| 2018 |
| 09/13 | 3,055 | 3,180 | 3,045 | 3,140 | +3.63% | 996,500 | 4128億7713万 | +5.51% |
| 09/12 | 16:30 東京地方検察庁による当社連結子会社及び同社元役員の起訴等について |
| 09/12 | 3,025 | 3,055 | 2,994 | 3,030 | +0.17% | 602,200 | 3984億1329万 | +2.09% |
| 09/11 | 3,020 | 3,035 | 3,005 | 3,025 | +0.33% | 499,600 | 3977億5584万 | +1.99% |
| 09/10 | 2,972 | 3,030 | 2,970 | 3,015 | +0.9% | 523,800 | 3964億4094万 | +1.55% |
| 09/07 | 2,971 | 3,010 | 2,956 | 2,988 | -0.03% | 747,200 | 3928億9073万 | +0.54% |
| 09/06 | 2,960 | 3,015 | 2,953 | 2,989 | +1.18% | 651,100 | 3930億2222万 | +0.44% |
| 09/05 | 2,906 | 2,965 | 2,901 | 2,954 | -0.27% | 747,300 | 3884億2008万 | -0.97% |
| 09/04 | 2,977 | 2,993 | 2,952 | 2,962 | -0.17% | 686,200 | 3894億7200万 | -1.04% |
| 09/03 | 3,015 | 3,025 | 2,952 | 2,967 | -1.26% | 644,500 | 3901億2945万 | -1.13% |
| 08/31 | 2,989 | 3,025 | 2,987 | 3,005 | -0.66% | 559,800 | 3951億2605万 | -0.13% |
| 08/30 | 3,035 | 3,045 | 3,000 | 3,025 | +0.17% | 473,200 | 3977億5584万 | +0.4% |
| 08/29 | 2,981 | 3,045 | 2,981 | 3,020 | +0.94% | 518,600 | 3970億9839万 | +0.1% |
| 08/28 | 3,005 | 3,020 | 2,992 | 2,992 | +0.98% | 370,200 | 3934億1668万 | -0.89% |
| 08/27 | 2,938 | 2,977 | 2,929 | 2,963 | +2.1% | 451,200 | 3896億349万 | -1.85% |
| 08/24 | 2,940 | 2,961 | 2,878 | 2,902 | -2.58% | 863,300 | 3815億8263万 | -3.91% |
| 08/23 | 2,995 | 3,030 | 2,938 | 2,979 | -1.36% | 745,900 | 3917億732万 | -1.39% |
| 08/22 | 2,957 | 3,030 | 2,930 | 3,020 | +1.62% | 612,900 | 3970億9839万 | 0% |
| 08/21 | 2,943 | 2,985 | 2,924 | 2,972 | +0.17% | 504,100 | 3907億8689万 | -1.52% |
| 08/20 | 2,968 | 2,980 | 2,950 | 2,967 | +0.58% | 606,000 | 3901億2945万 | -1.69% |
| 08/17 | 2,917 | 2,955 | 2,910 | 2,950 | +2.08% | 664,800 | 3878億9412万 | -2.22% |
| 08/16 | 2,857 | 2,892 | 2,828 | 2,890 | -0.34% | 799,000 | 3800億475万 | -4.11% |
| 08/15 | 2,935 | 2,944 | 2,883 | 2,900 | -0.34% | 515,700 | 3813億1965万 | -3.78% |
| 08/14 | 2,876 | 2,910 | 2,876 | 2,910 | +0.94% | 427,700 | 3826億3454万 | -3.45% |
| 08/13 | 2,901 | 2,916 | 2,876 | 2,883 | -1.94% | 603,200 | 3790億8432万 | -4.31% |
| 08/10 | 2,970 | 2,974 | 2,931 | 2,940 | -0.61% | 545,800 | 3865億7923万 | -2.39% |
| 08/09 | 2,993 | 2,993 | 2,937 | 2,958 | -0.54% | 534,800 | 3889億4604万 | -1.66% |
| 08/08 | 3,000 | 3,030 | 2,952 | 2,974 | -3.75% | 1,338,900 | 3910億4987万 | -1% |
| 08/07 | 15:00 当社グループのガバナンス体制強化策の実施状況及び品質問題等への対応状況について |
| 08/07 | 15:00 2019年3月期第1四半期決算補足説明資料 |
| 08/07 | 15:00 2019年3月期第1四半期決算短信〔日本基準〕(連結) |
| 08/07 | 3,060 | 3,105 | 3,060 | 3,090 | 0% | 430,400 | 4063億266万 | +3% |
| 08/06 | 3,100 | 3,120 | 3,085 | 3,090 | -0.16% | 319,800 | 4063億266万 | +3.14% |
| 08/03 | 3,110 | 3,125 | 3,080 | 3,095 | -1.9% | 553,800 | 4069億6011万 | +3.37% |
| 08/02 | 3,170 | 3,190 | 3,140 | 3,155 | -2.02% | 485,500 | 4148億4948万 | +5.45% |
| 08/01 | 15:00 当社直島製錬所におけるJIS認証取消し処分への対応状況について |
| 08/01 | 3,220 | 3,240 | 3,175 | 3,220 | +1.58% | 590,600 | 4233億9630万 | +7.8% |
| 07/31 | 3,175 | 3,195 | 3,155 | 3,170 | +0.63% | 742,200 | 4168億2182万 | +6.38% |
| 07/30 | 3,130 | 3,155 | 3,110 | 3,150 | +0.96% | 501,300 | 4141億9203万 | +5.88% |
| 07/27 | 3,105 | 3,125 | 3,085 | 3,120 | +0.48% | 453,300 | 4102億4734万 | +5.12% |
| 07/26 | 3,115 | 3,135 | 3,100 | 3,105 | +0.81% | 596,000 | 4082億7500万 | +4.83% |
| 07/25 | 3,045 | 3,140 | 3,035 | 3,080 | +2.67% | 917,600 | 4049億8776万 | +4.12% |
| 07/24 | 3,000 | 3,030 | 2,987 | 3,000 | +0.91% | 681,000 | 3944億6860万 | +1.52% |
| 07/23 | 2,942 | 2,987 | 2,942 | 2,973 | +1.19% | 694,500 | 3909億1838万 | +0.47% |
| 07/20 | 2,933 | 2,952 | 2,911 | 2,938 | -0.61% | 808,100 | 3863億1625万 | -0.94% |
| 07/19 | 2,970 | 2,987 | 2,955 | 2,956 | -0.37% | 581,600 | 3886億8306万 | -0.64% |
| 07/18 | 2,980 | 2,996 | 2,964 | 2,967 | +0.34% | 488,600 | 3901億2945万 | -0.6% |
| 07/17 | 2,965 | 2,971 | 2,935 | 2,957 | +0.1% | 676,200 | 3888億1455万 | -1.24% |
| 07/13 | 2,918 | 2,961 | 2,904 | 2,954 | +2.61% | 934,300 | 3884億2008万 | -1.63% |
| 07/12 | 2,860 | 2,879 | 2,838 | 2,879 | -0.03% | 544,600 | 3785億5837万 | -4.42% |
| 07/11 | 2,900 | 2,915 | 2,853 | 2,880 | -0.79% | 791,600 | 3786億8986万 | -4.86% |
| 07/10 | 2,919 | 2,948 | 2,902 | 2,903 | +0.69% | 891,000 | 3817億1412万 | -4.51% |
| 07/09 | 2,869 | 2,887 | 2,859 | 2,883 | +0.77% | 592,200 | 3790億8432万 | -5.48% |
| 07/06 | 2,835 | 2,877 | 2,830 | 2,861 | +0.77% | 763,100 | 3761億9155万 | -6.53% |
| 07/05 | 2,850 | 2,851 | 2,828 | 2,839 | -1.05% | 856,500 | 3732億9878万 | -7.52% |
| 07/04 | 2,851 | 2,905 | 2,851 | 2,869 | -0.31% | 725,100 | 3772億4347万 | -6.76% |
| 07/03 | 2,929 | 2,942 | 2,851 | 2,878 | -3.29% | 1,153,900 | 3784億2688万 | -6.68% |
| 07/02 | 3,060 | 3,075 | 2,973 | 2,976 | -2.27% | 927,100 | 3913億1285万 | -3.75% |
| 06/29 | 3,035 | 3,050 | 3,010 | 3,045 | +0.5% | 744,500 | 4003億8563万 | -1.68% |
| 06/28 | 3,030 | 3,055 | 3,015 | 3,030 | -0.33% | 645,900 | 3984億1329万 | -2.23% |
| 06/27 | 3,040 | 3,070 | 3,000 | 3,040 | 0% | 713,700 | 3997億2818万 | -1.97% |
| 06/26 | 2,995 | 3,060 | 2,982 | 3,040 | 0% | 886,800 | 3997億2818万 | -2.12% |
| 06/25 | 3,005 | 3,090 | 3,005 | 3,040 | +1.64% | 1,033,000 | 3997億2818万 | -2.31% |
| 06/22 | 15:00 買収防衛策に関する新株予約権に係る発行登録に関するお知らせ |
| 06/22 | 2,932 | 2,992 | 2,903 | 2,991 | +0.74% | 1,408,100 | 3932億8519万 | -4.1% |
| 06/21 | 2,969 | 2,989 | 2,945 | 2,969 | -0.84% | 1,039,900 | 3903億9242万 | -5.08% |
| 06/20 | 3,020 | 3,040 | 2,946 | 2,994 | -1.02% | 1,418,300 | 3936億7966万 | -4.53% |
| 06/19 | 3,065 | 3,120 | 3,020 | 3,025 | -2.26% | 1,126,800 | 3977億5584万 | -3.72% |
| 06/18 | 3,110 | 3,120 | 3,040 | 3,095 | -1.59% | 1,067,400 | 4069億6011万 | -1.68% |
| 06/15 | 3,165 | 3,170 | 3,120 | 3,145 | -0.63% | 1,262,200 | 4135億3458万 | -0.25% |
| 06/14 | 3,165 | 3,200 | 3,150 | 3,165 | -1.09% | 759,700 | 4161億6437万 | +0.32% |
| 06/13 | 3,190 | 3,210 | 3,155 | 3,200 | +0.31% | 652,800 | 4207億6651万 | +1.23% |
| 06/12 | 3,215 | 3,225 | 3,165 | 3,190 | 0% | 921,900 | 4194億5161万 | +0.82% |
| 06/11 | 12:00 役員報酬の一部返上等について |
| 06/11 | 12:00 代表取締役の異動に関するお知らせ |
| 06/11 | 3,185 | 3,205 | 3,165 | 3,190 | +0.16% | 474,000 | 4194億5161万 | +0.66% |
| 06/08 | 17:00 当社直島製錬所におけるJIS認証取消し処分について |
| 06/08 | 11:30 当社直島製錬所におけるJIS製品に係る認証機関からの指摘について |
| 06/08 | 3,215 | 3,265 | 3,140 | 3,185 | -1.7% | 1,333,300 | 4187億9416万 | +0.35% |
| 06/07 | 3,235 | 3,265 | 3,225 | 3,240 | +1.09% | 704,100 | 4260億2609万 | +1.89% |
| 06/06 | 3,160 | 3,220 | 3,145 | 3,205 | +1.26% | 718,700 | 4214億2395万 | +0.63% |
| 06/05 | 3,170 | 3,175 | 3,140 | 3,165 | +0.64% | 539,900 | 4161億6437万 | -0.78% |
| 06/04 | 3,125 | 3,160 | 3,125 | 3,145 | +1.78% | 628,500 | 4135億3458万 | -1.56% |
| 06/01 | 3,030 | 3,135 | 3,025 | 3,090 | +2.15% | 1,002,000 | 4063億266万 | -3.53% |
| 05/31 | 3,075 | 3,095 | 3,000 | 3,025 | -0.33% | 1,430,500 | 3977億5584万 | -5.91% |
| 05/30 | 3,020 | 3,035 | 2,992 | 3,035 | -1.3% | 1,170,100 | 3990億7073万 | -6.04% |
| 05/29 | 3,070 | 3,085 | 3,035 | 3,075 | -0.49% | 1,049,100 | 4043億3032万 | -5.18% |
| 05/28 | 3,080 | 3,100 | 3,065 | 3,090 | -0.16% | 561,500 | 4063億266万 | -5.04% |
| 05/25 | 3,080 | 3,110 | 3,055 | 3,095 | +0.16% | 935,500 | 4069億6011万 | -5.06% |
| 05/24 | 3,150 | 3,150 | 3,080 | 3,090 | -2.22% | 938,600 | 4063億266万 | -5.33% |
| 05/23 | 3,200 | 3,205 | 3,150 | 3,160 | -1.25% | 836,700 | 4155億693万 | -3.3% |
| 05/22 | 3,205 | 3,215 | 3,190 | 3,200 | -0.16% | 402,000 | 4207億6651万 | -2.14% |
| 05/21 | 3,215 | 3,220 | 3,185 | 3,205 | -0.16% | 394,700 | 4214億2395万 | -1.99% |
| 05/18 | 3,205 | 3,220 | 3,200 | 3,210 | +0.63% | 384,700 | 4220億8140万 | -1.89% |
| 05/17 | 3,170 | 3,225 | 3,155 | 3,190 | +1.59% | 681,600 | 4194億5161万 | -2.51% |
| 05/16 | 3,155 | 3,165 | 3,130 | 3,140 | -0.95% | 959,100 | 4128億7713万 | -3.98% |
| 05/15 | 3,210 | 3,215 | 3,170 | 3,170 | -1.25% | 834,400 | 4168億2182万 | -3.09% |
| 05/14 | 3,215 | 3,235 | 3,205 | 3,210 | +0.31% | 634,000 | 4220億8140万 | -1.86% |
| 05/11 | 3,275 | 3,290 | 3,155 | 3,200 | -3.76% | 1,649,600 | 4207億6651万 | -2.14% |
| 05/10 | 15:00 「ガバナンス強化策モニタリング委員会」及び「指名・報酬委員会」の設置について |
| 05/10 | 15:00 当社子会社における不適合品への対応の進捗状況について |
| 05/10 | 15:00 (訂正・数値データ訂正)「平成30年3月期第3四半期決算短信〔日本基準〕(連結)」の一部訂正について |
| 05/10 | 15:00 (訂正・数値データ訂正)「平成30年3月期第2四半期決算短信〔日本基準〕(連結)」の一部訂正について |
| 05/10 | 15:00 社外役員候補者の決定に関するお知らせ |
| 05/10 | 15:00 子会社の増資(特定子会社化)に関するお知らせ |
| 05/10 | 15:00 (訂正・数値データ訂正)「平成30年3月期第1四半期決算短信〔日本基準〕(連結)」の一部訂正について |
| 05/10 | 15:00 2018年3月期決算補足説明資料 |
| 05/10 | 15:00 2018年3月期決算短信〔日本基準〕(連結) |
| 05/10 | 3,280 | 3,345 | 3,260 | 3,325 | +1.37% | 789,200 | 4372億270万 | +1.71% |
| 05/09 | 3,280 | 3,295 | 3,255 | 3,280 | -0.91% | 743,800 | 4312億8567万 | +0.52% |
| 05/08 | 3,320 | 3,345 | 3,300 | 3,310 | 0% | 435,800 | 4352億3036万 | +1.53% |
| 05/07 | 3,330 | 3,335 | 3,265 | 3,310 | -0.9% | 611,700 | 4352億3036万 | +1.78% |
| 05/02 | 3,350 | 3,375 | 3,335 | 3,340 | -0.3% | 545,600 | 4391億7504万 | +2.93% |
| 05/01 | 3,310 | 3,375 | 3,305 | 3,350 | +0.3% | 470,600 | 4404億8994万 | +3.4% |
| 04/27 | 3,280 | 3,345 | 3,260 | 3,340 | +1.67% | 810,000 | 4391億7504万 | +3.34% |
| 04/26 | 3,345 | 3,345 | 3,275 | 3,285 | -1.79% | 683,700 | 4319億4312万 | +1.89% |
| 04/25 | 3,330 | 3,360 | 3,300 | 3,345 | -1.18% | 747,000 | 4398億3249万 | +3.72% |
| 04/24 | 3,380 | 3,395 | 3,335 | 3,385 | -0.44% | 712,900 | 4450億9207万 | +4.99% |
| 04/23 | 3,375 | 3,410 | 3,365 | 3,400 | +1.04% | 682,000 | 4470億6441万 | +5.59% |
