Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2011-04-21 | 78.650 | 78.960 | 78.050 | 78.870 | 56.631 | 1,791,170 |
| 2011-04-20 | 77.510 | 78.670 | 77.400 | 78.560 | 56.409 | 2,478,184 |
| 2011-04-19 | 77.080 | 77.150 | 76.460 | 76.710 | 55.080 | 1,794,465 |
| 2011-04-18 | 76.000 | 77.060 | 76.000 | 76.900 | 55.217 | 1,641,420 |
| 2011-04-15 | 76.340 | 77.030 | 76.240 | 76.970 | 55.267 | 2,136,976 |
| 2011-04-14 | 75.960 | 76.470 | 75.660 | 76.340 | 54.815 | 1,590,629 |
| 2011-04-13 | 76.740 | 76.740 | 75.960 | 76.410 | 54.865 | 1,286,845 |
| 2011-04-12 | 75.750 | 76.840 | 75.740 | 76.450 | 54.894 | 2,107,990 |
| 2011-04-11 | 76.160 | 76.620 | 75.670 | 76.200 | 54.714 | 2,423,871 |
| 2011-04-08 | 77.170 | 77.290 | 76.210 | 76.410 | 54.865 | 2,933,370 |
| 2011-04-07 | 76.370 | 78.460 | 76.335 | 77.820 | 55.877 | 5,923,445 |
| 2011-04-06 | 75.310 | 75.940 | 74.750 | 74.990 | 53.845 | 1,980,611 |
| 2011-04-05 | 74.350 | 75.820 | 74.350 | 74.930 | 53.802 | 3,386,264 |
| 2011-04-04 | 74.620 | 74.880 | 73.940 | 74.170 | 53.256 | 1,287,008 |
| 2011-04-01 | 73.160 | 74.330 | 73.140 | 74.250 | 53.314 | 2,474,537 |
| 2011-03-31 | 72.560 | 73.460 | 72.081 | 73.320 | 52.646 | 2,323,474 |
| 2011-03-30 | 72.270 | 72.980 | 72.270 | 72.810 | 52.280 | 1,769,615 |
| 2011-03-29 | 71.240 | 71.950 | 70.780 | 71.900 | 51.627 | 1,334,561 |
| 2011-03-28 | 71.490 | 71.810 | 70.990 | 71.260 | 51.167 | 1,328,116 |
| 2011-03-25 | 72.240 | 72.370 | 71.410 | 71.460 | 51.311 | 2,122,033 |
| 2011-03-24 | 71.190 | 72.330 | 71.100 | 72.110 | 51.777 | 2,118,650 |
| 2011-03-23 | 71.490 | 71.540 | 70.400 | 70.920 | 50.923 | 2,494,803 |
| 2011-03-22 | 71.060 | 71.890 | 70.920 | 71.550 | 51.375 | 1,929,258 |
| 2011-03-21 | 71.110 | 71.190 | 70.370 | 71.040 | 51.009 | 2,553,194 |
| 2011-03-18 | 71.030 | 71.230 | 70.150 | 70.660 | 50.736 | 4,766,744 |
| 2011-03-17 | 70.460 | 70.990 | 70.080 | 70.460 | 50.593 | 2,347,102 |
| 2011-03-16 | 71.140 | 71.190 | 69.540 | 69.760 | 50.090 | 3,980,176 |
| 2011-03-15 | 70.760 | 71.970 | 70.660 | 71.560 | 51.382 | 2,543,248 |
| 2011-03-14 | 72.250 | 72.470 | 71.540 | 71.840 | 51.583 | 2,196,318 |
| 2011-03-11 | 73.090 | 73.620 | 72.540 | 72.550 | 52.093 | 2,068,538 |
| 2011-03-10 | 73.510 | 74.175 | 73.120 | 73.380 | 52.689 | 2,372,211 |
| 2011-03-09 | 73.480 | 74.250 | 73.080 | 74.160 | 53.249 | 1,926,353 |
| 2011-03-08 | 72.090 | 74.060 | 72.090 | 73.620 | 52.862 | 2,615,768 |
| 2011-03-07 | 72.990 | 72.990 | 72.030 | 72.190 | 51.835 | 3,098,162 |
| 2011-03-04 | 72.500 | 72.860 | 72.210 | 72.810 | 52.280 | 2,677,927 |
| 2011-03-03 | 72.250 | 72.600 | 71.620 | 72.490 | 52.050 | 2,985,543 |
| 2011-03-02 | 73.500 | 73.770 | 70.860 | 71.760 | 51.526 | 6,197,481 |
| 2011-03-01 | 75.110 | 75.390 | 73.430 | 73.620 | 52.862 | 3,507,818 |
| 2011-02-28 | 73.930 | 74.950 | 73.850 | 74.790 | 53.702 | 3,308,674 |
| 2011-02-25 | 73.250 | 74.030 | 73.240 | 73.570 | 52.826 | 1,818,074 |
| 2011-02-24 | 72.790 | 73.530 | 72.300 | 72.980 | 52.402 | 1,848,075 |
| 2011-02-23 | 73.800 | 73.800 | 72.410 | 72.840 | 52.302 | 2,783,601 |
| 2011-02-22 | 75.110 | 75.410 | 73.840 | 73.890 | 53.055 | 2,115,740 |
| 2011-02-18 | 74.820 | 75.480 | 74.300 | 75.430 | 54.161 | 2,130,857 |
| 2011-02-17 | 74.280 | 75.010 | 74.059 | 74.840 | 53.738 | 1,360,175 |
| 2011-02-16 | 74.510 | 75.100 | 74.400 | 74.960 | 53.824 | 1,434,927 |
| 2011-02-15 | 74.350 | 74.540 | 74.120 | 74.330 | 53.371 | 1,460,120 |
| 2011-02-14 | 75.050 | 75.110 | 74.515 | 74.660 | 53.608 | 1,219,993 |
| 2011-02-11 | 74.060 | 75.060 | 74.060 | 75.040 | 53.881 | 1,678,161 |
| 2011-02-10 | 74.440 | 74.653 | 73.940 | 74.550 | 53.529 | 1,938,578 |
| 2011-02-09 | 74.360 | 74.770 | 74.120 | 74.670 | 53.616 | 1,745,926 |
| 2011-02-08 | 74.230 | 74.820 | 74.120 | 74.800 | 53.562 | 1,771,317 |
| 2011-02-07 | 73.960 | 74.280 | 73.620 | 74.250 | 53.168 | 2,446,938 |
| 2011-02-04 | 74.120 | 74.420 | 73.470 | 74.130 | 53.082 | 1,874,250 |
| 2011-02-03 | 71.770 | 74.240 | 71.770 | 74.030 | 53.010 | 3,780,087 |
| 2011-02-02 | 72.150 | 72.480 | 70.540 | 70.850 | 50.733 | 4,454,703 |
| 2011-02-01 | 72.220 | 72.630 | 71.898 | 72.430 | 51.865 | 1,997,692 |
| 2011-01-31 | 72.240 | 72.430 | 71.611 | 71.840 | 51.442 | 2,308,910 |
| 2011-01-28 | 73.330 | 73.580 | 71.750 | 71.930 | 51.507 | 2,425,976 |
| 2011-01-27 | 72.840 | 73.700 | 72.760 | 73.120 | 52.359 | 2,854,405 |
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.