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 — 1987

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1987-12-31$8.19$8.19376,800
1987-12-30$8.19$8.191,693,600
1987-12-29$7.75$7.75633,200
1987-12-28$7.75$7.75765,200
1987-12-24$8.13$8.13136,000
1987-12-23$8.16$8.16754,800
1987-12-22$7.88$7.87864,800
1987-12-21$8.19$8.191,043,200
1987-12-18$8.06$8.061,738,400
1987-12-17$7.38$7.37572,800
1987-12-16$7.50$7.501,090,800
1987-12-15$6.97$6.97830,000
1987-12-14$7.00$7.00485,600
1987-12-11$7.00$7.00678,000
1987-12-10$7.00$7.001,622,800
1987-12-09$7.03$7.03819,600
1987-12-08$6.75$6.75783,600
1987-12-07$6.13$6.121,709,600
1987-12-04$6.03$6.032,125,200
1987-12-03$6.06$6.062,047,200
1987-12-02$6.56$6.56853,600
1987-12-01$6.63$6.63778,000
1987-11-30$6.75$6.75901,200
1987-11-27$7.00$7.00267,600
1987-11-25$7.25$7.25408,800
1987-11-24$7.31$7.311,074,000
1987-11-23$7.06$7.061,280,400
1987-11-20$6.81$6.811,171,200
1987-11-19$6.75$6.752,077,600
1987-11-18$6.94$6.941,465,600
1987-11-17$7.06$7.06350,400
1987-11-16$7.19$7.19815,200
1987-11-13$7.25$7.25951,200
1987-11-12$7.31$7.31563,200
1987-11-11$7.56$7.56510,000
1987-11-10$7.44$7.44510,800
1987-11-09$7.69$7.691,442,800
1987-11-06$7.56$7.561,094,800
1987-11-05$7.69$7.691,002,400
1987-11-04$7.75$7.751,114,800
1987-11-03$7.69$7.69468,400
1987-11-02$8.00$8.00960,400
1987-10-30$7.75$7.75980,400
1987-10-29$7.44$7.442,072,000
1987-10-28$6.94$6.942,135,600
1987-10-27$7.06$7.062,040,400
1987-10-26$6.88$6.881,159,600
1987-10-23$7.56$7.562,797,200
1987-10-22$7.88$7.871,898,400
1987-10-21$8.19$8.193,149,200
1987-10-20$7.44$7.442,169,600
1987-10-19$8.00$8.001,888,800
1987-10-16$9.13$9.121,344,800
1987-10-15$9.38$9.371,123,200
1987-10-14$9.69$9.692,875,600
1987-10-13$9.75$9.752,360,400
1987-10-12$9.81$9.811,616,400
1987-10-09$10.19$10.193,379,600
1987-10-08$10.81$10.81429,600
1987-10-07$10.94$10.94576,800
1987-10-06$11.19$11.19829,600
1987-10-05$11.69$11.69217,600
1987-10-02$11.75$11.7556,800
1987-10-01$11.81$11.811,227,200
1987-09-30$11.56$11.56539,200
1987-09-29$11.75$11.75264,400
1987-09-28$11.88$11.87432,400
1987-09-25$11.81$11.81391,200
1987-09-24$11.44$11.44267,600
1987-09-23$11.56$11.561,136,400
1987-09-22$11.50$11.501,428,400
1987-09-21$10.94$10.941,220,800
1987-09-18$11.31$11.31531,200
1987-09-17$10.88$10.87932,000
1987-09-16$11.00$11.00736,800
1987-09-15$11.34$11.34787,600
1987-09-14$11.63$11.62589,200
1987-09-11$11.63$11.62207,600
1987-09-10$11.63$11.62691,200
1987-09-09$11.28$11.281,743,600
1987-09-08$11.44$11.441,049,200
1987-09-04$11.94$11.94405,600
1987-09-03$12.06$12.06445,200
1987-09-02$12.19$12.19476,800
1987-09-01$12.19$12.19633,600
1987-08-31$12.50$12.50378,400
1987-08-28$12.50$12.50486,400
1987-08-27$12.75$12.75652,800
1987-08-26$12.75$12.75475,200
1987-08-25$12.75$12.75244,400
1987-08-24$12.69$12.69344,000
1987-08-21$12.88$12.87403,600
1987-08-20$12.56$12.56536,800
1987-08-19$12.19$12.19449,200
1987-08-18$12.25$12.25503,200
1987-08-17$12.56$12.56548,000
1987-08-14$12.69$12.69324,400
1987-08-13$12.69$12.691,182,000
1987-08-12$12.88$12.87939,600
1987-08-11$12.88$12.872,023,600
1987-08-10$12.50$12.502,041,600
1987-08-07$12.31$12.31726,800
1987-08-06$12.13$12.12300,800
1987-08-05$12.06$12.06400,800
1987-08-04$12.06$12.06434,400
1987-08-03$12.06$12.06455,200
1987-07-31$11.94$11.94402,000
1987-07-30$11.94$11.94636,400
1987-07-29$11.56$11.56695,200
1987-07-28$11.38$11.38281,200
1987-07-27$11.31$11.31364,000
1987-07-24$11.56$11.56157,600
1987-07-23$11.41$11.41607,200
1987-07-22$11.63$11.62419,600
1987-07-21$11.69$11.69506,400
1987-07-20$11.69$11.69333,200
1987-07-17$11.75$11.75574,000
1987-07-16$11.94$11.94608,800
1987-07-15$12.00$12.00836,400
1987-07-14$12.25$12.252,787,200
1987-07-13$12.13$12.121,487,200
1987-07-10$11.81$11.811,556,400
1987-07-09$11.66$11.66676,000
1987-07-08$11.69$11.69974,800
1987-07-07$11.88$11.871,249,200
1987-07-06$11.38$11.38557,200
1987-07-02$11.50$11.501,198,000
1987-07-01$11.25$11.25284,000
1987-06-30$11.22$11.22658,800
1987-06-29$11.44$11.44174,000
1987-06-26$11.44$11.44665,600
1987-06-25$11.50$11.50141,200
1987-06-24$11.59$11.59341,200
1987-06-23$11.72$11.72522,000
1987-06-22$11.84$11.841,788,800
1987-06-19$11.63$11.621,115,200
1987-06-18$11.88$11.87716,400
1987-06-17$11.75$11.75305,200
1987-06-16$11.75$11.75950,400
1987-06-15$11.59$11.591,014,000
1987-06-12$12.00$12.00802,000
1987-06-11$11.69$11.69438,000
1987-06-10$11.63$11.621,327,600
1987-06-09$11.06$11.06553,200
1987-06-08$10.84$10.84102,000
1987-06-05$10.88$10.87298,800
1987-06-04$10.63$10.62339,600
1987-06-03$10.56$10.56454,400
1987-06-02$10.38$10.371,157,200
1987-06-01$10.63$10.62270,000
1987-05-29$10.81$10.81454,000
1987-05-28$11.00$11.00269,600
1987-05-27$10.94$10.94642,800
1987-05-26$10.81$10.81851,200
1987-05-22$10.81$10.81463,600
1987-05-21$10.94$10.94426,800
1987-05-20$10.75$10.751,437,200
1987-05-19$10.81$10.81691,200
1987-05-18$11.06$11.06665,200
1987-05-15$11.00$11.001,227,600
1987-05-14$10.88$10.87436,400
1987-05-13$11.00$11.00519,200
1987-05-12$10.75$10.75351,200
1987-05-11$10.63$10.62783,600
1987-05-08$10.69$10.69518,800
1987-05-07$10.44$10.44630,400
1987-05-06$10.44$10.441,174,800
1987-05-05$10.38$10.37403,600
1987-05-04$10.44$10.44791,600
1987-05-01$10.56$10.56763,600
1987-04-30$10.63$10.621,474,800
1987-04-29$9.63$9.621,031,200
1987-04-28$10.06$10.06978,800
1987-04-27$9.94$9.94927,200
1987-04-24$10.19$10.19686,000
1987-04-23$10.69$10.69288,400
1987-04-22$10.75$10.75466,800
1987-04-21$10.88$10.87798,800
1987-04-20$10.88$10.87482,800
1987-04-16$10.88$10.87970,800
1987-04-15$10.81$10.81730,400
1987-04-14$10.63$10.621,610,000
1987-04-13$11.50$11.50524,000
1987-04-10$11.88$11.87442,400
1987-04-09$12.00$12.00310,400
1987-04-08$12.00$12.00507,200
1987-04-07$11.88$11.87304,000
1987-04-06$12.25$12.25297,600
1987-04-03$12.06$12.06264,800
1987-04-02$11.88$11.87566,400
1987-04-01$11.88$11.87830,000
1987-03-31$12.00$12.00876,400
1987-03-30$11.75$11.751,305,600
1987-03-27$12.75$12.75810,400
1987-03-26$12.75$12.752,110,800
1987-03-25$12.44$12.44939,600
1987-03-24$12.44$12.44490,400
1987-03-23$12.44$12.44636,800
1987-03-20$12.50$12.501,144,000
1987-03-19$12.38$12.37594,800
1987-03-18$12.38$12.371,048,000
1987-03-17$12.38$12.371,909,600
1987-03-16$12.19$12.19504,000
1987-03-13$12.13$12.123,545,200
1987-03-12$11.38$11.38597,600
1987-03-11$11.44$11.44837,600
1987-03-10$11.25$11.25206,000
1987-03-09$11.13$11.12481,600
1987-03-06$11.19$11.19741,200
1987-03-05$11.19$11.19684,400
1987-03-04$11.09$11.09508,000
1987-03-03$10.81$10.81411,200
1987-03-02$10.88$10.87560,400
1987-02-27$11.06$11.06314,000
1987-02-26$11.19$11.19720,000
1987-02-25$10.97$10.97831,600
1987-02-24$10.75$10.75934,800
1987-02-23$10.72$10.72479,200
1987-02-20$10.81$10.81350,000
1987-02-19$10.88$10.87432,800
1987-02-18$10.63$10.621,346,000
1987-02-17$10.56$10.561,275,200
1987-02-13$10.25$10.251,257,600
1987-02-12$10.13$10.121,348,800
1987-02-11$9.81$9.81394,000
1987-02-10$9.56$9.56423,600
1987-02-09$9.56$9.56663,200
1987-02-06$9.81$9.811,008,800
1987-02-05$10.19$10.19904,000
1987-02-04$9.75$9.751,103,600
1987-02-03$9.44$9.44739,200
1987-02-02$9.69$9.69483,600
1987-01-30$9.72$9.72445,200
1987-01-29$9.69$9.69712,000
1987-01-28$9.94$9.94937,200
1987-01-27$9.69$9.69666,400
1987-01-26$9.25$9.25456,800
1987-01-23$9.44$9.441,741,600
1987-01-22$9.38$9.37372,800
1987-01-21$9.13$9.12923,200
1987-01-20$9.31$9.31895,200
1987-01-19$9.13$9.121,030,000
1987-01-16$8.88$8.88722,400
1987-01-15$9.06$9.062,141,600
1987-01-14$9.38$9.371,237,600
1987-01-13$9.44$9.441,000,000
1987-01-12$9.44$9.441,713,600
1987-01-09$9.75$9.75659,600
1987-01-08$9.69$9.691,178,800
1987-01-07$9.38$9.37976,800
1987-01-06$8.88$8.881,120,000
1987-01-05$9.13$9.121,222,000
1987-01-02$8.34$8.34363,600