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
09/09	1,605	1,608	1,605	1,608	-0.06%	800	174億1946万	-0.5%
09/08	1,611	1,614	1,609	1,609	-0.12%	1,700	174億3029万	-0.49%
09/07	1,624	1,624	1,611	1,611	+0.12%	3,100	174億5196万	-0.43%
09/04	1,605	1,610	1,605	1,609	+0.25%	900	174億3029万	-0.62%
09/03	1,617	1,617	1,602	1,605	-0.74%	1,700	173億8696万	-0.93%
09/02	1,615	1,618	1,600	1,617	+0.12%	4,400	175億1696万	-0.31%
09/01	1,609	1,615	1,609	1,615	+0.81%	1,800	174億9529万	-0.49%
08/31	1,600	1,606	1,600	1,602	0%	3,900	173億5446万	-1.35%
08/28	1,612	1,620	1,602	1,602	-0.56%	3,500	173億5446万	-1.48%
08/27	1,611	1,613	1,600	1,611	0%	2,700	174億5196万	-0.98%
08/26	1,595	1,611	1,595	1,611	+0.62%	2,300	174億5196万	-1.04%
08/25	1,603	1,603	1,581	1,601	-0.25%	10,800	173億4363万	-1.78%
08/24	1,604	1,606	1,603	1,605	-0.25%	2,100	173億8696万	-1.53%
08/21	1,615	1,617	1,600	1,609	-1.05%	5,400	174億3029万	-1.35%
08/20	1,626	1,627	1,611	1,626	+0.49%	700	176億1445万	-0.25%
08/19	1,605	1,618	1,599	1,618	+0.43%	6,300	175億2779万	-0.68%
08/18	1,605	1,615	1,605	1,611	-0.25%	1,900	174億5196万	-0.98%
08/17	1,634	1,634	1,601	1,615	+0.87%	4,700	174億9529万	-0.74%
08/14	1,634	1,635	1,598	1,601	-1.17%	8,700	173億4363万	-1.54%
08/13	1,632	1,635	1,620	1,620	-0.25%	3,800	175億4946万	-0.43%
08/12	（IR情報）15:40 令和9年3月期第1四半期決算短信〔日本基準〕(連結)
08/12	1,629	1,641	1,621	1,624	-1.1%	7,300	175億9279万	-0.12%
08/10	1,642	1,647	1,635	1,642	+0.31%	1,400	177億8778万	+1.05%
08/07	1,640	1,640	1,637	1,637	-0.18%	1,300	177億3362万	+0.86%
08/06	1,644	1,644	1,638	1,640	-0.24%	2,000	177億6612万	+1.23%
08/05	1,648	1,648	1,632	1,644	+0.98%	1,800	178億945万	+1.61%
08/04	1,644	1,644	1,628	1,628	-0.37%	2,100	176億3612万	+0.87%
08/03	1,650	1,650	1,629	1,634	-0.79%	2,500	177億112万	+1.36%
07/31	1,626	1,647	1,626	1,647	+0.73%	800	178億4195万	+2.3%
07/30	1,647	1,648	1,635	1,635	-0.55%	2,100	177億1195万	+1.62%
07/29	1,648	1,648	1,636	1,644	-0.42%	1,100	178億945万	+2.18%
07/28	1,650	1,651	1,621	1,651	+0.55%	3,000	178億8528万	+2.67%
07/27	1,640	1,646	1,636	1,642	+0.12%	3,300	177億8778万	+2.11%
07/24	1,651	1,652	1,640	1,640	-0.18%	1,100	177億6612万	+1.99%
07/23	1,650	1,652	1,636	1,643	+0.24%	1,400	177億9861万	+2.18%
07/22	1,648	1,650	1,630	1,639	-0.55%	2,700	177億5528万	+2.05%
07/21	1,627	1,648	1,615	1,648	+2.36%	5,200	178億5278万	+2.55%
07/17	1,614	1,625	1,605	1,610	-0.31%	3,200	174億4113万	+0.12%
07/16	1,623	1,623	1,597	1,615	+1.19%	3,700	174億9529万	+0.31%
07/15	1,585	1,611	1,584	1,596	+0.06%	6,400	172億8946万	-0.99%
07/14	1,582	1,606	1,578	1,595	+0.82%	3,100	172億7863万	-1.24%
07/13	1,579	1,604	1,579	1,582	-1.43%	3,900	171億3780万	-2.22%
07/10	（自社株買い）取締役会(令和8年6月16日)での決議状況(取得期間令和8年6月17日～令和8年6月17日)
07/10	1,593	1,605	1,593	1,605	+0.82%	1,500	173億8696万	-0.99%
07/09	1,610	1,615	1,592	1,592	-1.12%	2,000	172億4613万	-1.91%
07/08	1,601	1,610	1,590	1,610	+0.56%	1,800	174億4113万	-0.92%
07/07	1,618	1,618	1,601	1,601	-0.44%	2,900	173億4363万	-1.54%
07/06	1,592	1,611	1,576	1,608	+0.94%	4,800	174億1946万	-1.17%
07/03	1,570	1,593	1,570	1,593	+1.46%	900	172億5696万	-2.09%
07/02	1,581	1,583	1,564	1,570	+0.19%	3,400	170億781万	-3.56%
07/01	1,595	1,595	1,561	1,567	0%	3,600	169億7531万	-3.81%
06/30	1,575	1,585	1,567	1,567	-0.51%	4,100	169億7531万	-3.87%
06/29	1,589	1,590	1,575	1,575	0%	4,700	170億6197万	-3.49%
06/26	1,614	1,614	1,575	1,575	-2.17%	8,500	170億6197万	-3.61%
06/25	1,613	1,624	1,610	1,610	-1.59%	4,700	174億4113万	-1.65%
06/24	1,641	1,648	1,619	1,636	+0.06%	1,100	177億2278万	-0.06%
06/23	1,626	1,635	1,625	1,635	-0.55%	800	177億1195万	-0.12%
06/22	1,613	1,647	1,613	1,644	0%	1,800	178億945万	+0.37%
06/19	1,642	1,653	1,630	1,644	+0.86%	2,500	178億945万	+0.37%
06/18	1,604	1,638	1,604	1,630	+1.31%	1,300	176億5779万	-0.49%
06/17	（IR情報）10:00 自己株式立会外買付取引(ToSTNeT-3)による自己株式の取得結果及び取得終了に関するお知らせ
06/17	1,653	1,654	1,600	1,609	-2.66%	8,100	174億3029万	-1.83%
06/16	（IR情報）16:30 自己株式の取得及び自己株式立会外買付取引(ToSTNeT-3)による自己株式の買付けに関するお知らせ
06/16	1,671	1,671	1,646	1,653	-1.08%	2,200	179億694万	+0.73%
06/15	1,659	1,672	1,652	1,671	+0.66%	3,800	181億194万	+1.83%
06/12	1,681	1,687	1,651	1,660	-0.42%	7,500	179億8278万	+1.28%
06/11	1,665	1,684	1,660	1,667	-0.42%	5,300	180億5861万	+1.77%
06/10	1,675	1,685	1,660	1,674	0%	6,500	181億3444万	+2.32%
06/09	1,663	1,678	1,647	1,674	+0.97%	5,000	181億3444万	+2.51%
06/08	1,640	1,658	1,631	1,658	+0.48%	4,000	179億6111万	+1.72%
06/05	1,643	1,650	1,639	1,650	+0.3%	3,600	178億7445万	+1.48%
06/04	1,644	1,645	1,625	1,645	+0.18%	6,800	178億2028万	+1.36%
06/03	1,629	1,642	1,621	1,642	+2.11%	6,600	177億8778万	+1.3%
06/02	1,613	1,626	1,608	1,608	-0.37%	3,600	174億1946万	-0.62%
06/01	1,610	1,627	1,610	1,614	+0.12%	2,800	174億8446万	-0.19%
05/29	1,609	1,625	1,608	1,612	+0.5%	1,200	174億6279万	-0.25%
05/28	1,610	1,640	1,602	1,604	+0.19%	2,000	173億7613万	-0.74%
05/27	1,616	1,616	1,600	1,601	-0.93%	3,400	173億4363万	-0.93%
05/26	1,617	1,640	1,616	1,616	-0.06%	2,200	175億612万	-0.06%
05/25	1,645	1,653	1,617	1,617	-1.7%	3,000	175億1696万	-0.06%
05/22	1,624	1,645	1,624	1,645	+1.86%	2,500	178億2028万	+1.61%
05/21	1,632	1,639	1,615	1,615	-1.82%	3,000	174億9529万	-0.25%
05/20	1,653	1,653	1,637	1,645	-0.54%	1,700	178億2028万	+1.42%
05/19	1,654	1,664	1,654	1,654	+0.12%	4,300	179億1778万	+1.91%
05/18	1,648	1,658	1,648	1,652	+0.36%	2,900	178億9611万	+1.85%
05/15	1,663	1,664	1,644	1,646	-0.3%	4,000	178億3111万	+1.54%
05/14	（IR情報）15:30 定款一部変更に関するお知らせ
05/14	（IR情報）15:30 剰余金の配当に関するお知らせ
05/14	（IR情報）15:30 令和8年3月期決算短信〔日本基準〕(連結)
05/14	1,643	1,664	1,637	1,651	-0.06%	7,100	178億8528万	+1.85%
05/13	1,645	1,680	1,645	1,652	+0.43%	3,100	178億9611万	+1.98%
05/12	1,637	1,664	1,637	1,645	+0.86%	10,600	178億2028万	+1.67%
05/11	1,630	1,647	1,621	1,631	+0.06%	3,200	176億6862万	+0.8%
05/08	1,630	1,630	1,588	1,630	+0.56%	4,500	176億5779万	+0.8%
05/07	1,592	1,629	1,590	1,621	+2.08%	3,900	175億6029万	+0.12%
05/01	1,590	1,601	1,568	1,588	-0.63%	2,500	172億280万	-2.22%
04/30	1,571	1,614	1,560	1,598	+1.59%	8,700	173億1113万	-1.9%
04/28	1,566	1,576	1,560	1,573	-0.38%	3,300	170億4030万	-3.79%
04/27	1,582	1,582	1,562	1,579	+0.19%	2,700	171億530万	-3.78%
04/24	1,580	1,580	1,560	1,576	+0.19%	2,800	170億7280万	-4.37%
04/23	1,583	1,583	1,560	1,573	-0.88%	6,600	170億4030万	-4.9%
04/22	1,594	1,594	1,587	1,587	-0.5%	2,500	171億9197万	-4.46%
04/21	1,603	1,606	1,592	1,595	-0.68%	6,400	172億7863万	-4.32%
04/20	1,608	1,609	1,601	1,606	-0.43%	3,200	173億9779万	-4%
04/17	1,624	1,629	1,608	1,613	-0.62%	5,300	174億7362万	-3.87%
04/16	1,634	1,634	1,623	1,623	-0.98%	2,900	175億8195万	-3.57%
04/15	1,652	1,652	1,622	1,639	+0.24%	5,400	177億5528万	-2.96%
04/14	（IR情報）15:30 監査等委員会設置会社への移行に伴う役員人事に関するお知らせ

オーシャンシステム（3096）のイベントチャート

2026/04/15～2026/09/09

イベント情報＆株価推移

開示資料

決算

株式

チャート