| 2026 |
| 06/03 | 1,726 | 1,752 | 1,702 | 1,738 | +1.11% | 52,500 | 677億8200万 | +3.51% |
| 06/02 | 1,720 | 1,728 | 1,694 | 1,719 | -1.38% | 76,900 | 670億4100万 | +2.81% |
| 06/01 | 1,794 | 1,800 | 1,743 | 1,743 | -2.84% | 89,100 | 679億7700万 | +4.62% |
| 05/29 | 1,788 | 1,815 | 1,777 | 1,794 | +1.24% | 65,300 | 699億6600万 | +8.01% |
| 05/28 | 1,774 | 1,799 | 1,758 | 1,772 | +0.74% | 61,000 | 691億800万 | +7.13% |
| 05/28 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 245,986株(0.63%)+0.13% |
| 05/27 | 1,747 | 1,772 | 1,741 | 1,759 | +0.06% | 51,100 | 686億100万 | +6.8% |
| 05/26 | 1,740 | 1,769 | 1,729 | 1,758 | +0.23% | 47,700 | 685億6200万 | +7.13% |
| 05/25 | 1,730 | 1,762 | 1,712 | 1,754 | +1.68% | 84,100 | 684億600万 | +7.28% |
| 05/22 | 1,671 | 1,736 | 1,667 | 1,725 | +3.23% | 110,100 | 672億7500万 | +5.89% |
| 05/21 | (IR情報)16:40 (訂正)「剰余金の配当及び配当方針の変更に関するお知らせ」の一部訂正のお知らせ |
| 05/21 | 1,667 | 1,690 | 1,657 | 1,671 | +0.97% | 67,400 | 651億6900万 | +2.89% |
| 05/20 | (IR情報)15:00 2026年3月期決算及び第7次中期経営計画説明会資料 |
| 05/20 | 1,658 | 1,666 | 1,639 | 1,655 | -0.36% | 85,100 | 645億4500万 | +2.03% |
| 05/19 | 1,679 | 1,687 | 1,659 | 1,661 | +0.06% | 102,900 | 647億7900万 | +2.53% |
| 05/18 | 1,710 | 1,710 | 1,645 | 1,660 | -3.15% | 139,500 | 647億4000万 | +2.53% |
| 05/15 | 1,750 | 1,750 | 1,702 | 1,714 | -2.22% | 116,200 | 668億4600万 | +5.93% |
| 05/14 | (IR情報)16:40 (訂正)組織変更および役員等の異動に関するお知らせ |
| 05/14 | (IR情報)14:00 第7次中期経営計画の策定に関するお知らせ |
| 05/14 | (IR情報)14:00 譲渡制限付株式報酬制度の導入に関するお知らせ |
| 05/14 | (IR情報)14:00 組織変更および役員等の異動に関するお知らせ |
| 05/14 | (IR情報)14:00 剰余金の配当及び配当方針の変更に関するお知らせ |
| 05/14 | (IR情報)14:00 2026年3月期決算短信〔日本基準〕(連結) |
| 05/14 | 1,644 | 1,797 | 1,615 | 1,753 | +8.81% | 144,700 | 683億6700万 | +8.54% |
| 05/14 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 196,586株(0.5%)再IN |
| 05/13 | 1,632 | 1,647 | 1,611 | 1,611 | -2.3% | 39,000 | 628億2900万 | +0.06% |
| 05/12 | 1,626 | 1,655 | 1,626 | 1,649 | +1.35% | 60,500 | 643億1100万 | +2.42% |
| 05/11 | 1,640 | 1,647 | 1,622 | 1,627 | -0.55% | 59,500 | 634億5300万 | +1.06% |
| 05/08 | 1,637 | 1,640 | 1,610 | 1,636 | +0.43% | 70,500 | 638億400万 | +1.68% |
| 05/07 | 1,618 | 1,640 | 1,608 | 1,629 | +1.75% | 40,100 | 635億3100万 | +1.37% |
| 05/01 | 1,583 | 1,607 | 1,577 | 1,601 | +0.76% | 40,600 | 624億3900万 | -0.44% |
| 04/30 | 1,607 | 1,609 | 1,581 | 1,589 | -1.3% | 49,900 | 619億7100万 | -1.3% |
| 04/28 | 1,583 | 1,610 | 1,579 | 1,610 | +2.03% | 88,900 | 627億9000万 | -0.06% |
| 04/27 | 1,566 | 1,589 | 1,566 | 1,578 | +0.83% | 40,900 | 615億4200万 | -2.05% |
| 04/24 | 1,563 | 1,570 | 1,561 | 1,565 | +0.19% | 22,600 | 610億3500万 | -2.86% |
| 04/23 | 1,580 | 1,580 | 1,558 | 1,562 | -1.45% | 49,900 | 609億1800万 | -3.16% |
| 04/22 | 1,604 | 1,604 | 1,585 | 1,585 | -1.18% | 56,900 | 618億1500万 | -1.92% |
| 04/21 | 1,624 | 1,628 | 1,604 | 1,604 | -0.99% | 33,100 | 625億5600万 | -0.87% |
| 04/20 | 1,622 | 1,622 | 1,605 | 1,620 | +0.62% | 48,600 | 631億8000万 | +0.06% |
| 04/17 | 1,608 | 1,617 | 1,602 | 1,610 | +0.19% | 37,700 | 627億9000万 | -0.49% |
| 04/16 | 1,599 | 1,616 | 1,599 | 1,607 | +0.56% | 29,100 | 626億7300万 | -0.68% |
| 04/15 | 1,613 | 1,633 | 1,598 | 1,598 | -0.25% | 40,800 | 623億2200万 | -1.3% |
| 04/14 | 1,602 | 1,615 | 1,595 | 1,602 | 0% | 45,300 | 624億7800万 | -1.11% |
| 04/13 | 1,612 | 1,623 | 1,602 | 1,602 | -0.62% | 25,000 | 624億7800万 | -1.17% |
| 04/10 | 1,623 | 1,633 | 1,607 | 1,612 | +0.12% | 47,000 | 628億6800万 | -0.56% |
| 04/09 | 1,646 | 1,656 | 1,610 | 1,610 | -2.01% | 35,800 | 627億9000万 | -0.74% |
| 04/08 | 1,665 | 1,669 | 1,636 | 1,643 | +0.06% | 54,100 | 640億7700万 | +1.29% |
| 04/07 | 1,641 | 1,652 | 1,636 | 1,642 | +0.37% | 34,700 | 640億3800万 | +1.23% |
| 04/06 | 1,640 | 1,649 | 1,607 | 1,636 | +1.24% | 45,500 | 638億400万 | +0.74% |
| 04/03 | 1,633 | 1,638 | 1,612 | 1,616 | -0.37% | 29,600 | 630億2400万 | -0.62% |
| 04/02 | (IR情報)11:30 2026年3月期(2025年4月~2026年3月)決算及び第7次中期経営計画説明会のご案内 |
| 04/02 | 1,642 | 1,664 | 1,615 | 1,622 | -0.86% | 49,200 | 632億5800万 | -0.37% |
| 04/01 | 1,617 | 1,639 | 1,617 | 1,636 | +2.12% | 54,400 | 638億400万 | +0.37% |
| 03/31 | 1,600 | 1,625 | 1,595 | 1,602 | -0.19% | 44,200 | 624億7800万 | -1.78% |
| 03/30 | 1,593 | 1,613 | 1,585 | 1,605 | -3.02% | 140,400 | 625億9500万 | -1.77% |
| 03/27 | 1,643 | 1,668 | 1,642 | 1,655 | +0.98% | 265,200 | 645億4500万 | +1.04% |
| 03/27 | (空売り報告)モルガン・スタンレーMUFG証券 191,035株(0.48%)-0.03%義務消失 |
| 03/26 | 1,640 | 1,648 | 1,624 | 1,639 | +0.86% | 121,600 | 639億2100万 | -0.06% |
| 03/25 | 1,623 | 1,634 | 1,616 | 1,625 | +1.69% | 97,300 | 633億7500万 | -0.98% |
| 03/24 | 1,604 | 1,610 | 1,591 | 1,598 | +0.95% | 72,500 | 623億2200万 | -2.74% |
| 03/24 | (空売り報告)モルガン・スタンレーMUFG証券 199,935株(0.51%)再IN |
| 03/23 | 1,600 | 1,600 | 1,568 | 1,583 | -1.55% | 134,100 | 617億3700万 | -3.83% |
| 03/19 | 1,633 | 1,633 | 1,603 | 1,608 | -2.55% | 86,400 | 627億1200万 | -2.49% |
| 03/18 | 1,631 | 1,650 | 1,627 | 1,650 | +1.91% | 49,000 | 643億5000万 | -0.06% |
| 03/17 | 1,630 | 1,645 | 1,619 | 1,619 | -0.43% | 47,000 | 631億4100万 | -1.94% |
| 03/16 | 1,601 | 1,634 | 1,601 | 1,626 | +1.12% | 55,800 | 634億1400万 | -1.57% |
| 03/13 | 1,597 | 1,619 | 1,596 | 1,608 | -0.06% | 51,900 | 627億1200万 | -2.78% |
| 03/12 | 1,619 | 1,626 | 1,606 | 1,609 | -1.59% | 51,400 | 627億5100万 | -2.84% |
| 03/11 | 1,635 | 1,653 | 1,634 | 1,635 | +0.43% | 35,900 | 637億6500万 | -1.39% |
| 03/10 | 1,635 | 1,635 | 1,612 | 1,628 | +1.31% | 44,900 | 634億9200万 | -1.87% |
| 03/09 | 1,572 | 1,608 | 1,569 | 1,607 | -0.74% | 97,300 | 626億7300万 | -3.19% |
| 03/06 | 1,618 | 1,622 | 1,600 | 1,619 | -0.74% | 51,900 | 631億4100万 | -2.53% |
| 03/05 | 1,635 | 1,658 | 1,623 | 1,631 | +1.43% | 50,900 | 636億900万 | -1.87% |
| 03/04 | 1,613 | 1,617 | 1,590 | 1,608 | -2.01% | 114,500 | 627億1200万 | -3.42% |
| 03/03 | 1,675 | 1,677 | 1,641 | 1,641 | -2.55% | 87,000 | 639億9900万 | -1.62% |
| 03/02 | 1,692 | 1,698 | 1,670 | 1,684 | -0.47% | 66,400 | 656億7600万 | +0.78% |
| 02/27 | 1,682 | 1,699 | 1,670 | 1,692 | +1.2% | 54,100 | 659億8800万 | +1.26% |
| 02/26 | 1,659 | 1,682 | 1,658 | 1,672 | +0.78% | 53,200 | 652億800万 | +0.12% |
| 02/26 | (空売り報告)モルガン・スタンレーMUFG証券 144,735株(0.37%)-0.13%義務消失 |
| 02/25 | 1,688 | 1,693 | 1,651 | 1,659 | -1.48% | 87,700 | 647億100万 | -0.72% |
| 02/24 | 1,679 | 1,702 | 1,670 | 1,684 | +0.96% | 44,900 | 656億7600万 | +0.66% |
| 02/20 | 1,686 | 1,686 | 1,655 | 1,668 | -1.82% | 49,000 | 650億5200万 | -0.3% |
| 02/19 | 1,696 | 1,703 | 1,673 | 1,699 | -0.35% | 53,900 | 662億6100万 | +1.49% |
| 02/18 | 1,672 | 1,712 | 1,672 | 1,705 | +1.97% | 68,400 | 664億9500万 | +1.91% |
| 02/17 | 1,680 | 1,682 | 1,658 | 1,672 | +0.18% | 45,900 | 652億800万 | 0% |
| 02/16 | 1,680 | 1,680 | 1,645 | 1,669 | -0.54% | 79,800 | 650億9100万 | -0.18% |
| 02/13 | 1,678 | 1,685 | 1,650 | 1,678 | +0.78% | 70,200 | 654億4200万 | +0.36% |
| 02/12 | 1,634 | 1,674 | 1,627 | 1,665 | +1.46% | 112,500 | 649億3500万 | -0.3% |
| 02/10 | (IR情報)17:00 (訂正)組織変更および役員等の異動に関するお知らせ |
| 02/10 | (IR情報)14:00 2026年3月期第3四半期決算説明資料 |
| 02/10 | (IR情報)14:00 組織変更および役員等の異動に関するお知らせ |
| 02/10 | (IR情報)14:00 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/10 | 1,676 | 1,681 | 1,641 | 1,641 | -1.14% | 66,200 | 639億9900万 | -1.62% |
| 02/09 | 1,661 | 1,669 | 1,649 | 1,660 | +1.16% | 61,400 | 647億4000万 | -0.36% |
| 02/06 | 1,666 | 1,666 | 1,640 | 1,641 | -1.38% | 45,300 | 639億9900万 | -1.32% |
| 02/05 | 1,684 | 1,684 | 1,661 | 1,664 | 0% | 59,100 | 648億9600万 | +0.18% |
| 02/04 | 1,685 | 1,690 | 1,664 | 1,664 | -0.54% | 35,400 | 648億9600万 | +0.36% |
| 02/03 | 1,656 | 1,683 | 1,655 | 1,673 | +1.21% | 34,700 | 652億4700万 | +1.15% |
| 02/02 | 1,653 | 1,680 | 1,653 | 1,653 | 0% | 40,400 | 644億6700万 | +0.18% |
| 01/30 | 1,649 | 1,658 | 1,635 | 1,653 | +0.85% | 29,100 | 644億6700万 | +0.43% |
| 01/29 | 1,631 | 1,646 | 1,609 | 1,639 | -0.12% | 50,000 | 639億2100万 | -0.18% |
| 01/28 | 1,682 | 1,682 | 1,641 | 1,641 | -3.01% | 57,700 | 639億9900万 | +0.12% |
| 01/27 | 1,675 | 1,692 | 1,669 | 1,692 | 0% | 40,900 | 659億8800万 | +3.49% |
| 01/26 | 1,703 | 1,712 | 1,681 | 1,692 | -1.05% | 48,400 | 659億8800万 | +3.93% |
| 01/23 | (IR情報)14:00 絶縁紙の製造・販売ノウハウのライセンス契約および棚卸資産譲受に関するお知らせ |
| 01/23 | 1,688 | 1,718 | 1,681 | 1,710 | +1.3% | 62,900 | 666億9000万 | +5.36% |
| 01/22 | 1,676 | 1,700 | 1,676 | 1,688 | +0.78% | 46,500 | 658億3200万 | +4.46% |
| 01/21 | 1,685 | 1,689 | 1,666 | 1,675 | -1.41% | 46,900 | 653億2500万 | +4.1% |
| 01/20 | 1,701 | 1,702 | 1,685 | 1,699 | -0.18% | 30,400 | 662億6100万 | +6.05% |
| 01/19 | 1,697 | 1,711 | 1,689 | 1,702 | +0.71% | 48,200 | 663億7800万 | +6.78% |
| 01/16 | 1,670 | 1,691 | 1,667 | 1,690 | +0.42% | 26,300 | 659億1000万 | +6.49% |
| 01/15 | 1,672 | 1,692 | 1,668 | 1,683 | +0.66% | 35,400 | 656億3700万 | +6.52% |
| 01/14 | 1,679 | 1,690 | 1,670 | 1,672 | -0.36% | 31,800 | 652億800万 | +6.36% |
| 01/13 | 1,713 | 1,713 | 1,669 | 1,678 | -0.53% | 77,300 | 654億4200万 | +7.22% |
| 01/09 | 1,660 | 1,707 | 1,660 | 1,687 | +2.06% | 81,600 | 657億9300万 | +8.35% |
| 01/08 | 1,640 | 1,658 | 1,635 | 1,653 | +1.1% | 85,000 | 644億6700万 | +6.71% |
| 01/07 | 1,610 | 1,643 | 1,604 | 1,635 | +1.24% | 62,000 | 637億6500万 | +5.89% |
| 01/06 | 1,602 | 1,624 | 1,602 | 1,615 | +1.44% | 38,700 | 629億8500万 | +4.94% |
| 01/05 | 1,596 | 1,607 | 1,589 | 1,592 | +0.76% | 30,600 | 620億8800万 | +3.65% |