Costco Wholesale Corp

COSTNASDAQ · USD
922.92USD0.00 (+0.02%)
675

Costco Wholesale Corp (COST) Historical Volatility

COST 30-day historical volatility is 20%. This ranks in the 51th percentile of readings over the past year.

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Tracking COST historical volatility helps you see how much Costco Wholesale Corp's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, Costco Wholesale Corp's HV tells you what really happened. Use our scanner to monitor COST 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The COST 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Costco Wholesale Corp's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puerto Rico, Canada, the United Kingdom, Mexico, Japan, Korea, Australia, Spain, France, Iceland, China, and Taiwan. It offers branded and private-label products in a range of merchandise categories. The company offers sundries, dry groceries, candies, coolers, freezers, liquor, and tobacco and deli products; appliances, electronics, health and beauty aids, hardware, garden and patio products, sporting goods, tires, toys and seasonal products, office supplies, automotive care products, postages, tickets, apparel, small appliances, furniture, domestics, housewares, special order kiosks, and jewelry; and meat, produce, service deli, and bakery products.

It also operates pharmacies, opticals, food courts, hearing-aid centers, and tire installation centers, as well as 636 gas stations; and offers business delivery, travel, same-day grocery, and various other services online in various countries. As of August 29, 2021, the company operated 815 membership warehouses, including 564 in the United States and Puerto Rico, 105 in Canada, 39 in Mexico, 30 in Japan, 29 in the United Kingdom, 16 in South Korea, 14 in Taiwan, 12 in Australia, 3 in Spain, 1 in Iceland, 1 in France, and 1 in China. It also operates e-commerce websites in the United States, Canada, the United Kingdom, Mexico, South Korea, Taiwan, Japan, and Australia. The company was formerly known as Costco Companies, Inc. and changed its name to Costco Wholesale Corporation in August 1999. Costco Wholesale Corporation was founded in 1976 and is based in Issaquah, Washington.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts Costco Wholesale Corp's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where COST HV is running hot, cold, or in line. Make the COST 30 day historical volatility — and every other window — work for your edge instead of against it.

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of September 28, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of September 28, 2026

See how volatility has moved over time

Track COST historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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