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

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.

Reading it: TTAM 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. MLM and TTAM 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 TTAM 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.

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.

Full MLM guide

Titan America (NYSE: TTAM) manufactures and supplies heavy building materials across the Eastern United States, concentrated in Florida and the Mid-Atlantic (Virginia, the Carolinas and the New York and New Jersey metro area). Its vertically integrated model spans cement and supplementary cementitious materials, aggregates, ready-mix concrete, concrete block and fly ash, sold to construction contractors and building-products resellers. The company operates as the U.S. subsidiary of Titan Cement International, a Greek building-materials group founded in 1902, and listed on the NYSE in February 2025 by selling a small slice of shares while the parent retained majority control.

Full TTAM guide

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.
• TTAM drivers: Eastern Seaboard construction demand; Pricing and cost discipline.

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 TTAM, titan America is cyclical: a slowdown in U.S.

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; TTAM 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 TTAM guides.

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.

TTAM. At about $13.62 a share, Titan America trades near 14 times trailing EPS and about 11 times the roughly $1.23 analysts expect for 2027, a discount to the high-teens multiple it carried in mid-2026 and to larger aggregates peers after a roughly 19 percent decline this year. The derating follows a second-quarter EPS miss and a guided decline in 2026 margins. The very small public float (roughly 25 million shares versus about 184 million total) means reported valuation reflects a company controlled by its Greek parent; third-quarter results are expected around November 4, 2026.

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; TTAM shows revenue (ttm) ~$1.71B, revenue growth (q2 2026, yoy) ~9.6% (about $20M from Keystone), net income (ttm) ~$177M (net margin ~10%), adjusted ebitda margin (q2 2026) ~21.4% (vs 23.2% a year earlier).

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