CRH vs MLM: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 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.

Reading it: CRH 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.

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. CRH and MLM 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 CRH and MLM 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.

CRH plc is a global building materials group that redomiciled its primary listing to the NYSE in 2023 and now generates the large majority of its earnings in North America. It supplies aggregates (crushed stone, sand and gravel), cement and cementitious materials, ready-mixed concrete, asphalt and paving services, plus building products and, increasingly, water infrastructure solutions. The business is organized around Americas Materials Solutions, Americas Building Solutions and International Solutions, built on four growth platforms: aggregates, cementitious, roads and water. Full-year 2025 revenue was around $37.4 billion with adjusted EBITDA near $7.7 billion and net income of roughly $3.8 billion.

Full CRH guide

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 approximately 350 aggregates facilities across the US with concentration in Texas, Colorado, the Carolinas, and other high-growth states.

Full MLM guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• CRH drivers: US infrastructure and IIJA tailwind; Pricing discipline and margin expansion.
• MLM drivers: Federal infrastructure tailwind; Texas cement franchise.

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: CRH remains tied to the construction cycle, so a downturn in US residential, commercial or public building activity would pressure volumes and earnings. For MLM, construction cycle volatility.

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 CRH if you believe its drivers more; MLM 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 CRH and MLM guides.

CRH. CRH trades at a mid-teens-to-low-20s earnings multiple, broadly in line with US aggregates peers, reflecting its scale and steadier solutions model. Management guided FY 2026 to net income of about $3.9 billion to $4.1 billion and adjusted EBITDA of roughly $8.1 billion to $8.5 billion. Figures are approximate and move with quarterly results and share price.

MLM. Martin Marietta trades at a premium similar to (slightly below) Vulcan, reflecting the same durable aggregates pricing model, the federal infrastructure tailwind, and the Texas cement franchise. The valuation has expanded with the broader infrastructure thesis.

Headline figures (approximate, July 2026): CRH shows revenue (fy 2025) ~$37.4B, adjusted ebitda (fy 2025) ~$7.7B, net income (fy 2025) ~$3.8B, market cap ~$79B; MLM shows revenue (ttm) ~$6.7 billion, operating margin ~22%, net income (ttm) ~$1 billion, eps (ttm) ~$17.00.

CRH and MLM 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 CRH and MLM exposure against your real portfolio. It is not an investment adviser.