MLM vs NUE: Which Is the Better Buy in 2026?
Last updated October 2026
Short answer
NUE is the larger of the two ($58.15B market cap): the incumbent the market prices for continued execution (12.33x forward earnings, beta 1.85). MLM is the smaller challenger ($35.57B), actually pricier on forward earnings (22.87x): more room to run, but more to prove. The real question is which set of drivers you believe, and whether owning one (or both) leaves you over-concentrated.
MLM vs NUE: the tie-breaker metrics
Same yardstick, side by side (as of October 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.
| Metric | MLM | NUE | What it tells you |
|---|---|---|---|
| Market cap | $35.57B | $58.15B | Size. The larger name is the incumbent; the smaller has more room to grow and more to prove. |
| Forward P/E | 22.87 | 12.33 | Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up. |
| Trailing P/E | 32.48 | 20.44 | Valuation on the last 12 months. A big drop from trailing to forward means the market expects earnings to jump, so more growth is already in the price. |
| Beta | 1.09 | 1.85 | Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through. |
| Price vs 52-week range | 15% of range | 84% of range | Where today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why. |
| Price / book | 2.60 | 2.63 | How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price. |
Reading it: NUE is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.
Before you buy: how MLM and NUE affect your concentration
The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. MLM and NUE share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.
This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined MLM and NUE exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.
What does Martin Marietta Materials (MLM) do?
Martin Marietta Materials is the second-largest construction aggregates producer in the United States, behind Vulcan Materials. The aggregates business model is identical to Vulcan: heavy aggregates products with high transport costs create local pricing power within each quarry's service area. Martin Marietta operates hundreds of aggregates facilities across the US with concentration in Texas, Colorado, the Carolinas and other high-growth states, and 2026 added quarries in Virginia, Missouri, Kansas, British Columbia, Minnesota and along the I-70 corridor.
What does Nucor (NUE) do?
Nucor is the largest steel producer in the United States and one of the largest in North America. The company uses electric arc furnace (EAF) technology that melts recycled scrap steel rather than traditional blast furnaces that smelt iron ore. EAF steel production has significantly lower carbon emissions than blast furnace steel and is generally lower-cost in North America given the abundance of scrap and the cost of natural gas relative to coking coal.
MLM vs NUE: how do they differ?
Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.
- MLM drivers: Federal infrastructure tailwind; Lime and specialty minerals through Lhoist North America.
- NUE drivers: Infrastructure and reshoring demand; Carbon-advantaged production.
Which fits which kind of investor
A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Construction cycle volatility. For NUE, steel cycle volatility: the same spreads that lifted 2026 earnings can compress quickly, and analysts already model Q4 2026 EPS slightly below Q3.
MLM or NUE: which should you pick?
Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick MLM if you believe its drivers more; NUE if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the MLM and NUE guides.
MLM vs NUE: the full fundamentals
MLM. Martin Marietta trades at about 32.5x trailing and 23x forward earnings, a premium that has compressed as the shares fell about 21% this year while 2026 earnings are expected to dip about 9% before rebounding about 25% in 2027 with Lhoist included. The 24 covering analysts hold a buy consensus with a mean target near $634, though most have trimmed targets since late September.
NUE. Nucor's trailing P/E of about 21 looks high for steel because it still includes the weak second half of 2025; on 2026-2027 estimates the forward multiple is closer to 12.5, typical of a cyclical near an earnings upswing. The premium versus pure commodity peers comes from EAF cost structure, operating discipline through cycles, the 51+ year dividend growth streak, and infrastructure/reshoring exposure. Q3 2026 results are due October 26, 2026, with consensus EPS of about $5.83 on revenue of about $10.8 billion.
Headline figures (approximate, October 2026): MLM shows revenue (ttm) ~$6.7 billion; Q2 2026 revenue up 21% year over year to a record ~$1.95 billion, operating margin ~20%, eps (ttm) ~$15.42; forward ~$21.90, p/e ~32.5x trailing, ~23x forward; NUE shows revenue (ttm) ~$36 billion (+23% YoY in Q2 2026), operating margin ~16% (cyclical), net income (ttm) ~$2.9 billion, eps (ttm / 2026 consensus) ~$12.54 / ~$19.49.
The bottom line: MLM vs NUE
MLM and NUE are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined MLM and NUE exposure against your real portfolio. It is not an investment adviser.
Wondering how MLM or NUE fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.
Investing in Martin Marietta Materials with AI
Connect the broker you already use and ask Walnut's AI how MLM fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is the difference between MLM and NUE?
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Martin Marietta Materials is the second-largest construction aggregates producer in the United States, behind Vulcan Materials. Nucor is the largest steel producer in the United States and one of the largest in North America. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.
Is MLM or NUE the better stock?
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Neither is universally better. NUE is the larger incumbent; MLM is the smaller challenger and looks pricier on forward earnings. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.
Which is cheaper, MLM or NUE?
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On forward P/E (as of October 2026), MLM trades at 22.87x and NUE at 12.33x, so NUE is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.
Should you own both MLM and NUE?
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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.
What are the risks of MLM vs NUE?
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MLM: Construction cycle volatility. Energy costs affect operating margins. Integration risk from four deals in under a year, and much higher debt (about $6.3 billion before the $7 billion Lhoist cash payment was fully reflected). Purchase accounting dents reported margins: aggregates gross profit per ton fell 17% in the second quarter, partly from a $52 million acquired-inventory charge. Lime ties part of the business to steel and industrial cycles. Reserve permitting is increasingly difficult. Analysts cut price targets through September and October 2026 (RBC to $530, Truist to $625, Citigroup to $610), and the stock trades about 30% below its 52-week high of $711. NUE: Steel cycle volatility: the same spreads that lifted 2026 earnings can compress quickly, and analysts already model Q4 2026 EPS slightly below Q3. Scrap input cost fluctuations. Trade policy (tariffs and quotas) affects pricing dynamics; in mid-October 2026 renewed doubt about steel tariffs pushed Cleveland-Cliffs, Nucor and Steel Dynamics lower. Competition from imports during downturns. Valuation risk is higher after the stock's roughly 96% one-year gain, with a trailing P/E near 21 compared with about 13 in early 2026.
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Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell MLM or NUE; figures are approximate and dated (as of October 2026). Verify current data before investing.