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 — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$45.63$45.621,163,000
1999-12-30$45.66$45.661,798,600
1999-12-29$45.44$45.441,591,400
1999-12-28$45.63$45.624,454,400
1999-12-27$44.75$44.754,122,000
1999-12-23$44.56$44.564,285,800
1999-12-22$43.75$43.753,994,000
1999-12-21$43.56$43.567,052,400
1999-12-20$44.16$44.163,361,200
1999-12-17$45.28$45.286,838,200
1999-12-16$45.00$45.002,600,400
1999-12-15$45.66$45.665,532,600
1999-12-14$45.72$45.723,689,200
1999-12-13$46.97$46.976,324,200
1999-12-10$45.88$45.873,850,800
1999-12-09$45.97$45.978,479,400
1999-12-08$46.09$46.092,696,600
1999-12-07$47.75$47.753,196,400
1999-12-06$49.00$49.003,243,800
1999-12-03$49.34$49.348,162,800
1999-12-02$47.81$47.8110,037,600
1999-12-01$47.72$47.726,191,200
1999-11-30$45.84$45.843,812,600
1999-11-29$46.16$46.165,585,400
1999-11-26$44.25$44.251,210,200
1999-11-24$43.56$43.562,196,000
1999-11-23$42.84$42.845,127,200
1999-11-22$41.41$41.412,785,800
1999-11-19$42.69$42.692,506,000
1999-11-18$43.00$43.002,355,200
1999-11-17$43.03$43.033,189,000
1999-11-16$43.53$43.533,390,000
1999-11-15$43.63$43.623,316,600
1999-11-12$44.44$44.447,712,000
1999-11-11$44.75$44.756,676,200
1999-11-10$42.59$42.594,823,600
1999-11-09$42.63$42.635,175,400
1999-11-08$43.25$43.253,598,400
1999-11-05$42.75$42.755,181,000
1999-11-04$40.69$40.696,434,800
1999-11-03$40.66$40.664,689,600
1999-11-02$40.28$40.284,100,400
1999-11-01$39.28$39.284,382,200
1999-10-29$40.16$40.166,750,600
1999-10-28$39.16$39.165,336,800
1999-10-27$36.00$36.005,450,600
1999-10-26$36.00$36.007,368,000
1999-10-25$37.00$37.004,052,600
1999-10-22$37.28$37.285,250,600
1999-10-21$36.75$36.755,504,200
1999-10-20$37.94$37.942,938,600
1999-10-19$37.16$37.164,917,600
1999-10-18$36.97$36.973,820,800
1999-10-15$37.25$37.255,915,600
1999-10-14$39.47$39.474,384,000
1999-10-13$38.59$38.596,480,400
1999-10-12$40.38$40.374,566,600
1999-10-11$41.97$41.974,517,200
1999-10-08$41.30$41.305,562,200
1999-10-07$39.06$39.064,167,600
1999-10-06$39.38$39.387,703,600
1999-10-05$39.66$39.668,899,000
1999-10-04$38.63$38.629,530,200
1999-10-01$36.50$36.5010,459,200
1999-09-30$36.00$36.005,967,800
1999-09-29$35.19$35.194,991,200
1999-09-28$36.22$36.223,820,000
1999-09-27$36.22$36.223,626,400
1999-09-24$36.16$36.1611,556,800
1999-09-23$35.16$35.1611,141,400
1999-09-22$34.22$34.227,955,800
1999-09-21$33.38$33.3812,887,800
1999-09-20$33.06$33.065,946,800
1999-09-17$33.75$33.757,142,400
1999-09-16$33.34$33.344,296,400
1999-09-15$33.53$33.537,194,800
1999-09-14$33.78$33.789,291,800
1999-09-13$34.41$34.415,822,800
1999-09-10$34.94$34.949,282,600
1999-09-09$35.78$35.782,886,400
1999-09-08$35.97$35.974,148,000
1999-09-07$36.31$36.312,387,400
1999-09-03$37.03$37.034,323,600
1999-09-02$36.06$36.066,671,800
1999-09-01$36.91$36.914,230,800
1999-08-31$37.38$37.373,982,000
1999-08-30$38.03$38.031,961,600
1999-08-27$38.53$38.532,396,600
1999-08-26$39.25$39.253,258,600
1999-08-25$39.25$39.256,632,000
1999-08-24$40.72$40.722,878,400
1999-08-23$40.03$40.031,903,600
1999-08-20$39.25$39.252,530,800
1999-08-19$38.41$38.412,032,800
1999-08-18$39.34$39.343,983,600
1999-08-17$39.50$39.504,235,600
1999-08-16$37.84$37.842,430,800
1999-08-13$37.41$37.413,092,600
1999-08-12$37.50$37.506,217,600
1999-08-11$37.63$37.623,248,000
1999-08-10$36.06$36.066,839,200
1999-08-09$35.84$35.844,772,200
1999-08-06$35.88$35.872,885,400
1999-08-05$36.88$36.876,231,200
1999-08-04$36.55$36.554,803,800
1999-08-03$36.81$36.813,237,200
1999-08-02$36.84$36.843,896,800
1999-07-30$37.38$37.376,167,800
1999-07-29$37.22$37.225,352,000
1999-07-28$38.44$38.442,422,600
1999-07-27$38.53$38.533,054,200
1999-07-26$38.50$38.502,689,600
1999-07-23$38.53$38.532,690,800
1999-07-22$38.97$38.973,882,400
1999-07-21$40.00$40.003,244,800
1999-07-20$41.09$41.092,597,200
1999-07-19$42.94$42.941,746,400
1999-07-16$42.81$42.811,913,800
1999-07-15$42.00$42.003,194,000
1999-07-14$42.03$42.032,035,400
1999-07-13$41.94$41.942,525,800
1999-07-12$42.28$42.282,335,200
1999-07-09$42.97$42.972,047,800
1999-07-08$43.28$43.286,527,600
1999-07-07$41.22$41.223,214,800
1999-07-06$40.69$40.693,887,800
1999-07-02$40.91$40.911,966,200
1999-07-01$40.81$40.814,624,600
1999-06-30$40.03$40.035,475,000
1999-06-29$39.56$39.563,925,800
1999-06-28$38.28$38.283,632,200
1999-06-25$36.66$36.661,753,800
1999-06-24$36.38$36.382,526,400
1999-06-23$37.06$37.063,320,800
1999-06-22$37.88$37.872,924,400
1999-06-21$38.53$38.532,411,200
1999-06-18$37.16$37.164,985,800
1999-06-17$37.94$37.943,652,800
1999-06-16$38.23$38.234,924,800
1999-06-15$35.72$35.723,134,000
1999-06-14$35.88$35.872,517,200
1999-06-11$36.25$36.252,176,000
1999-06-10$36.97$36.973,041,400
1999-06-09$37.44$37.442,401,200
1999-06-08$37.69$37.692,297,400
1999-06-07$38.19$38.192,454,400
1999-06-04$38.44$38.442,999,000
1999-06-03$36.69$36.693,412,000
1999-06-02$37.22$37.222,335,200
1999-06-01$36.34$36.344,024,600
1999-05-28$36.25$36.258,023,800
1999-05-27$35.56$35.5613,214,800
1999-05-26$36.75$36.754,629,400
1999-05-25$37.03$37.033,683,400
1999-05-24$38.88$38.875,835,600
1999-05-21$37.50$37.503,579,400
1999-05-20$38.25$38.252,011,600
1999-05-19$38.38$38.374,282,800
1999-05-18$38.78$38.784,864,800
1999-05-17$39.50$39.504,232,400
1999-05-14$40.56$40.563,302,000
1999-05-13$41.66$41.663,866,200
1999-05-12$40.66$40.663,537,800
1999-05-11$41.19$41.195,204,200
1999-05-10$40.50$40.504,303,400
1999-05-07$39.47$39.479,041,400
1999-05-06$39.59$39.597,035,800
1999-05-05$40.94$40.9410,701,600
1999-05-04$41.25$41.253,811,000
1999-05-03$42.13$42.124,124,600
1999-04-30$40.47$40.475,427,200
1999-04-29$40.56$40.565,267,000
1999-04-28$42.78$42.783,640,400
1999-04-27$43.88$43.873,420,000
1999-04-26$44.50$44.502,253,200
1999-04-23$43.56$43.563,002,200
1999-04-22$43.47$43.475,326,200
1999-04-21$42.06$42.064,205,800
1999-04-20$41.13$41.125,248,200
1999-04-19$39.00$39.006,986,000
1999-04-16$40.84$40.845,563,600
1999-04-15$41.63$41.628,755,400
1999-04-14$43.00$43.005,972,800
1999-04-13$44.41$44.412,603,200
1999-04-12$44.91$44.913,289,000
1999-04-09$44.94$44.942,770,400
1999-04-08$44.66$44.664,689,200
1999-04-07$45.44$45.445,019,000
1999-04-06$46.25$46.254,052,600
1999-04-05$45.13$45.132,940,200
1999-04-01$44.97$44.973,752,200
1999-03-31$45.78$45.783,299,000
1999-03-30$45.00$45.003,287,600
1999-03-29$45.91$45.912,271,200
1999-03-26$45.50$45.502,876,400
1999-03-25$45.28$45.282,536,600
1999-03-24$44.00$44.003,973,800
1999-03-23$44.22$44.223,290,200
1999-03-22$44.50$44.503,157,000
1999-03-19$43.97$43.974,792,600
1999-03-18$45.59$45.591,489,400
1999-03-17$45.28$45.282,048,000
1999-03-16$44.81$44.812,240,800
1999-03-15$45.56$45.563,375,400
1999-03-12$44.28$44.284,392,200
1999-03-11$45.25$45.254,850,800
1999-03-10$45.31$45.313,296,600
1999-03-09$45.25$45.253,617,400
1999-03-08$45.13$45.136,388,800
1999-03-05$45.28$45.286,031,600
1999-03-04$43.38$43.378,938,000
1999-03-03$41.81$41.817,303,200
1999-03-02$41.16$41.164,249,800
1999-03-01$42.19$42.193,020,000
1999-02-26$40.16$40.162,634,600
1999-02-25$40.56$40.562,762,000
1999-02-24$41.63$41.623,872,200
1999-02-23$42.13$42.122,891,800
1999-02-22$41.00$41.002,545,000
1999-02-19$40.81$40.813,232,600
1999-02-18$41.91$41.913,997,000
1999-02-17$40.78$40.783,623,600
1999-02-16$40.97$40.975,425,400
1999-02-12$39.13$39.124,508,000
1999-02-11$40.56$40.563,819,400
1999-02-10$38.41$38.413,258,000
1999-02-09$36.91$36.913,107,600
1999-02-08$38.56$38.562,400,800
1999-02-05$38.47$38.473,194,200
1999-02-04$38.63$38.624,441,000
1999-02-03$39.41$39.414,787,600
1999-02-02$38.78$38.784,435,600
1999-02-01$39.73$39.734,845,600
1999-01-29$41.44$41.444,867,800
1999-01-28$40.75$40.755,107,400
1999-01-27$38.53$38.534,772,200
1999-01-26$36.84$36.843,311,400
1999-01-25$35.63$35.621,729,600
1999-01-22$35.81$35.811,888,200
1999-01-21$36.06$36.063,639,200
1999-01-20$37.13$37.123,243,000
1999-01-19$37.44$37.442,782,000
1999-01-15$37.16$37.162,741,400
1999-01-14$36.22$36.223,176,000
1999-01-13$36.50$36.502,904,800
1999-01-12$36.16$36.164,284,800
1999-01-11$36.25$36.252,071,000
1999-01-08$36.84$36.846,172,800
1999-01-07$37.56$37.563,449,200
1999-01-06$37.81$37.813,897,800
1999-01-05$36.44$36.442,852,000
1999-01-04$35.75$35.754,260,000