| 2026 |
| 06/25 | 1,826 | 1,826 | 1,789 | 1,794 | -0.11% | 4,540,400 | 2兆4501億 | +1.36% |
| 06/24 | 1,768 | 1,807 | 1,751 | 1,796 | +0.17% | 4,680,500 | 2兆4528億 | +1.64% |
| 06/23 | 1,821 | 1,823 | 1,779 | 1,793 | -1.7% | 5,350,300 | 2兆4487億 | +1.76% |
| 06/22 | 1,835 | 1,837 | 1,796 | 1,824 | +1.73% | 5,950,700 | 2兆4911億 | +3.75% |
| 06/19 | 1,794 | 1,813 | 1,785 | 1,793 | +0.5% | 7,466,200 | 2兆4487億 | +2.28% |
| 06/18 | 1,800 | 1,812 | 1,774 | 1,784 | -0.34% | 3,926,500 | 2兆4365億 | +1.94% |
| 06/17 | 1,765 | 1,790 | 1,750 | 1,790 | +1.59% | 3,657,500 | 2兆4446億 | +2.4% |
| 06/16 | 1,744 | 1,768 | 1,730 | 1,762 | -0.17% | 4,547,400 | 2兆4064億 | +0.92% |
| 06/15 | (自社株買い)取締役会(2025年11月5日)での決議状況(取得期間2025年11月6日~2026年10月31日) |
| 06/15 | 1,818 | 1,835 | 1,756 | 1,765 | -1.34% | 7,362,800 | 2兆4105億 | +1.32% |
| 06/12 | 1,800 | 1,812 | 1,770 | 1,789 | +1.65% | 6,489,400 | 2兆4433億 | +3.23% |
| 06/11 | 1,721 | 1,770 | 1,708 | 1,760 | +0.23% | 4,133,600 | 2兆4037億 | +2.15% |
| 06/10 | 1,735 | 1,770 | 1,732 | 1,756 | +2.33% | 5,735,300 | 2兆3982億 | +2.45% |
| 06/09 | 1,786 | 1,786 | 1,710 | 1,716 | -1.72% | 5,193,600 | 2兆3436億 | +0.65% |
| 06/08 | 1,781 | 1,785 | 1,727 | 1,746 | -2.29% | 6,015,600 | 2兆3846億 | +2.83% |
| 06/05 | 1,777 | 1,804 | 1,763 | 1,787 | +0.06% | 3,738,100 | 2兆4405億 | +5.8% |
| 06/04 | 1,750 | 1,788 | 1,745 | 1,786 | +1.59% | 4,546,500 | 2兆4392億 | +6.37% |
| 06/03 | 1,758 | 1,784 | 1,743 | 1,758 | +0.86% | 5,186,800 | 2兆4009億 | +5.4% |
| 06/02 | 1,771 | 1,774 | 1,701 | 1,743 | -1.41% | 4,955,100 | 2兆3805億 | +5.06% |
| 06/01 | (IR情報)11:00 自己株式の取得状況に関するお知らせ |
| 06/01 | 1,778 | 1,785 | 1,741 | 1,768 | -1.06% | 4,386,200 | 2兆4146億 | +7.09% |
| 05/29 | 1,768 | 1,803 | 1,765 | 1,787 | +1.77% | 10,221,700 | 2兆4405億 | +8.83% |
| 05/28 | 1,718 | 1,760 | 1,707 | 1,756 | +0.34% | 5,566,900 | 2兆3982億 | +7.53% |
| 05/27 | 1,750 | 1,778 | 1,743 | 1,750 | -0.06% | 4,877,600 | 2兆3900億 | +7.56% |
| 05/26 | 1,763 | 1,793 | 1,750 | 1,751 | -1.07% | 4,139,600 | 2兆3914億 | +7.95% |
| 05/25 | 1,766 | 1,792 | 1,741 | 1,770 | +2.55% | 4,317,300 | 2兆4173億 | +9.73% |
| 05/22 | 1,710 | 1,727 | 1,696 | 1,726 | +0.99% | 3,770,800 | 2兆3572億 | +7.54% |
| 05/21 | 1,695 | 1,740 | 1,681 | 1,709 | +2.09% | 4,570,700 | 2兆3340億 | +6.75% |
| 05/20 | 1,696 | 1,699 | 1,672 | 1,674 | -1.53% | 5,936,600 | 2兆2862億 | +4.76% |
| 05/19 | 1,700 | 1,704 | 1,679 | 1,700 | +0.59% | 5,626,100 | 2兆3217億 | +6.52% |
| 05/18 | 1,706 | 1,714 | 1,667 | 1,690 | -2.2% | 4,533,300 | 2兆3081億 | +6.02% |
| 05/15 | (自社株買い)取締役会(2025年11月5日)での決議状況(取得期間2025年11月6日~2026年10月31日) |
| 05/15 | 1,732 | 1,742 | 1,706 | 1,728 | -0.06% | 6,129,300 | 2兆3600億 | +8.75% |
| 05/14 | 1,750 | 1,759 | 1,708 | 1,729 | -1.2% | 6,255,300 | 2兆3613億 | +9.36% |
| 05/13 | 1,655 | 1,760 | 1,646 | 1,750 | +5.74% | 10,306,000 | 2兆3900億 | +11.18% |
| 05/12 | (IR情報)12:30 2025年度決算説明資料 |
| 05/12 | (IR情報)12:30 2026年3月期決算短信〔日本基準〕(連結) |
| 05/12 | (IR情報)12:30 2026年3月期剰余金の配当(増配)および2027年3月期配当予想に関するお知らせ |
| 05/12 | (IR情報)12:30 (参考資料)2030年度を目途とする水島製造所の一部誘導品事業の再構築について |
| 05/12 | (IR情報)12:30 2030年度を目途とする水島製造所の一部誘導品事業の再構築に関するお知らせ |
| 05/12 | 1,548 | 1,664 | 1,541 | 1,655 | +7.96% | 13,151,800 | 2兆2603億 | +5.68% |
| 05/11 | 1,522 | 1,547 | 1,517 | 1,533 | -0.26% | 4,652,500 | 2兆936億 | -1.98% |
| 05/08 | 1,539 | 1,543 | 1,507 | 1,537 | -0.58% | 5,504,700 | 2兆991億 | -1.66% |
| 05/07 | 1,565 | 1,581 | 1,537 | 1,546 | +1.38% | 6,643,100 | 2兆1114億 | -0.96% |
| 05/01 | (IR情報)11:00 自己株式の取得状況に関するお知らせ |
| 05/01 | 1,516 | 1,528 | 1,504 | 1,525 | -0.65% | 3,442,200 | 2兆827億 | -2.37% |
| 04/30 | 1,534 | 1,538 | 1,509 | 1,535 | -0.45% | 5,477,800 | 2兆964億 | -1.85% |
| 04/28 | 1,535 | 1,549 | 1,527 | 1,542 | +1.45% | 3,348,100 | 2兆1059億 | -1.47% |
| 04/27 | 1,520 | 1,536 | 1,505 | 1,520 | -0.46% | 2,929,300 | 2兆759億 | -2.81% |
| 04/24 | 1,535 | 1,545 | 1,508 | 1,527 | 0% | 3,198,300 | 2兆855億 | -2.24% |
| 04/23 | 1,514 | 1,533 | 1,488 | 1,527 | -0.46% | 4,912,400 | 2兆855億 | -2.3% |
| 04/22 | 1,551 | 1,552 | 1,528 | 1,534 | -1.6% | 4,113,900 | 2兆950億 | -2.17% |
| 04/21 | 1,564 | 1,578 | 1,559 | 1,559 | 0% | 2,982,900 | 2兆1292億 | -0.7% |
| 04/20 | 1,598 | 1,606 | 1,557 | 1,559 | -2.68% | 3,815,900 | 2兆1292億 | -0.83% |
| 04/17 | 1,612 | 1,618 | 1,591 | 1,602 | -0.62% | 4,380,700 | 2兆1879億 | +1.78% |
| 04/16 | 1,561 | 1,620 | 1,560 | 1,612 | +4.61% | 5,905,000 | 2兆2015億 | +2.28% |
| 04/15 | (自社株買い)取締役会(2025年11月5日)での決議状況(取得期間2025年11月6日~2026年10月31日) |
| 04/15 | 1,608 | 1,631 | 1,541 | 1,541 | -2.1% | 10,197,600 | 2兆1046億 | -2.47% |
| 04/14 | 1,629 | 1,635 | 1,564 | 1,574 | -2.3% | 6,362,200 | 2兆1496億 | -0.69% |
| 04/13 | 1,630 | 1,635 | 1,601 | 1,611 | -1.53% | 5,012,700 | 2兆2002億 | +1.51% |
| 04/10 | 1,652 | 1,659 | 1,634 | 1,636 | -0.12% | 5,080,600 | 2兆2343億 | +2.83% |
| 04/09 | 1,664 | 1,668 | 1,633 | 1,638 | -0.73% | 5,463,400 | 2兆2371億 | +2.7% |
| 04/08 | 1,653 | 1,658 | 1,622 | 1,650 | +6.8% | 9,006,800 | 2兆2534億 | +3.32% |
| 04/07 | 1,555 | 1,557 | 1,529 | 1,545 | +0.39% | 4,369,300 | 2兆1100億 | -3.68% |
| 04/06 | 1,551 | 1,566 | 1,538 | 1,539 | -1.35% | 3,413,100 | 2兆1018億 | -4.88% |
| 04/03 | 1,560 | 1,573 | 1,551 | 1,560 | +0.97% | 2,305,800 | 2兆1305億 | -4.29% |
| 04/02 | 1,603 | 1,603 | 1,545 | 1,545 | -2.89% | 5,118,700 | 2兆1100億 | -5.79% |
| 04/01 | (IR情報)11:00 自己株式の取得状況に関するお知らせ |
| 04/01 | 1,570 | 1,597 | 1,543 | 1,591 | +5.43% | 6,510,600 | 2兆1729億 | -3.63% |
| 03/31 | 1,495 | 1,541 | 1,488 | 1,509 | +0.13% | 5,126,900 | 2兆609億 | -9.15% |
| 03/30 | 1,450 | 1,509 | 1,450 | 1,507 | -4.01% | 7,302,800 | 2兆581億 | -9.76% |
| 03/27 | 1,552 | 1,570 | 1,544 | 1,570 | +0.64% | 5,584,900 | 2兆1442億 | -6.66% |
| 03/26 | 1,582 | 1,582 | 1,545 | 1,560 | +0.13% | 3,495,300 | 2兆1305億 | -7.69% |
| 03/25 | 1,582 | 1,583 | 1,555 | 1,558 | +1.83% | 3,888,900 | 2兆1278億 | -8.19% |
| 03/25 | (空売り報告)BNP Paribas Financial Markets SNC 6,425,243株(0.47%)-0.04%義務消失 |
| 03/24 | 1,519 | 1,535 | 1,505 | 1,530 | +3.73% | 5,010,900 | 2兆896億 | -10.16% |
| 03/24 | (空売り報告)BNP Paribas Financial Markets SNC 7,021,843株(0.51%)-0.09% |
| 03/23 | 1,514 | 1,517 | 1,459 | 1,475 | -5.08% | 7,747,400 | 2兆144億 | -13.84% |
| 03/19 | (5%ルール)ノムラインターナショナルピーエルシー(NOMURA IN…(0.12%)野村アセットマネジメント(4.89%) |
| 03/19 | 1,567 | 1,582 | 1,545 | 1,554 | -5.01% | 10,100,300 | 2兆1223億 | -9.81% |
| 03/18 | 1,612 | 1,638 | 1,610 | 1,636 | +2.44% | 4,439,900 | 2兆2343億 | -5.49% |
| 03/18 | (空売り報告)BNP Paribas Financial Markets SNC 8,320,543株(0.6%)+0.03% |
| 03/17 | 1,620 | 1,637 | 1,594 | 1,597 | +0.13% | 4,006,900 | 2兆1811億 | -7.95% |
| 03/16 | 1,588 | 1,605 | 1,572 | 1,595 | -1.36% | 5,769,700 | 2兆1783億 | -8.28% |
| 03/13 | (自社株買い)取締役会(2025年11月5日)での決議状況(取得期間2025年11月6日~2026年10月31日) |
| 03/13 | 1,594 | 1,645 | 1,594 | 1,617 | -2% | 8,123,200 | 2兆2084億 | -7.12% |
| 03/13 | (空売り報告)BNP Paribas Financial Markets SNC 7,877,343株(0.57%)再IN |
| 03/12 | 1,641 | 1,669 | 1,626 | 1,650 | -3.51% | 7,716,600 | 2兆2534億 | -5.17% |
| 03/11 | 1,726 | 1,732 | 1,700 | 1,710 | +2.46% | 4,046,400 | 2兆3354億 | -1.44% |
| 03/10 | 1,671 | 1,690 | 1,655 | 1,669 | +2.33% | 6,265,800 | 2兆2794億 | -3.25% |
| 03/09 | 1,592 | 1,631 | 1,573 | 1,631 | -4.73% | 6,707,200 | 2兆2275億 | -5.06% |
| 03/06 | 1,700 | 1,718 | 1,689 | 1,712 | -0.7% | 4,953,300 | 2兆3381億 | 0% |
| 03/05 | 1,771 | 1,780 | 1,712 | 1,724 | +1.47% | 7,272,600 | 2兆3545億 | +1.23% |
| 03/04 | 1,750 | 1,771 | 1,668 | 1,699 | -6.96% | 7,773,300 | 2兆3204億 | +0.35% |
| 03/03 | 1,850 | 1,874 | 1,823 | 1,826 | -3.13% | 5,940,200 | 2兆4938億 | +8.37% |
| 03/02 | (IR情報)11:00 自己株式の取得状況に関するお知らせ |
| 03/02 | 1,829 | 1,889 | 1,816 | 1,885 | +2.17% | 5,966,100 | 2兆5744億 | +12.67% |
| 02/27 | 1,799 | 1,845 | 1,781 | 1,845 | +1.88% | 9,724,100 | 2兆5198億 | +11.28% |
| 02/26 | 1,835 | 1,842 | 1,800 | 1,811 | -0.49% | 4,856,900 | 2兆4733億 | +10.16% |
| 02/25 | 1,816 | 1,839 | 1,799 | 1,820 | -0.71% | 6,236,700 | 2兆4856億 | +11.59% |
| 02/24 | 1,756 | 1,833 | 1,750 | 1,833 | +5.34% | 6,065,800 | 2兆5034億 | +13.22% |
| 02/20 | 1,772 | 1,779 | 1,740 | 1,740 | -3.17% | 4,501,100 | 2兆3764億 | +8.34% |
| 02/19 | 1,779 | 1,801 | 1,763 | 1,797 | +1.01% | 5,445,100 | 2兆4542億 | +12.52% |
| 02/18 | 1,744 | 1,783 | 1,729 | 1,779 | +2.77% | 5,831,800 | 2兆4296億 | +12.31% |
| 02/17 | 1,724 | 1,741 | 1,712 | 1,731 | +0.58% | 3,598,400 | 2兆3641億 | +10.11% |
| 02/16 | 1,733 | 1,743 | 1,716 | 1,721 | -0.92% | 2,286,200 | 2兆3504億 | +10.32% |
| 02/13 | (自社株買い)取締役会(2025年11月5日)での決議状況(取得期間2025年11月6日~2026年10月31日) |
| 02/13 | 1,739 | 1,755 | 1,728 | 1,737 | -1.47% | 5,347,300 | 2兆3723億 | +12.06% |
| 02/12 | 1,755 | 1,775 | 1,739 | 1,763 | +1.56% | 6,468,000 | 2兆4078億 | +14.63% |
| 02/10 | 1,751 | 1,754 | 1,727 | 1,736 | -0.8% | 5,789,100 | 2兆3709億 | +13.69% |
| 02/09 | 1,750 | 1,755 | 1,721 | 1,750 | +3.18% | 6,415,900 | 2兆3900億 | +15.59% |
| 02/06 | 1,640 | 1,704 | 1,638 | 1,696 | +3.41% | 6,804,200 | 2兆3163億 | +13.07% |
| 02/05 | 1,706 | 1,746 | 1,640 | 1,640 | +2.89% | 11,518,900 | 2兆2398億 | +10.29% |
| 02/04 | (IR情報)12:30 2025年度第3半期決算説明会資料 |
| 02/04 | (IR情報)12:30 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/04 | 1,515 | 1,648 | 1,502 | 1,594 | +4.8% | 14,126,500 | 2兆1770億 | +7.92% |
| 02/03 | 1,498 | 1,521 | 1,491 | 1,521 | +3.96% | 5,959,500 | 2兆773億 | +3.61% |
| 02/02 | (IR情報)11:00 自己株式の取得状況に関するお知らせ |
| 02/02 | 1,521 | 1,521 | 1,463 | 1,463 | -2.47% | 4,335,900 | 1兆9980億 | +0.07% |
| 01/30 | 1,479 | 1,500 | 1,472 | 1,500 | +0.87% | 4,060,400 | 2兆486億 | +2.81% |
| 01/29 | 1,462 | 1,490 | 1,452 | 1,487 | +1.5% | 3,651,900 | 2兆308億 | +2.27% |
| 01/28 | 1,475 | 1,479 | 1,458 | 1,465 | -2.07% | 4,500,800 | 2兆8億 | +1.03% |