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Martin Marietta Materials Inc. (MLM) Stock Fundamental Analysis & AI Rating 2026

MLM NYSE Mining & Quarrying of Nonmetallic Minerals (No Fuels) NC CIK: 0000916076
Updated This Month • Analysis: Mar 19, 2026 • SEC Data: 2025-12-31
📅 Next earnings: Apr 29, 2026 (in 13 days) • TBD ET • EPS est. $2.30 (vs $1.90 prior year) • All earnings →
Combined AI Rating
BUY
83% Confidence
AGREEMENT
STRONG BUY
82% Conf
BUY
84% Conf

📊 MLM Key Takeaways

Revenue: $6.2B
Net Margin: 18.5%
Free Cash Flow: $978.0M
Current Ratio: 3.57x
Debt/Equity: 0.53x
EPS: $18.77
AI Rating: STRONG BUY with 82% confidence
Martin Marietta Materials Inc. (MLM) receives a BUY rating with 83% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $6.2B, net profit margin of 18.5%, and return on equity (ROE) of 11.3%, Martin Marietta Materials Inc. demonstrates strong fundamentals in the Materials sector. Below is our complete MLM stock analysis for 2026.

Is Martin Marietta Materials Inc. (MLM) a Good Investment?

Claude

Martin Marietta Materials demonstrates exceptional financial health with industry-leading profitability margins (30.7% gross, 23.4% operating) and robust cash generation ($978M FCF). Strong revenue growth of 8.6% YoY combined with solid balance sheet metrics (0.53x debt/equity, 6.2x interest coverage) and substantial free cash flow conversion (15.9% FCF margin) indicate a well-managed, cash-generative business capable of sustaining shareholder returns.

ChatGPT

Martin Marietta Materials shows strong core fundamentals with healthy revenue growth, high operating and net margins, and robust free cash flow generation. The balance sheet is solid overall, with good liquidity and manageable leverage, which supports resilience in a capital-intensive business. The main caution is that profit growth has not kept pace with revenue, and the sharp EPS decline suggests weaker per-share growth quality or potential reporting distortions that need monitoring.

Why Buy Martin Marietta Materials Inc. Stock? MLM Key Strengths

Claude
  • + Exceptional profitability with 18.5% net margin demonstrating operational efficiency and pricing power in nonmetallic minerals
  • + Strong free cash flow generation of $978M with 15.9% FCF margin supporting capital investments and shareholder distributions
  • + Solid liquidity position with 3.57x current ratio and conservative leverage (0.53x debt/equity) providing financial flexibility
  • + Revenue growth of 8.6% YoY indicates healthy demand for construction aggregates and related products
  • + Robust interest coverage of 6.2x demonstrates comfortable debt servicing capacity
ChatGPT
  • + Strong profitability, including 30.7% gross margin and 23.4% operating margin
  • + Robust cash generation with $1.78B operating cash flow and $978M free cash flow
  • + Healthy financial position with 3.57x current ratio and moderate 0.53x debt-to-equity

MLM Stock Risks: Martin Marietta Materials Inc. Investment Risks

Claude
  • ! EPS declined 42.1% YoY despite flat net income growth, suggesting significant share count reduction or non-operational headwinds that warrant investigation
  • ! Minimal cash position of $67M relative to $18.7B in assets indicates heavy reliance on operating cash flows and credit facilities
  • ! Cyclical industry exposure sensitive to construction spending and economic downturns; vulnerability to demand disruption
  • ! High capital intensity with $807M capex (13% of revenue) required to maintain and grow asset base
  • ! 21 Form 4 insider filings in 90 days warrants monitoring for directional trading patterns or management confidence signals
ChatGPT
  • ! Net income was flat despite 8.6% revenue growth, indicating margin or cost pressure below the top line
  • ! Diluted EPS fell 42.1% year over year, raising concern about per-share earnings quality or unusual items
  • ! Business remains capital-intensive, with $807M of capex and $5.32B of long-term debt

Key Metrics to Watch

Claude
  • * Operating cash flow trend and free cash flow conversion rates as indicators of cash generation quality
  • * Debt/equity ratio movement to monitor financial leverage management and debt reduction progress
  • * Gross margin sustainability amid input cost volatility and pricing dynamics in aggregates market
  • * Capital expenditure efficiency and return on invested capital given high capex requirements
  • * Revenue growth sustainability relative to construction spending cycles and economic indicators
ChatGPT
  • * Operating margin and net income growth versus revenue growth
  • * Free cash flow after capital expenditures and interest coverage

Martin Marietta Materials Inc. (MLM) Financial Metrics & Key Ratios

Revenue
$6.2B
Net Income
$1.1B
EPS (Diluted)
$18.77
Free Cash Flow
$978.0M
Total Assets
$18.7B
Cash Position
$67.0M

💡 AI Analyst Insight

Strong liquidity with a 3.57x current ratio provides a solid financial cushion.

MLM Profit Margin, ROE & Profitability Analysis

Gross Margin 30.7%
Operating Margin 23.4%
Net Margin 18.5%
ROE 11.3%
ROA 6.1%
FCF Margin 15.9%

MLM vs Materials Sector: How Martin Marietta Materials Inc. Compares

How Martin Marietta Materials Inc. compares to Materials sector averages

Net Margin
MLM 18.5%
vs
Sector Avg 10.0%
MLM Sector
ROE
MLM 11.3%
vs
Sector Avg 14.0%
MLM Sector
Current Ratio
MLM 3.6x
vs
Sector Avg 1.6x
MLM Sector
Debt/Equity
MLM 0.5x
vs
Sector Avg 0.6x
MLM Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Martin Marietta Materials Inc. Stock Overvalued? MLM Valuation Analysis 2026

Based on fundamental analysis, Martin Marietta Materials Inc. has mixed fundamental signals relative to the Materials sector in 2026.

Return on Equity
11.3%
Sector avg: 14%
Net Profit Margin
18.5%
Sector avg: 10%
Revenue Growth
N/A
Year-over-year
Debt/Equity
0.53x
Sector avg: 0.6x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Martin Marietta Materials Inc. Balance Sheet: MLM Debt, Cash & Liquidity

Current Ratio
3.57x
Quick Ratio
2.36x
Debt/Equity
0.53x
Debt/Assets
46.4%
Interest Coverage
6.25x
Long-term Debt
$5.3B

MLM Revenue & Earnings Growth: 5-Year Financial Trend

MLM 5-year financial data: Year 2021: Revenue $5.4B, Net Income $611.9M, EPS $9.74. Year 2022: Revenue $6.2B, Net Income $721.0M, EPS $11.54. Year 2023: Revenue $6.8B, Net Income $702.5M, EPS $11.22. Year 2024: Revenue $6.8B, Net Income $867.0M, EPS $13.87. Year 2025: Revenue $6.2B, Net Income $1.2B, EPS $18.82.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Martin Marietta Materials Inc.'s revenue has grown significantly by 14% over the 5-year period, indicating strong business expansion. The most recent EPS of $18.82 reflects profitable operations.

MLM Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
15.9%
Free cash flow / Revenue

MLM Quarterly Earnings & Performance

Quarterly financial performance data for Martin Marietta Materials Inc. including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q3 2025 $1.6B $363.0M $5.91
Q2 2025 $1.8B $294.0M $4.76
Q1 2025 $1.3B $116.0M $1.90
Q3 2024 $1.9B $363.0M $5.91
Q2 2024 $1.8B $294.0M $4.76
Q1 2024 $1.3B $121.0M $1.95
Q3 2023 $1.8B $295.3M $4.73
Q2 2023 $1.6B $348.3M $5.61

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

Martin Marietta Materials Inc. Dividends, Buybacks & Capital Allocation

Operating Cash Flow
$1.8B
Cash generated from operations
Stock Buybacks
$450.0M
Shares repurchased (TTM)
Capital Expenditures
$807.0M
Investment in assets
Dividends Paid
$197.0M
Returned to shareholders

MLM SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Martin Marietta Materials Inc. (CIK: 0000916076)

📋 Recent SEC Filings

Date Form Document Action
Apr 15, 2026 DEF 14A d28378ddef14a.htm View →
Mar 3, 2026 4 xslF345X05/form4.xml View →
Mar 3, 2026 4 xslF345X05/form4.xml View →
Mar 3, 2026 4 xslF345X05/form4.xml View →
Mar 3, 2026 4 xslF345X05/form4.xml View →

Frequently Asked Questions about MLM

What is the AI rating for MLM?

Martin Marietta Materials Inc. (MLM) has a Combined AI Rating of BUY from Claude (STRONG BUY) and ChatGPT (BUY) with 83% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are MLM's key strengths?

Claude: Exceptional profitability with 18.5% net margin demonstrating operational efficiency and pricing power in nonmetallic minerals. Strong free cash flow generation of $978M with 15.9% FCF margin supporting capital investments and shareholder distributions. ChatGPT: Strong profitability, including 30.7% gross margin and 23.4% operating margin. Robust cash generation with $1.78B operating cash flow and $978M free cash flow.

What are the risks of investing in MLM?

Claude: EPS declined 42.1% YoY despite flat net income growth, suggesting significant share count reduction or non-operational headwinds that warrant investigation. Minimal cash position of $67M relative to $18.7B in assets indicates heavy reliance on operating cash flows and credit facilities. ChatGPT: Net income was flat despite 8.6% revenue growth, indicating margin or cost pressure below the top line. Diluted EPS fell 42.1% year over year, raising concern about per-share earnings quality or unusual items.

What is MLM's revenue and growth?

Martin Marietta Materials Inc. reported revenue of $6.2B.

Does MLM pay dividends?

Martin Marietta Materials Inc. pays dividends, with $197.0M distributed to shareholders in the trailing twelve months.

Where can I find MLM SEC filings?

Official SEC filings for Martin Marietta Materials Inc. (CIK: 0000916076) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is MLM's EPS?

Martin Marietta Materials Inc. has a diluted EPS of $18.77.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is MLM a good stock to buy right now?

Based on our AI fundamental analysis in April 2026, Martin Marietta Materials Inc. has a BUY rating with 83% confidence. The AI analysis suggests favorable fundamentals based on SEC filings. This is not investment advice.

Is MLM stock overvalued or undervalued?

Valuation metrics for MLM: ROE of 11.3% (sector avg: 14%), net margin of 18.5% (sector avg: 10%). Compare these metrics with sector averages to assess valuation.

Should I buy MLM stock in 2026?

Our dual AI analysis gives Martin Marietta Materials Inc. a combined BUY rating for 2026. Revenue is data pending, with profitability above sector average. Always conduct your own research.

What is MLM's free cash flow?

Martin Marietta Materials Inc.'s operating cash flow is $1.8B, with capital expenditures of $807.0M. FCF margin is 15.9%.

How does MLM compare to other Materials stocks?

Vs Materials sector averages: Net margin 18.5% (avg: 10%), ROE 11.3% (avg: 14%), current ratio 3.57 (avg: 1.6).

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: Mar 19, 2026 | Data as of: 2025-12-31 | Powered by Claude AI