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
10/06	426	426	421	424	+0.47%	518,500	-	-2.97%
10/05	（IR情報）16:00 「Japan DX & AX Week 【秋】 2026 社内業務 DX EXPO」出展のお知らせ
10/05	421	422	417	422	-0.47%	663,600	-	-3.65%
10/02	424	425	419	424	+0.24%	841,200	-	-3.42%
10/01	422	425	419	423	+0.24%	842,200	-	-3.86%
09/30	422	423	416	422	0%	1,012,200	-	-4.31%
09/29	427	428	422	422	-2.99%	795,200	-	-4.31%
09/28	437	439	434	435	-0.23%	903,200	-	-1.58%
09/25	437	441	435	436	-0.23%	682,900	-	-1.36%
09/24	432	439	431	437	-0.68%	844,700	-	-1.13%
09/18	441	442	438	440	-0.23%	742,500	-	-0.45%
09/17	438	443	438	441	+0.92%	711,800	-	-0.23%
09/16	441	442	437	437	-0.91%	487,300	-	-0.91%
09/15	447	447	437	441	-0.45%	663,900	-	0%
09/14	433	443	430	443	+4.24%	1,077,900	-	+0.68%
09/11	420	427	420	425	-0.7%	1,103,600	-	-3.19%
09/10	423	429	421	428	+0.94%	615,700	-	-2.51%
09/09	431	431	423	424	-2.3%	824,800	-	-3.42%
09/08	435	437	432	434	-0.23%	723,500	-	-0.91%
09/07	449	450	435	435	-3.97%	1,045,800	-	-0.68%
09/04	452	456	450	453	+0.44%	1,124,300	-	+3.66%
09/03	447	454	446	451	+0.22%	836,500	-	+2.97%
09/02	456	460	450	450	-3.64%	1,589,600	-	+2.74%
09/01	460	468	460	467	+1.74%	1,309,100	-	+6.62%
08/31	459	466	457	459	+0.66%	1,601,700	-	+5.28%
08/28	449	457	445	456	+2.93%	1,846,300	-	+4.83%
08/27	445	449	442	443	-0.23%	496,100	-	+2.31%
08/26	445	449	443	444	0%	530,300	-	+2.54%
08/25	450	450	442	444	-0.67%	603,200	-	+2.78%
08/24	445	451	443	447	+1.59%	649,300	-	+3.71%
08/21	440	443	439	440	-0.45%	539,100	-	+2.33%
08/20	442	446	439	442	+2.55%	1,145,900	-	+3.03%
08/19	（IR情報）16:00 【国内初】Supermicro社「Goldシリーズ」取り扱いおよび販売強化を開始
08/19	434	434	427	431	-0.46%	1,111,600	-	+0.7%
08/18	430	437	429	433	-0.23%	895,400	-	+1.17%
08/17	434	438	431	434	-0.91%	937,500	-	+1.64%
08/14	428	441	428	438	+2.34%	1,247,400	-	+2.58%
08/13	428	432	423	428	-1.15%	1,688,700	-	+0.47%
08/12	425	433	422	433	+3.1%	1,239,800	-	+1.64%
08/10	424	424	419	420	-0.47%	941,600	-	-1.18%
08/07	420	423	418	422	+1.2%	1,010,000	-	-0.71%
08/06	416	420	412	417	-0.24%	1,294,000	-	-1.65%
08/05	415	423	414	418	+0.72%	1,100,900	-	-1.18%
08/04	425	425	412	415	-2.12%	1,207,100	-	-1.66%
08/03	423	427	418	424	+0.95%	1,540,800	-	+0.47%
07/31	（IR情報）18:30 システナ、富士スピードウェイとネーミングライツ契約を締結- 富士スピードウェイに「システナゴールブリッジ」と「2317コーナー」が誕生 -
07/31	422	428	413	420	-10.26%	3,731,500	-	0%
07/30	（IR情報）16:00 2027年3月期第1四半期決算短信〔日本基準〕(連結)
07/30	459	469	455	468	+2.86%	2,859,700	-	+11.69%
07/29	446	458	441	455	+3.17%	1,594,700	-	+9.38%
07/28	441	444	438	441	+0.68%	1,072,100	-	+6.78%
07/27	430	438	428	438	+3.3%	1,116,900	-	+6.57%
07/24	416	424	416	424	+1.44%	1,227,600	-	+3.67%
07/23	417	422	416	418	-0.95%	799,700	-	+2.2%
07/22	420	424	417	422	+0.24%	810,600	-	+3.43%
07/21	423	427	421	421	+0.72%	812,200	-	+3.44%
07/17	（IR情報）16:00 システナ「ASTERIA Warp HR Adapter for カオナビ」に「シート情報連携」機能を新規追加し提供開始
07/17	421	425	417	418	-0.48%	939,600	-	+2.96%
07/16	420	425	418	420	-0.47%	1,146,700	-	+3.7%
07/15	416	423	414	422	+0.48%	1,003,900	-	+4.2%
07/14	425	427	420	420	-0.24%	673,000	-	+3.96%
07/13	424	427	419	421	-0.24%	716,000	-	+4.21%
07/10	424	427	421	422	-0.47%	739,000	-	+4.46%
07/09	419	428	419	424	+0.95%	566,900	-	+4.95%
07/08	424	425	420	420	-0.24%	742,800	-	+3.96%
07/07	419	425	418	421	+1.2%	835,600	-	+4.47%
07/06	413	416	413	416	+0.73%	677,200	-	+3.23%
07/03	414	417	411	413	+1.72%	1,220,800	-	+2.48%
07/02	407	409	402	406	+3.84%	1,448,700	-	+0.5%
07/01	394	396	389	391	-1.26%	909,800	-	-3.22%
06/30	398	401	394	396	-0.5%	1,471,300	-	-2.22%
06/29	397	405	391	398	+1.79%	1,557,100	-	-1.97%
06/26	389	391	385	391	+1.3%	891,800	-	-3.93%
06/25	（IR情報）16:00 役員の異動に関するお知らせ
06/25	390	391	386	386	-0.52%	1,119,700	-	-5.62%
06/24	391	396	386	388	0%	1,449,000	-	-5.37%
06/23	394	394	386	388	-2.02%	1,257,000	-	-5.6%
06/22	394	402	391	396	+0.25%	842,400	-	-4.12%
06/19	400	400	395	395	-1.74%	1,337,400	-	-4.36%
06/18	397	405	396	402	+1.52%	1,137,900	-	-2.9%
06/17	402	402	396	396	0%	1,423,800	-	-4.35%
06/16	401	402	395	396	-1.49%	1,249,000	-	-4.58%
06/15	405	406	401	402	0%	612,200	-	-3.37%
06/12	407	410	401	402	-1.47%	1,046,100	-	-3.6%
06/11	417	418	405	408	-0.97%	770,300	-	-2.63%
06/10	407	414	403	412	0%	1,110,000	-	-1.67%
06/09	419	419	411	412	-1.2%	859,000	-	-1.9%
06/08	419	423	414	417	-1.42%	880,200	-	-0.71%
06/05	420	424	415	423	+1.68%	925,300	-	+0.48%
06/04	410	418	408	416	0%	889,600	-	-1.19%
06/03	418	420	408	416	-0.72%	1,454,500	-	-1.42%
06/02	421	422	413	419	+0.48%	1,720,600	-	-0.95%
06/01	420	425	413	417	-0.24%	2,041,300	-	-1.65%
05/29	427	435	418	418	-0.71%	1,395,600	-	-1.65%
05/28	420	427	416	421	+0.24%	1,014,500	-	-0.94%
05/27	416	420	412	420	+0.24%	924,300	-	-1.41%
05/26	421	424	419	419	-1.18%	781,200	-	-1.87%
05/25	421	424	417	424	+0.95%	1,041,400	-	-0.7%
05/22	418	423	415	420	0%	935,300	-	-1.64%
05/21	（IR情報）15:00 2026年3月期決算説明資料
05/21	428	428	418	420	0%	959,600	-	-1.64%
05/20	423	427	417	420	-1.18%	1,096,200	-	-1.64%
05/19	416	425	413	425	+3.66%	1,319,000	-	-0.47%
05/18	413	415	406	410	-0.49%	1,066,200	-	-3.98%
05/15	405	412	403	412	+1.23%	1,453,300	-	-3.74%
05/14	396	407	395	407	-3.1%	2,828,900	-	-4.91%
05/13	（IR情報）16:00 役員の異動に関するお知らせ
05/13	（IR情報）16:00 定款の一部変更に関するお知らせ
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 支配株主等に関する事項について
05/13	（IR情報）16:00 中期経営計画策定に関するお知らせ
05/13	（IR情報）16:00 2026年3月期決算短信〔日本基準〕(連結)
05/13	420	425	417	420	-1.41%	1,653,300	-	-2.1%

システナ（2317）のイベントチャート

2026/05/13～2026/10/06

イベント情報＆株価推移

開示資料

決算

株式

チャート