Costco Wholesale (COST) went public on September 22, 1993, when it opened at a split-adjusted price of $6.00.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
February 2026 | $944.23 | $1,009.62 | $931.27 | $971.23 | 17,027,652 |
January 2026 | $859.97 | $991.65 | $851.34 | $940.25 | 55,387,500 |
December 2025 | $911.95 | $925.06 | $842.91 | $861.16 | 63,750,300 |
November 2025 | $911.16 | $943.99 | $872.78 | $912.34 | 48,515,100 |
October 2025 | $920.44 | $961.32 | $901.37 | $910.21 | 53,322,000 |
September 2025 | $936.06 | $978.28 | $900.78 | $923.06 | 50,816,100 |
August 2025 | $936.89 | $996.53 | $930.66 | $940.70 | 47,760,100 |
July 2025 | $985.89 | $992.70 | $921.16 | $935.74 | 45,287,100 |
June 2025 | $1,029.97 | $1,062.65 | $969.85 | $985.83 | 41,983,500 |
May 2025 | $984.70 | $1,048.12 | $978.92 | $1,035.86 | 42,419,900 |
April 2025 | $937.28 | $994.47 | $866.96 | $989.08 | 58,246,300 |
March 2025 | $1,046.01 | $1,060.19 | $876.76 | $940.62 | 55,504,500 |
February 2025 | $966.02 | $1,072.35 | $962.60 | $1,042.89 | 36,725,200 |
January 2025 | $909.01 | $984.51 | $896.09 | $973.46 | 38,420,300 |
December 2024 | $965.00 | $1,001.65 | $906.56 | $910.27 | 44,506,900 |
November 2024 | $868.55 | $969.91 | $861.66 | $965.52 | 39,058,200 |
October 2024 | $878.29 | $902.84 | $860.34 | $867.30 | 35,631,000 |
September 2024 | $889.63 | $916.56 | $861.87 | $879.55 | 40,579,300 |
August 2024 | $812.11 | $911.70 | $786.76 | $885.36 | 39,311,500 |
July 2024 | $845.58 | $888.35 | $796.96 | $815.53 | 45,966,400 |
June 2024 | $803.48 | $865.85 | $799.64 | $842.10 | 34,445,500 |
May 2024 | $715.57 | $811.90 | $708.68 | $802.38 | 40,171,900 |
April 2024 | $723.81 | $732.95 | $689.69 | $716.19 | 38,058,600 |
March 2024 | $732.40 | $778.53 | $703.29 | $724.67 | 50,456,400 |
February 2024 | $686.46 | $744.38 | $683.99 | $735.81 | 37,072,400 |
