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Martin Marietta MaterialsMIL:1MLM 92 Debt-to-Equity is 0.50 as of Mar. 2026, which is 18% below its 10-year median of 0.61. GuruFocus rates MIL:1MLM with a GF Score™ of 92/100 and a GF Value™ of €653.58. The stock has 3 warning signs investors should review. Among 366 Building Materials companies, Martin Marietta Materials ranks worse than 61.75% on this metric.
A high debt to equity ratio generally means that a company has been aggressive in financing its growth with debt. This can result in volatile earnings as a result of the additional interest expense.
The historical rank and industry rank for Martin Marietta Materials's Debt-to-Equity or its related term are showing as below:
MIL:1MLM'
s Debt-to-Equity Range Over the Past 10 Years
Min: 0.4 Med: 0.61 Max: 0.87
Current: 0.5
During the past 13 years, the highest Debt-to-Equity Ratio of Martin Marietta Materials was 0.87. The lowest was 0.40. And the median was 0.61.
MIL:1MLM's Debt-to-Equity is ranked worse than 61.75% of 366
companies
in the Building Materials industry
Industry Median: 0.355
vs MIL:1MLM: 0.50
Martin Marietta Materials (MIL:1MLM) Debt-to-Equity Explanation
Because a company can increase its ROE % by having more financial leverage, it is important to watch the leverage ratio when investing in high ROE % companies.
Martin Marietta Materials Debt-to-Equity Related Terms
Martin Marietta Materials Debt-to-Equity Historical Data
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
MIL:1MLM vs VMC, JHX, EXP: Debt-to-Equity Comparison
For the Building Materials subindustry, Martin Marietta Materials's Debt-to-Equity, along with its competitors' market caps and Debt-to-Equity data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Martin Marietta Materials Debt-to-Equity vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Martin Marietta Materials's Debt-to-Equity distribution charts can be found below:
* The bar in red indicates where Martin Marietta Materials's Debt-to-Equity falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Martin Marietta Materials (MIL:1MLM) has a Debt-to-Equity of 0.50 as of Mar. 2026. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Martin Marietta Materials and its competitors. This is 18% below median its historical median of 0.61. Over the past decade, Martin Marietta Materials' Debt-to-Equity has ranged from 0.40 to 0.87. According to the industry distribution chart, Martin Marietta Materials ranks #226 out of 366 companies in the Building Materials industry, placing it in the top 61.7%.
Is Martin Marietta Materials' Debt-to-Equity too high?
Martin Marietta Materials' current Debt-to-Equity of 0.50 is 18% below median its 10-year median of 0.61. Over the past 10 years, this metric has ranged from a low of 0.40 to a high of 0.87. The Building Materials industry median Debt-to-Equity is 0.36. Martin Marietta Materials' value of 0.50 is 40.8% above this industry median. Based on the distribution chart, Martin Marietta Materials ranks #226 out of 366 companies in the Building Materials industry, which is below the industry midpoint. Overall, Martin Marietta Materials has a GF Score™ of 92/100, reflecting its overall financial health beyond just this single metric.
How does Martin Marietta Materials' Debt-to-Equity compare to VMC and JHX?
According to the Building Materials industry distribution chart, Martin Marietta Materials ranks #226 out of 366 companies for Debt-to-Equity. This places Martin Marietta Materials in the lower half of its industry. The industry median Debt-to-Equity is 0.36. Martin Marietta Materials' value of 0.50 is 40.8% above this benchmark. Historically, Martin Marietta Materials' own Debt-to-Equity has ranged from 0.40 to 0.87 over the past decade. While the company's 10-year median is 0.61 vs. the industry median of 0.36, Martin Marietta Materials has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Debt-to-Equity for a Building Materials company?
The median Debt-to-Equity among Building Materials companies is 0.36, based on 366 companies in the industry. Companies in the top quartile (top 25%) have a Debt-to-Equity significantly above this median, while those in the bottom quartile fall well below. However, Debt-to-Equity should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Martin Marietta Materials's current Debt-to-Equity of 0.50 is 40.8% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Debt-to-Equity mean?
A high Debt-to-Equity can signal that a stock is expensive relative to its fundamentals. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Martin Marietta Materials and its competitors. For the Building Materials industry, the median Debt-to-Equity is 0.36 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Martin Marietta Materials's current Debt-to-Equity is 0.50, which is 18% below median its own 10-year median of 0.61. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Martin Marietta Materials stock overvalued right now?
Martin Marietta Materials (MIL:1MLM) has a current Debt-to-Equity of 0.50. The stock's GF Value™ is €653.58, compared to a current price of €549.50 — trading 15.9% below its estimated fair value. The current Debt-to-Equity is 0.50, which is 18% below median its 10-year median of 0.61 and 40.8% above the Building Materials industry median of 0.36. Martin Marietta Materials' overall GF Score™ is 92/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Debt-to-Equity calculated?
Debt-to-Equity is calculated from a company's financial statements. For Martin Marietta Materials (MIL:1MLM), the current Debt-to-Equity is 0.50 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Martin Marietta Materials (MIL:1MLM) Overvalued in 2026?
Based on GuruFocus' analysis, Martin Marietta Materials stock appears to be undervalued.
The current stock price of €549.50 is trading 15.9% below its estimated GF Value™ of €653.58.
Key valuation signals for MIL:1MLM:
Debt-to-Equity: 0.50 (18% below median its 10-year median of 0.61)
GF Value™: €653.58 vs. price of €549.50 (15.9% below fair value)
Industry Position: 40.8% above the Building Materials median (#226 of 366)
No single metric tells the full story. See the MIL:1MLM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Martin Marietta Materials is one of the United States' largest producer of construction aggregates (crushed stone, sand, and gravel). In 2024, Martin Marietta sold 191 million tons of aggregates. Martin Marietta's most important markets include Texas, North Carolina, Colorado, California, and Georgia, accounting for most of its sales. The company also uses its aggregates in its asphalt and ready-mixed concrete businesses. Martin's magnesia specialties business produces magnesia-based chemical products and dolomitic lime.
92GF Score
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