| 2024 |
| 04/19 | 4,670 | 4,695 | 4,530 | 4,590 | -2.34% | 159,100 | 2218億2640万 | +3.75% |
| 04/18 | 4,590 | 4,700 | 4,590 | 4,700 | +2.73% | 103,300 | 2271億4250万 | +6.58% |
| 04/17 | 4,625 | 4,650 | 4,510 | 4,575 | -1.51% | 90,100 | 2211億148万 | +4.26% |
| 04/16 | 4,740 | 4,780 | 4,595 | 4,645 | -3.43% | 151,400 | 2244億8445万 | +6.32% |
| 04/15 | 4,555 | 4,820 | 4,530 | 4,810 | +5.6% | 262,500 | 2324億5860万 | +10.63% |
| 04/12 | 4,540 | 4,585 | 4,505 | 4,555 | +0.89% | 81,300 | 2201億3491万 | +5.37% |
| 04/11 | 4,545 | 4,595 | 4,500 | 4,515 | -0.44% | 144,500 | 2182億179万 | +4.81% |
| 04/10 | 4,425 | 4,535 | 4,405 | 4,535 | +2.49% | 128,900 | 2191億6835万 | +5.74% |
| 04/09 | 4,400 | 4,460 | 4,395 | 4,425 | +1.61% | 87,500 | 2138億5225万 | +3.63% |
| 04/08 | 4,375 | 4,395 | 4,325 | 4,355 | +0.58% | 75,800 | 2104億6928万 | +2.33% |
| 04/05 | 4,285 | 4,380 | 4,260 | 4,330 | -0.46% | 111,500 | 2092億6107万 | +2% |
| 04/04 | 4,225 | 4,380 | 4,210 | 4,350 | +4.95% | 177,000 | 2102億2763万 | +2.69% |
| 04/03 | 4,190 | 4,220 | 4,100 | 4,145 | -1.43% | 154,600 | 2003億2035万 | -2.01% |
| 04/02 | 4,165 | 4,250 | 4,160 | 4,205 | +0.48% | 105,500 | 2032億2005万 | -0.68% |
| 04/01 | 4,370 | 4,390 | 4,175 | 4,185 | -4.99% | 113,100 | 2022億5348万 | -1.13% |
| 03/29 | 4,315 | 4,430 | 4,310 | 4,405 | +2.09% | 71,600 | 2128億8569万 | +4.06% |
| 03/28 | （IR情報）15:00 グループ内組織再編(当社完全子会社間の吸収分割および吸収合併、当社完全子会社との吸収合併並びに当社本部組織の再編)に関するお知らせ |
| 03/28 | 4,345 | 4,370 | 4,305 | 4,315 | -0.69% | 78,300 | 2085億3615万 | +2.2% |
| 03/27 | 4,365 | 4,395 | 4,310 | 4,345 | -0.46% | 175,200 | 2099億8599万 | +3.06% |
| 03/26 | 4,425 | 4,460 | 4,335 | 4,365 | -1.47% | 205,000 | 2109億5256万 | +3.68% |
| 03/25 | 4,450 | 4,480 | 4,355 | 4,430 | -0.45% | 179,600 | 2140億9389万 | +5.55% |
| 03/22 | 4,520 | 4,520 | 4,400 | 4,450 | -1.44% | 87,900 | 2150億6045万 | +6.46% |
| 03/21 | 4,380 | 4,515 | 4,380 | 4,515 | +4.51% | 226,700 | 2182億179万 | +8.43% |
| 03/19 | 4,290 | 4,365 | 4,275 | 4,320 | +0.7% | 78,300 | 2087億7779万 | +4.07% |
| 03/18 | 4,310 | 4,310 | 4,245 | 4,290 | +1.06% | 62,000 | 2073億2794万 | +3.32% |
| 03/15 | （5%ルール）古河電気工業（24.91%） |
| 03/15 | 4,250 | 4,290 | 4,220 | 4,245 | -0.12% | 111,300 | 2051億5317万 | +2.41% |
| 03/14 | 4,170 | 4,315 | 4,140 | 4,250 | +2.78% | 139,300 | 2053億9482万 | +2.63% |
| 03/13 | 4,135 | 4,175 | 4,100 | 4,135 | +0.61% | 100,800 | 1998億3707万 | +0.02% |
| 03/12 | 4,065 | 4,125 | 4,030 | 4,110 | 0% | 51,800 | 1986億2887万 | -0.58% |
| 03/11 | 4,145 | 4,145 | 4,065 | 4,110 | -2.03% | 126,600 | 1986億2887万 | -0.58% |
| 03/08 | 4,140 | 4,205 | 4,135 | 4,195 | +0.72% | 135,100 | 2027億3676万 | +1.48% |
| 03/07 | 4,100 | 4,195 | 4,095 | 4,165 | +3.09% | 187,200 | 2012億8692万 | +0.82% |
| 03/06 | 4,015 | 4,055 | 3,990 | 4,040 | -0.86% | 142,500 | 1952億4589万 | -2.11% |
| 03/05 | 4,070 | 4,100 | 4,040 | 4,075 | +0.12% | 115,500 | 1969億3738万 | -1.33% |
| 03/04 | 4,095 | 4,115 | 4,055 | 4,070 | -0.37% | 167,900 | 1966億9574万 | -1.48% |
| 03/01 | 4,110 | 4,140 | 4,070 | 4,085 | -0.61% | 110,500 | 1974億2066万 | -1.16% |
| 02/29 | 4,170 | 4,175 | 4,050 | 4,110 | -2.14% | 161,500 | 1986億2887万 | -0.53% |
| 02/28 | 4,205 | 4,225 | 4,170 | 4,200 | -0.71% | 96,100 | 2029億7841万 | +1.82% |
| 02/27 | 4,205 | 4,260 | 4,165 | 4,230 | +1.32% | 96,600 | 2044億2825万 | +2.79% |
| 02/26 | 4,235 | 4,260 | 4,140 | 4,175 | -0.48% | 117,400 | 2017億7020万 | +1.83% |
| 02/22 | 4,250 | 4,260 | 4,160 | 4,195 | +1.45% | 99,500 | 2027億3676万 | +2.67% |
| 02/21 | 4,105 | 4,150 | 4,085 | 4,135 | -0.84% | 83,500 | 1998億3707万 | +1.57% |
| 02/20 | 4,170 | 4,220 | 4,145 | 4,170 | -0.12% | 64,900 | 2015億2856万 | +2.73% |
| 02/19 | 4,080 | 4,195 | 4,070 | 4,175 | +3.34% | 108,700 | 2017億7020万 | +3.11% |
| 02/16 | 4,055 | 4,065 | 3,980 | 4,040 | +0.75% | 183,500 | 1952億4589万 | +0.1% |
| 02/15 | 4,075 | 4,095 | 3,980 | 4,010 | -0.99% | 179,600 | 1937億9605万 | -0.45% |
| 02/14 | 4,150 | 4,175 | 4,020 | 4,050 | -3.34% | 234,700 | 1957億2918万 | +0.77% |
| 02/13 | 4,300 | 4,300 | 4,170 | 4,190 | -3.46% | 260,800 | 2024億9512万 | +4.44% |
| 02/09 | 4,325 | 4,485 | 4,200 | 4,340 | +5.47% | 511,100 | 2097億4435万 | +8.55% |
| 02/08 | （IR情報）15:00 2023年度第3四半期決算説明会資料 |
| 02/08 | （IR情報）15:00 2024年3月期第3四半期決算短信〔IFRS〕(連結) |
| 02/08 | 4,145 | 4,145 | 4,065 | 4,115 | -0.72% | 170,800 | 1988億7051万 | +3.44% |
| 02/07 | 4,095 | 4,175 | 4,095 | 4,145 | +1.34% | 100,900 | 2003億2035万 | +4.46% |
| 02/06 | 4,085 | 4,130 | 4,080 | 4,090 | -0.85% | 100,600 | 1976億6230万 | +3.39% |
| 02/05 | 4,115 | 4,135 | 4,085 | 4,125 | +0.24% | 70,400 | 1993億5379万 | +4.56% |
| 02/02 | 4,135 | 4,140 | 4,090 | 4,115 | +0.12% | 90,700 | 1988億7051万 | +4.68% |
| 02/01 | 4,115 | 4,135 | 4,080 | 4,110 | 0% | 102,000 | 1986億2887万 | +4.98% |
| 01/31 | 4,050 | 4,110 | 4,035 | 4,110 | +0.61% | 107,900 | 1986億2887万 | +5.36% |
| 01/31 | （IR情報）9:00 (訂正)「代表取締役の異動(社長交代)に関するお知らせ」の一部訂正について |
| 01/30 | （IR情報）14:00 代表取締役の異動(社長交代)に関するお知らせ |
| 01/30 | 4,090 | 4,110 | 4,075 | 4,085 | -0.49% | 81,900 | 1974億2066万 | +5.07% |
| 01/29 | 4,145 | 4,175 | 4,100 | 4,105 | 0% | 108,300 | 1983億8723万 | +5.91% |
| 01/26 | 4,045 | 4,145 | 4,030 | 4,105 | -0.24% | 200,100 | 1983億8723万 | +6.26% |
| 01/25 | 4,030 | 4,115 | 4,010 | 4,115 | +1.6% | 184,600 | 1988億7051万 | +6.91% |
| 01/24 | 4,010 | 4,065 | 4,000 | 4,050 | +2.79% | 223,700 | 1957億2918万 | +5.58% |
| 01/23 | 3,975 | 3,975 | 3,890 | 3,940 | -0.63% | 89,700 | 1904億1308万 | +3.11% |
| 01/22 | 3,850 | 3,965 | 3,850 | 3,965 | +2.99% | 121,400 | 1916億2128万 | +3.93% |
| 01/19 | 3,850 | 3,850 | 3,805 | 3,850 | +0.65% | 88,600 | 1860億6354万 | +1.16% |
| 01/18 | 3,780 | 3,845 | 3,755 | 3,825 | +0.39% | 60,000 | 1848億5533万 | +0.63% |
| 01/17 | 3,820 | 3,880 | 3,805 | 3,810 | -1.04% | 88,200 | 1841億3041万 | +0.37% |
| 01/16 | 3,925 | 3,925 | 3,805 | 3,850 | -1.79% | 104,800 | 1860億6354万 | +1.42% |
| 01/15 | 3,875 | 3,940 | 3,865 | 3,920 | +1.82% | 106,100 | 1894億4651万 | +3.27% |
| 01/12 | 3,855 | 3,930 | 3,815 | 3,850 | +0.52% | 139,600 | 1860億6354万 | +1.64% |
| 01/11 | 3,830 | 3,860 | 3,805 | 3,830 | +1.32% | 101,200 | 1850億9697万 | +1.43% |
| 01/10 | 3,870 | 3,870 | 3,765 | 3,780 | -2.33% | 104,300 | 1826億8056万 | +0.43% |
| 01/09 | 3,850 | 3,880 | 3,810 | 3,870 | +0.39% | 152,100 | 1870億3010万 | +3.17% |
| 01/05 | 3,860 | 3,870 | 3,825 | 3,855 | +0.39% | 55,800 | 1863億518万 | +3.27% |
| 01/04 | 3,785 | 3,865 | 3,760 | 3,840 | -0.26% | 140,700 | 1855億8026万 | +3.42% |
| 2023 |
| 12/29 | 3,840 | 3,870 | 3,830 | 3,850 | +0.13% | 84,300 | 1860億6354万 | +4.28% |
| 12/28 | 3,805 | 3,865 | 3,785 | 3,845 | +0.65% | 127,400 | 1858億2190万 | +4.71% |
| 12/27 | 3,810 | 3,830 | 3,780 | 3,820 | +0.92% | 155,000 | 1846億1369万 | +4.69% |
| 12/26 | 3,725 | 3,785 | 3,725 | 3,785 | +1.88% | 114,800 | 1829億2221万 | +4.5% |
| 12/25 | 3,770 | 3,775 | 3,685 | 3,715 | -1.2% | 81,200 | 1795億3923万 | +3.28% |
| 12/22 | 3,785 | 3,810 | 3,760 | 3,760 | -0.66% | 89,400 | 1817億1400万 | +5.09% |
| 12/21 | 3,715 | 3,815 | 3,715 | 3,785 | +0.13% | 117,300 | 1829億2221万 | +6.47% |
| 12/20 | 3,775 | 3,810 | 3,760 | 3,780 | 0% | 100,400 | 1826億8056万 | +7.02% |
| 12/19 | 3,705 | 3,795 | 3,680 | 3,780 | +0.4% | 213,300 | 1826億8056万 | +7.78% |
| 12/18 | 3,780 | 3,780 | 3,725 | 3,765 | -0.53% | 198,400 | 1819億5564万 | +8.19% |
| 12/15 | 3,700 | 3,795 | 3,700 | 3,785 | +3.42% | 149,800 | 1829億2221万 | +9.58% |
| 12/14 | 3,800 | 3,820 | 3,660 | 3,660 | -3.81% | 156,400 | 1768億8118万 | +7.02% |
| 12/13 | 3,725 | 3,825 | 3,700 | 3,805 | +2.15% | 192,500 | 1838億8877万 | +12.18% |
| 12/12 | 3,760 | 3,790 | 3,720 | 3,725 | -0.27% | 136,500 | 1800億2251万 | +10.73% |
| 12/11 | 3,800 | 3,810 | 3,700 | 3,735 | +1.08% | 176,500 | 1805億580万 | +11.86% |
| 12/08 | 3,820 | 3,820 | 3,660 | 3,695 | -3.15% | 215,700 | 1785億7267万 | +11.6% |
| 12/07 | 3,820 | 3,865 | 3,795 | 3,815 | -1.17% | 245,300 | 1843億7205万 | +16.06% |
| 12/06 | 3,750 | 3,865 | 3,740 | 3,860 | +4.18% | 333,600 | 1865億4682万 | +18.55% |
| 12/05 | 3,670 | 3,745 | 3,650 | 3,705 | +4.51% | 394,900 | 1790億5595万 | +14.96% |
| 12/04 | 3,495 | 3,555 | 3,490 | 3,545 | +0.14% | 145,900 | 1713億2344万 | +10.92% |
| 12/01 | 3,480 | 3,555 | 3,420 | 3,540 | +2.16% | 199,100 | 1710億8180万 | +11.64% |
| 11/30 | 3,440 | 3,495 | 3,420 | 3,465 | +1.61% | 283,100 | 1674億5718万 | +10.1% |
| 11/29 | 3,375 | 3,460 | 3,370 | 3,410 | +1.79% | 236,800 | 1647億9913万 | +9.12% |
| 11/28 | 3,335 | 3,370 | 3,315 | 3,350 | +1.06% | 123,700 | 1618億9944万 | +7.86% |
| 11/27 | 3,345 | 3,360 | 3,290 | 3,315 | -1.49% | 129,300 | 1602億795万 | +7.21% |
| 11/24 | 3,285 | 3,365 | 3,280 | 3,365 | +3.06% | 143,200 | 1626億2436万 | +9.32% |
| 11/22 | 3,200 | 3,285 | 3,165 | 3,265 | +3.82% | 183,700 | 1577億9155万 | +6.56% |
