Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2008-06-16 | 69.840 | 71.080 | 69.390 | 70.420 | 48.784 | 3,972,614 |
| 2008-06-13 | 68.600 | 70.340 | 68.500 | 70.320 | 48.715 | 6,889,186 |
| 2008-06-12 | 69.360 | 69.920 | 67.135 | 68.200 | 47.246 | 8,404,329 |
| 2008-06-11 | 70.220 | 70.480 | 68.750 | 68.870 | 47.711 | 5,865,055 |
| 2008-06-10 | 70.880 | 71.020 | 69.780 | 70.460 | 48.812 | 6,617,283 |
| 2008-06-09 | 71.220 | 72.470 | 70.910 | 71.330 | 49.415 | 5,510,411 |
| 2008-06-06 | 72.950 | 72.950 | 71.000 | 71.190 | 49.318 | 6,308,397 |
| 2008-06-05 | 71.530 | 73.570 | 71.480 | 73.500 | 50.918 | 6,103,358 |
| 2008-06-04 | 69.710 | 71.030 | 69.270 | 70.810 | 49.055 | 4,615,785 |
| 2008-06-03 | 70.440 | 71.070 | 69.660 | 70.040 | 48.521 | 5,971,048 |
| 2008-06-02 | 71.450 | 71.460 | 69.830 | 70.330 | 48.722 | 7,115,287 |
| 2008-05-30 | 72.500 | 72.970 | 70.980 | 71.320 | 49.408 | 5,908,878 |
| 2008-05-29 | 73.830 | 74.750 | 70.670 | 72.980 | 50.558 | 8,817,517 |
| 2008-05-28 | 73.060 | 74.410 | 72.720 | 73.240 | 50.738 | 6,563,598 |
| 2008-05-27 | 71.530 | 73.240 | 71.360 | 72.590 | 50.288 | 6,240,046 |
| 2008-05-23 | 70.520 | 71.650 | 69.540 | 71.320 | 49.408 | 6,182,007 |
| 2008-05-22 | 69.430 | 71.010 | 69.300 | 70.760 | 49.020 | 6,521,069 |
| 2008-05-21 | 71.890 | 71.960 | 68.900 | 69.390 | 48.071 | 6,635,294 |
| 2008-05-20 | 71.930 | 72.100 | 71.000 | 71.390 | 49.456 | 3,740,447 |
| 2008-05-19 | 73.410 | 73.750 | 71.870 | 72.110 | 49.955 | 3,963,387 |
| 2008-05-16 | 74.360 | 74.360 | 72.200 | 73.270 | 50.759 | 5,690,227 |
| 2008-05-15 | 74.150 | 74.470 | 73.560 | 74.450 | 51.576 | 3,612,446 |
| 2008-05-14 | 74.470 | 75.230 | 73.980 | 74.220 | 51.417 | 4,170,946 |
| 2008-05-13 | 73.990 | 74.080 | 72.820 | 73.980 | 51.140 | 3,767,906 |
| 2008-05-12 | 71.690 | 73.910 | 71.530 | 73.680 | 50.932 | 3,528,870 |
| 2008-05-09 | 70.650 | 71.960 | 70.500 | 71.440 | 49.384 | 2,782,494 |
| 2008-05-08 | 72.400 | 72.400 | 70.900 | 71.200 | 49.218 | 4,701,009 |
| 2008-05-07 | 72.830 | 74.080 | 71.920 | 72.080 | 49.826 | 3,671,770 |
| 2008-05-06 | 71.900 | 72.960 | 71.500 | 72.650 | 50.220 | 3,538,455 |
| 2008-05-05 | 72.270 | 72.900 | 71.860 | 72.430 | 50.068 | 3,415,657 |
| 2008-05-02 | 72.500 | 72.800 | 70.980 | 72.140 | 49.868 | 4,448,764 |
| 2008-05-01 | 70.780 | 72.930 | 70.250 | 72.000 | 49.771 | 4,656,656 |
| 2008-04-30 | 70.990 | 72.240 | 70.410 | 71.250 | 49.253 | 5,120,092 |
| 2008-04-29 | 70.660 | 71.410 | 70.270 | 71.000 | 49.080 | 3,183,051 |
| 2008-04-28 | 71.210 | 71.670 | 70.690 | 70.830 | 48.962 | 3,576,057 |
| 2008-04-25 | 70.380 | 71.690 | 70.000 | 71.540 | 49.453 | 4,626,787 |
| 2008-04-24 | 69.250 | 70.840 | 68.910 | 70.220 | 48.541 | 5,546,762 |
| 2008-04-23 | 68.220 | 69.830 | 67.770 | 69.600 | 48.112 | 4,142,807 |
| 2008-04-22 | 68.650 | 69.200 | 67.360 | 68.080 | 47.061 | 3,396,414 |
| 2008-04-21 | 69.030 | 69.370 | 68.250 | 69.110 | 47.773 | 2,802,067 |
| 2008-04-18 | 69.200 | 69.880 | 68.950 | 69.430 | 47.995 | 4,980,969 |
| 2008-04-17 | 67.430 | 68.590 | 67.140 | 68.490 | 47.345 | 4,911,118 |
| 2008-04-16 | 65.850 | 67.420 | 65.520 | 67.240 | 46.481 | 4,910,038 |
| 2008-04-15 | 65.360 | 65.870 | 64.970 | 65.720 | 45.430 | 2,661,306 |
| 2008-04-14 | 65.850 | 65.990 | 65.090 | 65.320 | 45.153 | 2,593,586 |
| 2008-04-11 | 66.470 | 66.500 | 65.510 | 65.700 | 45.416 | 4,058,403 |
| 2008-04-10 | 66.170 | 67.280 | 65.930 | 66.520 | 45.983 | 4,891,426 |
| 2008-04-09 | 67.020 | 67.400 | 65.400 | 66.030 | 45.644 | 2,997,865 |
| 2008-04-08 | 65.970 | 67.130 | 65.970 | 66.930 | 46.266 | 3,068,289 |
| 2008-04-07 | 66.500 | 67.140 | 65.920 | 66.300 | 45.831 | 2,925,118 |
| 2008-04-04 | 66.440 | 66.970 | 66.200 | 66.450 | 45.935 | 3,686,237 |
| 2008-04-03 | 66.130 | 67.050 | 66.020 | 66.870 | 46.225 | 3,128,467 |
| 2008-04-02 | 65.940 | 66.930 | 65.740 | 66.250 | 45.796 | 3,978,324 |
| 2008-04-01 | 65.180 | 66.870 | 65.110 | 66.490 | 45.962 | 5,742,519 |
| 2008-03-31 | 64.920 | 65.390 | 63.740 | 64.970 | 44.911 | 4,125,874 |
| 2008-03-28 | 64.980 | 65.060 | 64.260 | 64.370 | 44.497 | 3,114,934 |
| 2008-03-27 | 67.100 | 67.950 | 65.170 | 65.260 | 45.112 | 5,261,417 |
| 2008-03-26 | 66.500 | 66.930 | 65.860 | 66.620 | 46.052 | 5,654,578 |
| 2008-03-25 | 65.890 | 67.120 | 65.200 | 66.590 | 46.031 | 7,617,883 |
| 2008-03-24 | 63.480 | 65.620 | 63.480 | 65.500 | 45.278 | 6,395,892 |
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.