Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2019-08-23 | 278.21 | 280.13 | 272.70 | 274.01 | 248.33 | 1,984,929 |
| 2019-08-22 | 277.01 | 280.99 | 276.87 | 279.92 | 253.68 | 2,345,701 |
| 2019-08-21 | 275.41 | 276.54 | 274.70 | 275.68 | 249.84 | 1,682,347 |
| 2019-08-20 | 276.28 | 276.36 | 272.85 | 272.97 | 247.38 | 1,390,900 |
| 2019-08-19 | 276.41 | 277.38 | 274.55 | 275.61 | 249.78 | 1,314,844 |
| 2019-08-16 | 274.10 | 276.07 | 273.44 | 274.10 | 248.41 | 1,278,604 |
| 2019-08-15 | 270.53 | 272.97 | 268.77 | 271.52 | 246.07 | 1,651,115 |
| 2019-08-14 | 274.00 | 275.36 | 268.00 | 268.15 | 243.01 | 2,122,137 |
| 2019-08-13 | 271.18 | 278.16 | 270.01 | 276.26 | 250.36 | 1,743,336 |
| 2019-08-12 | 274.03 | 274.98 | 269.30 | 271.31 | 245.88 | 1,638,619 |
| 2019-08-09 | 274.58 | 275.47 | 271.91 | 273.94 | 248.26 | 1,284,267 |
| 2019-08-08 | 273.04 | 274.84 | 271.00 | 274.80 | 249.04 | 2,046,674 |
| 2019-08-07 | 268.18 | 274.86 | 263.59 | 274.30 | 248.59 | 3,037,469 |
| 2019-08-06 | 266.47 | 270.23 | 264.05 | 269.31 | 244.07 | 2,383,225 |
| 2019-08-05 | 270.09 | 270.55 | 262.71 | 265.10 | 240.25 | 3,329,760 |
| 2019-08-02 | 274.30 | 274.94 | 270.50 | 272.50 | 246.96 | 1,969,165 |
| 2019-08-01 | 275.75 | 280.93 | 274.31 | 274.57 | 248.83 | 2,634,609 |
| 2019-07-31 | 279.02 | 279.72 | 272.63 | 275.63 | 249.79 | 1,886,852 |
| 2019-07-30 | 280.27 | 280.57 | 279.10 | 279.50 | 253.30 | 978,168 |
| 2019-07-29 | 281.01 | 281.30 | 279.54 | 280.13 | 253.87 | 1,257,360 |
| 2019-07-26 | 279.80 | 281.77 | 279.12 | 281.37 | 255.00 | 1,447,719 |
| 2019-07-25 | 281.20 | 281.94 | 279.34 | 279.80 | 253.57 | 1,600,168 |
| 2019-07-24 | 279.83 | 281.24 | 279.01 | 280.83 | 254.51 | 1,257,368 |
| 2019-07-23 | 281.85 | 282.08 | 279.02 | 280.10 | 253.84 | 1,117,826 |
| 2019-07-22 | 281.22 | 282.32 | 279.32 | 280.17 | 253.91 | 1,461,682 |
| 2019-07-19 | 283.07 | 284.31 | 281.35 | 281.51 | 255.12 | 1,607,618 |
| 2019-07-18 | 282.20 | 283.06 | 279.19 | 282.91 | 256.39 | 1,696,366 |
| 2019-07-17 | 281.05 | 282.85 | 280.22 | 281.56 | 255.17 | 1,716,730 |
| 2019-07-16 | 281.00 | 281.37 | 279.78 | 280.65 | 254.34 | 1,379,215 |
| 2019-07-15 | 279.94 | 280.70 | 278.90 | 280.58 | 254.28 | 1,568,031 |
| 2019-07-12 | 276.50 | 280.00 | 276.01 | 279.44 | 253.25 | 2,046,480 |
| 2019-07-11 | 272.33 | 276.77 | 271.81 | 276.54 | 250.62 | 1,985,628 |
| 2019-07-10 | 270.05 | 271.53 | 269.34 | 271.42 | 245.98 | 1,256,976 |
| 2019-07-09 | 269.36 | 270.78 | 268.49 | 269.97 | 244.66 | 1,400,472 |
| 2019-07-08 | 268.33 | 269.69 | 267.35 | 269.40 | 244.15 | 1,236,007 |
| 2019-07-05 | 268.20 | 268.61 | 266.27 | 268.25 | 243.11 | 1,081,451 |
| 2019-07-03 | 265.14 | 269.16 | 265.14 | 269.14 | 243.91 | 986,472 |
| 2019-07-02 | 263.92 | 265.57 | 261.67 | 265.47 | 240.59 | 1,201,390 |
| 2019-07-01 | 266.43 | 267.00 | 261.84 | 263.55 | 238.85 | 1,960,377 |
| 2019-06-28 | 265.50 | 266.39 | 263.36 | 264.26 | 239.49 | 1,952,692 |
| 2019-06-27 | 264.90 | 266.48 | 262.99 | 265.58 | 240.69 | 1,122,854 |
| 2019-06-26 | 266.45 | 266.82 | 264.34 | 264.41 | 239.63 | 1,334,353 |
| 2019-06-25 | 266.71 | 267.08 | 265.36 | 266.36 | 241.39 | 1,182,443 |
| 2019-06-24 | 267.31 | 267.97 | 266.52 | 266.77 | 241.76 | 1,586,110 |
| 2019-06-21 | 266.77 | 268.94 | 265.99 | 266.13 | 241.18 | 2,964,243 |
| 2019-06-20 | 265.00 | 267.79 | 264.55 | 267.35 | 242.29 | 1,745,108 |
| 2019-06-19 | 262.31 | 264.10 | 260.94 | 263.66 | 238.95 | 1,628,489 |
| 2019-06-18 | 263.61 | 264.20 | 262.05 | 262.74 | 238.11 | 2,763,187 |
| 2019-06-17 | 261.13 | 262.25 | 260.43 | 261.43 | 236.92 | 1,192,307 |
| 2019-06-14 | 260.00 | 261.20 | 258.91 | 260.15 | 235.76 | 1,288,089 |
| 2019-06-13 | 257.71 | 259.87 | 257.55 | 259.71 | 235.37 | 1,228,541 |
| 2019-06-12 | 257.58 | 258.75 | 255.77 | 257.23 | 233.12 | 1,071,667 |
| 2019-06-11 | 258.91 | 259.62 | 256.21 | 257.11 | 233.01 | 1,613,472 |
| 2019-06-10 | 256.40 | 258.83 | 256.11 | 256.85 | 232.77 | 1,839,825 |
| 2019-06-07 | 251.16 | 256.60 | 251.02 | 256.01 | 232.01 | 2,270,617 |
| 2019-06-06 | 248.00 | 251.94 | 247.74 | 251.21 | 227.66 | 1,487,759 |
| 2019-06-05 | 246.10 | 248.76 | 245.02 | 247.96 | 224.72 | 1,825,514 |
| 2019-06-04 | 243.00 | 245.82 | 242.50 | 245.61 | 222.59 | 1,761,622 |
| 2019-06-03 | 239.78 | 241.54 | 238.08 | 241.07 | 218.47 | 2,512,452 |
| 2019-05-31 | 238.98 | 240.66 | 233.05 | 239.58 | 217.12 | 4,058,490 |
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.