Costco Wholesale Corporation (COST)
NASDAQ: COST · Real-Time Price · USD
943.89
-1.58 (-0.17%)
At close: Aug 31, 2026, 4:00 PM EDT
943.75
-0.14 (-0.01%)
After-hours: Aug 31, 2026, 7:59 PM EDT
Costco Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 31, 2026 | 945.19 | 949.30 | 940.71 | 943.89 | 943.89 | -0.17% | 2,392,709 |
| Aug 28, 2026 | 938.94 | 953.73 | 937.11 | 945.47 | 945.47 | 1.16% | 1,401,469 |
| Aug 27, 2026 | 948.27 | 948.85 | 933.25 | 934.66 | 934.66 | -2.24% | 2,242,458 |
| Aug 26, 2026 | 960.58 | 964.45 | 954.54 | 956.12 | 956.12 | -0.41% | 1,223,015 |
| Aug 25, 2026 | 965.86 | 969.05 | 959.89 | 960.01 | 960.01 | -1.17% | 1,360,603 |
| Aug 24, 2026 | 953.01 | 974.50 | 951.39 | 971.40 | 971.40 | 2.50% | 2,205,864 |
| Aug 21, 2026 | 939.64 | 949.90 | 933.82 | 947.74 | 947.74 | 1.52% | 2,368,373 |
| Aug 20, 2026 | 931.15 | 944.22 | 925.77 | 933.51 | 933.51 | -2.45% | 2,503,679 |
| Aug 19, 2026 | 960.23 | 978.70 | 956.00 | 956.99 | 956.99 | -0.45% | 1,642,283 |
| Aug 18, 2026 | 966.11 | 971.96 | 955.03 | 961.35 | 961.35 | 0.82% | 1,845,157 |
| Aug 17, 2026 | 954.84 | 956.75 | 949.42 | 953.50 | 953.50 | -0.79% | 1,242,967 |
| Aug 14, 2026 | 959.99 | 965.36 | 957.75 | 961.10 | 961.10 | -0.08% | 1,165,412 |
| Aug 13, 2026 | 954.25 | 962.58 | 949.51 | 961.85 | 961.85 | 1.29% | 1,324,920 |
| Aug 12, 2026 | 937.40 | 951.39 | 935.05 | 949.58 | 949.58 | 0.56% | 1,312,225 |
| Aug 11, 2026 | 950.05 | 954.90 | 938.09 | 944.32 | 944.32 | -0.88% | 1,801,428 |
| Aug 10, 2026 | 942.47 | 952.89 | 940.56 | 952.75 | 952.75 | 0.52% | 1,479,642 |
| Aug 7, 2026 | 943.51 | 949.79 | 937.51 | 947.82 | 947.82 | -0.14% | 1,524,247 |
| Aug 6, 2026 | 959.55 | 966.14 | 941.78 | 949.15 | 949.15 | 0.76% | 2,116,908 |
| Aug 5, 2026 | 956.99 | 956.99 | 935.22 | 941.99 | 941.99 | -0.62% | 1,692,426 |
| Aug 4, 2026 | 945.00 | 950.86 | 937.01 | 947.85 | 947.85 | -0.65% | 2,437,253 |
| Aug 3, 2026 | 965.15 | 967.98 | 948.75 | 954.08 | 954.08 | 0.23% | 2,014,078 |
| Jul 31, 2026 | 945.74 | 955.56 | 937.51 | 951.89 | 951.89 | -0.24% | 1,760,194 |
| Jul 30, 2026 | 955.04 | 960.76 | 949.68 | 954.17 | 954.17 | -2.04% | 2,336,010 |
| Jul 29, 2026 | 968.07 | 978.80 | 963.00 | 974.03 | 974.03 | 0.77% | 1,976,428 |
| Jul 28, 2026 | 970.55 | 987.55 | 965.87 | 966.58 | 966.58 | 1.58% | 2,690,594 |
| Jul 27, 2026 | 938.11 | 956.61 | 936.66 | 951.58 | 951.58 | 1.77% | 2,110,004 |
| Jul 24, 2026 | 925.01 | 936.66 | 921.28 | 935.03 | 935.03 | 1.13% | 1,586,611 |
| Jul 23, 2026 | 920.51 | 926.53 | 916.76 | 926.06 | 924.59 | -0.13% | 1,785,244 |
| Jul 22, 2026 | 930.88 | 933.60 | 920.97 | 927.31 | 925.84 | -0.21% | 1,762,703 |
| Jul 21, 2026 | 930.25 | 931.99 | 924.44 | 929.22 | 927.74 | -0.70% | 1,833,478 |
| Jul 20, 2026 | 938.75 | 946.98 | 932.01 | 935.80 | 934.31 | -0.54% | 1,508,337 |
| Jul 17, 2026 | 961.52 | 964.33 | 933.76 | 940.87 | 939.38 | -0.50% | 2,508,007 |
| Jul 16, 2026 | 924.00 | 945.76 | 921.50 | 945.57 | 944.07 | 3.17% | 2,735,301 |
| Jul 15, 2026 | 917.75 | 927.58 | 910.50 | 916.54 | 915.09 | -0.57% | 2,423,207 |
| Jul 14, 2026 | 921.38 | 929.42 | 918.56 | 921.75 | 920.29 | -0.51% | 2,409,202 |
| Jul 13, 2026 | 918.43 | 930.98 | 916.88 | 926.43 | 924.96 | 1.11% | 2,373,336 |
| Jul 10, 2026 | 913.74 | 916.73 | 907.21 | 916.25 | 914.80 | 0.36% | 2,102,257 |
| Jul 9, 2026 | 934.94 | 935.00 | 907.68 | 912.97 | 911.52 | -4.21% | 4,545,245 |
| Jul 8, 2026 | 959.00 | 966.51 | 948.00 | 953.13 | 951.62 | 0.59% | 1,645,512 |
| Jul 7, 2026 | 967.52 | 969.00 | 945.33 | 947.50 | 946.00 | -0.29% | 1,940,191 |
| Jul 6, 2026 | 949.10 | 955.50 | 941.40 | 950.25 | 948.74 | -0.15% | 2,327,543 |
| Jul 2, 2026 | 927.00 | 952.64 | 924.84 | 951.67 | 950.16 | 2.92% | 2,787,532 |
| Jul 1, 2026 | 940.43 | 940.43 | 920.55 | 924.67 | 923.20 | -1.15% | 2,909,693 |
| Jun 30, 2026 | 942.00 | 946.00 | 932.41 | 935.47 | 933.99 | -1.18% | 2,870,944 |
| Jun 29, 2026 | 958.55 | 969.86 | 942.38 | 946.68 | 945.18 | -0.62% | 2,450,035 |
| Jun 26, 2026 | 953.25 | 961.64 | 943.00 | 952.54 | 951.03 | 1.09% | 8,239,163 |
| Jun 25, 2026 | 949.57 | 955.75 | 938.60 | 942.24 | 940.74 | -1.96% | 2,495,029 |
| Jun 24, 2026 | 962.03 | 967.94 | 957.00 | 961.09 | 959.56 | 0.36% | 2,020,218 |
| Jun 23, 2026 | 964.50 | 966.38 | 953.49 | 957.68 | 956.16 | 0.67% | 2,529,841 |
| Jun 22, 2026 | 948.57 | 956.23 | 942.53 | 951.35 | 949.84 | -0.01% | 2,191,926 |