Costco Wholesale has the GF Score of 97, which implies that the company
might have
Highest outperformance potential.
The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.
GF Score takes following five key aspects into consideration:
Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.
Based on research and backtesting result, GuruFocus believes Costco Wholesale
might have
Highest outperformance potential.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
Costco Wholesale (NAS:COST) GF Score Explanation
Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:
GF Score
Performance Potential and All-in-One Screener Examples (1)
(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.
Costco Wholesale GF Score Related Terms
COST vs TGT, DG, DLTR: GF Score Comparison
For the Discount Stores subindustry, Costco Wholesale's GF Score, along with its competitors' market caps and GF Score data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Costco Wholesale GF Score vs Retail - Defensive Industry
For the Retail - Defensive industry and Consumer Defensive sector, Costco Wholesale's GF Score distribution charts can be found below:
* The bar in red indicates where Costco Wholesale's GF Score falls into.
Costco Wholesale (COST) has a GF Score of 97 as of Jun. 27, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Costco Wholesale and its competitors. This is near median its historical median of 92.00. Over the past decade, Costco Wholesale's GF Score has ranged from 80.00 to 98.00.
Is Costco Wholesale's GF Score too high?
Costco Wholesale's current GF Score of 97 is near median its 10-year median of 92.00. Over the past 10 years, this metric has ranged from a low of 80.00 to a high of 98.00. Overall, Costco Wholesale has a GF Score™ of 97/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Costco Wholesale's GF Score compare to TGT and DG?
Costco Wholesale's GF Score of 97 can be compared against companies in the Retail - Defensive industry. Historically, Costco Wholesale's own GF Score has ranged from 80.00 to 98.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for a Retail - Defensive company?
A good GF Score depends on the Retail - Defensive industry context. However, GF Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Costco Wholesale and its competitors. Costco Wholesale's current GF Score is 97, which is near median its own 10-year median of 92.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Costco Wholesale stock overvalued right now?
Based on GuruFocus' analysis, Costco Wholesale (COST) is currently considered Fairly Valued. The stock's GF Value™ is $1,015.53, compared to a current price of $952.54 — trading 6.2% below its estimated fair value. The current GF Score is 97, which is near median its 10-year median of 92.00. Costco Wholesale's overall GF Score™ is 97/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For Costco Wholesale (COST), the current GF Score is 97 as of Jun. 27, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Costco Wholesale (COST) Overvalued in 2026?
Based on GuruFocus' analysis, Costco Wholesale stock appears to be undervalued.
The current stock price of $952.54 is trading 6.2% below its estimated GF Value™ of $1,015.53.
GuruFocus considers Costco Wholesale to be Fairly Valued.
Key valuation signals for COST:
GF Score: 97 (near median its 10-year median of 92.00)
GF Value™: $1,015.53 vs. price of $952.54 (6.2% below fair value)
No single metric tells the full story. See the COST stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Founded in 1983, Costco Wholesale now operates a global chain of membership-based warehouse clubs, delivering high-quality goods and services at consistently low prices. As of its most recent fiscal year, Costco operated approximately 910 warehouses, serving more than 80 million members across its three geographic segments: Costco US (approximately 73% of total revenue), Costco Canada (13%), and Costco International (14%).Costco's core value proposition—quality products at unbeatable prices—has yielded consistently strong member renewal rates (93% in the US and Canada and nearly 90% internationally). About 55% of Costco's fiscal 2025 revenue came from its grocery offerings, and another 25% from general merchandise.
97GF Score
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