日付	始値	高値	安値	終値	前日比	出来高	時価総額	25日乖離	PER	PBR
2026
10/01	8,795	8,848	8,669	8,757	-1.68%	876,000	-	-6.16%	-	-
09/30	8,790	8,960	8,735	8,907	+0.94%	642,000	-	-4.99%	-	-
09/29	8,888	8,948	8,765	8,824	-1.68%	719,700	-	-6.16%	-	-
09/28	9,199	9,199	8,970	8,975	-0.83%	467,100	-	-5.04%	-	-
09/25	9,180	9,208	9,001	9,050	-0.91%	543,700	-	-4.59%	-	-
09/24	9,311	9,404	9,094	9,133	-1.32%	644,100	-	-4.39%	-	-
09/18	9,266	9,445	9,182	9,255	+0.54%	827,200	-	-3.67%	-	-
09/17	9,230	9,360	9,137	9,205	-0.29%	529,200	-	-4.69%	-	-
09/16	9,148	9,286	9,004	9,232	+1.72%	529,100	-	-4.81%	-	-
09/15	8,902	9,138	8,890	9,076	-0.15%	504,400	-	-6.67%	-	-
09/14	8,845	9,115	8,695	9,090	+1.06%	445,100	-	-6.75%	-	-
09/11	9,091	9,220	8,976	8,995	-4.15%	838,900	-	-8.19%	-	-
09/10	9,690	9,774	9,334	9,384	-1.98%	517,500	-	-4.72%	-	-
09/09	9,595	9,694	9,513	9,574	+1.3%	475,200	-	-3.12%	-	-
09/08	9,722	9,850	9,451	9,451	-2.77%	635,600	-	-4.57%	-	-
09/07	9,451	9,754	9,431	9,720	+3.57%	755,200	-	-2.09%	-	-
09/04	9,300	9,444	9,182	9,385	+0.57%	643,000	-	-5.69%	-	-
09/03	9,351	9,571	9,302	9,332	+1.21%	691,400	-	-6.5%	-	-
09/02	9,555	9,584	9,220	9,220	-6.3%	1,102,400	-	-7.85%	-	-
09/01	9,750	9,850	9,666	9,840	+1.37%	506,000	-	-2.08%	-	-
08/31	9,720	9,783	9,582	9,707	-1.38%	563,900	-	-3.62%	-	-
08/28	9,825	9,975	9,760	9,843	+0.88%	481,300	-	-2.57%	-	-
08/27	9,818	9,850	9,633	9,757	+0.46%	428,800	-	-3.57%	-	-
08/26	9,999	10,075	9,712	9,712	-1.57%	518,100	-	-4.12%	-	-
08/25	9,850	9,950	9,761	9,867	+0.17%	654,800	-	-2.76%	-	-
08/24	9,610	9,949	9,480	9,850	+2.6%	741,500	-	-2.78%	-	-
08/21	9,852	9,892	9,560	9,600	-4.29%	900,300	-	-5.26%	-	-
08/20	9,967	10,290	9,900	10,030	+2.17%	679,300	-	-1.24%	-	-
08/19	10,415	10,415	9,753	9,817	-8.38%	1,124,800	-	-3.27%	-	-
08/18	10,730	11,185	10,630	10,715	+1.71%	881,600	-	+5.57%	-	-
08/17	10,750	10,920	10,255	10,535	+0.24%	547,200	-	+4.14%	-	-
08/14	10,215	10,540	10,065	10,510	+2.89%	604,200	-	+4.17%	-	-
08/13	9,958	10,225	9,859	10,215	+3.2%	516,600	-	+1.54%	-	-
08/12	10,000	10,090	9,771	9,898	+2.53%	633,500	-	-1.58%	-	-
08/10	10,205	10,440	9,436	9,654	-6.45%	1,477,500	-	-4.14%	-	-
08/07	10,300	10,630	9,855	10,320	+0.34%	1,868,400	-	+2.59%	-	-
08/06	10,285	10,400	10,035	10,285	+0.59%	339,800	-	+2.77%	-	-
08/05	9,998	10,315	9,969	10,225	+1.24%	435,300	-	+2.68%	-	-
08/04	10,035	10,130	9,876	10,100	+0.65%	273,000	-	+1.81%	-	-
08/03	10,325	10,425	9,905	10,035	-2.81%	324,800	-	+1.47%	-	-
07/31	10,170	10,500	10,115	10,325	+1.87%	408,000	-	+4.54%	-	-
07/30	9,900	10,155	9,760	10,135	+2.06%	414,000	-	+2.89%	-	-
07/29	10,025	10,100	9,710	9,930	-3.83%	668,700	-	+0.8%	-	-
07/28	10,660	10,690	10,185	10,325	-0.72%	580,800	-	+4.79%	-	-
07/27	10,610	10,695	10,355	10,400	-0.95%	724,300	-	+5.76%	-	-
07/24	10,250	10,500	10,185	10,500	+2.84%	738,800	-	+7.09%	-	-
07/23	10,170	10,275	10,045	10,210	+1.9%	345,200	-	+4.38%	-	-
07/22	10,185	10,340	9,969	10,020	-1.57%	541,300	-	+2.54%	-	-
07/21	9,680	10,270	9,625	10,180	+7.25%	491,800	-	+4.24%	-	-
07/17	9,787	9,787	9,351	9,492	-3.86%	593,100	-	-2.71%	-	-
07/16	10,000	10,075	9,870	9,873	-2.82%	336,100	-	+1.15%	-	-
07/15	9,999	10,200	9,964	10,160	+3.06%	429,700	-	+4.23%	-	-
07/14	9,952	9,964	9,722	9,858	+0.03%	349,000	-	+1.37%	-	-
07/13	9,871	10,125	9,806	9,855	-0.16%	475,800	-	+1.22%	-	-
07/10	9,797	9,989	9,753	9,871	+0.13%	375,300	-	+1.18%	-	-
07/09	10,060	10,085	9,801	9,858	+0.87%	448,000	-	+0.82%	-	-
07/08	10,550	10,600	9,773	9,773	-3.71%	624,900	-	-0.05%	-	-
07/07	10,420	10,700	10,095	10,150	-0.88%	907,600	-	+3.6%	-	-
07/06	9,654	10,330	9,654	10,240	+9.47%	1,089,800	-	+4.54%	-	-
07/03	9,003	9,370	8,960	9,354	+3.28%	545,500	-	-4.34%	-	-
07/02	9,148	9,234	9,050	9,057	+0.4%	513,800	-	-7.64%	-	-
07/01	9,325	9,360	9,021	9,021	-2.84%	474,700	-	-8.53%	-	-
06/30	9,440	9,487	9,113	9,285	-0.71%	697,500	-	-6.42%	-	-
06/29	9,748	9,843	9,267	9,351	-3.58%	566,200	-	-6.41%	-	-
06/26	9,802	9,879	9,518	9,698	+0.48%	490,600	-	-3.5%	-	-
06/25	10,020	10,040	9,640	9,652	-5%	806,300	-	-4.45%	-	-
06/24	9,883	10,235	9,883	10,160	+1.89%	684,100	-	+0.1%	-	-
06/23	9,880	9,985	9,721	9,972	+1.11%	650,000	-	-2.03%	-	-
06/22	9,769	9,949	9,660	9,863	+2.01%	545,500	-	-3.63%	-	-
06/19	9,819	9,856	9,553	9,669	-2.51%	785,800	-	-6.1%	-	-
06/18	9,922	10,130	9,814	9,918	-0.42%	626,300	-	-4.63%	-	-
06/17	9,750	10,235	9,663	9,960	+0.77%	734,700	-	-4.9%	-	-
06/16	9,934	10,085	9,829	9,884	-0.32%	666,900	-	-6.42%	-	-
06/15	9,850	10,160	9,764	9,916	+2.97%	662,100	-	-7.22%	-	-
06/12	9,535	9,716	9,462	9,630	+1%	778,700	-	-10.87%	-	-
06/11	9,456	9,657	9,325	9,535	-0.74%	884,600	-	-12.64%	-	-
06/10	10,020	10,080	9,523	9,606	-5.03%	935,400	-	-12.91%	-	-
06/09	10,355	10,550	10,110	10,115	-2.36%	514,500	-	-9.38%	-	-
06/08	9,933	10,360	9,918	10,360	-0.72%	763,200	-	-8.11%	-	-
06/05	9,900	10,620	9,900	10,435	+6.01%	792,200	-	-8.24%	-	-
06/04	10,120	10,165	9,735	9,843	-3.88%	976,000	-	-14.13%	-	-
06/03	10,110	10,270	9,808	10,240	+1.29%	814,600	-	-11.69%	-	-
06/02	9,850	10,155	9,731	10,110	+2.9%	935,900	-	-13.74%	-	-
06/01	10,040	10,120	9,626	9,825	-2.14%	1,372,600	-	-16.96%	-	-
05/29	10,350	10,400	10,040	10,040	-4.11%	784,600	-	-16.07%	-	-
05/28	10,455	10,525	10,225	10,470	-0.33%	746,400	-	-13.31%	-	-
05/27	10,920	11,040	10,445	10,505	-4.63%	774,700	-	-13.96%	-	-
05/26	10,830	11,225	10,650	11,015	+1.71%	655,800	-	-10.79%	-	-
05/25	11,200	11,300	10,615	10,830	-1.5%	780,100	-	-13.13%	-	-
05/22	10,885	11,230	10,770	10,995	+1.2%	577,200	-	-12.89%	-	-
05/21	10,715	10,965	10,680	10,865	-0.18%	712,100	-	-14.8%	-	-
05/20	11,205	11,290	10,760	10,885	-4.22%	965,900	-	-15.46%	-	-
05/19	11,370	11,790	11,335	11,365	-0.44%	707,900	-	-12.72%	-	-
05/18	12,250	12,270	11,415	11,415	-6.7%	903,400	-	-13.2%	-	-
05/15	11,940	12,340	11,820	12,235	+4.08%	1,019,100	-	-7.94%	-	-
05/14	11,835	12,115	11,545	11,755	-3.37%	1,573,900	-	-12.4%	-	-
05/13	12,900	13,350	11,955	12,165	-6.82%	3,497,500	-	-10.27%	-	-
05/12	12,850	13,265	12,850	13,055	+1.99%	939,800	-	-4.48%	-	-
05/11	12,405	12,970	12,280	12,800	+3.06%	952,600	-	-6.99%	-	-
05/08	12,385	12,480	12,050	12,420	+0.12%	1,018,600	-	-10.24%	-	-

年初来

年度	株価		出来高	PER		PBR		時価総額		期末
年度	高値	安値	大商い	高値	安値	高値	安値	高値	安値	PER
2009年 12月期	2,050 9/7	985 3/4 3/3	843,300 9/1	31.78	15.27	2.01	0.96	-	-	27.6倍 12/30
2010年 12月期	2,029 1/15	1,057 9/1	597,300 11/12	34.43	17.94	1.76	0.91	759億83万	395億4025万	24.45倍 12/30
2011年 12月期	1,579 1/17	1,014 3/15	430,100 3/15	23.89	15.34	1.55	0.99	732億7823万	470億5771万	20.08倍 12/30
2012年 12月期	1,913 12/20 12/19	1,262 6/4	2,330,800 6/29	17.31	11.42	1.64	1.08	887億7850万	585億6689万	16.91倍 12/28
2013年 12月期	3,970 5/20	1,897 1/7	16,741,600 3/12	37.43	17.89	2.6	1.24	1842億3976万	880億3597万	28.47倍 12/30
2014年 12月期	3,045 1/6	1,807 12/17	2,720,200 4/23	29.95	17.77	1.77	1.05	1413億1236万	1019億2925万	20.05倍 12/30
2015年 12月期	2,108 2/6	1,412 9/29	2,016,400 2/12	20.42	13.68	1.17	0.78	1189億806万	796億4809万	16.34倍 12/30
2016年 12月期	1,962 12/21	1,254 1/20	1,221,400 2/10	5.27	3.37	0.9	0.57	1106億7249万	707億3563万	5.01倍 12/30
2017年 12月期	2,962 12/22	1,820 2/7	2,825,500 2/9	8.59	5.28	1.22	0.75	1670億8049万	1026億6256万	8.44倍 12/29
2018年 12月期	3,785 10/2	2,002 12/25	1,068,000 4/11	9.75	5.16	1.4	0.74	2135億428万	1129億2881万	5.85倍 12/28
2019年 12月期	3,610 4/19	2,018 1/4	870,500 2/6	赤字	赤字	1.79	1	2036億3288万	1138億3134万	赤字 12/30
2020年 12月期	2,805 1/7	1,021 3/23	1,520,700 2/7	赤字	赤字	2.15	0.78	1582億2444万	575億9256万	赤字 12/30
2021年 12月期	2,399 3/19	1,345 12/22	1,068,900 2/10	赤字	赤字	2.21	1.24	1353億2279万	758億6876万	赤字 12/30
2022年 12月期	1,833 11/2	1,043 3/8	1,864,100 3/14	20.83	11.85	0.96	0.55	1033億9586万	588億3354万	15.48倍 12/30
2023年 12月期	2,445 12/28	1,275 3/16	1,643,400 12/25	11.15	5.81	1.19	0.62	1671億425万	719億2020万	10.57倍 12/29
2024年 12月期	3,640 11/12 11/7	1,918 8/5	9,767,100 5/15	7.13	3.76	1.33	0.7	2487億7689万	1310億8628万	6.55倍 12/30
2025年 12月期	16,720 11/26	3,100 2/7	8,666,600 11/26	20.24	3.75	5.02	0.93	1兆1427億	2118億7043万	14.4倍 12/30
最新	8,757 2026/10/1		876,000	-		-		5984億9979万		-

三井海洋開発（6269）のPER（株価収益率）の推移

2026/05/08～2026/10/01

株価＆PERの推移

年初来

開示資料

決算

株式

チャート