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
10/02	（5%ルール）みずほ信託銀行（3.86%）みずほ証券（0.22%）アセットマネジメントOneインターナショナル(Asse…（0.11%）アセットマネジメントOne（3.69%）みずほ銀行（1.18%）
09/30	2,109	2,125	2,092	2,112	+1.29%	349,000	-	-0.61%
09/29	2,110	2,133	2,076	2,085	-3.47%	369,700	-	-1.79%
09/28	2,180	2,192	2,155	2,160	+0.09%	364,400	-	+1.79%
09/25	2,150	2,171	2,135	2,158	-0.09%	340,700	-	+2.03%
09/24	2,212	2,215	2,160	2,160	-1.32%	463,000	-	+2.27%
09/24	（空売り報告）Barclays Capital Securities Ltd 573,600株（0.65%）-0.22%
09/18	2,210	2,222	2,173	2,189	-0.73%	474,600	-	+3.74%
09/17	2,174	2,205	2,174	2,205	+1.61%	366,500	-	+4.7%
09/16	2,160	2,195	2,155	2,170	+1.4%	283,800	-	+3.33%
09/16	（空売り報告）Barclays Capital Securities Ltd 767,200株（0.87%）再IN
09/15	2,102	2,142	2,092	2,140	+1.13%	365,200	-	+2.15%
09/14	2,061	2,130	2,057	2,116	+2.37%	437,600	-	+1.29%
09/11	2,011	2,083	2,006	2,067	-0.72%	497,800	-	-0.86%
09/10	2,099	2,124	2,055	2,082	-2.71%	418,400	-	-0.14%
09/09	2,100	2,147	2,095	2,140	+1.71%	394,600	-	+2.54%
09/08	（IR情報）17:10 株式会社シェアードリサーチによる当社レポート更新のお知らせ
09/08	2,138	2,158	2,101	2,104	-1.59%	317,300	-	+0.96%
09/07	2,156	2,169	2,111	2,138	+2.44%	527,900	-	+2.74%
09/04	2,115	2,116	2,048	2,087	-0.76%	507,800	-	+0.53%
09/03	2,097	2,114	2,078	2,103	+0.77%	336,700	-	+1.4%
09/02	2,123	2,140	2,062	2,087	-3.2%	526,400	-	+0.87%
09/01	2,116	2,156	2,111	2,156	+1.79%	514,200	-	+4.26%
08/31	（IR情報）18:00 東亜建設工業「統合報告書2026」を公開しました
08/31	2,122	2,141	2,100	2,118	-0.75%	545,100	-	+2.57%
08/28	2,120	2,147	2,110	2,134	-0.42%	681,400	-	+3.49%
08/27	2,108	2,145	2,101	2,143	+1.81%	412,700	-	+4.08%
08/26	2,095	2,113	2,081	2,105	+1.15%	363,000	-	+2.43%
08/25	2,094	2,107	2,055	2,081	-0.53%	346,600	-	+1.41%
08/24	2,036	2,099	2,020	2,092	+1.8%	460,900	-	+2.15%
08/21	2,015	2,055	2,012	2,055	+0.05%	296,200	-	+0.49%
08/20	2,016	2,060	2,009	2,054	+3.27%	416,000	-	+0.39%
08/19	2,085	2,090	1,978	1,989	-5.15%	683,000	-	-2.79%
08/18	（IR情報）10:00 「JPX 日経インデックス 400」および「JPX日経中小型株指数」の構成銘柄に選定
08/18	2,105	2,148	2,081	2,097	-0.62%	389,500	-	+2.49%
08/17	（IR情報）17:15 2027年3月期第1四半期決算説明会アーカイブ配信及び書き起こし記事公開のお知らせ
08/17	2,150	2,245	2,102	2,110	+1.3%	677,000	-	+3.23%
08/14	2,057	2,097	2,031	2,083	+1.31%	476,400	-	+2.01%
08/13	2,049	2,061	2,027	2,056	+1.33%	306,100	-	+0.73%
08/12	2,046	2,052	2,006	2,029	+1.15%	415,500	-	-0.73%
08/10	2,015	2,034	1,995	2,006	-0.3%	406,200	-	-2.1%
08/07	2,050	2,080	2,000	2,012	-2.61%	526,800	-	-1.95%
08/06	（IR情報）13:00 2027年3月期第1四半期決算短信〔日本基準〕(連結)
08/06	2,130	2,175	2,014	2,066	-3.05%	751,800	-	+0.58%
08/05	2,070	2,163	2,068	2,131	+3.6%	666,900	-	+3.8%
08/04	2,014	2,075	2,014	2,057	+1.58%	392,900	-	+0.29%
08/03	2,020	2,037	1,968	2,025	-0.54%	352,800	-	-1.32%
07/31	2,035	2,059	2,002	2,036	+0.54%	419,200	-	-0.88%
07/30	1,977	2,036	1,952	2,025	+1.76%	408,400	-	-1.41%
07/29	2,050	2,067	1,962	1,990	-2.88%	633,000	-	-3.3%
07/28	2,086	2,086	2,030	2,049	-1.87%	339,900	-	-0.63%
07/27	2,095	2,096	2,040	2,088	+2.45%	302,800	-	+0.92%
07/24	2,045	2,057	2,022	2,038	-0.92%	239,500	-	-1.74%
07/23	2,056	2,066	2,037	2,057	+0.93%	233,400	-	-1.25%
07/22	2,030	2,064	2,022	2,038	+0.59%	324,900	-	-2.53%
07/21	1,992	2,032	1,975	2,026	+2.07%	423,200	-	-3.57%
07/17	2,015	2,033	1,931	1,985	-2.46%	552,900	-	-6.1%
07/16	2,060	2,096	2,025	2,035	-2.07%	236,500	-	-3.96%
07/15	2,063	2,122	2,044	2,078	+2.01%	321,500	-	-2.03%
07/14	2,021	2,048	1,994	2,037	+1.49%	375,300	-	-4.05%
07/13	2,047	2,063	1,995	2,007	-1.86%	323,200	-	-5.69%
07/10	2,066	2,076	2,041	2,045	-0.1%	260,300	-	-4.13%
07/09	（IR情報）17:36 ESG投資指数「FTSE JPX Blossom Japan Sector Relative Index」の構成銘柄に2年連続で選定
07/09	2,060	2,070	2,037	2,047	-0.82%	255,000	-	-4.3%
07/08	2,089	2,108	2,063	2,064	-3.1%	331,500	-	-3.69%
07/07	2,170	2,225	2,130	2,130	-1.3%	549,500	-	-0.84%
07/06	2,100	2,181	2,100	2,158	+3.55%	477,900	-	+0.37%
07/03	2,080	2,098	2,043	2,084	+1.36%	260,100	-	-3.2%
07/03	（空売り報告）Barclays Capital Securities Ltd 251,200株（0.28%）-0.22%義務消失
07/02	2,054	2,097	2,037	2,056	+0.54%	412,200	-	-4.99%
07/02	（空売り報告）Barclays Capital Securities Ltd 445,451株（0.5%）再IN
07/01	2,075	2,093	2,035	2,045	-1.26%	349,600	-	-5.93%
06/30	2,119	2,134	2,060	2,071	-0.67%	591,100	-	-5.3%
06/29	2,099	2,125	2,047	2,085	+0.63%	513,600	-	-5.53%
06/26	2,021	2,091	2,008	2,072	+1.42%	584,500	-	-6.75%
06/25	2,165	2,180	2,043	2,043	-3.4%	562,200	-	-8.63%
06/24	2,114	2,134	2,082	2,115	+0.28%	426,600	-	-5.96%
06/23	2,217	2,230	2,103	2,109	-4.53%	400,300	-	-6.64%
06/22	2,201	2,218	2,171	2,209	-0.36%	406,100	-	-2.86%
06/19	2,240	2,262	2,186	2,217	-1.6%	734,100	-	-3.02%
06/18	2,282	2,307	2,236	2,253	-0.88%	451,700	-	-2.13%
06/17	2,300	2,339	2,273	2,273	+0.13%	331,300	-	-1.77%
06/16	2,335	2,341	2,265	2,270	-3.57%	590,600	-	-2.78%
06/15	2,161	2,363	2,159	2,354	+11.51%	1,160,400	-	-0.25%
06/12	2,092	2,141	2,080	2,111	+1.44%	826,000	-	-11.3%
06/11	（IR情報）13:00 株式会社シェアードリサーチによる当社レポート更新のお知らせ
06/11	2,045	2,088	2,008	2,081	-2.25%	607,600	-	-13.65%
06/10	2,089	2,140	2,072	2,129	-1.71%	435,900	-	-12.75%
06/09	2,154	2,184	2,131	2,166	+1.69%	519,500	-	-12.2%
06/08	2,100	2,144	2,091	2,130	-3.09%	594,300	-	-14.53%
06/05	2,158	2,210	2,148	2,198	+1.85%	416,500	-	-12.98%
06/04	2,141	2,192	2,140	2,158	-1.1%	338,100	-	-15.37%
06/03	2,200	2,208	2,140	2,182	-0.05%	491,000	-	-15.2%
06/02	2,215	2,233	2,147	2,183	-2.46%	630,100	-	-15.97%
06/01	（IR情報）15:00 取締役会の実効性評価結果の概要について
06/01	（IR情報）11:00 CDP「サプライヤーエンゲージメント・リーダー」（最高評価）に３年連続で選定
06/01	2,302	2,327	2,237	2,238	-4.52%	555,300	-	-14.65%
05/29	2,316	2,388	2,286	2,344	+1.21%	654,500	-	-11.48%
05/28	2,351	2,375	2,281	2,316	-2.36%	554,100	-	-13.26%
05/27	2,523	2,532	2,368	2,372	-7.27%	664,800	-	-11.99%
05/26	2,461	2,614	2,430	2,558	+3.98%	715,100	-	-5.92%
05/25	（IR情報）16:05 2026年3月期通期決算説明会動画アーカイブ配信及び書き起こし記事公開のお知らせ
05/25	2,445	2,514	2,441	2,460	+1.57%	347,100	-	-10.02%
05/22	2,383	2,480	2,383	2,422	+1.64%	633,600	-	-12.18%
05/21	2,406	2,432	2,363	2,383	+0.51%	556,700	-	-14.31%
05/20	2,450	2,450	2,348	2,371	-4.05%	938,400	-	-15.56%
05/19	2,507	2,546	2,457	2,471	-1.98%	814,200	-	-12.96%
05/18	2,585	2,585	2,485	2,521	-2.93%	751,600	-	-12.22%
05/15	2,601	2,643	2,553	2,597	+1.48%	669,600	-	-10.42%
05/14	2,800	2,800	2,559	2,559	-8.9%	1,209,700	-	-12.42%
05/13	（IR情報）13:00 工事損失引当金繰入額の計上に関するお知らせ
05/13	（IR情報）13:00 剰余金の配当(増配)に関するお知らせ
05/13	（IR情報）13:00 2026年3月期決算短信〔日本基準〕(連結)
05/13	2,894	2,931	2,741	2,809	-2.94%	1,713,700	-	-4.75%
05/13	（空売り報告）Citigroup Global Markets Limited 256,988株（0.29%）-0.3%義務消失
05/12	2,903	2,963	2,874	2,894	+1.44%	572,000	-	-2.36%
05/11	2,830	2,917	2,815	2,853	-0.04%	448,400	-	-4.23%
05/08	2,842	2,866	2,803	2,854	+0.42%	450,900	-	-4.42%
05/07	2,815	2,890	2,815	2,842	+1.32%	444,500	-	-5.24%
05/07	（空売り報告）Citigroup Global Markets Limited 520,416株（0.59%）-0.01%
05/01	（空売り報告）Citigroup Global Markets Limited 529,416株（0.6%）+0.02%

東亜建設工業（1885）のイベントチャート

2026/05/07～2026/09/30

イベント情報＆株価推移

開示資料

決算

株式

チャート