| 2026 |
| 07/08 | 6,320 | 7,040 | 6,220 | 6,720 | +1.51% | 259,800 | 1435億3920万 | -18.42% |
| 07/07 | 6,610 | 7,150 | 6,480 | 6,620 | -2.79% | 312,200 | 1414億320万 | -19.85% |
| 07/06 | 8,200 | 8,670 | 6,810 | 6,810 | -15.51% | 313,800 | 1454億6160万 | -17.59% |
| 07/03 | 7,640 | 8,060 | 7,230 | 8,060 | -2.18% | 321,900 | 1721億6160万 | -2.48% |
| 07/02 | 9,440 | 9,490 | 8,240 | 8,240 | -15.4% | 210,200 | 1760億640万 | +0.29% |
| 07/01 | 10,200 | 10,300 | 9,450 | 9,740 | -1.22% | 93,200 | 2080億4640万 | +19.57% |
| 06/30 | (IR情報)15:30 (開示事項の変更)貯水機能付給水管「マルチアクア」に関する技術供与のお知らせ |
| 06/30 | 10,170 | 10,250 | 9,710 | 9,860 | -2.95% | 100,100 | 2106億960万 | +22.77% |
| 06/29 | 9,270 | 10,160 | 8,680 | 10,160 | +11.04% | 244,900 | 2170億1760万 | +28.12% |
| 06/26 | 9,530 | 9,670 | 8,800 | 9,150 | -6.92% | 141,700 | 1954億4400万 | +17.19% |
| 06/25 | 9,740 | 10,300 | 9,480 | 9,830 | +5.36% | 169,800 | 2099億6880万 | +27.6% |
| 06/24 | 9,560 | 10,290 | 9,030 | 9,330 | -3.22% | 234,000 | 1992億8880万 | +23.27% |
| 06/23 | 10,540 | 10,740 | 9,380 | 9,640 | -8.54% | 310,300 | 2059億1040万 | +29.57% |
| 06/22 | 9,340 | 10,540 | 9,340 | 10,540 | +16.59% | 219,000 | 2251億3440万 | +44.38% |
| 06/19 | 9,110 | 9,590 | 8,840 | 9,040 | +3.43% | 210,900 | 1930億9440万 | +26.88% |
| 06/18 | 7,790 | 9,140 | 7,700 | 8,740 | +13.8% | 216,300 | 1866億8640万 | +24.98% |
| 06/17 | 7,080 | 7,700 | 7,050 | 7,680 | +7.11% | 87,200 | 1640億4480万 | +11.56% |
| 06/16 | 7,480 | 7,540 | 7,090 | 7,170 | -3.24% | 74,600 | 1531億5120万 | +5.66% |
| 06/15 | 7,210 | 7,470 | 7,030 | 7,410 | +7.55% | 98,500 | 1582億7760万 | +10.45% |
| 06/12 | 7,220 | 7,340 | 6,820 | 6,890 | -2.13% | 141,100 | 1471億7040万 | +3.98% |
| 06/11 | 6,950 | 7,290 | 6,810 | 7,040 | -2.49% | 146,800 | 1503億7440万 | +7.27% |
| 06/10 | 7,210 | 7,450 | 7,000 | 7,220 | -1.23% | 105,800 | 1542億1920万 | +11.25% |
| 06/09 | 7,420 | 7,500 | 7,060 | 7,310 | +0.97% | 94,800 | 1561億4160万 | +14.29% |
| 06/08 | 6,840 | 7,420 | 6,700 | 7,240 | -3.98% | 175,800 | 1546億4640万 | +15.01% |
| 06/05 | 7,870 | 7,890 | 7,250 | 7,540 | -5.04% | 107,300 | 1610億5440万 | +22.01% |
| 06/04 | 7,230 | 7,940 | 7,230 | 7,940 | +8.62% | 172,100 | 1695億9840万 | +31.26% |
| 06/03 | 6,800 | 7,380 | 6,770 | 7,310 | +8.78% | 160,200 | 1561億4160万 | +23.79% |
| 06/02 | 6,730 | 6,830 | 6,390 | 6,720 | -1.61% | 103,600 | 1435億3920万 | +16.2% |
| 06/01 | 6,930 | 7,230 | 6,740 | 6,830 | 0% | 139,100 | 1458億8880万 | +20.16% |
| 05/29 | 6,640 | 7,080 | 6,580 | 6,830 | +5.08% | 143,200 | 1458億8880万 | +22.42% |
| 05/28 | 6,700 | 6,710 | 6,290 | 6,500 | -5.11% | 240,900 | 1388億4000万 | +18.94% |
| 05/27 | 7,320 | 7,520 | 6,800 | 6,850 | -6.55% | 253,200 | 1463億1600万 | +27.8% |
| 05/26 | 7,080 | 7,380 | 6,900 | 7,330 | +2.81% | 180,000 | 1565億6880万 | +40.34% |
| 05/25 | 6,530 | 7,270 | 6,530 | 7,130 | +9.19% | 198,200 | 1522億9680万 | +41.27% |
| 05/22 | 6,370 | 6,610 | 6,210 | 6,530 | +0.93% | 153,200 | 1394億8080万 | +33.87% |
| 05/21 | 6,390 | 6,730 | 6,370 | 6,470 | +5.89% | 232,200 | 1381億9920万 | +36.79% |
| 05/21 | (空売り報告)Nomura International plc 103,800株(0.48%)-0.09%義務消失 |
| 05/20 | 6,120 | 6,270 | 5,780 | 6,110 | -0.33% | 183,000 | 1305億960万 | +33.23% |
| 05/19 | 6,260 | 6,600 | 6,090 | 6,130 | -0.65% | 285,100 | 1309億3680万 | +37.66% |
| 05/19 | (空売り報告)Nomura International plc 123,800株(0.57%)再IN |
| 05/18 | 5,700 | 6,200 | 5,640 | 6,170 | +7.49% | 409,000 | 1317億9120万 | +42.96% |
| 05/15 | 6,100 | 6,290 | 5,660 | 5,740 | -4.33% | 300,600 | 1226億640万 | +37.58% |
| 05/14 | 6,220 | 6,230 | 5,770 | 6,000 | +14.72% | 465,700 | 1281億6000万 | +48.37% |
| 05/13 | (IR情報)16:30 2026年12月期第1四半期決算補足資料 |
| 05/13 | (IR情報)16:30 2026年12月期第1四半期決算短信〔日本基準〕(連結) |
| 05/13 | 5,170 | 5,350 | 5,070 | 5,230 | -0.57% | 107,100 | 1117億1280万 | +33.93% |
| 05/12 | 5,370 | 5,500 | 5,240 | 5,260 | -1.31% | 108,000 | 1123億5360万 | +38.57% |
| 05/11 | (5%ルール)前島岳(1.42%)ティーエムアセット(51.97%) |
| 05/11 | 5,340 | 5,490 | 5,290 | 5,330 | +0.19% | 131,900 | 1138億4880万 | +44.56% |
| 05/08 | 5,200 | 5,410 | 5,200 | 5,320 | +1.92% | 114,700 | 1136億3520万 | +48.94% |
| 05/07 | 5,000 | 5,250 | 4,900 | 5,220 | +7.41% | 143,100 | 1114億9920万 | +50.87% |
| 05/01 | 4,780 | 4,925 | 4,745 | 4,860 | +1.57% | 128,900 | 1038億960万 | +44.86% |
| 04/30 | 4,370 | 4,875 | 4,365 | 4,785 | +9.5% | 337,400 | 1022億760万 | +46.55% |
| 04/28 | 4,260 | 4,375 | 4,205 | 4,370 | +2.58% | 101,700 | 933億4320万 | +37.29% |
| 04/27 | 4,350 | 4,385 | 4,215 | 4,260 | -2.07% | 86,700 | 909億9360万 | +36.8% |
| 04/27 | (空売り報告)Nomura International plc 102,057株(0.47%)-0.04%義務消失 |
| 04/24 | 4,290 | 4,440 | 4,250 | 4,350 | +2.11% | 123,600 | 929億1600万 | +42.72% |
| 04/24 | (空売り報告)Nomura International plc 109,060株(0.51%)再IN |
| 04/23 | 4,230 | 4,335 | 4,210 | 4,260 | +0.71% | 120,800 | 909億9360万 | +42.81% |
| 04/23 | (空売り報告)Nomura International plc 104,860株(0.49%)-0.01%義務消失 |
| 04/22 | 4,140 | 4,240 | 4,060 | 4,230 | +0.48% | 112,400 | 903億5280万 | +44.57% |
| 04/22 | (空売り報告)Nomura International plc 107,128株(0.5%)再IN |
| 04/21 | 3,995 | 4,295 | 3,975 | 4,210 | +6.05% | 273,800 | 899億2560万 | +46.95% |
| 04/21 | (空売り報告)Nomura International plc 104,128株(0.48%)-0.02%義務消失 |
| 04/20 | 3,810 | 4,075 | 3,810 | 3,970 | +2.32% | 274,500 | 847億9920万 | +41.74% |
| 04/17 | 3,850 | 4,130 | 3,810 | 3,880 | +13.12% | 1,097,000 | 828億7680万 | +41.5% |
| 04/17 | (空売り報告)Nomura International plc 107,228株(0.5%)新規 |
| 04/16 | 3,430 | 3,430 | 3,430 | 3,430 | +17.18% | 28,500 | 732億6480万 | +27.6% |
| 04/15 | (IR情報)15:30 業績予想の修正に関するお知らせ |
| 04/15 | 2,978 | 3,010 | 2,897 | 2,927 | +0.41% | 110,900 | 625億2072万 | +10.33% |
| 04/14 | 2,877 | 2,915 | 2,774 | 2,915 | +3.11% | 211,900 | 622億6440万 | +10.71% |
| 04/13 | 2,845 | 2,928 | 2,800 | 2,827 | -1.7% | 74,700 | 603億8472万 | +8.4% |
| 04/10 | 2,826 | 2,903 | 2,826 | 2,876 | +3.56% | 113,400 | 614億3136万 | +10.87% |
| 04/09 | 2,708 | 2,789 | 2,700 | 2,777 | +2.89% | 95,200 | 593億1672万 | +7.68% |
| 04/08 | 2,680 | 2,700 | 2,636 | 2,699 | +4.37% | 48,700 | 576億5064万 | +5.35% |
| 04/07 | 2,524 | 2,596 | 2,524 | 2,586 | +2.46% | 63,300 | 552億3696万 | +1.13% |
| 04/06 | 2,522 | 2,558 | 2,520 | 2,524 | +0.08% | 27,000 | 539億1264万 | -1.17% |
| 04/03 | 2,511 | 2,548 | 2,505 | 2,522 | +0.8% | 43,300 | 538億6992万 | -1.29% |
| 04/02 | 2,565 | 2,624 | 2,502 | 2,502 | -1.92% | 78,000 | 534億4272万 | -1.92% |
| 04/01 | 2,550 | 2,558 | 2,503 | 2,551 | +4.12% | 38,400 | 544億8936万 | +0.08% |
| 03/31 | 2,441 | 2,497 | 2,420 | 2,450 | -2.55% | 61,300 | 523億3200万 | -3.73% |
| 03/30 | 2,495 | 2,522 | 2,443 | 2,514 | -3.46% | 72,400 | 536億9904万 | -1.22% |
| 03/27 | 2,571 | 2,633 | 2,557 | 2,604 | -0.31% | 55,200 | 556億2144万 | +2.36% |
| 03/26 | 2,759 | 2,795 | 2,591 | 2,612 | -4.5% | 90,200 | 557億9232万 | +2.92% |
| 03/25 | 2,693 | 2,757 | 2,690 | 2,735 | +3.32% | 66,700 | 584億1960万 | +8.19% |
| 03/24 | 2,699 | 2,703 | 2,620 | 2,647 | +1.85% | 75,600 | 565億3992万 | +5.46% |
| 03/23 | 2,632 | 2,632 | 2,567 | 2,599 | -4.87% | 108,500 | 555億1464万 | +4.08% |
| 03/19 | 2,766 | 2,804 | 2,722 | 2,732 | -3.09% | 104,500 | 583億5552万 | +9.67% |
| 03/18 | 2,742 | 2,838 | 2,737 | 2,819 | +3.72% | 139,900 | 602億1384万 | +13.99% |
| 03/17 | 2,730 | 2,768 | 2,700 | 2,718 | +4.62% | 119,500 | 580億5648万 | +11.07% |
| 03/16 | 2,500 | 2,598 | 2,489 | 2,598 | +3.38% | 94,300 | 554億9328万 | +7.27% |
| 03/13 | 2,484 | 2,564 | 2,481 | 2,513 | -0.83% | 78,500 | 536億7768万 | +4.53% |
| 03/12 | 2,505 | 2,575 | 2,495 | 2,534 | +0.08% | 98,400 | 541億2624万 | +6.11% |
| 03/11 | 2,434 | 2,554 | 2,434 | 2,532 | +3.86% | 74,600 | 540億8352万 | +6.84% |
| 03/10 | 2,390 | 2,458 | 2,361 | 2,438 | +6.46% | 76,500 | 520億7568万 | +3.74% |
| 03/09 | (IR情報)15:30 (開示事項の経過)北海道第工場(仮称)の建設に係る工事契約締結のお知らせ |
| 03/09 | 2,281 | 2,328 | 2,236 | 2,290 | -7.51% | 108,600 | 489億1440万 | -1.89% |
| 03/06 | 2,441 | 2,483 | 2,411 | 2,476 | -0.6% | 54,600 | 528億8736万 | +6.45% |
| 03/05 | 2,474 | 2,519 | 2,430 | 2,491 | +4.93% | 78,300 | 532億776万 | +7.79% |
| 03/04 | 2,459 | 2,465 | 2,271 | 2,374 | -7.23% | 167,700 | 507億864万 | +3.17% |
| 03/03 | 2,482 | 2,631 | 2,482 | 2,559 | +1.83% | 189,000 | 546億6024万 | +11.41% |
| 03/02 | 2,491 | 2,542 | 2,456 | 2,513 | -1.1% | 80,800 | 536億7768万 | +9.83% |
| 02/27 | 2,438 | 2,542 | 2,438 | 2,541 | +4.22% | 78,300 | 542億7576万 | +11.45% |
| 02/26 | 2,453 | 2,485 | 2,425 | 2,438 | -0.37% | 63,800 | 520億7568万 | +7.4% |
| 02/25 | (IR情報)15:30 剰余金の配当に関するお知らせ |
| 02/25 | 2,459 | 2,489 | 2,445 | 2,447 | 0% | 53,300 | 522億6792万 | +8.04% |
| 02/24 | 2,474 | 2,474 | 2,367 | 2,447 | -0.41% | 83,500 | 522億6792万 | +8.32% |
| 02/20 | 2,447 | 2,501 | 2,422 | 2,457 | -1.6% | 50,500 | 524億8152万 | +9.01% |
| 02/19 | 2,451 | 2,497 | 2,403 | 2,497 | +2.46% | 71,400 | 533億3592万 | +11.03% |
| 02/18 | 2,379 | 2,437 | 2,368 | 2,437 | +3.22% | 51,500 | 520億5432万 | +8.65% |
| 02/17 | 2,304 | 2,389 | 2,286 | 2,361 | +2.65% | 73,100 | 504億3096万 | +5.54% |
| 02/16 | 2,306 | 2,325 | 2,230 | 2,300 | -0.26% | 92,400 | 491億2800万 | +3% |
| 02/13 | 2,418 | 2,477 | 2,284 | 2,306 | -5.99% | 243,100 | 492億5616万 | +3.5% |
| 02/12 | 2,186 | 2,456 | 2,183 | 2,453 | +7.31% | 384,400 | 523億9608万 | +10.25% |
| 02/10 | (IR情報)15:30 2025年12月期決算補足資料 |
| 02/10 | (IR情報)15:30 2025年12月期決算短信〔日本基準〕(連結) |
| 02/10 | 2,200 | 2,290 | 2,194 | 2,286 | +5.88% | 182,000 | 488億2896万 | +3.16% |
| 02/09 | (IR情報)15:30 支配株主等に関する事項について |
| 02/09 | (IR情報)15:30 2025年12月期(第25期)配当予想の修正(増配)に関するお知らせ |