NASDAQ:COST | Historical Stock Price | COSTCO WHOLESALE CORP /NEW

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1986-07-09 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$5.73$17.80$55.28$171.70$533.32$1,656.561986-07-092026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 1991

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1991-12-31$12.56$12.566,741,200
1991-12-30$12.38$12.375,617,600
1991-12-27$11.69$11.692,367,600
1991-12-26$11.75$11.751,936,400
1991-12-24$11.63$11.622,021,200
1991-12-23$11.56$11.562,350,400
1991-12-20$11.50$11.505,289,600
1991-12-19$11.00$11.0010,818,400
1991-12-18$12.13$12.124,051,600
1991-12-17$12.88$12.872,436,400
1991-12-16$13.06$13.061,700,800
1991-12-13$13.06$13.061,577,600
1991-12-12$12.75$12.752,366,400
1991-12-11$12.63$12.622,558,000
1991-12-10$13.13$13.12964,400
1991-12-09$13.00$13.002,284,000
1991-12-06$13.06$13.062,930,800
1991-12-05$13.06$13.062,682,800
1991-12-04$13.44$13.441,899,600
1991-12-03$13.88$13.871,558,000
1991-12-02$13.94$13.941,998,400
1991-11-29$13.94$13.94224,800
1991-11-27$13.94$13.94682,400
1991-11-26$13.94$13.941,925,600
1991-11-25$14.00$14.001,871,200
1991-11-22$14.19$14.19992,000
1991-11-21$14.00$14.00890,800
1991-11-20$14.19$14.192,012,800
1991-11-19$13.81$13.812,702,800
1991-11-18$14.25$14.251,216,800
1991-11-15$14.13$14.121,455,600
1991-11-14$15.00$15.001,328,000
1991-11-13$15.19$15.191,390,800
1991-11-12$15.03$15.031,049,200
1991-11-11$14.88$14.87386,000
1991-11-08$14.88$14.871,055,200
1991-11-07$14.81$14.812,634,000
1991-11-06$14.31$14.311,659,600
1991-11-05$14.13$14.121,405,200
1991-11-04$14.25$14.251,796,800
1991-11-01$14.44$14.441,491,200
1991-10-31$14.88$14.871,407,600
1991-10-30$15.09$15.093,147,200
1991-10-29$14.94$14.941,192,000
1991-10-28$14.50$14.50878,400
1991-10-25$14.19$14.191,416,800
1991-10-24$14.22$14.222,081,600
1991-10-23$14.44$14.443,321,200
1991-10-22$15.06$15.061,974,400
1991-10-21$15.13$15.121,362,400
1991-10-18$15.25$15.251,434,000
1991-10-17$14.94$14.941,582,000
1991-10-16$15.44$15.441,173,200
1991-10-15$15.06$15.061,079,200
1991-10-14$14.75$14.751,496,800
1991-10-11$14.31$14.31958,000
1991-10-10$14.13$14.122,029,600
1991-10-09$13.75$13.752,309,600
1991-10-08$14.31$14.311,583,200
1991-10-07$14.13$14.121,158,800
1991-10-04$14.31$14.31934,000
1991-10-03$14.47$14.471,397,200
1991-10-02$14.81$14.81347,200
1991-10-01$15.06$15.06904,400
1991-09-30$15.06$15.06878,400
1991-09-27$15.13$15.121,355,200
1991-09-26$14.81$14.811,337,200
1991-09-25$15.00$15.001,412,000
1991-09-24$14.69$14.691,910,800
1991-09-23$14.63$14.632,355,200
1991-09-20$14.63$14.63666,000
1991-09-19$14.50$14.501,189,600
1991-09-18$14.78$14.781,543,600
1991-09-17$14.56$14.561,476,800
1991-09-16$14.88$14.871,657,200
1991-09-13$14.63$14.631,301,200
1991-09-12$14.94$14.941,320,400
1991-09-11$14.84$14.84998,000
1991-09-10$14.88$14.872,522,400
1991-09-09$15.38$15.37261,600
1991-09-06$15.25$15.251,257,200
1991-09-05$15.59$15.591,073,600
1991-09-04$15.63$15.621,282,000
1991-09-03$16.00$16.002,579,600
1991-08-30$15.88$15.87556,000
1991-08-29$16.00$16.002,010,000
1991-08-28$15.94$15.942,058,400
1991-08-27$15.66$15.66708,800
1991-08-26$15.56$15.56899,600
1991-08-23$15.44$15.44968,400
1991-08-22$15.41$15.411,716,800
1991-08-21$15.50$15.501,599,200
1991-08-20$15.03$15.031,143,200
1991-08-19$15.06$15.061,942,800
1991-08-16$15.44$15.441,662,400
1991-08-15$15.38$15.372,635,600
1991-08-14$15.63$15.624,947,200
1991-08-13$15.00$15.003,984,000
1991-08-12$14.50$14.503,940,800
1991-08-09$14.00$14.001,596,400
1991-08-08$13.75$13.752,648,800
1991-08-07$13.13$13.121,050,800
1991-08-06$13.38$13.371,080,800
1991-08-05$13.06$13.06970,400
1991-08-02$13.09$13.091,441,200
1991-08-01$13.44$13.441,013,200
1991-07-31$13.63$13.62778,400
1991-07-30$13.56$13.56702,800
1991-07-29$13.19$13.19246,000
1991-07-26$13.06$13.06316,000
1991-07-25$12.88$12.87834,800
1991-07-24$12.63$12.621,968,800
1991-07-23$12.69$12.691,600,000
1991-07-22$13.19$13.19350,400
1991-07-19$13.25$13.25608,000
1991-07-18$13.38$13.37810,000
1991-07-17$13.34$13.34717,200
1991-07-16$13.56$13.56775,600
1991-07-15$13.63$13.62548,000
1991-07-12$13.69$13.69774,400
1991-07-11$13.75$13.75862,000
1991-07-10$13.63$13.621,909,600
1991-07-09$13.56$13.561,626,000
1991-07-08$13.94$13.941,776,800
1991-07-05$13.47$13.47110,000
1991-07-03$13.44$13.44483,200
1991-07-02$13.50$13.50569,600
1991-07-01$13.50$13.50782,400
1991-06-28$13.50$13.50764,400
1991-06-27$13.59$13.59846,800
1991-06-26$13.13$13.121,321,200
1991-06-25$13.00$13.001,445,600
1991-06-24$13.38$13.37856,000
1991-06-21$13.94$13.941,638,400
1991-06-20$13.81$13.811,400,400
1991-06-19$13.69$13.69968,800
1991-06-18$13.56$13.56864,400
1991-06-17$13.59$13.591,907,200
1991-06-14$13.44$13.442,151,200
1991-06-13$13.09$13.09643,200
1991-06-12$13.19$13.19974,400
1991-06-11$13.38$13.37824,000
1991-06-10$13.19$13.19765,200
1991-06-07$13.38$13.37840,800
1991-06-06$13.81$13.811,767,600
1991-06-05$13.59$13.59879,200
1991-06-04$13.78$13.78795,200
1991-06-03$13.69$13.69380,800
1991-05-31$13.88$13.871,987,200
1991-05-30$14.13$14.121,587,200
1991-05-29$14.38$14.372,232,000
1991-05-28$14.25$14.251,344,400
1991-05-24$13.78$13.781,211,600
1991-05-23$13.66$13.661,751,600
1991-05-22$13.78$13.783,150,000
1991-05-21$13.00$13.00679,200
1991-05-20$12.63$12.621,030,000
1991-05-17$12.56$12.56835,600
1991-05-16$12.53$12.532,309,200
1991-05-15$12.50$12.501,374,000
1991-05-14$13.00$13.001,487,200
1991-05-13$13.13$13.121,212,400
1991-05-10$13.31$13.311,708,400
1991-05-09$13.59$13.59851,600
1991-05-08$13.25$13.25716,400
1991-05-07$13.31$13.311,471,200
1991-05-06$13.25$13.25746,800
1991-05-03$13.13$13.121,042,800
1991-05-02$13.00$13.00988,000
1991-05-01$13.06$13.061,908,000
1991-04-30$12.75$12.752,650,000
1991-04-29$12.63$12.621,165,600
1991-04-26$13.06$13.06912,800
1991-04-25$13.25$13.251,951,600
1991-04-24$13.63$13.62617,200
1991-04-23$13.56$13.561,083,200
1991-04-22$13.50$13.501,336,800
1991-04-19$13.88$13.871,804,000
1991-04-18$14.06$14.061,569,600
1991-04-17$14.56$14.563,950,400
1991-04-16$14.06$14.062,212,800
1991-04-15$13.44$13.441,507,200
1991-04-12$13.31$13.311,499,200
1991-04-11$13.25$13.252,491,200
1991-04-10$13.13$13.122,561,600
1991-04-09$12.75$12.75976,400
1991-04-08$13.00$13.001,390,000
1991-04-05$13.25$13.254,358,000
1991-04-04$13.00$13.007,562,400
1991-04-03$12.13$12.125,113,200
1991-04-02$11.94$11.944,176,800
1991-04-01$11.56$11.56716,000
1991-03-28$11.69$11.692,252,400
1991-03-27$11.25$11.251,204,800
1991-03-26$11.50$11.501,771,600
1991-03-25$11.38$11.38856,800
1991-03-22$11.25$11.251,357,600
1991-03-21$11.16$11.161,394,400
1991-03-20$11.00$11.001,147,200
1991-03-19$10.63$10.62480,800
1991-03-18$10.81$10.81595,600
1991-03-15$10.66$10.661,079,600
1991-03-14$10.53$10.53967,600
1991-03-13$10.75$10.75468,800
1991-03-12$10.38$10.37703,600
1991-03-11$10.56$10.56939,200
1991-03-08$10.81$10.811,466,000
1991-03-07$10.94$10.941,380,000
1991-03-06$11.00$11.001,279,600
1991-03-05$11.00$11.001,494,800
1991-03-04$11.00$11.001,836,400
1991-03-01$10.63$10.621,246,400
1991-02-28$10.34$10.344,698,800
1991-02-27$10.00$10.004,442,400
1991-02-26$10.03$10.032,153,200
1991-02-25$10.25$10.251,708,000
1991-02-22$10.50$10.501,220,400
1991-02-21$10.81$10.812,341,200
1991-02-20$11.00$11.001,284,800
1991-02-19$11.31$11.312,076,000
1991-02-15$11.25$11.253,922,800
1991-02-14$10.91$10.914,557,200
1991-02-13$11.44$11.441,320,000
1991-02-12$11.38$11.381,650,400
1991-02-11$11.25$11.252,105,600
1991-02-08$10.91$10.912,287,200
1991-02-07$11.09$11.092,093,600
1991-02-06$11.44$11.443,462,800
1991-02-05$11.44$11.442,685,600
1991-02-04$11.19$11.191,159,200
1991-02-01$10.94$10.94999,600
1991-01-31$11.13$11.12965,200
1991-01-30$10.94$10.941,676,400
1991-01-29$10.69$10.691,682,800
1991-01-28$10.50$10.501,367,200
1991-01-25$10.94$10.941,043,200
1991-01-24$10.97$10.972,341,600
1991-01-23$11.00$11.001,638,000
1991-01-22$10.66$10.661,250,000
1991-01-21$10.88$10.872,858,400
1991-01-18$10.94$10.944,522,800
1991-01-17$10.69$10.695,076,400
1991-01-16$10.19$10.193,392,400
1991-01-15$9.88$9.881,492,000
1991-01-14$9.94$9.942,934,000
1991-01-11$10.16$10.168,741,600
1991-01-10$9.69$9.692,976,800
1991-01-09$9.63$9.622,530,000
1991-01-08$9.56$9.561,502,000
1991-01-07$9.44$9.44758,000
1991-01-04$9.69$9.691,152,000
1991-01-03$9.56$9.561,258,800
1991-01-02$9.69$9.691,078,000