7246 プレス工業(株) の時系列データ [1988年度]
日付 | 始値 | 高値 | 安値 | 終値 | 出来高 | 調整後終値 |
---|---|---|---|---|---|---|
1988-12-28 | 661 | 670 | 660 | 661 | 79,000 | 641.75 |
1988-12-27 | 653 | 660 | 652 | 658 | 142,000 | 638.84 |
1988-12-26 | 665 | 665 | 652 | 652 | 132,000 | 633.01 |
1988-12-24 | 666 | 670 | 660 | 670 | 115,000 | 650.49 |
1988-12-23 | 686 | 686 | 665 | 666 | 140,000 | 646.60 |
1988-12-22 | 690 | 700 | 688 | 688 | 199,000 | 667.96 |
1988-12-21 | 695 | 695 | 690 | 695 | 129,000 | 674.76 |
1988-12-20 | 700 | 700 | 695 | 695 | 66,000 | 674.76 |
1988-12-19 | 711 | 715 | 695 | 695 | 160,000 | 674.76 |
1988-12-16 | 703 | 706 | 701 | 701 | 168,000 | 680.58 |
1988-12-15 | 711 | 719 | 705 | 706 | 118,000 | 685.44 |
1988-12-14 | 730 | 730 | 711 | 711 | 195,000 | 690.29 |
1988-12-13 | 710 | 719 | 706 | 719 | 154,000 | 698.06 |
1988-12-12 | 720 | 734 | 709 | 720 | 248,000 | 699.03 |
1988-12-09 | 739 | 740 | 735 | 735 | 304,000 | 713.59 |
1988-12-08 | 740 | 740 | 735 | 740 | 240,000 | 718.45 |
1988-12-07 | 735 | 750 | 733 | 740 | 307,000 | 718.45 |
1988-12-06 | 740 | 744 | 731 | 733 | 337,000 | 711.65 |
1988-12-05 | 750 | 754 | 735 | 738 | 178,000 | 716.51 |
1988-12-03 | 739 | 747 | 735 | 740 | 166,000 | 718.45 |
1988-12-02 | 755 | 755 | 735 | 739 | 337,000 | 717.48 |
1988-12-01 | 727 | 760 | 721 | 745 | 533,000 | 723.30 |
1988-11-30 | 723 | 726 | 718 | 719 | 452,000 | 698.06 |
1988-11-29 | 725 | 732 | 720 | 720 | 198,000 | 699.03 |
1988-11-28 | 735 | 736 | 720 | 725 | 444,000 | 703.88 |
1988-11-26 | 740 | 740 | 725 | 735 | 284,000 | 713.59 |
1988-11-25 | 735 | 739 | 725 | 730 | 273,000 | 708.74 |
1988-11-24 | 745 | 745 | 730 | 735 | 366,000 | 713.59 |
1988-11-22 | 743 | 743 | 728 | 739 | 313,000 | 717.48 |
1988-11-21 | 768 | 768 | 742 | 743 | 722,000 | 721.36 |
1988-11-18 | 735 | 778 | 725 | 760 | 3,878,999 | 737.86 |
1988-11-17 | 740 | 740 | 723 | 735 | 799,000 | 713.59 |
1988-11-16 | 739 | 739 | 726 | 733 | 1,323,000 | 711.65 |
1988-11-15 | 699 | 710 | 696 | 710 | 349,000 | 689.32 |
1988-11-14 | 681 | 706 | 681 | 692 | 154,000 | 671.85 |
1988-11-11 | 685 | 690 | 685 | 685 | 139,000 | 665.05 |
1988-11-10 | 700 | 700 | 690 | 690 | 213,000 | 669.90 |
1988-11-09 | 688 | 710 | 686 | 700 | 157,000 | 679.61 |
1988-11-08 | 699 | 700 | 685 | 695 | 160,000 | 674.76 |
1988-11-07 | 710 | 710 | 682 | 690 | 273,000 | 669.90 |
1988-11-05 | 698 | 700 | 692 | 692 | 228,000 | 671.85 |
1988-11-04 | 692 | 705 | 692 | 697 | 419,000 | 676.70 |
1988-11-02 | 726 | 726 | 699 | 699 | 493,000 | 678.64 |
1988-11-01 | 711 | 729 | 707 | 716 | 325,000 | 695.15 |
1988-10-31 | 730 | 745 | 706 | 724 | 509,000 | 702.91 |
1988-10-29 | 768 | 769 | 720 | 740 | 1,541,000 | 718.45 |
1988-10-28 | 769 | 770 | 730 | 758 | 3,499,999 | 735.92 |
1988-10-27 | 682 | 770 | 680 | 760 | 3,774,999 | 737.86 |
1988-10-26 | 656 | 700 | 656 | 692 | 1,551,000 | 671.85 |
1988-10-25 | 667 | 681 | 650 | 653 | 802,000 | 633.98 |
1988-10-24 | 660 | 667 | 650 | 667 | 529,000 | 647.57 |
1988-10-22 | 652 | 652 | 641 | 650 | 317,000 | 631.07 |
1988-10-21 | 635 | 638 | 620 | 627 | 280,000 | 608.74 |
1988-10-20 | 601 | 635 | 600 | 600 | 384,000 | 582.52 |
1988-10-19 | 600 | 602 | 585 | 599 | 66,000 | 581.55 |
1988-10-18 | 629 | 629 | 605 | 605 | 109,000 | 587.38 |
1988-10-17 | 626 | 629 | 605 | 629 | 98,000 | 610.68 |
1988-10-14 | 617 | 640 | 612 | 616 | 145,000 | 598.06 |
1988-10-13 | 660 | 660 | 610 | 610 | 594,000 | 592.23 |
1988-10-12 | 574 | 670 | 574 | 660 | 1,088,000 | 640.78 |
1988-10-11 | 565 | 574 | 561 | 570 | 116,000 | 553.40 |
1988-10-07 | 566 | 566 | 562 | 562 | 49,000 | 545.63 |
1988-10-06 | 572 | 573 | 565 | 566 | 110,000 | 549.52 |
1988-10-05 | 572 | 580 | 566 | 570 | 53,000 | 553.40 |
1988-10-04 | 575 | 575 | 563 | 570 | 52,000 | 553.40 |
1988-10-03 | 580 | 585 | 570 | 570 | 65,000 | 553.40 |
1988-10-01 | 570 | 570 | 560 | 560 | 49,000 | 543.69 |
1988-09-30 | 571 | 575 | 570 | 570 | 39,000 | 553.40 |
1988-09-29 | 580 | 580 | 560 | 560 | 30,000 | 543.69 |
1988-09-28 | 569 | 570 | 550 | 555 | 73,000 | 538.84 |
1988-09-27 | 555 | 555 | 545 | 550 | 53,000 | 533.98 |
1988-09-26 | 543 | 555 | 543 | 550 | 36,000 | 533.98 |
1988-09-22 | 574 | 574 | 555 | 556 | 44,000 | 539.81 |
1988-09-21 | 560 | 565 | 555 | 556 | 48,000 | 539.81 |
1988-09-20 | 570 | 570 | 565 | 566 | 71,000 | 549.52 |
1988-09-19 | 579 | 592 | 576 | 580 | 66,000 | 563.11 |
1988-09-16 | 572 | 574 | 565 | 574 | 52,000 | 557.28 |
1988-09-14 | 569 | 573 | 560 | 572 | 110,000 | 555.34 |
1988-09-13 | 570 | 574 | 550 | 570 | 83,000 | 553.40 |
1988-09-12 | 570 | 570 | 565 | 565 | 82,000 | 548.54 |
1988-09-09 | 570 | 573 | 565 | 565 | 93,000 | 548.54 |
1988-09-08 | 565 | 574 | 565 | 573 | 47,000 | 556.31 |
1988-09-07 | 565 | 570 | 565 | 565 | 30,000 | 548.54 |
1988-09-06 | 574 | 574 | 565 | 565 | 50,000 | 548.54 |
1988-09-05 | 580 | 580 | 570 | 570 | 57,000 | 553.40 |
1988-09-03 | 551 | 575 | 551 | 560 | 76,000 | 543.69 |
1988-09-02 | 560 | 560 | 550 | 550 | 33,000 | 533.98 |
1988-09-01 | 575 | 575 | 560 | 570 | 92,000 | 553.40 |
1988-08-31 | 570 | 580 | 565 | 570 | 31,000 | 553.40 |
1988-08-30 | 580 | 585 | 560 | 560 | 98,000 | 543.69 |
1988-08-29 | 589 | 589 | 580 | 580 | 18,000 | 563.11 |
1988-08-27 | 598 | 598 | 595 | 595 | 17,000 | 577.67 |
1988-08-26 | 600 | 600 | 590 | 595 | 58,000 | 577.67 |
1988-08-25 | 620 | 620 | 606 | 606 | 48,000 | 588.35 |
1988-08-24 | 600 | 630 | 592 | 610 | 198,000 | 592.23 |
1988-08-23 | 600 | 600 | 592 | 595 | 83,000 | 577.67 |
1988-08-22 | 600 | 600 | 595 | 595 | 77,000 | 577.67 |
1988-08-19 | 598 | 598 | 591 | 597 | 88,000 | 579.61 |
1988-08-18 | 606 | 610 | 595 | 595 | 116,000 | 577.67 |
1988-08-17 | 605 | 605 | 600 | 600 | 59,000 | 582.52 |
1988-08-16 | 614 | 615 | 600 | 600 | 26,000 | 582.52 |
1988-08-15 | 615 | 620 | 613 | 613 | 29,000 | 595.15 |
1988-08-12 | 610 | 615 | 610 | 615 | 59,000 | 597.09 |
1988-08-11 | 599 | 615 | 598 | 614 | 21,000 | 596.12 |
1988-08-10 | 619 | 619 | 598 | 598 | 110,000 | 580.58 |
1988-08-09 | 620 | 620 | 600 | 619 | 47,000 | 600.97 |
1988-08-08 | 589 | 629 | 589 | 626 | 79,000 | 607.77 |
1988-08-06 | 595 | 598 | 585 | 585 | 83,000 | 567.96 |
1988-08-05 | 597 | 600 | 595 | 595 | 93,000 | 577.67 |
1988-08-04 | 605 | 607 | 592 | 595 | 74,000 | 577.67 |
1988-08-03 | 610 | 615 | 600 | 600 | 144,000 | 582.52 |
1988-08-02 | 612 | 615 | 610 | 610 | 65,000 | 592.23 |
1988-08-01 | 618 | 618 | 610 | 612 | 42,000 | 594.18 |
1988-07-30 | 620 | 620 | 600 | 608 | 54,000 | 590.29 |
1988-07-29 | 623 | 625 | 620 | 620 | 32,000 | 601.94 |
1988-07-28 | 632 | 632 | 615 | 617 | 37,000 | 599.03 |
1988-07-27 | 627 | 637 | 623 | 630 | 115,000 | 611.65 |
1988-07-26 | 593 | 610 | 593 | 608 | 68,000 | 590.29 |
1988-07-25 | 591 | 606 | 591 | 592 | 126,000 | 574.76 |
1988-07-23 | 615 | 617 | 590 | 591 | 125,000 | 573.79 |
1988-07-22 | 653 | 656 | 607 | 615 | 168,000 | 597.09 |
1988-07-21 | 668 | 670 | 652 | 653 | 165,000 | 633.98 |
1988-07-20 | 670 | 671 | 650 | 658 | 259,000 | 638.84 |
1988-07-19 | 666 | 668 | 655 | 655 | 139,000 | 635.92 |
1988-07-18 | 675 | 682 | 666 | 666 | 123,000 | 646.60 |
1988-07-15 | 684 | 684 | 672 | 672 | 192,000 | 652.43 |
1988-07-14 | 690 | 690 | 665 | 665 | 313,000 | 645.63 |
1988-07-13 | 692 | 692 | 675 | 685 | 257,000 | 665.05 |
1988-07-12 | 678 | 699 | 675 | 690 | 492,000 | 669.90 |
1988-07-11 | 673 | 680 | 673 | 675 | 146,000 | 655.34 |
1988-07-08 | 675 | 675 | 670 | 670 | 303,000 | 650.49 |
1988-07-07 | 670 | 675 | 665 | 669 | 205,000 | 649.52 |
1988-07-06 | 665 | 679 | 665 | 670 | 361,000 | 650.49 |
1988-07-05 | 665 | 673 | 661 | 664 | 409,000 | 644.66 |
1988-07-04 | 660 | 674 | 655 | 665 | 123,000 | 645.63 |
1988-07-02 | 665 | 675 | 660 | 660 | 226,000 | 640.78 |
1988-07-01 | 689 | 689 | 671 | 672 | 433,000 | 652.43 |
1988-06-30 | 670 | 693 | 670 | 676 | 461,000 | 656.31 |
1988-06-29 | 665 | 670 | 663 | 670 | 307,000 | 650.49 |
1988-06-28 | 666 | 674 | 663 | 663 | 405,000 | 643.69 |
1988-06-27 | 687 | 694 | 660 | 661 | 250,000 | 641.75 |
1988-06-25 | 709 | 709 | 682 | 685 | 253,000 | 665.05 |
1988-06-24 | 700 | 711 | 697 | 703 | 968,000 | 682.52 |
1988-06-23 | 692 | 698 | 683 | 697 | 571,000 | 676.70 |
1988-06-22 | 685 | 693 | 680 | 683 | 607,000 | 663.11 |
1988-06-21 | 666 | 678 | 666 | 675 | 247,000 | 655.34 |
1988-06-20 | 663 | 674 | 663 | 666 | 319,000 | 646.60 |
1988-06-17 | 660 | 670 | 660 | 662 | 346,000 | 642.72 |
1988-06-16 | 675 | 675 | 658 | 660 | 264,000 | 640.78 |
1988-06-15 | 670 | 680 | 668 | 675 | 351,000 | 655.34 |
1988-06-14 | 671 | 671 | 665 | 668 | 164,000 | 648.54 |
1988-06-13 | 660 | 669 | 655 | 665 | 285,000 | 645.63 |
1988-06-10 | 660 | 668 | 651 | 659 | 360,000 | 639.81 |
1988-06-09 | 675 | 680 | 660 | 660 | 239,000 | 640.78 |
1988-06-08 | 671 | 675 | 666 | 667 | 271,000 | 647.57 |
1988-06-07 | 683 | 685 | 665 | 670 | 420,000 | 650.49 |
1988-06-06 | 690 | 695 | 677 | 679 | 254,000 | 659.22 |
1988-06-04 | 697 | 698 | 680 | 690 | 237,000 | 669.90 |
1988-06-03 | 685 | 691 | 678 | 690 | 488,000 | 669.90 |
1988-06-02 | 698 | 698 | 684 | 695 | 530,000 | 674.76 |
1988-06-01 | 698 | 700 | 671 | 698 | 634,000 | 677.67 |
1988-05-31 | 707 | 709 | 688 | 688 | 1,186,000 | 667.96 |
1988-05-30 | 694 | 718 | 687 | 701 | 3,315,999 | 680.58 |
1988-05-28 | 700 | 708 | 683 | 684 | 2,791,999 | 664.08 |
1988-05-27 | 650 | 695 | 650 | 690 | 2,639,999 | 669.90 |
1988-05-26 | 631 | 650 | 630 | 644 | 342,000 | 625.24 |
1988-05-25 | 632 | 635 | 621 | 630 | 265,000 | 611.65 |
1988-05-24 | 626 | 635 | 626 | 631 | 278,000 | 612.62 |
1988-05-23 | 628 | 639 | 620 | 626 | 445,000 | 607.77 |
1988-05-20 | 646 | 646 | 639 | 640 | 326,000 | 621.36 |
1988-05-19 | 640 | 655 | 635 | 636 | 601,000 | 617.48 |
1988-05-18 | 634 | 650 | 633 | 633 | 444,000 | 614.56 |
1988-05-17 | 641 | 646 | 632 | 632 | 281,000 | 613.59 |
1988-05-16 | 657 | 657 | 632 | 641 | 284,000 | 622.33 |
1988-05-13 | 650 | 662 | 647 | 647 | 416,000 | 628.16 |
1988-05-12 | 632 | 651 | 632 | 646 | 644,000 | 627.18 |
1988-05-11 | 660 | 663 | 635 | 640 | 808,000 | 621.36 |
1988-05-10 | 636 | 658 | 632 | 650 | 997,000 | 631.07 |
1988-05-09 | 660 | 660 | 624 | 631 | 495,000 | 612.62 |
1988-05-07 | 672 | 672 | 660 | 660 | 1,789,000 | 640.78 |
1988-05-06 | 650 | 675 | 645 | 662 | 4,836,999 | 642.72 |
1988-05-02 | 639 | 657 | 638 | 657 | 1,135,000 | 637.86 |
1988-04-30 | 630 | 645 | 628 | 641 | 845,000 | 622.33 |
1988-04-28 | 638 | 658 | 630 | 630 | 2,566,999 | 611.65 |
1988-04-27 | 628 | 640 | 616 | 635 | 1,106,000 | 616.51 |
1988-04-26 | 626 | 630 | 609 | 628 | 903,000 | 609.71 |
1988-04-25 | 639 | 645 | 620 | 626 | 2,224,000 | 607.77 |
1988-04-23 | 603 | 630 | 602 | 630 | 1,833,000 | 611.65 |
1988-04-22 | 608 | 614 | 603 | 603 | 623,000 | 585.44 |
1988-04-21 | 609 | 622 | 602 | 604 | 1,687,000 | 586.41 |
1988-04-20 | 585 | 630 | 584 | 605 | 6,670,999 | 587.38 |
1988-04-19 | 565 | 575 | 555 | 575 | 941,000 | 558.25 |
1988-04-18 | 570 | 583 | 561 | 561 | 1,701,000 | 544.66 |
1988-04-15 | 548 | 574 | 548 | 560 | 1,707,000 | 543.69 |
1988-04-14 | 538 | 575 | 533 | 568 | 3,145,999 | 551.46 |
1988-04-13 | 528 | 535 | 527 | 530 | 298,000 | 514.56 |
1988-04-12 | 525 | 527 | 516 | 527 | 197,000 | 511.65 |
1988-04-11 | 526 | 530 | 525 | 525 | 171,000 | 509.71 |
1988-04-08 | 534 | 534 | 527 | 527 | 187,000 | 511.65 |
1988-04-07 | 543 | 544 | 525 | 530 | 311,000 | 514.56 |
1988-04-06 | 530 | 540 | 527 | 535 | 1,053,000 | 519.42 |
1988-04-05 | 511 | 515 | 509 | 514 | 170,000 | 499.03 |
1988-04-04 | 508 | 514 | 508 | 509 | 171,000 | 494.18 |
1988-04-02 | 503 | 510 | 503 | 508 | 61,000 | 493.20 |
1988-04-01 | 500 | 505 | 498 | 502 | 196,000 | 487.38 |
1988-03-31 | 498 | 505 | 494 | 500 | 86,000 | 485.44 |
1988-03-30 | 500 | 509 | 496 | 500 | 118,000 | 485.44 |
1988-03-29 | 491 | 500 | 490 | 500 | 70,000 | 485.44 |
1988-03-28 | 500 | 500 | 488 | 500 | 121,000 | 485.44 |
1988-03-26 | 485 | 500 | 485 | 490 | 100,000 | 475.73 |
1988-03-25 | 496 | 510 | 490 | 510 | 135,000 | 495.15 |
1988-03-24 | 514 | 515 | 480 | 480 | 119,000 | 466.02 |
1988-03-23 | 510 | 515 | 510 | 515 | 104,000 | 500 |
1988-03-22 | 511 | 518 | 511 | 511 | 88,000 | 496.12 |
1988-03-18 | 520 | 520 | 515 | 515 | 151,000 | 500 |
1988-03-17 | 515 | 519 | 510 | 516 | 175,000 | 500.97 |
1988-03-16 | 520 | 520 | 511 | 515 | 240,000 | 500 |
1988-03-15 | 519 | 520 | 512 | 520 | 209,000 | 504.85 |
1988-03-14 | 511 | 519 | 511 | 511 | 264,000 | 496.12 |
1988-03-11 | 535 | 538 | 508 | 510 | 360,000 | 495.15 |
1988-03-10 | 535 | 550 | 532 | 535 | 1,264,000 | 519.42 |
1988-03-09 | 523 | 541 | 521 | 531 | 1,732,000 | 515.53 |
1988-03-08 | 525 | 529 | 521 | 523 | 401,000 | 507.77 |
1988-03-07 | 528 | 538 | 522 | 523 | 1,138,000 | 507.77 |
1988-03-05 | 522 | 530 | 516 | 525 | 451,000 | 509.71 |
1988-03-04 | 531 | 537 | 510 | 512 | 2,204,000 | 497.09 |
1988-03-03 | 491 | 540 | 490 | 540 | 2,165,000 | 524.27 |
1988-03-02 | 490 | 498 | 486 | 486 | 455,000 | 471.85 |
1988-03-01 | 487 | 490 | 483 | 489 | 490,000 | 474.76 |
1988-02-29 | 489 | 489 | 480 | 480 | 197,000 | 466.02 |
1988-02-27 | 490 | 490 | 480 | 480 | 144,000 | 466.02 |
1988-02-26 | 490 | 492 | 485 | 485 | 291,000 | 470.87 |
1988-02-25 | 488 | 496 | 486 | 491 | 264,000 | 476.70 |
1988-02-24 | 494 | 495 | 485 | 485 | 306,000 | 470.87 |
1988-02-23 | 495 | 495 | 486 | 490 | 88,000 | 475.73 |
1988-02-22 | 497 | 499 | 485 | 485 | 131,000 | 470.87 |
1988-02-19 | 485 | 497 | 482 | 497 | 193,000 | 482.52 |
1988-02-18 | 497 | 499 | 478 | 478 | 375,000 | 464.08 |
1988-02-17 | 508 | 509 | 495 | 495 | 997,000 | 480.58 |
1988-02-16 | 489 | 504 | 486 | 502 | 1,756,000 | 487.38 |
1988-02-15 | 490 | 491 | 476 | 489 | 111,000 | 474.76 |
1988-02-12 | 489 | 490 | 480 | 488 | 224,000 | 473.79 |
1988-02-10 | 471 | 490 | 471 | 489 | 330,000 | 474.76 |
1988-02-09 | 470 | 475 | 468 | 472 | 94,000 | 458.25 |
1988-02-08 | 475 | 475 | 468 | 470 | 146,000 | 456.31 |
1988-02-06 | 475 | 476 | 468 | 476 | 87,000 | 462.14 |
1988-02-05 | 482 | 487 | 477 | 477 | 270,000 | 463.11 |
1988-02-04 | 486 | 490 | 482 | 482 | 368,000 | 467.96 |
1988-02-03 | 490 | 492 | 485 | 486 | 356,000 | 471.85 |
1988-02-02 | 490 | 504 | 480 | 485 | 1,395,000 | 470.87 |
1988-02-01 | 468 | 489 | 468 | 489 | 386,000 | 474.76 |
1988-01-30 | 470 | 472 | 467 | 470 | 133,000 | 456.31 |
1988-01-29 | 465 | 473 | 460 | 473 | 211,000 | 459.22 |
1988-01-28 | 467 | 471 | 460 | 465 | 171,000 | 451.46 |
1988-01-27 | 462 | 468 | 460 | 464 | 215,000 | 450.49 |
1988-01-26 | 475 | 480 | 455 | 455 | 215,000 | 441.75 |
1988-01-25 | 485 | 488 | 480 | 480 | 535,000 | 466.02 |
1988-01-23 | 487 | 488 | 480 | 480 | 611,000 | 466.02 |
1988-01-22 | 479 | 485 | 476 | 480 | 997,000 | 466.02 |
1988-01-21 | 459 | 484 | 451 | 477 | 1,361,000 | 463.11 |
1988-01-20 | 440 | 468 | 440 | 467 | 818,000 | 453.40 |
1988-01-19 | 443 | 448 | 436 | 436 | 55,000 | 423.30 |
1988-01-18 | 436 | 450 | 436 | 449 | 183,000 | 435.92 |
1988-01-14 | 430 | 435 | 430 | 431 | 90,000 | 418.45 |
1988-01-13 | 435 | 435 | 430 | 430 | 68,000 | 417.48 |
1988-01-12 | 435 | 440 | 435 | 440 | 123,000 | 427.18 |
1988-01-11 | 430 | 435 | 429 | 433 | 45,000 | 420.39 |
1988-01-08 | 430 | 440 | 427 | 435 | 86,000 | 422.33 |
1988-01-07 | 420 | 429 | 420 | 425 | 74,000 | 412.62 |
1988-01-06 | 415 | 422 | 415 | 421 | 53,000 | 408.74 |
1988-01-05 | 409 | 420 | 405 | 410 | 48,000 | 398.06 |
1988-01-04 | 415 | 415 | 400 | 400 | 27,000 | 388.35 |
分割・併合履歴 : [1990-03-27]1株→1.03株 [1986-03-27]1株→1.1株