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MARTIN MARIETTA MATERIALS INC (MLM)

MARTIN MARIETTA MATERIALS INC (MLM) stock — the fundamentals (P/E, market cap, valuation) and every material event, decoded in plain English.

MARTIN MARIETTA MATERIALS INC (MLM) stock — financials & valuation

Key numbers for MARTIN MARIETTA MATERIALS INC (MLM): P/E ratio, market cap, profit margins, returns, and whether the stock looks cheap or expensive versus its own 5-year range.

AllSight quality score: 47/100 — a percentile rank of MARTIN MARIETTA MATERIALS INC’s fundamentals against Mining & Energy peers, weakest on valuation. A quality ranking, not a price prediction.

Market cap$34.0B
P / E13.8×
P / S5.1×
EV / EBITDA18.9×
Gross margin28.2%
Operating margin20.8%
Net margin36.7%
Return on equity21.3%
ROIC6.4%
Revenue growth14.8%
Debt / equity0.5×
Dividend yield0.6%

Is MARTIN MARIETTA MATERIALS INC overvalued? P/E looks undervalued vs its 5-year range; P/S looks fair vs its 5-year range; EV/EBITDA looks fair vs its 5-year range; P/B looks undervalued vs its 5-year range.

Independent of the events above — derived from MARTIN MARIETTA MATERIALS INC’s own financial statements and shown as context, never as advice.

Sep 16, 2026Debt refinanced
Martin Marietta extends $500M receivables facility as acquisition financing needs grow
Aug 24, 2026$13.5B acquisition
Martin Marietta closes $13.5B Lhoist deal, but leaves 2026 guidance unchanged
Aug 18, 2026$1.5B revolving facility
Martin Marietta replaces revolver with $1.5B facility ahead of Lhoist closing
Aug 14, 2026$5.5B debt issuance
The Lhoist deal is funded—but MLM is adding $7B of debt
Aug 12, 2026Debt priced
The Lhoist deal now carries a $303.5 million annual bond coupon
Aug 10, 2026
SEC-ready target financials reinforce Lhoist’s strong earnings profile
Aug 5, 2026
All regulatory hurdles cleared; Lhoist deal now targets a third-quarter close
Aug 4, 2026
New CFO pay package formalizes succession, with no operating update.
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