Martin Marietta Materials, Inc. (MLM) Stock

Martin Marietta Materials, Inc. (MLM) is a Materials stock trading at $535.04 (as of 2026-08-21), with a market capitalization of $32.14B and a trailing P/E of 13.1. Figures are sourced from first-party U.S. SEC EDGAR filings and market data.

Martin Marietta Materials, Inc. produces and supplies construction materials including aggregates (crushed stone, sand, and gravel), ready-mixed concrete and asphalt, paving products and related services, and Portland and specialty cement. It also manufactures magnesia-based chemicals and dolomitic lime for industrial and environmental uses, serving construction, railroad, agricultural, utility, and steel or soil-stabilization needs in the U.S. and internationally.

Understand Martin Marietta Materials, Inc.: how it makes money

Martin Marietta Materials supplies crushed stone, sand, and gravel aggregates, ready mixed concrete and asphalt, and cement products for construction and infrastructure projects, earning revenue from selling these building materials and related paving and services to customers in the U.S. and internationally.

The profit engine is selling heavy-side building materials (aggregates, ready mixed concrete, asphalt and cement products) into construction and infrastructure end markets through its geographically positioned East and West operations.

Revenue by segment (latest quarter)
East$0.8B
West$0.7B

Business quality (Weak): A focused, natural-resource building materials business with multiple product categories and clear regional operations, where performance is closely tied to activity in construction and infrastructure markets.

Valuation: At 14× earnings, MLM trades 56% below the Metal Mining average (32×). Note: one-time items can distort reported P/E.

Bull case

  • Broad product mix within building and infrastructure: The company offers aggregates, ready mixed concrete, asphalt and paving products and services, plus Portland and specialty cement, supporting multiple project types and end markets.
  • Coverage across construction and infrastructure-related industries: Its products are used not only in residential and nonresidential construction, but also in infrastructure projects and other industries such as railroads, agriculture, utilities, and environmental industries.

Bear case

  • Demand sensitivity to construction and infrastructure activity: Because the company supplies materials used in construction and infrastructure projects, slower project activity could reduce demand for its products and services.
  • Geographic business concentration: Operations are presented through East and West group revenues, so regional changes in construction and related demand could affect results.
Valuation — source: SEC EDGAR (first-party)
Price$535.04
Market Cap$32.14B
P/E Ratio13.1
EV / EBITDA18.9
Price / Book2.78
Price / Sales5.11
FCF Yield2.5%
DCF Value (model)$137.83
DCF Upside vs Price-74.2%
Profitability & Growth — source: SEC EDGAR
Revenue (TTM)$6.15B
Net Margin18.5%
Revenue Growth (YoY)7.5%
EPS Growth (YoY)-23.2%
FCF Growth (YoY)-107.7%
Financial Health — source: SEC EDGAR
Altman Z-Score3.44 (safe)
Piotroski F-Score7/9 (strong)
Valuation vs Sector & Industry
Stock P/E13.1
Sector P/E (Materials)25.9
Industry P/E (Metal Mining)26.7
vs Sector-49.5%
vs Industry-51.1%
Smart-Money Activity — SEC Form 4 / 13F / Congressional disclosures
Top Institutional HolderVANGUARD GROUP INC ($4.59B)
Institutional Holders Tracked10
Congressional Trades (recent)10
Company
SectorMaterials
IndustryMetal Mining
CEOC. Howard Nye
Employees9,400
CountryUS
IPO Date1994-02-17

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MLM earnings history · MLM institutional & insider holders · MLM KPIs & operating metrics · MLM financials · MLM investor presentations & press releases · MLM SEC filings · MLM peers · Congress trades · Insider trades · Short interest · Stock screener

Data as of 2026-08-21.

Figures sourced from U.S. Securities and Exchange Commission (SEC EDGAR) filings and market data. Not personalized investment advice.