| 2024 |
| 04/24 | 2,400 | 2,439 | 2,376 | 2,416 | +1.51% | 32,700 | 620億512万 | +4.09% |
| 04/23 | 2,382 | 2,420 | 2,378 | 2,380 | +0.68% | 18,900 | 610億8120万 | +2.85% |
| 04/22 | 2,400 | 2,400 | 2,345 | 2,364 | -2.43% | 44,200 | 606億7057万 | +2.38% |
| 04/19 | 2,408 | 2,459 | 2,398 | 2,423 | +0.75% | 49,400 | 621億8477万 | +5.21% |
| 04/18 | 2,397 | 2,423 | 2,371 | 2,405 | +1.99% | 22,400 | 617億2281万 | +4.79% |
| 04/17 | 2,411 | 2,418 | 2,338 | 2,358 | -2.2% | 31,500 | 605億1659万 | +3.06% |
| 04/16 | 2,450 | 2,456 | 2,382 | 2,411 | -1.71% | 52,000 | 618億7680万 | +5.61% |
| 04/15 | 2,417 | 2,459 | 2,391 | 2,453 | +0.25% | 27,200 | 629億5470万 | +7.87% |
| 04/12 | 2,391 | 2,447 | 2,391 | 2,447 | +2.47% | 27,700 | 628億72万 | +8.04% |
| 04/11 | （自社株買い）取締役会(2024年2月9日)での決議状況(取得期間2024年2月13日～2024年9月30日) |
| 04/11 | 2,440 | 2,443 | 2,386 | 2,388 | -3.12% | 42,800 | 612億8652万 | +5.8% |
| 04/10 | 2,431 | 2,489 | 2,431 | 2,465 | +1.52% | 75,000 | 632億6267万 | +9.46% |
| 04/09 | 2,346 | 2,437 | 2,345 | 2,428 | +5.47% | 71,100 | 623億1309万 | +8.2% |
| 04/08 | 2,249 | 2,305 | 2,249 | 2,302 | +2.54% | 32,400 | 590億7938万 | +3.04% |
| 04/05 | 2,250 | 2,260 | 2,216 | 2,245 | -1.06% | 27,200 | 576億1651万 | +0.72% |
| 04/04 | 2,220 | 2,273 | 2,220 | 2,269 | +2.25% | 46,200 | 582億3246万 | +1.79% |
| 04/03 | 2,240 | 2,240 | 2,201 | 2,219 | -1.64% | 41,900 | 569億4924万 | -0.4% |
| 04/02 | 2,220 | 2,267 | 2,220 | 2,256 | +1.62% | 54,600 | 578億9882万 | +1.12% |
| 04/01 | （IR情報）13:00 自己株式の取得状況に関するお知らせ |
| 04/01 | 2,243 | 2,243 | 2,205 | 2,220 | +0.14% | 35,800 | 569億7490万 | -0.58% |
| 03/29 | 2,186 | 2,217 | 2,174 | 2,217 | +1% | 33,300 | 568億9791万 | -0.94% |
| 03/28 | 2,207 | 2,233 | 2,186 | 2,195 | -1.08% | 30,300 | 563億3329万 | -2.18% |
| 03/27 | 2,212 | 2,230 | 2,202 | 2,219 | +0.54% | 33,900 | 569億4924万 | -1.38% |
| 03/26 | （IR情報）15:00 株主名簿管理人及び特別口座の口座管理機関変更のお知らせ |
| 03/26 | 2,204 | 2,207 | 2,182 | 2,207 | -0.09% | 28,600 | 566億4127万 | -2.13% |
| 03/25 | 2,274 | 2,274 | 2,209 | 2,209 | -2.52% | 44,800 | 566億9259万 | -2.17% |
| 03/22 | 2,278 | 2,289 | 2,253 | 2,266 | -0.18% | 29,700 | 581億5546万 | +0.22% |
| 03/21 | 2,233 | 2,281 | 2,233 | 2,270 | +1.84% | 60,900 | 582億5812万 | +0.27% |
| 03/19 | 2,248 | 2,248 | 2,213 | 2,229 | -1.2% | 33,700 | 572億588万 | -1.76% |
| 03/18 | 2,233 | 2,262 | 2,214 | 2,256 | +2.27% | 54,000 | 578億9882万 | -0.62% |
| 03/15 | 2,215 | 2,215 | 2,170 | 2,206 | -0.76% | 144,900 | 566億1560万 | -2.56% |
| 03/14 | 2,266 | 2,270 | 2,223 | 2,223 | -0.85% | 32,500 | 570億5190万 | -1.72% |
| 03/13 | 2,243 | 2,268 | 2,226 | 2,242 | +0.81% | 38,900 | 575億3952万 | -0.84% |
| 03/12 | （自社株買い）取締役会(2024年2月9日)での決議状況(取得期間2024年2月13日～2024年9月30日) |
| 03/12 | 2,185 | 2,224 | 2,174 | 2,224 | +1.32% | 29,000 | 570億7756万 | -1.55% |
| 03/11 | 2,214 | 2,225 | 2,173 | 2,195 | -1.79% | 36,800 | 563億3329万 | -2.75% |
| 03/08 | 2,225 | 2,260 | 2,220 | 2,235 | +0.13% | 42,500 | 573億5987万 | -0.97% |
| 03/07 | 2,274 | 2,274 | 2,224 | 2,232 | -1.85% | 31,000 | 572億8288万 | -1.02% |
| 03/06 | 2,220 | 2,294 | 2,200 | 2,274 | +0.93% | 51,200 | 583億6078万 | +0.98% |
| 03/05 | 2,190 | 2,259 | 2,173 | 2,253 | +2.78% | 41,100 | 578億2183万 | +0.09% |
| 03/04 | （IR情報）11:30 自己株式の取得状況に関するお知らせ |
| 03/04 | 2,187 | 2,199 | 2,160 | 2,192 | +0.41% | 55,000 | 562億5630万 | -2.53% |
| 03/01 | 2,221 | 2,240 | 2,180 | 2,183 | -2.8% | 44,300 | 560億2532万 | -3.02% |
| 02/29 | 2,230 | 2,261 | 2,209 | 2,246 | +0.63% | 53,300 | 576億4218万 | -0.31% |
| 02/28 | 2,299 | 2,300 | 2,232 | 2,232 | -2.53% | 38,000 | 572億8288万 | -0.89% |
| 02/27 | 2,305 | 2,325 | 2,290 | 2,290 | -0.95% | 27,400 | 587億7141万 | +1.78% |
| 02/26 | 2,340 | 2,364 | 2,310 | 2,312 | -1.58% | 25,100 | 593億3603万 | +3.08% |
| 02/22 | 2,388 | 2,389 | 2,326 | 2,349 | -0.72% | 51,700 | 602億8561万 | +5.05% |
| 02/21 | 2,345 | 2,386 | 2,336 | 2,366 | +0.9% | 45,300 | 607億2190万 | +6.29% |
| 02/20 | 2,347 | 2,382 | 2,328 | 2,345 | -0.04% | 28,200 | 601億8295万 | +5.77% |
| 02/19 | 2,281 | 2,350 | 2,279 | 2,346 | +2.94% | 54,000 | 602億861万 | +6.11% |
| 02/16 | 2,281 | 2,302 | 2,251 | 2,279 | -0.09% | 44,000 | 584億8910万 | +3.45% |
| 02/15 | 2,345 | 2,384 | 2,280 | 2,281 | -2.31% | 68,000 | 585億4043万 | +3.87% |
| 02/14 | 2,370 | 2,370 | 2,297 | 2,335 | -2.38% | 83,800 | 599億2631万 | +6.62% |
| 02/13 | 2,363 | 2,439 | 2,264 | 2,392 | +5.7% | 281,000 | 613億8918万 | +9.67% |
| 02/09 | （IR情報）12:30 法人税等調整額(益)の計上および業績予想と実績との差異に関するお知らせ |
| 02/09 | （IR情報）12:30 剰余金の配当(増配)に関するお知らせ |
| 02/09 | （IR情報）12:30 執行役員の異動ならびに組織改編に関するお知らせ |
| 02/09 | （IR情報）12:30 自己株式取得に係る事項の決定に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得) |
| 02/09 | （IR情報）12:30 『OYOサステナビリティビジョン2030』および『OYO中期経営計画2026』策定に関するお知らせ |
| 02/09 | （IR情報）12:30 2023年12月期決算短信〔日本基準〕(連結) |
| 02/09 | （IR情報）12:30 OYO中期経営計画2026 2024-2026年度 |
| 02/09 | （IR情報）12:30 OYOサステナビリティビジョン2030 |
| 02/09 | 2,110 | 2,263 | 2,069 | 2,263 | +6.9% | 196,800 | 580億7847万 | +4.38% |
| 02/08 | 2,145 | 2,145 | 2,090 | 2,117 | -1.81% | 33,100 | 543億3147万 | -2.17% |
| 02/07 | 2,194 | 2,201 | 2,140 | 2,156 | -1.78% | 28,700 | 553億3238万 | -0.23% |
| 02/06 | 2,204 | 2,226 | 2,195 | 2,195 | +0.46% | 46,100 | 563億3329万 | +1.81% |
| 02/05 | 2,185 | 2,203 | 2,185 | 2,185 | +0.23% | 23,200 | 560億7665万 | +1.68% |
| 02/02 | 2,195 | 2,197 | 2,171 | 2,180 | +0.09% | 31,500 | 559億4833万 | +1.77% |
| 02/01 | 2,185 | 2,198 | 2,171 | 2,178 | -0.32% | 35,100 | 558億9700万 | +2.06% |
| 01/31 | 2,178 | 2,198 | 2,149 | 2,185 | +0.37% | 35,800 | 560億7665万 | +2.68% |
| 01/30 | 2,253 | 2,253 | 2,174 | 2,177 | -2.42% | 42,300 | 558億7134万 | +2.74% |
| 01/29 | 2,230 | 2,249 | 2,229 | 2,231 | +0.9% | 23,700 | 572億5721万 | +5.63% |
| 01/26 | 2,243 | 2,274 | 2,211 | 2,211 | -1.07% | 50,600 | 567億4392万 | +5.14% |
| 01/25 | 2,236 | 2,260 | 2,225 | 2,235 | +0.36% | 39,700 | 573億5987万 | +6.84% |
| 01/24 | 2,211 | 2,238 | 2,186 | 2,227 | -0.13% | 34,100 | 571億5455万 | +6.96% |
| 01/23 | 2,216 | 2,245 | 2,206 | 2,230 | +2.39% | 47,500 | 572億3155万 | +7.57% |
| 01/22 | 2,153 | 2,185 | 2,139 | 2,178 | +2.25% | 17,300 | 558億9700万 | +5.52% |
| 01/19 | 2,145 | 2,154 | 2,127 | 2,130 | -0.05% | 17,900 | 546億6511万 | +3.5% |
| 01/18 | 2,106 | 2,144 | 2,106 | 2,131 | +1.52% | 20,900 | 546億9077万 | +3.7% |
| 01/17 | 2,134 | 2,159 | 2,099 | 2,099 | -2.42% | 45,700 | 538億6951万 | +2.34% |
| 01/16 | 2,151 | 2,179 | 2,146 | 2,151 | -1.47% | 33,700 | 552億406万 | +4.98% |
| 01/15 | 2,145 | 2,200 | 2,145 | 2,183 | +2.3% | 45,200 | 560億2532万 | +6.7% |
| 01/12 | （IR情報）14:00 代表取締役の異動(退任)および役員等の候補者の選任に関するお知らせ |
| 01/12 | 2,149 | 2,150 | 2,111 | 2,134 | +0.38% | 35,200 | 547億6777万 | +4.61% |
| 01/11 | 2,130 | 2,146 | 2,123 | 2,126 | +0.47% | 41,400 | 545億6245万 | +4.37% |
| 01/10 | 2,101 | 2,123 | 2,092 | 2,116 | +0.52% | 19,200 | 543億581万 | +3.98% |
| 01/09 | 2,095 | 2,117 | 2,085 | 2,105 | +0.96% | 29,800 | 540億2350万 | +3.49% |
| 01/05 | 2,153 | 2,160 | 2,085 | 2,085 | -2.8% | 43,200 | 535億1021万 | +2.61% |
| 01/04 | 2,102 | 2,149 | 2,047 | 2,145 | +4.53% | 80,300 | 550億5008万 | +5.56% |
| 2023 |
| 12/29 | 2,042 | 2,052 | 2,012 | 2,052 | +1.08% | 34,400 | 526億6329万 | +1.18% |
| 12/28 | 2,002 | 2,032 | 1,989 | 2,030 | +0.15% | 26,900 | 520億9867万 | +0.05% |
| 12/27 | 2,013 | 2,028 | 2,005 | 2,027 | +1.55% | 26,100 | 520億2168万 | -0.3% |
| 12/26 | 1,994 | 2,007 | 1,993 | 1,996 | +0.1% | 27,900 | 512億2608万 | -1.96% |
| 12/25 | 2,025 | 2,048 | 1,994 | 1,994 | -0.99% | 25,100 | 511億7475万 | -2.25% |
| 12/22 | 1,970 | 2,015 | 1,970 | 2,014 | +2.23% | 17,200 | 516億8804万 | -1.42% |
| 12/21 | 1,995 | 1,995 | 1,968 | 1,970 | -1.84% | 22,300 | 505億5881万 | -3.71% |
| 12/20 | 1,988 | 2,022 | 1,988 | 2,007 | +0.96% | 17,600 | 515億839万 | -2.19% |
| 12/19 | 1,967 | 1,988 | 1,950 | 1,988 | +2.05% | 17,800 | 510億2077万 | -3.35% |
| 12/18 | 1,956 | 1,963 | 1,926 | 1,948 | -1.96% | 29,200 | 499億9419万 | -5.57% |
| 12/15 | 1,988 | 2,007 | 1,981 | 1,987 | -0.15% | 27,600 | 509億9510万 | -4.33% |
| 12/14 | 2,006 | 2,027 | 1,985 | 1,990 | -0.75% | 27,800 | 510億7210万 | -4.92% |
| 12/13 | （IR情報）15:40 三洋テクノマリン株式会社の株式の取得(子会社化)に関するお知らせ |
| 12/13 | 2,026 | 2,035 | 1,997 | 2,005 | -0.99% | 41,300 | 514億5706万 | -4.89% |
| 12/12 | 2,052 | 2,052 | 2,017 | 2,025 | -1.56% | 33,800 | 519億7035万 | -4.62% |
| 12/11 | 2,046 | 2,069 | 2,030 | 2,057 | +0.93% | 25,200 | 527億9161万 | -3.74% |
| 12/08 | 2,062 | 2,081 | 2,030 | 2,038 | -0.44% | 38,400 | 523億399万 | -5.12% |
| 12/07 | 2,056 | 2,092 | 2,047 | 2,047 | -1.63% | 23,000 | 525億3497万 | -5.28% |
| 12/06 | 2,039 | 2,092 | 2,039 | 2,081 | +2.92% | 23,000 | 534億756万 | -4.1% |
| 12/05 | 2,051 | 2,072 | 2,022 | 2,022 | -1.94% | 27,700 | 518億9336万 | -7.08% |
| 12/04 | 2,052 | 2,071 | 2,029 | 2,062 | -0.58% | 35,400 | 529億1993万 | -5.72% |
| 12/01 | 2,095 | 2,111 | 2,074 | 2,074 | -0.81% | 21,500 | 532億2790万 | -5.43% |
| 11/30 | 2,073 | 2,091 | 2,051 | 2,091 | +1.01% | 19,300 | 536億6420万 | -4.95% |
| 11/29 | 2,080 | 2,101 | 2,068 | 2,070 | -0.48% | 18,600 | 531億2525万 | -6.17% |
| 11/28 | 2,046 | 2,094 | 2,046 | 2,080 | +1.56% | 25,000 | 533億8189万 | -5.97% |
