| 2026 |
| 03/09 | 2,069 | 2,169 | 2,062 | 2,160 | -0.41% | 59,400 | 1232億5224万 | -4.76% |
| 03/06 | 2,206 | 2,223 | 2,148 | 2,169 | -3.26% | 54,100 | 1237億6579万 | -4.37% |
| 03/05 | 2,237 | 2,292 | 2,224 | 2,242 | +1.68% | 56,900 | 1279億3126万 | -1.15% |
| 03/04 | 2,234 | 2,271 | 2,162 | 2,205 | -3.46% | 62,000 | 1258億1999万 | -2.69% |
| 03/03 | 2,312 | 2,330 | 2,270 | 2,284 | -2.68% | 70,400 | 1303億2783万 | +0.75% |
| 03/02 | 2,345 | 2,365 | 2,280 | 2,347 | 0% | 51,200 | 1339億2269万 | +3.62% |
| 02/27 | 2,339 | 2,362 | 2,301 | 2,347 | +1.73% | 72,300 | 1339億2269万 | +3.85% |
| 02/26 | 2,343 | 2,343 | 2,301 | 2,307 | -0.17% | 46,900 | 1316億4024万 | +2.26% |
| 02/25 | (IR情報)18:00 人事異動に関するお知らせ |
| 02/25 | 2,354 | 2,354 | 2,291 | 2,311 | -0.9% | 50,600 | 1318億6848万 | +2.62% |
| 02/24 | 2,327 | 2,362 | 2,262 | 2,332 | +1.61% | 53,900 | 1330億6677万 | +3.69% |
| 02/20 | (5%ルール)みずほ信託銀行(1.2%)みずほ証券(2.35%)アセットマネジメントOne(0.87%)みずほ銀行(4.63%) |
| 02/20 | 2,334 | 2,335 | 2,276 | 2,295 | -3.16% | 44,200 | 1309億5550万 | +2.27% |
| 02/19 | 2,344 | 2,371 | 2,327 | 2,370 | +1.11% | 38,200 | 1352億3509万 | +5.71% |
| 02/18 | 2,331 | 2,376 | 2,322 | 2,344 | +2.27% | 42,700 | 1337億5150万 | +4.83% |
| 02/17 | 2,289 | 2,331 | 2,264 | 2,292 | +0.97% | 33,000 | 1307億8432万 | +2.73% |
| 02/16 | 2,274 | 2,323 | 2,251 | 2,270 | +0.18% | 44,500 | 1295億2897万 | +1.93% |
| 02/13 | 2,365 | 2,385 | 2,251 | 2,266 | -4.02% | 37,000 | 1293億73万 | +1.84% |
| 02/12 | 2,230 | 2,397 | 2,230 | 2,361 | -0.8% | 70,700 | 1347億2154万 | +6.21% |
| 02/10 | (IR情報)16:00 配当予想の修正(設立100周年記念配当を含む期末配当)に関するお知らせ |
| 02/10 | 2,299 | 2,380 | 2,299 | 2,380 | +4.52% | 55,000 | 1358億571万 | +7.21% |
| 02/09 | 2,281 | 2,285 | 2,247 | 2,277 | +2.06% | 44,600 | 1299億2840万 | +2.89% |
| 02/06 | 2,221 | 2,265 | 2,205 | 2,231 | +0.27% | 41,500 | 1273億358万 | +0.95% |
| 02/05 | 2,219 | 2,250 | 2,215 | 2,225 | +1.18% | 42,500 | 1269億6122万 | +0.68% |
| 02/04 | 2,186 | 2,216 | 2,169 | 2,199 | +1.01% | 31,300 | 1254億7762万 | -0.41% |
| 02/03 | 2,141 | 2,200 | 2,140 | 2,177 | +2.25% | 34,600 | 1242億2228万 | -1.31% |
| 02/02 | 2,198 | 2,207 | 2,129 | 2,129 | -1.93% | 34,500 | 1214億8334万 | -3.49% |
| 01/30 | 2,163 | 2,194 | 2,159 | 2,171 | -0.18% | 30,700 | 1238億7991万 | -1.68% |
| 01/29 | 2,167 | 2,193 | 2,130 | 2,175 | +0.09% | 35,100 | 1241億816万 | -1.41% |
| 01/28 | 2,189 | 2,197 | 2,152 | 2,173 | -0.73% | 26,800 | 1239億9403万 | -1.41% |
| 01/27 | 2,194 | 2,194 | 2,161 | 2,189 | -1% | 34,900 | 1249億701万 | -0.68% |
| 01/26 | (IR情報)13:00 組織変更および人事異動に関するお知らせ |
| 01/26 | 2,227 | 2,240 | 2,199 | 2,211 | -1.12% | 37,700 | 1261億6236万 | +0.55% |
| 01/23 | 2,227 | 2,265 | 2,227 | 2,236 | -0.09% | 21,500 | 1275億8889万 | +1.82% |
| 01/22 | 2,217 | 2,240 | 2,200 | 2,238 | +0.4% | 16,100 | 1277億301万 | +2.15% |
| 01/21 | 2,212 | 2,229 | 2,190 | 2,229 | +0.77% | 24,800 | 1271億8946万 | +1.97% |
| 01/20 | 2,222 | 2,232 | 2,193 | 2,212 | -0.85% | 25,700 | 1262億1942万 | +1.42% |
| 01/19 | 2,226 | 2,251 | 2,224 | 2,231 | +0.22% | 22,300 | 1273億358万 | +2.53% |
| 01/16 | 2,200 | 2,227 | 2,199 | 2,226 | -0.09% | 24,900 | 1270億1828万 | +2.53% |
| 01/15 | 2,225 | 2,231 | 2,208 | 2,228 | +0.09% | 24,600 | 1271億3240万 | +2.86% |
| 01/14 | 2,205 | 2,246 | 2,205 | 2,226 | -0.09% | 30,500 | 1270億1828万 | +3.06% |
| 01/13 | 2,212 | 2,241 | 2,195 | 2,228 | +1.32% | 28,400 | 1271億3240万 | +3.29% |
| 01/09 | 2,205 | 2,234 | 2,185 | 2,199 | -0.45% | 31,700 | 1254億7762万 | +2.04% |
| 01/08 | 2,200 | 2,222 | 2,200 | 2,209 | +0.27% | 25,200 | 1260億4824万 | +2.6% |
| 01/07 | 2,258 | 2,270 | 2,203 | 2,203 | -4.05% | 42,100 | 1257億587万 | +2.18% |
| 01/06 | 2,230 | 2,315 | 2,230 | 2,296 | +3.89% | 38,600 | 1310億1256万 | +6.25% |
| 01/05 | 2,204 | 2,227 | 2,200 | 2,210 | +0.36% | 20,000 | 1261億530万 | +2.27% |
| 2025 |
| 12/30 | 2,220 | 2,235 | 2,196 | 2,202 | -0.68% | 35,000 | 1256億4881万 | +1.9% |
| 12/29 | 2,179 | 2,217 | 2,170 | 2,217 | +1.74% | 37,700 | 1265億473万 | +2.69% |
| 12/26 | 2,191 | 2,193 | 2,169 | 2,179 | +0.69% | 19,800 | 1243億3640万 | +0.97% |
| 12/25 | 2,169 | 2,172 | 2,150 | 2,164 | +0.32% | 13,000 | 1234億8048万 | +0.28% |
| 12/24 | 2,179 | 2,184 | 2,152 | 2,157 | -1.01% | 17,000 | 1230億8105万 | 0% |
| 12/23 | 2,152 | 2,187 | 2,152 | 2,179 | +1.73% | 31,000 | 1243億3640万 | +1.02% |
| 12/22 | 2,157 | 2,157 | 2,117 | 2,142 | +0.75% | 27,500 | 1222億2513万 | -0.74% |
| 12/19 | 2,127 | 2,147 | 2,113 | 2,126 | -1.48% | 46,700 | 1213億1216万 | -1.67% |
| 12/18 | 2,099 | 2,162 | 2,085 | 2,158 | +3.8% | 36,700 | 1231億3811万 | -0.42% |
| 12/17 | 2,123 | 2,123 | 2,056 | 2,079 | -1.89% | 35,800 | 1186億3028万 | -4.19% |
| 12/16 | 2,106 | 2,138 | 2,096 | 2,119 | +0.52% | 50,900 | 1209億1273万 | -2.62% |
| 12/15 | 2,119 | 2,122 | 2,096 | 2,108 | -0.52% | 38,600 | 1202億8505万 | -3.17% |
| 12/12 | 2,144 | 2,147 | 2,108 | 2,119 | +0.43% | 62,500 | 1209億1273万 | -2.8% |
| 12/11 | 2,090 | 2,119 | 2,077 | 2,110 | +1.05% | 44,400 | 1203億9918万 | -3.26% |
| 12/10 | 2,120 | 2,136 | 2,075 | 2,088 | -0.9% | 33,000 | 1191億4383万 | -4.26% |
| 12/09 | 2,097 | 2,126 | 2,093 | 2,107 | +1.06% | 38,100 | 1202億2799万 | -3.44% |
| 12/08 | 2,130 | 2,149 | 2,081 | 2,085 | -0.71% | 20,300 | 1189億7264万 | -4.45% |
| 12/05 | (自社株買い)取締役会(2025年11月7日)での決議状況(取得期間2025年11月10日~2025年11月10日) |
| 12/05 | 2,115 | 2,123 | 2,073 | 2,100 | -2.19% | 43,200 | 1198億2856万 | -3.76% |
| 12/04 | 2,143 | 2,181 | 2,132 | 2,147 | -0.83% | 34,700 | 1225億1044万 | -1.65% |
| 12/03 | 2,167 | 2,177 | 2,150 | 2,165 | +0.09% | 31,300 | 1235億3754万 | -0.87% |
| 12/02 | 2,255 | 2,281 | 2,162 | 2,163 | -5.13% | 57,300 | 1234億2342万 | -1.28% |
| 12/01 | 2,297 | 2,297 | 2,241 | 2,280 | -1.43% | 37,400 | 1300億9958万 | +3.78% |
| 11/28 | 2,308 | 2,332 | 2,290 | 2,313 | +0.7% | 26,000 | 1319億8260万 | +5.28% |
| 11/27 | 2,220 | 2,299 | 2,220 | 2,297 | +3.98% | 44,100 | 1310億6962万 | +4.65% |
| 11/26 | 2,196 | 2,226 | 2,179 | 2,209 | +1.7% | 27,500 | 1260億4824万 | +0.73% |
| 11/25 | 2,196 | 2,200 | 2,157 | 2,172 | -0.09% | 48,500 | 1239億3697万 | -1.05% |
| 11/21 | 2,197 | 2,235 | 2,174 | 2,174 | -0.41% | 129,700 | 1240億5109万 | -1% |
| 11/20 | 2,195 | 2,216 | 2,170 | 2,183 | +1.77% | 30,500 | 1245億6464万 | -0.73% |
| 11/19 | 2,150 | 2,170 | 2,130 | 2,145 | -0.23% | 31,600 | 1223億9632万 | -2.54% |
| 11/18 | 2,200 | 2,201 | 2,141 | 2,150 | -2.32% | 26,300 | 1226億8162万 | -2.36% |
| 11/17 | 2,232 | 2,243 | 2,201 | 2,201 | -1.74% | 32,400 | 1255億9175万 | -0.14% |
| 11/14 | (5%ルール)ENEOS HD(4.06%) |
| 11/14 | 2,256 | 2,278 | 2,211 | 2,240 | -0.67% | 32,100 | 1278億1713万 | +1.5% |
| 11/13 | 2,271 | 2,308 | 2,227 | 2,255 | +0.36% | 32,500 | 1286億7305万 | +2.17% |
| 11/12 | 2,236 | 2,328 | 2,234 | 2,247 | +1.54% | 54,600 | 1282億1656万 | +1.81% |
| 11/11 | 2,200 | 2,222 | 2,146 | 2,213 | +2.6% | 44,300 | 1262億7648万 | +0.23% |
| 11/10 | (IR情報)10:30 自己株式立会外買付取引(ToSTNeT-3)による自己株式の取得結果及び自己株式取得終了に関するお知らせ |
| 11/10 | 2,121 | 2,220 | 2,121 | 2,157 | -0.64% | 51,000 | 1230億8105万 | -2.27% |
| 11/07 | (IR情報)16:30 自己株式の取得及び自己株式立会外買付取引(ToSTNeT-3)による自己株式の買付けに関するお知らせ |
| 11/07 | (IR情報)16:00 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 11/07 | 2,150 | 2,171 | 2,128 | 2,171 | +1.16% | 29,100 | 1238億7991万 | -1.63% |
| 11/06 | 2,138 | 2,169 | 2,120 | 2,146 | +1.8% | 29,000 | 1224億5338万 | -2.9% |
| 11/05 | 2,106 | 2,134 | 2,073 | 2,108 | -0.89% | 34,500 | 1202億8505万 | -4.87% |
| 11/04 | 2,095 | 2,143 | 2,091 | 2,127 | +0.9% | 24,700 | 1213億6922万 | -4.36% |
| 10/31 | 2,106 | 2,125 | 2,056 | 2,108 | +1.1% | 58,200 | 1202億8505万 | -5.56% |
| 10/30 | 2,118 | 2,129 | 2,085 | 2,085 | -1.18% | 62,500 | 1189億7264万 | -6.88% |
| 10/29 | 2,193 | 2,193 | 2,110 | 2,110 | -3.78% | 30,200 | 1203億9918万 | -6.06% |
| 10/28 | 2,292 | 2,305 | 2,193 | 2,193 | -5.76% | 37,600 | 1251億3526万 | -2.62% |
| 10/27 | 2,334 | 2,346 | 2,321 | 2,327 | +0.95% | 25,900 | 1327億8146万 | +3.19% |
| 10/24 | 2,300 | 2,317 | 2,298 | 2,305 | +0.48% | 16,600 | 1315億2611万 | +2.35% |
| 10/23 | 2,265 | 2,317 | 2,259 | 2,294 | +1.28% | 27,900 | 1308億9844万 | +2% |
| 10/22 | 2,265 | 2,279 | 2,247 | 2,265 | +0.62% | 24,900 | 1292億4367万 | +0.71% |
| 10/21 | 2,240 | 2,268 | 2,235 | 2,251 | +0.13% | 24,100 | 1284億4481万 | +0.04% |
| 10/20 | 2,230 | 2,248 | 2,214 | 2,248 | +1.81% | 16,400 | 1282億7362万 | -0.18% |
| 10/17 | 2,237 | 2,237 | 2,205 | 2,208 | -1.3% | 20,300 | 1259億9118万 | -2% |
| 10/16 | 2,233 | 2,265 | 2,220 | 2,237 | -0.22% | 31,800 | 1276億4595万 | -0.75% |
| 10/15 | 2,192 | 2,250 | 2,192 | 2,242 | +3.37% | 20,100 | 1279億3126万 | -0.49% |
| 10/14 | 2,163 | 2,205 | 2,148 | 2,169 | -1.27% | 30,600 | 1237億6579万 | -3.56% |
| 10/10 | 2,231 | 2,231 | 2,180 | 2,197 | -3.13% | 32,800 | 1253億6350万 | -2.4% |
| 10/09 | 2,244 | 2,274 | 2,242 | 2,268 | +1.07% | 24,300 | 1294億1485万 | +0.8% |
| 10/08 | 2,246 | 2,291 | 2,233 | 2,244 | -0.58% | 27,700 | 1280億4538万 | -0.04% |