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
09/15	3,295	3,335	3,270	3,310	+0.15%	5,900	-	+0.09%
09/14	3,250	3,320	3,250	3,305	+1.69%	16,200	-	+0.03%
09/11	3,270	3,270	3,220	3,250	-1.52%	24,400	-	-1.63%
09/10	3,350	3,350	3,290	3,300	-1.2%	20,200	-	-0.21%
09/09	3,300	3,360	3,300	3,340	+0.6%	16,900	-	+0.91%
09/08	3,320	3,365	3,285	3,320	-0.15%	15,700	-	+0.15%
09/07	3,275	3,335	3,275	3,325	+1.37%	11,700	-	+0.18%
09/04	3,310	3,310	3,275	3,280	-0.91%	10,100	-	-1.32%
09/03	3,305	3,325	3,290	3,310	+0.15%	13,600	-	-0.6%
09/02	3,325	3,360	3,305	3,305	-1.49%	15,300	-	-0.9%
09/01	3,365	3,385	3,350	3,355	+0.15%	13,800	-	+0.48%
08/31	3,335	3,380	3,335	3,350	-0.89%	13,300	-	+0.21%
08/28	3,370	3,395	3,360	3,380	+0.45%	8,100	-	+1.05%
08/27	3,355	3,385	3,330	3,365	-0.59%	6,700	-	+0.63%
08/26	3,305	3,395	3,295	3,385	+2.89%	20,300	-	+1.23%
08/25	3,250	3,300	3,250	3,290	+0.46%	19,300	-	-1.53%
08/24	3,270	3,310	3,255	3,275	+0.15%	24,600	-	-1.98%
08/21	3,240	3,275	3,235	3,270	-0.15%	17,000	-	-2.15%
08/20	3,220	3,275	3,220	3,275	+2.18%	12,500	-	-2.09%
08/19	3,240	3,240	3,195	3,205	-1.54%	28,900	-	-4.3%
08/18	3,295	3,295	3,255	3,255	-0.91%	12,400	-	-2.98%
08/17	3,340	3,355	3,280	3,285	-1.5%	26,600	-	-2.29%
08/14	3,340	3,345	3,300	3,335	+0.45%	21,000	-	-0.92%
08/13	3,285	3,320	3,280	3,320	+1.07%	18,200	-	-1.45%
08/12	3,245	3,330	3,245	3,285	+1.23%	24,300	-	-2.7%
08/10	3,280	3,285	3,245	3,245	-1.22%	17,100	-	-4.16%
08/07	3,330	3,340	3,285	3,285	-1.35%	18,400	-	-3.27%
08/06	3,370	3,390	3,325	3,330	-1.19%	12,700	-	-2.12%
08/05	3,300	3,380	3,255	3,370	-3.3%	37,000	-	-1%
08/04	（IR情報）15:30 2027年3月期第1四半期決算短信〔日本基準〕(非連結)
08/04	3,425	3,510	3,415	3,485	+2.05%	25,500	-	+2.41%
08/03	3,480	3,480	3,355	3,415	-1.01%	12,100	-	+0.5%
07/31	3,435	3,485	3,405	3,450	+1.02%	12,100	-	+1.68%
07/30	3,420	3,450	3,390	3,415	-0.58%	10,700	-	+0.83%
07/29	3,450	3,450	3,355	3,435	+0.73%	26,400	-	+1.57%
07/28	3,435	3,435	3,365	3,410	-1.45%	23,100	-	+0.98%
07/27	3,415	3,480	3,400	3,460	+1.76%	13,300	-	+2.46%
07/24	3,340	3,400	3,305	3,400	+1.19%	17,000	-	+0.8%
07/23	3,370	3,400	3,335	3,360	-0.3%	28,900	-	-0.36%
07/22	3,320	3,410	3,310	3,370	+1.81%	25,800	-	-0.06%
07/21	3,270	3,335	3,265	3,310	+1.22%	22,300	-	-1.72%
07/17	3,300	3,300	3,225	3,270	-0.91%	18,000	-	-2.88%
07/16	3,355	3,355	3,300	3,300	-1.64%	10,900	-	-1.81%
07/15	（IR情報）17:00 取締役及び執行役員に対する譲渡制限付株式報酬としての自己株式の処分の払込完了に関するお知らせ
07/15	3,385	3,385	3,315	3,355	-0.45%	35,000	-	+0.06%
07/14	3,340	3,370	3,320	3,370	+0.45%	12,400	-	+0.78%
07/13	3,405	3,440	3,325	3,355	-2.04%	19,600	-	+0.63%
07/10	3,425	3,470	3,410	3,425	+0.88%	13,200	-	+2.98%
07/09	3,400	3,420	3,360	3,395	-0.44%	18,000	-	+2.32%
07/08	3,480	3,545	3,405	3,410	-2.71%	13,000	-	+2.99%
07/07	3,660	3,660	3,495	3,505	-0.43%	75,800	-	+6.15%
07/06	3,510	3,600	3,505	3,520	+0.86%	26,500	-	+7.02%
07/03	3,435	3,495	3,435	3,490	+1.45%	21,600	-	+6.63%
07/02	3,385	3,475	3,375	3,440	+1.47%	15,200	-	+5.36%
07/01	3,385	3,410	3,345	3,390	+1.8%	13,600	-	+4.08%
06/30	3,390	3,390	3,285	3,330	-0.89%	18,200	-	+2.37%
06/29	3,300	3,375	3,300	3,360	+1.82%	15,800	-	+3.42%
06/26	3,265	3,310	3,255	3,300	+0.15%	24,100	-	+1.69%
06/25	（IR情報）17:30 取締役、執行役員及び使用人に対する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
06/25	（IR情報）17:30 支配株主等に関する事項について
06/25	（IR情報）17:30 第84期定時株主総会における決議結果に関するお知らせ
06/25	（IR情報）17:30 執行役員の選任に関するお知らせ
06/25	3,285	3,345	3,275	3,295	+0.3%	12,000	-	+1.67%
06/24	3,285	3,305	3,235	3,285	-1.2%	24,300	-	+1.45%
06/23	3,400	3,415	3,300	3,325	-2.21%	13,900	-	+2.75%
06/22	3,370	3,405	3,360	3,400	+1.19%	10,700	-	+5.2%
06/19	3,385	3,435	3,360	3,360	-0.3%	38,100	-	+4.15%
06/18	3,420	3,420	3,365	3,370	0%	30,400	-	+4.5%
06/17	3,240	3,400	3,235	3,370	+2.9%	36,700	-	+4.59%
06/16	3,290	3,290	3,215	3,275	0%	13,200	-	+0.92%
06/15	3,140	3,280	3,135	3,275	+4.8%	28,400	-	+0.03%
06/12	3,125	3,150	3,070	3,125	+0.64%	23,100	-	-5.3%
06/11	3,115	3,115	3,020	3,105	-0.32%	45,400	-	-6.67%
06/10	3,130	3,130	3,080	3,115	-0.64%	18,700	-	-7.24%
06/09	3,190	3,200	3,120	3,135	-0.16%	21,200	-	-7.33%
06/08	3,175	3,190	3,095	3,140	-3.24%	38,200	-	-7.81%
06/05	3,175	3,270	3,175	3,245	+0.93%	19,200	-	-5.39%
06/04	3,180	3,230	3,155	3,215	+0.94%	26,900	-	-6.62%
06/03	3,185	3,220	3,165	3,185	+0.63%	25,800	-	-8%
06/02	3,160	3,195	3,110	3,165	+0.8%	31,300	-	-9.1%
06/01	3,295	3,295	3,100	3,140	-4.12%	55,300	-	-10.36%
05/29	（IR情報）15:30 代表取締役及び役員等の異動に関するお知らせ
05/29	3,235	3,340	3,210	3,275	+0.61%	69,100	-	-7.2%
05/28	3,290	3,295	3,185	3,255	-0.61%	57,900	-	-8.18%
05/27	3,245	3,280	3,170	3,275	+1.39%	46,600	-	-8.11%
05/26	3,270	3,285	3,210	3,230	-0.77%	35,800	-	-9.85%
05/25	3,240	3,290	3,225	3,255	+1.56%	37,000	-	-9.68%
05/22	3,260	3,260	3,175	3,205	-0.77%	46,600	-	-11.63%
05/21	3,265	3,325	3,210	3,230	0%	31,200	-	-11.58%
05/20	3,215	3,245	3,155	3,230	+0.31%	47,500	-	-12.25%
05/19	3,255	3,330	3,200	3,220	-1.08%	34,400	-	-13.23%
05/18	3,335	3,340	3,195	3,255	-2.54%	61,700	-	-12.99%
05/15	3,305	3,395	3,300	3,340	+1.21%	54,600	-	-11.24%
05/14	（IR情報）18:30 (訂正)「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ついて」の一部訂正について
05/14	（IR情報）18:30 (訂正)「中期経営計画の見直しに関するお知らせ」の一部訂正について
05/14	3,465	3,520	3,235	3,300	-16.14%	287,100	-	-12.77%
05/13	（IR情報）15:30 2026年3月期決算短信〔日本基準〕(非連結)
05/13	（IR情報）15:30 中期経営計画の見直しに関するお知らせ
05/13	（IR情報）15:30 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ついて
05/13	（IR情報）15:30 剰余金の配当に関するお知らせ
05/13	（IR情報）15:30 役員等の異動に関するお知らせ
05/13	4,010	4,010	3,900	3,935	-1.63%	21,500	-	+3.39%
05/12	3,925	4,010	3,925	4,000	+1.91%	33,200	-	+5.1%
05/11	3,800	3,925	3,800	3,925	+3.02%	18,200	-	+3.21%
05/08	3,840	3,860	3,750	3,810	-1.68%	25,000	-	+0.32%
05/07	3,845	3,925	3,835	3,875	+3.47%	26,800	-	+2.03%
05/01	3,670	3,745	3,670	3,745	+1.35%	7,200	-	-1.42%
04/30	3,725	3,725	3,640	3,695	-1.07%	23,900	-	-2.92%
04/28	3,620	3,740	3,620	3,735	+4.04%	25,000	-	-2.15%
04/27	3,670	3,680	3,590	3,590	-2.18%	24,600	-	-6.12%
04/24	3,715	3,720	3,660	3,670	-0.68%	12,700	-	-4.25%
04/23	3,685	3,705	3,620	3,695	+0.27%	21,900	-	-3.9%
04/22	3,765	3,810	3,685	3,685	-3.03%	27,800	-	-4.63%
04/21	3,715	3,805	3,710	3,800	+3.26%	23,300	-	-2.04%

第一建設工業（1799）のイベントチャート

2026/04/21～2026/09/15

イベント情報＆株価推移

開示資料

決算

株式

チャート