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	1,544	1,550	1,514	1,521	-1.43%	1,300	-	+4.68%
09/29	1,540	1,550	1,500	1,543	+2.87%	5,700	-	+6.49%
09/28	（5%ルール）UH5（0.37%）EPARK（1.06%）光通信（7.31%）UH Partners 3（2.27%）UH Partners 2（7.33%）
09/28	1,464	1,500	1,464	1,500	-0.07%	400	-	+3.81%
09/25	1,510	1,533	1,485	1,501	+1.42%	2,000	-	+4.09%
09/24	1,487	1,520	1,458	1,480	-2.95%	1,000	-	+2.85%
09/18	1,540	1,550	1,450	1,525	-0.97%	3,900	-	+6.12%
09/17	1,568	1,568	1,535	1,540	-1.41%	3,900	-	+7.47%
09/16	1,433	1,571	1,433	1,562	+10%	23,700	-	+9.38%
09/15	1,420	1,420	1,420	1,420	-1.05%	400	-	-0.21%
09/14	1,420	1,445	1,405	1,435	+1.06%	6,800	-	+0.84%
09/10	1,420	1,420	1,420	1,420	-0.42%	100	-	-0.21%
09/09	1,421	1,445	1,421	1,426	-1.18%	2,400	-	+0.28%
09/08	1,440	1,443	1,440	1,443	+0.28%	2,200	-	+1.62%
09/07	1,438	1,439	1,438	1,439	+0.7%	1,100	-	+1.41%
09/04	1,429	1,429	1,429	1,429	-0.07%	100	-	+0.78%
09/03	1,405	1,430	1,405	1,430	+2.22%	4,800	-	+0.85%
09/02	1,401	1,401	1,380	1,399	-0.57%	400	-	-1.34%
09/01	1,404	1,407	1,404	1,407	-0.57%	400	-	-0.85%
08/31	1,414	1,415	1,410	1,415	+0.35%	700	-	-0.28%
08/28	1,420	1,420	1,410	1,410	-0.35%	700	-	-0.56%
08/27	（5%ルール）UH Partners 2（7.33%）EPARK（1.06%）光通信（7.31%）UH Partners 3（1.89%）UH5（0.37%）
08/26	1,415	1,415	1,415	1,415	+1%	200	-	-0.14%
08/25	1,430	1,430	1,401	1,401	-1.34%	800	-	-1.06%
08/24	1,419	1,420	1,411	1,420	0%	700	-	+0.28%
08/21	1,423	1,423	1,400	1,420	-0.21%	2,000	-	+0.35%
08/20	1,420	1,428	1,420	1,423	+0.21%	2,100	-	+0.64%
08/19	1,434	1,434	1,420	1,420	-1.05%	1,200	-	+0.5%
08/18	1,435	1,435	1,435	1,435	0%	500	-	+1.56%
08/17	1,435	1,435	1,435	1,435	0%	1,100	-	+1.7%
08/14	1,424	1,435	1,400	1,435	+0.77%	3,400	-	+1.77%
08/13	1,429	1,429	1,398	1,424	-0.07%	2,800	-	+1.14%
08/12	1,424	1,425	1,424	1,425	+0.07%	1,500	-	+1.35%
08/10	1,415	1,424	1,404	1,424	-0.14%	500	-	+1.57%
08/07	（IR情報）13:00 通期業績予想の修正に関するお知らせ
08/07	（IR情報）13:00 2027年3月期第1四半期決算短信〔日本基準〕(連結)
08/07	1,426	1,435	1,405	1,426	0%	4,300	-	+1.93%
08/06	1,427	1,427	1,426	1,426	-0.14%	700	-	+2.22%
08/05	1,433	1,435	1,402	1,428	+1.78%	800	-	+2.73%
08/04	1,369	1,403	1,369	1,403	+2.48%	1,500	-	+1.3%
08/03	1,450	1,450	1,355	1,369	-2.84%	5,100	-	-0.87%
07/31	1,426	1,426	1,408	1,409	-0.77%	500	-	+2.25%
07/30	1,427	1,427	1,420	1,420	-0.35%	400	-	+3.5%
07/29	1,425	1,425	1,425	1,425	-0.21%	100	-	+4.24%
07/28	1,423	1,428	1,423	1,428	0%	400	-	+4.92%
07/27	1,423	1,443	1,423	1,428	+1.64%	3,600	-	+5.31%
07/24	1,403	1,405	1,390	1,405	+1.08%	4,200	-	+4%
07/23	1,398	1,398	1,390	1,390	-0.71%	300	-	+3.27%
07/22	1,400	1,400	1,390	1,400	+1.08%	400	-	+4.32%
07/21	1,385	1,401	1,382	1,385	0%	500	-	+3.51%
07/16	1,387	1,404	1,385	1,385	-1.35%	1,200	-	+3.75%
07/15	1,380	1,404	1,380	1,404	-0.43%	400	-	+5.48%
07/14	1,390	1,410	1,382	1,410	+1.44%	800	-	+6.42%
07/13	1,419	1,419	1,390	1,390	-2.04%	500	-	+5.3%
07/10	1,390	1,439	1,390	1,419	+1.79%	5,200	-	+7.83%
07/09	1,394	1,394	1,364	1,394	-0.07%	500	-	+6.57%
07/08	1,380	1,400	1,380	1,395	+1.09%	1,500	-	+7.06%
07/07	1,370	1,380	1,370	1,380	+0.73%	2,500	-	+6.48%
07/06	1,360	1,370	1,350	1,370	+1.71%	2,600	-	+6.04%
07/03	1,341	1,349	1,321	1,347	+0.15%	1,100	-	+4.5%
07/02	1,313	1,350	1,308	1,345	+2.36%	3,400	-	+4.59%
07/01	1,310	1,372	1,309	1,314	+0.38%	5,100	-	+2.26%
06/30	1,309	1,309	1,305	1,309	-0.08%	400	-	+1.95%
06/29	1,291	1,310	1,290	1,310	+1.16%	1,500	-	+2.1%
06/26	1,264	1,295	1,260	1,295	+0.7%	1,000	-	+1.01%
06/25	1,295	1,295	1,285	1,286	+1.66%	1,400	-	+0.39%
06/24	1,290	1,304	1,263	1,265	-2.17%	5,200	-	-1.17%
06/23	1,290	1,293	1,275	1,293	+1.33%	1,700	-	+0.86%
06/22	（IR情報）15:00 中期経営計画(2027年3月期～2029年3月期)策定のお知らせ
06/22	1,310	1,310	1,276	1,276	-2.74%	800	-	-0.47%
06/19	1,282	1,330	1,282	1,312	+1.47%	6,200	-	+2.26%
06/18	1,280	1,297	1,262	1,293	+0.23%	1,000	-	+0.78%
06/17	1,290	1,290	1,290	1,290	0%	100	-	+0.39%
06/15	1,298	1,298	1,290	1,290	-0.62%	200	-	+0.23%
06/12	1,298	1,298	1,298	1,298	0%	1,000	-	+0.62%
06/11	1,295	1,298	1,295	1,298	+1.25%	2,400	-	+0.78%
06/10	1,252	1,282	1,252	1,282	+1.58%	500	-	-0.31%
06/09	1,294	1,298	1,262	1,262	-1.48%	600	-	-1.79%
06/08	1,281	1,281	1,281	1,281	-0.93%	300	-	-0.23%
06/05	1,292	1,300	1,286	1,293	+4.95%	16,300	-	+0.94%
06/04	1,250	1,250	1,232	1,232	-1.83%	1,200	-	-3.6%
06/03	1,240	1,275	1,240	1,255	+1.54%	1,800	-	-1.8%
06/02	1,251	1,251	1,235	1,236	-2.75%	1,300	-	-3.13%
06/01	1,284	1,300	1,271	1,271	-2%	500	-	-0.31%
05/29	1,288	1,297	1,260	1,297	+1.89%	1,000	-	+1.89%
05/28	1,272	1,273	1,257	1,273	-2.23%	800	-	+0.32%
05/26	1,282	1,302	1,272	1,302	+0.7%	700	-	+2.76%
05/25	1,301	1,302	1,239	1,293	-0.77%	4,200	-	+2.38%
05/22	1,274	1,330	1,274	1,303	+2.28%	4,200	-	+3.41%
05/21	（IR情報）17:00 会計監査人の異動に関するお知らせ
05/21	1,264	1,274	1,264	1,274	+0.47%	1,500	-	+1.35%
05/20	1,272	1,272	1,208	1,268	-0.08%	4,700	-	+1.04%
05/19	1,299	1,299	1,266	1,269	-2.16%	800	-	+1.28%
05/18	（5%ルール）UH5（0.37%）光通信（7.31%）UH Partners 3（1.04%）UH Partners 2（7.33%）EPARK（0.9%）
05/18	1,268	1,297	1,268	1,297	-0.08%	600	-	+3.76%
05/15	1,318	1,318	1,276	1,298	-1.29%	1,000	-	+4.26%
05/14	1,285	1,315	1,281	1,315	+1.15%	1,100	-	+5.96%
05/13	1,307	1,324	1,296	1,300	-2.77%	3,300	-	+5.18%
05/12	1,340	1,380	1,313	1,337	-0.89%	7,600	-	+8.52%
05/11	1,368	1,369	1,301	1,349	-1.53%	8,700	-	+9.94%
05/08	（IR情報）13:00 「資本コストや株価を意識した経営の実現に向けた対応」に関するお知らせ(アップデート)
05/08	（IR情報）13:00 2026年3月期決算短信〔日本基準〕(連結)
05/08	1,259	1,400	1,251	1,370	+9.78%	22,300	-	+11.93%
05/07	1,247	1,248	1,236	1,248	-0.16%	1,700	-	+2.38%
05/01	1,281	1,281	1,239	1,250	-0.24%	2,400	-	+2.63%
04/30	1,254	1,254	1,230	1,253	+2.12%	1,100	-	+2.96%
04/28	1,257	1,257	1,221	1,227	0%	600	-	+0.9%
04/27	1,222	1,227	1,222	1,227	+0.9%	700	-	+0.74%
04/24	1,249	1,249	1,213	1,216	-1.14%	2,400	-	-0.33%
04/23	（IR情報）15:00 期末配当予想の修正(増配)に関するお知らせ

システムズ・デザイン（3766）のイベントチャート

2026/04/24～2026/09/30

イベント情報＆株価推移

開示資料

決算

株式

チャート