| 2024 |
| 04/18 | 3,065 | 3,075 | 3,030 | 3,075 | +1.65% | 12,400 | 381億7572万 | -1.54% |
| 04/17 | 3,070 | 3,090 | 3,025 | 3,025 | -1.14% | 16,700 | 375億5498万 | -3.14% |
| 04/16 | 3,110 | 3,130 | 3,060 | 3,060 | -2.86% | 20,600 | 379億8950万 | -2.08% |
| 04/15 | 3,105 | 3,160 | 3,100 | 3,150 | +0.16% | 7,400 | 391億684万 | +0.83% |
| 04/12 | 3,185 | 3,185 | 3,135 | 3,145 | -1.1% | 14,200 | 390億4476万 | +0.7% |
| 04/11 | 3,135 | 3,200 | 3,130 | 3,180 | +0.63% | 14,900 | 394億7928万 | +1.89% |
| 04/11 | （空売り報告）J.P. MORGAN SECURITIES PLC 66,646株（0.53%）再IN |
| 04/10 | 3,135 | 3,195 | 3,135 | 3,160 | +0.32% | 10,600 | 392億3098万 | +1.28% |
| 04/09 | 3,140 | 3,165 | 3,125 | 3,150 | +0.64% | 9,300 | 391億684万 | +0.96% |
| 04/08 | （IR情報）15:00 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 |
| 04/08 | 3,100 | 3,140 | 3,090 | 3,130 | +1.46% | 19,100 | 388億5854万 | +0.35% |
| 04/05 | 3,065 | 3,085 | 3,035 | 3,085 | 0% | 20,200 | 382億9987万 | -1.19% |
| 04/04 | 3,100 | 3,115 | 3,070 | 3,085 | -0.48% | 19,500 | 382億9987万 | -1.41% |
| 04/03 | 3,060 | 3,120 | 3,045 | 3,100 | +0.98% | 22,400 | 384億8609万 | -1.12% |
| 04/02 | 3,120 | 3,130 | 3,070 | 3,070 | -2.07% | 24,700 | 381億1365万 | -2.14% |
| 04/01 | 3,200 | 3,200 | 3,125 | 3,135 | 0% | 60,900 | 389億2061万 | -0.1% |
| 03/29 | 3,110 | 3,150 | 3,075 | 3,135 | +1.62% | 29,300 | 389億2061万 | -0.16% |
| 03/28 | 3,150 | 3,150 | 3,070 | 3,085 | -2.06% | 31,100 | 382億9987万 | -1.72% |
| 03/27 | 3,165 | 3,190 | 3,135 | 3,150 | -0.16% | 22,400 | 391億684万 | +0.22% |
| 03/26 | 3,160 | 3,185 | 3,140 | 3,155 | -0.16% | 16,600 | 391億6891万 | +0.41% |
| 03/25 | 3,155 | 3,185 | 3,145 | 3,160 | -0.32% | 21,600 | 392億3098万 | +0.7% |
| 03/22 | （IR情報）15:30 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 |
| 03/22 | 3,225 | 3,225 | 3,160 | 3,170 | -0.94% | 24,700 | 393億5513万 | +1.08% |
| 03/21 | 3,200 | 3,225 | 3,170 | 3,200 | +1.27% | 22,100 | 397億2758万 | +2.01% |
| 03/19 | 3,120 | 3,175 | 3,120 | 3,160 | +1.44% | 20,100 | 392億3098万 | +1.02% |
| 03/18 | 3,150 | 3,150 | 3,105 | 3,115 | -0.16% | 19,800 | 386億7232万 | -0.1% |
| 03/15 | 3,060 | 3,125 | 3,050 | 3,120 | +1.3% | 38,400 | 387億3439万 | +0.29% |
| 03/14 | 3,080 | 3,100 | 3,050 | 3,080 | +0.49% | 22,500 | 382億3779万 | -0.84% |
| 03/13 | 3,110 | 3,125 | 3,050 | 3,065 | -0.81% | 22,700 | 380億5157万 | -1.16% |
| 03/13 | （空売り報告）J.P. MORGAN SECURITIES PLC 2,646株（0.02%）-0.5%義務消失 |
| 03/12 | 3,035 | 3,095 | 3,005 | 3,090 | +1.81% | 32,100 | 383億6194万 | -0.19% |
| 03/11 | 3,055 | 3,085 | 3,005 | 3,035 | -2.41% | 27,700 | 376億7913万 | -1.78% |
| 03/08 | 3,055 | 3,145 | 3,050 | 3,110 | +0.32% | 42,900 | 386億1024万 | +0.81% |
| 03/08 | （空売り報告）J.P. MORGAN SECURITIES PLC 65,646株（0.52%）新規 |
| 03/07 | 3,160 | 3,170 | 3,100 | 3,100 | -2.05% | 35,200 | 384億8609万 | +0.81% |
| 03/06 | 3,145 | 3,180 | 3,140 | 3,165 | +0.8% | 28,600 | 392億9306万 | +3.4% |
| 03/05 | 3,100 | 3,150 | 3,090 | 3,140 | +0.48% | 41,800 | 389億8269万 | +3.29% |
| 03/04 | 3,200 | 3,255 | 3,125 | 3,125 | -2.8% | 44,700 | 387億9646万 | +3.51% |
| 03/01 | 3,280 | 3,320 | 3,200 | 3,215 | -1.08% | 55,800 | 399億1380万 | +7.24% |
| 02/29 | 3,250 | 3,300 | 3,235 | 3,250 | +0.46% | 71,200 | 403億4832万 | +9.35% |
| 02/28 | （5%ルール）住化カラー（0.32%）住友化学（5.43%） |
| 02/28 | 3,165 | 3,245 | 3,160 | 3,235 | +2.54% | 50,200 | 401億6210万 | +9.85% |
| 02/27 | 3,145 | 3,220 | 3,135 | 3,155 | +1.77% | 69,400 | 391億6891万 | +8.12% |
| 02/26 | 3,150 | 3,150 | 3,085 | 3,100 | -2.67% | 51,500 | 384億8609万 | +7.19% |
| 02/22 | 3,145 | 3,185 | 3,125 | 3,185 | +2.41% | 42,200 | 395億4136万 | +11.01% |
| 02/21 | 3,140 | 3,165 | 3,060 | 3,110 | -2.2% | 199,200 | 386億1024万 | +9.43% |
| 02/20 | （IR情報）10:00 2023年12月期決算説明資料 |
| 02/20 | 3,150 | 3,205 | 3,150 | 3,180 | +1.44% | 44,800 | 394億7928万 | +12.81% |
| 02/19 | 3,055 | 3,135 | 3,045 | 3,135 | +2.62% | 49,600 | 389億2061万 | +12.24% |
| 02/16 | 3,090 | 3,120 | 3,040 | 3,055 | -1.45% | 55,400 | 379億2742万 | +10.37% |
| 02/15 | 3,215 | 3,245 | 3,080 | 3,100 | -3.43% | 112,300 | 384億8609万 | +12.81% |
| 02/14 | 3,275 | 3,285 | 3,160 | 3,210 | +7.83% | 166,100 | 398億5173万 | +17.71% |
| 02/13 | （IR情報）15:00 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ついて |
| 02/13 | （IR情報）15:00 役員の異動に関するお知らせ |
| 02/13 | （IR情報）15:00 2023年12月期決算短信〔日本基準〕(連結) |
| 02/13 | 2,900 | 2,988 | 2,900 | 2,977 | +2.8% | 62,700 | 369億5906万 | +10.18% |
| 02/09 | 2,919 | 2,938 | 2,894 | 2,896 | -1.6% | 78,100 | 359億5346万 | +7.86% |
| 02/08 | 2,999 | 2,999 | 2,890 | 2,943 | -1.9% | 97,000 | 365億3696万 | +10.18% |
| 02/07 | 2,950 | 3,015 | 2,936 | 3,000 | +1.52% | 57,500 | 372億4461万 | +12.95% |
| 02/06 | 2,946 | 2,978 | 2,940 | 2,955 | +0.31% | 73,000 | 366億8594万 | +12.06% |
| 02/05 | 2,935 | 2,964 | 2,931 | 2,946 | +0.89% | 62,800 | 365億7420万 | +12.27% |
| 02/02 | 2,910 | 2,920 | 2,825 | 2,920 | +0.1% | 86,900 | 362億5142万 | +11.83% |
| 02/01 | 2,840 | 2,922 | 2,826 | 2,917 | +1.92% | 97,700 | 362億1417万 | +12.15% |
| 01/31 | 2,747 | 2,862 | 2,747 | 2,862 | +4.19% | 182,300 | 355億3135万 | +10.46% |
| 01/30 | 2,760 | 2,785 | 2,714 | 2,747 | +3.93% | 290,100 | 341億364万 | +6.35% |
| 01/29 | （IR情報）15:00 業績予想の修正および配当予想の修正に関するお知らせ |
| 01/29 | 2,607 | 2,663 | 2,607 | 2,643 | +1.38% | 68,700 | 328億1250万 | +2.4% |
| 01/26 | 2,610 | 2,639 | 2,605 | 2,607 | -0.08% | 65,700 | 323億6556万 | +0.97% |
| 01/25 | 2,573 | 2,609 | 2,563 | 2,609 | +1.4% | 68,800 | 323億9039万 | +0.97% |
| 01/24 | 2,567 | 2,585 | 2,565 | 2,573 | +0.19% | 41,300 | 319億4346万 | -0.58% |
| 01/23 | 2,560 | 2,569 | 2,550 | 2,568 | +0.63% | 38,200 | 318億8138万 | -0.89% |
| 01/22 | 2,540 | 2,552 | 2,532 | 2,552 | +1.51% | 53,700 | 316億8274万 | -1.73% |
| 01/19 | 2,522 | 2,522 | 2,501 | 2,514 | -0.32% | 43,300 | 312億1098万 | -3.34% |
| 01/18 | 2,501 | 2,524 | 2,501 | 2,522 | +0.8% | 24,200 | 313億1030万 | -3.33% |
| 01/17 | 2,522 | 2,536 | 2,502 | 2,502 | -1.3% | 55,700 | 310億6200万 | -4.32% |
| 01/16 | 2,534 | 2,547 | 2,515 | 2,535 | -0.28% | 37,800 | 314億7169万 | -3.39% |
| 01/15 | 2,500 | 2,549 | 2,500 | 2,542 | +1.68% | 46,800 | 315億5859万 | -3.42% |
| 01/12 | 2,572 | 2,577 | 2,500 | 2,500 | -2.8% | 77,700 | 310億3717万 | -5.27% |
| 01/11 | 2,575 | 2,592 | 2,570 | 2,572 | -0.04% | 49,700 | 319億3104万 | -2.94% |
| 01/10 | 2,575 | 2,587 | 2,558 | 2,573 | -0.08% | 43,200 | 319億4346万 | -3.23% |
| 01/09 | 2,553 | 2,579 | 2,541 | 2,575 | +1.3% | 57,800 | 319億6829万 | -3.52% |
| 01/05 | （5%ルール）住化カラー（0.32%）住友化学（6.6%） |
| 01/05 | 2,580 | 2,584 | 2,540 | 2,542 | -0.9% | 57,600 | 315億5859万 | -5.11% |
| 01/04 | 2,565 | 2,574 | 2,536 | 2,565 | +0.47% | 67,300 | 318億4414万 | -4.68% |
| 2023 |
| 12/29 | 2,523 | 2,561 | 2,523 | 2,553 | +1.23% | 60,600 | 316億9516万 | -5.48% |
| 12/28 | 2,520 | 2,552 | 2,515 | 2,522 | -4.25% | 126,400 | 313億1030万 | -6.94% |
| 12/27 | 2,630 | 2,645 | 2,596 | 2,634 | -0.04% | 267,800 | 327億76万 | -3.16% |
| 12/26 | 2,660 | 2,661 | 2,621 | 2,635 | -1.13% | 118,600 | 327億1318万 | -3.27% |
| 12/26 | （空売り報告）野村證券 0株（0%）-0.52%義務消失 |
| 12/25 | 2,692 | 2,694 | 2,662 | 2,665 | -0.15% | 80,000 | 330億8562万 | -2.31% |
| 12/25 | （空売り報告）野村證券 65,622株（0.52%）新規 |
| 12/22 | 2,670 | 2,683 | 2,643 | 2,669 | +0.34% | 92,000 | 331億3528万 | -2.31% |
| 12/21 | 2,669 | 2,684 | 2,657 | 2,660 | -0.82% | 54,800 | 330億2355万 | -2.74% |
| 12/20 | 2,682 | 2,699 | 2,679 | 2,682 | +0.19% | 35,100 | 332億9668万 | -1.94% |
| 12/19 | 2,668 | 2,684 | 2,640 | 2,677 | +0.34% | 71,800 | 332億3460万 | -2.19% |
| 12/18 | 2,675 | 2,676 | 2,638 | 2,668 | -0.74% | 49,600 | 331億2287万 | -2.59% |
| 12/15 | （IR情報）15:00 香川県産材や四国地域材を活用した木質構造材料の製造事業の開始に関するお知らせ |
| 12/15 | 2,655 | 2,688 | 2,655 | 2,688 | +0.94% | 79,500 | 333億7117万 | -1.93% |
| 12/14 | 2,697 | 2,713 | 2,653 | 2,663 | -2.17% | 104,700 | 330億6079万 | -2.85% |
| 12/13 | 2,736 | 2,748 | 2,699 | 2,722 | +2.52% | 106,100 | 337億9327万 | -0.66% |
| 12/12 | （IR情報）15:00 配当予想の修正に関するお知らせ |
| 12/12 | 2,709 | 2,709 | 2,655 | 2,655 | -2.03% | 103,300 | 329億6147万 | -3.07% |
| 12/11 | 2,704 | 2,724 | 2,683 | 2,710 | +2.11% | 101,000 | 336億4429万 | -1.17% |
| 12/08 | 2,728 | 2,728 | 2,644 | 2,654 | -2.71% | 82,700 | 329億4906万 | -3.28% |
| 12/07 | 2,746 | 2,754 | 2,722 | 2,728 | -1.05% | 55,000 | 338億6776万 | -0.76% |
| 12/06 | 2,726 | 2,770 | 2,726 | 2,757 | +1.43% | 42,200 | 342億2779万 | +0.33% |
| 12/05 | 2,760 | 2,784 | 2,718 | 2,718 | -1.74% | 53,800 | 337億4361万 | -0.98% |
| 12/04 | 2,787 | 2,801 | 2,766 | 2,766 | -1.39% | 59,500 | 343億3953万 | +0.77% |
| 12/01 | 2,815 | 2,830 | 2,801 | 2,805 | -0.46% | 39,900 | 348億2371万 | +2.41% |
| 11/30 | 2,812 | 2,826 | 2,752 | 2,818 | -0.21% | 59,000 | 349億8510万 | +3.15% |
| 11/29 | 2,820 | 2,839 | 2,809 | 2,824 | -0.25% | 35,600 | 350億5959万 | +3.71% |
| 11/28 | 2,812 | 2,863 | 2,812 | 2,831 | +0.68% | 29,700 | 351億4649万 | +4.35% |
| 11/27 | 2,839 | 2,839 | 2,803 | 2,812 | +0.64% | 26,500 | 349億1061万 | +3.99% |
| 11/24 | 2,776 | 2,813 | 2,774 | 2,794 | +1.38% | 36,000 | 346億8714万 | +3.71% |
| 11/22 | 2,748 | 2,780 | 2,748 | 2,756 | +0.22% | 24,800 | 342億1538万 | +2.61% |
| 11/21 | 2,731 | 2,757 | 2,717 | 2,750 | +0.73% | 26,900 | 341億4089万 | +2.69% |
