Same industry, different fundamental ratios Long AZO: PE: 20.5 Net income growth: ~8% and flat Profit Margin: 11.5% and rising Return on Assets: 14.7% Long ORLY: PE: 27.5 Net income growth: ~15-20% and flat Profit Margin: 12% and rising Return on Assets: 14% and rising Short AAP: PE: 23.7 Net income growth: 6.8% and falling Profit Margin (TTM): 4.8% and falling Return on Assets: 5.8% and falling consistently every year for 4 years.