Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2014-08-22 | 121.90 | 122.06 | 121.15 | 121.29 | 97.078 | 1,404,965 |
| 2014-08-21 | 120.79 | 121.88 | 120.72 | 121.62 | 97.342 | 1,552,235 |
| 2014-08-20 | 120.45 | 121.23 | 120.09 | 120.91 | 96.774 | 1,287,408 |
| 2014-08-19 | 119.38 | 120.75 | 119.24 | 120.61 | 96.534 | 1,708,885 |
| 2014-08-18 | 119.00 | 119.68 | 118.95 | 119.46 | 95.613 | 1,240,085 |
| 2014-08-15 | 119.91 | 119.95 | 117.78 | 118.57 | 94.901 | 2,025,928 |
| 2014-08-14 | 118.51 | 119.27 | 118.31 | 119.26 | 95.453 | 1,067,902 |
| 2014-08-13 | 119.00 | 119.10 | 118.25 | 118.64 | 94.957 | 1,458,110 |
| 2014-08-12 | 118.77 | 119.27 | 118.55 | 119.01 | 95.253 | 1,082,111 |
| 2014-08-11 | 119.40 | 119.51 | 118.70 | 119.18 | 95.389 | 1,232,987 |
| 2014-08-08 | 117.96 | 119.40 | 117.81 | 119.16 | 95.373 | 2,329,870 |
| 2014-08-07 | 118.22 | 119.00 | 117.47 | 117.80 | 94.285 | 2,698,210 |
| 2014-08-06 | 117.95 | 119.97 | 117.80 | 119.59 | 95.717 | 2,859,824 |
| 2014-08-05 | 117.50 | 118.20 | 117.29 | 118.05 | 94.485 | 1,798,588 |
| 2014-08-04 | 117.55 | 118.38 | 117.11 | 118.15 | 94.565 | 1,683,789 |
| 2014-08-01 | 117.80 | 118.33 | 117.46 | 117.88 | 94.349 | 2,089,466 |
| 2014-07-31 | 117.54 | 118.34 | 117.28 | 117.54 | 94.076 | 2,477,018 |
| 2014-07-30 | 118.79 | 119.07 | 117.44 | 118.18 | 94.589 | 2,032,545 |
| 2014-07-29 | 118.93 | 119.60 | 118.53 | 118.90 | 95.165 | 2,545,375 |
| 2014-07-28 | 117.44 | 117.66 | 116.81 | 117.12 | 93.740 | 1,402,633 |
| 2014-07-25 | 117.96 | 118.03 | 117.07 | 117.55 | 94.084 | 1,549,356 |
| 2014-07-24 | 117.50 | 118.28 | 117.46 | 118.14 | 94.557 | 1,352,474 |
| 2014-07-23 | 117.41 | 117.76 | 117.27 | 117.59 | 94.116 | 1,155,161 |
| 2014-07-22 | 117.28 | 118.04 | 117.10 | 117.55 | 94.084 | 1,768,971 |
| 2014-07-21 | 117.43 | 117.91 | 116.86 | 117.04 | 93.676 | 1,340,803 |
| 2014-07-18 | 117.32 | 117.80 | 116.61 | 117.74 | 94.236 | 2,156,182 |
| 2014-07-17 | 117.35 | 117.54 | 116.58 | 116.79 | 93.476 | 1,436,645 |
| 2014-07-16 | 118.09 | 118.44 | 117.66 | 117.85 | 94.325 | 1,531,201 |
| 2014-07-15 | 118.16 | 118.25 | 117.18 | 117.82 | 94.301 | 2,637,139 |
| 2014-07-14 | 118.21 | 118.49 | 117.30 | 117.36 | 93.932 | 1,703,089 |
| 2014-07-11 | 118.13 | 118.25 | 117.09 | 118.01 | 94.453 | 1,684,853 |
| 2014-07-10 | 117.50 | 118.64 | 117.50 | 118.08 | 94.509 | 2,266,386 |
| 2014-07-09 | 117.21 | 117.99 | 117.11 | 117.92 | 94.381 | 2,328,158 |
| 2014-07-08 | 116.45 | 117.65 | 116.11 | 117.46 | 93.728 | 2,584,447 |
| 2014-07-07 | 116.33 | 116.49 | 115.88 | 116.32 | 92.819 | 1,576,930 |
| 2014-07-03 | 115.86 | 116.59 | 115.80 | 116.35 | 92.843 | 976,048 |
| 2014-07-02 | 115.25 | 115.91 | 115.25 | 115.75 | 92.364 | 1,122,270 |
| 2014-07-01 | 115.54 | 115.70 | 114.90 | 115.44 | 92.116 | 1,501,715 |
| 2014-06-30 | 115.62 | 116.09 | 115.10 | 115.16 | 91.893 | 1,389,991 |
| 2014-06-27 | 115.63 | 115.75 | 115.01 | 115.49 | 92.156 | 2,477,302 |
| 2014-06-26 | 116.24 | 116.50 | 115.28 | 115.64 | 92.276 | 1,252,089 |
| 2014-06-25 | 116.00 | 116.45 | 115.68 | 116.27 | 92.779 | 1,188,720 |
| 2014-06-24 | 115.53 | 116.51 | 115.08 | 116.31 | 92.811 | 1,906,557 |
| 2014-06-23 | 115.20 | 115.32 | 114.51 | 115.22 | 91.941 | 1,509,532 |
| 2014-06-20 | 116.65 | 116.65 | 115.09 | 115.36 | 92.053 | 2,966,299 |
| 2014-06-19 | 116.57 | 116.58 | 115.78 | 116.26 | 92.771 | 1,635,755 |
| 2014-06-18 | 115.66 | 116.34 | 115.07 | 116.27 | 92.779 | 2,113,173 |
| 2014-06-17 | 115.40 | 115.79 | 115.14 | 115.45 | 92.124 | 1,505,805 |
| 2014-06-16 | 115.32 | 115.46 | 114.95 | 115.43 | 92.108 | 1,503,081 |
| 2014-06-13 | 115.70 | 115.70 | 114.67 | 115.30 | 92.005 | 1,230,071 |
| 2014-06-12 | 116.13 | 116.43 | 115.07 | 115.44 | 92.116 | 1,427,319 |
| 2014-06-11 | 116.46 | 116.94 | 115.98 | 116.24 | 92.755 | 1,117,146 |
| 2014-06-10 | 117.37 | 117.73 | 116.90 | 117.10 | 93.441 | 1,089,123 |
| 2014-06-09 | 118.21 | 118.85 | 117.47 | 117.78 | 93.984 | 1,623,136 |
| 2014-06-06 | 117.69 | 118.24 | 117.58 | 118.23 | 94.343 | 1,669,550 |
| 2014-06-05 | 117.00 | 117.94 | 116.72 | 117.75 | 93.960 | 2,614,252 |
| 2014-06-04 | 115.29 | 116.49 | 115.27 | 116.31 | 92.811 | 1,297,837 |
| 2014-06-03 | 115.47 | 116.00 | 115.27 | 115.51 | 92.172 | 1,127,418 |
| 2014-06-02 | 115.84 | 116.14 | 115.54 | 115.68 | 92.308 | 1,085,483 |
| 2014-05-30 | 114.61 | 116.09 | 114.01 | 116.02 | 92.579 | 2,622,386 |
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.