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Costco's Sales Surge 6.3% in August: What's Behind the Winning Streak?
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Key Takeaways
Costco's August comparable sales rose 6.3%, led by gains across U.S., Canada, and international.
E-commerce comps surged 18.4% in August, building on double-digit gains in prior months.
Net sales for August hit $21.56B, up 8.7% from $19.83B in the year-ago period.
Costco Wholesale Corporation (COST - Free Report) sustained its steady comparable sales growth in August, reflecting its ongoing strength with value-conscious consumers. The company’s competitive pricing and quality merchandise — available both in-store and through its expanding e-commerce platform — continue to resonate with shoppers navigating inflationary pressures.
Decoding Costco’s August Comparable Sales
For the four weeks ended Aug. 31, 2025, Costco reported a 6.3% year-over-year increase in total company comparable sales. Regionally, comparable sales rose 6.1% in the United States, 6.8% in Canada and 6.7% in Other International markets. This follows total comparable sales growth of 6.4% in July and 5.8% in June, signaling consistent momentum.
On an adjusted basis, excluding the impacts of gasoline price fluctuations and foreign exchange, U.S. comps climbed 6.7%, while Canada and Other International markets posted increases of 9.4% and 5.3%, respectively. Overall, total company comps, excluding these factors, grew 6.9%, following strong rises of 7% in July and 6.2% in June.
E-commerce also remained a bright spot, with comparable sales surging 18.4% or 18.3% when adjusted for fuel and currency headwinds. This builds on gains of 15.1% in July and 11.5% in June, reflecting sustained strength in Costco’s online channel.
As a result, Costco's net sales for August increased 8.7% to $21.56 billion, up from $19.83 billion in the same period last year. This follows a sales improvement of 8.5% and 8% reported in July and June, respectively.
Image Source: Zacks Investment Research
What’s Fueling Costco’s Momentum?
Membership Power: Costco’s membership-based model, characterized by high renewal rates, fosters a loyal customer base that consistently returns.
Competitive Pricing: Bulk purchasing and efficient supply chain management enable the retailer to maintain sharp pricing, a significant advantage in a high-inflation environment.
Strong Value Proposition: Customers trust Costco for quality products at attractive prices, driving both in-store and online traffic.
Shares of this Zacks Rank #3 (Hold) company have advanced 7.5% over the past year, outperforming the Retail – Discount Stores industry’s 6.9% rise.
The Zacks Consensus Estimate for Post Holdings’ current financial-year sales and earnings implies growth of 3.1% and 11%, respectively, from the year-ago reported numbers.
The TJX Companies, Inc. (TJX - Free Report) , the leading off-price apparel and home fashion retailer in the United States and worldwide, currently carries a Zacks Rank #2 (Buy). TJX has a trailing four-quarter earnings surprise of 5.4%, on average.
The Zacks Consensus Estimate for The TJX Companies’ current financial-year sales and earnings calls for growth of 5.4% and 7%, respectively, from the year-ago reported numbers.
Grocery Outlet Holding Corp. (GO - Free Report) , an extreme value retailer of quality, name-brand consumables and fresh products, carries a Zacks Rank #2. GO has a trailing four-quarter earnings surprise of 28.2%, on average.
The Zacks Consensus Estimate for Grocery Outlet’s current financial-year sales and earnings suggests growth of 8.3% and 1.3%, respectively, from the year-ago reported numbers.
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Costco's Sales Surge 6.3% in August: What's Behind the Winning Streak?
Key Takeaways
Costco Wholesale Corporation (COST - Free Report) sustained its steady comparable sales growth in August, reflecting its ongoing strength with value-conscious consumers. The company’s competitive pricing and quality merchandise — available both in-store and through its expanding e-commerce platform — continue to resonate with shoppers navigating inflationary pressures.
Decoding Costco’s August Comparable Sales
For the four weeks ended Aug. 31, 2025, Costco reported a 6.3% year-over-year increase in total company comparable sales. Regionally, comparable sales rose 6.1% in the United States, 6.8% in Canada and 6.7% in Other International markets. This follows total comparable sales growth of 6.4% in July and 5.8% in June, signaling consistent momentum.
On an adjusted basis, excluding the impacts of gasoline price fluctuations and foreign exchange, U.S. comps climbed 6.7%, while Canada and Other International markets posted increases of 9.4% and 5.3%, respectively. Overall, total company comps, excluding these factors, grew 6.9%, following strong rises of 7% in July and 6.2% in June.
E-commerce also remained a bright spot, with comparable sales surging 18.4% or 18.3% when adjusted for fuel and currency headwinds. This builds on gains of 15.1% in July and 11.5% in June, reflecting sustained strength in Costco’s online channel.
As a result, Costco's net sales for August increased 8.7% to $21.56 billion, up from $19.83 billion in the same period last year. This follows a sales improvement of 8.5% and 8% reported in July and June, respectively.
Image Source: Zacks Investment Research
What’s Fueling Costco’s Momentum?
Membership Power: Costco’s membership-based model, characterized by high renewal rates, fosters a loyal customer base that consistently returns.
Competitive Pricing: Bulk purchasing and efficient supply chain management enable the retailer to maintain sharp pricing, a significant advantage in a high-inflation environment.
Strong Value Proposition: Customers trust Costco for quality products at attractive prices, driving both in-store and online traffic.
Shares of this Zacks Rank #3 (Hold) company have advanced 7.5% over the past year, outperforming the Retail – Discount Stores industry’s 6.9% rise.
Picks You Can’t Miss Out On
Post Holdings, Inc. (POST - Free Report) , a consumer packaged goods holding company, currently sports a Zacks Rank #1 (Strong Buy). POST has a trailing four-quarter earnings surprise of 21.4%, on average. You can see the complete list of today’s Zacks #1 Rank stocks here.
The Zacks Consensus Estimate for Post Holdings’ current financial-year sales and earnings implies growth of 3.1% and 11%, respectively, from the year-ago reported numbers.
The TJX Companies, Inc. (TJX - Free Report) , the leading off-price apparel and home fashion retailer in the United States and worldwide, currently carries a Zacks Rank #2 (Buy). TJX has a trailing four-quarter earnings surprise of 5.4%, on average.
The Zacks Consensus Estimate for The TJX Companies’ current financial-year sales and earnings calls for growth of 5.4% and 7%, respectively, from the year-ago reported numbers.
Grocery Outlet Holding Corp. (GO - Free Report) , an extreme value retailer of quality, name-brand consumables and fresh products, carries a Zacks Rank #2. GO has a trailing four-quarter earnings surprise of 28.2%, on average.
The Zacks Consensus Estimate for Grocery Outlet’s current financial-year sales and earnings suggests growth of 8.3% and 1.3%, respectively, from the year-ago reported numbers.