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
10/05	1,159	1,200	1,100	1,155	+5.1%	58,900	-	+10.74%
10/02	1,115	1,129	1,089	1,099	-0.63%	25,500	-	+6.08%
10/01	1,077	1,149	1,070	1,106	+2.5%	31,000	-	+7.17%
09/30	1,081	1,081	1,058	1,079	+2.66%	4,400	-	+5.06%
09/29	1,065	1,065	1,017	1,051	-1.31%	12,800	-	+2.74%
09/28	1,136	1,136	1,065	1,065	-1.02%	13,700	-	+4.31%
09/25	1,100	1,100	1,076	1,076	-0.74%	6,100	-	+5.7%
09/24	1,096	1,120	1,084	1,084	-0.28%	20,000	-	+6.9%
09/18	1,080	1,088	1,065	1,087	+2.55%	9,300	-	+7.62%
09/17	1,070	1,076	1,050	1,060	-0.28%	10,500	-	+5.37%
09/16	1,052	1,063	1,046	1,063	+0.85%	7,300	-	+5.98%
09/15	（IR情報）16:00 S&J、SOC運用から生まれた生成AI対応の国産セキュリティデータレイク「CSIRT-Pro」を提供開始
09/15	1,049	1,078	1,041	1,054	+2.43%	17,700	-	+4.77%
09/14	1,000	1,048	995	1,029	+4.36%	22,900	-	+2.08%
09/11	1,000	1,014	986	986	-2.47%	12,200	-	-2.38%
09/10	993	1,011	993	1,011	+1.1%	4,300	-	-0.3%
09/09	994	1,000	991	1,000	+0.5%	4,500	-	-1.57%
09/08	1,028	1,028	995	995	-2.55%	9,400	-	-2.45%
09/07	1,012	1,026	1,012	1,021	+0.99%	8,400	-	-0.29%
09/04	1,009	1,023	1,009	1,011	+1.1%	13,600	-	-1.37%
09/03	999	1,005	999	1,000	+0.2%	5,500	-	-2.53%
09/02	1,010	1,010	987	998	-1.09%	21,500	-	-3.01%
09/01	（IR情報）16:00 S&J、「My SOC 365」のサイバー攻撃監視範囲をクラウド基盤・情報資産まで拡大、Microsoft AzureとMicrosoft Purviewを監視対象に追加
09/01	1,030	1,030	998	1,009	-1.94%	9,900	-	-2.32%
08/31	1,004	1,029	998	1,029	+2.9%	25,600	-	-0.77%
08/28	998	1,015	997	1,000	+0.2%	12,300	-	-3.75%
08/27	994	1,002	992	998	+0.6%	12,200	-	-4.31%
08/26	987	998	985	992	+0.51%	7,500	-	-5.43%
08/25	982	990	976	987	+0.1%	23,500	-	-6.36%
08/24	999	1,002	986	986	-0.4%	12,300	-	-6.98%
08/21	986	998	982	990	-0.5%	11,500	-	-7.3%
08/20	971	995	971	995	+1.74%	36,900	-	-7.44%
08/19	978	979	971	978	0%	28,900	-	-9.44%
08/18	（IR情報）16:00 S&Jのエンジニアが「Microsoft Top Partner Engineer Award 2026」をSecurityカテゴリで受賞
08/18	981	992	977	978	-0.81%	29,400	-	-9.86%
08/17	990	1,000	973	986	-1.3%	66,900	-	-9.54%
08/14	983	1,019	983	999	+0.91%	32,400	-	-8.68%
08/13	990	1,039	980	990	-13.16%	150,400	-	-9.75%
08/12	（IR情報）16:00 2027年3月期第1四半期決算短信〔日本基準〕(非連結)
08/12	（IR情報）16:00 2027年3月期第1四半期決算説明資料
08/12	1,119	1,140	1,092	1,140	+4.68%	39,800	-	+3.45%
08/10	1,080	1,096	1,068	1,089	+1.02%	19,600	-	-1.09%
08/07	1,084	1,094	1,072	1,078	-0.55%	4,700	-	-2.18%
08/06	（IR情報）16:00 S＆Jと電通PRコンサルティング、電通総研「CyberCrisis 360」においてシミュレーショントレーニング統合プログラムを開発・提供へ
08/06	1,085	1,102	1,072	1,084	+0.74%	11,700	-	-1.54%
08/05	1,101	1,108	1,076	1,076	-0.92%	9,300	-	-2%
08/04	（IR情報）16:00 S&J、SOC自律化の潮流に応え「My SOC 365」にAI自動対処機能を搭載、脅威検知から対処完了までを数十秒で実行
08/04	1,079	1,090	1,073	1,086	-0.28%	4,000	-	-1.09%
08/03	1,071	1,090	1,045	1,089	+3.71%	8,200	-	-0.64%
07/31	1,042	1,074	1,041	1,050	-0.1%	7,800	-	-3.76%
07/30	1,062	1,073	1,050	1,051	-1.04%	8,900	-	-3.4%
07/29	1,083	1,098	1,047	1,062	-2.75%	44,600	-	-2.21%
07/28	1,103	1,119	1,073	1,092	-2.24%	10,600	-	+0.92%
07/27	1,072	1,117	1,072	1,117	+4.2%	16,500	-	+3.62%
07/24	1,105	1,105	1,061	1,072	-3.77%	28,800	-	-0.09%
07/23	1,140	1,154	1,110	1,114	-1.85%	24,100	-	+4.21%
07/22	1,123	1,135	1,102	1,135	+1.61%	20,400	-	+6.67%
07/21	1,160	1,160	1,114	1,117	-2.53%	28,000	-	+5.68%
07/17	1,170	1,177	1,124	1,146	-2.88%	40,600	-	+9.04%
07/16	1,188	1,226	1,171	1,180	+1.64%	42,200	-	+13.14%
07/15	1,149	1,175	1,127	1,161	+3.57%	20,900	-	+12.39%
07/14	1,118	1,141	1,106	1,121	+0.27%	24,900	-	+9.47%
07/13	1,114	1,129	1,104	1,118	+1.54%	12,600	-	+9.82%
07/10	1,073	1,112	1,065	1,101	+2.32%	20,300	-	+8.9%
07/09	1,081	1,092	1,068	1,076	-0.65%	17,300	-	+7.17%
07/08	1,100	1,113	1,080	1,083	-1.55%	16,100	-	+8.73%
07/07	1,150	1,150	1,100	1,100	-1.79%	28,700	-	+11.22%
07/06	1,097	1,145	1,090	1,120	+0.72%	47,200	-	+14.17%
07/03	1,062	1,114	1,041	1,112	+5.9%	54,900	-	+14.64%
07/02	1,053	1,084	1,046	1,050	+1.74%	20,000	-	+9.26%
07/01	1,068	1,071	1,016	1,032	-3.73%	24,100	-	+7.95%
06/30	1,038	1,076	1,025	1,072	+5%	47,600	-	+12.61%
06/29	1,000	1,030	1,000	1,021	+4.93%	36,800	-	+7.93%
06/26	989	989	973	973	-1.12%	8,400	-	+3.07%
06/25	（IR情報）16:00 支配株主等に関する事項について
06/25	999	999	975	984	-0.3%	13,900	-	+4.13%
06/24	969	1,001	969	987	+1.86%	29,700	-	+4.56%
06/23	1,008	1,008	958	969	-2.42%	26,400	-	+2.43%
06/22	976	1,002	973	993	+1.74%	24,400	-	+4.75%
06/19	1,000	1,000	965	976	-1.71%	28,800	-	+2.95%
06/18	997	1,025	990	993	+1.12%	47,000	-	+4.31%
06/17	973	1,006	971	982	+1.97%	23,800	-	+2.72%
06/16	969	972	950	963	-0.31%	24,300	-	-0.93%
06/15	944	975	944	966	+2.66%	20,900	-	-2.23%
06/12	936	948	919	941	+2.17%	35,300	-	-6.37%
06/11	925	943	908	921	-1.5%	37,300	-	-9.88%
06/10	967	977	925	935	-4.59%	64,000	-	-9.75%
06/09	935	999	935	980	+4.81%	52,900	-	-6.58%
06/08	928	938	898	935	+0.75%	37,100	-	-11.88%
06/05	898	944	898	928	+4.74%	48,500	-	-13.83%
06/04	896	900	866	886	-1.12%	42,300	-	-18.86%
06/03	918	931	880	896	-0.78%	83,200	-	-19.28%
06/02	840	920	835	903	+5.61%	118,300	-	-20.02%
06/01	887	890	840	855	-3.72%	107,600	-	-25.78%
05/29	920	932	888	888	-3.48%	101,000	-	-24.62%
05/28	919	935	910	920	-0.33%	63,200	-	-23.46%
05/27	938	946	916	923	-1.28%	73,300	-	-24.59%
05/26	953	955	928	935	-3.41%	69,800	-	-24.96%
05/26	（空売り報告）Nomura International plc 25,600株（0.45%）-0.08%義務消失
05/25	994	994	944	968	-1.93%	53,100	-	-23.66%
05/25	（空売り報告）Nomura International plc 30,000株（0.53%）-0.01%
05/22	981	1,003	981	987	+0.82%	38,000	-	-23.25%
05/21	1,012	1,012	976	979	-3.74%	57,500	-	-24.87%
05/21	（空売り報告）Nomura International plc 30,400株（0.54%）再IN
05/20	1,013	1,017	992	1,017	-0.49%	34,700	-	-23.01%
05/19	1,020	1,058	1,001	1,022	+1.19%	53,400	-	-23.73%
05/19	（空売り報告）Nomura International plc 24,700株（0.43%）-0.11%義務消失
05/18	1,036	1,046	986	1,010	-5.25%	132,400	-	-25.79%
05/18	（空売り報告）Nomura International plc 30,600株（0.54%）再IN
05/15	1,080	1,083	1,045	1,066	-2.38%	79,700	-	-22.7%
05/14	1,131	1,176	1,091	1,092	-21.5%	255,300	-	-21.78%
05/13	（IR情報）16:00 2026年3月期決算短信〔日本基準〕(非連結)
05/13	（IR情報）16:00 新任の監査等委員である取締役候補者の選任に関するお知らせ
05/13	（IR情報）16:00 剰余金の配当に関するお知らせ
05/13	（IR情報）16:00 事業計画及び成長可能性に関する事項(中期経営計画)
05/13	1,366	1,399	1,339	1,391	+3.27%	30,600	-	-1.35%
05/12	1,408	1,408	1,340	1,347	-4.33%	39,200	-	-4.6%

S&J（5599）のイベントチャート

2026/05/12～2026/10/05

イベント情報＆株価推移

開示資料

決算

株式

チャート