Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2015-05-12 | 144.00 | 145.00 | 143.42 | 144.07 | 120.05 | 1,923,886 |
| 2015-05-11 | 145.54 | 146.33 | 144.20 | 144.27 | 120.22 | 1,906,719 |
| 2015-05-08 | 146.00 | 147.56 | 145.80 | 145.88 | 121.56 | 1,728,677 |
| 2015-05-07 | 144.52 | 145.61 | 144.01 | 144.56 | 120.46 | 2,565,148 |
| 2015-05-06 | 145.35 | 145.84 | 144.01 | 144.77 | 120.64 | 1,737,330 |
| 2015-05-05 | 145.12 | 145.74 | 144.29 | 144.50 | 120.41 | 1,769,579 |
| 2015-05-04 | 145.39 | 146.21 | 144.61 | 145.75 | 121.45 | 1,288,750 |
| 2015-05-01 | 143.46 | 145.74 | 143.22 | 145.39 | 121.15 | 1,505,446 |
| 2015-04-30 | 143.85 | 144.90 | 142.54 | 143.05 | 119.20 | 2,523,216 |
| 2015-04-29 | 145.88 | 146.25 | 143.87 | 144.46 | 120.38 | 1,719,013 |
| 2015-04-28 | 146.89 | 147.19 | 146.05 | 146.61 | 121.84 | 1,302,052 |
| 2015-04-27 | 148.30 | 148.51 | 146.86 | 146.96 | 122.13 | 1,716,996 |
| 2015-04-24 | 147.33 | 148.40 | 146.87 | 148.12 | 123.09 | 1,421,088 |
| 2015-04-23 | 146.60 | 147.95 | 146.27 | 147.30 | 122.41 | 1,352,575 |
| 2015-04-22 | 147.93 | 147.93 | 146.28 | 146.98 | 122.14 | 1,424,247 |
| 2015-04-21 | 146.98 | 148.08 | 146.60 | 147.34 | 122.44 | 1,616,723 |
| 2015-04-20 | 146.65 | 147.25 | 145.75 | 146.31 | 121.59 | 2,882,070 |
| 2015-04-17 | 146.58 | 146.73 | 143.10 | 144.57 | 120.14 | 4,369,326 |
| 2015-04-16 | 148.76 | 148.90 | 146.91 | 147.11 | 122.25 | 2,680,610 |
| 2015-04-15 | 149.58 | 150.67 | 149.05 | 149.07 | 123.88 | 1,405,557 |
| 2015-04-14 | 149.00 | 150.10 | 147.72 | 149.52 | 124.25 | 1,540,864 |
| 2015-04-13 | 149.44 | 150.34 | 148.93 | 149.02 | 123.84 | 1,120,171 |
| 2015-04-10 | 149.40 | 150.03 | 148.62 | 149.64 | 124.35 | 1,572,920 |
| 2015-04-09 | 150.57 | 151.00 | 148.27 | 148.81 | 123.66 | 3,401,763 |
| 2015-04-08 | 152.23 | 152.67 | 151.19 | 152.00 | 126.32 | 1,482,950 |
| 2015-04-07 | 152.53 | 152.95 | 151.72 | 151.78 | 126.13 | 1,392,314 |
| 2015-04-06 | 151.37 | 152.84 | 150.60 | 152.50 | 126.73 | 1,767,562 |
| 2015-04-02 | 150.47 | 152.00 | 150.36 | 151.63 | 126.01 | 1,096,109 |
| 2015-04-01 | 151.83 | 151.87 | 149.70 | 150.24 | 124.85 | 1,795,025 |
| 2015-03-31 | 151.84 | 153.00 | 151.25 | 151.50 | 125.90 | 1,886,112 |
| 2015-03-30 | 150.91 | 152.59 | 150.80 | 152.37 | 126.62 | 1,463,754 |
| 2015-03-27 | 150.21 | 151.22 | 150.02 | 150.47 | 125.04 | 1,329,918 |
| 2015-03-26 | 149.32 | 150.77 | 149.17 | 150.06 | 124.70 | 1,554,789 |
| 2015-03-25 | 153.55 | 153.96 | 151.09 | 151.09 | 125.56 | 2,266,792 |
| 2015-03-24 | 152.95 | 154.23 | 152.89 | 153.14 | 127.26 | 1,636,999 |
| 2015-03-23 | 153.15 | 153.56 | 152.70 | 152.93 | 127.09 | 1,666,316 |
| 2015-03-20 | 152.13 | 153.15 | 151.75 | 152.59 | 126.81 | 5,859,312 |
| 2015-03-19 | 151.00 | 151.50 | 150.32 | 151.31 | 125.74 | 1,862,908 |
| 2015-03-18 | 150.00 | 151.63 | 148.25 | 150.93 | 125.43 | 2,773,388 |
| 2015-03-17 | 149.39 | 150.20 | 148.43 | 150.03 | 124.68 | 1,972,534 |
| 2015-03-16 | 149.72 | 151.00 | 149.28 | 149.99 | 124.65 | 2,532,741 |
| 2015-03-13 | 149.09 | 149.91 | 148.15 | 149.28 | 124.06 | 1,470,086 |
| 2015-03-12 | 148.38 | 149.64 | 147.40 | 149.44 | 124.19 | 1,563,991 |
| 2015-03-11 | 148.33 | 148.99 | 147.34 | 147.40 | 122.49 | 1,734,275 |
| 2015-03-10 | 149.75 | 150.15 | 148.15 | 148.16 | 123.12 | 2,128,136 |
| 2015-03-09 | 149.79 | 150.99 | 149.55 | 150.68 | 125.22 | 1,727,892 |
| 2015-03-06 | 149.29 | 150.15 | 148.17 | 149.55 | 124.28 | 3,014,895 |
| 2015-03-05 | 150.77 | 151.75 | 149.00 | 151.17 | 125.63 | 4,471,066 |
| 2015-03-04 | 147.84 | 147.98 | 145.78 | 147.17 | 122.30 | 2,208,591 |
| 2015-03-03 | 147.94 | 148.14 | 146.66 | 147.37 | 122.47 | 1,514,346 |
| 2015-03-02 | 147.32 | 148.49 | 147.32 | 147.94 | 122.94 | 2,108,588 |
| 2015-02-27 | 147.56 | 147.56 | 145.83 | 146.96 | 122.13 | 3,036,187 |
| 2015-02-26 | 147.07 | 147.61 | 146.20 | 146.65 | 121.87 | 1,892,566 |
| 2015-02-25 | 147.70 | 148.60 | 147.19 | 147.48 | 122.56 | 1,603,820 |
| 2015-02-24 | 149.38 | 149.40 | 148.00 | 148.21 | 123.17 | 1,844,184 |
| 2015-02-23 | 148.00 | 148.46 | 147.03 | 148.39 | 123.32 | 1,587,309 |
| 2015-02-20 | 146.67 | 147.79 | 145.90 | 147.54 | 122.60 | 1,596,460 |
| 2015-02-19 | 146.90 | 147.51 | 146.46 | 146.67 | 121.88 | 1,273,712 |
| 2015-02-18 | 147.16 | 147.48 | 146.53 | 147.23 | 122.35 | 1,540,979 |
| 2015-02-17 | 147.00 | 147.61 | 145.66 | 147.53 | 122.60 | 1,541,495 |
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.