9101 日本郵船(株) の時系列データ [1990年度]
日付 | 始値 | 高値 | 安値 | 終値 | 出来高 | 調整後終値 |
---|---|---|---|---|---|---|
1990-12-28 | 565 | 565 | 555 | 555 | 544,000 | 1,850 |
1990-12-27 | 561 | 580 | 555 | 565 | 1,164,000 | 1,883.33 |
1990-12-26 | 570 | 580 | 560 | 569 | 618,000 | 1,896.67 |
1990-12-25 | 562 | 570 | 559 | 560 | 751,000 | 1,866.67 |
1990-12-21 | 573 | 590 | 565 | 572 | 1,203,000 | 1,906.67 |
1990-12-20 | 585 | 604 | 580 | 603 | 1,773,000 | 2,010 |
1990-12-19 | 609 | 610 | 595 | 595 | 2,631,000 | 1,983.33 |
1990-12-18 | 588 | 600 | 588 | 589 | 1,558,000 | 1,963.33 |
1990-12-17 | 600 | 605 | 590 | 590 | 1,796,000 | 1,966.67 |
1990-12-14 | 605 | 619 | 605 | 612 | 3,944,000 | 2,040 |
1990-12-13 | 605 | 621 | 603 | 615 | 3,038,000 | 2,050 |
1990-12-12 | 576 | 617 | 576 | 601 | 5,222,000 | 2,003.33 |
1990-12-11 | 560 | 589 | 540 | 584 | 2,672,000 | 1,946.67 |
1990-12-10 | 560 | 575 | 540 | 560 | 2,559,000 | 1,866.67 |
1990-12-07 | 554 | 563 | 538 | 562 | 2,382,000 | 1,873.33 |
1990-12-06 | 495 | 504 | 491 | 504 | 981,000 | 1,680 |
1990-12-05 | 493 | 493 | 475 | 480 | 508,000 | 1,600 |
1990-12-04 | 485 | 495 | 475 | 483 | 935,000 | 1,610 |
1990-12-03 | 510 | 510 | 495 | 500 | 1,012,000 | 1,666.67 |
1990-11-30 | 480 | 500 | 477 | 480 | 1,597,000 | 1,600 |
1990-11-29 | 500 | 505 | 490 | 491 | 1,215,000 | 1,636.67 |
1990-11-28 | 525 | 525 | 505 | 510 | 3,240,000 | 1,700 |
1990-11-27 | 520 | 535 | 518 | 527 | 989,000 | 1,756.67 |
1990-11-26 | 540 | 540 | 520 | 530 | 456,000 | 1,766.67 |
1990-11-22 | 510 | 532 | 510 | 530 | 1,021,000 | 1,766.67 |
1990-11-21 | 516 | 516 | 505 | 507 | 586,000 | 1,690 |
1990-11-20 | 539 | 539 | 520 | 521 | 551,000 | 1,736.67 |
1990-11-19 | 545 | 548 | 532 | 540 | 557,000 | 1,800 |
1990-11-16 | 541 | 551 | 535 | 540 | 531,000 | 1,800 |
1990-11-15 | 565 | 565 | 546 | 556 | 430,000 | 1,853.33 |
1990-11-14 | 546 | 565 | 545 | 565 | 492,000 | 1,883.33 |
1990-11-13 | 560 | 565 | 545 | 556 | 1,754,000 | 1,853.33 |
1990-11-09 | 532 | 540 | 525 | 530 | 1,249,000 | 1,766.67 |
1990-11-08 | 540 | 550 | 540 | 542 | 1,136,000 | 1,806.67 |
1990-11-07 | 555 | 565 | 552 | 560 | 763,000 | 1,866.67 |
1990-11-06 | 580 | 585 | 570 | 575 | 659,000 | 1,916.67 |
1990-11-05 | 586 | 586 | 578 | 583 | 664,000 | 1,943.33 |
1990-11-02 | 577 | 590 | 561 | 566 | 979,000 | 1,886.67 |
1990-11-01 | 574 | 584 | 574 | 575 | 1,001,000 | 1,916.67 |
1990-10-31 | 602 | 608 | 595 | 597 | 762,000 | 1,990 |
1990-10-30 | 616 | 616 | 598 | 601 | 714,000 | 2,003.33 |
1990-10-29 | 614 | 625 | 614 | 616 | 752,000 | 2,053.33 |
1990-10-26 | 613 | 629 | 611 | 614 | 1,627,000 | 2,046.67 |
1990-10-25 | 620 | 639 | 618 | 633 | 3,224,000 | 2,110 |
1990-10-24 | 620 | 621 | 607 | 615 | 1,409,000 | 2,050 |
1990-10-23 | 640 | 643 | 622 | 627 | 2,430,000 | 2,090 |
1990-10-22 | 619 | 632 | 615 | 620 | 2,674,000 | 2,066.67 |
1990-10-19 | 610 | 637 | 606 | 609 | 9,046,000 | 2,030 |
1990-10-18 | 580 | 615 | 575 | 600 | 8,758,000 | 2,000 |
1990-10-17 | 560 | 584 | 560 | 574 | 3,634,000 | 1,913.33 |
1990-10-16 | 560 | 570 | 546 | 560 | 1,070,000 | 1,866.67 |
1990-10-15 | 555 | 559 | 545 | 546 | 366,000 | 1,820 |
1990-10-12 | 530 | 540 | 527 | 538 | 657,000 | 1,793.33 |
1990-10-11 | 549 | 549 | 525 | 540 | 847,000 | 1,800 |
1990-10-09 | 580 | 590 | 555 | 555 | 1,871,000 | 1,850 |
1990-10-08 | 524 | 565 | 523 | 560 | 1,776,000 | 1,866.67 |
1990-10-05 | 525 | 544 | 520 | 520 | 1,271,000 | 1,733.33 |
1990-10-04 | 530 | 532 | 520 | 525 | 1,118,000 | 1,750 |
1990-10-03 | 555 | 570 | 538 | 540 | 2,062,000 | 1,800 |
1990-10-02 | 545 | 575 | 530 | 575 | 3,042,000 | 1,916.67 |
1990-10-01 | 505 | 520 | 454 | 505 | 1,784,000 | 1,683.33 |
1990-09-28 | 520 | 530 | 495 | 500 | 1,838,000 | 1,666.67 |
1990-09-27 | 534 | 550 | 525 | 530 | 1,543,000 | 1,766.67 |
1990-09-26 | 570 | 575 | 531 | 533 | 1,285,000 | 1,776.67 |
1990-09-25 | 570 | 580 | 561 | 564 | 593,000 | 1,880 |
1990-09-21 | 554 | 610 | 550 | 600 | 2,478,000 | 2,000 |
1990-09-20 | 555 | 561 | 550 | 554 | 1,007,000 | 1,846.67 |
1990-09-19 | 560 | 569 | 551 | 551 | 1,006,000 | 1,836.67 |
1990-09-18 | 571 | 574 | 561 | 569 | 1,240,000 | 1,896.67 |
1990-09-17 | 575 | 583 | 571 | 575 | 674,000 | 1,916.67 |
1990-09-14 | 581 | 590 | 580 | 580 | 2,079,000 | 1,933.33 |
1990-09-13 | 607 | 608 | 590 | 591 | 1,226,000 | 1,970 |
1990-09-12 | 577 | 610 | 575 | 597 | 2,316,000 | 1,990 |
1990-09-11 | 590 | 594 | 575 | 578 | 1,138,000 | 1,926.67 |
1990-09-10 | 570 | 590 | 563 | 588 | 1,823,000 | 1,960 |
1990-09-07 | 560 | 575 | 555 | 562 | 3,021,000 | 1,873.33 |
1990-09-06 | 565 | 572 | 557 | 560 | 2,850,000 | 1,866.67 |
1990-09-05 | 595 | 600 | 565 | 575 | 1,275,000 | 1,916.67 |
1990-09-04 | 615 | 615 | 586 | 599 | 871,000 | 1,996.67 |
1990-09-03 | 630 | 638 | 610 | 615 | 803,000 | 2,050 |
1990-08-31 | 615 | 635 | 615 | 629 | 1,117,000 | 2,096.67 |
1990-08-30 | 610 | 634 | 600 | 625 | 2,100,000 | 2,083.33 |
1990-08-29 | 633 | 634 | 610 | 620 | 1,107,000 | 2,066.67 |
1990-08-28 | 669 | 670 | 631 | 633 | 1,789,000 | 2,110 |
1990-08-27 | 627 | 640 | 620 | 640 | 1,166,000 | 2,133.33 |
1990-08-24 | 600 | 617 | 580 | 617 | 2,924,000 | 2,056.67 |
1990-08-23 | 642 | 646 | 560 | 560 | 2,058,000 | 1,866.67 |
1990-08-22 | 685 | 685 | 642 | 650 | 1,605,000 | 2,166.67 |
1990-08-21 | 711 | 713 | 690 | 690 | 937,000 | 2,300 |
1990-08-20 | 703 | 713 | 700 | 701 | 733,000 | 2,336.67 |
1990-08-17 | 700 | 713 | 692 | 713 | 977,000 | 2,376.67 |
1990-08-16 | 729 | 731 | 713 | 713 | 823,000 | 2,376.67 |
1990-08-15 | 717 | 749 | 715 | 749 | 1,464,000 | 2,496.67 |
1990-08-14 | 707 | 717 | 691 | 710 | 1,310,000 | 2,366.67 |
1990-08-13 | 714 | 719 | 690 | 705 | 1,381,000 | 2,350 |
1990-08-10 | 739 | 740 | 720 | 722 | 900,000 | 2,406.67 |
1990-08-09 | 755 | 760 | 721 | 731 | 1,083,000 | 2,436.67 |
1990-08-08 | 727 | 753 | 720 | 745 | 2,851,000 | 2,483.33 |
1990-08-07 | 713 | 739 | 713 | 720 | 2,012,000 | 2,400 |
1990-08-06 | 751 | 759 | 747 | 753 | 885,000 | 2,510 |
1990-08-03 | 770 | 784 | 765 | 766 | 921,000 | 2,553.33 |
1990-08-02 | 791 | 795 | 776 | 786 | 1,394,000 | 2,620 |
1990-08-01 | 822 | 822 | 795 | 800 | 1,185,000 | 2,666.67 |
1990-07-31 | 810 | 828 | 802 | 802 | 1,088,000 | 2,673.33 |
1990-07-30 | 819 | 819 | 795 | 800 | 765,000 | 2,666.67 |
1990-07-27 | 838 | 838 | 802 | 819 | 1,426,000 | 2,730 |
1990-07-26 | 850 | 855 | 826 | 848 | 1,753,000 | 2,826.67 |
1990-07-25 | 848 | 855 | 833 | 849 | 1,511,000 | 2,830 |
1990-07-24 | 840 | 855 | 832 | 840 | 1,246,000 | 2,800 |
1990-07-23 | 860 | 860 | 836 | 840 | 905,000 | 2,800 |
1990-07-20 | 865 | 870 | 855 | 855 | 664,000 | 2,850 |
1990-07-19 | 880 | 885 | 865 | 870 | 862,000 | 2,900 |
1990-07-18 | 880 | 885 | 865 | 880 | 675,000 | 2,933.33 |
1990-07-17 | 885 | 885 | 870 | 882 | 954,000 | 2,940 |
1990-07-16 | 856 | 888 | 855 | 885 | 1,267,000 | 2,950 |
1990-07-13 | 856 | 865 | 855 | 860 | 541,000 | 2,866.67 |
1990-07-12 | 865 | 865 | 850 | 855 | 583,000 | 2,850 |
1990-07-11 | 844 | 860 | 841 | 855 | 1,137,000 | 2,850 |
1990-07-10 | 859 | 860 | 846 | 846 | 782,000 | 2,820 |
1990-07-09 | 875 | 875 | 852 | 855 | 1,006,000 | 2,850 |
1990-07-06 | 885 | 895 | 874 | 875 | 1,722,000 | 2,916.67 |
1990-07-05 | 896 | 896 | 877 | 895 | 1,287,000 | 2,983.33 |
1990-07-04 | 880 | 899 | 876 | 876 | 1,637,000 | 2,920 |
1990-07-03 | 878 | 880 | 861 | 880 | 916,000 | 2,933.33 |
1990-07-02 | 862 | 869 | 853 | 868 | 696,000 | 2,893.33 |
1990-06-29 | 885 | 885 | 860 | 860 | 1,443,000 | 2,866.67 |
1990-06-28 | 855 | 870 | 851 | 860 | 2,569,000 | 2,866.67 |
1990-06-27 | 866 | 868 | 851 | 865 | 1,858,000 | 2,883.33 |
1990-06-26 | 855 | 865 | 853 | 856 | 1,113,000 | 2,853.33 |
1990-06-25 | 853 | 859 | 853 | 857 | 1,054,000 | 2,856.67 |
1990-06-22 | 876 | 881 | 856 | 868 | 1,316,000 | 2,893.33 |
1990-06-21 | 882 | 890 | 878 | 882 | 1,516,000 | 2,940 |
1990-06-20 | 878 | 890 | 878 | 882 | 1,771,000 | 2,940 |
1990-06-19 | 890 | 890 | 885 | 888 | 1,336,000 | 2,960 |
1990-06-18 | 901 | 907 | 896 | 900 | 586,000 | 3,000 |
1990-06-15 | 908 | 914 | 900 | 900 | 1,054,000 | 3,000 |
1990-06-14 | 903 | 918 | 899 | 917 | 3,081,000 | 3,056.67 |
1990-06-13 | 912 | 916 | 892 | 901 | 1,916,000 | 3,003.33 |
1990-06-12 | 920 | 931 | 911 | 912 | 1,508,000 | 3,040 |
1990-06-11 | 922 | 930 | 920 | 920 | 1,168,000 | 3,066.67 |
1990-06-08 | 930 | 935 | 925 | 930 | 1,967,000 | 3,100 |
1990-06-07 | 942 | 950 | 935 | 940 | 1,027,000 | 3,133.33 |
1990-06-06 | 945 | 950 | 936 | 942 | 1,110,000 | 3,140 |
1990-06-05 | 953 | 959 | 935 | 939 | 1,398,000 | 3,130 |
1990-06-04 | 950 | 965 | 950 | 960 | 1,063,000 | 3,200 |
1990-06-01 | 965 | 970 | 950 | 953 | 3,067,000 | 3,176.67 |
1990-05-31 | 937 | 975 | 930 | 975 | 6,831,000 | 3,250 |
1990-05-30 | 930 | 940 | 924 | 938 | 2,248,000 | 3,126.67 |
1990-05-29 | 948 | 955 | 930 | 930 | 2,494,000 | 3,100 |
1990-05-28 | 975 | 975 | 946 | 955 | 7,153,000 | 3,183.33 |
1990-05-25 | 930 | 969 | 930 | 965 | 10,947,000 | 3,216.67 |
1990-05-24 | 903 | 930 | 899 | 930 | 1,930,000 | 3,100 |
1990-05-23 | 918 | 920 | 902 | 903 | 977,000 | 3,010 |
1990-05-22 | 892 | 909 | 892 | 908 | 1,458,000 | 3,026.67 |
1990-05-21 | 908 | 908 | 900 | 902 | 1,175,000 | 3,006.67 |
1990-05-18 | 910 | 911 | 900 | 908 | 1,493,000 | 3,026.67 |
1990-05-17 | 920 | 922 | 910 | 911 | 2,051,000 | 3,036.67 |
1990-05-16 | 920 | 929 | 920 | 920 | 1,523,000 | 3,066.67 |
1990-05-15 | 924 | 940 | 916 | 930 | 5,964,000 | 3,100 |
1990-05-14 | 918 | 922 | 910 | 920 | 4,138,000 | 3,066.67 |
1990-05-11 | 906 | 910 | 900 | 908 | 1,635,000 | 3,026.67 |
1990-05-10 | 915 | 915 | 896 | 896 | 2,330,000 | 2,986.67 |
1990-05-09 | 908 | 919 | 900 | 905 | 2,621,000 | 3,016.67 |
1990-05-08 | 906 | 910 | 900 | 905 | 1,874,000 | 3,016.67 |
1990-05-07 | 910 | 919 | 905 | 908 | 3,122,000 | 3,026.67 |
1990-05-02 | 881 | 915 | 881 | 900 | 967,000 | 3,000 |
1990-05-01 | 874 | 884 | 874 | 881 | 688,000 | 2,936.67 |
1990-04-27 | 900 | 904 | 880 | 881 | 1,090,000 | 2,936.67 |
1990-04-26 | 901 | 908 | 891 | 900 | 2,001,000 | 3,000 |
1990-04-25 | 918 | 918 | 890 | 905 | 2,592,000 | 3,016.67 |
1990-04-24 | 890 | 915 | 882 | 915 | 2,986,000 | 3,050 |
1990-04-23 | 888 | 899 | 873 | 890 | 1,698,000 | 2,966.67 |
1990-04-20 | 916 | 918 | 880 | 888 | 5,608,000 | 2,960 |
1990-04-19 | 881 | 914 | 880 | 906 | 7,618,000 | 3,020 |
1990-04-18 | 835 | 870 | 835 | 855 | 2,182,000 | 2,850 |
1990-04-17 | 836 | 856 | 830 | 845 | 3,194,000 | 2,816.67 |
1990-04-16 | 845 | 845 | 836 | 841 | 619,000 | 2,803.33 |
1990-04-13 | 860 | 866 | 851 | 852 | 648,000 | 2,840 |
1990-04-12 | 851 | 870 | 850 | 870 | 1,132,000 | 2,900 |
1990-04-11 | 860 | 870 | 850 | 855 | 1,385,000 | 2,850 |
1990-04-10 | 875 | 880 | 850 | 850 | 2,018,000 | 2,833.33 |
1990-04-09 | 900 | 905 | 890 | 895 | 3,595,000 | 2,983.33 |
1990-04-06 | 830 | 880 | 820 | 880 | 3,734,000 | 2,933.33 |
1990-04-05 | 749 | 780 | 749 | 780 | 2,375,000 | 2,600 |
1990-04-04 | 795 | 800 | 750 | 759 | 2,171,000 | 2,530 |
1990-04-03 | 790 | 800 | 765 | 794 | 2,242,000 | 2,646.67 |
1990-04-02 | 760 | 785 | 760 | 765 | 2,547,000 | 2,550 |
1990-03-30 | 865 | 865 | 820 | 820 | 1,734,000 | 2,733.33 |
1990-03-29 | 880 | 889 | 865 | 866 | 1,497,000 | 2,886.67 |
1990-03-28 | 915 | 920 | 865 | 865 | 2,357,000 | 2,883.33 |
1990-03-27 | 925 | 939 | 905 | 925 | 2,737,000 | 3,083.33 |
1990-03-26 | 889 | 930 | 889 | 905 | 2,497,000 | 3,016.67 |
1990-03-23 | 868 | 880 | 841 | 880 | 3,984,000 | 2,933.33 |
1990-03-22 | 829 | 850 | 825 | 838 | 3,156,000 | 2,793.33 |
1990-03-20 | 921 | 935 | 890 | 899 | 2,511,000 | 2,996.67 |
1990-03-19 | 965 | 965 | 920 | 921 | 1,494,000 | 3,070 |
1990-03-16 | 974 | 978 | 960 | 965 | 1,608,000 | 3,216.67 |
1990-03-15 | 972 | 979 | 966 | 969 | 1,369,000 | 3,230 |
1990-03-14 | 980 | 995 | 965 | 974 | 1,374,000 | 3,246.67 |
1990-03-13 | 990 | 990 | 982 | 985 | 1,185,000 | 3,283.33 |
1990-03-12 | 1,000 | 1,020 | 999 | 1,000 | 1,396,000 | 3,333.33 |
1990-03-09 | 1,010 | 1,010 | 1,000 | 1,010 | 2,186,000 | 3,366.67 |
1990-03-08 | 990 | 1,010 | 990 | 1,000 | 2,008,000 | 3,333.33 |
1990-03-07 | 991 | 1,010 | 990 | 999 | 1,250,000 | 3,330 |
1990-03-06 | 986 | 1,010 | 986 | 1,010 | 1,903,000 | 3,366.67 |
1990-03-05 | 986 | 987 | 978 | 986 | 1,563,000 | 3,286.67 |
1990-03-02 | 990 | 995 | 980 | 987 | 1,919,000 | 3,290 |
1990-03-01 | 1,000 | 1,010 | 990 | 990 | 2,244,000 | 3,300 |
1990-02-28 | 986 | 1,020 | 986 | 1,020 | 4,487,000 | 3,400 |
1990-02-27 | 989 | 990 | 972 | 980 | 1,791,000 | 3,266.67 |
1990-02-26 | 980 | 980 | 956 | 972 | 2,276,000 | 3,240 |
1990-02-23 | 1,000 | 1,020 | 1,000 | 1,000 | 3,172,000 | 3,333.33 |
1990-02-22 | 1,030 | 1,040 | 1,000 | 1,000 | 4,162,000 | 3,333.33 |
1990-02-21 | 1,050 | 1,070 | 1,030 | 1,030 | 2,919,000 | 3,433.33 |
1990-02-20 | 1,060 | 1,080 | 1,050 | 1,070 | 947,000 | 3,566.67 |
1990-02-19 | 1,100 | 1,100 | 1,060 | 1,080 | 1,670,000 | 3,600 |
1990-02-16 | 1,110 | 1,110 | 1,070 | 1,090 | 3,734,000 | 3,633.33 |
1990-02-15 | 1,060 | 1,110 | 1,060 | 1,110 | 1,717,000 | 3,700 |
1990-02-14 | 1,060 | 1,060 | 1,050 | 1,060 | 1,470,000 | 3,533.33 |
1990-02-13 | 1,060 | 1,070 | 1,050 | 1,050 | 1,454,000 | 3,500 |
1990-02-09 | 1,070 | 1,070 | 1,050 | 1,060 | 1,025,000 | 3,533.33 |
1990-02-08 | 1,090 | 1,090 | 1,050 | 1,050 | 1,701,000 | 3,500 |
1990-02-07 | 1,110 | 1,110 | 1,060 | 1,070 | 1,391,000 | 3,566.67 |
1990-02-06 | 1,110 | 1,120 | 1,100 | 1,110 | 1,500,000 | 3,700 |
1990-02-05 | 1,100 | 1,100 | 1,080 | 1,100 | 545,000 | 3,666.67 |
1990-02-02 | 1,070 | 1,090 | 1,060 | 1,090 | 1,717,000 | 3,633.33 |
1990-02-01 | 1,070 | 1,080 | 1,050 | 1,050 | 1,043,000 | 3,500 |
1990-01-31 | 1,060 | 1,070 | 1,050 | 1,060 | 756,000 | 3,533.33 |
1990-01-30 | 1,070 | 1,080 | 1,050 | 1,070 | 928,000 | 3,566.67 |
1990-01-29 | 1,050 | 1,060 | 1,040 | 1,050 | 886,000 | 3,500 |
1990-01-26 | 1,060 | 1,060 | 1,040 | 1,040 | 2,526,000 | 3,466.67 |
1990-01-25 | 1,060 | 1,070 | 1,050 | 1,050 | 2,926,000 | 3,500 |
1990-01-24 | 1,090 | 1,090 | 1,060 | 1,060 | 1,267,000 | 3,533.33 |
1990-01-23 | 1,080 | 1,100 | 1,070 | 1,090 | 1,571,000 | 3,633.33 |
1990-01-22 | 1,090 | 1,120 | 1,080 | 1,100 | 1,095,000 | 3,666.67 |
1990-01-19 | 1,050 | 1,100 | 1,040 | 1,100 | 3,269,000 | 3,666.67 |
1990-01-18 | 1,070 | 1,090 | 1,050 | 1,050 | 1,557,000 | 3,500 |
1990-01-17 | 1,100 | 1,130 | 1,070 | 1,070 | 2,559,000 | 3,566.67 |
1990-01-16 | 1,080 | 1,090 | 1,060 | 1,080 | 2,407,000 | 3,600 |
1990-01-12 | 1,140 | 1,150 | 1,120 | 1,120 | 2,482,000 | 3,733.33 |
1990-01-11 | 1,140 | 1,150 | 1,120 | 1,150 | 2,592,000 | 3,833.33 |
1990-01-10 | 1,170 | 1,170 | 1,130 | 1,130 | 1,893,000 | 3,766.67 |
1990-01-09 | 1,170 | 1,190 | 1,150 | 1,170 | 1,313,000 | 3,900 |
1990-01-08 | 1,200 | 1,210 | 1,170 | 1,170 | 1,435,000 | 3,900 |
1990-01-05 | 1,220 | 1,240 | 1,170 | 1,200 | 7,111,000 | 4,000 |
1990-01-04 | 1,190 | 1,200 | 1,170 | 1,200 | 1,572,000 | 4,000 |
分割・併合履歴 : [2022-09-29]1株→3株 [2017-09-27]1株→0.1株 [1987-03-27]1株→1.04株 [1985-03-27]1株→1.05株