Marsh & McLennan Cos. Profit Margin

As of the most recent data (September 2026), MMC shows a profit margin of 14.19%. That compares with 15.6% in the prior-year period — down 9.1% year over year. That is below the Finance sector average of 31.21%. Scroll down for historical charts and peer comparison views.

Compared with the year-ago period, MMC's profit margin is now 14.19% (was 15.6%) — a 9.1% year-over-year decrease. Pairing that YoY change with peer averages gives a clearer picture of whether Marsh & McLennan Cos. is outperforming or lagging.

The Finance sector average profit margin is about 31.21%. Marsh & McLennan Cos. is at 14.19%, which is lower that average. That is roughly 54.6% below the sector mean. Use the comparison chart on this page to see how MMC stacks up against individual peers as well.

That compares with 15.6% in the prior-year period — down 9.1% year over year. Improvement over multiple periods is generally more meaningful than a single strong quarter. Compare Marsh & McLennan Cos. with peers to see if the move is company-specific or sector-wide.

Besides this profit margin page, Stockcircle has Marsh & McLennan Cos.'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 14.19%) with ownership activity and broader fundamentals.