MLM Stock Summary and Trading Ideas (Martin Marietta Materials | NYSE:MLM)

Martin Marietta is a leading US producer of construction aggregates, having produced roughly 200 million tons in 2025. Its aggregate reserves represent approximately 85 years of supply at 2025 production levels. Over the past several years, the company has increased its exposure to aggregates while reducing its presence in cement and downstream businesses such as concrete and asphalt. More recently, Martin Marietta expanded into an aggregate-adjacent business through its acquisition of Lhoist North America, the largest US producer of lime. The company operates across 28 states, with smaller operations in Canada and the Bahamas.

What symbol and exchange does Martin Marietta Materials shares trade?

Martin Marietta Materials trades on the NYSE stock market under the symbol MLM.

What is Martin Marietta Materials stock price doing today?

As of October 2, 2026, MLM stock price climbed to $482.27 with 677,972 million shares trading.

What is Martin Marietta Materials's Beta?

MLM has a beta of 0.66, meaning it tends to be less sensitive to market movements. MLM has a correlation of 0.11 to the broad based SPY ETF.

How much is Martin Marietta Materials worth?

MLM has a market cap of $34.25 billion. This is considered a Large Cap stock.

How much money does Martin Marietta Materials make?

Last quarter Martin Marietta Materials reported $2 billion in Revenue and $5.00 earnings per share. This beat revenue expectation by $77 million and exceeded earnings estimates by $.13.

What is the highest and lowest price Martin Marietta Materials traded in the last 3 year period?

In the last 3 years, MLM traded as high as $710.97 and as low as $389.90.

What are the top ETFs holding Martin Marietta Materials?

The top ETF exchange traded funds that MLM belongs to (by Net Assets): VTI, VOO, VO, IVV, SPY.

Is Martin Marietta Materials (MLM) a good investment?

MLM has underperformed the market in the last year with a price return of -22.7% while the SPY ETF gained +16.1%. MLM has also underperformed the stock market ETF in the last 3 month and 2 week periods returning -19.4% and -1.7%, respectively, while the SPY returned +3.6% and +1.0%, respectively.

What are the support and resistance levels for Martin Marietta Materials (MLM)?

MLM support price is $470.64 and resistance is $487.70 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that MLM shares will trade within this expected range on the day.