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Martin Marietta Materials key statistics and ratios

In fiscal 2025, Martin Marietta Materials had return on equity of 11.7%, an operating margin of 23.4%, debt equal to 53.1% of equity and a current ratio of 3.57. Each ratio below is calculated from the figures on its income statement, balance sheet and cash flow pages.

Financial ratios

US$ thousands unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

Fiscal year2009Dec 20092010Dec 20102011Dec 20112012Dec 20122013Dec 20132014Dec 20142015Dec 20152016Dec 20162017Dec 20172018Dec 20182019Dec 20192020Dec 20202021Dec 20212022Dec 20222023Dec 20232024Dec 20242025Dec 2025LTMJun 2026
Gross margin21.1%19.5%17.6%16.1%16.9%17.7%20.5%23.9%24.5%22.8%24.9%26.5%24.9%23.1%29.8%28.9%30.7%28.2%
Operating margin11.6%12.0%9.4%7.7%10.1%10.6%14.0%17.7%17.7%16.3%18.7%21.3%18.0%19.6%22.8%43.8%23.4%20.6%
Net margin5.4%5.9%4.8%4.2%5.6%5.3%8.2%11.1%18.0%11.1%12.9%15.2%13.0%14.1%20.0%35.2%18.5%36.7%
Free-cash-flow margin11.4%8.1%6.1%3.5%7.1%5.1%7.4%7.9%6.2%7.8%12.1%14.6%13.2%8.3%15.0%10.7%15.9%12.1%
Return on equity6.3%7.0%5.8%6.0%8.2%5.3%6.9%10.4%16.2%9.8%11.9%12.8%11.3%12.7%15.4%22.8%11.7%22.8%
Return on assets2.6%3.1%2.6%2.7%3.8%3.0%4.1%6.0%8.8%5.1%6.2%7.0%5.6%5.9%7.8%12.0%6.2%12.3%
Asset turnover0.490.520.550.640.680.570.500.540.490.460.480.460.430.420.390.340.330.33
Current ratio2.291.813.794.043.592.632.951.993.791.741.703.342.691.993.352.443.571.41
Debt to equity91.5%72.3%75.2%74.3%67.0%36.4%38.7%40.7%64.7%63.1%51.8%44.6%78.1%70.3%54.1%57.3%53.1%51.5%
Interest cover (operating income ÷ interest)2.5x2.9x2.7x2.9x4.1x4.8x6.5x8.3x7.7x5.0x6.8x8.5x6.8x7.1x8.1x14.7x6.2x5.9x
Effective tax rate23.5%23.8%20.9%16.7%26.8%38.1%30.2%29.9%−15.3%18.3%18.2%18.9%17.9%21.5%19.1%23.2%19.2%20.3%
R&D as % of revenue0.0%0.0%————————————————
SG&A as % of revenue8.6%7.9%7.2%6.8%7.0%5.7%6.0%6.3%6.6%6.6%6.4%6.5%6.5%6.4%7.3%7.6%7.2%6.9%
Capital spending as % of revenue8.8%8.2%9.1%7.4%7.2%7.8%9.0%10.1%10.3%8.9%8.3%7.6%7.8%7.8%11.1%15.1%13.1%10.6%
Free cash flow ÷ net income209.6%138.0%125.9%84.8%126.7%96.1%90.9%70.9%34.7%70.0%93.6%95.8%101.7%58.7%75.1%30.3%86.0%33.0%
Dividends ÷ net income83.3%75.8%89.4%87.3%61.1%58.7%37.2%24.7%15.3%24.8%21.2%19.5%21.0%18.5%14.9%9.5%17.3%8.2%
Dividends and buybacks ÷ free cash flow39.7%54.9%71.0%102.9%48.3%61.1%239.1%120.7%84.5%65.9%39.8%27.6%20.7%60.9%36.9%105.8%66.2%49.6%

Returns use average equity or assets over the year. Return on equity is left blank when equity is negative or so small that the ratio says nothing (above ±200%); interest cover is left blank above 200 times. Price-based ratios such as P/E are on the valuation page.

Financial health

4 of 7 checks passed · June 30, 2026
What it owns · $21.3bn
Short-term assets $2.4bnLonger-term assets $18.9bn
What it owes, and who funded it · $21.3bn
Short-term liabilities $1.7bnLonger-term liabilities $8.0bnShareholders' equity $11.5bn
  • Short-term assets cover short-term liabilities $2.4bn of assets due within a year against $1.7bn of liabilities due within a year.
  • Short-term assets cover long-term liabilities $2.4bn short-term assets against $8.0bn of longer-dated liabilities.
  • More cash than debt $112m of cash against $6.0bn of debt.
  • Debt below 40% of shareholders' equity Debt is 52% of equity.
  • Debt burden no higher than five years ago Debt to equity moved from 78% to 52% over five years.
  • A year's operating cash flow covers at least 20% of debt $1.5bn of operating cash flow against $6.0bn of debt.
  • Operating profit covers interest at least five times over Operating income of $1.4bn against $232m of interest.

From Martin Marietta Materials's latest balance sheet as filed. Checks are fixed, documented rules (methodology), counted only where the company reports the figures — a dot means the filing doesn't break the item out. Descriptions of reported data, not advice.

Moat

65 /100

Moderate moat

How hard Martin Marietta Materials's competitive advantage looks for rivals to wear away, judged from 10 years of its own filings: returns on capital, pricing power, profit durability, cash conversion and discipline.

  • Returns on capital 7 / 20

    Cash operating profit has been a median 6.8% of total assets over 10 years.

  • Pricing power 9 / 20

    Gross margin has been a median 25.8%, moving by 2.5 percentage points (standard deviation) across 10 years.

  • Durability 16 / 20

    Operating margin has been a median 19.7%; its worst year was 16.7%.

  • Cash conversion 15 / 20

    Free cash flow was positive in 10 of 10 years, at a median 9.8% of revenue.

  • Discipline 18 / 20

    The diluted share count fell 3.3% over five years; stock-based pay has been a median 0.7% of revenue.

AI disruption exposure: Low. In this industry, the business rests on physical assets, regulated networks or products AI itself depends on.

A rules-based reading of reported figures, not a forecast and not investment advice. How the score is built: methodology.

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Figures from Martin Marietta Materials's SEC filings (10-K and 10-Q), retrieved October 20, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to Martin Marietta Materials.