| 2025 |
| 05/14 | （IR情報）14:00 業績予想の修正に関するお知らせ |
| 05/14 | （IR情報）14:00 2025年12月期第1四半期決算短信〔日本基準〕(連結) |
| 05/14 | 3,910 | 4,040 | 3,810 | 4,030 | +3.47% | 68,700 | 404億9344万 | +2.41% |
| 05/14 | （空売り報告）モルガン・スタンレーMUFG証券 67,827株（0.67%）-0.03% |
| 05/13 | 4,015 | 4,035 | 3,890 | 3,895 | -1.27% | 27,300 | 391億3696万 | -0.84% |
| 05/12 | 3,995 | 4,020 | 3,920 | 3,945 | +0.25% | 29,200 | 396億3936万 | +0.23% |
| 05/09 | 3,955 | 4,045 | 3,920 | 3,935 | -0.51% | 38,700 | 395億3888万 | -0.3% |
| 05/08 | 4,010 | 4,010 | 3,915 | 3,955 | -1.37% | 31,400 | 397億3984万 | -0.03% |
| 05/07 | 4,010 | 4,060 | 3,950 | 4,010 | +0.63% | 44,600 | 402億9248万 | +0.96% |
| 05/02 | 4,095 | 4,100 | 3,940 | 3,985 | -0.99% | 54,400 | 400億4128万 | -0.13% |
| 05/01 | 4,215 | 4,215 | 4,015 | 4,025 | -2.42% | 48,300 | 404億4320万 | +0.4% |
| 05/01 | （空売り報告）モルガン・スタンレーMUFG証券 70,664株（0.7%）+0.02% |
| 04/30 | 3,925 | 4,175 | 3,895 | 4,125 | +5.23% | 47,300 | 414億4800万 | +2.41% |
| 04/28 | 3,970 | 4,020 | 3,920 | 3,920 | -1.88% | 23,000 | 393億8816万 | -2.95% |
| 04/25 | 4,045 | 4,045 | 3,985 | 3,995 | +0.25% | 18,900 | 401億4176万 | -1.67% |
| 04/24 | 4,000 | 4,035 | 3,980 | 3,985 | +0.25% | 12,900 | 400億4128万 | -2.42% |
| 04/23 | 4,045 | 4,090 | 3,975 | 3,975 | -0.13% | 19,000 | 399億4080万 | -3.24% |
| 04/22 | 3,940 | 4,020 | 3,940 | 3,980 | +0.38% | 11,600 | 399億9104万 | -3.44% |
| 04/21 | 3,975 | 3,990 | 3,960 | 3,965 | +0.25% | 14,100 | 398億4032万 | -4.3% |
| 04/18 | 3,900 | 4,000 | 3,900 | 3,955 | +1.02% | 15,400 | 397億3984万 | -5.04% |
| 04/17 | 3,865 | 3,935 | 3,835 | 3,915 | +0.13% | 19,000 | 393億3792万 | -6.45% |
| 04/16 | 4,030 | 4,030 | 3,890 | 3,910 | -1.39% | 24,200 | 392億8768万 | -7.06% |
| 04/15 | 4,020 | 4,035 | 3,965 | 3,965 | +0.38% | 17,900 | 398億4032万 | -6.24% |
| 04/14 | 4,050 | 4,075 | 3,940 | 3,950 | -1.37% | 27,300 | 396億8960万 | -7.04% |
| 04/11 | 3,870 | 4,005 | 3,805 | 4,005 | +1.65% | 32,000 | 402億4224万 | -6.32% |
| 04/10 | 4,005 | 4,050 | 3,885 | 3,940 | +6.2% | 26,900 | 395億8912万 | -8.44% |
| 04/09 | 3,710 | 3,730 | 3,615 | 3,710 | -1.85% | 35,600 | 372億7808万 | -14.28% |
| 04/08 | 3,725 | 3,870 | 3,725 | 3,780 | +7.23% | 34,500 | 379億8144万 | -13.52% |
| 04/08 | （空売り報告）モルガン・スタンレーMUFG証券 69,266株（0.68%）-0.1% |
| 04/07 | 3,500 | 3,660 | 3,415 | 3,525 | -8.56% | 74,800 | 354億1920万 | -19.96% |
| 04/04 | 3,985 | 4,035 | 3,755 | 3,855 | -5.63% | 56,300 | 387億3504万 | -13.1% |
| 04/03 | 4,070 | 4,180 | 4,055 | 4,085 | -3.31% | 38,100 | 410億4608万 | -8.39% |
| 04/02 | 4,205 | 4,235 | 4,125 | 4,225 | +1.32% | 25,900 | 424億5280万 | -5.48% |
| 04/01 | 4,355 | 4,370 | 4,160 | 4,170 | -4.14% | 51,200 | 419億16万 | -6.94% |
| 03/31 | （IR情報）17:30 [開示事項の経過]CDCアクアサービス株式会社の株式取得(子会社化)完了のお知らせ |
| 03/31 | 4,450 | 4,495 | 4,320 | 4,350 | -2.25% | 43,700 | 437億880万 | -3.16% |
| 03/28 | 4,475 | 4,580 | 4,440 | 4,450 | -0.56% | 32,400 | 447億1360万 | -1.16% |
| 03/27 | （IR情報）16:00 支配株主等に関する事項について |
| 03/27 | 4,445 | 4,480 | 4,400 | 4,475 | -0.11% | 20,600 | 449億6480万 | -0.69% |
| 03/26 | 4,490 | 4,520 | 4,430 | 4,480 | +1.36% | 19,000 | 450億1504万 | -0.29% |
| 03/25 | （IR情報）16:00 CDCアクアサービス株式会社の株式の取得(子会社化)に関するお知らせ |
| 03/25 | 4,525 | 4,525 | 4,375 | 4,420 | -1.78% | 21,700 | 444億1216万 | -1.45% |
| 03/24 | 4,560 | 4,635 | 4,480 | 4,500 | -0.77% | 24,200 | 452億1600万 | +0.49% |
| 03/21 | 4,615 | 4,640 | 4,480 | 4,535 | -1.09% | 34,100 | 455億6768万 | +1.45% |
| 03/19 | 4,300 | 4,585 | 4,300 | 4,585 | +6.38% | 97,900 | 460億7008万 | +2.76% |
| 03/18 | 4,460 | 4,500 | 4,310 | 4,310 | -4.33% | 65,800 | 433億688万 | -3.1% |
| 03/17 | 4,535 | 4,570 | 4,455 | 4,505 | -0.22% | 27,300 | 452億6624万 | +1.28% |
| 03/14 | 4,440 | 4,535 | 4,300 | 4,515 | +0.89% | 42,200 | 453億6672万 | +1.96% |
| 03/14 | （空売り報告）モルガン・スタンレーMUFG証券 78,766株（0.78%）-0.02% |
| 03/13 | 4,520 | 4,645 | 4,435 | 4,475 | +0.56% | 45,700 | 449億6480万 | +1.5% |
| 03/13 | （空売り報告）モルガン・スタンレーMUFG証券 80,766株（0.8%）+0.01% |
| 03/12 | 4,415 | 4,460 | 4,320 | 4,450 | -0.22% | 36,400 | 447億1360万 | +1.57% |
| 03/11 | 4,385 | 4,460 | 4,320 | 4,460 | -0.34% | 29,100 | 448億1408万 | +2.34% |
| 03/10 | 4,610 | 4,610 | 4,455 | 4,475 | -2.4% | 33,600 | 449億6480万 | +3.18% |
| 03/07 | 4,690 | 4,690 | 4,575 | 4,585 | -2.86% | 34,800 | 460億7008万 | +6.41% |
| 03/06 | 4,570 | 4,720 | 4,525 | 4,720 | +3.28% | 53,200 | 474億2656万 | +10.69% |
| 03/05 | 4,725 | 4,815 | 4,565 | 4,570 | -4.09% | 85,100 | 459億1936万 | +8.53% |
| 03/04 | 4,640 | 4,780 | 4,580 | 4,765 | +3.25% | 110,500 | 478億7872万 | +14.49% |
| 03/03 | 4,450 | 4,640 | 4,450 | 4,615 | +6.83% | 93,500 | 463億7152万 | +12.51% |
| 02/28 | 4,325 | 4,420 | 4,240 | 4,320 | -2.81% | 54,600 | 434億736万 | +6.75% |
| 02/28 | （空売り報告）モルガン・スタンレーMUFG証券 80,366株（0.79%）-0.09% |
| 02/27 | 4,300 | 4,445 | 4,280 | 4,445 | +1.95% | 44,600 | 446億6336万 | +10.93% |
| 02/26 | 4,520 | 4,520 | 4,300 | 4,360 | -2.9% | 45,400 | 438億928万 | +10.05% |
| 02/25 | 4,385 | 4,520 | 4,360 | 4,490 | +1.01% | 60,900 | 451億1552万 | +14.48% |
| 02/21 | 4,680 | 4,680 | 4,375 | 4,445 | -3.58% | 132,400 | 446億6336万 | +14.8% |
| 02/20 | 4,490 | 4,645 | 4,390 | 4,610 | +1.32% | 145,900 | 463億2128万 | +20.46% |
| 02/19 | 4,290 | 4,550 | 4,270 | 4,550 | +9.64% | 253,600 | 457億1840万 | +20.47% |
| 02/19 | （空売り報告）モルガン・スタンレーMUFG証券 89,166株（0.88%）+0.17% |
| 02/19 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 35,200株（0.35%）-0.2%義務消失 |
| 02/18 | 4,260 | 4,280 | 4,065 | 4,150 | -2.58% | 112,100 | 416億9920万 | +11.53% |
| 02/18 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 55,500株（0.55%）-0.07% |
| 02/17 | 4,115 | 4,440 | 4,100 | 4,260 | +0.12% | 109,800 | 428億448万 | +15.67% |
| 02/17 | （空売り報告）モルガン・スタンレーMUFG証券 71,466株（0.71%）+0.08% |
| 02/17 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 62,300株（0.62%）-0.19% |
| 02/14 | （IR情報）16:00 剰余金の配当及び次期配当予想(増配)に関するお知らせ |
| 02/14 | （IR情報）16:00 2024年12月期決算短信[日本基準](連結) |
| 02/14 | 4,190 | 4,255 | 4,100 | 4,255 | -0.93% | 74,500 | 427億5424万 | +16.74% |
| 02/14 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 81,600株（0.81%）+0.07% |
| 02/13 | 4,490 | 4,530 | 4,260 | 4,295 | -1.26% | 104,300 | 431億5616万 | +19.01% |
| 02/12 | 4,460 | 4,515 | 4,290 | 4,350 | +3.08% | 125,700 | 437億880万 | +21.58% |
| 02/12 | （空売り報告）モルガン・スタンレーMUFG証券 63,366株（0.63%）新規 |
| 02/10 | 4,450 | 4,535 | 4,200 | 4,220 | -2.09% | 140,100 | 424億256万 | +19.11% |
| 02/07 | 4,100 | 4,390 | 4,100 | 4,310 | +7.62% | 158,800 | 433億688万 | +22.55% |
| 02/06 | 4,045 | 4,075 | 3,945 | 4,005 | -0.74% | 46,700 | 402億4224万 | +14.79% |
| 02/05 | 3,800 | 4,080 | 3,800 | 4,035 | +6.75% | 87,700 | 405億4368万 | +16.05% |
| 02/04 | 3,885 | 3,890 | 3,775 | 3,780 | -2.45% | 51,300 | 379億8144万 | +9% |
| 02/03 | 4,000 | 4,000 | 3,835 | 3,875 | -1.77% | 112,600 | 389億3600万 | +11.74% |
| 02/03 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 75,100株（0.74%）+0.05% |
| 01/31 | 4,000 | 4,160 | 3,905 | 3,945 | +4.37% | 227,100 | 396億3936万 | +13.95% |
| 01/30 | 3,795 | 3,845 | 3,615 | 3,780 | +9.72% | 253,600 | 379億8144万 | +9.5% |
| 01/30 | （空売り報告）Diversified Select Opportunities, LLC 68,100株（0.67%）+0.15% |
| 01/30 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 69,600株（0.69%）-0.02% |
| 01/29 | 3,500 | 3,520 | 3,420 | 3,445 | +1.47% | 22,500 | 346億1536万 | +0.03% |
| 01/28 | （IR情報）19:00 オーストラリア現地法人の設立に関するお知らせ |
| 01/28 | （IR情報）19:00 執行役員の異動に関するお知らせ |
| 01/28 | 3,345 | 3,400 | 3,345 | 3,395 | +1.34% | 7,200 | 341億1296万 | -1.68% |
| 01/27 | 3,330 | 3,360 | 3,300 | 3,350 | +2.45% | 9,500 | 336億6080万 | -3.37% |
| 01/24 | 3,250 | 3,290 | 3,250 | 3,270 | +0.77% | 4,100 | 328億5696万 | -5.9% |
| 01/23 | 3,285 | 3,305 | 3,225 | 3,245 | -1.67% | 7,700 | 326億576万 | -6.89% |
| 01/22 | 3,360 | 3,360 | 3,290 | 3,300 | -0.6% | 6,300 | 331億5840万 | -5.66% |
| 01/21 | 3,365 | 3,380 | 3,305 | 3,320 | -1.34% | 9,300 | 333億5936万 | -5.36% |
| 01/20 | 3,315 | 3,365 | 3,285 | 3,365 | +3.38% | 5,800 | 338億1152万 | -4.29% |
| 01/17 | 3,320 | 3,320 | 3,225 | 3,255 | -1.51% | 11,400 | 327億624万 | -7.63% |
| 01/16 | 3,390 | 3,400 | 3,305 | 3,305 | -1.64% | 12,400 | 332億864万 | -6.64% |
| 01/15 | 3,235 | 3,485 | 3,235 | 3,360 | +6.16% | 37,500 | 337億6128万 | -5.43% |
| 01/14 | 3,180 | 3,240 | 3,155 | 3,165 | -0.94% | 14,100 | 318億192万 | -11.17% |
| 01/10 | 3,305 | 3,330 | 3,195 | 3,195 | -3.18% | 14,800 | 321億336万 | -10.9% |
| 01/09 | 3,370 | 3,390 | 3,300 | 3,300 | -2.08% | 13,300 | 331億5840万 | -8.49% |
| 01/09 | （空売り報告）Diversified Select Opportunities, LLC 52,700株（0.52%）新規 |
| 01/08 | 3,475 | 3,490 | 3,350 | 3,370 | -4.13% | 15,600 | 338億6176万 | -6.93% |
| 01/07 | 3,495 | 3,535 | 3,460 | 3,515 | +1.59% | 13,400 | 353億1872万 | -3.17% |
| 01/07 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 72,300株（0.71%）+0.11% |
| 01/06 | 3,605 | 3,605 | 3,460 | 3,460 | -3.22% | 19,300 | 347億6608万 | -4.71% |
| 2024 |
| 12/30 | 3,610 | 3,625 | 3,540 | 3,575 | -1.38% | 12,500 | 359億2160万 | -1.65% |
| 12/27 | 3,630 | 3,685 | 3,610 | 3,625 | -2.03% | 51,300 | 364億2400万 | -0.33% |
| 12/26 | 3,655 | 3,745 | 3,655 | 3,700 | -2.5% | 92,200 | 371億7760万 | +1.7% |
| 12/25 | 3,770 | 3,855 | 3,705 | 3,795 | +0.13% | 41,600 | 381億3216万 | +4.37% |
| 12/24 | 3,775 | 3,835 | 3,775 | 3,790 | +1.88% | 27,300 | 380億8192万 | +4.52% |
| 12/23 | 3,745 | 3,745 | 3,700 | 3,720 | +0.54% | 9,200 | 373億7856万 | +2.82% |
| 12/20 | 3,630 | 3,805 | 3,630 | 3,700 | +3.64% | 22,000 | 371億7760万 | +2.46% |
| 12/20 | （空売り報告）GOLDMAN SACHS INTERNATIONAL 60,900株（0.6%）+0.07% |
| 12/19 | 3,660 | 3,660 | 3,560 | 3,570 | -2.99% | 16,800 | 358億7136万 | -1% |
| 12/18 | 3,705 | 3,805 | 3,680 | 3,680 | -1.47% | 25,500 | 369億7664万 | +1.88% |
| 12/17 | 3,685 | 3,810 | 3,670 | 3,735 | +4.92% | 60,000 | 375億2928万 | +3.38% |
| 12/16 | 3,520 | 3,600 | 3,510 | 3,560 | +0.85% | 30,700 | 357億7088万 | -1.41% |
| 12/13 | 3,515 | 3,560 | 3,515 | 3,530 | -0.7% | 12,000 | 354億6944万 | -2.46% |
| 12/12 | 3,575 | 3,595 | 3,540 | 3,555 | 0% | 11,400 | 357億2064万 | -2.15% |
| 12/11 | 3,515 | 3,585 | 3,510 | 3,555 | +0.85% | 10,500 | 357億2064万 | -2.68% |
