Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2010-08-05 | 56.740 | 56.740 | 55.860 | 56.460 | 40.299 | 4,358,225 |
| 2010-08-04 | 56.490 | 57.610 | 56.240 | 57.400 | 40.970 | 4,364,514 |
| 2010-08-03 | 56.620 | 56.910 | 56.380 | 56.550 | 40.217 | 3,246,732 |
| 2010-08-02 | 57.060 | 57.340 | 56.760 | 56.840 | 40.423 | 3,628,604 |
| 2010-07-30 | 55.710 | 56.890 | 55.710 | 56.710 | 40.331 | 2,973,891 |
| 2010-07-29 | 56.740 | 57.000 | 55.770 | 56.210 | 39.975 | 3,439,741 |
| 2010-07-28 | 57.220 | 57.400 | 56.410 | 56.510 | 40.188 | 3,077,786 |
| 2010-07-27 | 56.490 | 57.355 | 56.390 | 57.210 | 40.686 | 6,929,982 |
| 2010-07-26 | 55.790 | 56.000 | 55.450 | 55.710 | 39.619 | 3,494,403 |
| 2010-07-23 | 55.000 | 56.000 | 54.780 | 55.950 | 39.790 | 4,905,376 |
| 2010-07-22 | 54.090 | 55.080 | 53.840 | 54.900 | 39.043 | 5,284,337 |
| 2010-07-21 | 55.070 | 55.100 | 53.485 | 53.610 | 38.126 | 4,977,260 |
| 2010-07-20 | 54.370 | 55.090 | 54.110 | 55.090 | 39.178 | 6,343,439 |
| 2010-07-19 | 55.130 | 55.290 | 54.600 | 54.820 | 38.986 | 3,574,961 |
| 2010-07-16 | 56.590 | 56.600 | 54.950 | 54.980 | 39.100 | 5,020,200 |
| 2010-07-15 | 56.370 | 56.590 | 55.850 | 56.550 | 40.217 | 2,949,583 |
| 2010-07-14 | 56.390 | 56.400 | 55.870 | 56.350 | 40.075 | 3,428,190 |
| 2010-07-13 | 56.150 | 56.750 | 56.150 | 56.510 | 40.188 | 3,207,247 |
| 2010-07-12 | 56.050 | 56.430 | 55.730 | 55.930 | 39.776 | 2,644,587 |
| 2010-07-09 | 56.290 | 56.290 | 55.600 | 56.190 | 39.961 | 3,895,781 |
| 2010-07-08 | 54.780 | 55.790 | 54.520 | 55.710 | 39.619 | 7,592,664 |
| 2010-07-07 | 53.760 | 54.330 | 53.410 | 54.290 | 38.610 | 4,813,393 |
| 2010-07-06 | 54.690 | 54.710 | 53.510 | 54.000 | 38.403 | 3,364,625 |
| 2010-07-02 | 55.180 | 55.180 | 53.760 | 54.230 | 38.567 | 3,385,178 |
| 2010-07-01 | 54.730 | 55.160 | 54.225 | 54.900 | 39.043 | 5,376,738 |
| 2010-06-30 | 55.520 | 55.670 | 54.690 | 54.830 | 38.994 | 4,609,875 |
| 2010-06-29 | 56.180 | 56.370 | 55.390 | 55.630 | 39.563 | 4,298,397 |
| 2010-06-28 | 56.590 | 57.200 | 56.220 | 56.650 | 40.288 | 3,043,581 |
| 2010-06-25 | 56.170 | 56.860 | 55.870 | 56.440 | 40.139 | 4,488,863 |
| 2010-06-24 | 57.170 | 57.450 | 56.000 | 56.220 | 39.982 | 3,772,512 |
| 2010-06-23 | 57.590 | 57.680 | 57.015 | 57.440 | 40.850 | 2,541,173 |
| 2010-06-22 | 57.990 | 58.310 | 57.540 | 57.610 | 40.971 | 2,716,393 |
| 2010-06-21 | 58.500 | 58.700 | 57.550 | 57.780 | 41.092 | 2,795,564 |
| 2010-06-18 | 58.500 | 58.730 | 58.050 | 58.210 | 41.397 | 3,657,292 |
| 2010-06-17 | 58.590 | 58.720 | 57.990 | 58.580 | 41.660 | 2,828,946 |
| 2010-06-16 | 58.470 | 58.890 | 58.120 | 58.340 | 41.490 | 2,876,888 |
| 2010-06-15 | 57.930 | 59.180 | 57.920 | 59.160 | 42.073 | 5,100,112 |
| 2010-06-14 | 57.640 | 57.900 | 57.300 | 57.520 | 40.907 | 2,510,744 |
| 2010-06-11 | 57.180 | 57.650 | 57.000 | 57.520 | 40.907 | 3,092,943 |
| 2010-06-10 | 57.820 | 58.060 | 57.300 | 57.650 | 40.999 | 3,277,163 |
| 2010-06-09 | 56.680 | 57.750 | 56.580 | 57.400 | 40.821 | 4,926,887 |
| 2010-06-08 | 55.690 | 56.720 | 55.550 | 56.660 | 40.295 | 3,726,552 |
| 2010-06-07 | 56.010 | 56.620 | 55.760 | 55.850 | 39.719 | 3,414,961 |
| 2010-06-04 | 57.450 | 57.450 | 56.010 | 56.173 | 39.948 | 5,498,959 |
| 2010-06-03 | 58.230 | 59.160 | 57.300 | 57.930 | 41.198 | 7,220,493 |
| 2010-06-02 | 58.340 | 58.980 | 57.950 | 58.950 | 41.924 | 3,898,883 |
| 2010-06-01 | 58.180 | 58.850 | 57.730 | 57.980 | 41.234 | 3,205,682 |
| 2010-05-28 | 58.790 | 58.920 | 58.020 | 58.250 | 41.426 | 3,501,021 |
| 2010-05-27 | 57.340 | 59.260 | 57.040 | 58.740 | 41.774 | 8,764,497 |
| 2010-05-26 | 56.600 | 56.700 | 55.710 | 55.980 | 39.811 | 6,147,386 |
| 2010-05-25 | 55.960 | 56.500 | 55.391 | 56.500 | 40.181 | 6,121,301 |
| 2010-05-24 | 57.180 | 57.410 | 56.680 | 56.760 | 40.366 | 3,376,789 |
| 2010-05-21 | 55.930 | 57.730 | 55.790 | 57.440 | 40.850 | 5,966,020 |
| 2010-05-20 | 57.000 | 57.520 | 56.550 | 56.590 | 40.245 | 6,756,966 |
| 2010-05-19 | 57.490 | 58.480 | 57.490 | 57.770 | 41.084 | 4,350,250 |
| 2010-05-18 | 58.640 | 58.990 | 57.680 | 57.780 | 41.092 | 4,308,787 |
| 2010-05-17 | 57.820 | 58.440 | 57.525 | 58.350 | 41.497 | 4,130,191 |
| 2010-05-14 | 57.265 | 58.120 | 57.210 | 57.740 | 41.063 | 4,890,494 |
| 2010-05-13 | 57.810 | 58.485 | 57.600 | 57.670 | 41.013 | 5,007,754 |
| 2010-05-12 | 58.060 | 58.190 | 57.660 | 57.880 | 41.163 | 4,151,915 |
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.