TacticScaleWhat Martin Marietta Materials Does & How It Makes Money (MLM)
Updated October 2026 · reflects Martin Marietta Materials's latest reported financials
U.S. supplier of crushed stone, sand, gravel and heavy building materials. It earns most of its revenue selling aggregates and downstream products like concrete, asphalt and paving to customers building infrastructure, commercial buildings and homes.
How Martin Marietta Materials makes money
It earns most of its revenue selling aggregates and downstream products like concrete, asphalt and paving to customers building infrastructure, commercial buildings and homes. A smaller share comes from selling magnesia-based chemicals and dolomitic lime to steelmakers and other industrial customers.
What Martin Marietta Materials does
Martin Marietta Materials is a natural resource-based building materials company headquartered in Raleigh, North Carolina, founded in 1939. Its core business is aggregates (crushed stone, sand and gravel), the basic inputs for infrastructure, nonresidential and residential construction. It also serves the railroad, agricultural, utility and environmental industries. The company reports through East Group and West Group segments. Besides aggregates, Martin Marietta sells heavy-side building materials such as ready mixed concrete and asphalt, and provides paving products and services. A specialty unit makes magnesia-based chemicals and dolomitic lime, sold mainly for steel production and soil stabilization, with chemical uses that include flame retardants, wastewater treatment and pulp and paper production.
Products & services
- Crushed stone
- Sand and gravel
- Ready mixed concrete
- Asphalt and paving services
- Magnesia-based chemicals
- Dolomitic lime
What is Martin Marietta Materials worth?
On an owner-earnings DCF, Martin Marietta Materials's most-likely value is about $226 versus a recent price near $478 (53% above fair value). But TacticScale only calls a stock undervalued when the price sits below its conservative no-growth floor (~$113) with a margin of safety — so the honest verdict here is “Fairly priced — no edge.” Fair value earns its keep only at the extremes, not in the wide middle.
Price sits in the normal range — fair value isn't actionable here; it earns its keep only when price drops below the no-growth floor, or runs to roughly double the optimistic case.
⚠ High leverage — net debt is 5.9× annual cash flow. Net debt is subtracted from this fair value, but refinancing at higher rates, principal timing, and share dilution aren’t modeled — the equity can be worth far less if cash flow weakens.
⚠ Capital-intensive — this business reinvests heavily, so free cash flow runs well below its earnings. Fair value here is built on free cash flow, which understates owner earnings for reinvestment-heavy companies — read it as conservative.
Analysis, not advice. Fair value is a margin-of-safety estimate from a deterministic owner-earnings DCF, not a price target or recommendation. See the full breakdown →
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