 | 2,898 | 2,789 | 2,898 | +1.47% | 34,000 | 1107億5216万 | +1.4% |
| 11/11 | 2,921 | 2,949 | 2,855 | 2,856 | -1.01% | 32,500 | 1091億4706万 | +0.28% |
| 11/10 | （自社株買い）取締役会(2025年7月4日)での決議状況(取得期間2025年7月7日～2026年3月31日) |
| 11/10 | 2,833 | 2,886 | 2,823 | 2,885 | +2.6% | 58,900 | 1102億5534万 | +1.69% |
| 11/07 | 2,802 | 2,833 | 2,767 | 2,812 | -1.02% | 32,100 | 1074億6552万 | -0.53% |
| 11/06 | 2,839 | 2,897 | 2,792 | 2,841 | +1.86% | 33,900 | 1085億7381万 | +0.74% |
| 11/05 | 2,829 | 2,848 | 2,699 | 2,789 | -1.45% | 48,200 | 1065億8654万 | -0.92% |
| 11/04 | （IR情報）15:30 (開示事項の経過)三井金属アクト株式会社の株式取得(子会社化)完了のお知らせ |
| 11/04 | 2,850 | 2,876 | 2,821 | 2,830 | -1.36% | 41,100 | 1081億5342万 | +0.64% |
| 10/31 | 2,887 | 2,919 | 2,844 | 2,869 | -2.32% | 45,000 | 1096億4388万 | +2.17% |
| 10/30 | 2,902 | 2,967 | 2,902 | 2,937 | +0.58% | 48,200 | 1122億4262万 | +4.82% |
| 10/29 | 2,960 | 2,975 | 2,920 | 2,920 | -0.61% | 71,300 | 1115億9293万 | +4.43% |
| 10/28 | 2,971 | 2,983 | 2,902 | 2,938 | -1.08% | 45,600 | 1122億8083万 | +5.38% |
| 10/27 | 2,994 | 3,030 | 2,955 | 2,970 | +0.24% | 49,100 | 1135億377万 | +6.8% |
| 10/24 | 2,903 | 2,990 | 2,903 | 2,963 | +2% | 39,500 | 1132億3625万 | +7.04% |
| 10/23 | 2,925 | 2,950 | 2,862 | 2,905 | -0.41% | 63,200 | 1110億1968万 | +5.41% |
| 10/22 | 2,898 | 2,924 | 2,884 | 2,917 | +0.31% | 31,000 | 1114億7828万 | +6.07% |
| 10/21 | 2,931 | 2,964 | 2,892 | 2,908 | -1.09% | 60,500 | 1111億3433万 | +5.98% |
| 10/20 | 2,850 | 2,950 | 2,847 | 2,940 | +4.55% | 98,900 | 1123億5727万 | +7.42% |
| 10/17 | 2,788 | 2,860 | 2,740 | 2,812 | +0.72% | 43,700 | 1074億6552万 | +2.89% |
| 10/16 | 2,820 | 2,850 | 2,761 | 2,792 | +0.36% | 61,700 | 1067億119万 | +2.27% |
| 10/15 | 2,759 | 2,807 | 2,750 | 2,782 | +0.76% | 57,900 | 1063億1902万 | +1.9% |
| 10/14 | （IR情報）12:00 自己株式の取得状況及び取得終了に関するお知らせ |
| 10/14 | 2,869 | 2,895 | 2,704 | 2,761 | -6.12% | 152,200 | 1055億1647万 | +1.06% |
| 10/10 | （IR情報）12:00 特別利益の計上および2025年10月期通期連結業績予想の修正に関するお知らせ |
| 10/10 | 2,809 | 2,968 | 2,790 | 2,941 | +4.11% | 162,700 | 1123億9548万 | +7.49% |
| 10/09 | 2,718 | 2,850 | 2,718 | 2,825 | +4.05% | 72,500 | 1079億6234万 | +3.48% |
| 10/08 | 2,650 | 2,733 | 2,639 | 2,715 | +2.22% | 50,600 | 1037億5850万 | -0.55% |
| 10/07 | （自社株買い）取締役会(2025年7月4日)での決議状況(取得期間2025年7月7日～2026年3月31日) |
| 10/07 | 2,687 | 2,687 | 2,639 | 2,656 | +0.72% | 24,500 | 1015億371万 | -2.92% |
| 10/06 | （IR情報）15:30 (開示事項の経過)三井金属アクト株式会社の株式譲渡実行日の決定に関するお知らせ |
| 10/01 | （IR情報）15:30 自己株式の取得状況に関するお知らせ |
10年以上蓄積したファイナンスデータとAIを掛け合わせて、投資の意思決定を加速させるポジションです。
