| 2026 |
| 03/09 | 1,911 | 1,961 | 1,891 | 1,952 | -6.51% | 1,559,400 | 4240億5998万 | -8.23% |
| 03/06 | 2,061 | 2,108 | 2,041 | 2,088 | -0.67% | 837,200 | 4536億514万 | -1.83% |
| 03/05 | 2,133 | 2,175 | 2,083 | 2,102 | +3.8% | 1,302,000 | 4566億4656万 | -0.94% |
| 03/04 | 2,101 | 2,150 | 1,986 | 2,025 | -8.37% | 2,289,800 | 4399億1878万 | -4.39% |
| 03/03 | 2,307 | 2,355 | 2,210 | 2,210 | -5.72% | 1,996,500 | 4801億889万 | +4.44% |
| 03/02 | 2,380 | 2,380 | 2,308 | 2,344 | -1.68% | 2,054,800 | 5092億1957万 | +11.14% |
| 02/27 | 2,252 | 2,388 | 2,241 | 2,384 | +5.77% | 2,057,300 | 5179億932万 | +13.79% |
| 02/26 | 2,300 | 2,318 | 2,229 | 2,254 | +0.58% | 2,014,400 | 4896億6762万 | +8.47% |
| 02/25 | 2,245 | 2,268 | 2,223 | 2,241 | +0.95% | 1,581,900 | 4868億4345万 | +8.42% |
| 02/24 | (IR情報)17:00 取締役および執行役員の異動に関するお知らせ |
| 02/24 | 2,170 | 2,223 | 2,143 | 2,220 | +2.78% | 1,429,800 | 4822億8133万 | +7.92% |
| 02/20 | 2,192 | 2,199 | 2,127 | 2,160 | -2.35% | 1,388,500 | 4692億4670万 | +5.37% |
| 02/19 | 2,193 | 2,223 | 2,170 | 2,212 | +0.23% | 1,387,000 | 4805億4338万 | +7.9% |
| 02/18 | 2,180 | 2,226 | 2,145 | 2,207 | +2.46% | 1,807,000 | 4794億5716万 | +7.92% |
| 02/17 | 2,135 | 2,204 | 2,134 | 2,154 | +0.51% | 2,174,900 | 4679億4324万 | +5.8% |
| 02/16 | 2,150 | 2,170 | 2,125 | 2,143 | +3.98% | 1,627,100 | 4655億5355万 | +5.83% |
| 02/13 | 2,115 | 2,156 | 2,056 | 2,061 | -4.8% | 1,549,900 | 4477億3956万 | +2.49% |
| 02/12 | 2,086 | 2,181 | 2,085 | 2,165 | +5% | 2,389,200 | 4703億3292万 | +8.36% |
| 02/10 | 2,070 | 2,080 | 2,037 | 2,062 | +0.78% | 1,385,900 | 4479億5680万 | +4.25% |
| 02/09 | 2,072 | 2,072 | 1,990 | 2,046 | +0.1% | 1,968,600 | 4444億8090万 | +4.33% |
| 02/06 | (5%ルール)みずほ銀行(3.72%)アセットマネジメントOneインターナショナル(Asse…(0.37%)アセットマネジメントOne(2.31%) |
| 02/06 | 1,996 | 2,044 | 1,978 | 2,044 | +0.74% | 1,260,800 | 4440億4641万 | +5.2% |
| 02/05 | 2,100 | 2,116 | 2,025 | 2,029 | -2.59% | 1,629,100 | 4407億8776万 | +5.4% |
| 02/04 | 2,049 | 2,087 | 2,042 | 2,083 | +1.91% | 1,675,300 | 4525億1892万 | +9.17% |
| 02/03 | 2,043 | 2,048 | 1,998 | 2,044 | +3.91% | 1,374,200 | 4440億4641万 | +8.21% |
| 02/02 | 1,986 | 2,053 | 1,950 | 1,967 | -0.91% | 1,703,700 | 4273億1864万 | +5.13% |
| 01/30 | 1,979 | 2,039 | 1,945 | 1,985 | +1.95% | 2,204,900 | 4312億2903万 | +6.95% |
| 01/29 | (IR情報)15:30 業績予想の修正に関するお知らせ |
| 01/29 | (IR情報)15:30 2026年3月期第3四半期決算説明会 |
| 01/29 | (IR情報)15:30 2026年3月期第3四半期決算短信〔IFRS〕(連結) |
| 01/29 | 1,950 | 1,965 | 1,902 | 1,947 | -0.15% | 1,638,600 | 4229億7376万 | +5.76% |
| 01/28 | 1,988 | 1,988 | 1,930 | 1,950 | -2.99% | 1,164,400 | 4236億2549万 | +6.67% |
| 01/27 | 1,970 | 2,015 | 1,953 | 2,010 | +1.67% | 1,255,200 | 4366億6012万 | +10.87% |
| 01/27 | (空売り報告)JPM Securities Japan Co Ltd. 646,769株(0.29%)-0.36%義務消失 |
| 01/26 | 2,012 | 2,023 | 1,977 | 1,977 | -2.71% | 1,449,700 | 4294億9108万 | +10.08% |
| 01/23 | 2,027 | 2,057 | 2,001 | 2,032 | +1.65% | 1,585,500 | 4414億3949万 | +14.16% |
| 01/23 | (空売り報告)JPM Securities Japan Co Ltd. 1,415,469株(0.65%)-0.1% |
| 01/22 | 2,016 | 2,028 | 1,984 | 1,999 | +1.78% | 1,718,600 | 4342億7044万 | +13.39% |
| 01/21 | 1,912 | 1,985 | 1,903 | 1,964 | -0.46% | 1,639,200 | 4266億6691万 | +12.49% |
| 01/21 | (空売り報告)JPM Securities Japan Co Ltd. 1,648,269株(0.75%)+0.12% |
| 01/20 | 2,000 | 2,035 | 1,956 | 1,973 | -1.45% | 1,950,400 | 4286億2210万 | +14.11% |
| 01/19 | 2,038 | 2,038 | 1,981 | 2,002 | -1.38% | 2,244,100 | 4349億2217万 | +16.94% |
| 01/19 | (空売り報告)JPM Securities Japan Co Ltd. 1,370,469株(0.63%)-0.12% |
| 01/16 | 2,170 | 2,200 | 1,996 | 2,030 | -6.24% | 7,014,500 | 4410億500万 | +19.83% |
| 01/16 | (空売り報告)JPM Securities Japan Co Ltd. 1,647,569株(0.75%)新規 |
| 01/15 | 2,072 | 2,276 | 2,065 | 2,165 | +3.54% | 8,924,600 | 4703億3292万 | +29.25% |
| 01/14 | 1,998 | 2,142 | 1,981 | 2,091 | +5.61% | 6,319,300 | 4542億5687万 | +26.65% |
| 01/13 | 2,137 | 2,150 | 1,975 | 1,980 | +5.49% | 6,442,100 | 4301億4281万 | +21.4% |
| 01/09 | 1,820 | 1,912 | 1,806 | 1,877 | +4.05% | 3,783,700 | 4077億6669万 | +16.29% |
| 01/08 | 1,900 | 1,906 | 1,801 | 1,804 | +3.92% | 5,271,700 | 3919億789万 | +12.68% |
| 01/07 | 1,739 | 1,804 | 1,727 | 1,736 | +4.33% | 3,208,500 | 3771億3531万 | +9.11% |
| 01/06 | 1,637 | 1,677 | 1,628 | 1,664 | +3.03% | 953,300 | 3614億9375万 | +4.98% |
| 01/05 | 1,608 | 1,622 | 1,595 | 1,615 | +0.94% | 576,200 | 3508億4880万 | +2.22% |
| 2025 |
| 12/30 | 1,598 | 1,617 | 1,595 | 1,600 | -0.74% | 443,300 | 3475億9015万 | +1.52% |
| 12/29 | 1,611 | 1,624 | 1,601 | 1,612 | +0.56% | 486,800 | 3501億9707万 | +2.48% |
| 12/26 | 1,609 | 1,610 | 1,592 | 1,603 | +0.75% | 505,100 | 3482億4188万 | +2.23% |
| 12/25 | 1,607 | 1,613 | 1,584 | 1,591 | -0.62% | 393,500 | 3456億3495万 | +1.73% |
| 12/24 | 1,605 | 1,619 | 1,601 | 1,601 | -0.12% | 442,800 | 3478億739万 | +2.69% |
| 12/23 | 1,616 | 1,619 | 1,598 | 1,603 | -0.06% | 500,800 | 3482億4188万 | +3.22% |
| 12/22 | 1,627 | 1,636 | 1,597 | 1,604 | -0.37% | 833,700 | 3484億5912万 | +3.55% |
| 12/22 | (空売り報告)J.P. MORGAN SECURITIES PLC 638,000株(0.29%)-0.31%義務消失 |
| 12/19 | 1,593 | 1,619 | 1,589 | 1,610 | +1.51% | 703,500 | 3497億6259万 | +4.21% |
| 12/18 | 1,590 | 1,591 | 1,567 | 1,586 | +0.38% | 573,400 | 3445億4873万 | +2.92% |
| 12/17 | 1,571 | 1,588 | 1,551 | 1,580 | +0.51% | 538,900 | 3432億4527万 | +2.73% |
| 12/16 | 1,604 | 1,610 | 1,558 | 1,572 | -2.12% | 918,300 | 3415億732万 | +2.41% |
| 12/15 | 1,583 | 1,613 | 1,576 | 1,606 | +1.45% | 716,400 | 3488億9361万 | +4.83% |
| 12/15 | (空売り報告)J.P. MORGAN SECURITIES PLC 1,314,400株(0.6%)再IN |
| 12/12 | 1,554 | 1,587 | 1,543 | 1,583 | +3.67% | 708,300 | 3438億9700万 | +3.74% |
| 12/11 | 1,556 | 1,558 | 1,523 | 1,527 | -1.48% | 520,500 | 3317億3135万 | +0.33% |
| 12/10 | 1,563 | 1,569 | 1,549 | 1,550 | -0.64% | 659,300 | 3367億2795万 | +2.11% |
| 12/09 | 1,564 | 1,568 | 1,546 | 1,560 | -0.32% | 656,900 | 3389億39万 | +3.04% |
| 12/08 | 1,555 | 1,565 | 1,537 | 1,565 | -0.13% | 795,600 | 3399億8661万 | +3.64% |
| 12/05 | 1,566 | 1,580 | 1,561 | 1,567 | -0.89% | 555,800 | 3404億2110万 | +3.98% |
| 12/04 | 1,550 | 1,584 | 1,550 | 1,581 | +1.54% | 582,400 | 3434億6251万 | +5.4% |
| 12/03 | 1,558 | 1,568 | 1,545 | 1,557 | -0.19% | 745,000 | 3382億4866万 | +4.29% |
| 12/02 | 1,566 | 1,583 | 1,551 | 1,560 | +0.78% | 574,300 | 3389億39万 | +4.84% |
| 12/01 | 1,591 | 1,593 | 1,545 | 1,548 | -2.09% | 801,700 | 3362億9347万 | +4.38% |
| 11/28 | 1,541 | 1,602 | 1,537 | 1,581 | +2.8% | 956,900 | 3434億6251万 | +7.04% |
| 11/27 | (IR情報)15:00 スポンサードリサーチレポート発行のお知らせ |
| 11/27 | 1,530 | 1,557 | 1,526 | 1,538 | +0.92% | 645,400 | 3341億2103万 | +4.63% |
| 11/26 | 1,509 | 1,529 | 1,507 | 1,524 | +1.13% | 563,400 | 3310億7961万 | +4.31% |
| 11/25 | 1,515 | 1,517 | 1,495 | 1,507 | +0.74% | 468,300 | 3273億8647万 | +3.72% |
| 11/21 | 1,467 | 1,502 | 1,462 | 1,496 | 0% | 588,300 | 3249億9679万 | +3.53% |
| 11/20 | 1,490 | 1,510 | 1,483 | 1,496 | +2.19% | 651,300 | 3249億9679万 | +4.03% |
| 11/19 | 1,463 | 1,472 | 1,433 | 1,464 | +0.76% | 630,800 | 3180億4498万 | +2.31% |
| 11/18 | 1,505 | 1,515 | 1,450 | 1,453 | -3.71% | 871,200 | 3156億5530万 | +1.96% |
| 11/17 | 1,494 | 1,512 | 1,475 | 1,509 | +0.8% | 710,700 | 3278億2096万 | +6.42% |
| 11/14 | 1,488 | 1,514 | 1,481 | 1,497 | -1.64% | 691,300 | 3252億1403万 | +6.02% |
| 11/13 | 1,533 | 1,535 | 1,514 | 1,522 | +0.79% | 682,600 | 3306億4513万 | +8.33% |
| 11/12 | 1,496 | 1,540 | 1,488 | 1,510 | +0.87% | 1,058,100 | 3280億3820万 | +8.09% |
| 11/11 | 1,491 | 1,498 | 1,472 | 1,497 | +0.27% | 585,200 | 3252億1403万 | +7.78% |
| 11/10 | 1,485 | 1,495 | 1,475 | 1,493 | +1.77% | 614,000 | 3243億4506万 | +8.19% |
| 11/07 | 1,474 | 1,489 | 1,454 | 1,467 | -0.54% | 768,300 | 3186億9672万 | +7% |
| 11/06 | 1,451 | 1,482 | 1,441 | 1,475 | +2.57% | 814,500 | 3204億3467万 | +8.22% |
| 11/05 | 1,415 | 1,453 | 1,398 | 1,438 | -0.35% | 1,054,400 | 3123億9664万 | +6.13% |
| 11/04 | 1,465 | 1,486 | 1,437 | 1,443 | -1.3% | 883,900 | 3134億8286万 | +6.97% |
| 10/31 | 1,500 | 1,501 | 1,439 | 1,462 | -1.42% | 1,525,700 | 3176億1050万 | +8.78% |
| 10/30 | (IR情報)11:40 大同特殊鋼グループ2026中期経営計画再設計について |
| 10/30 | (IR情報)11:40 2026年3月期第2四半期決算説明会 |
| 10/30 | (IR情報)11:40 業績予想の修正に関するお知らせ |
| 10/30 | (IR情報)11:40 第2四半期業績予想と実績との差異に関するお知らせ |
| 10/30 | (IR情報)11:40 株主還元方針の変更、剰余金の配当および配当予想の修正に関するお知らせ |
| 10/30 | (IR情報)11:40 2026年3月期第2四半期(中間期)決算短信〔IFRS〕(連結) |
| 10/30 | 1,369 | 1,545 | 1,360 | 1,483 | +6.31% | 4,117,500 | 3221億7262万 | +10.84% |
| 10/29 | 1,418 | 1,424 | 1,389 | 1,395 | -0.57% | 773,900 | 3030億5516万 | +4.81% |
| 10/28 | 1,442 | 1,444 | 1,403 | 1,403 | -1.89% | 1,123,200 | 3047億9311万 | +5.65% |
| 10/27 | 1,450 | 1,461 | 1,408 | 1,430 | -0.49% | 1,575,600 | 3106億5869万 | +8.01% |
| 10/24 | 1,414 | 1,442 | 1,404 | 1,437 | +2.64% | 1,330,000 | 3121億7940万 | +8.95% |
| 10/23 | 1,418 | 1,425 | 1,375 | 1,400 | -0.43% | 1,544,800 | 3041億4138万 | +6.54% |
| 10/22 | 1,339 | 1,414 | 1,333 | 1,406 | +6.68% | 1,970,700 | 3054億4484万 | +7.25% |
| 10/21 | 1,330 | 1,339 | 1,314 | 1,318 | -0.23% | 462,700 | 2863億2738万 | +0.92% |
| 10/20 | 1,324 | 1,325 | 1,313 | 1,321 | +0.69% | 267,400 | 2869億7911万 | +1.15% |
| 10/17 | 1,320 | 1,322 | 1,307 | 1,312 | -0.76% | 365,400 | 2850億2392万 | +0.54% |
| 10/16 | 1,325 | 1,328 | 1,318 | 1,322 | -0.08% | 337,700 | 2871億9636万 | +1.3% |
| 10/15 | 1,332 | 1,337 | 1,319 | 1,323 | +0.61% | 482,200 | 2874億1360万 | +1.3% |
| 10/14 | 1,262 | 1,330 | 1,262 | 1,315 | +2.49% | 1,058,400 | 2856億7565万 | +0.69% |
| 10/10 | 1,331 | 1,331 | 1,274 | 1,283 | -4.68% | 521,000 | 2787億2385万 | -1.76% |
| 10/09 | 1,327 | 1,350 | 1,325 | 1,346 | +1.28% | 519,200 | 2924億1021万 | +3.06% |
| 10/08 | 1,316 | 1,334 | 1,314 | 1,329 | +0.3% | 534,200 | 2887億1707万 | +1.84% |