Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2018-06-15 | 205.40 | 207.67 | 204.57 | 207.32 | 185.97 | 3,879,641 |
| 2018-06-14 | 204.87 | 205.73 | 204.29 | 205.12 | 184.00 | 1,685,010 |
| 2018-06-13 | 204.92 | 205.83 | 203.21 | 204.11 | 183.09 | 1,665,822 |
| 2018-06-12 | 204.25 | 205.08 | 203.23 | 204.88 | 183.78 | 1,384,769 |
| 2018-06-11 | 203.76 | 204.89 | 203.42 | 204.50 | 183.44 | 1,684,839 |
| 2018-06-08 | 201.51 | 204.01 | 201.00 | 203.76 | 182.78 | 2,052,538 |
| 2018-06-07 | 200.50 | 202.88 | 199.41 | 202.57 | 181.71 | 2,734,952 |
| 2018-06-06 | 198.01 | 198.40 | 196.70 | 197.66 | 177.31 | 2,066,880 |
| 2018-06-05 | 199.22 | 199.35 | 196.99 | 197.84 | 177.47 | 1,868,462 |
| 2018-06-04 | 197.32 | 199.04 | 197.25 | 198.62 | 178.17 | 1,870,566 |
| 2018-06-01 | 195.45 | 198.99 | 195.00 | 197.13 | 176.83 | 4,056,435 |
| 2018-05-31 | 200.22 | 200.70 | 197.70 | 198.24 | 177.83 | 4,822,787 |
| 2018-05-30 | 198.16 | 200.53 | 197.75 | 199.64 | 179.08 | 2,390,862 |
| 2018-05-29 | 198.10 | 198.84 | 196.00 | 196.74 | 176.48 | 2,298,069 |
| 2018-05-25 | 198.89 | 200.22 | 197.82 | 198.36 | 177.93 | 1,330,952 |
| 2018-05-24 | 198.29 | 199.09 | 196.82 | 198.89 | 178.41 | 1,176,296 |
| 2018-05-23 | 199.09 | 199.09 | 196.77 | 198.14 | 177.74 | 1,635,092 |
| 2018-05-22 | 199.72 | 201.77 | 198.83 | 198.97 | 178.48 | 1,563,655 |
| 2018-05-21 | 199.60 | 201.34 | 199.09 | 199.62 | 179.06 | 1,202,798 |
| 2018-05-18 | 199.50 | 199.52 | 197.78 | 198.96 | 178.47 | 1,624,611 |
| 2018-05-17 | 199.06 | 201.35 | 197.89 | 199.60 | 179.05 | 2,391,034 |
| 2018-05-16 | 196.07 | 199.35 | 195.00 | 198.71 | 178.25 | 2,163,192 |
| 2018-05-15 | 194.76 | 196.70 | 193.26 | 195.48 | 175.35 | 2,319,581 |
| 2018-05-14 | 195.96 | 197.27 | 195.42 | 195.88 | 175.71 | 1,440,877 |
| 2018-05-11 | 195.33 | 195.98 | 194.57 | 195.76 | 175.60 | 1,296,311 |
| 2018-05-10 | 196.05 | 196.93 | 194.20 | 195.45 | 175.32 | 1,874,181 |
| 2018-05-09 | 194.15 | 196.42 | 193.15 | 196.04 | 175.34 | 1,999,075 |
| 2018-05-08 | 192.99 | 195.20 | 192.42 | 194.48 | 173.95 | 1,908,637 |
| 2018-05-07 | 195.78 | 195.80 | 192.21 | 193.06 | 172.68 | 2,361,852 |
| 2018-05-04 | 192.84 | 196.40 | 191.28 | 195.19 | 174.58 | 1,704,452 |
| 2018-05-03 | 193.92 | 193.99 | 190.18 | 193.01 | 172.63 | 1,815,453 |
| 2018-05-02 | 195.48 | 195.58 | 192.45 | 194.00 | 173.52 | 2,498,065 |
| 2018-05-01 | 196.49 | 197.08 | 193.51 | 196.55 | 175.80 | 1,413,235 |
| 2018-04-30 | 197.10 | 199.04 | 196.39 | 197.16 | 176.34 | 2,164,979 |
| 2018-04-27 | 194.95 | 196.92 | 194.53 | 196.58 | 175.82 | 1,563,272 |
| 2018-04-26 | 194.12 | 196.44 | 193.34 | 195.26 | 174.64 | 1,445,836 |
| 2018-04-25 | 192.23 | 194.67 | 191.39 | 193.97 | 173.49 | 1,311,650 |
| 2018-04-24 | 194.54 | 195.36 | 191.15 | 192.51 | 172.18 | 1,598,903 |
| 2018-04-23 | 193.81 | 194.38 | 192.26 | 193.35 | 172.94 | 1,618,030 |
| 2018-04-20 | 194.43 | 195.67 | 192.75 | 193.56 | 173.12 | 2,252,819 |
| 2018-04-19 | 196.16 | 196.40 | 193.50 | 195.07 | 174.47 | 2,427,563 |
| 2018-04-18 | 196.30 | 197.77 | 196.12 | 196.51 | 175.76 | 1,663,116 |
| 2018-04-17 | 195.66 | 196.88 | 194.73 | 196.00 | 175.31 | 2,160,451 |
| 2018-04-16 | 191.84 | 195.80 | 191.38 | 194.58 | 174.04 | 3,026,826 |
| 2018-04-13 | 189.81 | 189.83 | 187.01 | 188.91 | 168.96 | 1,744,406 |
| 2018-04-12 | 185.50 | 190.04 | 185.49 | 188.82 | 168.88 | 2,841,623 |
| 2018-04-11 | 182.25 | 186.37 | 182.22 | 184.65 | 165.15 | 1,697,263 |
| 2018-04-10 | 185.75 | 185.97 | 182.17 | 183.55 | 164.17 | 2,527,526 |
| 2018-04-09 | 185.20 | 187.40 | 183.50 | 184.41 | 164.94 | 1,946,009 |
| 2018-04-06 | 185.34 | 187.25 | 183.10 | 183.96 | 164.54 | 2,259,047 |
| 2018-04-05 | 186.70 | 187.00 | 184.93 | 186.25 | 166.59 | 1,933,629 |
| 2018-04-04 | 181.13 | 186.35 | 180.94 | 185.52 | 165.93 | 2,111,406 |
| 2018-04-03 | 183.53 | 184.17 | 181.35 | 182.61 | 163.33 | 2,287,002 |
| 2018-04-02 | 186.91 | 186.91 | 181.05 | 182.75 | 163.45 | 3,599,186 |
| 2018-03-29 | 184.74 | 188.64 | 184.41 | 188.43 | 168.53 | 3,015,962 |
| 2018-03-28 | 183.61 | 184.62 | 181.23 | 183.61 | 164.22 | 2,168,656 |
| 2018-03-27 | 187.44 | 187.66 | 182.06 | 183.15 | 163.81 | 2,495,310 |
| 2018-03-26 | 183.03 | 187.56 | 182.34 | 187.22 | 167.45 | 2,036,617 |
| 2018-03-23 | 183.28 | 184.45 | 180.83 | 180.84 | 161.75 | 2,351,798 |
| 2018-03-22 | 184.90 | 185.55 | 182.50 | 182.64 | 163.36 | 2,489,798 |
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.