Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2012-06-29 | 93.510 | 95.110 | 93.430 | 95.000 | 69.251 | 3,437,955 |
| 2012-06-28 | 90.830 | 93.000 | 89.911 | 92.920 | 67.734 | 4,409,092 |
| 2012-06-27 | 91.980 | 92.210 | 91.000 | 91.320 | 66.568 | 2,087,515 |
| 2012-06-26 | 91.150 | 91.790 | 90.700 | 91.690 | 66.838 | 2,600,076 |
| 2012-06-25 | 90.750 | 91.255 | 90.390 | 90.870 | 66.240 | 1,592,571 |
| 2012-06-22 | 90.790 | 91.290 | 90.420 | 90.930 | 66.284 | 1,540,122 |
| 2012-06-21 | 91.500 | 92.350 | 90.280 | 90.400 | 65.897 | 2,631,671 |
| 2012-06-20 | 91.680 | 91.930 | 90.870 | 91.490 | 66.692 | 1,929,812 |
| 2012-06-19 | 91.930 | 92.670 | 91.440 | 91.860 | 66.962 | 1,821,392 |
| 2012-06-18 | 91.370 | 92.090 | 91.010 | 92.030 | 67.086 | 1,570,851 |
| 2012-06-15 | 90.350 | 91.640 | 90.090 | 91.440 | 66.655 | 3,912,901 |
| 2012-06-14 | 87.850 | 90.080 | 87.810 | 89.830 | 65.482 | 3,117,394 |
| 2012-06-13 | 88.110 | 88.410 | 87.250 | 87.430 | 63.732 | 1,405,831 |
| 2012-06-12 | 88.240 | 88.560 | 87.580 | 88.500 | 64.512 | 1,823,536 |
| 2012-06-11 | 89.060 | 89.150 | 87.840 | 87.910 | 64.082 | 1,569,472 |
| 2012-06-08 | 88.010 | 89.200 | 87.700 | 88.740 | 64.687 | 1,889,154 |
| 2012-06-07 | 88.050 | 88.700 | 87.950 | 88.130 | 64.243 | 1,909,632 |
| 2012-06-06 | 86.990 | 87.830 | 86.880 | 87.780 | 63.988 | 2,187,023 |
| 2012-06-05 | 86.290 | 86.960 | 85.740 | 86.770 | 63.251 | 2,143,718 |
| 2012-06-04 | 85.440 | 86.600 | 85.370 | 86.560 | 63.098 | 2,404,376 |
| 2012-06-01 | 86.000 | 86.160 | 85.170 | 85.490 | 62.318 | 3,096,108 |
| 2012-05-31 | 85.590 | 87.050 | 85.580 | 86.390 | 62.974 | 3,564,660 |
| 2012-05-30 | 85.900 | 86.430 | 85.770 | 85.810 | 62.551 | 3,112,084 |
| 2012-05-29 | 85.110 | 86.680 | 85.080 | 86.640 | 63.157 | 3,151,324 |
| 2012-05-25 | 84.900 | 85.070 | 84.000 | 84.480 | 61.582 | 2,379,533 |
| 2012-05-24 | 84.250 | 85.270 | 83.480 | 84.480 | 61.582 | 3,558,204 |
| 2012-05-23 | 82.980 | 83.360 | 82.260 | 83.310 | 60.729 | 2,915,812 |
| 2012-05-22 | 83.470 | 84.260 | 83.010 | 83.380 | 60.580 | 2,244,880 |
| 2012-05-21 | 83.190 | 83.880 | 82.750 | 83.730 | 60.834 | 1,598,775 |
| 2012-05-18 | 83.700 | 84.190 | 82.660 | 82.940 | 60.260 | 3,152,636 |
| 2012-05-17 | 84.860 | 85.210 | 83.470 | 83.470 | 60.645 | 2,022,488 |
| 2012-05-16 | 84.880 | 85.260 | 84.570 | 84.910 | 61.691 | 2,149,512 |
| 2012-05-15 | 84.100 | 85.140 | 84.080 | 84.580 | 61.452 | 2,165,157 |
| 2012-05-14 | 84.260 | 84.720 | 83.760 | 84.300 | 61.248 | 1,656,597 |
| 2012-05-11 | 83.840 | 85.050 | 83.700 | 84.600 | 61.466 | 2,864,082 |
| 2012-05-10 | 83.400 | 84.360 | 83.110 | 83.880 | 60.943 | 2,600,349 |
| 2012-05-09 | 82.220 | 83.100 | 82.100 | 82.620 | 60.027 | 2,415,977 |
| 2012-05-08 | 83.020 | 83.320 | 81.980 | 82.640 | 60.042 | 2,609,621 |
| 2012-05-07 | 83.380 | 83.740 | 83.000 | 83.150 | 60.413 | 2,042,884 |
| 2012-05-04 | 84.210 | 84.430 | 83.320 | 83.390 | 60.587 | 2,796,816 |
| 2012-05-03 | 85.860 | 85.940 | 83.940 | 84.240 | 61.205 | 4,696,644 |
| 2012-05-02 | 86.890 | 86.950 | 86.240 | 86.640 | 62.948 | 2,432,707 |
| 2012-05-01 | 86.910 | 88.000 | 86.380 | 86.970 | 63.188 | 2,970,572 |
| 2012-04-30 | 88.700 | 89.000 | 88.130 | 88.180 | 64.067 | 1,790,638 |
| 2012-04-27 | 88.390 | 89.220 | 88.140 | 88.690 | 64.438 | 1,597,440 |
| 2012-04-26 | 87.260 | 88.460 | 87.000 | 88.080 | 63.994 | 2,447,500 |
| 2012-04-25 | 86.770 | 87.450 | 86.520 | 87.280 | 63.413 | 2,301,822 |
| 2012-04-24 | 86.810 | 87.200 | 86.220 | 86.430 | 62.796 | 1,796,969 |
| 2012-04-23 | 87.220 | 87.300 | 86.390 | 86.620 | 62.934 | 1,712,482 |
| 2012-04-20 | 87.380 | 88.070 | 87.260 | 87.580 | 63.631 | 2,203,636 |
| 2012-04-19 | 87.940 | 87.940 | 86.690 | 87.120 | 63.297 | 1,762,740 |
| 2012-04-18 | 87.300 | 88.490 | 87.190 | 88.070 | 63.987 | 1,620,279 |
| 2012-04-17 | 87.170 | 87.860 | 87.140 | 87.670 | 63.697 | 1,732,842 |
| 2012-04-16 | 86.660 | 87.120 | 86.300 | 86.880 | 63.123 | 1,956,608 |
| 2012-04-13 | 86.910 | 87.140 | 86.030 | 86.320 | 62.716 | 2,738,352 |
| 2012-04-12 | 87.510 | 87.561 | 86.950 | 87.180 | 63.341 | 2,509,831 |
| 2012-04-11 | 87.500 | 87.590 | 87.056 | 87.320 | 63.442 | 1,912,560 |
| 2012-04-10 | 87.540 | 87.590 | 86.370 | 86.890 | 63.130 | 2,812,042 |
| 2012-04-09 | 87.680 | 88.140 | 87.030 | 87.880 | 63.849 | 1,817,662 |
| 2012-04-05 | 87.410 | 88.870 | 87.400 | 88.650 | 64.409 | 2,752,580 |
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.