9009 京成電鉄(株) の時系列データ [1992年度]
| 日付 | 始値 | 高値 | 安値 | 終値 | 出来高 | 調整後終値 |
|---|---|---|---|---|---|---|
| 1992-12-30 | 788 | 792 | 780 | 780 | 522,000 | 1,560 |
| 1992-12-29 | 777 | 794 | 776 | 792 | 687,000 | 1,584 |
| 1992-12-28 | 788 | 788 | 775 | 775 | 713,000 | 1,550 |
| 1992-12-25 | 791 | 798 | 784 | 788 | 885,000 | 1,576 |
| 1992-12-24 | 800 | 804 | 781 | 783 | 1,091,000 | 1,566 |
| 1992-12-22 | 808 | 817 | 797 | 801 | 1,133,000 | 1,602 |
| 1992-12-21 | 820 | 823 | 810 | 814 | 747,000 | 1,628 |
| 1992-12-18 | 829 | 832 | 816 | 820 | 893,000 | 1,640 |
| 1992-12-17 | 818 | 833 | 818 | 827 | 1,630,000 | 1,654 |
| 1992-12-16 | 820 | 839 | 813 | 827 | 3,316,000 | 1,654 |
| 1992-12-15 | 801 | 822 | 799 | 820 | 1,834,000 | 1,640 |
| 1992-12-14 | 824 | 825 | 805 | 811 | 1,480,000 | 1,622 |
| 1992-12-11 | 810 | 828 | 806 | 827 | 5,305,000 | 1,654 |
| 1992-12-10 | 800 | 815 | 796 | 805 | 1,830,000 | 1,610 |
| 1992-12-09 | 779 | 791 | 775 | 790 | 519,000 | 1,580 |
| 1992-12-08 | 765 | 775 | 765 | 773 | 258,000 | 1,546 |
| 1992-12-07 | 765 | 770 | 762 | 770 | 311,000 | 1,540 |
| 1992-12-04 | 781 | 783 | 762 | 775 | 519,000 | 1,550 |
| 1992-12-03 | 795 | 796 | 780 | 788 | 523,000 | 1,576 |
| 1992-12-02 | 797 | 803 | 794 | 798 | 728,000 | 1,596 |
| 1992-12-01 | 809 | 815 | 791 | 792 | 1,569,000 | 1,584 |
| 1992-11-30 | 805 | 815 | 802 | 802 | 1,681,000 | 1,604 |
| 1992-11-27 | 790 | 800 | 790 | 798 | 1,583,000 | 1,596 |
| 1992-11-26 | 781 | 803 | 780 | 787 | 2,544,000 | 1,574 |
| 1992-11-25 | 755 | 779 | 755 | 778 | 1,482,000 | 1,556 |
| 1992-11-24 | 739 | 755 | 739 | 750 | 422,000 | 1,500 |
| 1992-11-20 | 710 | 749 | 710 | 735 | 886,000 | 1,470 |
| 1992-11-19 | 731 | 740 | 720 | 720 | 576,000 | 1,440 |
| 1992-11-18 | 675 | 743 | 675 | 724 | 1,055,000 | 1,448 |
| 1992-11-17 | 680 | 684 | 674 | 680 | 616,000 | 1,360 |
| 1992-11-16 | 690 | 692 | 686 | 689 | 438,000 | 1,378 |
| 1992-11-13 | 686 | 694 | 675 | 692 | 1,706,000 | 1,384 |
| 1992-11-12 | 680 | 681 | 661 | 676 | 476,000 | 1,352 |
| 1992-11-11 | 679 | 685 | 670 | 670 | 349,000 | 1,340 |
| 1992-11-10 | 674 | 686 | 671 | 674 | 328,000 | 1,348 |
| 1992-11-09 | 706 | 706 | 684 | 684 | 562,000 | 1,368 |
| 1992-11-06 | 720 | 725 | 716 | 716 | 739,000 | 1,432 |
| 1992-11-05 | 702 | 721 | 702 | 720 | 334,000 | 1,440 |
| 1992-11-04 | 696 | 705 | 696 | 705 | 253,000 | 1,410 |
| 1992-11-02 | 700 | 704 | 696 | 704 | 266,000 | 1,408 |
| 1992-10-30 | 713 | 713 | 701 | 701 | 327,000 | 1,402 |
| 1992-10-29 | 714 | 720 | 711 | 713 | 173,000 | 1,426 |
| 1992-10-28 | 711 | 725 | 711 | 719 | 375,000 | 1,438 |
| 1992-10-27 | 710 | 714 | 707 | 711 | 193,000 | 1,422 |
| 1992-10-26 | 718 | 720 | 711 | 713 | 243,000 | 1,426 |
| 1992-10-23 | 716 | 720 | 715 | 718 | 303,000 | 1,436 |
| 1992-10-22 | 720 | 724 | 716 | 716 | 280,000 | 1,432 |
| 1992-10-21 | 723 | 727 | 716 | 724 | 354,000 | 1,448 |
| 1992-10-20 | 731 | 735 | 720 | 727 | 479,000 | 1,454 |
| 1992-10-19 | 742 | 743 | 730 | 735 | 428,000 | 1,470 |
| 1992-10-16 | 758 | 764 | 751 | 751 | 389,000 | 1,502 |
| 1992-10-15 | 752 | 759 | 750 | 759 | 415,000 | 1,518 |
| 1992-10-14 | 770 | 777 | 752 | 752 | 345,000 | 1,504 |
| 1992-10-13 | 768 | 775 | 760 | 760 | 414,000 | 1,520 |
| 1992-10-12 | 753 | 768 | 753 | 768 | 338,000 | 1,536 |
| 1992-10-09 | 764 | 772 | 752 | 752 | 1,845,000 | 1,504 |
| 1992-10-08 | 756 | 774 | 755 | 774 | 298,000 | 1,548 |
| 1992-10-07 | 770 | 780 | 753 | 753 | 334,000 | 1,506 |
| 1992-10-06 | 751 | 768 | 750 | 760 | 616,000 | 1,520 |
| 1992-10-05 | 761 | 765 | 752 | 763 | 368,000 | 1,526 |
| 1992-10-02 | 765 | 780 | 764 | 771 | 624,000 | 1,542 |
| 1992-10-01 | 770 | 779 | 754 | 757 | 1,038,000 | 1,514 |
| 1992-09-30 | 780 | 798 | 765 | 765 | 1,410,000 | 1,530 |
| 1992-09-29 | 800 | 805 | 764 | 795 | 495,000 | 1,590 |
| 1992-09-28 | 822 | 830 | 803 | 803 | 310,000 | 1,606 |
| 1992-09-25 | 830 | 840 | 814 | 821 | 1,261,000 | 1,642 |
| 1992-09-24 | 820 | 828 | 814 | 819 | 746,000 | 1,638 |
| 1992-09-22 | 799 | 819 | 789 | 813 | 753,000 | 1,626 |
| 1992-09-21 | 800 | 805 | 791 | 799 | 591,000 | 1,598 |
| 1992-09-18 | 783 | 805 | 761 | 791 | 1,166,000 | 1,582 |
| 1992-09-17 | 779 | 782 | 761 | 779 | 1,514,000 | 1,558 |
| 1992-09-16 | 817 | 820 | 789 | 789 | 1,659,000 | 1,578 |
| 1992-09-14 | 839 | 850 | 817 | 825 | 1,769,000 | 1,650 |
| 1992-09-11 | 857 | 887 | 812 | 830 | 7,224,000 | 1,660 |
| 1992-09-10 | 840 | 880 | 832 | 857 | 10,303,000 | 1,714 |
| 1992-09-09 | 775 | 830 | 770 | 813 | 6,515,000 | 1,626 |
| 1992-09-08 | 753 | 773 | 740 | 769 | 1,988,000 | 1,538 |
| 1992-09-07 | 760 | 775 | 753 | 753 | 1,195,000 | 1,506 |
| 1992-09-04 | 760 | 778 | 750 | 750 | 2,083,000 | 1,500 |
| 1992-09-03 | 686 | 750 | 671 | 740 | 782,000 | 1,480 |
| 1992-09-02 | 700 | 703 | 684 | 691 | 494,000 | 1,382 |
| 1992-09-01 | 740 | 740 | 699 | 700 | 882,000 | 1,400 |
| 1992-08-31 | 729 | 760 | 721 | 730 | 1,708,000 | 1,460 |
| 1992-08-28 | 700 | 744 | 682 | 720 | 2,144,000 | 1,440 |
| 1992-08-27 | 669 | 718 | 669 | 710 | 1,899,000 | 1,420 |
| 1992-08-26 | 659 | 669 | 648 | 649 | 990,000 | 1,298 |
| 1992-08-25 | 649 | 666 | 646 | 660 | 1,132,000 | 1,320 |
| 1992-08-24 | 638 | 700 | 638 | 669 | 2,746,000 | 1,338 |
| 1992-08-21 | 560 | 636 | 560 | 620 | 1,348,000 | 1,240 |
| 1992-08-20 | 500 | 559 | 500 | 540 | 751,000 | 1,080 |
| 1992-08-19 | 495 | 500 | 480 | 495 | 592,000 | 990 |
| 1992-08-18 | 502 | 502 | 480 | 480 | 356,000 | 960 |
| 1992-08-17 | 507 | 514 | 499 | 499 | 387,000 | 998 |
| 1992-08-14 | 486 | 507 | 484 | 494 | 894,000 | 988 |
| 1992-08-13 | 499 | 504 | 490 | 491 | 441,000 | 982 |
| 1992-08-12 | 490 | 499 | 485 | 494 | 671,000 | 988 |
| 1992-08-11 | 520 | 520 | 491 | 491 | 757,000 | 982 |
| 1992-08-10 | 537 | 537 | 503 | 510 | 753,000 | 1,020 |
| 1992-08-07 | 563 | 567 | 542 | 542 | 397,000 | 1,084 |
| 1992-08-06 | 573 | 580 | 560 | 563 | 411,000 | 1,126 |
| 1992-08-05 | 579 | 581 | 569 | 569 | 374,000 | 1,138 |
| 1992-08-04 | 558 | 581 | 558 | 580 | 305,000 | 1,160 |
| 1992-08-03 | 585 | 594 | 566 | 568 | 288,000 | 1,136 |
| 1992-07-31 | 555 | 589 | 551 | 589 | 504,000 | 1,178 |
| 1992-07-30 | 545 | 565 | 537 | 560 | 774,000 | 1,120 |
| 1992-07-29 | 573 | 573 | 533 | 535 | 1,073,000 | 1,070 |
| 1992-07-28 | 570 | 575 | 561 | 561 | 910,000 | 1,122 |
| 1992-07-27 | 624 | 626 | 570 | 580 | 749,000 | 1,160 |
| 1992-07-24 | 625 | 625 | 595 | 596 | 663,000 | 1,192 |
| 1992-07-23 | 594 | 630 | 589 | 629 | 589,000 | 1,258 |
| 1992-07-22 | 621 | 621 | 594 | 611 | 790,000 | 1,222 |
| 1992-07-21 | 620 | 630 | 613 | 617 | 692,000 | 1,234 |
| 1992-07-20 | 630 | 636 | 621 | 621 | 290,000 | 1,242 |
| 1992-07-17 | 668 | 668 | 638 | 640 | 801,000 | 1,280 |
| 1992-07-16 | 671 | 672 | 661 | 662 | 296,000 | 1,324 |
| 1992-07-15 | 676 | 694 | 672 | 672 | 602,000 | 1,344 |
| 1992-07-14 | 675 | 687 | 672 | 673 | 322,000 | 1,346 |
| 1992-07-13 | 660 | 695 | 660 | 684 | 374,000 | 1,368 |
| 1992-07-10 | 674 | 675 | 657 | 664 | 679,000 | 1,328 |
| 1992-07-09 | 656 | 668 | 645 | 656 | 1,023,000 | 1,312 |
| 1992-07-08 | 641 | 658 | 641 | 658 | 335,000 | 1,316 |
| 1992-07-07 | 688 | 695 | 660 | 660 | 183,000 | 1,320 |
| 1992-07-06 | 698 | 698 | 685 | 685 | 188,000 | 1,370 |
| 1992-07-03 | 699 | 702 | 680 | 688 | 297,000 | 1,376 |
| 1992-07-02 | 676 | 709 | 670 | 690 | 459,000 | 1,380 |
| 1992-07-01 | 635 | 672 | 631 | 672 | 327,000 | 1,344 |
| 1992-06-30 | 630 | 640 | 622 | 625 | 808,000 | 1,250 |
| 1992-06-29 | 630 | 631 | 620 | 620 | 704,000 | 1,240 |
| 1992-06-26 | 658 | 660 | 630 | 630 | 873,000 | 1,260 |
| 1992-06-25 | 665 | 666 | 640 | 650 | 1,263,000 | 1,300 |
| 1992-06-24 | 673 | 689 | 662 | 662 | 525,000 | 1,324 |
| 1992-06-23 | 670 | 689 | 661 | 671 | 562,000 | 1,342 |
| 1992-06-22 | 704 | 707 | 671 | 671 | 675,000 | 1,342 |
| 1992-06-19 | 704 | 710 | 694 | 694 | 721,000 | 1,388 |
| 1992-06-18 | 688 | 699 | 671 | 699 | 984,000 | 1,398 |
| 1992-06-17 | 713 | 715 | 698 | 698 | 676,000 | 1,396 |
| 1992-06-16 | 729 | 730 | 713 | 714 | 366,000 | 1,428 |
| 1992-06-15 | 730 | 730 | 711 | 720 | 410,000 | 1,440 |
| 1992-06-12 | 742 | 750 | 735 | 736 | 2,273,000 | 1,472 |
| 1992-06-11 | 756 | 765 | 750 | 752 | 265,000 | 1,504 |
| 1992-06-10 | 755 | 770 | 750 | 755 | 437,000 | 1,510 |
| 1992-06-09 | 754 | 760 | 750 | 758 | 140,000 | 1,516 |
| 1992-06-08 | 750 | 755 | 741 | 754 | 359,000 | 1,508 |
| 1992-06-05 | 750 | 767 | 750 | 767 | 295,000 | 1,534 |
| 1992-06-04 | 761 | 769 | 755 | 757 | 296,000 | 1,514 |
| 1992-06-03 | 779 | 779 | 762 | 770 | 180,000 | 1,540 |
| 1992-06-02 | 772 | 786 | 760 | 775 | 330,000 | 1,550 |
| 1992-06-01 | 794 | 800 | 762 | 762 | 318,000 | 1,524 |
| 1992-05-29 | 749 | 784 | 749 | 784 | 431,000 | 1,568 |
| 1992-05-28 | 752 | 754 | 738 | 741 | 656,000 | 1,482 |
| 1992-05-27 | 773 | 780 | 750 | 750 | 843,000 | 1,500 |
| 1992-05-26 | 799 | 800 | 781 | 781 | 232,000 | 1,562 |
| 1992-05-25 | 802 | 802 | 790 | 799 | 305,000 | 1,598 |
| 1992-05-22 | 802 | 808 | 795 | 795 | 295,000 | 1,590 |
| 1992-05-21 | 802 | 810 | 793 | 810 | 563,000 | 1,620 |
| 1992-05-20 | 831 | 833 | 799 | 802 | 667,000 | 1,604 |
| 1992-05-19 | 830 | 830 | 817 | 830 | 507,000 | 1,660 |
| 1992-05-18 | 820 | 829 | 805 | 823 | 781,000 | 1,646 |
| 1992-05-15 | 840 | 845 | 800 | 819 | 621,000 | 1,638 |
| 1992-05-14 | 850 | 875 | 850 | 850 | 1,431,000 | 1,700 |
| 1992-05-13 | 820 | 850 | 814 | 850 | 960,000 | 1,700 |
| 1992-05-12 | 822 | 835 | 818 | 820 | 699,000 | 1,640 |
| 1992-05-11 | 805 | 820 | 805 | 814 | 682,000 | 1,628 |
| 1992-05-08 | 780 | 805 | 780 | 798 | 956,000 | 1,596 |
| 1992-05-07 | 755 | 793 | 740 | 790 | 652,000 | 1,580 |
| 1992-05-06 | 735 | 755 | 728 | 755 | 435,000 | 1,510 |
| 1992-05-01 | 715 | 730 | 710 | 725 | 510,000 | 1,450 |
| 1992-04-30 | 730 | 730 | 705 | 705 | 499,000 | 1,410 |
| 1992-04-28 | 730 | 732 | 720 | 720 | 358,000 | 1,440 |
| 1992-04-27 | 735 | 739 | 715 | 733 | 238,000 | 1,466 |
| 1992-04-24 | 724 | 730 | 708 | 730 | 722,000 | 1,460 |
| 1992-04-23 | 699 | 720 | 695 | 714 | 543,000 | 1,428 |
| 1992-04-22 | 714 | 720 | 677 | 691 | 1,255,000 | 1,382 |
| 1992-04-21 | 730 | 739 | 711 | 715 | 761,000 | 1,430 |
| 1992-04-20 | 750 | 750 | 731 | 735 | 469,000 | 1,470 |
| 1992-04-17 | 780 | 785 | 750 | 750 | 913,000 | 1,500 |
| 1992-04-16 | 790 | 799 | 776 | 790 | 834,000 | 1,580 |
| 1992-04-15 | 795 | 805 | 770 | 780 | 1,487,000 | 1,560 |
| 1992-04-14 | 712 | 785 | 712 | 785 | 1,092,000 | 1,570 |
| 1992-04-13 | 760 | 785 | 720 | 742 | 1,195,000 | 1,484 |
| 1992-04-10 | 690 | 750 | 690 | 750 | 1,253,000 | 1,500 |
| 1992-04-09 | 724 | 745 | 650 | 650 | 1,503,000 | 1,300 |
| 1992-04-08 | 721 | 735 | 710 | 734 | 1,798,000 | 1,468 |
| 1992-04-07 | 805 | 805 | 751 | 751 | 779,000 | 1,502 |
| 1992-04-06 | 800 | 810 | 785 | 810 | 470,000 | 1,620 |
| 1992-04-03 | 805 | 810 | 750 | 785 | 1,387,000 | 1,570 |
| 1992-04-02 | 790 | 818 | 750 | 815 | 1,792,000 | 1,630 |
| 1992-04-01 | 871 | 881 | 781 | 800 | 1,815,000 | 1,600 |
| 1992-03-31 | 906 | 930 | 881 | 881 | 763,000 | 1,762 |
| 1992-03-30 | 910 | 911 | 883 | 905 | 787,000 | 1,810 |
| 1992-03-27 | 960 | 960 | 930 | 930 | 649,000 | 1,860 |
| 1992-03-26 | 964 | 970 | 952 | 955 | 236,000 | 1,910 |
| 1992-03-25 | 957 | 975 | 945 | 945 | 969,000 | 1,890 |
| 1992-03-24 | 992 | 999 | 965 | 965 | 614,000 | 1,930 |
| 1992-03-23 | 1,000 | 1,010 | 992 | 996 | 532,000 | 1,992 |
| 1992-03-19 | 960 | 1,020 | 950 | 985 | 962,000 | 1,970 |
| 1992-03-18 | 994 | 994 | 925 | 950 | 1,841,000 | 1,900 |
| 1992-03-17 | 1,000 | 1,010 | 990 | 1,000 | 1,331,000 | 2,000 |
| 1992-03-16 | 1,030 | 1,030 | 995 | 1,010 | 470,000 | 2,020 |
| 1992-03-13 | 990 | 1,040 | 990 | 1,010 | 2,280,000 | 2,020 |
| 1992-03-12 | 1,010 | 1,020 | 1,000 | 1,010 | 1,024,000 | 2,020 |
| 1992-03-11 | 1,040 | 1,040 | 1,010 | 1,010 | 616,000 | 2,020 |
| 1992-03-10 | 1,040 | 1,050 | 1,030 | 1,040 | 432,000 | 2,080 |
| 1992-03-09 | 1,050 | 1,050 | 1,040 | 1,040 | 380,000 | 2,080 |
| 1992-03-06 | 1,060 | 1,070 | 1,050 | 1,060 | 356,000 | 2,120 |
| 1992-03-05 | 1,070 | 1,070 | 1,050 | 1,050 | 463,000 | 2,100 |
| 1992-03-04 | 1,050 | 1,060 | 1,040 | 1,060 | 435,000 | 2,120 |
| 1992-03-03 | 1,070 | 1,080 | 1,040 | 1,040 | 688,000 | 2,080 |
| 1992-03-02 | 1,090 | 1,100 | 1,070 | 1,070 | 393,000 | 2,140 |
| 1992-02-28 | 1,070 | 1,100 | 1,060 | 1,070 | 992,000 | 2,140 |
| 1992-02-27 | 1,070 | 1,090 | 1,050 | 1,060 | 657,000 | 2,120 |
| 1992-02-26 | 1,060 | 1,090 | 1,060 | 1,090 | 311,000 | 2,180 |
| 1992-02-25 | 1,060 | 1,070 | 1,050 | 1,060 | 466,000 | 2,120 |
| 1992-02-24 | 1,080 | 1,090 | 1,070 | 1,070 | 223,000 | 2,140 |
| 1992-02-21 | 1,090 | 1,100 | 1,070 | 1,090 | 403,000 | 2,180 |
| 1992-02-20 | 1,060 | 1,080 | 1,050 | 1,080 | 465,000 | 2,160 |
| 1992-02-19 | 1,060 | 1,070 | 1,050 | 1,060 | 280,000 | 2,120 |
| 1992-02-18 | 1,060 | 1,080 | 1,060 | 1,070 | 675,000 | 2,140 |
| 1992-02-17 | 1,050 | 1,120 | 1,030 | 1,120 | 777,000 | 2,240 |
| 1992-02-14 | 1,070 | 1,080 | 1,050 | 1,050 | 743,000 | 2,100 |
| 1992-02-13 | 1,070 | 1,080 | 1,060 | 1,080 | 665,000 | 2,160 |
| 1992-02-12 | 1,080 | 1,090 | 1,070 | 1,070 | 388,000 | 2,140 |
| 1992-02-10 | 1,090 | 1,100 | 1,090 | 1,090 | 300,000 | 2,180 |
| 1992-02-07 | 1,120 | 1,130 | 1,100 | 1,100 | 1,173,000 | 2,200 |
| 1992-02-06 | 1,130 | 1,140 | 1,110 | 1,130 | 942,000 | 2,260 |
| 1992-02-05 | 1,150 | 1,150 | 1,110 | 1,120 | 544,000 | 2,240 |
| 1992-02-04 | 1,140 | 1,160 | 1,130 | 1,150 | 303,000 | 2,300 |
| 1992-02-03 | 1,160 | 1,180 | 1,150 | 1,160 | 1,727,000 | 2,320 |
| 1992-01-31 | 1,120 | 1,190 | 1,120 | 1,150 | 1,249,000 | 2,300 |
| 1992-01-30 | 1,100 | 1,120 | 1,090 | 1,120 | 390,000 | 2,240 |
| 1992-01-29 | 1,110 | 1,120 | 1,090 | 1,100 | 207,000 | 2,200 |
| 1992-01-28 | 1,080 | 1,120 | 1,080 | 1,120 | 201,000 | 2,240 |
| 1992-01-27 | 1,080 | 1,090 | 1,060 | 1,070 | 142,000 | 2,140 |
| 1992-01-24 | 1,100 | 1,110 | 1,060 | 1,060 | 363,000 | 2,120 |
| 1992-01-23 | 1,130 | 1,130 | 1,100 | 1,120 | 211,000 | 2,240 |
| 1992-01-22 | 1,050 | 1,090 | 1,040 | 1,090 | 428,000 | 2,180 |
| 1992-01-21 | 1,090 | 1,110 | 1,050 | 1,050 | 804,000 | 2,100 |
| 1992-01-20 | 1,110 | 1,120 | 1,080 | 1,080 | 486,000 | 2,160 |
| 1992-01-17 | 1,110 | 1,130 | 1,100 | 1,110 | 688,000 | 2,220 |
| 1992-01-16 | 1,160 | 1,160 | 1,110 | 1,120 | 453,000 | 2,240 |
| 1992-01-14 | 1,140 | 1,170 | 1,130 | 1,130 | 305,000 | 2,260 |
| 1992-01-13 | 1,150 | 1,160 | 1,130 | 1,130 | 519,000 | 2,260 |
| 1992-01-10 | 1,170 | 1,180 | 1,160 | 1,160 | 380,000 | 2,320 |
| 1992-01-09 | 1,190 | 1,210 | 1,160 | 1,200 | 1,316,000 | 2,400 |
| 1992-01-08 | 1,240 | 1,240 | 1,180 | 1,200 | 415,000 | 2,400 |
| 1992-01-07 | 1,260 | 1,280 | 1,230 | 1,230 | 315,000 | 2,460 |
| 1992-01-06 | 1,230 | 1,260 | 1,230 | 1,260 | 317,000 | 2,520 |
分割・併合履歴 ： [2016-09-28]1株→0.5株