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	522	524	513	524	0%	1,400	-	-0.19%
10/01	532	532	523	524	-2.42%	1,800	-	-0.19%
09/30	529	548	521	537	+1.13%	4,600	-	+2.48%
09/29	517	531	517	531	-1.67%	3,100	-	+1.72%
09/28	533	549	533	540	+1.5%	6,700	-	+3.65%
09/25	527	532	527	532	+1.92%	2,700	-	+2.31%
09/24	529	529	522	522	+0.97%	3,100	-	+0.58%
09/18	518	524	517	517	-0.58%	1,300	-	-0.19%
09/17	521	521	519	520	-0.19%	1,500	-	+0.58%
09/16	529	529	520	521	-0.76%	3,700	-	+0.97%
09/15	532	532	523	525	-1.32%	2,600	-	+1.94%
09/14	527	532	527	532	+1.53%	3,800	-	+3.5%
09/11	535	535	524	524	-2.06%	4,900	-	+2.34%
09/10	538	538	534	535	-0.56%	3,300	-	+4.7%
09/09	548	564	530	538	-3.58%	8,600	-	+5.7%
09/08	536	568	525	558	+5.28%	19,100	-	+9.84%
09/07	521	530	520	530	+0.38%	1,500	-	+4.74%
09/04	515	530	515	528	+3.53%	1,800	-	+4.55%
09/03	511	511	510	510	-0.2%	500	-	+1.19%
09/02	533	533	509	511	-4.31%	1,800	-	+1.59%
09/01	536	536	533	534	+0.38%	4,700	-	+6.16%
08/31	507	535	506	532	+5.14%	3,800	-	+6.19%
08/28	501	506	501	506	+0.2%	300	-	+1.4%
08/27	501	505	501	505	+1.2%	600	-	+1.2%
08/26	503	508	498	499	-0.6%	6,300	-	0%
08/25	506	506	498	502	-0.59%	4,400	-	+0.6%
08/24	504	506	504	505	0%	300	-	+1.2%
08/21	497	505	497	505	+0.2%	2,200	-	+1.2%
08/20	499	504	499	504	+1.2%	2,500	-	+1%
08/19	500	506	497	498	-0.99%	5,200	-	-0.2%
08/18	504	510	503	503	-0.4%	3,000	-	+0.8%
08/17	510	512	500	505	+1.81%	10,600	-	+1.2%
08/14	（IR情報）14:00 業績予想の修正に関するお知らせ
08/14	（IR情報）14:00 2027年3月期第1四半期決算短信〔日本基準〕(連結)
08/14	507	531	493	496	-0.6%	87,100	-	-0.6%
08/13	497	511	496	499	+0.4%	5,600	-	-0.2%
08/12	498	500	496	497	+0.4%	2,300	-	-0.8%
08/10	498	507	494	495	+0.61%	4,900	-	-1.39%
08/07	485	493	485	492	+1.65%	4,900	-	-1.99%
08/06	496	496	484	484	-2.42%	3,600	-	-3.39%
08/05	500	500	496	496	-1%	300	-	-1.2%
08/03	514	514	496	501	-1.38%	4,000	-	-0.2%
07/31	506	511	506	508	0%	800	-	+1.2%
07/30	（IR情報）12:00 (訂正)「その他の関係会社の異動に関するお知らせ」の一部訂正について
07/30	500	508	496	508	+1.4%	1,000	-	+1.4%
07/29	（5%ルール）日星工業（0.78%）
07/29	500	501	500	501	+1.01%	300	-	+0.4%
07/28	498	498	488	496	-0.2%	1,300	-	-0.6%
07/27	497	497	497	497	+1.64%	1,000	-	-0.2%
07/24	495	495	489	489	-0.41%	3,300	-	-1.61%
07/23	497	502	488	491	-1.21%	4,200	-	-1.21%
07/22	503	505	496	497	-0.8%	3,100	-	0%
07/21	501	508	501	501	-0.6%	3,600	-	+1.01%
07/16	504	504	501	504	0%	600	-	+1.82%
07/15	507	507	501	504	-0.79%	2,900	-	+2.02%
07/14	（IR情報）18:00 その他の関係会社の異動に関するお知らせ
07/14	515	515	504	508	+0.4%	2,500	-	+3.04%
07/13	501	506	501	506	+1.61%	600	-	+2.85%
07/10	（5%ルール）石橋健藏（11.85%）シグマ（16.18%）
07/10	500	500	491	498	-0.4%	2,000	-	+1.43%
07/09	503	507	500	500	-1.38%	1,300	-	+1.83%
07/08	507	511	500	507	0%	2,800	-	+3.47%
07/07	515	516	507	507	-1.36%	2,100	-	+3.68%
07/06	520	525	512	514	-0.39%	4,400	-	+5.33%
07/03	523	523	507	516	-2.64%	5,900	-	+6.17%
07/02	507	539	505	530	+9.5%	27,800	-	+9.28%
07/01	489	489	484	484	-1.02%	1,800	-	+0.21%
06/30	489	505	489	489	0%	3,000	-	+1.03%
06/29	495	495	489	489	-1.21%	1,100	-	+1.03%
06/26	498	507	487	495	-1%	3,900	-	+2.27%
06/25	503	503	493	500	+2.67%	3,300	-	+3.52%
06/24	477	492	477	487	+2.1%	4,000	-	+0.83%
06/23	476	480	476	477	-0.63%	400	-	-1.04%
06/22	480	482	480	480	+0.42%	800	-	-0.62%
06/19	480	480	478	478	-0.42%	700	-	-1.04%
06/18	480	486	480	480	-0.21%	1,000	-	-0.83%
06/17	484	484	476	481	-0.62%	5,500	-	-0.82%
06/16	486	486	480	484	+0.83%	1,000	-	-0.62%
06/15	480	480	476	480	+0.21%	4,300	-	-1.64%
06/12	486	486	479	479	0%	900	-	-2.04%
06/11	478	479	478	479	-0.42%	1,500	-	-2.24%
06/10	482	486	480	481	0%	1,100	-	-2.04%
06/09	479	482	478	481	0%	2,200	-	-2.24%
06/08	486	490	481	481	-0.62%	3,600	-	-2.63%
06/05	480	487	478	484	+0.83%	3,100	-	-2.22%
06/04	481	481	478	480	-1.03%	1,300	-	-3.42%
06/03	487	499	484	485	+0.83%	3,000	-	-2.61%
06/02	480	482	480	481	0%	1,600	-	-3.8%
06/01	485	487	479	481	-0.82%	4,100	-	-4.18%
05/29	480	499	480	485	+0.21%	4,900	-	-3.77%
05/28	484	484	484	484	-0.62%	400	-	-4.35%
05/27	495	495	487	487	-0.81%	1,700	-	-4.13%
05/26	493	500	491	491	-0.81%	800	-	-3.54%
05/25	492	503	492	495	+2.06%	3,600	-	-2.94%
05/22	488	490	480	485	+0.21%	5,100	-	-5.09%
05/21	482	498	482	484	+1.26%	1,300	-	-5.65%
05/20	482	483	477	478	-0.83%	3,400	-	-7.18%
05/19	487	495	477	482	-1.63%	5,500	-	-6.77%
05/18	496	496	471	490	-0.41%	11,900	-	-5.59%
05/15	（IR情報）14:00 中期経営計画策定に関するお知らせ
05/15	（IR情報）14:00 業績予想値と決算値との差異に関するお知らせ
05/15	（IR情報）14:00 2026年3月期決算短信〔日本基準〕(連結)
05/15	522	525	468	492	-6.29%	20,400	-	-5.2%
05/14	516	528	516	525	+1.74%	1,100	-	+0.96%
05/13	509	516	509	516	+1.57%	300	-	-0.58%
05/12	508	512	501	508	+0.4%	3,100	-	-2.12%
05/11	506	520	501	506	+0.6%	5,000	-	-2.5%
05/08	509	509	500	503	-1.37%	5,600	-	-3.08%
05/07	519	519	510	510	-0.2%	5,300	-	-2.11%

昭和化学工業（4990）のイベントチャート

2026/05/07～2026/10/02

イベント情報＆株価推移

開示資料

決算

株式

チャート