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 — 1998

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1998-12-31$36.09$36.092,095,600
1998-12-30$35.63$35.623,728,000
1998-12-29$37.44$37.444,308,600
1998-12-28$35.13$35.122,236,200
1998-12-24$34.38$34.371,115,800
1998-12-23$34.31$34.312,937,600
1998-12-22$33.72$33.724,005,800
1998-12-21$32.50$32.504,074,000
1998-12-18$32.66$32.666,485,800
1998-12-17$33.63$33.622,571,800
1998-12-16$33.88$33.874,215,000
1998-12-15$32.97$32.973,960,400
1998-12-14$32.72$32.725,983,000
1998-12-11$33.47$33.474,094,800
1998-12-10$33.13$33.123,231,200
1998-12-09$33.41$33.414,511,400
1998-12-08$32.63$32.627,152,000
1998-12-07$31.13$31.122,501,400
1998-12-04$30.25$30.254,254,400
1998-12-03$28.69$28.695,327,200
1998-12-02$30.34$30.344,227,400
1998-12-01$31.31$31.313,030,000
1998-11-30$31.38$31.375,392,400
1998-11-27$31.88$31.871,861,800
1998-11-25$30.88$30.881,713,400
1998-11-24$30.25$30.253,029,600
1998-11-23$31.13$31.122,012,600
1998-11-20$30.84$30.841,537,000
1998-11-19$30.94$30.942,823,600
1998-11-18$30.34$30.341,974,800
1998-11-17$30.09$30.093,288,600
1998-11-16$30.16$30.165,209,400
1998-11-13$29.25$29.253,607,400
1998-11-12$28.47$28.473,960,200
1998-11-11$28.72$28.724,566,800
1998-11-10$29.00$29.005,462,000
1998-11-09$30.00$30.003,275,400
1998-11-06$31.00$31.004,363,200
1998-11-05$31.38$31.375,939,000
1998-11-04$29.88$29.872,591,800
1998-11-03$28.47$28.472,120,600
1998-11-02$29.38$29.372,067,800
1998-10-30$28.38$28.372,838,400
1998-10-29$28.09$28.092,985,000
1998-10-28$27.84$27.843,382,000
1998-10-27$27.28$27.283,772,600
1998-10-26$27.78$27.783,180,400
1998-10-23$28.56$28.562,492,400
1998-10-22$29.00$29.003,160,000
1998-10-21$28.19$28.193,813,000
1998-10-20$28.16$28.168,023,600
1998-10-19$27.41$27.419,703,600
1998-10-16$25.97$25.977,051,200
1998-10-15$25.16$25.165,620,200
1998-10-14$23.47$23.475,970,400
1998-10-13$23.31$23.313,829,000
1998-10-12$24.06$24.063,556,400
1998-10-09$23.50$23.504,730,200
1998-10-08$22.44$22.446,532,200
1998-10-07$23.03$23.034,888,000
1998-10-06$23.00$23.005,215,000
1998-10-05$22.16$22.165,512,600
1998-10-02$22.19$22.199,697,000
1998-10-01$22.25$22.2510,325,800
1998-09-30$23.69$23.696,409,600
1998-09-29$24.25$24.256,019,200
1998-09-28$24.97$24.975,160,200
1998-09-25$24.81$24.818,211,000
1998-09-24$25.16$25.168,148,200
1998-09-23$26.88$26.885,786,000
1998-09-22$25.94$25.943,656,600
1998-09-21$26.69$26.692,756,400
1998-09-18$26.56$26.563,480,400
1998-09-17$26.63$26.622,974,800
1998-09-16$27.56$27.565,793,000
1998-09-15$26.25$26.253,352,400
1998-09-14$26.16$26.164,163,600
1998-09-11$25.91$25.913,732,600
1998-09-10$25.81$25.816,643,000
1998-09-09$27.09$27.096,526,800
1998-09-08$27.69$27.699,867,600
1998-09-04$24.88$24.887,448,000
1998-09-03$24.97$24.9720,460,000
1998-09-02$22.53$22.5326,038,800
1998-09-01$24.88$24.8810,547,000
1998-08-31$23.53$23.536,459,400
1998-08-28$26.53$26.534,988,600
1998-08-27$27.66$27.666,469,600
1998-08-26$28.75$28.754,843,000
1998-08-25$28.03$28.033,974,000
1998-08-24$28.75$28.752,543,200
1998-08-21$28.63$28.633,185,400
1998-08-20$29.22$29.223,453,600
1998-08-19$29.38$29.374,143,600
1998-08-18$29.69$29.693,876,000
1998-08-17$27.63$27.633,244,400
1998-08-14$27.63$27.633,628,800
1998-08-13$28.34$28.344,101,000
1998-08-12$28.63$28.635,657,000
1998-08-11$28.88$28.875,186,600
1998-08-10$29.31$29.314,448,800
1998-08-07$28.69$28.696,028,800
1998-08-06$27.27$27.274,307,600
1998-08-05$27.31$27.317,090,600
1998-08-04$26.69$26.696,594,600
1998-08-03$27.84$27.845,344,800
1998-07-31$28.38$28.372,828,400
1998-07-30$29.73$29.733,803,600
1998-07-29$28.81$28.813,113,000
1998-07-28$29.53$29.532,906,600
1998-07-27$30.56$30.563,734,200
1998-07-24$31.06$31.066,686,600
1998-07-23$31.88$31.873,180,200
1998-07-22$32.50$32.501,894,800
1998-07-21$32.25$32.251,975,200
1998-07-20$32.44$32.442,462,600
1998-07-17$32.09$32.093,402,000
1998-07-16$31.84$31.842,829,400
1998-07-15$31.91$31.911,630,800
1998-07-14$32.41$32.412,470,200
1998-07-13$31.69$31.691,220,600
1998-07-10$31.72$31.723,948,600
1998-07-09$31.63$31.622,267,400
1998-07-08$31.97$31.972,039,600
1998-07-07$31.66$31.662,060,000
1998-07-06$31.53$31.532,786,600
1998-07-02$30.75$30.751,764,000
1998-07-01$30.78$30.783,903,800
1998-06-30$31.53$31.534,041,600
1998-06-29$31.61$31.612,434,400
1998-06-26$31.53$31.532,688,400
1998-06-25$31.22$31.221,753,800
1998-06-24$30.94$30.942,476,400
1998-06-23$31.38$31.372,727,600
1998-06-22$31.09$31.092,115,000
1998-06-19$30.94$30.942,875,800
1998-06-18$31.03$31.035,113,800
1998-06-17$29.88$29.875,789,000
1998-06-16$29.25$29.256,504,000
1998-06-15$29.59$29.591,573,600
1998-06-12$30.00$30.003,749,400
1998-06-11$29.94$29.943,252,200
1998-06-10$29.94$29.943,860,400
1998-06-09$29.94$29.943,365,800
1998-06-08$30.16$30.163,648,000
1998-06-05$29.22$29.221,997,400
1998-06-04$29.28$29.284,059,800
1998-06-03$28.91$28.914,936,000
1998-06-02$28.75$28.754,468,400
1998-06-01$28.31$28.313,371,200
1998-05-29$28.94$28.945,766,000
1998-05-28$28.38$28.374,760,400
1998-05-27$27.50$27.502,823,000
1998-05-26$27.22$27.223,102,000
1998-05-22$26.81$26.813,442,000
1998-05-21$26.69$26.694,473,600
1998-05-20$27.19$27.193,466,400
1998-05-19$27.06$27.063,852,800
1998-05-18$27.69$27.692,236,600
1998-05-15$27.69$27.693,608,800
1998-05-14$27.59$27.591,959,400
1998-05-13$28.00$28.001,648,200
1998-05-12$28.22$28.221,670,000
1998-05-11$28.28$28.281,477,200
1998-05-08$28.38$28.371,528,600
1998-05-07$27.56$27.561,844,400
1998-05-06$27.59$27.591,504,400
1998-05-05$27.42$27.422,068,800
1998-05-04$27.84$27.841,529,600
1998-05-01$27.81$27.811,678,200
1998-04-30$27.94$27.942,396,000
1998-04-29$26.88$26.882,323,400
1998-04-28$27.31$27.313,258,400
1998-04-27$27.25$27.252,889,600
1998-04-24$28.03$28.033,056,200
1998-04-23$28.59$28.593,249,600
1998-04-22$28.41$28.411,643,000
1998-04-21$28.53$28.532,096,600
1998-04-20$28.47$28.472,744,400
1998-04-17$27.88$27.871,678,400
1998-04-16$27.72$27.721,962,400
1998-04-15$28.06$28.062,070,200
1998-04-14$27.69$27.691,939,000
1998-04-13$27.84$27.844,902,800
1998-04-09$28.34$28.344,128,200
1998-04-08$27.34$27.346,530,200
1998-04-07$26.53$26.535,318,600
1998-04-06$25.69$25.693,225,200
1998-04-03$26.50$26.502,228,400
1998-04-02$26.81$26.813,175,000
1998-04-01$27.13$27.122,456,600
1998-03-31$26.69$26.693,316,800
1998-03-30$26.06$26.063,344,600
1998-03-27$26.63$26.622,608,400
1998-03-26$26.88$26.882,752,200
1998-03-25$27.31$27.312,978,400
1998-03-24$28.06$28.061,503,400
1998-03-23$27.78$27.784,132,600
1998-03-20$29.09$29.095,344,400
1998-03-19$28.28$28.283,840,800
1998-03-18$27.69$27.692,265,800
1998-03-17$27.97$27.973,311,600
1998-03-16$27.94$27.945,249,400
1998-03-13$27.41$27.413,319,600
1998-03-12$26.94$26.943,795,800
1998-03-11$27.44$27.443,683,800
1998-03-10$27.66$27.663,352,800
1998-03-09$27.19$27.194,770,400
1998-03-06$26.31$26.313,760,000
1998-03-05$25.44$25.443,186,200
1998-03-04$25.44$25.445,358,800
1998-03-03$24.75$24.751,486,000
1998-03-02$24.88$24.882,247,000
1998-02-27$24.44$24.445,778,400
1998-02-26$25.25$25.253,993,800
1998-02-25$24.88$24.884,810,200
1998-02-24$24.69$24.695,228,600
1998-02-23$24.44$24.445,521,600
1998-02-20$23.25$23.252,647,000
1998-02-19$22.88$22.881,593,800
1998-02-18$23.41$23.412,296,800
1998-02-17$22.88$22.881,721,200
1998-02-13$22.75$22.75927,800
1998-02-12$22.69$22.692,025,200
1998-02-11$22.38$22.372,092,400
1998-02-10$22.50$22.502,819,000
1998-02-09$22.34$22.342,657,000
1998-02-06$23.31$23.312,274,800
1998-02-05$22.75$22.754,180,800
1998-02-04$22.94$22.941,974,000
1998-02-03$22.34$22.341,204,200
1998-02-02$22.06$22.061,986,800
1998-01-30$21.69$21.691,617,000
1998-01-29$21.72$21.722,970,400
1998-01-28$21.63$21.622,538,200
1998-01-27$21.78$21.783,599,200
1998-01-26$21.06$21.063,044,400
1998-01-23$21.69$21.692,570,400
1998-01-22$22.31$22.311,418,000
1998-01-21$22.25$22.255,779,800
1998-01-20$22.75$22.752,417,200
1998-01-16$22.25$22.252,358,400
1998-01-15$21.50$21.501,270,600
1998-01-14$21.66$21.664,113,400
1998-01-13$21.78$21.782,474,200
1998-01-12$21.88$21.874,072,400
1998-01-09$21.75$21.754,340,600
1998-01-08$22.41$22.417,284,400
1998-01-07$21.72$21.722,829,600
1998-01-06$21.94$21.943,376,400
1998-01-05$22.44$22.442,167,600
1998-01-02$22.00$22.003,451,800