AZO vs MUSA vs ORLY vs WMT vs AAP

For growth investors, O'Reilly Automotive, Inc.

(ORLY) is the stronger pick with 6. 4% revenue growth year-over-year, versus -5. 4% for Advance Auto Parts, Inc. (AAP). Murphy USA Inc. (MUSA) offers the better valuation at 24. 1x trailing P/E (19. 8x forward), making it the more compelling value choice. Analysts rate AutoZone, Inc. (AZO) a "Buy" — based on 45 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Murphy USA Inc.

(MUSA) is the cheapest at 24. 1x versus Advance Auto Parts, Inc. at 78. 4x. On forward P/E, Murphy USA Inc. is actually cheaper at 19. 8x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Murphy USA Inc. wins at 1. 53x versus Walmart Inc. 's 4. 06x — a reasonable growth-adjusted valuation.

Over the past 5 years, Murphy USA Inc.

(MUSA) delivered a total return of +318. 2%, compared to -65. 4% for Advance Auto Parts, Inc. (AAP). Over 10 years, the gap is even starker: MUSA returned +803. 3% versus AAP's -52. 1%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Murphy USA Inc.

(MUSA) is the lower-risk stock at -0. 23β versus Advance Auto Parts, Inc. 's 1. 42β — meaning AAP is approximately -713% more volatile than MUSA relative to the S&P 500. On balance sheet safety, Walmart Inc. (WMT) carries a lower debt/equity ratio of 67% versus 5% for Murphy USA Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), O'Reilly Automotive, Inc.

(ORLY) is pulling ahead at 6. 4% versus -5. 4% for Advance Auto Parts, Inc. (AAP). On earnings-per-share growth, the picture is similar: Advance Auto Parts, Inc. grew EPS 113. 0% year-over-year, compared to -3. 1% for AutoZone, Inc.. Over a 3-year CAGR, ORLY leads at 7. 3% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

O'Reilly Automotive, Inc.

(ORLY) is the more profitable company, earning 14. 3% net margin versus 0. 5% for Advance Auto Parts, Inc. — meaning it keeps 14. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ORLY leads at 19. 5% versus 1. 9% for AAP. At the gross margin level — before operating expenses — AZO leads at 52. 6%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Murphy USA Inc. (MUSA) is the more undervalued stock at a PEG of 1. 53x versus Walmart Inc. 's 4. 06x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Murphy USA Inc. (MUSA) trades at 19. 8x forward P/E versus 44. 7x for Walmart Inc. — 24. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AZO: 19. 2% to $4235. 71.

In this comparison, AAP (1.

7% yield), WMT (0. 7% yield), MUSA (0. 4% yield) pay a dividend. AZO, ORLY do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Murphy USA Inc.

(MUSA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -0. 23), +803. 3% 10Y return). Both have compounded well over 10 years (MUSA: +803. 3%, AAP: -52. 1%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (AZO (Consumer Cyclical) and MUSA (Consumer Cyclical) and ORLY (Consumer Cyclical) and WMT (Consumer Defensive) and AAP (Consumer Cyclical)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

WMT, AAP pay a dividend while AZO, MUSA, ORLY do not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.