| 2026 |
| 03/06 | 1,579 | 1,621 | 1,577 | 1,615 | +1.13% | 258,500 | 1230億5161万 | +15.85% |
| 03/05 | 1,568 | 1,625 | 1,535 | 1,597 | +4.52% | 256,400 | 1216億8014万 | +15.98% |
| 03/04 | 1,517 | 1,535 | 1,492 | 1,528 | -1.04% | 262,000 | 1164億2282万 | +12.27% |
| 03/03 | 1,520 | 1,558 | 1,494 | 1,544 | +1.05% | 277,300 | 1176億4191万 | +14.46% |
| 03/02 | 1,510 | 1,528 | 1,490 | 1,528 | +0.33% | 287,300 | 1164億2282万 | +14.29% |
| 02/27 | 1,486 | 1,523 | 1,470 | 1,523 | +3.82% | 367,100 | 1160億4186万 | +14.94% |
| 02/26 | 1,498 | 1,501 | 1,466 | 1,467 | -1.81% | 156,600 | 1117億7505万 | +11.73% |
| 02/25 | 1,485 | 1,506 | 1,468 | 1,494 | +1.56% | 341,900 | 1138億3226万 | +14.57% |
| 02/24 | 1,475 | 1,485 | 1,427 | 1,471 | +0.82% | 177,500 | 1120億7982万 | +13.77% |
| 02/20 | 1,433 | 1,464 | 1,419 | 1,459 | +1.74% | 417,200 | 1111億6551万 | +13.81% |
| 02/19 | 1,394 | 1,434 | 1,375 | 1,434 | +2.58% | 381,600 | 1092億6069万 | +12.74% |
| 02/18 | 1,400 | 1,400 | 1,371 | 1,398 | +0.79% | 151,000 | 1065億1774万 | +10.69% |
| 02/17 | 1,391 | 1,409 | 1,378 | 1,387 | 0% | 178,800 | 1056億7962万 | +10.52% |
| 02/16 | 1,389 | 1,403 | 1,381 | 1,387 | -0.14% | 379,400 | 1056億7962万 | +11.23% |
| 02/13 | 1,340 | 1,406 | 1,335 | 1,389 | +4.12% | 595,400 | 1058億3200万 | +12.11% |
| 02/12 | 1,282 | 1,340 | 1,271 | 1,334 | +3.98% | 456,100 | 1016億4139万 | +8.37% |
| 02/10 | (IR情報)15:30 定款一部変更に関するお知らせ |
| 02/10 | (IR情報)15:30 剰余金の配当(増配)に関するお知らせ |
| 02/10 | (IR情報)15:30 2025年12月期決算補足説明資料 |
| 02/10 | (IR情報)15:30 2025年12月期決算短信〔日本基準〕(連結) |
| 02/10 | 1,290 | 1,290 | 1,276 | 1,283 | -0.54% | 178,400 | 977億5555万 | +4.73% |
| 02/09 | 1,285 | 1,290 | 1,270 | 1,290 | +1.18% | 149,100 | 982億8890万 | +5.48% |
| 02/06 | 1,268 | 1,279 | 1,259 | 1,275 | +0.87% | 142,600 | 971億4601万 | +4.59% |
| 02/05 | 1,273 | 1,276 | 1,259 | 1,264 | -0.08% | 154,400 | 963億788万 | +3.95% |
| 02/04 | 1,243 | 1,268 | 1,240 | 1,265 | +1.93% | 199,900 | 963億8408万 | +4.12% |
| 02/03 | 1,235 | 1,249 | 1,232 | 1,241 | +0.81% | 177,900 | 945億5545万 | +2.22% |
| 02/02 | 1,228 | 1,234 | 1,222 | 1,231 | +0.65% | 167,400 | 937億9352万 | +1.48% |
| 01/30 | 1,221 | 1,225 | 1,212 | 1,223 | +0.66% | 153,200 | 931億8397万 | +0.91% |
| 01/29 | 1,195 | 1,218 | 1,182 | 1,215 | +1.25% | 191,800 | 925億7443万 | +0.33% |
| 01/28 | 1,205 | 1,208 | 1,197 | 1,200 | -0.58% | 130,300 | 914億3154万 | -0.91% |
| 01/27 | 1,212 | 1,215 | 1,201 | 1,207 | -1.15% | 116,600 | 919億6489万 | -0.33% |
| 01/26 | 1,225 | 1,229 | 1,214 | 1,221 | -1.29% | 120,600 | 930億3159万 | +0.91% |
| 01/23 | 1,238 | 1,239 | 1,220 | 1,237 | +0.41% | 220,500 | 942億5067万 | +2.32% |
| 01/22 | 1,219 | 1,236 | 1,212 | 1,232 | +1.07% | 134,500 | 938億6971万 | +2.07% |
| 01/21 | 1,220 | 1,225 | 1,201 | 1,219 | -1.3% | 154,100 | 928億7920万 | +1.16% |
| 01/20 | 1,230 | 1,238 | 1,219 | 1,235 | +0.57% | 174,400 | 940億9829万 | +2.66% |
| 01/19 | 1,206 | 1,229 | 1,204 | 1,228 | +2.16% | 328,200 | 935億6494万 | +2.33% |
| 01/16 | 1,201 | 1,203 | 1,187 | 1,202 | -0.25% | 201,100 | 915億8392万 | +0.33% |
| 01/15 | 1,201 | 1,207 | 1,192 | 1,205 | +0.25% | 311,900 | 918億1250万 | +0.67% |
| 01/14 | 1,200 | 1,207 | 1,194 | 1,202 | +0.67% | 261,100 | 915億8392万 | +0.5% |
| 01/13 | 1,201 | 1,205 | 1,188 | 1,194 | -0.25% | 185,600 | 909億7438万 | -0.08% |
| 01/09 | 1,190 | 1,197 | 1,185 | 1,197 | +1.44% | 193,700 | 912億296万 | +0.25% |
| 01/08 | 1,183 | 1,187 | 1,179 | 1,180 | -0.25% | 177,200 | 899億768万 | -1.17% |
| 01/07 | 1,193 | 1,199 | 1,181 | 1,183 | -1.91% | 246,000 | 901億3625万 | -0.92% |
| 01/06 | 1,212 | 1,215 | 1,191 | 1,206 | -0.99% | 376,100 | 918億8869万 | +0.92% |
| 01/05 | 1,201 | 1,229 | 1,201 | 1,218 | +1.5% | 336,100 | 928億301万 | +1.92% |
| 2025 |
| 12/30 | 1,195 | 1,206 | 1,192 | 1,200 | 0% | 288,600 | 914億3154万 | +0.5% |
| 12/29 | 1,209 | 1,218 | 1,195 | 1,200 | -2.44% | 792,500 | 914億3154万 | +0.5% |
| 12/26 | 1,247 | 1,249 | 1,229 | 1,230 | -0.32% | 980,700 | 937億1732万 | +3.02% |
| 12/25 | 1,226 | 1,239 | 1,219 | 1,234 | +1.15% | 1,049,000 | 940億2210万 | +3.61% |
| 12/24 | 1,219 | 1,226 | 1,211 | 1,220 | +0.58% | 550,500 | 929億5539万 | +2.69% |
| 12/23 | 1,208 | 1,221 | 1,204 | 1,213 | +0.66% | 507,300 | 924億2204万 | +2.28% |
| 12/22 | 1,209 | 1,213 | 1,198 | 1,205 | -0.5% | 648,400 | 918億1250万 | +1.77% |
| 12/19 | 1,201 | 1,211 | 1,199 | 1,211 | +0.58% | 432,800 | 922億6966万 | +2.45% |
| 12/18 | 1,180 | 1,209 | 1,180 | 1,204 | +2.38% | 450,800 | 917億3631万 | +1.95% |
| 12/17 | 1,183 | 1,183 | 1,173 | 1,176 | -0.68% | 155,900 | 896億290万 | -0.34% |
| 12/16 | (IR情報)13:00 従業員持株会向け譲渡制限付株式インセンティブとしての自己株式の処分の払込完了及び一部失権に関するお知らせ |
| 12/16 | 1,192 | 1,198 | 1,184 | 1,184 | -0.84% | 306,100 | 902億1245万 | +0.34% |
| 12/15 | 1,183 | 1,196 | 1,177 | 1,194 | +1.62% | 295,300 | 909億7438万 | +1.1% |
| 12/12 | 1,176 | 1,178 | 1,173 | 1,175 | +0.69% | 203,600 | 895億2671万 | -0.34% |
| 12/11 | 1,178 | 1,180 | 1,167 | 1,167 | -0.93% | 192,000 | 889億1717万 | -0.93% |
| 12/10 | 1,185 | 1,187 | 1,175 | 1,178 | -0.34% | 162,500 | 897億5529万 | +0.08% |
| 12/09 | 1,181 | 1,185 | 1,169 | 1,182 | +0.34% | 135,900 | 900億6006万 | +0.6% |
| 12/08 | 1,167 | 1,181 | 1,166 | 1,178 | +1.46% | 131,900 | 897億5529万 | +0.43% |
| 12/05 | 1,175 | 1,178 | 1,161 | 1,161 | -1.86% | 148,800 | 884億6001万 | -0.77% |
| 12/04 | 1,171 | 1,183 | 1,167 | 1,183 | +1.02% | 131,800 | 901億3625万 | +1.2% |
| 12/03 | 1,182 | 1,190 | 1,169 | 1,171 | -1.43% | 190,900 | 892億2194万 | +0.43% |
| 12/02 | 1,185 | 1,193 | 1,177 | 1,188 | -0.5% | 118,100 | 905億1722万 | +1.97% |
| 12/01 | 1,217 | 1,219 | 1,194 | 1,194 | -1.24% | 197,200 | 909億7438万 | +2.67% |
| 11/28 | 1,192 | 1,209 | 1,188 | 1,209 | +1.43% | 149,400 | 921億1727万 | +4.13% |
| 11/27 | 1,200 | 1,201 | 1,189 | 1,192 | -0.25% | 121,100 | 908億2199万 | +2.94% |
| 11/26 | 1,202 | 1,204 | 1,191 | 1,195 | +0.08% | 123,500 | 910億5057万 | +3.37% |
| 11/25 | 1,196 | 1,206 | 1,190 | 1,194 | -0.58% | 135,100 | 909億7438万 | +3.56% |
| 11/21 | 1,170 | 1,201 | 1,166 | 1,201 | +3.09% | 226,900 | 915億773万 | +4.34% |
| 11/20 | 1,163 | 1,173 | 1,159 | 1,165 | +0.69% | 159,100 | 887億6478万 | +1.39% |
| 11/19 | 1,163 | 1,168 | 1,152 | 1,157 | -0.43% | 145,500 | 881億5524万 | +0.87% |
| 11/18 | 1,163 | 1,174 | 1,161 | 1,162 | -0.26% | 164,000 | 885億3620万 | +1.4% |
| 11/17 | 1,161 | 1,172 | 1,158 | 1,165 | +0.09% | 189,600 | 887億6478万 | +1.84% |
| 11/14 | (5%ルール)東京瓦斯(6.86%) |
| 11/14 | 1,178 | 1,182 | 1,157 | 1,164 | -1.44% | 167,700 | 886億8859万 | +1.84% |
| 11/13 | 1,185 | 1,188 | 1,177 | 1,181 | +0.51% | 92,400 | 899億8387万 | +3.42% |
| 11/12 | 1,195 | 1,200 | 1,173 | 1,175 | -1.84% | 199,000 | 895億2671万 | +2.98% |
| 11/11 | 1,188 | 1,199 | 1,180 | 1,197 | +1.01% | 127,700 | 912億296万 | +5.09% |
| 11/10 | 1,171 | 1,188 | 1,170 | 1,185 | +1.46% | 217,300 | 902億8864万 | +4.22% |
| 11/07 | 1,145 | 1,171 | 1,142 | 1,168 | +2.19% | 220,200 | 889億9336万 | +2.91% |
| 11/06 | 1,123 | 1,146 | 1,123 | 1,143 | +1.06% | 190,500 | 870億8854万 | +0.79% |
| 11/05 | (IR情報)15:30 2025年12月期第3四半期決算補足説明資料 |
| 11/05 | (IR情報)15:30 2025年12月期第3四半期決算短信〔日本基準〕(連結) |
| 11/05 | 1,126 | 1,136 | 1,116 | 1,131 | +0.27% | 157,100 | 861億7422万 | -0.35% |
| 11/04 | 1,121 | 1,134 | 1,115 | 1,128 | +0.09% | 109,600 | 859億4564万 | -0.7% |
| 10/31 | 1,121 | 1,128 | 1,120 | 1,127 | +0.54% | 125,300 | 858億6945万 | -0.97% |
| 10/30 | 1,120 | 1,127 | 1,118 | 1,121 | 0% | 126,300 | 854億1229万 | -1.58% |
| 10/29 | 1,126 | 1,130 | 1,120 | 1,121 | -0.44% | 129,300 | 854億1229万 | -1.67% |
| 10/28 | 1,142 | 1,142 | 1,125 | 1,126 | -1.83% | 175,300 | 857億9326万 | -1.31% |
| 10/27 | 1,144 | 1,151 | 1,139 | 1,147 | +0.7% | 90,700 | 873億9331万 | +0.53% |
| 10/24 | 1,143 | 1,145 | 1,134 | 1,139 | -0.44% | 66,400 | 867億8377万 | -0.09% |
| 10/23 | 1,132 | 1,146 | 1,129 | 1,144 | +1.15% | 82,700 | 871億6473万 | +0.35% |
| 10/22 | 1,136 | 1,136 | 1,126 | 1,131 | -0.35% | 283,000 | 861億7422万 | -0.79% |
| 10/21 | 1,132 | 1,138 | 1,130 | 1,135 | +0.44% | 98,700 | 864億7899万 | -0.53% |
| 10/20 | 1,145 | 1,145 | 1,128 | 1,130 | -0.7% | 87,500 | 860億9803万 | -1.05% |
| 10/17 | 1,135 | 1,138 | 1,132 | 1,138 | 0% | 64,200 | 867億757万 | -0.44% |
| 10/16 | 1,130 | 1,138 | 1,127 | 1,138 | +0.71% | 64,200 | 867億757万 | -0.44% |
| 10/15 | 1,124 | 1,130 | 1,121 | 1,130 | +1.07% | 77,900 | 860億9803万 | -1.14% |
| 10/14 | 1,115 | 1,127 | 1,112 | 1,118 | -0.18% | 124,400 | 851億8371万 | -2.27% |
| 10/10 | 1,134 | 1,134 | 1,120 | 1,120 | -1.84% | 107,600 | 853億3610万 | -2.18% |
| 10/09 | 1,139 | 1,146 | 1,136 | 1,141 | +0.18% | 84,800 | 869億3615万 | -0.52% |
| 10/08 | 1,147 | 1,154 | 1,139 | 1,139 | -0.7% | 116,900 | 867億8377万 | -0.7% |
| 10/07 | 1,141 | 1,153 | 1,140 | 1,147 | +0.61% | 104,600 | 873億9331万 | 0% |