Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2015-10-30 | 158.00 | 159.40 | 157.30 | 158.12 | 132.12 | 2,050,031 |
| 2015-10-29 | 157.06 | 158.38 | 156.53 | 158.28 | 132.26 | 1,546,971 |
| 2015-10-28 | 157.50 | 157.93 | 155.51 | 157.76 | 131.82 | 1,778,775 |
| 2015-10-27 | 157.27 | 158.30 | 155.56 | 157.76 | 131.82 | 1,675,064 |
| 2015-10-26 | 152.06 | 157.41 | 151.26 | 156.73 | 130.96 | 2,499,998 |
| 2015-10-23 | 158.70 | 158.80 | 154.91 | 155.74 | 130.13 | 2,273,369 |
| 2015-10-22 | 155.43 | 158.34 | 155.08 | 158.15 | 132.15 | 2,192,364 |
| 2015-10-21 | 154.80 | 155.94 | 154.31 | 155.21 | 129.69 | 1,812,409 |
| 2015-10-20 | 153.72 | 154.88 | 153.16 | 154.56 | 129.15 | 1,875,733 |
| 2015-10-19 | 152.05 | 153.39 | 151.92 | 153.22 | 128.03 | 1,543,687 |
| 2015-10-16 | 152.32 | 152.97 | 151.28 | 152.06 | 127.06 | 1,647,541 |
| 2015-10-15 | 150.83 | 151.90 | 150.22 | 151.77 | 126.82 | 1,696,962 |
| 2015-10-14 | 152.31 | 152.77 | 149.10 | 149.84 | 125.20 | 3,044,929 |
| 2015-10-13 | 153.23 | 154.07 | 152.22 | 152.28 | 127.24 | 1,493,652 |
| 2015-10-12 | 153.97 | 154.48 | 153.09 | 153.63 | 128.37 | 1,200,133 |
| 2015-10-09 | 150.76 | 154.26 | 150.44 | 153.97 | 128.66 | 3,715,461 |
| 2015-10-08 | 147.61 | 151.70 | 147.61 | 151.66 | 126.73 | 2,370,850 |
| 2015-10-07 | 148.72 | 149.32 | 147.43 | 147.96 | 123.63 | 2,340,843 |
| 2015-10-06 | 148.15 | 148.70 | 147.36 | 148.41 | 124.01 | 2,127,776 |
| 2015-10-05 | 146.24 | 148.22 | 146.01 | 148.07 | 123.73 | 2,272,955 |
| 2015-10-02 | 143.25 | 145.91 | 142.19 | 145.86 | 121.88 | 2,591,476 |
| 2015-10-01 | 144.85 | 144.85 | 142.50 | 144.56 | 120.79 | 2,657,336 |
| 2015-09-30 | 143.54 | 144.95 | 142.89 | 144.57 | 120.80 | 2,549,213 |
| 2015-09-29 | 143.04 | 144.14 | 142.25 | 143.72 | 120.09 | 2,513,094 |
| 2015-09-28 | 145.39 | 145.80 | 143.29 | 143.55 | 119.95 | 2,553,489 |
| 2015-09-25 | 145.95 | 146.90 | 145.01 | 145.55 | 121.62 | 1,845,691 |
| 2015-09-24 | 144.37 | 145.42 | 143.65 | 144.87 | 121.05 | 1,974,868 |
| 2015-09-23 | 143.46 | 145.63 | 142.65 | 145.43 | 121.52 | 2,310,212 |
| 2015-09-22 | 141.82 | 142.95 | 140.81 | 142.65 | 119.20 | 1,787,227 |
| 2015-09-21 | 142.36 | 143.78 | 142.09 | 143.21 | 119.66 | 1,004,810 |
| 2015-09-18 | 142.14 | 144.34 | 141.70 | 141.81 | 118.49 | 2,833,921 |
| 2015-09-17 | 143.90 | 145.04 | 143.16 | 143.35 | 119.78 | 1,535,284 |
| 2015-09-16 | 142.21 | 143.86 | 141.75 | 143.61 | 120.00 | 1,374,511 |
| 2015-09-15 | 141.32 | 142.96 | 140.24 | 142.43 | 119.01 | 1,349,715 |
| 2015-09-14 | 141.18 | 141.41 | 140.24 | 141.15 | 117.94 | 1,123,759 |
| 2015-09-11 | 139.85 | 141.20 | 139.28 | 141.05 | 117.86 | 1,452,938 |
| 2015-09-10 | 139.04 | 140.96 | 138.99 | 140.01 | 116.99 | 1,350,689 |
| 2015-09-09 | 142.35 | 142.35 | 139.39 | 139.68 | 116.71 | 1,390,773 |
| 2015-09-08 | 140.54 | 141.48 | 139.12 | 141.43 | 118.18 | 1,637,968 |
| 2015-09-04 | 138.80 | 139.46 | 138.18 | 138.48 | 115.71 | 2,124,589 |
| 2015-09-03 | 140.94 | 141.70 | 140.10 | 140.48 | 117.38 | 1,615,613 |
| 2015-09-02 | 139.83 | 140.87 | 138.42 | 140.42 | 117.33 | 1,810,859 |
| 2015-09-01 | 137.58 | 139.90 | 137.50 | 138.30 | 115.56 | 2,968,167 |
| 2015-08-31 | 139.25 | 140.23 | 138.51 | 140.05 | 117.02 | 3,005,697 |
| 2015-08-28 | 139.75 | 140.30 | 138.64 | 139.95 | 116.94 | 1,850,887 |
| 2015-08-27 | 140.47 | 140.75 | 137.59 | 140.21 | 117.16 | 2,603,075 |
| 2015-08-26 | 136.11 | 138.28 | 133.35 | 138.16 | 115.44 | 3,094,874 |
| 2015-08-25 | 136.78 | 138.38 | 132.65 | 132.71 | 110.89 | 4,645,092 |
| 2015-08-24 | 131.97 | 137.16 | 117.03 | 132.97 | 111.11 | 5,205,772 |
| 2015-08-21 | 142.22 | 143.33 | 138.99 | 138.99 | 116.14 | 3,611,352 |
| 2015-08-20 | 144.29 | 144.88 | 143.29 | 143.71 | 120.08 | 1,785,120 |
| 2015-08-19 | 145.39 | 145.94 | 143.64 | 145.17 | 121.30 | 1,437,093 |
| 2015-08-18 | 146.16 | 146.48 | 145.12 | 145.63 | 121.69 | 1,099,071 |
| 2015-08-17 | 145.15 | 146.24 | 144.98 | 146.09 | 122.07 | 912,619 |
| 2015-08-14 | 144.88 | 146.42 | 144.88 | 146.09 | 122.07 | 1,210,404 |
| 2015-08-13 | 146.36 | 146.98 | 145.18 | 145.27 | 121.39 | 1,114,191 |
| 2015-08-12 | 144.95 | 146.72 | 143.35 | 146.49 | 122.41 | 1,963,803 |
| 2015-08-11 | 145.28 | 146.29 | 145.01 | 145.89 | 121.57 | 1,260,686 |
| 2015-08-10 | 146.30 | 146.79 | 145.68 | 146.25 | 121.87 | 1,072,609 |
| 2015-08-07 | 146.02 | 146.44 | 144.35 | 145.26 | 121.04 | 1,229,423 |
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.