| 2026 |
| 10/01 | 1,581 | 1,587 | 1,525 | 1,528 | -3.96% | 5,302,000 | - | -1.36% |
| 09/30 | 1,575 | 1,597 | 1,547 | 1,591 | +0.32% | 6,598,100 | - | +3.11% |
| 09/29 | 1,613 | 1,626 | 1,574 | 1,586 | -4.92% | 4,236,200 | - | +3.32% |
| 09/28 | (IR情報)14:00 出光グループ内で使用済みプラスチック由来の油からナフサまでの一貫製造を実現 |
| 09/28 | 1,630 | 1,675 | 1,625 | 1,668 | +0.3% | 4,648,500 | - | +9.31% |
| 09/25 | 1,647 | 1,686 | 1,642 | 1,663 | +0.73% | 3,878,000 | - | +9.99% |
| 09/24 | 1,659 | 1,690 | 1,636 | 1,651 | 0% | 5,816,000 | - | +9.99% |
| 09/18 | (IR情報)13:00 【個人投資家向け】 ラジオNIKKEI主催「ジャパンツアーIR&櫻井英明株式講演 in札幌」 登壇のお知らせ |
| 09/18 | 1,669 | 1,673 | 1,645 | 1,651 | -1.32% | 8,734,500 | - | +10.95% |
| 09/17 | 1,637 | 1,685 | 1,633 | 1,673 | +0.18% | 4,222,100 | - | +13.5% |
| 09/17 | (空売り報告)J.P. MORGAN SECURITIES PLC 13,255,334株(1.08%)+0.12% |
| 09/16 | 1,640 | 1,697 | 1,639 | 1,670 | +4.31% | 5,744,500 | - | +14.46% |
| 09/16 | (空売り報告)J.P. MORGAN SECURITIES PLC 11,795,634株(0.96%)-0.19% |
| 09/15 | 1,611 | 1,627 | 1,587 | 1,601 | -2.26% | 5,333,900 | - | +10.87% |
| 09/14 | 1,661 | 1,698 | 1,627 | 1,638 | -0.61% | 4,938,400 | - | +14.47% |
| 09/11 | 1,645 | 1,666 | 1,624 | 1,648 | -0.18% | 7,416,300 | - | +16.14% |
| 09/11 | (空売り報告)J.P. MORGAN SECURITIES PLC 14,140,934株(1.15%)新規 |
| 09/10 | 1,698 | 1,709 | 1,629 | 1,651 | -0.54% | 7,459,600 | - | +17.68% |
| 09/09 | 1,605 | 1,660 | 1,597 | 1,660 | +7.58% | 8,406,000 | - | +19.68% |
| 09/08 | (IR情報)15:00 米国に宇宙用CIGS太陽電池の開発ラボを開設 米国市場との連携を強化し、事業化を加速 |
| 09/08 | 1,505 | 1,552 | 1,496 | 1,543 | +2.94% | 5,964,300 | - | +12.63% |
| 09/07 | 1,490 | 1,512 | 1,480 | 1,499 | +1.97% | 3,545,700 | - | +10.3% |
| 09/04 | 1,509 | 1,513 | 1,462 | 1,470 | -1.34% | 5,203,300 | - | +8.73% |
| 09/03 | 1,490 | 1,507 | 1,480 | 1,490 | +1.92% | 4,992,400 | - | +10.78% |
| 09/02 | (IR情報)15:30 連結子会社からの配当金受領に関するお知らせ |
| 09/02 | 1,484 | 1,501 | 1,461 | 1,462 | -1.42% | 6,582,200 | - | +9.19% |
| 09/01 | 1,412 | 1,483 | 1,412 | 1,483 | +4.44% | 6,087,700 | - | +11.34% |
| 08/31 | (IR情報)15:00 「出光統合レポート2026」を公開 |
| 08/31 | 1,393 | 1,420 | 1,380 | 1,420 | +2.9% | 6,692,200 | - | +7.09% |
| 08/28 | 1,366 | 1,389 | 1,359 | 1,380 | +0.73% | 2,724,900 | - | +4.39% |
| 08/27 | 1,375 | 1,381 | 1,360 | 1,370 | +0.88% | 2,737,800 | - | +3.79% |
| 08/26 | 1,373 | 1,374 | 1,349 | 1,358 | -1.52% | 2,868,500 | - | +3.03% |
| 08/25 | 1,377 | 1,397 | 1,373 | 1,379 | 0% | 3,110,300 | - | +4.87% |
| 08/24 | 1,382 | 1,382 | 1,355 | 1,379 | -0.36% | 3,033,900 | - | +5.27% |
| 08/21 | 1,349 | 1,384 | 1,340 | 1,384 | +2.52% | 4,420,000 | - | +6.05% |
| 08/20 | 1,338 | 1,361 | 1,331 | 1,350 | +0.97% | 4,347,300 | - | +3.77% |
| 08/19 | 1,360 | 1,365 | 1,324 | 1,337 | -2.48% | 5,427,900 | - | +3% |
| 08/18 | 1,330 | 1,382 | 1,330 | 1,371 | +3.08% | 4,674,400 | - | +5.95% |
| 08/17 | 1,315 | 1,333 | 1,311 | 1,330 | +1.76% | 2,773,500 | - | +3.18% |
| 08/14 | (IR情報)17:00 2027年3月期第1四半期決算短信〔IFRS〕(連結)(監査法人による期中レビューの完了) |
| 08/14 | 1,286 | 1,308 | 1,270 | 1,307 | +1.87% | 4,044,300 | - | +1.71% |
| 08/13 | 1,296 | 1,305 | 1,282 | 1,283 | -1.08% | 3,803,000 | - | 0% |
| 08/12 | 1,325 | 1,329 | 1,293 | 1,297 | +0.15% | 4,244,600 | - | +1.25% |
| 08/10 | 1,323 | 1,330 | 1,286 | 1,295 | -1.97% | 4,124,200 | - | +1.25% |
| 08/07 | (IR情報)15:30 2026年度第1四半期決算説明資料 |
| 08/07 | (IR情報)15:30 2027年3月期第1四半期決算短信〔IFRS〕(連結) |
| 08/07 | 1,304 | 1,330 | 1,294 | 1,321 | +4.92% | 4,472,500 | - | +3.61% |
| 08/06 | (5%ルール)ノムラインターナショナルピーエルシー(NOMURA IN…(0.07%)野村アセットマネジメント(4.47%)野村證券(0.04%) |
| 08/06 | 1,230 | 1,265 | 1,228 | 1,259 | +1.45% | 3,226,200 | - | -0.94% |
| 08/05 | 1,245 | 1,255 | 1,231 | 1,241 | -0.72% | 4,679,600 | - | -2.13% |
| 08/04 | 1,265 | 1,271 | 1,246 | 1,250 | -1.34% | 2,757,300 | - | -1.26% |
| 08/03 | 1,300 | 1,305 | 1,255 | 1,267 | -3.36% | 3,348,400 | - | +0.24% |
| 07/31 | 1,304 | 1,317 | 1,299 | 1,311 | +0.15% | 3,884,800 | - | +3.8% |
| 07/30 | 1,326 | 1,327 | 1,302 | 1,309 | -0.91% | 2,876,400 | - | +3.97% |
| 07/29 | 1,313 | 1,329 | 1,307 | 1,321 | +1.07% | 3,923,000 | - | +5.18% |
| 07/28 | 1,322 | 1,323 | 1,292 | 1,307 | -0.53% | 3,468,500 | - | +4.31% |
| 07/27 | 1,326 | 1,336 | 1,308 | 1,314 | -1.5% | 3,559,900 | - | +5.04% |
| 07/24 | 1,339 | 1,352 | 1,327 | 1,334 | +0.68% | 4,190,100 | - | +6.89% |
| 07/23 | 1,316 | 1,328 | 1,312 | 1,325 | +0.68% | 3,147,300 | - | +6.43% |
| 07/22 | 1,285 | 1,320 | 1,281 | 1,316 | +1.78% | 3,542,300 | - | +5.87% |
| 07/21 | 1,276 | 1,303 | 1,273 | 1,293 | +4.19% | 4,311,600 | - | +4.11% |
| 07/17 | 1,255 | 1,265 | 1,235 | 1,241 | -1.74% | 3,461,200 | - | -0.24% |
| 07/16 | 1,267 | 1,282 | 1,260 | 1,263 | -1.33% | 2,723,700 | - | +1.28% |
| 07/15 | 1,279 | 1,290 | 1,270 | 1,280 | +0.71% | 3,514,400 | - | +2.4% |
| 07/14 | 1,257 | 1,274 | 1,247 | 1,271 | +1.92% | 3,089,700 | - | +1.52% |
| 07/13 | 1,251 | 1,258 | 1,242 | 1,247 | +0.56% | 3,061,500 | - | -0.64% |
| 07/10 | 1,255 | 1,255 | 1,232 | 1,240 | -0.24% | 3,528,500 | - | -1.51% |
| 07/09 | 1,248 | 1,256 | 1,229 | 1,243 | +0.49% | 3,617,500 | - | -1.66% |
| 07/08 | 1,252 | 1,256 | 1,231 | 1,237 | +0.08% | 3,527,500 | - | -2.68% |
| 07/07 | 1,250 | 1,253 | 1,229 | 1,236 | -0.64% | 3,805,100 | - | -3.21% |
| 07/06 | 1,220 | 1,247 | 1,216 | 1,244 | +2.39% | 2,549,500 | - | -2.96% |
| 07/03 | 1,216 | 1,222 | 1,207 | 1,215 | +1% | 3,590,400 | - | -5.59% |
| 07/02 | 1,195 | 1,209 | 1,187 | 1,203 | +1.35% | 3,373,700 | - | -7.03% |
| 07/01 | 1,199 | 1,203 | 1,176 | 1,187 | -0.92% | 3,475,400 | - | -8.62% |
| 06/30 | (IR情報)14:00 油化ケミカルリサイクル設備2号機の基本設計を開始 |
| 06/30 | 1,225 | 1,226 | 1,189 | 1,198 | -0.75% | 5,390,200 | - | -8.13% |
| 06/29 | 1,219 | 1,227 | 1,204 | 1,207 | -1.39% | 6,808,700 | - | -7.79% |
| 06/26 | 1,224 | 1,230 | 1,209 | 1,224 | +1.16% | 3,458,300 | - | -6.78% |
| 06/25 | 1,279 | 1,281 | 1,204 | 1,210 | -1.87% | 4,715,400 | - | -8.12% |
| 06/24 | 1,249 | 1,252 | 1,230 | 1,233 | -1.36% | 3,508,600 | - | -6.8% |
| 06/23 | (IR情報)14:00 2026年度「SOMPOサステナビリティ・インデックス」構成銘柄に選定 |
| 06/23 | 1,268 | 1,272 | 1,245 | 1,250 | -0.32% | 4,558,800 | - | -5.87% |
| 06/22 | 1,256 | 1,265 | 1,238 | 1,254 | -0.48% | 3,371,900 | - | -5.93% |
| 06/19 | 1,237 | 1,260 | 1,217 | 1,260 | +1.12% | 10,404,900 | - | -5.83% |
| 06/18 | (IR情報)15:00 JAXA「宇宙戦略基金」の補助金交付が決定 宇宙用CIGS太陽電池の量産技術開発を加速 |
| 06/18 | 1,294 | 1,295 | 1,244 | 1,246 | -3.04% | 4,125,300 | - | -7.29% |
| 06/17 | 1,285 | 1,293 | 1,251 | 1,285 | -0.23% | 4,040,400 | - | -4.89% |
| 06/16 | 1,309 | 1,320 | 1,288 | 1,288 | -3.3% | 3,618,200 | - | -5.01% |
| 06/15 | 1,329 | 1,363 | 1,319 | 1,332 | +1.29% | 3,327,700 | - | -2.06% |
| 06/12 | 1,359 | 1,365 | 1,301 | 1,315 | -2.16% | 5,523,600 | - | -3.38% |
| 06/11 | (IR情報)10:30 自己株式の取得結果および取得終了並びに消却株式数に関するお知らせ |
| 06/11 | 1,346 | 1,370 | 1,333 | 1,344 | +0.9% | 3,531,900 | - | -1.32% |
| 06/10 | 1,328 | 1,343 | 1,321 | 1,332 | -0.52% | 3,746,500 | - | -2.27% |
| 06/09 | (5%ルール)MIパワー(1.03%)出光千惠子(0.39%)日章興産(8.95%)善(1.46%)縁(1.44%)正和興産(2.03%) |
| 06/09 | 1,361 | 1,378 | 1,339 | 1,339 | -0.74% | 5,626,100 | - | -1.83% |
| 06/08 | 1,365 | 1,378 | 1,337 | 1,349 | -2.32% | 4,287,600 | - | -1.17% |
| 06/05 | 1,407 | 1,413 | 1,373 | 1,381 | -1.15% | 3,641,300 | - | +1.17% |
| 06/04 | 1,408 | 1,409 | 1,386 | 1,397 | -0.78% | 3,359,600 | - | +2.57% |
| 06/03 | 1,382 | 1,415 | 1,361 | 1,408 | +3.91% | 5,315,700 | - | +3.53% |
| 06/02 | 1,330 | 1,368 | 1,318 | 1,355 | -0.15% | 5,527,800 | - | -0.15% |
| 06/01 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 06/01 | (IR情報)15:30 エス・ディー・エス バイオテックとアグロ カネショウを統合 新会社「出光クロップアーツ株式会社」を2027年4月に設立 |
| 06/01 | 1,385 | 1,391 | 1,333 | 1,357 | -3% | 4,699,300 | - | -0.07% |
| 05/29 | 1,298 | 1,399 | 1,296 | 1,399 | +6.39% | 11,955,600 | - | +2.79% |
| 05/28 | (5%ルール)出光千惠子(0.39%)日章興産(8.95%) |
| 05/28 | 1,301 | 1,322 | 1,300 | 1,315 | -0.9% | 8,683,900 | - | -3.52% |
| 05/27 | 1,306 | 1,330 | 1,306 | 1,327 | +1.61% | 4,124,300 | - | -3.07% |
| 05/26 | (IR情報)16:00 (訂正)「中期経営計画(2026-2030年度)」の一部訂正に関するお知らせ |
| 05/26 | 1,303 | 1,310 | 1,285 | 1,306 | -0.53% | 3,226,800 | - | -5.16% |
| 05/25 | 1,332 | 1,342 | 1,303 | 1,313 | -1.43% | 3,597,500 | - | -5.2% |
| 05/22 | 1,331 | 1,339 | 1,321 | 1,332 | -1.04% | 4,180,400 | - | -4.45% |
| 05/21 | 1,357 | 1,372 | 1,337 | 1,346 | -2.11% | 3,702,000 | - | -3.99% |
| 05/20 | (IR情報)15:00 固体電解質(全固体電池材料)大型パイロット装置の建設に向け、立柱式を実施 |
| 05/20 | 1,377 | 1,394 | 1,371 | 1,375 | -0.15% | 4,665,700 | - | -2.48% |
| 05/19 | 1,388 | 1,395 | 1,353 | 1,377 | +0.81% | 4,699,300 | - | -2.82% |
| 05/18 | 1,434 | 1,446 | 1,366 | 1,366 | -4.34% | 5,863,400 | - | -4.14% |
| 05/15 | 1,418 | 1,448 | 1,405 | 1,428 | +0.71% | 6,853,600 | - | -0.63% |
| 05/14 | 1,388 | 1,426 | 1,366 | 1,418 | +2.09% | 6,963,600 | - | -1.87% |
| 05/13 | 1,320 | 1,406 | 1,319 | 1,389 | -0.36% | 8,769,600 | - | -4.34% |
| 05/12 | (IR情報)15:30 代表取締役及び役員の異動内定に関するお知らせ |
| 05/12 | (IR情報)15:30 業績連動型株式報酬制度の継続及び改定に関するお知らせ |
| 05/12 | (IR情報)15:30 中期経営計画(2026-2030年度) |
| 05/12 | (IR情報)15:30 中期経営計画(2026-2030年度)の策定およびIFRS任意適用について |
| 05/12 | (IR情報)15:30 自己株式取得に係る事項の決定および自己株式の消却に関するお知らせ |
| 05/12 | (IR情報)15:30 業績予想値と決算値との差異に関するお知らせ |
| 05/12 | (IR情報)15:30 2025年度決算説明資料 |
| 05/12 | (IR情報)15:30 2026年3月期決算短信〔日本基準〕(連結) |
| 05/12 | 1,372 | 1,410 | 1,371 | 1,394 | +2.5% | 4,718,800 | - | -4.39% |
| 05/11 | 1,329 | 1,366 | 1,323 | 1,360 | +1.42% | 3,701,300 | - | -7.29% |
| 05/08 | 1,370 | 1,375 | 1,327 | 1,341 | -2.12% | 5,627,400 | - | -9.02% |
| 05/07 | (IR情報)13:00 自己株式の取得状況に関するお知らせ |