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
11/11	3,685	3,815	3,670	3,810	+3.11%	72,700	-	-6.91%
11/10	3,640	3,730	3,610	3,695	+4.82%	130,400	-	-10.42%
11/09	3,520	3,600	3,505	3,525	+1.59%	125,600	-	-15.28%
11/06	3,360	3,490	3,335	3,470	-4.67%	199,400	-	-17.52%
11/05	3,740	3,740	3,605	3,640	+0.14%	156,200	-	-14.47%
11/04	3,730	3,770	3,565	3,635	-2.28%	169,200	-	-15.37%
11/02	3,730	3,770	3,685	3,720	-1.98%	133,400	-	-14.29%
10/30	3,885	3,930	3,780	3,795	-2.57%	144,300	-	-13.38%
10/29	3,855	3,925	3,835	3,895	+1.3%	224,900	-	-11.8%
10/28	3,930	3,930	3,835	3,845	-0.77%	143,100	-	-13.58%
10/27	3,970	3,990	3,815	3,875	-1.15%	193,900	-	-13.6%
10/26	3,960	4,030	3,900	3,920	-2.49%	233,200	-	-13.27%
10/23	（IR情報）15:00 2027年3月期第2四半期(中間期)決算短信[日本基準](連結)
10/23	（IR情報）15:00 剰余金の配当(中間配当)に関するお知らせ
10/23	4,070	4,085	3,890	4,020	-2.19%	204,500	-	-11.69%
10/22	4,235	4,245	4,110	4,110	-2.26%	156,000	-	-10.24%
10/21	4,230	4,240	4,150	4,205	+1.08%	235,600	-	-8.61%
10/20	4,330	4,330	4,135	4,160	-4.15%	289,400	-	-9.94%
10/19	4,475	4,505	4,315	4,340	-1.7%	212,600	-	-6.38%
10/16	（IR情報）16:30 2027年3月期第2四半期(中間期)連結決算速報値に関するお知らせ
10/16	（IR情報）16:30 岩井コスモ証券外部委託先への不正アクセスに伴うお客様情報の漏洩について
10/16	4,450	4,475	4,385	4,415	+0.57%	157,400	-	-5.03%
10/15	4,550	4,595	4,270	4,390	-5.08%	294,000	-	-5.81%
10/14	4,695	4,705	4,600	4,625	-2.22%	134,400	-	-1.03%
10/13	4,685	4,755	4,665	4,730	+1.72%	106,300	-	+1.24%
10/09	4,550	4,665	4,520	4,650	+2.2%	167,400	-	-0.3%
10/08	4,605	4,605	4,515	4,550	-1.83%	114,600	-	-2.49%
10/07	4,665	4,730	4,600	4,635	-0.96%	86,200	-	-0.81%
10/06	4,635	4,680	4,595	4,680	+1.85%	112,600	-	+0.02%
10/05	4,605	4,620	4,545	4,595	+0.11%	104,100	-	-1.84%
10/02	4,620	4,655	4,570	4,590	-2.03%	132,400	-	-1.99%
10/01	4,680	4,740	4,600	4,685	-0.32%	81,400	-	+0.06%
09/30	4,665	4,715	4,580	4,700	+1.73%	93,600	-	+0.49%
09/29	4,655	4,675	4,565	4,620	-2.84%	131,400	-	-1.13%
09/28	4,780	4,780	4,715	4,755	+0.21%	112,700	-	+1.82%
09/25	4,675	4,765	4,675	4,745	+1.93%	82,800	-	+1.89%
09/24	4,785	4,785	4,655	4,655	-1.79%	130,300	-	+0.3%
09/18	（IR情報）16:30 2027年3月期中間配当(予定)に関するお知らせ
09/18	（IR情報）16:30 岩井コスモ証券株式会社機構の改革並びに人事異動に関するお知らせ
09/18	4,745	4,765	4,665	4,740	-0.11%	127,000	-	+2.42%
09/17	4,780	4,810	4,715	4,745	+0.11%	94,000	-	+2.79%
09/16	4,710	4,800	4,710	4,740	+0.64%	78,800	-	+2.98%
09/15	4,690	4,750	4,650	4,710	+0.32%	135,000	-	+2.7%
09/14	4,660	4,695	4,625	4,695	+0.54%	73,400	-	+2.74%
09/11	4,580	4,700	4,560	4,670	+0.43%	96,900	-	+2.55%
09/10	4,620	4,660	4,590	4,650	+1.2%	73,900	-	+2.38%
09/09	4,635	4,675	4,595	4,595	-1.39%	101,900	-	+1.48%
09/08	4,690	4,780	4,660	4,660	-1.27%	98,700	-	+3.28%
09/07	4,700	4,730	4,640	4,720	+0.75%	73,900	-	+5.05%
09/04	4,620	4,690	4,600	4,685	+2.07%	132,400	-	+4.76%
09/03	4,600	4,630	4,570	4,590	+0.99%	128,000	-	+3.19%
09/02	4,660	4,665	4,540	4,545	-3.3%	168,500	-	+2.67%
09/01	4,715	4,765	4,665	4,700	-0.32%	147,200	-	+6.58%
08/31	4,730	4,755	4,670	4,715	-1.67%	168,200	-	+7.28%
08/28	4,700	4,820	4,690	4,795	+1.37%	143,900	-	+9.55%
08/27	4,655	4,740	4,625	4,730	+2.16%	156,000	-	+8.54%
08/26	4,600	4,650	4,575	4,630	+1.09%	103,400	-	+6.73%
08/25	4,575	4,605	4,510	4,580	+0.55%	142,300	-	+5.9%
08/24	4,600	4,605	4,545	4,555	-0.98%	115,800	-	+5.68%
08/21	（IR情報）16:30 「第45回全国豊かな海づくり大会」への協賛に関するお知らせ
08/21	4,540	4,650	4,535	4,600	+1.1%	128,000	-	+6.9%
08/20	4,440	4,550	4,420	4,550	+2.94%	103,400	-	+5.91%
08/19	4,310	4,465	4,265	4,420	+1.73%	204,600	-	+3.2%
08/18	4,360	4,415	4,315	4,345	+0.12%	75,500	-	+1.66%
08/17	4,415	4,420	4,340	4,340	-2.03%	79,300	-	+1.69%
08/14	4,405	4,485	4,405	4,430	+0.34%	86,600	-	+3.97%
08/13	4,350	4,430	4,350	4,415	+1.85%	91,900	-	+3.83%
08/12	4,345	4,350	4,280	4,335	+0.81%	85,600	-	+2.24%
08/10	（IR情報）16:30 岩井コスモ証券『熱中症ゼロ』を目指して会社による猛暑対策支援を実施
08/10	4,320	4,325	4,260	4,300	-0.12%	84,700	-	+1.61%
08/07	4,395	4,395	4,280	4,305	-1.26%	83,400	-	+2.01%
08/06	（IR情報）15:00 2027年3月期第1四半期決算短信〔日本基準〕(連結)(公認会計士等による期中レビューの完了)
08/06	4,290	4,410	4,280	4,360	+1.63%	132,000	-	+3.61%
08/05	4,250	4,310	4,245	4,290	+1.9%	93,500	-	+2.26%
08/04	4,175	4,230	4,160	4,210	+0.48%	114,100	-	+0.65%
08/03	4,220	4,225	4,090	4,190	-0.12%	119,700	-	+0.36%
07/31	4,125	4,225	4,050	4,195	+2.94%	153,900	-	+0.72%
07/30	4,010	4,110	3,950	4,075	+0.49%	171,200	-	-1.97%
07/29	（IR情報）15:00 国連WFP イラン周辺国緊急食料支援への寄付に関するお知らせ
07/29	4,195	4,200	4,010	4,055	-1.93%	201,100	-	-2.34%
07/28	4,260	4,280	4,125	4,135	-4.28%	172,800	-	-0.31%
07/27	4,260	4,320	4,185	4,320	+1.05%	153,100	-	+4.25%
07/24	（IR情報）16:30 2027年3月期第1四半期決算短信[日本基準](連結)
07/24	4,250	4,305	4,215	4,275	-0.7%	102,300	-	+3.49%
07/23	4,240	4,345	4,230	4,305	+1.53%	94,600	-	+4.41%
07/22	4,350	4,350	4,225	4,240	-1.51%	101,200	-	+3.14%
07/21	4,275	4,330	4,195	4,305	+2.38%	156,700	-	+4.9%
07/17	（IR情報）16:30 2027年3月期第1四半期連結決算速報値に関するお知らせ
07/17	4,300	4,365	4,105	4,205	-3.78%	181,600	-	+2.79%
07/16	4,400	4,405	4,335	4,370	-1.24%	137,200	-	+7.08%
07/15	4,275	4,435	4,275	4,425	+4.49%	130,300	-	+8.99%
07/14	4,195	4,260	4,180	4,235	+0.83%	72,800	-	+4.88%
07/13	4,220	4,280	4,200	4,200	+0.36%	87,900	-	+4.43%
07/10	4,210	4,260	4,170	4,185	+0.6%	80,500	-	+4.52%
07/09	4,155	4,190	4,140	4,160	-1.07%	60,900	-	+4.26%
07/08	4,115	4,250	4,110	4,205	+1.94%	138,800	-	+5.76%
07/07	4,145	4,210	4,105	4,125	0%	87,300	-	+4.09%
07/06	4,035	4,130	4,035	4,125	+2.74%	111,900	-	+4.43%
07/03	4,010	4,020	3,950	4,015	+0.25%	91,200	-	+1.98%
07/02	4,050	4,070	3,985	4,005	-0.74%	81,300	-	+1.88%
07/01	4,000	4,070	4,000	4,035	+1.25%	73,300	-	+2.83%
06/30	3,980	4,030	3,965	3,985	-0.25%	88,200	-	+1.74%
06/29	3,980	3,995	3,935	3,995	+0.88%	89,900	-	+2.12%
06/26	（IR情報）16:30 岩井コスモ証券株式会社人事異動に関するお知らせ
06/26	4,015	4,020	3,935	3,960	-0.88%	68,600	-	+1.38%
06/25	3,965	4,005	3,910	3,995	+1.65%	72,400	-	+2.54%
06/24	3,960	3,995	3,885	3,930	-0.76%	75,400	-	+1.18%
06/23	4,030	4,045	3,955	3,960	-1.74%	61,600	-	+2.27%
06/22	4,000	4,045	3,960	4,030	+0.75%	65,300	-	+4.43%
06/19	4,040	4,060	3,995	4,000	-1.84%	77,800	-	+4.11%
06/18	4,040	4,095	4,030	4,075	+1.62%	77,900	-	+6.45%
06/17	4,080	4,100	4,010	4,010	-1.11%	90,500	-	+5.19%
06/16	3,995	4,105	3,970	4,055	+1.5%	110,200	-	+6.71%

岩井コスモ HD（8707）のイベントチャート

2026/06/16～2026/11/11

イベント情報＆株価推移

開示資料

決算

株式

チャート