Martin Marietta Materials Profit Margin

As of the most recent data (March 2026), MLM shows a profit margin of 38.67%. That compares with 16.07% in the prior-year period — up 140.6% year over year. That is above the Materials sector average of 16.45%. Scroll down for historical charts and peer comparison views.

Compared with the year-ago period, MLM's profit margin is now 38.67% (was 16.07%) — a 140.6% year-over-year increase. Pairing that YoY change with peer averages gives a clearer picture of whether Martin Marietta Materials is outperforming or lagging.

The Materials sector average profit margin is about 16.45%. Martin Marietta Materials is at 38.67%, which is higher that average. That is roughly 135.1% above the sector mean. Use the comparison chart on this page to see how MLM stacks up against individual peers as well.

That compares with 16.07% in the prior-year period — up 140.6% year over year. Improvement over multiple periods is generally more meaningful than a single strong quarter. Compare Martin Marietta Materials with peers to see if the move is company-specific or sector-wide.

Besides this profit margin page, Stockcircle has Martin Marietta Materials's full stock overview, other financial metrics, insider and congress trade tabs, and tools to follow the stock. Together they help you connect profit margin (currently 38.67%) with ownership activity and broader fundamentals.