Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2018-09-11 | 243.93 | 245.16 | 243.17 | 244.21 | 219.61 | 2,185,657 |
| 2018-09-10 | 243.00 | 243.80 | 242.12 | 243.18 | 218.68 | 2,817,471 |
| 2018-09-07 | 237.31 | 242.95 | 237.20 | 241.46 | 217.13 | 2,722,823 |
| 2018-09-06 | 235.47 | 236.77 | 235.06 | 236.68 | 212.83 | 1,853,243 |
| 2018-09-05 | 234.57 | 236.17 | 233.20 | 235.61 | 211.87 | 2,126,027 |
| 2018-09-04 | 233.14 | 234.91 | 233.14 | 234.68 | 211.04 | 1,858,396 |
| 2018-08-31 | 230.21 | 233.52 | 230.21 | 233.13 | 209.64 | 1,881,346 |
| 2018-08-30 | 229.62 | 231.16 | 229.44 | 230.83 | 207.57 | 1,272,010 |
| 2018-08-29 | 231.79 | 232.00 | 228.73 | 230.19 | 206.49 | 1,793,792 |
| 2018-08-28 | 230.94 | 231.83 | 229.84 | 230.26 | 206.55 | 1,882,143 |
| 2018-08-27 | 232.74 | 232.86 | 228.10 | 230.03 | 206.34 | 1,904,071 |
| 2018-08-24 | 230.00 | 232.06 | 229.60 | 231.28 | 207.46 | 1,453,290 |
| 2018-08-23 | 229.00 | 230.35 | 228.57 | 229.51 | 205.88 | 1,338,164 |
| 2018-08-22 | 228.48 | 230.23 | 228.38 | 229.21 | 205.61 | 1,268,080 |
| 2018-08-21 | 229.49 | 230.10 | 227.70 | 228.54 | 205.01 | 2,066,671 |
| 2018-08-20 | 226.00 | 228.22 | 225.97 | 227.35 | 203.94 | 1,783,663 |
| 2018-08-17 | 222.33 | 225.88 | 222.15 | 225.68 | 202.44 | 1,980,933 |
| 2018-08-16 | 223.45 | 224.26 | 222.14 | 223.19 | 200.21 | 1,657,827 |
| 2018-08-15 | 220.72 | 222.11 | 218.77 | 221.67 | 198.84 | 1,844,066 |
| 2018-08-14 | 220.01 | 222.56 | 219.86 | 222.00 | 199.14 | 1,450,552 |
| 2018-08-13 | 221.03 | 221.58 | 219.06 | 219.56 | 196.95 | 1,519,026 |
| 2018-08-10 | 218.14 | 221.72 | 217.75 | 220.31 | 197.62 | 2,830,841 |
| 2018-08-09 | 221.62 | 222.35 | 216.91 | 218.24 | 195.77 | 3,637,144 |
| 2018-08-08 | 222.86 | 224.88 | 222.24 | 224.58 | 201.45 | 2,015,845 |
| 2018-08-07 | 223.24 | 225.48 | 222.98 | 223.86 | 200.81 | 1,428,145 |
| 2018-08-06 | 221.43 | 223.27 | 221.01 | 222.72 | 199.79 | 1,285,660 |
| 2018-08-03 | 221.00 | 222.62 | 221.00 | 222.03 | 199.17 | 1,195,653 |
| 2018-08-02 | 215.01 | 221.40 | 215.01 | 221.12 | 198.35 | 1,904,858 |
| 2018-08-01 | 218.65 | 219.10 | 216.25 | 217.13 | 194.77 | 1,841,316 |
| 2018-07-31 | 219.69 | 220.07 | 218.33 | 218.71 | 196.19 | 1,888,516 |
| 2018-07-30 | 219.04 | 220.12 | 218.61 | 219.11 | 196.55 | 1,292,741 |
| 2018-07-27 | 222.31 | 222.50 | 218.76 | 219.65 | 197.03 | 1,596,914 |
| 2018-07-26 | 222.00 | 224.62 | 220.82 | 221.72 | 198.89 | 1,820,005 |
| 2018-07-25 | 217.61 | 220.82 | 217.37 | 220.70 | 197.97 | 1,562,432 |
| 2018-07-24 | 219.41 | 220.68 | 217.59 | 218.58 | 196.07 | 1,453,974 |
| 2018-07-23 | 219.88 | 220.46 | 218.20 | 218.84 | 196.30 | 1,394,347 |
| 2018-07-20 | 216.98 | 218.94 | 216.24 | 218.69 | 196.17 | 1,797,886 |
| 2018-07-19 | 214.46 | 218.20 | 214.03 | 217.54 | 195.14 | 2,790,767 |
| 2018-07-18 | 215.34 | 215.88 | 213.60 | 214.97 | 192.83 | 1,869,527 |
| 2018-07-17 | 214.06 | 216.16 | 214.00 | 215.00 | 192.86 | 2,064,776 |
| 2018-07-16 | 216.64 | 217.13 | 213.90 | 214.85 | 192.73 | 2,078,572 |
| 2018-07-13 | 214.00 | 216.64 | 213.71 | 216.54 | 194.24 | 1,951,183 |
| 2018-07-12 | 212.54 | 214.17 | 212.22 | 214.02 | 191.98 | 2,221,975 |
| 2018-07-11 | 211.21 | 211.78 | 209.97 | 210.95 | 189.23 | 1,472,787 |
| 2018-07-10 | 210.99 | 212.70 | 210.83 | 211.70 | 189.90 | 1,687,801 |
| 2018-07-09 | 210.52 | 211.79 | 210.00 | 210.94 | 189.22 | 1,738,347 |
| 2018-07-06 | 207.14 | 210.39 | 206.66 | 209.62 | 188.03 | 1,523,193 |
| 2018-07-05 | 208.20 | 209.29 | 207.55 | 209.14 | 187.60 | 1,436,725 |
| 2018-07-03 | 208.53 | 209.91 | 206.90 | 207.12 | 185.79 | 842,101 |
| 2018-07-02 | 208.42 | 208.82 | 206.05 | 207.99 | 186.57 | 1,876,070 |
| 2018-06-29 | 209.66 | 210.53 | 208.32 | 208.98 | 187.46 | 2,164,570 |
| 2018-06-28 | 210.00 | 211.19 | 208.05 | 208.71 | 187.22 | 1,826,827 |
| 2018-06-27 | 210.50 | 212.42 | 209.61 | 210.03 | 188.40 | 2,211,658 |
| 2018-06-26 | 212.38 | 212.46 | 209.97 | 210.09 | 188.46 | 2,276,654 |
| 2018-06-25 | 210.01 | 212.08 | 209.97 | 211.75 | 189.94 | 2,398,551 |
| 2018-06-22 | 210.37 | 211.77 | 210.02 | 211.10 | 189.36 | 1,738,640 |
| 2018-06-21 | 208.17 | 211.11 | 208.00 | 209.96 | 188.34 | 1,825,824 |
| 2018-06-20 | 207.76 | 208.59 | 206.96 | 207.98 | 186.56 | 1,527,724 |
| 2018-06-19 | 204.90 | 207.81 | 204.62 | 207.53 | 186.16 | 1,940,614 |
| 2018-06-18 | 206.00 | 208.11 | 205.15 | 206.21 | 184.98 | 1,975,036 |
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.