Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2020-10-29 | 363.23 | 369.09 | 362.51 | 364.86 | 334.93 | 1,838,468 |
| 2020-10-28 | 367.33 | 372.41 | 364.67 | 364.96 | 334.38 | 1,908,295 |
| 2020-10-27 | 368.77 | 374.91 | 368.77 | 372.72 | 341.49 | 1,525,684 |
| 2020-10-26 | 366.68 | 372.63 | 366.12 | 370.71 | 339.65 | 2,144,995 |
| 2020-10-23 | 375.61 | 376.52 | 373.56 | 374.60 | 343.21 | 1,107,978 |
| 2020-10-22 | 377.35 | 378.38 | 372.03 | 375.75 | 344.27 | 1,813,550 |
| 2020-10-21 | 378.56 | 381.28 | 377.02 | 377.82 | 346.16 | 1,466,495 |
| 2020-10-20 | 377.69 | 382.08 | 376.12 | 378.31 | 346.61 | 1,282,650 |
| 2020-10-19 | 382.03 | 383.09 | 374.71 | 375.56 | 344.09 | 1,938,064 |
| 2020-10-16 | 380.50 | 384.87 | 379.12 | 381.54 | 349.57 | 2,460,490 |
| 2020-10-15 | 376.46 | 378.36 | 373.06 | 376.58 | 345.03 | 1,699,338 |
| 2020-10-14 | 382.89 | 383.87 | 376.70 | 378.34 | 346.64 | 1,905,710 |
| 2020-10-13 | 378.42 | 382.29 | 376.48 | 380.68 | 348.78 | 1,823,278 |
| 2020-10-12 | 371.00 | 380.66 | 370.77 | 376.48 | 344.94 | 2,806,875 |
| 2020-10-09 | 366.00 | 369.75 | 365.70 | 369.46 | 338.50 | 1,730,688 |
| 2020-10-08 | 364.80 | 365.97 | 361.75 | 365.09 | 334.50 | 1,793,133 |
| 2020-10-07 | 360.47 | 364.74 | 359.66 | 363.02 | 332.60 | 1,959,147 |
| 2020-10-06 | 361.90 | 363.00 | 357.04 | 358.35 | 328.32 | 2,760,443 |
| 2020-10-05 | 355.33 | 358.98 | 355.33 | 358.58 | 328.54 | 2,093,540 |
| 2020-10-02 | 354.73 | 357.84 | 352.85 | 355.01 | 325.26 | 2,124,977 |
| 2020-10-01 | 356.26 | 359.69 | 354.82 | 358.46 | 328.43 | 2,052,988 |
| 2020-09-30 | 352.56 | 357.70 | 351.17 | 355.00 | 325.26 | 2,525,800 |
| 2020-09-29 | 348.95 | 354.29 | 347.10 | 352.14 | 322.63 | 2,526,612 |
| 2020-09-28 | 343.76 | 349.77 | 343.10 | 349.62 | 320.33 | 3,459,192 |
| 2020-09-25 | 340.74 | 343.77 | 335.36 | 342.58 | 313.88 | 7,338,492 |
| 2020-09-24 | 345.00 | 347.33 | 338.31 | 347.00 | 317.93 | 5,779,283 |
| 2020-09-23 | 348.00 | 348.25 | 344.06 | 344.63 | 315.75 | 3,577,124 |
| 2020-09-22 | 340.70 | 344.90 | 339.59 | 344.45 | 315.59 | 2,128,063 |
| 2020-09-21 | 333.97 | 339.62 | 333.71 | 339.57 | 311.12 | 2,427,359 |
| 2020-09-18 | 340.20 | 341.22 | 331.20 | 335.96 | 307.81 | 3,409,322 |
| 2020-09-17 | 339.58 | 342.89 | 336.37 | 338.88 | 310.49 | 2,681,457 |
| 2020-09-16 | 347.27 | 348.76 | 343.25 | 343.73 | 314.93 | 1,657,876 |
| 2020-09-15 | 345.02 | 347.76 | 342.75 | 343.91 | 315.09 | 1,362,499 |
| 2020-09-14 | 340.99 | 344.84 | 340.47 | 342.92 | 314.19 | 1,522,316 |
| 2020-09-11 | 340.28 | 343.26 | 336.10 | 339.13 | 310.71 | 1,599,904 |
| 2020-09-10 | 346.27 | 348.00 | 338.76 | 339.53 | 311.08 | 1,959,599 |
| 2020-09-09 | 340.90 | 349.70 | 340.39 | 346.43 | 317.40 | 2,100,864 |
| 2020-09-08 | 343.84 | 344.92 | 338.18 | 338.86 | 310.47 | 2,144,332 |
| 2020-09-04 | 353.98 | 353.98 | 340.40 | 346.57 | 317.53 | 2,557,093 |
| 2020-09-03 | 363.07 | 363.67 | 345.52 | 348.30 | 319.12 | 3,630,441 |
| 2020-09-02 | 353.61 | 359.92 | 351.31 | 358.86 | 328.79 | 2,434,933 |
| 2020-09-01 | 345.71 | 351.49 | 345.41 | 351.38 | 321.94 | 1,774,856 |
| 2020-08-31 | 346.85 | 348.75 | 344.29 | 347.66 | 318.53 | 1,586,941 |
| 2020-08-28 | 347.47 | 349.06 | 345.50 | 348.37 | 319.18 | 1,487,324 |
| 2020-08-27 | 345.61 | 347.74 | 342.55 | 346.36 | 317.34 | 2,221,007 |
| 2020-08-26 | 343.01 | 344.83 | 341.69 | 344.27 | 315.42 | 1,757,268 |
| 2020-08-25 | 344.14 | 344.91 | 341.46 | 344.71 | 315.83 | 1,176,166 |
| 2020-08-24 | 345.11 | 346.11 | 342.11 | 344.13 | 315.30 | 1,461,915 |
| 2020-08-21 | 340.07 | 345.84 | 339.33 | 344.61 | 315.74 | 2,372,580 |
| 2020-08-20 | 340.14 | 341.66 | 338.74 | 340.87 | 312.31 | 1,717,482 |
| 2020-08-19 | 341.12 | 341.94 | 339.95 | 340.90 | 312.34 | 1,730,080 |
| 2020-08-18 | 341.00 | 342.80 | 336.81 | 340.75 | 312.20 | 1,489,444 |
| 2020-08-17 | 337.65 | 340.37 | 337.36 | 339.96 | 311.48 | 1,504,934 |
| 2020-08-14 | 336.53 | 338.76 | 335.60 | 336.28 | 308.10 | 1,522,984 |
| 2020-08-13 | 336.99 | 339.46 | 335.13 | 335.70 | 307.57 | 1,536,633 |
| 2020-08-12 | 333.75 | 338.90 | 333.17 | 336.76 | 308.54 | 1,854,172 |
| 2020-08-11 | 340.85 | 340.85 | 331.80 | 332.43 | 304.58 | 2,065,571 |
| 2020-08-10 | 340.71 | 341.07 | 338.58 | 340.00 | 311.51 | 1,503,771 |
| 2020-08-07 | 343.14 | 344.73 | 339.63 | 340.91 | 312.35 | 1,759,041 |
| 2020-08-06 | 342.41 | 345.12 | 341.61 | 343.31 | 314.54 | 2,104,513 |
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.