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Costco Wholesale Corp (COST) stock

COSTNasdaqRetail-Variety StoresFiscal year ends August 30
Financials through Q4 FY2026, quarter ended Aug 30, 2026Last filing: 10-K on Oct 7, 2026Score 17/3057% above fair value
$1012.28+16.20 (+1.63%)

Close on Oct 30, 2026Market cap $448.93BP/E 48.8Yield 0.55%

Price history

Costco Wholesale share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$1,012.28
+1.63% on the day
52-week range
$844.06 – $1,096.50
-7.7% from the high
Change over 52 weeks
+10.0%
From $920.18 on Oct 30, 2025
Average volume
2.23M
Shares a day, last 90 sessions
DateOpenHighLowCloseChangeVolume
Oct 30, 2026$1,012.05$1,021.31$1,006.56$1,012.28+1.63%3,466,739
Oct 29, 2026$992.98$996.42$984.55$996.08+1.36%1,608,507
Oct 28, 2026$983.91$988.81$980.32$982.73-0.95%1,715,940
Oct 27, 2026$1,002.10$1,002.82$989.04$992.13-1.30%2,242,136
Oct 26, 2026$1,001.32$1,015.14$999.08$1,005.16+0.18%2,374,407
Oct 23, 2026$1,016.00$1,021.45$1,002.68$1,003.32-1.46%2,408,131
Oct 22, 2026$1,007.31$1,018.86$1,001.23$1,018.21+1.99%2,839,741
Oct 21, 2026$991.00$1,000.25$988.47$998.31+0.37%1,512,361
Oct 20, 2026$1,000.00$1,003.00$991.00$994.61-0.09%2,167,808
Oct 19, 2026$986.00$997.43$985.01$995.53+0.65%1,745,588
Oct 16, 2026$982.49$993.19$980.67$989.11+1.13%2,517,278
Oct 15, 2026$998.11$1,008.37$977.24$978.01-0.41%3,000,940
Oct 14, 2026$961.35$982.64$960.00$982.00+2.87%3,079,753
Oct 13, 2026$965.73$966.00$953.78$954.63-0.50%1,422,678
Oct 12, 2026$949.46$960.74$946.70$959.44+1.32%1,480,333
Oct 9, 2026$945.00$951.29$942.53$946.92-0.11%1,503,095
Oct 8, 2026$952.92$953.25$939.60$947.92+0.60%2,272,984
Oct 7, 2026$940.84$948.77$937.60$942.25+0.70%1,772,394
Oct 6, 2026$921.32$937.04$919.00$935.68+1.32%1,902,616
Oct 5, 2026$920.00$925.34$914.75$923.52+0.31%1,955,558
Oct 2, 2026$921.18$921.18$909.66$920.65+0.62%2,025,566
Oct 1, 2026$910.87$923.50$903.78$914.94+0.51%2,126,408
Sep 30, 2026$924.61$925.56$910.30$910.34-1.54%2,219,581
Sep 29, 2026$916.80$925.97$912.66$924.59+0.18%2,415,200
Sep 28, 2026$924.39$931.09$913.00$922.92+0.02%2,443,760
Sep 25, 2026$887.00$925.14$883.10$922.77+2.93%4,631,424
Sep 24, 2026$908.81$909.43$895.26$896.48-0.91%2,893,294
Sep 23, 2026$901.31$905.59$893.36$904.70+0.59%2,283,883
Sep 22, 2026$902.26$903.40$895.84$899.41+0.10%1,982,884
Sep 21, 2026$891.07$899.44$885.50$898.48+0.35%2,163,492

Seasonality

COST return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average3.2%1.5%1.3%2.4%0.9%1.3%3.5%2.9%-0.9%2.2%7.0%-2.4%
Months up8 of 106 of 105 of 108 of 107 of 106 of 107 of 106 of 104 of 105 of 109 of 93 of 9
20269.2%7.5%-1.4%1.8%-5.6%-2.2%1.9%-0.8%-3.6%11.4%
20256.9%7.1%-9.8%5.2%4.7%-4.8%-5.1%0.5%-1.9%-1.4%0.2%-5.6%
20245.3%7.2%-1.5%-1.2%12.0%5.0%-3.2%8.6%-0.7%-1.4%11.3%-5.7%
202312.0%-5.1%2.6%1.3%1.9%5.2%4.1%-1.8%2.9%-2.2%7.5%13.9%
2022-11.0%3.0%10.9%-7.5%-12.3%2.8%13.1%-3.5%-9.5%6.4%7.5%-15.3%
2021-6.5%-5.9%6.5%5.8%1.7%4.6%8.8%6.0%-1.3%9.6%9.7%5.3%
20203.9%-7.8%1.4%6.5%1.8%-1.7%7.6%6.8%2.1%0.9%9.5%-1.3%
20195.4%2.2%10.7%1.4%-2.2%10.3%4.3%7.2%-2.3%3.3%0.9%-2.0%
20184.7%-1.8%-1.3%4.6%0.8%5.4%4.7%6.9%0.8%-2.7%1.4%-11.9%
20172.4%8.4%-5.4%5.9%6.1%-11.4%-0.9%-0.8%4.8%-2.0%14.8%0.9%