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
09/30	2,851	2,963	2,851	2,915	+3.63%	25,900	-	+1.11%
09/29	2,815	2,862	2,781	2,813	-1.71%	79,600	-	-2.53%
09/28	2,943	2,949	2,835	2,862	+2.18%	215,500	-	-1.17%
09/28	（空売り報告）Barclays Capital Securities Ltd 85,223株（0.56%）-0.05%
09/25	2,810	2,813	2,749	2,801	+0.14%	65,500	-	-3.51%
09/24	2,835	2,841	2,768	2,797	-0.18%	103,100	-	-4.15%
09/18	2,820	2,842	2,772	2,802	-0.11%	51,100	-	-4.63%
09/17	2,830	2,880	2,775	2,805	+0.11%	37,500	-	-5.14%
09/16	2,837	2,859	2,771	2,802	-0.25%	33,700	-	-5.91%
09/16	（空売り報告）Barclays Capital Securities Ltd 92,623株（0.61%）+0.02%
09/15	2,756	2,829	2,736	2,809	+1.26%	19,200	-	-6.15%
09/15	（空売り報告）Barclays Capital Securities Ltd 90,123株（0.59%）-0.09%
09/14	2,754	2,807	2,719	2,774	-0.61%	34,400	-	-7.84%
09/11	2,760	2,822	2,720	2,791	-2.41%	41,000	-	-7.74%
09/10	2,853	2,874	2,828	2,860	-0.52%	19,300	-	-5.92%
09/09	2,872	2,916	2,853	2,875	-0.07%	24,400	-	-5.86%
09/08	2,906	2,935	2,876	2,877	-2.28%	23,700	-	-5.8%
09/07	2,937	2,993	2,902	2,944	+0.58%	17,800	-	-3.6%
09/04	（IR情報）14:30 自己株式の取得状況に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得)
09/04	（自社株買い）取締役会(2026年7月31日)での決議状況(取得期間2026年8月3日～2027年3月31日)
09/04	2,946	2,970	2,913	2,927	-0.64%	28,200	-	-4.1%
09/04	（空売り報告）Barclays Capital Securities Ltd 104,523株（0.68%）-0.02%
09/03	2,958	3,000	2,937	2,946	+1.31%	24,000	-	-3.25%
09/03	（空売り報告）Barclays Capital Securities Ltd 106,223株（0.7%）+0.02%
09/02	2,872	2,940	2,872	2,908	-2.15%	24,700	-	-4.18%
09/01	2,954	3,015	2,929	2,972	-0.77%	37,100	-	-1.95%
09/01	（空売り報告）Barclays Capital Securities Ltd 103,823株（0.68%）-0.1%
08/31	2,853	3,040	2,853	2,995	+3.42%	24,600	-	-1.12%
08/28	2,939	2,997	2,893	2,896	-2.56%	23,900	-	-4.3%
08/27	2,984	3,020	2,938	2,972	+0.13%	28,000	-	-1.88%
08/27	（空売り報告）Barclays Capital Securities Ltd 119,223株（0.78%）-0.09%
08/26	2,988	3,020	2,944	2,968	-0.07%	21,900	-	-2.08%
08/25	3,000	3,000	2,929	2,970	-1%	25,500	-	-2.01%
08/25	（空売り報告）Barclays Capital Securities Ltd 132,623株（0.87%）-0.11%
08/24	3,040	3,040	2,974	3,000	+0.17%	21,200	-	-0.96%
08/21	3,005	3,015	2,953	2,995	-1.64%	26,800	-	-1.16%
08/20	3,055	3,095	2,998	3,045	-0.16%	28,800	-	+0.33%
08/19	3,080	3,140	3,005	3,050	-3.48%	60,700	-	+0.53%
08/19	（空売り報告）Barclays Capital Securities Ltd 149,723株（0.98%）-0.11%
08/18	3,265	3,310	3,140	3,160	-4.1%	26,000	-	+4.26%
08/18	（空売り報告）Barclays Capital Securities Ltd 166,323株（1.09%）-0.04%
08/17	3,290	3,380	3,255	3,295	+0.15%	29,700	-	+8.75%
08/14	3,320	3,345	3,230	3,290	-0.9%	37,800	-	+8.94%
08/14	（空売り報告）Barclays Capital Securities Ltd 172,223株（1.13%）-0.08%
08/13	3,235	3,320	3,195	3,320	+4.4%	40,600	-	+10.3%
08/12	3,190	3,255	3,135	3,180	-1.85%	57,300	-	+5.89%
08/10	3,145	3,265	3,145	3,240	+3.02%	24,700	-	+7.71%
08/07	3,180	3,180	3,010	3,145	-1.1%	37,700	-	+4.35%
08/06	3,145	3,290	3,115	3,180	-0.63%	47,200	-	+5.26%
08/05	（自社株買い）取締役会(2026年7月31日)での決議状況(取得期間2026年8月3日～2027年3月31日)
08/05	2,950	3,235	2,950	3,200	+11.15%	85,900	-	+5.58%
08/04	2,877	2,908	2,815	2,879	+0.07%	54,400	-	-5.2%
08/03	2,920	2,998	2,833	2,877	-0.83%	64,700	-	-5.89%
07/31	（IR情報）14:30 2027年3月期第1四半期決算短信〔日本基準〕(連結)
07/31	（IR情報）14:30 自己株式取得に係る事項の決定に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得)
07/31	2,950	3,160	2,895	2,901	+5.49%	140,600	-	-5.72%
07/31	（空売り報告）Barclays Capital Securities Ltd 184,523株（1.21%）+0.02%
07/30	2,728	2,835	2,704	2,750	+2.69%	64,800	-	-11.32%
07/29	2,805	2,854	2,598	2,678	-4.53%	57,200	-	-14.44%
07/28	2,885	2,905	2,784	2,805	-4.33%	37,500	-	-11.35%
07/27	2,931	2,953	2,867	2,932	+0.62%	34,600	-	-8.49%
07/27	（空売り報告）Barclays Capital Securities Ltd 181,823株（1.19%）-0.09%
07/24	（IR情報）14:30 譲渡制限付株式報酬としての自己株式処分の払込完了に関するお知らせ
07/24	2,949	2,993	2,863	2,914	-2.12%	21,700	-	-9.95%
07/23	3,060	3,070	2,972	2,977	-1.26%	13,900	-	-8.88%
07/22	2,971	3,070	2,970	3,015	+1.58%	27,400	-	-8.47%
07/21	2,945	3,005	2,897	2,968	+1.33%	35,200	-	-10.44%
07/17	2,993	3,005	2,828	2,929	-3.17%	34,200	-	-12.33%
07/17	（空売り報告）Barclays Capital Securities Ltd 194,623株（1.28%）-0.02%
07/16	3,115	3,115	2,995	3,025	-3.35%	17,000	-	-9.73%
07/16	（空売り報告）Barclays Capital Securities Ltd 197,223株（1.3%）+0.1%
07/15	3,070	3,150	3,025	3,130	+4.33%	18,600	-	-6.51%
07/15	（空売り報告）Barclays Capital Securities Ltd 182,423株（1.2%）+0.01%
07/14	2,993	3,035	2,933	3,000	+0.23%	19,000	-	-10.29%
07/13	3,150	3,190	2,950	2,993	-3.92%	23,300	-	-10.5%
07/13	（空売り報告）Barclays Capital Securities Ltd 181,223株（1.19%）-0.01%
07/10	3,115	3,225	3,110	3,115	+2.3%	25,100	-	-6.6%
07/10	（空売り報告）Barclays Capital Securities Ltd 182,223株（1.2%）+0.02%
07/09	3,100	3,105	3,030	3,045	0%	20,800	-	-8.37%
07/08	3,155	3,190	3,045	3,045	-3.03%	28,200	-	-7.98%
07/07	3,350	3,350	3,125	3,140	-5.42%	32,800	-	-4.68%
07/06	3,400	3,430	3,280	3,320	-2.06%	27,600	-	+1.37%
07/03	3,320	3,405	3,265	3,390	+2.11%	27,600	-	+4.28%
07/02	3,475	3,475	3,295	3,320	-3.21%	28,400	-	+3.01%
07/01	3,405	3,460	3,355	3,430	+2.69%	22,600	-	+7.39%
06/30	3,450	3,450	3,265	3,340	-1.18%	30,800	-	+5.66%
06/29	3,450	3,450	3,245	3,380	-0.29%	54,900	-	+7.78%
06/26	3,460	3,480	3,300	3,390	-3%	54,700	-	+9.14%
06/25	（IR情報）14:30 譲渡制限付株式報酬としての自己株式処分に関するお知らせ
06/25	3,570	3,590	3,480	3,495	+0.29%	42,500	-	+13.88%
06/24	3,490	3,640	3,440	3,485	-0.71%	80,500	-	+15.17%
06/23	3,790	3,790	3,460	3,510	-7.99%	88,800	-	+17.79%
06/22	3,765	3,850	3,750	3,815	+2.28%	53,000	-	+29.94%
06/19	3,755	3,875	3,665	3,730	+1.22%	71,000	-	+29.51%
06/19	（空売り報告）Barclays Capital Securities Ltd 180,123株（1.18%）-0.02%
06/18	3,690	3,805	3,650	3,685	+1.1%	56,000	-	+30.07%
06/18	（空売り報告）Barclays Capital Securities Ltd 181,923株（1.2%）+0.01%
06/17	3,460	3,680	3,410	3,645	+3.26%	76,100	-	+30.27%
06/16	3,610	3,760	3,495	3,530	-3.16%	98,000	-	+27.71%
06/15	3,385	3,700	3,360	3,645	+14.8%	222,500	-	+33.32%
06/12	3,000	3,225	2,958	3,175	+7.85%	84,400	-	+17.64%
06/11	2,998	3,010	2,876	2,944	-2.68%	40,600	-	+9.81%
06/11	（空売り報告）Barclays Capital Securities Ltd 181,123株（1.19%）-0.02%
06/10	3,050	3,200	2,961	3,025	+0.93%	101,400	-	+13.08%
06/10	（空売り報告）Barclays Capital Securities Ltd 183,523株（1.21%）+0.03%
06/09	2,827	3,005	2,827	2,997	+7.92%	78,900	-	+12.67%
06/08	2,658	2,792	2,641	2,777	-1.1%	47,700	-	+4.91%
06/05	2,720	2,817	2,661	2,808	+4.19%	47,900	-	+6.2%
06/05	（空売り報告）Barclays Capital Securities Ltd 179,623株（1.18%）-0.04%
06/04	2,649	2,710	2,626	2,695	+0.86%	20,600	-	+2.04%
06/03	2,689	2,700	2,631	2,672	+0.07%	21,000	-	+1.14%
06/02	2,726	2,758	2,609	2,670	-2.02%	46,000	-	+1.1%
06/02	（空売り報告）Barclays Capital Securities Ltd 186,223株（1.22%）+0.15%
06/01	2,777	2,810	2,690	2,725	+1.79%	43,700	-	+3.18%
05/29	2,662	2,747	2,662	2,677	+2.41%	47,500	-	+1.44%
05/29	（空売り報告）Barclays Capital Securities Ltd 163,123株（1.07%）-0.11%
05/28	2,569	2,634	2,492	2,614	+0.73%	22,600	-	-0.8%
05/27	2,719	2,750	2,595	2,595	-4.35%	27,400	-	-1.44%
05/26	（5%ルール）シンプレクス・アセット・マネジメント（10.68%）
05/26	2,646	2,713	2,626	2,713	+2.57%	28,000	-	+2.84%
05/25	2,500	2,671	2,500	2,645	+8.27%	38,100	-	+0.34%
05/25	（空売り報告）Barclays Capital Securities Ltd 179,323株（1.18%）+0.28%
05/22	2,418	2,455	2,418	2,443	+1.03%	11,900	-	-7.22%
05/21	2,343	2,442	2,343	2,418	+2.85%	19,300	-	-8.3%
05/20	2,385	2,396	2,270	2,351	-2.12%	49,200	-	-10.98%
05/19	2,424	2,489	2,381	2,402	-0.78%	54,300	-	-9.22%
05/18	2,601	2,650	2,405	2,421	-5.1%	60,100	-	-8.68%
05/15	（IR情報）14:50 2026年3月期決算短信〔日本基準〕(連結)
05/15	（IR情報）14:50 当社株式の大規模買付行為に関する対応方針(買収への対応方針)の継続について
05/15	2,867	2,899	2,522	2,551	-9.44%	83,000	-	-3.84%
05/14	2,781	2,850	2,780	2,817	+0.97%	34,000	-	+6.38%
05/14	（空売り報告）Barclays Capital Securities Ltd 137,123株（0.9%）+0.04%
05/13	2,784	2,850	2,740	2,790	+0.22%	26,000	-	+6%
05/12	2,760	2,802	2,736	2,784	+0.87%	26,400	-	+6.38%
05/11	2,730	2,768	2,696	2,760	+1.17%	17,000	-	+5.99%
05/11	（空売り報告）Barclays Capital Securities Ltd 131,623株（0.86%）-0.1%
05/08	2,769	2,794	2,700	2,728	-2.85%	16,700	-	+5.45%
05/07	2,716	2,837	2,704	2,808	+6.28%	26,500	-	+9.13%
05/07	（空売り報告）Barclays Capital Securities Ltd 145,823株（0.96%）-0.15%

石原ケミカル（4462）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