| 2024 |
| 01/31 | （IR情報）15:00 業績予想の修正に関するお知らせ |
| 01/31 | （IR情報）15:00 2023年度第3四半期決算説明資料 |
| 01/31 | （IR情報）15:00 役員人事について |
| 01/31 | （IR情報）15:00 当社グループにおけるグループファイナンス事業再編に関するお知らせ(完全子会社との会社分割(簡易吸収分割・略式吸収分割)) |
| 01/31 | （IR情報）15:00 2024年3月期第3四半期決算短信[日本基準](連結) |
| 01/25 | 975 | 986 | 967 | 986 | +1.13% | 1,371,900 | 4958億4222万 | +1.86% |
| 01/24 | 977 | 983 | 966 | 975 | -0.81% | 2,232,600 | 4903億1052万 | +0.72% |
| 01/23 | 983 | 992 | 978 | 983 | -0.91% | 2,667,200 | 4943億3358万 | +1.55% |
| 01/22 | 978 | 992 | 973 | 992 | +1.85% | 2,274,600 | 4988億5952万 | +2.37% |
| 01/19 | 975 | 975 | 962 | 974 | -0.41% | 2,735,900 | 4898億763万 | +0.41% |
| 01/18 | 977 | 990 | 974 | 978 | 0% | 2,130,800 | 4918億1916万 | +0.72% |
| 01/17 | 992 | 1,008 | 978 | 978 | -2.1% | 3,574,300 | 4918億1916万 | +0.72% |
| 01/16 | 1,001 | 1,008 | 984 | 999 | -0.1% | 2,132,100 | 5023億7970万 | +2.78% |
| 01/15 | 968 | 1,000 | 968 | 1,000 | +2.99% | 2,656,300 | 5028億8258万 | +2.88% |
| 01/12 | 984 | 989 | 970 | 971 | -1.42% | 1,834,000 | 4882億9899万 | +0.1% |
| 01/11 | 969 | 995 | 968 | 985 | +1.23% | 2,552,100 | 4953億3934万 | +1.65% |
| 01/10 | （IR情報）11:00 女川原子力発電所2号機における安全対策工事完了時期の精査状況について |
| 01/10 | 996 | 1,005 | 970 | 973 | -2.51% | 5,155,000 | 4893億475万 | +0.52% |
| 01/09 | 1,004 | 1,015 | 991 | 998 | -0.99% | 2,503,100 | 5018億7681万 | +3.21% |
| 01/05 | 994 | 1,009 | 981 | 1,008 | +2.75% | 2,381,800 | 5069億564万 | +4.56% |
| 01/04 | 940 | 984 | 935 | 981 | +2.29% | 2,635,900 | 4933億2781万 | +2.08% |
| 2023 |
| 12/29 | 946 | 959 | 944 | 959 | +1.37% | 1,572,500 | 4822億6439万 | 0% |
| 12/28 | 943 | 947 | 939 | 946 | -0.63% | 1,337,700 | 4757億2692万 | -1.25% |
| 12/27 | 934 | 955 | 932 | 952 | +2.04% | 1,723,400 | 4787億4422万 | -0.52% |
| 12/26 | 936 | 938 | 931 | 933 | +0.11% | 1,579,200 | 4691億8945万 | -2.41% |
| 12/25 | 935 | 936 | 925 | 932 | +0.43% | 1,535,100 | 4686億8656万 | -2.51% |
| 12/22 | 918 | 934 | 916 | 928 | +0.87% | 1,705,200 | 4666億7503万 | -3.03% |
| 12/21 | 933 | 941 | 918 | 920 | -1.29% | 2,388,800 | 4626億5197万 | -3.87% |
| 12/20 | 953 | 953 | 932 | 932 | -2.41% | 2,435,100 | 4686億8656万 | -2.71% |
| 12/19 | 963 | 966 | 947 | 955 | -0.83% | 1,691,000 | 4802億5286万 | -0.31% |
| 12/18 | 960 | 966 | 943 | 963 | -1.03% | 2,128,100 | 4842億7592万 | +0.52% |
| 12/15 | 979 | 979 | 963 | 973 | -1.22% | 2,949,900 | 4893億475万 | +1.67% |
| 12/14 | 1,035 | 1,042 | 981 | 985 | -3.34% | 3,228,400 | 4953億3934万 | +3.03% |
| 12/13 | 1,009 | 1,025 | 1,006 | 1,019 | +1.49% | 3,148,200 | 5124億3735万 | +6.93% |
| 12/12 | 1,006 | 1,015 | 989 | 1,004 | -0.5% | 3,204,800 | 5048億9411万 | +5.8% |
| 12/11 | 990 | 1,009 | 976 | 1,009 | +2.64% | 2,938,000 | 5074億852万 | +6.32% |
| 12/08 | 992 | 1,001 | 971 | 983 | -1.8% | 3,302,900 | 4943億3358万 | +3.69% |
| 12/07 | 982 | 1,002 | 978 | 1,001 | +1.83% | 2,872,400 | 5033億8546万 | +5.7% |
| 12/06 | 954 | 984 | 951 | 983 | +3.8% | 3,061,500 | 4943億3358万 | +4.02% |
| 12/05 | 945 | 956 | 934 | 947 | -0.21% | 1,564,800 | 4762億2980万 | +0.32% |
| 12/04 | 958 | 963 | 941 | 949 | -1.25% | 1,518,300 | 4772億3557万 | +0.53% |
| 12/01 | 961 | 967 | 955 | 961 | +1.48% | 2,015,300 | 4832億7016万 | +1.69% |
| 11/30 | 952 | 964 | 940 | 947 | +0.96% | 2,809,400 | 4762億2980万 | +0.32% |
| 11/29 | 928 | 941 | 923 | 938 | +1.41% | 1,737,700 | 4717億386万 | -0.64% |
| 11/28 | 924 | 925 | 913 | 925 | +0.11% | 1,640,000 | 4651億6639万 | -2.01% |
| 11/27 | 930 | 935 | 919 | 924 | -0.65% | 1,681,200 | 4646億6350万 | -2.22% |
| 11/24 | 943 | 943 | 925 | 930 | -0.53% | 1,823,400 | 4676億8080万 | -1.69% |
| 11/22 | 928 | 943 | 925 | 935 | +1.3% | 1,127,500 | 4701億9521万 | -1.16% |
| 11/21 | 935 | 938 | 921 | 923 | -1.7% | 2,156,600 | 4641億6062万 | -2.53% |
| 11/20 | 955 | 959 | 937 | 939 | -1.26% | 1,860,500 | 4722億674万 | -0.84% |
| 11/17 | 940 | 951 | 936 | 951 | +1.28% | 1,553,700 | 4782億4133万 | +0.32% |
| 11/16 | 937 | 947 | 932 | 939 | +0.21% | 1,451,600 | 4722億674万 | -0.95% |
| 11/15 | 945 | 957 | 935 | 937 | -0.32% | 2,445,000 | 4712億98万 | -1.26% |
| 11/14 | 946 | 946 | 933 | 940 | -0.63% | 1,594,300 | 4727億962万 | -1.05% |
| 11/13 | 944 | 953 | 937 | 946 | +0.64% | 1,409,500 | 4757億2692万 | -0.42% |
| 11/10 | 934 | 947 | 933 | 940 | +0.43% | 1,562,200 | 4727億962万 | -0.84% |
| 11/09 | 906 | 940 | 904 | 936 | +2.86% | 3,682,600 | 4706億9809万 | -0.95% |
| 11/08 | 941 | 951 | 902 | 910 | -2.67% | 5,156,500 | 4576億2315万 | -3.6% |
| 11/07 | 996 | 998 | 934 | 935 | -6.03% | 4,677,400 | 4701億9521万 | -1.16% |
| 11/06 | 1,000 | 1,003 | 979 | 995 | +1.22% | 3,869,100 | 5003億6817万 | +5.07% |
| 11/02 | 982 | 984 | 966 | 983 | +1.24% | 2,785,600 | 4943億3358万 | +3.69% |
| 11/01 | 961 | 991 | 948 | 971 | +3.3% | 3,680,700 | 4882億9899万 | +2.32% |
| 10/31 | （IR情報）15:00 2023年度第2四半期決算説明資料 |
| 10/31 | （IR情報）15:00 2024年3月期第2四半期決算短信〔日本基準〕(連結) |
| 10/31 | 953 | 959 | 929 | 940 | -1.36% | 2,873,200 | 4727億962万 | -1.26% |
| 10/30 | 964 | 974 | 939 | 953 | -0.73% | 5,688,900 | 4792億4710万 | -0.21% |
| 10/27 | 958 | 962 | 942 | 960 | +0.21% | 1,957,000 | 4827億6728万 | +0.21% |
| 10/26 | 956 | 965 | 947 | 958 | +0.63% | 1,586,300 | 4817億6151万 | -0.52% |
| 10/25 | 952 | 968 | 946 | 952 | +1.6% | 2,128,900 | 4787億4422万 | -1.55% |
| 10/24 | 946 | 947 | 918 | 937 | -0.64% | 1,564,900 | 4712億98万 | -3.7% |
| 10/23 | 940 | 956 | 939 | 943 | +0.21% | 1,191,700 | 4742億1827万 | -3.78% |
| 10/20 | 949 | 960 | 937 | 941 | -0.63% | 1,887,200 | 4732億1251万 | -4.56% |
| 10/19 | 938 | 951 | 935 | 947 | -0.21% | 1,182,200 | 4762億2980万 | -4.44% |
| 10/18 | 944 | 949 | 928 | 949 | +0.96% | 1,344,900 | 4772億3557万 | -4.62% |
| 10/17 | 951 | 958 | 936 | 940 | +0.11% | 1,351,500 | 4727億962万 | -5.81% |
| 10/16 | 945 | 959 | 933 | 939 | -1.88% | 1,967,900 | 4722億674万 | -6.29% |
| 10/13 | 954 | 965 | 952 | 957 | -0.62% | 1,269,200 | 4812億5863万 | -4.87% |
| 10/12 | 965 | 977 | 958 | 963 | +0.63% | 1,734,800 | 4842億7592万 | -4.46% |
| 10/11 | 958 | 968 | 950 | 957 | +0.42% | 2,145,700 | 4812億5863万 | -5.34% |
| 10/10 | 941 | 955 | 932 | 953 | +1.82% | 2,810,200 | 4792億4710万 | -5.92% |
| 10/06 | 920 | 945 | 915 | 936 | +2.63% | 3,497,700 | 4706億9809万 | -7.78% |
| 10/05 | 900 | 913 | 893 | 912 | +4.83% | 3,439,100 | 4586億2891万 | -10.41% |
| 10/04 | 893 | 910 | 870 | 870 | -4.19% | 4,036,700 | 4375億784万 | -14.96% |
| 10/03 | 912 | 936 | 906 | 908 | -4.42% | 4,284,300 | 4566億1738万 | -11.76% |
| 10/02 | 983 | 985 | 949 | 950 | -1.86% | 2,711,000 | 4777億3845万 | -7.95% |
| 09/29 | （IR情報）14:00 東北電力ネットワーク株式会社における個人情報等の不適切な取り扱いに対する個人情報保護委員会からの指導に対する報告について |
| 09/29 | （IR情報）14:00 個人情報保護委員会からの個人情報等の取り扱いに係る指導に対する報告書の提出について |
| 09/29 | 1,007 | 1,014 | 961 | 968 | -4.72% | 4,334,700 | 4867億9034万 | -6.38% |
| 09/28 | （IR情報）13:00 女川原子力発電所2号機における安全対策工事完了時期の見直しについて |
| 09/28 | 994 | 1,024 | 990 | 1,016 | +0.2% | 2,354,200 | 5109億2870万 | -1.84% |
| 09/27 | 1,015 | 1,015 | 992 | 1,014 | -1.17% | 2,814,700 | 5099億2294万 | -2.03% |
| 09/26 | 1,024 | 1,033 | 1,012 | 1,026 | +0.1% | 1,879,000 | 5159億5753万 | -0.68% |
| 09/25 | （5%ルール）アセットマネジメントOne（2.14%）みずほ銀行（1.02%） |
| 09/25 | 1,048 | 1,048 | 1,021 | 1,025 | -1.54% | 2,337,000 | 5154億5464万 | -0.58% |
| 09/22 | 1,062 | 1,062 | 1,033 | 1,041 | -2.44% | 2,418,900 | 5235億77万 | +1.26% |
| 09/21 | 1,061 | 1,076 | 1,052 | 1,067 | +0.57% | 2,010,700 | 5365億7571万 | +4.2% |
| 09/21 | （空売り報告）Barclays Capital Securities Ltd 779,475株（0.15%）-0.45%義務消失 |
| 09/20 | 1,115 | 1,115 | 1,057 | 1,061 | -4.5% | 4,045,100 | 5335億5842万 | +4.12% |
| 09/19 | 1,111 | 1,116 | 1,098 | 1,111 | +0.18% | 2,502,600 | 5587億255万 | +9.46% |
| 09/15 | （IR情報）15:00 コンプライアンス推進室の設置について |
| 09/15 | 1,100 | 1,119 | 1,097 | 1,109 | +1.74% | 3,324,300 | 5576億9678万 | +9.91% |
| 09/14 | 1,070 | 1,096 | 1,069 | 1,090 | +2.93% | 2,501,400 | 5481億4201万 | +8.67% |
| 09/13 | 1,061 | 1,072 | 1,053 | 1,059 | +0.38% | 1,543,700 | 5325億5265万 | +6.11% |
| 09/12 | 1,038 | 1,064 | 1,036 | 1,055 | +2.03% | 1,941,000 | 5305億4112万 | +6.14% |
| 09/11 | 1,038 | 1,046 | 1,029 | 1,034 | +0.49% | 1,639,000 | 5199億8059万 | +4.55% |
| 09/11 | （空売り報告）Barclays Capital Securities Ltd 3,018,875株（0.6%）+0.1% |
| 09/08 | 1,026 | 1,042 | 1,025 | 1,029 | -0.39% | 1,986,600 | 5174億6617万 | +4.26% |
| 09/07 | 1,024 | 1,033 | 1,019 | 1,033 | +0.78% | 1,561,100 | 5194億7771万 | +4.98% |
| 09/06 | 1,018 | 1,027 | 1,015 | 1,025 | +1.08% | 2,029,300 | 5154億5464万 | +4.38% |
| 09/05 | 1,004 | 1,014 | 999 | 1,014 | +0.7% | 1,155,700 | 5099億2294万 | +3.26% |
| 09/04 | 1,023 | 1,024 | 1,004 | 1,007 | -1.27% | 1,967,400 | 5064億276万 | +2.86% |
| 09/01 | 1,017 | 1,025 | 1,011 | 1,020 | +0.2% | 1,305,500 | 5129億4023万 | +4.51% |
| 08/31 | 1,010 | 1,024 | 1,004 | 1,018 | +0.39% | 1,726,500 | 5119億3447万 | +4.73% |
| 08/30 | 1,023 | 1,023 | 1,007 | 1,014 | -0.49% | 1,666,500 | 5099億2294万 | +4.75% |
| 08/29 | 1,009 | 1,023 | 1,005 | 1,019 | +1.29% | 1,872,400 | 5124億3735万 | +5.82% |
