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	1,334	1,347	1,305	1,342	-0.07%	19,800	-	-0.96%
09/29	（IR情報）14:00 「特殊詐欺AI判定サービス」リリースのお知らせ
09/29	1,324	1,375	1,323	1,343	+0.83%	16,500	-	-0.81%
09/28	1,329	1,346	1,325	1,332	-0.67%	7,900	-	-1.7%
09/25	1,377	1,377	1,340	1,341	-0.96%	9,300	-	-1.03%
09/24	1,351	1,370	1,342	1,354	-0.22%	12,900	-	-0.07%
09/18	1,364	1,374	1,357	1,357	+1.72%	11,200	-	+0.15%
09/17	1,352	1,366	1,334	1,334	-1.33%	24,400	-	-1.48%
09/16	1,379	1,379	1,352	1,352	-1.89%	7,800	-	-0.07%
09/15	1,381	1,384	1,370	1,378	+0.8%	5,000	-	+2%
09/14	（IR情報）18:00 譲渡制限付株式報酬としての自己株式の処分に関するお知らせ
09/14	1,350	1,375	1,350	1,367	+1.26%	8,500	-	+1.33%
09/11	1,360	1,379	1,345	1,350	-1.1%	13,400	-	+0.22%
09/10	1,392	1,392	1,365	1,365	-1.66%	8,900	-	+1.34%
09/09	1,367	1,399	1,360	1,388	+1.31%	26,700	-	+3.12%
09/08	1,384	1,395	1,370	1,370	-0.22%	9,300	-	+2.09%
09/07	1,387	1,399	1,362	1,373	-0.29%	13,500	-	+2.69%
09/04	1,367	1,396	1,367	1,377	+0.73%	17,900	-	+3.46%
09/03	1,369	1,381	1,360	1,367	+1.48%	12,400	-	+3.17%
09/02	1,350	1,377	1,341	1,347	-0.88%	21,500	-	+2.05%
09/01	1,374	1,401	1,359	1,359	-0.51%	16,000	-	+3.35%
08/31	1,345	1,409	1,345	1,366	+0.37%	41,100	-	+4.2%
08/28	1,358	1,375	1,345	1,361	+0.07%	13,800	-	+4.29%
08/27	1,321	1,370	1,321	1,360	+2.8%	11,200	-	+4.45%
08/26	1,316	1,365	1,316	1,323	0%	16,000	-	+1.85%
08/25	（5%ルール）光通信（6.88%）UH Partners 2（3.19%）
08/25	1,349	1,349	1,321	1,323	-1.12%	4,400	-	+2.08%
08/24	1,359	1,370	1,338	1,338	+0.22%	10,000	-	+3.56%
08/21	1,357	1,360	1,331	1,335	-1.62%	8,700	-	+3.65%
08/20	1,321	1,359	1,321	1,357	+2.73%	5,100	-	+5.6%
08/19	1,358	1,358	1,321	1,321	-1.71%	10,500	-	+3.2%
08/18	1,371	1,371	1,344	1,344	-1.39%	9,700	-	+5.25%
08/17	1,378	1,379	1,347	1,363	+1.87%	19,600	-	+7.07%
08/14	1,301	1,345	1,300	1,338	+2.69%	19,400	-	+5.6%
08/13	1,300	1,329	1,292	1,303	0%	23,400	-	+2.92%
08/12	1,326	1,327	1,303	1,303	-1.14%	8,900	-	+2.84%
08/10	1,311	1,330	1,302	1,318	-0.08%	11,300	-	+3.94%
08/07	1,316	1,346	1,306	1,319	-2.01%	23,200	-	+4.1%
08/06	1,348	1,365	1,340	1,346	-0.59%	13,700	-	+6.4%
08/05	1,294	1,360	1,291	1,354	+5.62%	39,400	-	+7.29%
08/04	1,241	1,294	1,240	1,282	+2.31%	23,000	-	+1.83%
08/03	1,257	1,258	1,223	1,253	+1.87%	8,800	-	-0.4%
07/31	1,220	1,251	1,220	1,230	+0.49%	15,400	-	-2.07%
07/30	1,221	1,226	1,214	1,224	-0.41%	6,800	-	-2.55%
07/29	（IR情報）14:00 「2026年5月期決算説明会」要旨(書き起こし)
07/29	1,236	1,236	1,212	1,229	-0.24%	15,400	-	-2.23%
07/28	1,239	1,243	1,225	1,232	-0.81%	9,000	-	-1.99%
07/27	1,240	1,250	1,231	1,242	+0.32%	11,000	-	-1.27%
07/24	1,260	1,260	1,233	1,238	-2.21%	11,400	-	-1.51%
07/23	1,280	1,280	1,266	1,266	-1.63%	8,400	-	+0.8%
07/22	1,269	1,310	1,249	1,287	+2.47%	33,200	-	+2.55%
07/21	1,249	1,267	1,230	1,256	+2.61%	7,600	-	+0.32%
07/17	（IR情報）14:00 剰余金の配当に関するお知らせ
07/17	（IR情報）14:00 警察庁と特殊詐欺被害防止に向けた情報提供に関する覚書を締結
07/17	1,240	1,245	1,200	1,224	-1.53%	41,000	-	-2.16%
07/16	1,262	1,263	1,240	1,243	-0.56%	13,000	-	-0.64%
07/15	1,234	1,255	1,234	1,250	+1.38%	11,500	-	0%
07/15	（空売り報告）Nomura International plc 31,200株（0.47%）-0.11%義務消失
07/14	1,242	1,258	1,230	1,233	-0.72%	12,300	-	-1.36%
07/13	1,249	1,260	1,225	1,242	-0.56%	26,100	-	-0.56%
07/10	1,250	1,279	1,230	1,249	+2.29%	56,700	-	+0.08%
07/10	（空売り報告）Nomura International plc 38,500株（0.58%）-0.14%
07/09	（IR情報）14:00 2026年5月期決算説明・中期経営計画進捗説明資料
07/09	（IR情報）14:00 2026年5月期決算短信〔日本基準〕(非連結)
07/09	1,347	1,400	1,210	1,221	-7.29%	266,200	-	-2.24%
07/09	（空売り報告）Nomura International plc 48,000株（0.72%）再IN
07/08	1,301	1,326	1,298	1,317	-0.45%	19,300	-	+5.36%
07/07	1,330	1,340	1,310	1,323	0%	6,100	-	+6.01%
07/06	1,310	1,349	1,310	1,323	+1.77%	16,100	-	+6.18%
07/03	1,257	1,305	1,257	1,300	+3.5%	26,000	-	+4.42%
07/02	1,278	1,281	1,256	1,256	-1.72%	7,300	-	+0.64%
07/01	1,292	1,292	1,255	1,278	-0.85%	4,600	-	+2.16%
06/30	1,239	1,289	1,228	1,289	+4.04%	7,100	-	+2.63%
06/29	1,221	1,255	1,220	1,239	+1.47%	9,100	-	-1.74%
06/26	1,201	1,226	1,200	1,221	-0.57%	12,500	-	-3.71%
06/25	1,256	1,266	1,219	1,228	-0.57%	13,900	-	-3.76%
06/24	（IR情報）18:00 アナリスト・機関投資家向け2026 年５月期決算説明会（会場とウェビナーのハイブリッド型）開催のお知らせ
06/24	1,230	1,240	1,216	1,235	-0.16%	3,400	-	-3.59%
06/23	1,254	1,254	1,215	1,237	-1.36%	7,800	-	-3.59%
06/22	1,230	1,261	1,227	1,254	+4.07%	11,200	-	-2.64%
06/19	1,247	1,249	1,204	1,205	-2.35%	11,200	-	-6.66%
06/18	1,223	1,245	1,213	1,234	+0.9%	11,700	-	-4.78%
06/17	1,217	1,259	1,217	1,223	+0.58%	10,900	-	-6.07%
06/16	1,228	1,228	1,197	1,216	-0.98%	12,300	-	-7.18%
06/15	1,225	1,246	1,209	1,228	+0.24%	9,600	-	-6.97%
06/12	1,215	1,226	1,203	1,225	+0.82%	7,400	-	-7.89%
06/11	1,229	1,229	1,206	1,215	-3.49%	9,700	-	-9.26%
06/10	1,229	1,259	1,213	1,259	+3.37%	13,600	-	-6.67%
06/09	1,211	1,250	1,207	1,218	+0.33%	25,500	-	-10.18%
06/08	1,240	1,251	1,212	1,214	-3.73%	16,600	-	-11.13%
06/05	1,260	1,299	1,257	1,261	+0.48%	14,400	-	-8.36%
06/04	1,266	1,305	1,255	1,255	-1.41%	14,100	-	-9.32%
06/03	1,250	1,333	1,250	1,273	+1.03%	14,900	-	-8.55%
06/02	1,300	1,300	1,248	1,260	-3.45%	20,800	-	-10.06%
06/01	1,364	1,364	1,300	1,305	-4.33%	18,100	-	-7.58%
06/01	株式分割 1→2
05/29	1,392	1,392	1,312	1,364	+1.34%	19,400	-	-3.81%
05/28	1,361	1,389	1,344	1,346	-3.13%	15,500	-	-5.28%
05/27	1,435	1,435	1,380	1,390	-1.42%	23,800	-	-2.56%
05/26	1,426	1,426	1,405	1,410	-1.02%	40,600	-	-1.5%
05/25	1,438	1,470	1,405	1,424	+0.32%	53,400	-	-0.7%
05/22	1,388	1,421	1,375	1,420	+4.18%	32,000	-	-1.15%
05/21	1,348	1,398	1,343	1,363	+6.32%	37,200	-	-4.99%
05/20	1,340	1,369	1,281	1,282	-5.07%	26,600	-	-10.63%
05/19	1,369	1,397	1,344	1,350	+0.37%	23,200	-	-6.18%
05/18	1,325	1,354	1,315	1,345	+1.55%	9,000	-	-6.66%
05/15	1,378	1,386	1,276	1,325	-3.85%	49,200	-	-8.21%
05/14	1,425	1,425	1,363	1,378	-3.5%	35,200	-	-4.74%
05/13	1,480	1,480	1,420	1,428	-1.89%	12,400	-	-1.35%
05/12	1,520	1,520	1,435	1,455	-1.72%	21,400	-	+0.76%
05/11	1,488	1,523	1,463	1,481	+1.23%	31,400	-	+2.74%
05/08	1,470	1,479	1,463	1,463	-0.51%	6,200	-	+1.77%
05/07	1,452	1,545	1,443	1,470	+2.33%	21,800	-	+2.44%

ドーン（2303）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