| 2026 |
| 03/06 | 9,780 | 10,010 | 9,478 | 9,897 | -0.78% | 10,041,700 | 7兆8576億 | +10.85% |
| 03/05 | 10,440 | 10,495 | 9,901 | 9,975 | +0.3% | 9,290,600 | 7兆9195億 | +13.19% |
| 03/04 | 9,842 | 10,425 | 9,602 | 9,945 | -3.68% | 15,204,400 | 7兆8957億 | +14.56% |
| 03/03 | 11,420 | 11,495 | 10,270 | 10,325 | -4.97% | 11,241,200 | 8兆1974億 | +20.83% |
| 03/02 | 9,985 | 10,940 | 9,969 | 10,865 | +4.72% | 9,207,700 | 8兆6261億 | +29.33% |
| 02/27 | 9,752 | 10,400 | 9,593 | 10,375 | +1.32% | 10,124,200 | 8兆2371億 | +25.99% |
| 02/26 | 10,790 | 10,800 | 10,130 | 10,240 | -4.43% | 9,888,100 | 8兆1299億 | +26.62% |
| 02/25 | 10,545 | 10,895 | 10,385 | 10,715 | +3.13% | 9,575,400 | 8兆5070億 | +34.92% |
| 02/24 | 10,200 | 10,895 | 10,200 | 10,390 | +6.59% | 12,549,000 | 8兆2490億 | +33.5% |
| 02/20 | 9,259 | 9,903 | 9,232 | 9,748 | +4.59% | 15,076,800 | 7兆7393億 | +27.57% |
| 02/19 | 9,020 | 9,484 | 8,992 | 9,320 | +5.6% | 11,917,400 | 7兆3995億 | +23.95% |
| 02/18 | 8,512 | 8,965 | 8,453 | 8,826 | +2.02% | 5,499,500 | 7兆73億 | +19.17% |
| 02/17 | 8,644 | 8,815 | 8,487 | 8,651 | -0.02% | 5,261,300 | 6兆8683億 | +18.31% |
| 02/16 | 8,820 | 8,874 | 8,632 | 8,653 | +0.7% | 4,100,100 | 6兆8699億 | +19.88% |
| 02/13 | 8,690 | 8,899 | 8,540 | 8,593 | -2.02% | 8,134,200 | 6兆8223億 | +20.59% |
| 02/12 | 8,546 | 9,004 | 8,475 | 8,770 | +0.48% | 12,577,400 | 6兆9628億 | +24.43% |
| 02/10 | 8,733 | 8,882 | 8,571 | 8,728 | +4.31% | 8,858,100 | 6兆9295億 | +25.44% |
| 02/09 | 8,400 | 8,578 | 8,136 | 8,367 | +10.97% | 14,295,700 | 6兆6429億 | +21.65% |
| 02/06 | 7,277 | 7,580 | 7,190 | 7,540 | +1.8% | 8,982,900 | 5兆9863億 | +10.95% |
| 02/05 | 7,720 | 7,800 | 7,234 | 7,407 | -5.44% | 10,388,500 | 5兆8807億 | +9.77% |
| 02/04 | 7,930 | 8,239 | 7,732 | 7,833 | +2.33% | 19,803,200 | 6兆2189億 | +16.88% |
| 02/03 | (IR情報)15:00 2026年3月期通期の連結業績予想の修正に関するお知らせ |
| 02/03 | (IR情報)15:00 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/03 | 6,915 | 7,804 | 6,852 | 7,655 | +12.51% | 20,974,000 | 6兆776億 | +15.11% |
| 02/02 | 6,740 | 7,050 | 6,716 | 6,804 | +1.19% | 7,519,100 | 5兆4019億 | +3.03% |
| 01/30 | 6,772 | 6,914 | 6,686 | 6,724 | -1.98% | 4,809,900 | 5兆3384億 | +1.94% |
| 01/29 | 7,042 | 7,115 | 6,809 | 6,860 | -2.14% | 5,121,400 | 5兆4464億 | +3.97% |
| 01/28 | 6,965 | 7,188 | 6,901 | 7,010 | +4.96% | 8,743,500 | 5兆5655億 | +6.62% |
| 01/27 | 6,523 | 6,718 | 6,486 | 6,679 | +2.02% | 3,665,500 | 5兆3027億 | +2.16% |
| 01/26 | 6,625 | 6,734 | 6,540 | 6,547 | -2.65% | 4,355,800 | 5兆1979億 | +0.35% |
| 01/23 | 6,845 | 6,897 | 6,715 | 6,725 | +0.24% | 4,409,700 | 5兆3392億 | +3.27% |
| 01/22 | 6,890 | 6,967 | 6,669 | 6,709 | +0.28% | 4,738,500 | 5兆3265億 | +3.09% |
| 01/21 | 6,409 | 6,735 | 6,403 | 6,690 | +1.41% | 5,273,800 | 5兆3114億 | +2.83% |
| 01/20 | 6,800 | 6,810 | 6,526 | 6,597 | -2.27% | 4,590,500 | 5兆2376億 | +1.41% |
| 01/19 | 6,636 | 6,777 | 6,601 | 6,750 | -1.14% | 4,098,400 | 5兆3590億 | +3.54% |
| 01/16 | 6,720 | 6,908 | 6,693 | 6,828 | +1.67% | 5,332,900 | 5兆4210億 | +4.52% |
| 01/15 | 6,550 | 6,784 | 6,548 | 6,716 | +3.66% | 6,408,600 | 5兆3321億 | +2.72% |
| 01/14 | 6,565 | 6,579 | 6,375 | 6,479 | 0% | 4,850,500 | 5兆1439億 | -0.87% |
| 01/13 | 6,582 | 6,624 | 6,428 | 6,479 | +2.78% | 7,538,000 | 5兆1439億 | -1.02% |
| 01/09 | 6,345 | 6,350 | 6,115 | 6,304 | -0.82% | 10,274,000 | 5兆50億 | -3.9% |
| 01/08 | (5%ルール)三井住友トラスト・アセットマネジメント(2.53%)アモーヴァ・アセットマネジメント(2.4%)三井住友信託銀行(0.32%) |
| 01/08 | 6,601 | 6,632 | 6,340 | 6,356 | -4.38% | 7,853,600 | 5兆462億 | -3.26% |
| 01/07 | 6,542 | 6,836 | 6,535 | 6,647 | +1.84% | 9,009,000 | 5兆2773億 | +1.19% |
| 01/06 | 6,643 | 6,651 | 6,394 | 6,527 | -2.73% | 9,784,000 | 5兆1820億 | -0.34% |
| 01/05 | 6,525 | 6,785 | 6,452 | 6,710 | +6.09% | 6,979,500 | 5兆3273億 | +2.73% |
| 2025 |
| 12/30 | 6,324 | 6,433 | 6,225 | 6,325 | -0.17% | 3,855,300 | 5兆216億 | -2.77% |
| 12/29 | 6,326 | 6,499 | 6,300 | 6,336 | +1.29% | 5,132,000 | 5兆304億 | -2.45% |
| 12/26 | 6,574 | 6,574 | 6,218 | 6,255 | -4.36% | 6,026,100 | 4兆9660億 | -3.31% |
| 12/25 | 6,510 | 6,563 | 6,437 | 6,540 | +0.58% | 2,564,800 | 5兆1923億 | +1% |
| 12/24 | 6,551 | 6,581 | 6,482 | 6,502 | -1.6% | 4,289,100 | 5兆1622億 | +0.79% |
| 12/23 | 6,661 | 6,671 | 6,543 | 6,608 | -2.26% | 4,478,600 | 5兆2463億 | +2.8% |
| 12/22 | 6,545 | 6,764 | 6,509 | 6,761 | +7.27% | 6,909,100 | 5兆3678億 | +5.23% |
| 12/19 | 6,188 | 6,374 | 6,172 | 6,303 | +3.67% | 6,104,000 | 5兆42億 | -1.62% |
| 12/18 | 6,100 | 6,234 | 6,033 | 6,080 | -3.81% | 4,531,600 | 4兆8271億 | -5.13% |
| 12/17 | 6,311 | 6,424 | 6,132 | 6,321 | +1.27% | 6,768,400 | 5兆184億 | -1.3% |
| 12/16 | (IR情報)15:30 住友理工株式会社に対する公開買付けの結果に関するお知らせ |
| 12/16 | 6,350 | 6,455 | 6,170 | 6,242 | -5.88% | 8,500,100 | 4兆9557億 | -2.25% |
| 12/15 | 6,500 | 6,654 | 6,480 | 6,632 | -0.41% | 5,403,800 | 5兆2654億 | +3.98% |
| 12/12 | 6,672 | 6,761 | 6,624 | 6,659 | -0.18% | 6,163,400 | 5兆2868億 | +4.93% |
| 12/11 | 6,969 | 6,989 | 6,652 | 6,671 | -3.82% | 7,131,900 | 5兆2963億 | +5.42% |
| 12/10 | 7,151 | 7,215 | 6,815 | 6,936 | -2.43% | 11,046,300 | 5兆5067億 | +10.13% |
| 12/09 | 7,013 | 7,189 | 6,946 | 7,109 | +2.42% | 8,157,500 | 5兆6441億 | +13.51% |
| 12/08 | 6,700 | 6,951 | 6,690 | 6,941 | +3.99% | 6,756,500 | 5兆5107億 | +11.88% |
| 12/05 | 6,572 | 6,713 | 6,462 | 6,675 | -0.67% | 7,881,000 | 5兆2995億 | +8.73% |
| 12/04 | 6,739 | 6,757 | 6,592 | 6,720 | -1.74% | 8,209,100 | 5兆3352億 | +10.69% |
| 12/03 | 6,634 | 7,008 | 6,590 | 6,839 | +4.17% | 13,909,700 | 5兆4297億 | +14.12% |
| 12/02 | 6,400 | 6,686 | 6,396 | 6,565 | +3.71% | 11,581,700 | 5兆2122億 | +11.08% |
| 12/01 | 6,183 | 6,390 | 6,038 | 6,330 | +3.08% | 9,017,400 | 5兆256億 | +8.54% |
| 11/28 | 6,189 | 6,262 | 6,091 | 6,141 | +0.85% | 4,490,200 | 4兆8755億 | +6.61% |
| 11/27 | 6,151 | 6,214 | 6,074 | 6,089 | +0.63% | 3,666,900 | 4兆8343億 | +6.94% |
| 11/26 | (IR情報)15:30 (訂正)公開買付届出書の訂正届出書の提出に伴う「住友理工株式に対する公開買付けの開始に関するお知らせ」及び公開買付開始公告の一部訂正に関するお知らせ |
| 11/26 | 5,951 | 6,195 | 5,919 | 6,051 | -0.18% | 5,382,300 | 4兆8041億 | +7.44% |
| 11/25 | 5,898 | 6,184 | 5,871 | 6,062 | +6.39% | 9,114,500 | 4兆8128億 | +8.77% |
| 11/21 | 5,888 | 5,970 | 5,668 | 5,698 | -10.8% | 15,065,600 | 4兆5238億 | +3.43% |
| 11/20 | 6,320 | 6,460 | 6,286 | 6,388 | +7.51% | 8,774,000 | 5兆716億 | +16.93% |
| 11/19 | 5,980 | 6,108 | 5,813 | 5,942 | +0.02% | 7,142,000 | 4兆7175億 | +10.34% |
| 11/18 | 6,203 | 6,231 | 5,941 | 5,941 | -9.06% | 9,713,500 | 4兆7168億 | +11.67% |
| 11/17 | 6,300 | 6,544 | 6,248 | 6,533 | +3.75% | 6,559,200 | 5兆1868億 | +24.11% |
| 11/14 | 6,075 | 6,315 | 6,012 | 6,297 | -1.22% | 8,741,700 | 4兆9994億 | +21.38% |
| 11/13 | 6,127 | 6,580 | 6,095 | 6,375 | +7.05% | 11,341,300 | 5兆613億 | +24.58% |
| 11/12 | 5,860 | 5,955 | 5,760 | 5,955 | +1.62% | 4,597,400 | 4兆7279億 | +18.13% |
| 11/11 | 6,130 | 6,228 | 5,827 | 5,860 | -2.82% | 7,241,200 | 4兆6524億 | +17.74% |
| 11/10 | 5,825 | 6,092 | 5,766 | 6,030 | +2.99% | 7,633,900 | 4兆7874億 | +22.81% |
| 11/07 | 6,020 | 6,073 | 5,760 | 5,855 | -5.67% | 8,538,800 | 4兆6485億 | +21.05% |
| 11/06 | 6,100 | 6,250 | 5,975 | 6,207 | +5.17% | 9,302,100 | 4兆9279億 | +30.18% |
| 11/05 | 5,962 | 6,031 | 5,627 | 5,902 | -2.64% | 12,241,200 | 4兆6858億 | +25.87% |
| 11/04 | 6,350 | 6,629 | 6,036 | 6,062 | +7.29% | 23,844,500 | 4兆8128億 | +31.16% |
| 10/31 | (IR情報)15:00 2026年3月期第2四半期(中間期)連結業績予想と実績値との差異及び通期連結業績予想の修正並びに配当予想の修正に関するお知らせ |
| 10/31 | (IR情報)15:00 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 10/31 | 5,320 | 5,944 | 5,053 | 5,650 | +6.62% | 15,669,400 | 4兆4857億 | +24.18% |
| 10/30 | (IR情報)13:15 連結子会社(住友電設株式会社)に対する公開買付に係る契約締結及び連結子会社の異動(予定)に関するお知らせ |
| 10/30 | (IR情報)12:00 住友理工株式会社株式に対する公開買付けの開始に関するお知らせ |
| 10/30 | 4,994 | 5,379 | 4,989 | 5,299 | +6.11% | 11,547,200 | 4兆2070億 | +17.86% |
| 10/29 | 4,850 | 5,027 | 4,820 | 4,994 | +4.96% | 6,359,900 | 3兆9649億 | +12.15% |
| 10/28 | 4,822 | 4,895 | 4,749 | 4,758 | -0.25% | 4,781,900 | 3兆7775億 | +7.67% |
| 10/27 | 4,750 | 4,780 | 4,672 | 4,770 | +3.47% | 3,742,100 | 3兆7870億 | +8.51% |
| 10/24 | 4,579 | 4,619 | 4,530 | 4,610 | +1.77% | 2,939,600 | 3兆6600億 | +5.4% |
| 10/23 | 4,430 | 4,537 | 4,404 | 4,530 | +0.8% | 2,870,400 | 3兆5965億 | +4.02% |
| 10/22 | 4,527 | 4,529 | 4,411 | 4,494 | -0.88% | 4,280,800 | 3兆5679億 | +3.43% |
| 10/21 | 4,582 | 4,612 | 4,503 | 4,534 | -0.94% | 2,918,800 | 3兆5997億 | +4.66% |
| 10/20 | 4,495 | 4,577 | 4,434 | 4,577 | +2.67% | 2,981,900 | 3兆6338億 | +5.95% |
| 10/17 | 4,425 | 4,496 | 4,409 | 4,458 | -1.89% | 3,158,400 | 3兆5393億 | +3.46% |
| 10/16 | 4,500 | 4,567 | 4,462 | 4,544 | +2.41% | 3,334,800 | 3兆6076億 | +5.8% |
| 10/15 | 4,323 | 4,457 | 4,315 | 4,437 | +2.49% | 2,656,500 | 3兆5227億 | +3.6% |
| 10/14 | 4,465 | 4,505 | 4,317 | 4,329 | -4.54% | 4,267,800 | 3兆4369億 | +1.36% |
| 10/10 | 4,560 | 4,604 | 4,526 | 4,535 | -2.05% | 4,163,800 | 3兆6005億 | +6.41% |
| 10/09 | 4,603 | 4,671 | 4,578 | 4,630 | +2.14% | 3,752,000 | 3兆6759億 | +9.1% |
| 10/08 | 4,466 | 4,563 | 4,442 | 4,533 | +1.52% | 3,817,600 | 3兆5989億 | +7.39% |
| 10/07 | 4,398 | 4,646 | 4,397 | 4,465 | +2.43% | 5,812,600 | 3兆5449億 | +6.23% |