Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2012-12-21 | 98.430 | 99.550 | 97.645 | 99.490 | 78.102 | 4,167,884 |
| 2012-12-20 | 99.220 | 99.430 | 98.145 | 99.200 | 77.875 | 1,970,506 |
| 2012-12-19 | 99.490 | 100.22 | 98.640 | 98.680 | 77.466 | 3,153,223 |
| 2012-12-18 | 98.900 | 99.960 | 98.640 | 99.857 | 78.390 | 2,900,524 |
| 2012-12-17 | 97.010 | 98.900 | 97.000 | 98.780 | 77.545 | 2,848,583 |
| 2012-12-14 | 97.000 | 97.960 | 96.850 | 96.917 | 76.083 | 2,160,778 |
| 2012-12-13 | 98.050 | 98.870 | 97.340 | 97.849 | 76.814 | 2,715,072 |
| 2012-12-12 | 99.020 | 99.390 | 97.250 | 97.720 | 76.713 | 5,390,537 |
| 2012-12-11 | 99.000 | 99.650 | 98.070 | 98.310 | 77.176 | 4,024,436 |
| 2012-12-10 | 98.900 | 99.270 | 98.550 | 98.950 | 77.678 | 2,317,643 |
| 2012-12-07 | 98.880 | 99.010 | 98.170 | 98.560 | 77.372 | 3,094,249 |
| 2012-12-06 | 98.440 | 99.630 | 98.080 | 98.470 | 77.301 | 5,059,742 |
| 2012-12-05 | 104.56 | 105.97 | 104.30 | 105.95 | 77.677 | 8,476,608 |
| 2012-12-04 | 104.55 | 104.92 | 104.02 | 104.40 | 76.542 | 3,851,032 |
| 2012-12-03 | 104.82 | 104.82 | 103.90 | 104.59 | 76.681 | 4,269,828 |
| 2012-11-30 | 102.48 | 104.50 | 101.66 | 103.92 | 76.190 | 4,951,383 |
| 2012-11-29 | 103.08 | 103.21 | 101.56 | 101.88 | 74.694 | 6,360,492 |
| 2012-11-28 | 100.44 | 102.62 | 100.00 | 102.58 | 75.207 | 10,411,450 |
| 2012-11-27 | 96.300 | 97.330 | 95.770 | 96.510 | 70.757 | 2,428,200 |
| 2012-11-26 | 97.360 | 97.530 | 95.830 | 96.260 | 70.574 | 1,531,125 |
| 2012-11-23 | 97.000 | 97.930 | 96.560 | 97.920 | 71.791 | 671,827 |
| 2012-11-21 | 97.220 | 97.400 | 96.470 | 96.740 | 70.926 | 1,045,404 |
| 2012-11-20 | 96.790 | 97.120 | 96.200 | 97.120 | 71.204 | 1,783,202 |
| 2012-11-19 | 96.680 | 96.830 | 95.370 | 96.570 | 70.801 | 2,877,424 |
| 2012-11-16 | 95.520 | 96.230 | 94.640 | 95.690 | 70.156 | 3,105,307 |
| 2012-11-15 | 94.000 | 95.880 | 93.510 | 95.700 | 70.163 | 2,445,454 |
| 2012-11-14 | 95.600 | 95.970 | 94.160 | 94.470 | 69.262 | 3,587,552 |
| 2012-11-13 | 95.460 | 96.630 | 95.250 | 95.690 | 69.954 | 2,328,337 |
| 2012-11-12 | 95.420 | 96.160 | 95.090 | 95.980 | 70.166 | 1,632,732 |
| 2012-11-09 | 94.510 | 96.200 | 94.433 | 95.460 | 69.786 | 2,542,778 |
| 2012-11-08 | 96.960 | 97.440 | 94.740 | 94.740 | 69.260 | 2,905,953 |
| 2012-11-07 | 97.930 | 98.120 | 96.060 | 97.300 | 71.131 | 2,620,023 |
| 2012-11-06 | 97.980 | 99.600 | 97.920 | 98.790 | 72.221 | 2,410,587 |
| 2012-11-05 | 95.760 | 97.800 | 95.450 | 97.730 | 71.446 | 2,199,422 |
| 2012-11-02 | 97.850 | 98.120 | 96.040 | 96.120 | 70.269 | 2,025,462 |
| 2012-11-01 | 98.590 | 98.800 | 97.130 | 97.131 | 71.008 | 2,941,192 |
| 2012-10-31 | 97.890 | 98.780 | 97.400 | 98.430 | 71.957 | 3,534,271 |
| 2012-10-26 | 96.420 | 97.520 | 96.120 | 96.940 | 70.868 | 2,998,814 |
| 2012-10-25 | 96.000 | 96.630 | 95.770 | 96.620 | 70.634 | 2,734,718 |
| 2012-10-24 | 95.040 | 96.250 | 94.500 | 95.620 | 69.903 | 4,327,777 |
| 2012-10-23 | 94.470 | 95.809 | 93.840 | 95.180 | 69.582 | 3,357,359 |
| 2012-10-22 | 94.680 | 95.320 | 94.130 | 95.000 | 69.450 | 3,097,676 |
| 2012-10-19 | 96.100 | 96.230 | 94.460 | 94.780 | 69.289 | 3,859,879 |
| 2012-10-18 | 96.870 | 97.360 | 96.250 | 96.330 | 70.422 | 2,804,263 |
| 2012-10-17 | 97.150 | 97.360 | 95.780 | 96.780 | 70.751 | 4,113,622 |
| 2012-10-16 | 96.970 | 97.520 | 96.510 | 97.003 | 70.914 | 3,788,477 |
| 2012-10-15 | 98.070 | 98.130 | 96.440 | 96.510 | 70.554 | 4,005,283 |
| 2012-10-12 | 98.060 | 98.480 | 96.180 | 97.550 | 71.314 | 7,552,428 |
| 2012-10-11 | 101.83 | 102.00 | 98.300 | 98.325 | 71.881 | 4,755,393 |
| 2012-10-10 | 102.40 | 104.43 | 101.30 | 101.56 | 74.244 | 5,740,119 |
| 2012-10-09 | 101.35 | 101.77 | 99.560 | 99.640 | 72.842 | 1,607,219 |
| 2012-10-08 | 101.59 | 101.77 | 101.06 | 101.35 | 74.092 | 813,072 |
| 2012-10-05 | 101.80 | 102.40 | 101.54 | 101.79 | 74.414 | 1,192,599 |
| 2012-10-04 | 100.00 | 101.69 | 99.960 | 101.48 | 74.187 | 2,051,791 |
| 2012-10-03 | 99.250 | 99.955 | 98.750 | 99.620 | 72.827 | 2,787,843 |
| 2012-10-02 | 100.86 | 101.37 | 99.330 | 99.490 | 72.732 | 2,053,243 |
| 2012-10-01 | 100.63 | 101.87 | 100.29 | 100.51 | 73.478 | 1,873,565 |
| 2012-09-28 | 100.22 | 100.46 | 99.750 | 100.16 | 73.222 | 1,788,649 |
| 2012-09-27 | 101.06 | 101.70 | 100.13 | 100.30 | 73.324 | 1,821,033 |
| 2012-09-26 | 101.86 | 102.77 | 100.96 | 101.00 | 73.836 | 1,635,119 |
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.