Investment Outlook: Walmart vs. Costco
Written by Emily J. Thompson, Senior Investment Analyst
Updated: May 13 2026
0mins
Source: Fool
- Stock Performance Comparison: Over the past five years, Walmart's stock has risen approximately 190%, while Costco's has increased by 175%, both outperforming the S&P 500's 82% gain, indicating strong resilience in fluctuating economic conditions.
- Valuation and Market Cap Analysis: Walmart's market cap has reached $1 trillion, while Costco stands at around $450 billion; despite both appearing overvalued, Walmart's P/E ratio is 53, compared to Costco's 48, reflecting high market expectations for both companies.
- Growth Potential Assessment: Although both retailers are experiencing single-digit growth, Costco's growth rate typically exceeds Walmart's, particularly when consumer spending appetite increases, highlighting its potential advantage in economic recovery scenarios.
- Market Positioning Differences: Walmart focuses more on essentials, while Costco encourages higher discretionary spending; as economic conditions improve, Costco's growth potential may be greater, especially in e-commerce and new market expansions.
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Analyst Views on COST
Wall Street analysts forecast COST stock price to rise
24 Analyst Rating
19 Buy
4 Hold
1 Sell
Strong Buy
Current: 972.350
Low
769.00
Averages
1061
High
1205
Current: 972.350
Low
769.00
Averages
1061
High
1205
About COST
Costco Wholesale Corporation (Costco) operates membership warehouses and e-commerce sites that offer a selection of nationally branded and private-label products in a wide range of categories. The Company buys the majority of its merchandise directly from suppliers and route it to cross-docking consolidation points (depots) or directly to its warehouses. It operates 891 warehouses, including 614 in the United States and Puerto Rico, 108 in Canada, 40 in Mexico, 35 in Japan, 29 in the United Kingdom, 19 in Korea, 15 in Australia, 14 in Taiwan, seven in China, five in Spain, two in France, and one each in Iceland, New Zealand and Sweden. It also operates e-commerce sites in the United States, Canada, the United Kingdom, Mexico, Korea, Taiwan, Japan and Australia. The Company provides wide selection of merchandise, plus the convenience of specialty departments and exclusive member services.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
- Strong Sales Performance: Costco's net sales rose 11.6% year-over-year to $69.15 billion, with total revenue of $70.53 billion exceeding Wall Street expectations, demonstrating robust performance in the retail sector.
- Stable Membership Renewals: Membership fees increased by 10.7% to $1.37 billion, with renewal rates exceeding 92% in the U.S. and Canada, indicating a solid membership base that provides strong cash flow support for the company.
- Digital Sales Surge: Digital sales jumped 21.5%, with app and website traffic rising 37%, and personalized recommendations contributing nearly $5 billion in e-commerce sales, showcasing Costco's success in digital transformation.
- Market Reaction Tepid: Despite strong results, the stock price fell nearly 5% following the earnings report, reflecting market concerns over high valuations and investor caution towards any minor misses.
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- Significant Revenue Growth: Costco's total revenue for Q3 of fiscal 2026 increased by 11.6% year-over-year to $70.5 billion, demonstrating the company's strong resilience and appeal in a highly competitive retail market.
- Outstanding Same-Store Sales: The same-store sales rose by 9.8% in Q3, with a 6.6% increase when excluding gas prices and foreign exchange fluctuations, reflecting consumers' continued loyalty and high traffic to Costco.
- Robust Business Model: Costco leverages its scale to negotiate favorable terms with suppliers, maintaining a low-price strategy that further solidifies its competitive position in the retail sector, especially amid increasing economic uncertainties.
- Strong Investor Confidence: Despite challenges from inflation and economic slowdown, Costco has achieved a total return of 634% over the past decade, indicating high market recognition of its safety and stability, even as its P/E ratio stands at 48, making it a favored choice among investors.
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- Significant Financial Growth: Costco's total revenue for Q3 of fiscal 2026 increased by 11.6% year-over-year to $70.5 billion, with diluted earnings per share rising by 15.2%, demonstrating the company's robust financial performance amid macroeconomic uncertainty.
- Strong Same-Store Sales: Despite the impact of higher gas prices, Costco's same-store sales grew by 9.8%, with a 6.6% increase when excluding gas and foreign exchange effects, reflecting consumers' continued preference for its low prices and high-quality products.
- Market Valuation Reflects Stability: Costco's price-to-earnings ratio stands at 48, which is higher than its competitor Nvidia's 34, yet investors continue to value its safety and stability, indicating strong market confidence in its business model.
- Outstanding Long-Term Returns: Over the past decade, Costco has achieved a total return of 634%, showcasing its resilience during economic fluctuations and further solidifying its leadership position in the retail sector.
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- Pricing Strategy Continuity: Costco maintains its low-price strategy amidst inflationary pressures, recently cutting prices on Kirkland Signature products, which enhances its competitive pricing advantage and is expected to further boost customer loyalty.
- AI Implementation: Costco is collaborating with leading AI companies to optimize product visibility in large language model searches; although current traffic is small, it is growing at triple-digit rates, indicating significant future potential in online advertising.
- International Expansion Plans: CEO Vachris aims to open over 30 new warehouses annually, targeting markets such as China, Japan, South Korea, Spain, and France, which is expected to significantly enhance the company's global market share and brand influence.
- Same-Day Delivery Service: Costco's same-day delivery service now averages under 45 minutes in the U.S. and has been launched in Spain and France, improving member satisfaction and likely attracting more high-spending members.
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- Pricing Strategy Continuity: Costco's third-quarter report highlighted price cuts on products like Kirkland Signature despite inflationary pressures, maintaining the pricing philosophy established by founder Jim Sinegal, which ensures customer loyalty and competitive market positioning.
- AI Implementation: New CEO Ron Vachris announced that Costco is collaborating with leading AI companies to enhance product visibility in large language model search results; although AI-driven traffic is currently small, it is growing at triple-digit rates, indicating significant potential.
- International Expansion Plans: Costco aims to open over 30 new warehouses annually, targeting markets such as China, Japan, South Korea, Spain, and France, which will enhance its global market penetration and customer base.
- Same-Day Delivery Service Enhancement: Costco has reduced its same-day delivery average to under 45 minutes in the U.S. and has rolled it out in Spain and France, improving customer satisfaction and further driving sales growth.
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- Stock Price Fluctuation: Costco (COST) stock experienced a rare dip during afternoon trading on June 2, 2026, indicating market concerns about its future performance, which could impact investor confidence.
- Market Reaction Analysis: Despite overall market stability, the decline in Costco's stock price may be linked to a slowdown in sales growth, prompting investors to closely monitor upcoming financial reports to assess the company's fundamentals.
- Investor Sentiment Shift: This stock price drop may lead some investors to reevaluate their holding strategies, particularly in the context of increasing competition in the retail sector, potentially affecting the company's long-term shareholder value.
- Future Outlook: Costco needs to implement effective measures to restore market confidence, which may include enhancing promotional activities and optimizing inventory management to address current market challenges and maintain growth momentum.
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