Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2016-07-20 | 168.25 | 168.26 | 166.95 | 168.04 | 141.57 | 1,336,877 |
| 2016-07-19 | 167.50 | 168.56 | 167.39 | 168.12 | 141.64 | 1,487,776 |
| 2016-07-18 | 166.56 | 167.86 | 165.92 | 167.51 | 141.13 | 1,993,806 |
| 2016-07-15 | 167.44 | 167.44 | 165.60 | 166.41 | 140.20 | 1,962,460 |
| 2016-07-14 | 167.15 | 168.00 | 166.28 | 166.94 | 140.65 | 2,150,083 |
| 2016-07-13 | 167.00 | 167.19 | 166.02 | 166.78 | 140.51 | 1,479,772 |
| 2016-07-12 | 166.49 | 166.92 | 165.82 | 166.28 | 140.09 | 1,644,614 |
| 2016-07-11 | 165.06 | 167.49 | 165.06 | 166.72 | 140.46 | 2,634,273 |
| 2016-07-08 | 164.84 | 166.10 | 164.49 | 165.44 | 139.38 | 3,932,031 |
| 2016-07-07 | 158.33 | 164.16 | 158.00 | 163.70 | 137.92 | 6,497,912 |
| 2016-07-06 | 155.20 | 156.55 | 154.67 | 156.01 | 131.44 | 2,133,816 |
| 2016-07-05 | 156.08 | 156.15 | 154.70 | 155.25 | 130.80 | 2,807,408 |
| 2016-07-01 | 157.19 | 157.19 | 155.40 | 156.11 | 131.52 | 2,317,430 |
| 2016-06-30 | 156.96 | 157.82 | 155.50 | 157.04 | 132.31 | 3,091,123 |
| 2016-06-29 | 156.44 | 157.28 | 155.89 | 157.08 | 132.34 | 1,942,864 |
| 2016-06-28 | 154.66 | 155.93 | 153.71 | 155.60 | 131.09 | 2,156,326 |
| 2016-06-27 | 154.24 | 154.93 | 152.55 | 154.26 | 129.96 | 2,794,208 |
| 2016-06-24 | 153.16 | 157.69 | 153.10 | 155.56 | 131.06 | 3,996,146 |
| 2016-06-23 | 158.60 | 158.79 | 156.34 | 157.03 | 132.30 | 2,912,400 |
| 2016-06-22 | 157.61 | 158.42 | 157.16 | 158.12 | 133.22 | 2,094,764 |
| 2016-06-21 | 157.07 | 157.90 | 156.66 | 157.20 | 132.44 | 1,909,688 |
| 2016-06-20 | 157.38 | 158.38 | 156.45 | 156.48 | 131.83 | 2,091,170 |
| 2016-06-17 | 157.03 | 157.25 | 155.76 | 155.89 | 131.34 | 2,858,208 |
| 2016-06-16 | 154.86 | 156.50 | 154.11 | 156.42 | 131.78 | 1,937,877 |
| 2016-06-15 | 155.70 | 156.78 | 154.66 | 154.86 | 130.47 | 2,228,482 |
| 2016-06-14 | 154.55 | 156.36 | 153.57 | 155.87 | 131.32 | 3,274,725 |
| 2016-06-13 | 154.76 | 155.96 | 154.57 | 154.95 | 130.55 | 2,576,602 |
| 2016-06-10 | 153.00 | 155.15 | 152.94 | 154.87 | 130.48 | 3,266,487 |
| 2016-06-09 | 153.00 | 154.14 | 152.92 | 154.05 | 129.79 | 1,812,097 |
| 2016-06-08 | 152.68 | 153.47 | 152.05 | 153.37 | 129.21 | 1,528,305 |
| 2016-06-07 | 152.08 | 153.85 | 151.90 | 152.62 | 128.58 | 2,113,045 |
| 2016-06-06 | 151.83 | 152.49 | 151.71 | 152.24 | 128.26 | 1,962,091 |
| 2016-06-03 | 150.30 | 151.78 | 150.27 | 151.71 | 127.82 | 1,964,223 |
| 2016-06-02 | 150.05 | 151.51 | 148.55 | 151.51 | 127.65 | 3,957,636 |
| 2016-06-01 | 150.50 | 153.00 | 150.32 | 152.52 | 128.50 | 3,487,293 |
| 2016-05-31 | 149.57 | 149.88 | 147.63 | 148.77 | 125.34 | 3,738,873 |
| 2016-05-27 | 150.24 | 150.77 | 148.11 | 149.08 | 125.60 | 3,349,772 |
| 2016-05-26 | 149.01 | 153.88 | 147.70 | 149.71 | 126.13 | 7,679,440 |
| 2016-05-25 | 142.62 | 145.68 | 142.51 | 144.54 | 121.78 | 4,166,923 |
| 2016-05-24 | 142.57 | 143.48 | 142.38 | 142.57 | 120.12 | 2,813,053 |
| 2016-05-23 | 142.84 | 144.00 | 141.91 | 142.01 | 119.64 | 1,828,386 |
| 2016-05-20 | 142.73 | 143.50 | 142.02 | 142.69 | 120.22 | 2,089,035 |
| 2016-05-19 | 142.45 | 143.08 | 141.42 | 142.70 | 120.23 | 2,830,546 |
| 2016-05-18 | 140.18 | 141.66 | 138.57 | 141.29 | 119.04 | 5,716,998 |
| 2016-05-17 | 145.50 | 146.24 | 143.22 | 143.60 | 120.98 | 2,928,857 |
| 2016-05-16 | 144.50 | 146.58 | 143.40 | 145.79 | 122.83 | 2,614,957 |
| 2016-05-13 | 146.33 | 146.72 | 144.30 | 144.50 | 121.74 | 2,993,616 |
| 2016-05-12 | 147.32 | 147.77 | 146.32 | 146.72 | 123.61 | 2,860,594 |
| 2016-05-11 | 148.39 | 148.69 | 146.58 | 147.12 | 123.95 | 2,812,658 |
| 2016-05-10 | 149.38 | 149.98 | 148.75 | 149.56 | 126.00 | 1,943,901 |
| 2016-05-09 | 146.83 | 148.97 | 146.51 | 148.59 | 125.19 | 2,843,904 |
| 2016-05-06 | 147.06 | 147.50 | 144.74 | 146.44 | 123.38 | 3,692,230 |
| 2016-05-05 | 148.98 | 150.38 | 146.37 | 147.84 | 124.56 | 4,869,255 |
| 2016-05-04 | 150.12 | 152.00 | 149.44 | 151.51 | 127.65 | 2,111,578 |
| 2016-05-03 | 150.08 | 152.53 | 149.60 | 151.41 | 127.56 | 2,201,284 |
| 2016-05-02 | 148.76 | 151.42 | 147.75 | 150.93 | 127.16 | 3,361,454 |
| 2016-04-29 | 150.01 | 150.98 | 147.46 | 148.13 | 124.80 | 3,588,825 |
| 2016-04-28 | 152.01 | 153.65 | 151.14 | 151.44 | 127.59 | 2,198,415 |
| 2016-04-27 | 152.24 | 152.51 | 150.60 | 151.77 | 127.87 | 1,492,820 |
| 2016-04-26 | 152.08 | 153.45 | 151.67 | 152.60 | 128.19 | 1,552,867 |
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.