| 2023 |
| 02/21 | 9,260 | 9,280 | 9,260 | 9,280 | +0.22% | 162,500 | 2998億1638万 | +0.43% |
| 02/20 | 9,260 | 9,260 | 9,250 | 9,260 | 0% | 59,900 | 2991億7022万 | +0.24% |
| 02/17 | （IR情報）12:00 お知らせ（役員人事等） |
| 02/17 | 9,260 | 9,260 | 9,240 | 9,260 | 0% | 118,600 | 2991億7022万 | +0.24% |
| 02/16 | 9,250 | 9,260 | 9,240 | 9,260 | +0.22% | 169,100 | 2991億7022万 | +0.25% |
| 02/15 | 9,240 | 9,260 | 9,240 | 9,240 | +0.22% | 292,700 | 2985億2407万 | +0.04% |
| 02/14 | 9,230 | 9,230 | 9,220 | 9,220 | 0% | 92,200 | 2978億7791万 | -0.18% |
| 02/13 | 9,230 | 9,230 | 9,220 | 9,220 | 0% | 43,400 | 2978億7791万 | -0.21% |
| 02/10 | （IR情報）11:30 2022年度3Q決算実績 |
| 02/10 | （IR情報）11:30 2023年3月期第3四半期決算短信[日本基準](連結) |
| 02/10 | 9,230 | 9,230 | 9,220 | 9,220 | 0% | 124,700 | 2978億7791万 | -0.22% |
| 02/09 | 9,230 | 9,240 | 9,220 | 9,220 | -0.11% | 215,100 | 2978億7791万 | -0.23% |
| 02/08 | 9,230 | 9,240 | 9,230 | 9,230 | 0% | 72,400 | 2982億99万 | -0.13% |
| 02/07 | 9,240 | 9,250 | 9,230 | 9,230 | 0% | 68,400 | 2982億99万 | -0.13% |
| 02/06 | 9,240 | 9,250 | 9,230 | 9,230 | -0.11% | 152,600 | 2982億99万 | -0.13% |
| 02/03 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 88,000 | 2985億2407万 | -0.03% |
| 02/02 | （IR情報）11:00 人事異動のお知らせ |
| 02/02 | 9,250 | 9,250 | 9,240 | 9,240 | 0% | 121,700 | 2985億2407万 | -0.04% |
| 02/01 | 9,250 | 9,250 | 9,240 | 9,240 | 0% | 88,600 | 2985億2407万 | -0.04% |
| 01/31 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 79,600 | 2985億2407万 | +1.09% |
| 01/30 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 64,500 | 2985億2407万 | +2.7% |
| 01/27 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 53,500 | 2985億2407万 | +4.69% |
| 01/26 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 33,200 | 2985億2407万 | +6.73% |
| 01/25 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 78,600 | 2985億2407万 | +8.86% |
| 01/24 | 9,250 | 9,250 | 9,240 | 9,240 | -0.11% | 99,400 | 2985億2407万 | +11.06% |
| 01/23 | 9,250 | 9,250 | 9,240 | 9,250 | +0.11% | 131,700 | 2988億4715万 | +13.46% |
| 01/20 | 9,250 | 9,250 | 9,240 | 9,240 | 0% | 128,900 | 2985億2407万 | +15.7% |
| 01/19 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 146,400 | 2985億2407万 | +18.2% |
| 01/18 | 9,240 | 9,250 | 9,230 | 9,240 | 0% | 241,600 | 2985億2407万 | +20.82% |
| 01/17 | 9,240 | 9,250 | 9,240 | 9,240 | 0% | 186,300 | 2985億2407万 | +23.5% |
| 01/16 | 9,250 | 9,250 | 9,240 | 9,240 | 0% | 204,600 | 2985億2407万 | +26.33% |
| 01/13 | 9,250 | 9,260 | 9,240 | 9,240 | -0.11% | 201,300 | 2985億2407万 | +29.29% |
| 01/12 | 9,260 | 9,260 | 9,250 | 9,250 | -0.11% | 190,000 | 2988億4715万 | +32.5% |
| 01/11 | 9,250 | 9,270 | 9,250 | 9,260 | 0% | 261,600 | 2991億7022万 | +35.92% |
| 01/10 | 9,250 | 9,260 | 9,240 | 9,260 | +0.11% | 173,700 | 2991億7022万 | +39.35% |
| 01/06 | 9,240 | 9,260 | 9,240 | 9,250 | +0.11% | 418,000 | 2988億4715万 | +42.77% |
| 01/05 | 9,240 | 9,250 | 9,230 | 9,240 | 0% | 218,200 | 2985億2407万 | +46.36% |
| 01/04 | 9,230 | 9,250 | 9,230 | 9,240 | 0% | 314,600 | 2985億2407万 | +50.24% |
| 2022 |
| 12/30 | 9,240 | 9,250 | 9,230 | 9,240 | 0% | 235,900 | 2985億2407万 | +54.33% |
| 12/29 | 9,250 | 9,250 | 9,240 | 9,240 | -0.11% | 442,100 | 2985億2407万 | +58.57% |
| 12/28 | 9,250 | 9,250 | 9,240 | 9,250 | 0% | 385,400 | 2988億4715万 | +63.14% |
| 12/27 | （5%ルール）三井物産（19.9%）日本製鉄（34.49%） |
| 12/27 | （5%ルール）日鉄建材（0.4%）三井物産（19.9%）日本製鉄（34.49%） |
| 12/27 | 9,240 | 9,250 | 9,230 | 9,250 | +0.11% | 307,600 | 2988億4715万 | +67.91% |
| 12/26 | 9,240 | 9,260 | 9,220 | 9,240 | +38.74% | 717,800 | 2985億2407万 | +72.87% |
| 12/23 | 6,660 | 6,660 | 6,660 | 6,660 | +17.67% | 34,300 | 2151億6994万 | +28.57% |
| 12/22 | 5,660 | 5,660 | 5,660 | 5,660 | +14.11% | 31,900 | 1828億6214万 | +10.59% |
| 12/21 | （IR情報）17:40 2023年3月期配当予想の修正(無配)に関するお知らせ |
| 12/21 | （IR情報）17:30 当社のその他の関係会社である日本製鉄株式会社による当社株式に対する公開買付けの開始予定に係る賛同の意見表明及び応募推奨に関するお知らせ |
| 12/21 | 5,010 | 5,020 | 4,960 | 4,960 | -1.2% | 149,300 | 1602億4668万 | -2.71% |
| 12/20 | 5,070 | 5,080 | 5,000 | 5,020 | 0% | 118,300 | 1621億8515万 | -1.67% |
| 12/19 | 5,010 | 5,040 | 5,010 | 5,020 | -0.2% | 66,200 | 1621億8515万 | -1.74% |
| 12/16 | 5,030 | 5,050 | 5,020 | 5,030 | -0.59% | 45,100 | 1625億823万 | -1.68% |
| 12/15 | 5,050 | 5,080 | 5,040 | 5,060 | -0.39% | 42,300 | 1634億7746万 | -1.23% |
| 12/14 | 5,030 | 5,080 | 5,010 | 5,080 | +1.2% | 65,600 | 1641億2362万 | -0.96% |
| 12/13 | 5,060 | 5,060 | 5,020 | 5,020 | 0% | 65,100 | 1621億8515万 | -2.24% |
| 12/12 | 5,050 | 5,050 | 5,020 | 5,020 | -0.99% | 79,400 | 1621億8515万 | -2.49% |
| 12/09 | 5,050 | 5,100 | 5,050 | 5,070 | +0.6% | 48,600 | 1638億54万 | -1.71% |
| 12/08 | 5,070 | 5,070 | 5,030 | 5,040 | -0.79% | 47,400 | 1628億3131万 | -2.42% |
| 12/07 | 5,070 | 5,100 | 5,060 | 5,080 | 0% | 41,600 | 1641億2362万 | -1.74% |
| 12/06 | 5,050 | 5,080 | 5,030 | 5,080 | +0.4% | 35,100 | 1641億2362万 | -1.76% |
| 12/05 | 5,060 | 5,070 | 5,030 | 5,060 | 0% | 47,300 | 1634億7746万 | -2.09% |
| 12/02 | 5,080 | 5,080 | 5,010 | 5,060 | -0.98% | 84,700 | 1634億7746万 | -2.07% |
| 12/01 | 5,100 | 5,120 | 5,070 | 5,110 | +0.2% | 60,300 | 1650億9285万 | -1.06% |
| 11/30 | 5,140 | 5,160 | 5,100 | 5,100 | -0.97% | 77,700 | 1647億6978万 | -1.22% |
| 11/29 | 5,180 | 5,180 | 5,130 | 5,150 | -0.58% | 42,200 | 1663億8517万 | -0.19% |
| 11/28 | 5,290 | 5,290 | 5,180 | 5,180 | -1.15% | 30,800 | 1673億5440万 | +0.47% |
| 11/25 | 5,290 | 5,290 | 5,240 | 5,240 | -1.13% | 27,300 | 1692億9287万 | +1.67% |
| 11/24 | 5,270 | 5,310 | 5,250 | 5,300 | +1.34% | 61,400 | 1712億3134万 | +2.87% |
| 11/22 | 5,180 | 5,230 | 5,170 | 5,230 | +1.55% | 70,500 | 1689億6979万 | +1.63% |
| 11/21 | 5,150 | 5,180 | 5,130 | 5,150 | +0.39% | 25,500 | 1663億8517万 | +0.14% |
| 11/18 | 5,150 | 5,150 | 5,110 | 5,130 | +0.39% | 27,900 | 1657億3901万 | -0.29% |
| 11/17 | 5,150 | 5,160 | 5,100 | 5,110 | -0.78% | 25,600 | 1650億9285万 | -0.7% |
| 11/16 | 5,120 | 5,180 | 5,090 | 5,150 | +0.19% | 30,600 | 1663億8517万 | +0.02% |
| 11/15 | 5,100 | 5,140 | 5,080 | 5,140 | +0.59% | 36,500 | 1660億6209万 | -0.19% |
| 11/14 | 5,200 | 5,200 | 5,100 | 5,110 | -1.73% | 46,200 | 1650億9285万 | -0.87% |
| 11/11 | 5,230 | 5,240 | 5,170 | 5,200 | 0% | 53,700 | 1680億56万 | +0.78% |
| 11/10 | 5,170 | 5,220 | 5,160 | 5,200 | -0.19% | 39,100 | 1680億56万 | +0.72% |
| 11/09 | 5,280 | 5,290 | 5,190 | 5,210 | -0.38% | 46,800 | 1683億2363万 | +0.89% |
| 11/08 | （IR情報）11:30 2022年度上期決算実績 |
| 11/08 | （IR情報）11:30 通期連結業績予想及び期末配当予想の修正に関するお知らせ |
| 11/08 | （IR情報）11:30 2023年3月期第2四半期決算短信[日本基準](連結) |
| 11/08 | 5,350 | 5,430 | 5,180 | 5,230 | -2.24% | 125,400 | 1689億6979万 | +1.45% |
| 11/07 | 5,320 | 5,360 | 5,310 | 5,350 | +1.33% | 46,800 | 1728億4673万 | +3.94% |
| 11/04 | 5,240 | 5,320 | 5,220 | 5,280 | +0.76% | 56,900 | 1705億8518万 | +2.78% |
| 11/02 | 5,170 | 5,270 | 5,150 | 5,240 | +1.75% | 77,500 | 1692億9287万 | +2.06% |
| 11/01 | 5,130 | 5,160 | 5,100 | 5,150 | +0.59% | 35,300 | 1663億8517万 | +0.33% |
| 10/31 | 5,070 | 5,120 | 5,050 | 5,120 | +2.4% | 54,700 | 1654億1593万 | -0.33% |
| 10/28 | 5,000 | 5,060 | 5,000 | 5,000 | -0.6% | 113,200 | 1615億3900万 | -2.82% |
| 10/27 | 5,020 | 5,030 | 5,010 | 5,030 | +0.2% | 27,900 | 1625億823万 | -2.52% |
| 10/26 | 5,050 | 5,060 | 5,020 | 5,020 | -0.59% | 49,800 | 1621億8515万 | -2.98% |
| 10/25 | 5,060 | 5,080 | 5,040 | 5,050 | +0.2% | 26,600 | 1631億5439万 | -2.64% |
| 10/24 | 5,100 | 5,110 | 5,040 | 5,040 | +0.2% | 46,500 | 1628億3131万 | -3.08% |
| 10/21 | 5,130 | 5,140 | 5,030 | 5,030 | -2.33% | 73,300 | 1625億823万 | -3.51% |
| 10/20 | 5,160 | 5,180 | 5,120 | 5,150 | -0.58% | 42,700 | 1663億8517万 | -1.51% |
| 10/19 | 5,190 | 5,200 | 5,160 | 5,180 | +0.39% | 22,300 | 1673億5440万 | -1.15% |
| 10/18 | 5,170 | 5,180 | 5,120 | 5,160 | +0.39% | 35,100 | 1667億824万 | -1.71% |
| 10/17 | 5,160 | 5,190 | 5,130 | 5,140 | -1.34% | 31,600 | 1660億6209万 | -2.28% |
| 10/14 | 5,200 | 5,250 | 5,150 | 5,210 | +1.36% | 44,700 | 1683億2363万 | -1.12% |
| 10/13 | 5,140 | 5,170 | 5,130 | 5,140 | -1.15% | 24,100 | 1660億6209万 | -2.54% |
| 10/12 | 5,170 | 5,200 | 5,130 | 5,200 | +0.39% | 37,400 | 1680億56万 | -1.55% |
| 10/11 | 5,190 | 5,230 | 5,180 | 5,180 | -1.33% | 47,000 | 1673億5440万 | -2.02% |
| 10/07 | 5,180 | 5,260 | 5,180 | 5,250 | 0% | 41,500 | 1696億1595万 | -0.81% |
| 10/06 | 5,260 | 5,300 | 5,250 | 5,250 | -0.19% | 42,500 | 1696億1595万 | -0.91% |
| 10/05 | 5,240 | 5,270 | 5,200 | 5,260 | +0.57% | 53,000 | 1699億3902万 | -0.85% |
| 10/04 | 5,120 | 5,230 | 5,100 | 5,230 | +4.81% | 81,800 | 1689億6979万 | -1.53% |
| 10/03 | 5,000 | 5,030 | 4,935 | 4,990 | -0.8% | 126,800 | 1612億1592万 | -6.19% |
| 09/30 | 5,070 | 5,070 | 5,000 | 5,030 | -1.18% | 86,300 | 1625億823万 | -5.7% |
| 09/29 | 5,080 | 5,110 | 5,050 | 5,090 | -2.12% | 65,300 | 1644億4670万 | -4.79% |
| 09/28 | 5,230 | 5,250 | 5,150 | 5,200 | -0.57% | 89,400 | 1680億56万 | -2.88% |
| 09/27 | 5,230 | 5,300 | 5,230 | 5,230 | -0.19% | 37,000 | 1689億6979万 | -2.39% |
