Costco Wholesale (COST) went public on September 22, 1993, when it opened at a split-adjusted price of $5.65.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
July 2026 | $938.94 | $967.46 | $905.77 | $935.03 | 39,183,399 |
June 2026 | $953.48 | $995.83 | $930.93 | $933.99 | 53,972,555 |
May 2026 | $1,013.76 | $1,094.76 | $943.95 | $954.80 | 46,869,590 |
April 2026 | $992.01 | $1,032.68 | $963.07 | $1,011.45 | 37,363,545 |
March 2026 | $1,007.84 | $1,017.72 | $957.55 | $993.41 | 39,158,973 |
February 2026 | $941.37 | $1,025.32 | $928.44 | $1,007.72 | 41,960,879 |
January 2026 | $857.36 | $988.64 | $848.75 | $937.40 | 55,387,522 |
December 2025 | $909.19 | $922.25 | $840.35 | $858.55 | 63,688,169 |
November 2025 | $908.39 | $941.13 | $870.13 | $909.58 | 48,515,011 |
October 2025 | $917.65 | $958.41 | $898.64 | $907.45 | 53,321,900 |
September 2025 | $933.22 | $975.31 | $898.05 | $920.26 | 50,816,312 |
August 2025 | $934.05 | $993.50 | $927.83 | $937.85 | 47,760,824 |
July 2025 | $982.90 | $989.69 | $918.36 | $932.90 | 45,293,695 |
June 2025 | $1,026.85 | $1,059.42 | $966.91 | $982.84 | 41,991,726 |
May 2025 | $981.72 | $1,044.94 | $975.95 | $1,032.72 | 42,428,106 |
April 2025 | $934.44 | $991.45 | $864.32 | $986.08 | 58,246,248 |
March 2025 | $1,042.83 | $1,056.97 | $874.09 | $937.77 | 55,506,371 |
February 2025 | $963.09 | $1,069.10 | $959.67 | $1,039.73 | 36,727,841 |
January 2025 | $906.25 | $981.52 | $893.37 | $970.51 | 38,426,686 |
December 2024 | $962.07 | $998.61 | $903.81 | $907.51 | 44,508,096 |
November 2024 | $865.91 | $966.96 | $859.05 | $962.59 | 39,059,694 |
October 2024 | $875.62 | $900.10 | $857.73 | $864.67 | 35,631,743 |
September 2024 | $886.93 | $913.78 | $859.25 | $876.88 | 40,583,208 |
August 2024 | $809.65 | $908.93 | $784.37 | $882.67 | 39,311,365 |
July 2024 | $843.02 | $885.66 | $794.54 | $813.06 | 45,968,226 |