日付	始値	高値	安値	終値	前日比	出来高	時価総額	25日乖離
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	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	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	15:30 業績予想の修正に関するお知らせ
01/29	15:30 2026年3月期第3四半期決算説明会
01/29	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%
01/26	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%
01/22	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%
01/20	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%
01/16	2,170	2,200	1,996	2,030	-6.24%	7,014,500	4410億500万	+19.83%
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%
12/19	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%
12/12	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	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	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	11:40 2026年3月期第2四半期決算説明会
10/30	11:40 業績予想の修正に関するお知らせ
10/30	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	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	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%

大同特殊鋼（5471）のIR情報・決算資料

2025/10/08～2026/03/09

IR情報＆株価推移

開示資料

決算

株式

チャート