| 2026 |
| 04/21 | 1,990 | 2,003 | 1,979 | 1,995 | +0.86% | 1,897,900 | 8013億6682万 | +2.73% |
| 04/20 | 2,022 | 2,032 | 1,978 | 1,978 | -1.25% | 2,092,200 | 7945億3813万 | +1.96% |
| 04/17 | 2,026 | 2,026 | 1,997 | 2,003 | -1.33% | 1,686,500 | 8045億8032万 | +3.35% |
| 04/16 | 2,006 | 2,044 | 1,998 | 2,030 | +1.5% | 2,332,800 | 8154億2588万 | +4.86% |
| 04/15 | 1,978 | 2,018 | 1,977 | 2,000 | +2.67% | 3,062,900 | 8033億7526万 | +3.36% |
| 04/14 | 1,974 | 1,977 | 1,936 | 1,948 | -0.1% | 2,135,300 | 7824億8750万 | +0.57% |
| 04/13 | （自社株買い）取締役会(2026年2月5日)での決議状況(取得期間2026年2月6日～2026年7月31日) |
| 04/13 | 1,950 | 1,968 | 1,934 | 1,950 | -1.12% | 2,572,200 | 7832億9087万 | +0.52% |
| 04/10 | 1,986 | 2,017 | 1,969 | 1,972 | -0.6% | 2,750,700 | 7921億2800万 | +1.23% |
| 04/09 | 2,087 | 2,087 | 1,983 | 1,984 | -5.16% | 5,057,500 | 7969億4825万 | +1.54% |
| 04/08 | 2,029 | 2,108 | 2,016 | 2,092 | +9.47% | 6,581,100 | 8403億3052万 | +6.79% |
| 04/07 | 1,911 | 1,918 | 1,892 | 1,911 | -0.1% | 3,227,700 | 7676億2506万 | -2.7% |
| 04/06 | 1,892 | 1,925 | 1,878 | 1,913 | +1.7% | 3,141,600 | 7684億2843万 | -3.43% |
| 04/03 | （5%ルール）ブラックロック(ネザーランド)BV(BlackRock (Neth…（0.14%）ブラックロック(ルクセンブルグ)エス・エー(Black…（0.11%）ブラックロック・アセット・マネジメント・アイルラ…（0.23%）ブラックロック・アドバイザーズ・エルエルシー(B…（0.11%）ブラックロック・インスティテューショナル・トラス…（1.17%）ブラックロック・ジャパン（1.8%）ブラックロック・ファンド・アドバイザーズ(Black…（1.23%）ブラックロック・ファンド・マネジャーズ・リミテッ…（0.14%）ブラックロック・フィナンシャル・マネジメント・イ…（0.24%） |
| 04/03 | 1,860 | 1,886 | 1,853 | 1,881 | +1.18% | 3,219,000 | 7555億7443万 | -5.95% |
| 04/02 | 1,949 | 1,954 | 1,859 | 1,859 | -3.73% | 3,664,200 | 7467億3730万 | -7.88% |
| 04/01 | （IR情報）11:00 自己株式の取得状況に関するお知らせ |
| 04/01 | 1,915 | 1,931 | 1,877 | 1,931 | +3.87% | 3,250,700 | 7756億5881万 | -5.06% |
| 03/31 | 1,871 | 1,896 | 1,846 | 1,859 | -1.12% | 3,072,300 | 7467億3730万 | -9.32% |
| 03/30 | 1,816 | 1,884 | 1,812 | 1,880 | -3.98% | 2,731,000 | 7551億7274万 | -9.09% |
| 03/27 | 1,937 | 1,967 | 1,914 | 1,958 | +1.08% | 2,794,100 | 7865億437万 | -6.23% |
| 03/26 | 1,932 | 1,943 | 1,912 | 1,937 | +0.62% | 2,340,000 | 7780億6893万 | -7.89% |
| 03/25 | 1,942 | 1,944 | 1,920 | 1,925 | +2.18% | 2,914,300 | 7732億4868万 | -9.2% |
| 03/24 | 1,891 | 1,894 | 1,863 | 1,884 | +4.03% | 4,834,700 | 7567億7949万 | -11.8% |
| 03/23 | 1,831 | 1,835 | 1,762 | 1,811 | -6.21% | 6,165,100 | 7274億5629万 | -15.96% |
| 03/19 | 1,971 | 1,978 | 1,918 | 1,931 | -2.77% | 5,130,100 | 7756億5881万 | -11.38% |
| 03/18 | 1,966 | 1,986 | 1,945 | 1,986 | +2.8% | 2,869,000 | 7977億5163万 | -9.65% |
| 03/18 | （空売り報告）モルガン・スタンレーMUFG証券 1,674,843株（0.41%）-0.37%義務消失 |
| 03/17 | 1,948 | 1,964 | 1,927 | 1,932 | -0.36% | 2,792,100 | 7760億6050万 | -12.66% |
| 03/17 | （空売り報告）モルガン・スタンレーMUFG証券 3,163,143株（0.78%）-0.06% |
| 03/16 | 1,878 | 1,939 | 1,878 | 1,939 | +0.36% | 4,677,800 | 7788億7231万 | -13.01% |
| 03/13 | （自社株買い）取締役会(2026年2月5日)での決議状況(取得期間2026年2月6日～2026年7月31日) |
| 03/13 | 1,888 | 1,944 | 1,887 | 1,932 | -1.02% | 4,900,100 | 7760億6050万 | -13.83% |
| 03/13 | （空売り報告）モルガン・スタンレーMUFG証券 3,408,043株（0.84%）+0.08% |
| 03/12 | 1,989 | 1,995 | 1,925 | 1,952 | -3.37% | 4,597,600 | 7840億9425万 | -13.63% |
| 03/12 | （空売り報告）モルガン・スタンレーMUFG証券 3,086,456株（0.76%）-0.09% |
| 03/11 | 2,008 | 2,057 | 2,005 | 2,020 | -1.46% | 5,144,000 | 8114億901万 | -11.13% |
| 03/11 | （空売り報告）モルガン・スタンレーMUFG証券 3,418,356株（0.85%）+0.28% |
| 03/10 | 2,054 | 2,079 | 2,001 | 2,050 | +2.3% | 3,349,600 | 8234億5964万 | -10.13% |
| 03/10 | （空売り報告）モルガン・スタンレーMUFG証券 2,325,986株（0.57%）新規 |
| 03/09 | 2,020 | 2,041 | 1,940 | 2,004 | -7.05% | 4,555,800 | 8049億8201万 | -12.45% |
| 03/06 | 2,081 | 2,156 | 2,076 | 2,156 | +1.46% | 2,375,400 | 8660億3853万 | -6.22% |
| 03/05 | 2,185 | 2,194 | 2,124 | 2,125 | +0.95% | 5,123,000 | 8535億8621万 | -7.69% |
| 03/04 | 2,138 | 2,166 | 2,079 | 2,105 | -5.65% | 4,372,200 | 8455億5246万 | -8.76% |
| 03/03 | 2,307 | 2,312 | 2,225 | 2,231 | -4.49% | 3,494,300 | 8961億6510万 | -3.5% |
| 03/02 | （IR情報）11:00 自己株式の取得状況に関するお知らせ |
| 03/02 | 2,317 | 2,343 | 2,274 | 2,336 | -1.85% | 2,563,800 | 9383億4230万 | +0.99% |
| 02/27 | 2,321 | 2,381 | 2,305 | 2,380 | +2.5% | 2,395,100 | 9560億1655万 | +3.12% |
| 02/26 | 2,275 | 2,330 | 2,264 | 2,322 | +2.07% | 3,034,700 | 9327億1867万 | +0.96% |
| 02/25 | 2,340 | 2,375 | 2,273 | 2,275 | -2.19% | 2,985,500 | 9138億3935万 | -0.78% |
| 02/24 | 2,294 | 2,332 | 2,251 | 2,326 | +0.52% | 2,836,800 | 9343億2542万 | +1.62% |
| 02/20 | 2,338 | 2,355 | 2,278 | 2,314 | -1.82% | 2,217,200 | 9295億517万 | +1.36% |
| 02/19 | 2,361 | 2,378 | 2,346 | 2,357 | +0.21% | 2,230,100 | 9467億7774万 | +3.65% |
| 02/18 | 2,353 | 2,372 | 2,340 | 2,352 | -0.34% | 1,591,600 | 9447億6930万 | +3.93% |
| 02/17 | 2,335 | 2,379 | 2,330 | 2,360 | +1.64% | 1,956,300 | 9479億8280万 | +4.84% |
| 02/16 | 2,380 | 2,393 | 2,321 | 2,322 | -1.86% | 2,499,400 | 9327億1867万 | +3.71% |
| 02/13 | 2,394 | 2,400 | 2,348 | 2,366 | -1.42% | 2,042,000 | 9503億9293万 | +6.24% |
| 02/12 | 2,399 | 2,423 | 2,384 | 2,400 | 0% | 2,075,400 | 9640億5031万 | +8.3% |
| 02/10 | 2,345 | 2,400 | 2,338 | 2,400 | +2.04% | 2,164,200 | 9640億5031万 | +8.99% |
| 02/09 | 2,430 | 2,434 | 2,352 | 2,352 | +0.34% | 3,916,500 | 9447億6930万 | +7.54% |
| 02/06 | 2,210 | 2,351 | 2,210 | 2,344 | +3.21% | 4,004,300 | 9415億5580万 | +7.87% |
| 02/05 | （IR情報）14:50 代表取締役の異動及び取締役・監査役の体制変更に関するお知らせ |
| 02/05 | （IR情報）14:50 コーポレートフェロー制度の導入について |
| 02/05 | （IR情報）13:00 2026年3月期第3四半期決算短信[IFRS](連結) |
| 02/05 | （IR情報）13:00 2025年度第3四半期決算の概要及び2025年度業績予想の概要 |
| 02/05 | （IR情報）13:00 自己株式取得及び自己株式消却に係る事項の決定に関するお知らせ |
| 02/05 | 2,478 | 2,478 | 2,197 | 2,271 | -4.74% | 8,654,100 | 9122億3260万 | +5.14% |
| 02/04 | 2,300 | 2,412 | 2,292 | 2,384 | +5.3% | 3,643,100 | 9576億2330万 | +10.99% |
| 02/03 | 2,254 | 2,282 | 2,243 | 2,264 | +1.34% | 2,359,700 | 9094億2079万 | +6.19% |
| 02/02 | 2,277 | 2,320 | 2,232 | 2,234 | -0.98% | 1,980,300 | 8973億7016万 | +5.38% |
| 01/30 | 2,234 | 2,256 | 2,218 | 2,256 | +0.67% | 2,499,800 | 9062億729万 | +6.97% |
| 01/29 | 2,211 | 2,247 | 2,172 | 2,241 | +0.67% | 1,606,700 | 9001億8197万 | +6.87% |
| 01/28 | 2,244 | 2,250 | 2,221 | 2,226 | -1.11% | 1,500,000 | 8941億5666万 | +6.76% |
| 01/27 | 2,235 | 2,273 | 2,215 | 2,251 | +0.72% | 2,188,100 | 9041億9885万 | +8.59% |
| 01/26 | 2,200 | 2,253 | 2,200 | 2,235 | -0.45% | 1,967,400 | 8977億7185万 | +8.55% |
| 01/23 | 2,225 | 2,247 | 2,206 | 2,245 | +0.72% | 1,456,200 | 9017億8872万 | +9.67% |
| 01/22 | 2,181 | 2,240 | 2,180 | 2,229 | +2.96% | 2,311,600 | 8953億6172万 | +9.48% |
| 01/21 | 2,121 | 2,165 | 2,119 | 2,165 | +0.14% | 1,286,800 | 8696億5371万 | +6.86% |
| 01/20 | 2,165 | 2,171 | 2,142 | 2,162 | -0.37% | 1,452,200 | 8684億4865万 | +7.19% |
| 01/19 | 2,158 | 2,179 | 2,108 | 2,170 | +0.09% | 1,721,300 | 8716億6215万 | +8.01% |
| 01/16 | 2,116 | 2,173 | 2,111 | 2,168 | +3.04% | 2,631,400 | 8708億5878万 | +8.4% |
| 01/15 | 2,090 | 2,118 | 2,083 | 2,104 | +1.01% | 1,565,700 | 8451億5077万 | +5.73% |
| 01/14 | 2,055 | 2,099 | 2,054 | 2,083 | +1.41% | 1,796,000 | 8367億1533万 | +5.15% |
| 01/13 | 2,083 | 2,084 | 2,047 | 2,054 | +0.39% | 1,612,000 | 8250億6639万 | +3.95% |
| 01/09 | 2,067 | 2,080 | 2,028 | 2,046 | +0.89% | 1,435,300 | 8218億5289万 | +3.81% |
| 01/08 | 2,062 | 2,072 | 2,028 | 2,028 | -2.45% | 1,450,200 | 8146億2251万 | +3.05% |
| 01/07 | 2,070 | 2,082 | 2,058 | 2,079 | +0.68% | 1,804,700 | 8351億858万 | +5.8% |
| 01/06 | 2,040 | 2,095 | 2,038 | 2,065 | +2.28% | 2,287,200 | 8294億8495万 | +5.3% |
| 01/05 | 2,041 | 2,063 | 2,011 | 2,019 | +0.85% | 1,999,700 | 8110億732万 | +3.27% |
| 01/01 | 株式分割 1→2 |
| 2025 |
| 12/30 | 2,021 | 2,025 | 1,997 | 2,002 | -0.65% | 1,457,100 | 8041億7863万 | +2.61% |
| 12/29 | 1,978 | 2,022 | 1,973 | 2,015 | +2% | 1,751,300 | 8094億57万 | +3.6% |
| 12/26 | 1,974 | 1,989 | 1,968 | 1,976 | -0.03% | 1,388,000 | 7935億3391万 | +1.93% |
| 12/25 | 1,990 | 1,990 | 1,960 | 1,976 | -0.05% | 1,728,000 | 7937億3475万 | +2.33% |
| 12/24 | 1,982 | 2,009 | 1,970 | 1,977 | +0.61% | 2,686,000 | 7941億3644万 | +2.86% |
| 12/23 | 1,955 | 1,975 | 1,946 | 1,965 | +0.49% | 1,401,600 | 7893億1619万 | +2.66% |
| 12/22 | 1,939 | 1,967 | 1,933 | 1,956 | +1.16% | 1,073,800 | 7855億16万 | +2.6% |
| 12/19 | （IR情報）11:00 「千葉地区エチレン装置集約による生産最適化」の最終合意について |
| 12/19 | 1,914 | 1,938 | 1,913 | 1,933 | +0.83% | 1,441,800 | 7764億6218万 | +1.79% |
| 12/18 | 1,932 | 1,934 | 1,908 | 1,917 | +0.13% | 1,026,400 | 7700億3518万 | +1.21% |
| 12/17 | 1,925 | 1,935 | 1,898 | 1,915 | -1.19% | 2,076,600 | 7690億3096万 | +1.4% |
| 12/16 | 1,972 | 1,974 | 1,938 | 1,938 | -1.32% | 1,146,400 | 7782億6978万 | +2.84% |
| 12/15 | 1,984 | 1,984 | 1,954 | 1,964 | -0.38% | 882,600 | 7887億1366万 | +4.44% |
| 12/12 | 1,965 | 1,987 | 1,959 | 1,971 | +1.1% | 1,777,000 | 7917億2631万 | +5.18% |
| 12/11 | 1,990 | 1,992 | 1,939 | 1,950 | -0.59% | 1,151,600 | 7830億9003万 | +4.42% |
| 12/10 | 1,942 | 1,980 | 1,936 | 1,961 | +1.55% | 1,633,800 | 7877億944万 | +5.37% |
| 12/09 | 1,924 | 1,934 | 1,912 | 1,931 | +0.6% | 1,660,600 | 7756億5881万 | +4.04% |
| 12/08 | 1,905 | 1,924 | 1,898 | 1,920 | +1.29% | 1,134,200 | 7710億3940万 | +3.7% |
| 12/05 | 1,933 | 1,944 | 1,895 | 1,895 | -3.19% | 1,686,000 | 7611億9805万 | +2.54% |
| 12/04 | 1,920 | 1,959 | 1,913 | 1,958 | +1.53% | 1,327,400 | 7863億353万 | +6.1% |
| 12/03 | 1,945 | 1,956 | 1,918 | 1,928 | -1.81% | 1,401,800 | 7744億5375万 | +4.73% |
| 12/02 | 1,953 | 1,970 | 1,946 | 1,964 | +0.54% | 1,418,400 | 7887億1366万 | +6.77% |
| 12/01 | 1,994 | 2,009 | 1,953 | 1,953 | -0.76% | 1,845,200 | 7844億9594万 | +6.37% |
| 11/28 | 1,950 | 1,973 | 1,940 | 1,968 | +1.84% | 2,702,400 | 7905億2125万 | +7.42% |
| 11/27 | 1,913 | 1,965 | 1,910 | 1,933 | +1.5% | 3,187,400 | 7762億6134万 | +5.72% |
| 11/26 | 1,874 | 1,915 | 1,863 | 1,904 | +2.89% | 2,953,800 | 7648億1324万 | +4.39% |
| 11/25 | 1,860 | 1,870 | 1,841 | 1,851 | -0.48% | 1,835,800 | 7433億2295万 | +1.62% |
| 11/21 | 1,772 | 1,867 | 1,771 | 1,860 | +3.68% | 4,771,800 | 7469億3814万 | +2.17% |
| 11/20 | （5%ルール）ノムラインターナショナルピーエルシー(NOMURA IN…（0.02%）野村アセットマネジメント（5.81%）野村證券（0.24%） |
10年以上蓄積したファイナンスデータとAIを掛け合わせて、投資の意思決定を加速させるポジションです。
