Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2008-12-04 | 50.970 | 53.350 | 50.510 | 52.750 | 36.745 | 9,864,688 |
| 2008-12-03 | 49.000 | 52.220 | 48.730 | 51.420 | 35.818 | 7,902,119 |
| 2008-12-02 | 48.500 | 50.200 | 47.760 | 50.100 | 34.899 | 6,143,911 |
| 2008-12-01 | 50.730 | 50.760 | 47.880 | 47.910 | 33.373 | 5,559,872 |
| 2008-11-28 | 51.350 | 51.680 | 50.660 | 51.470 | 35.853 | 1,560,169 |
| 2008-11-26 | 49.650 | 51.670 | 49.600 | 51.450 | 35.839 | 4,421,806 |
| 2008-11-25 | 50.170 | 51.680 | 49.460 | 50.670 | 35.296 | 7,454,509 |
| 2008-11-24 | 46.870 | 49.970 | 46.450 | 49.450 | 34.446 | 8,242,615 |
| 2008-11-21 | 45.220 | 46.910 | 43.880 | 46.710 | 32.538 | 10,862,830 |
| 2008-11-20 | 45.000 | 48.250 | 44.850 | 44.990 | 31.339 | 9,612,480 |
| 2008-11-19 | 46.720 | 47.640 | 45.130 | 45.270 | 31.534 | 6,165,628 |
| 2008-11-18 | 47.320 | 47.760 | 45.080 | 46.760 | 32.572 | 7,754,145 |
| 2008-11-17 | 47.340 | 48.990 | 47.250 | 47.310 | 32.955 | 5,252,330 |
| 2008-11-14 | 48.980 | 50.680 | 47.590 | 48.060 | 33.478 | 7,233,803 |
| 2008-11-13 | 48.640 | 49.980 | 45.290 | 49.970 | 34.808 | 11,220,320 |
| 2008-11-12 | 51.000 | 51.170 | 48.570 | 48.780 | 33.979 | 7,948,683 |
| 2008-11-11 | 52.250 | 53.270 | 50.880 | 52.280 | 36.308 | 5,035,585 |
| 2008-11-10 | 54.630 | 55.150 | 52.290 | 53.000 | 36.808 | 5,312,788 |
| 2008-11-07 | 53.870 | 54.410 | 52.890 | 54.070 | 37.551 | 4,063,819 |
| 2008-11-06 | 53.000 | 54.890 | 52.900 | 53.510 | 37.162 | 9,811,663 |
| 2008-11-05 | 54.870 | 55.540 | 53.570 | 53.710 | 37.301 | 5,565,315 |
| 2008-11-04 | 54.340 | 55.990 | 53.330 | 55.090 | 38.259 | 8,035,660 |
| 2008-11-03 | 56.530 | 56.830 | 52.780 | 53.470 | 37.134 | 8,809,597 |
| 2008-10-31 | 57.000 | 58.430 | 56.040 | 57.010 | 39.592 | 6,047,272 |
| 2008-10-30 | 57.990 | 58.520 | 55.890 | 56.970 | 39.565 | 6,785,888 |
| 2008-10-29 | 57.080 | 59.480 | 54.840 | 56.880 | 39.502 | 8,172,292 |
| 2008-10-28 | 53.946 | 57.860 | 52.290 | 57.480 | 39.919 | 9,123,846 |
| 2008-10-27 | 50.030 | 53.476 | 49.590 | 51.900 | 36.044 | 7,448,336 |
| 2008-10-24 | 48.810 | 52.060 | 48.660 | 50.930 | 35.370 | 5,104,052 |
| 2008-10-23 | 53.420 | 53.680 | 49.680 | 52.210 | 36.259 | 8,923,806 |
| 2008-10-22 | 54.825 | 55.180 | 52.090 | 53.550 | 37.190 | 6,863,602 |
| 2008-10-21 | 57.040 | 58.590 | 55.570 | 55.860 | 38.794 | 7,081,329 |
| 2008-10-20 | 59.310 | 59.310 | 56.000 | 58.080 | 40.336 | 6,356,613 |
| 2008-10-17 | 56.760 | 59.940 | 52.770 | 57.980 | 40.266 | 8,423,346 |
| 2008-10-16 | 54.030 | 58.140 | 52.450 | 57.790 | 40.134 | 10,619,080 |
| 2008-10-15 | 57.230 | 57.900 | 53.000 | 53.610 | 37.231 | 7,663,252 |
| 2008-10-14 | 61.090 | 61.520 | 57.110 | 58.410 | 40.565 | 7,996,760 |
| 2008-10-13 | 56.100 | 59.690 | 55.750 | 59.520 | 41.336 | 8,434,207 |
| 2008-10-10 | 53.130 | 55.990 | 51.000 | 53.900 | 37.433 | 12,410,300 |
| 2008-10-09 | 57.410 | 58.010 | 52.700 | 54.400 | 37.780 | 7,837,598 |
| 2008-10-08 | 54.000 | 58.800 | 53.350 | 57.060 | 39.627 | 13,645,690 |
| 2008-10-07 | 60.450 | 61.420 | 57.050 | 57.800 | 40.141 | 9,820,560 |
| 2008-10-06 | 60.720 | 62.000 | 57.110 | 60.470 | 41.995 | 9,509,357 |
| 2008-10-03 | 63.690 | 65.120 | 62.290 | 62.600 | 43.475 | 7,769,098 |
| 2008-10-02 | 64.310 | 64.440 | 61.330 | 61.920 | 43.002 | 6,284,735 |
| 2008-10-01 | 64.000 | 65.000 | 63.640 | 64.690 | 44.926 | 3,860,122 |
| 2008-09-30 | 63.660 | 65.370 | 63.000 | 64.930 | 45.093 | 5,083,359 |
| 2008-09-29 | 65.950 | 66.500 | 62.000 | 63.200 | 43.891 | 7,244,117 |
| 2008-09-26 | 64.520 | 66.320 | 64.520 | 66.290 | 46.037 | 4,508,025 |
| 2008-09-25 | 64.890 | 66.670 | 64.760 | 65.980 | 45.822 | 5,293,592 |
| 2008-09-24 | 64.080 | 65.230 | 63.360 | 64.790 | 44.996 | 3,557,375 |
| 2008-09-23 | 64.620 | 65.480 | 64.020 | 64.160 | 44.558 | 4,407,581 |
| 2008-09-22 | 66.550 | 66.570 | 64.250 | 64.320 | 44.669 | 6,314,620 |
| 2008-09-19 | 71.000 | 71.000 | 66.090 | 66.090 | 45.898 | 10,335,760 |
| 2008-09-18 | 65.750 | 70.160 | 64.650 | 68.230 | 47.385 | 11,588,550 |
| 2008-09-17 | 67.950 | 68.300 | 65.340 | 65.370 | 45.398 | 11,423,260 |
| 2008-09-16 | 67.900 | 69.860 | 67.850 | 68.880 | 47.836 | 10,797,590 |
| 2008-09-15 | 68.660 | 70.000 | 68.170 | 68.950 | 47.885 | 6,569,342 |
| 2008-09-12 | 70.140 | 70.140 | 68.810 | 69.550 | 48.301 | 5,410,755 |
| 2008-09-11 | 68.920 | 70.420 | 68.420 | 70.370 | 48.871 | 6,455,258 |
Stock splits
| Date | Split (new : old) |
|---|
| 2000-01-14 | 2:1 |
| 1993-10-22 | 2:1 |
Dividends
| Ex-date | Amount |
|---|
| 2026-07-24 | 1.4700 USD |
| 2026-05-01 | 1.4700 USD |
| 2026-01-30 | 1.3000 USD |
| 2025-10-31 | 1.3000 USD |
| 2025-08-01 | 1.3000 USD |
| 2025-05-02 | 1.3000 USD |
| 2025-02-07 | 1.1600 USD |
| 2024-11-01 | 1.1600 USD |
| 2024-07-26 | 1.1600 USD |
| 2024-04-25 | 1.1600 USD |
| 2024-02-01 | 1.0200 USD |
| 2023-12-27 | 15.0000 USD |
| 2023-11-02 | 1.0200 USD |
| 2023-08-24 | 1.0200 USD |
| 2023-05-04 | 1.0200 USD |
| 2023-02-02 | 0.9000 USD |
| 2022-10-27 | 0.9000 USD |
| 2022-07-28 | 0.9000 USD |
| 2022-04-28 | 0.9000 USD |
| 2022-02-03 | 0.7900 USD |
| 2021-10-28 | 0.7900 USD |
| 2021-07-29 | 0.7900 USD |
| 2021-04-29 | 0.7900 USD |
| 2021-02-04 | 0.7000 USD |
| 2020-12-01 | 10.0000 USD |
| 2020-10-29 | 0.7000 USD |
| 2020-07-30 | 0.7000 USD |
| 2020-04-30 | 0.7000 USD |
| 2020-02-06 | 0.6500 USD |
| 2019-10-31 | 0.6500 USD |
| 2019-08-29 | 0.6500 USD |
| 2019-05-09 | 0.6500 USD |
| 2019-02-07 | 0.5700 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.