KMX vs COST: Which Stock is Better?
Side-by-side comparison of Carmax Inc and Costco Wholesale Corp in 2026
KMX
Carmax Inc
$41.84
COST
Costco Wholesale Corp
$1007.77
Key Metrics Comparison
| Metric | KMX | COST | Winner |
|---|---|---|---|
| Market Cap | $6.14B | $447.41B | COST |
| P/E Ratio | 13.72 | 54.06 | KMX |
| EPS (TTM) | $3.05 | $18.64 | COST |
| Revenue Growth | -0.1% | 0.1% | COST |
| Gross Margin | 12.4% | 12.9% | COST |
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Frequently Asked Questions
Is KMX or COST a better investment?
Comparing KMX and COST: Carmax Inc has a market cap of $6.14B while Costco Wholesale Corp has $447.41B. Both companies have their strengths - use our detailed metrics comparison to make an informed decision.
What is the difference between KMX and COST?
KMX (Carmax Inc) and COST (Costco Wholesale Corp) differ in valuation, growth rates, and profitability metrics. Our comparison shows which company leads in each category.
Which stock has better value: KMX or COST?
Based on P/E ratios, KMX trades at a lower multiple (13.7x vs 54.1x).
Which is growing faster: KMX or COST?
COST has higher revenue growth at 0.1% vs -0.1% for KMX.
Which company is more profitable: KMX or COST?
Costco Wholesale Corp (COST) has higher gross margins at 12.9% compared to 12.4% for KMX.
Which is the larger company: KMX or COST?
Costco Wholesale Corp (COST) is larger with a market cap of $447.41B compared to $6.14B for KMX.
Should I buy KMX or COST in 2026?
Both KMX and COST have investment merit. KMX trades at $41.84 while COST trades at $1007.77. Consider your investment goals, risk tolerance, and portfolio diversification before deciding. Our AI analysis tools can provide personalized insights.
What are the key differences between KMX and COST stock?
Key differences: Market Cap ($6.14B vs $447.41B), P/E Ratio (13.7x vs 54.1x), Revenue Growth (-0.1% vs 0.1%), Gross Margin (12.4% vs 12.9%).