| 2021 |
| 06/28 | 1,258 | 1,287 | 1,258 | 1,273 | +1.27% | 6,200 | 42億83万 | -2.38% |
| 06/25 | 1,261 | 1,274 | 1,247 | 1,257 | -0.32% | 10,900 | 41億4803万 | -3.6% |
| 06/24 | 1,288 | 1,356 | 1,251 | 1,261 | -3.52% | 30,700 | 41億6123万 | -3.3% |
| 06/23 | 1,338 | 1,338 | 1,293 | 1,307 | -2.32% | 6,900 | 43億1303万 | +0.46% |
| 06/22 | 1,350 | 1,350 | 1,316 | 1,338 | +1.06% | 6,600 | 44億1533万 | +3.24% |
| 06/21 | 1,360 | 1,370 | 1,296 | 1,324 | -5.63% | 25,800 | 43億6913万 | +2.72% |
| 06/18 | 1,413 | 1,443 | 1,373 | 1,403 | -0.71% | 33,100 | 46億2982万 | +9.61% |
| 06/17 | 1,326 | 1,418 | 1,326 | 1,413 | +4.98% | 43,200 | 46億6282万 | +11.44% |
| 06/16 | 1,329 | 1,359 | 1,327 | 1,346 | -0.3% | 7,200 | 44億4173万 | +7.25% |
| 06/15 | 1,317 | 1,361 | 1,281 | 1,350 | +2.51% | 38,800 | 44億5493万 | +8.35% |
| 06/14 | 1,280 | 1,326 | 1,280 | 1,317 | +2.89% | 14,900 | 43億4603万 | +6.38% |
| 06/11 | 1,320 | 1,320 | 1,280 | 1,280 | -2.88% | 6,300 | 42億2393万 | +3.81% |
| 06/10 | 1,320 | 1,334 | 1,301 | 1,318 | -0.15% | 11,400 | 43億4933万 | +7.07% |
| 06/09 | 1,296 | 1,328 | 1,285 | 1,320 | +2.72% | 21,600 | 43億5593万 | +7.76% |
| 06/08 | 1,295 | 1,297 | 1,280 | 1,285 | -0.77% | 2,600 | 42億4043万 | +5.33% |
| 06/07 | 1,265 | 1,310 | 1,229 | 1,295 | +2.37% | 20,100 | 42億7343万 | +6.58% |
| 06/04 | 1,264 | 1,271 | 1,233 | 1,265 | +0.08% | 7,100 | 41億7443万 | +4.46% |
| 06/03 | 1,236 | 1,276 | 1,236 | 1,264 | +1.94% | 14,700 | 41億7113万 | +4.72% |
| 06/02 | 1,200 | 1,257 | 1,199 | 1,240 | -0.64% | 34,600 | 40億9193万 | +2.9% |
| 06/01 | （IR情報）16:30 株式会社リファインバースグループの上場承認に関するお知らせ |
| 06/01 | 1,291 | 1,291 | 1,244 | 1,248 | -3.78% | 12,500 | 41億1833万 | +3.57% |
| 05/31 | 1,319 | 1,338 | 1,267 | 1,297 | -1.14% | 35,500 | 42億8003万 | +7.81% |
| 05/28 | 1,285 | 1,312 | 1,282 | 1,312 | +2.1% | 17,200 | 43億2953万 | +9.15% |
| 05/27 | 1,272 | 1,301 | 1,266 | 1,285 | -0.93% | 9,700 | 42億4043万 | +6.82% |
| 05/26 | 1,296 | 1,302 | 1,261 | 1,297 | -0.54% | 19,800 | 42億8003万 | +7.63% |
| 05/25 | 1,276 | 1,315 | 1,260 | 1,304 | +2.44% | 39,600 | 43億313万 | +8.22% |
| 05/24 | 1,255 | 1,284 | 1,225 | 1,273 | +1.52% | 20,200 | 42億83万 | +5.73% |
| 05/21 | 1,198 | 1,259 | 1,192 | 1,254 | +4.67% | 32,100 | 41億3813万 | +4.15% |
| 05/20 | 1,173 | 1,210 | 1,168 | 1,198 | +1.61% | 8,700 | 39億5334万 | -0.58% |
| 05/19 | 1,132 | 1,183 | 1,132 | 1,179 | +2.79% | 16,600 | 38億9064万 | -2.48% |
| 05/18 | 1,125 | 1,161 | 1,116 | 1,147 | +2.5% | 12,500 | 37億8504万 | -5.44% |
| 05/17 | 1,145 | 1,145 | 1,088 | 1,119 | +2.29% | 21,500 | 36億9264万 | -8.28% |
| 05/14 | （IR情報）16:00 2021年6月期第3四半期決算短信〔日本基準〕(連結) |
| 05/14 | 1,105 | 1,105 | 1,066 | 1,094 | +1.48% | 24,300 | 36億1014万 | -10.84% |
| 05/13 | 1,096 | 1,131 | 1,066 | 1,078 | -4.01% | 32,700 | 35億5734万 | -12.71% |
| 05/12 | 1,154 | 1,154 | 1,090 | 1,123 | -2.77% | 42,100 | 37億584万 | -9.73% |
| 05/11 | 1,214 | 1,214 | 1,127 | 1,155 | -3.67% | 36,400 | 38億1144万 | -7.82% |
| 05/10 | 1,210 | 1,212 | 1,183 | 1,199 | -1.4% | 29,200 | 39億5664万 | -4.84% |
| 05/07 | 1,168 | 1,224 | 1,150 | 1,216 | +4.2% | 51,600 | 40億1273万 | -3.87% |
| 05/06 | 1,201 | 1,207 | 1,165 | 1,167 | -2.83% | 17,200 | 38億5104万 | -7.89% |
| 04/30 | 1,165 | 1,221 | 1,165 | 1,201 | +3.8% | 37,300 | 39億6323万 | -5.66% |
| 04/28 | 1,193 | 1,193 | 1,153 | 1,157 | -3.02% | 21,800 | 38億1804万 | -9.25% |
| 04/27 | 1,185 | 1,193 | 1,152 | 1,193 | +0.68% | 34,500 | 39億3684万 | -6.5% |
| 04/26 | 1,196 | 1,196 | 1,170 | 1,185 | -0.92% | 20,700 | 39億1044万 | -7.35% |
| 04/23 | 1,240 | 1,243 | 1,190 | 1,196 | -3.39% | 23,900 | 39億4674万 | -6.93% |
| 04/22 | 1,210 | 1,249 | 1,210 | 1,238 | +1.98% | 17,200 | 40億8533万 | -3.73% |
| 04/21 | 1,278 | 1,278 | 1,194 | 1,214 | -5.01% | 70,100 | 40億613万 | -5.53% |
| 04/20 | 1,310 | 1,310 | 1,275 | 1,278 | -3.26% | 21,600 | 42億1733万 | -0.54% |
| 04/19 | 1,351 | 1,351 | 1,315 | 1,321 | -0.45% | 31,900 | 43億5923万 | +2.96% |
| 04/16 | 1,328 | 1,350 | 1,310 | 1,327 | +0.68% | 47,100 | 43億7903万 | +3.75% |
| 04/15 | 1,253 | 1,318 | 1,253 | 1,318 | +4.11% | 47,700 | 43億4933万 | +3.62% |
| 04/14 | 1,291 | 1,291 | 1,255 | 1,266 | -1.02% | 26,500 | 41億7773万 | +0.16% |
| 04/13 | 1,280 | 1,299 | 1,276 | 1,279 | -0.23% | 19,300 | 42億2063万 | +1.75% |
| 04/12 | 1,317 | 1,331 | 1,278 | 1,282 | -1.31% | 53,300 | 42億3053万 | +2.4% |
| 04/09 | 1,282 | 1,305 | 1,275 | 1,299 | +1.33% | 24,200 | 42億8663万 | +4.42% |
| 04/08 | 1,293 | 1,300 | 1,270 | 1,282 | -1.91% | 34,900 | 42億3053万 | +3.64% |
| 04/07 | 1,297 | 1,317 | 1,280 | 1,307 | +0.77% | 30,900 | 43億1303万 | +6.09% |
| 04/06 | 1,330 | 1,369 | 1,285 | 1,297 | -0.84% | 113,800 | 42億8003万 | +5.79% |
| 04/05 | （IR情報）15:00 再生ナイロン樹脂「REAMIDE（リアミド）」の生産能力を増強 |
| 04/05 | 1,320 | 1,320 | 1,273 | 1,308 | +0.85% | 46,600 | 43億1633万 | +6.95% |
| 04/02 | 1,329 | 1,329 | 1,290 | 1,297 | -2.63% | 60,700 | 42億8003万 | +6.31% |
| 04/01 | 1,345 | 1,357 | 1,314 | 1,332 | -0.97% | 68,200 | 43億9553万 | +9.36% |
| 03/31 | 1,301 | 1,350 | 1,296 | 1,345 | +2.05% | 103,500 | 44億3843万 | +10.34% |
| 03/30 | 1,262 | 1,356 | 1,262 | 1,318 | +3.45% | 165,500 | 43億4933万 | +8.21% |
| 03/29 | 1,335 | 1,335 | 1,246 | 1,274 | -2.67% | 102,700 | 42億413万 | +4.43% |
| 03/26 | 1,249 | 1,309 | 1,247 | 1,309 | +4.47% | 103,500 | 43億1963万 | +7.21% |
| 03/25 | 1,177 | 1,278 | 1,177 | 1,253 | +5.47% | 126,000 | 41億3483万 | +2.62% |
| 03/24 | 1,236 | 1,250 | 1,171 | 1,188 | -5.56% | 153,300 | 39億2034万 | -3.02% |
| 03/23 | 1,355 | 1,365 | 1,243 | 1,258 | -6.75% | 198,700 | 41億5133万 | +2.28% |
| 03/22 | 1,293 | 1,358 | 1,266 | 1,349 | +12.14% | 335,000 | 44億5163万 | +9.5% |
| 03/19 | 1,211 | 1,226 | 1,186 | 1,203 | -2.2% | 58,800 | 39億6983万 | -2.2% |
| 03/18 | 1,215 | 1,260 | 1,207 | 1,230 | +1.32% | 64,100 | 40億5893万 | -0.49% |
| 03/17 | 1,213 | 1,232 | 1,195 | 1,214 | -1.14% | 48,900 | 40億613万 | -2.1% |
| 03/16 | 1,184 | 1,228 | 1,162 | 1,228 | +2.08% | 121,400 | 40億5233万 | -1.37% |
| 03/15 | 1,157 | 1,221 | 1,140 | 1,203 | +3.71% | 152,500 | 39億6983万 | -3.84% |
| 03/12 | 1,124 | 1,168 | 1,091 | 1,160 | +4.69% | 72,900 | 38億2794万 | -7.72% |
| 03/11 | 1,108 | 1,135 | 1,096 | 1,108 | -0.45% | 66,100 | 36億5634万 | -12.69% |
| 03/10 | 1,130 | 1,152 | 1,104 | 1,113 | -3.47% | 118,900 | 36億7284万 | -13.32% |
| 03/09 | 1,084 | 1,278 | 1,060 | 1,153 | +6.37% | 481,700 | 38億484万 | -10.76% |
| 03/08 | 1,125 | 1,125 | 1,081 | 1,084 | -3.47% | 62,700 | 35億7714万 | -16.81% |
| 03/05 | 1,130 | 1,133 | 1,067 | 1,123 | -1.4% | 100,600 | 37億584万 | -14.01% |
| 03/04 | 1,170 | 1,192 | 1,117 | 1,139 | -3.06% | 60,700 | 37億5864万 | -12.99% |
| 03/03 | 1,200 | 1,205 | 1,156 | 1,175 | -3.29% | 60,000 | 38億7744万 | -10.37% |
| 03/02 | 1,231 | 1,252 | 1,188 | 1,215 | -0.9% | 61,300 | 40億943万 | -7.39% |
| 03/01 | 1,285 | 1,316 | 1,216 | 1,226 | -2.78% | 121,000 | 40億4573万 | -6.48% |
| 02/26 | （IR情報）15:45 (変更)単独株式移転による持株会社体制への移行及び定款の一部変更並びに臨時株主総会招集のための基準日設定及び臨時株主総会の開催に関するお知らせ |
| 02/26 | 1,315 | 1,325 | 1,244 | 1,261 | -6.25% | 126,200 | 41億6123万 | -3.74% |
| 02/25 | 1,350 | 1,389 | 1,328 | 1,345 | +1.36% | 54,100 | 44億3843万 | +2.75% |
| 02/24 | 1,380 | 1,445 | 1,325 | 1,327 | -1.78% | 197,700 | 43億7903万 | +1.92% |
| 02/22 | 1,330 | 1,393 | 1,321 | 1,351 | +3.92% | 59,900 | 44億5823万 | +4.24% |
| 02/19 | 1,302 | 1,319 | 1,271 | 1,300 | -1.44% | 59,100 | 42億8993万 | +1.17% |
| 02/18 | 1,347 | 1,376 | 1,306 | 1,319 | -3.09% | 43,300 | 43億5263万 | +3.45% |
| 02/17 | 1,300 | 1,370 | 1,290 | 1,361 | +4.13% | 61,900 | 44億9123万 | +7.33% |
| 02/16 | 1,309 | 1,350 | 1,300 | 1,307 | +0.46% | 44,900 | 43億1303万 | +3.9% |
| 02/15 | 1,280 | 1,343 | 1,262 | 1,301 | -0.31% | 77,200 | 42億9323万 | +4.25% |
| 02/12 | （IR情報）16:40 2021年6月期第2四半期決算短信〔日本基準〕(連結) |
| 02/12 | 1,351 | 1,351 | 1,283 | 1,305 | -3.4% | 95,800 | 43億643万 | +5.5% |
| 02/10 | 1,340 | 1,387 | 1,336 | 1,351 | +2.27% | 63,300 | 44億5823万 | +10.11% |
| 02/09 | 1,354 | 1,360 | 1,287 | 1,321 | -2.08% | 102,100 | 43億5923万 | +8.81% |
| 02/08 | 1,370 | 1,396 | 1,334 | 1,349 | -2.39% | 108,200 | 44億5163万 | +12.23% |
| 02/05 | 1,397 | 1,413 | 1,350 | 1,382 | +1.99% | 191,600 | 45億6053万 | +16.13% |
| 02/04 | 1,431 | 1,467 | 1,336 | 1,355 | -7.26% | 295,800 | 44億7143万 | +15.22% |
| 02/03 | 1,455 | 1,490 | 1,396 | 1,461 | -1.62% | 360,700 | 48億2122万 | +25.84% |
| 02/02 | 1,350 | 1,570 | 1,350 | 1,485 | +14.14% | 1,035,000 | 49億42万 | +30.04% |
| 02/01 | 1,376 | 1,452 | 1,283 | 1,301 | -8.89% | 663,900 | 42億9323万 | +15.64% |
| 01/25 | （IR情報）16:30 ストック・オプション(新株予約権)の発行内容確定に関するお知らせ |
