ACA vs CAT vs MLM vs VMC

For growth investors, Arcosa, Inc.

(ACA) is the stronger pick with 12. 2% revenue growth year-over-year, versus 0. 1% for Martin Marietta Materials, Inc. (MLM). Arcosa, Inc. (ACA) offers the better valuation at 29. 3x trailing P/E (29. 1x forward), making it the more compelling value choice. Analysts rate Arcosa, Inc. (ACA) a "Buy" — based on 8 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, Arcosa, Inc.

(ACA) is the cheapest at 29. 3x versus Caterpillar Inc. at 47. 2x. On forward P/E, Vulcan Materials Company is actually cheaper at 29. 1x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Caterpillar Inc. wins at 1. 29x versus Martin Marietta Materials, Inc. 's 2. 84x — a reasonable growth-adjusted valuation.

Over the past 5 years, Caterpillar Inc.

(CAT) delivered a total return of +273. 6%, compared to +43. 2% for Vulcan Materials Company (VMC). Over 10 years, the gap is even starker: CAT returned +1219% versus VMC's +143. 0%. 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), Vulcan Materials Company (VMC) is the lower-risk stock at 0.

86β versus Caterpillar Inc. 's 1. 58β — meaning CAT is approximately 84% more volatile than VMC relative to the S&P 500. On balance sheet safety, Martin Marietta Materials, Inc. (MLM) carries a lower debt/equity ratio of 53% versus 2% for Caterpillar Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Arcosa, Inc.

(ACA) is pulling ahead at 12. 2% versus 0. 1% for Martin Marietta Materials, Inc. (MLM). On earnings-per-share growth, the picture is similar: Arcosa, Inc. grew EPS 122. 0% year-over-year, compared to -42. 0% for Martin Marietta Materials, Inc.. Over a 3-year CAGR, ACA leads at 8. 7% 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.

Martin Marietta Materials, Inc.

(MLM) is the more profitable company, earning 17. 4% net margin versus 7. 2% for Arcosa, Inc. — meaning it keeps 17. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MLM leads at 23. 3% versus 11. 8% for ACA. At the gross margin level — before operating expenses — CAT leads at 32. 3%, 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, Caterpillar Inc. (CAT) is the more undervalued stock at a PEG of 1. 29x versus Martin Marietta Materials, Inc. 's 2. 84x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Vulcan Materials Company (VMC) trades at 29. 1x forward P/E versus 36. 2x for Caterpillar Inc. — 7. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for MLM: 24. 8% to $697. 40.

All stocks in this comparison pay dividends.

Vulcan Materials Company (VMC) offers the highest yield at 0. 7%, versus 0. 2% for Arcosa, Inc. (ACA).

For long-horizon retirement investors, Caterpillar Inc.

(CAT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (0. 7% yield, +1219% 10Y return). Both have compounded well over 10 years (CAT: +1219%, ACA: +509. 7%), 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 (ACA (Industrials) and CAT (Industrials) and MLM (Basic Materials) and VMC (Basic Materials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

CAT, MLM, VMC pay a dividend while ACA does 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.