Marsh & McLennan Companies, Inc. (MMC) Operating Margin: 23.06%
Is Marsh & McLennan Companies, Inc.’s operating margin high or low?
Marsh & McLennan Companies, Inc.'s operating margin of 23.06% is in line with its 5-year average of 21.71%, near the high end of its 5-year range (17.80%–23.78%).
The operating margin for Marsh & McLennan Companies, Inc. (MMC) is 23.06% as of Tuesday, June 9, 2026. It is below its 12-month average by 1.54% (23.42%).
MMC Operating Margin Chart
MMC Average Operating Margin Chart
MMC Current vs Average Operating Margin Chart
MMC Operating Margin Metrics
OPERATING MARGIN
23.06%
OPERATING MARGIN AVG TTM
23.42%
OPERATING MARGIN AVG 3Y
22.68%
OPERATING MARGIN AVG 5Y
21.71%
OPERATING MARGIN AVG 10Y
20.08%
OPERATING MARGIN AVG 15Y
18.38%
OPERATING MARGIN AVG 20Y
15.66%
CURRENT VS TTM AVG
-1.54%
CURRENT VS 3Y AVG
+1.66%
CURRENT VS 5Y AVG
+6.19%
CURRENT VS 10Y AVG
+14.81%
CURRENT VS 15Y AVG
+25.46%
CURRENT VS 20Y AVG
+47.23%
MMC Competitors' Operating Margin
| NAME | MARKET CAP | OPERATING MARGIN | TTM | 3Y | 5Y |
|---|---|---|---|---|---|
| Marsh & McLennan Companies, Inc. (MMC) | — | 23.06% | 23.42% | 22.68% | 21.71% |
| CME Group Inc. (CME) | $92.74B | 64.86% | 64.50% | 62.66% | 60.18% |
| Intercontinental Exchange, Inc. (ICE) | $80.05B | 38.74% | 37.69% | 37.61% | 37.47% |
| Moody's Corporation (MCO) | $78.60B | 44.77% | 43.34% | 40.19% | 42.01% |
| iShares Russell 2000 ETF (IWM) | $78.33B | N/A | N/A | N/A | N/A |
| Robinhood Markets, Inc. (HOOD) | $75.44B | 46.81% | 41.27% | -4.33% | -17.73% |
| Aon plc (AON) | $70.82B | 25.28% | 24.86% | 26.85% | 24.95% |
| The Travelers Companies, Inc. (TRV) | $63.85B | 15.97% | 14.64% | 11.63% | 11.57% |
| The Progressive Corporation (PGR) | $116.94B | 16.23% | 15.23% | 10.05% | 10.98% |
| Aflac Incorporated (AFL) | $58.84B | 26.61% | 30.08% | 28.38% | 26.06% |
Operating Efficiency
Gross Margin
0.0%
Operating Margin
23.1%
Marsh & McLennan Companies, Inc. Operating Margin Formula & Definition
Operating Margin = Operating Income / Revenue
Operating margin is the percentage of revenue remaining after operating expenses, reflecting operating efficiency.
Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute
Marsh & McLennan Companies, Inc. Operating Margin FAQ
- What is the operating margin for Marsh & McLennan Companies, Inc. (MMC)?
- The operating margin for MMC stock is 23.06%.
- Is Marsh & McLennan Companies, Inc.'s operating margin high or low?
- Marsh & McLennan Companies, Inc.'s operating margin of 23.06% is in line with its 5-year average of 21.71%, near the high end of its 5-year range (17.80%–23.78%).
- What is the TTM average operating margin for Marsh & McLennan Companies, Inc. (MMC)?
- The TTM average operating margin for MMC stock is 23.42%.
- What is the 3Y average operating margin for Marsh & McLennan Companies, Inc. (MMC)?
- The 3Y average operating margin for MMC stock is 22.68%.
- What is the 5Y average operating margin for Marsh & McLennan Companies, Inc. (MMC)?
- The 5Y average operating margin for MMC stock is 21.71%.
- What is the 10Y average operating margin for Marsh & McLennan Companies, Inc. (MMC)?
- The 10Y average operating margin for MMC stock is 20.08%.
- What is the 15Y average operating margin for Marsh & McLennan Companies, Inc. (MMC)?
- The 15Y average operating margin for MMC stock is 18.38%.
- What is the 20Y average operating margin for Marsh & McLennan Companies, Inc. (MMC)?
- The 20Y average operating margin for MMC stock is 15.66%.
Marsh & McLennan Companies, Inc. Operating Margin History
| DATE | OPERATING MARGIN |
|---|---|
| 2025-12-31 | 23.06% |
| 2024-12-31 | 23.78% |
| 2023-12-31 | 23.23% |
| 2022-12-31 | 20.66% |
| 2021-12-31 | 21.76% |
| 2020-12-31 | 17.80% |
| 2019-12-31 | 16.08% |
| 2018-12-31 | 18.47% |
| 2017-12-31 | 18.93% |
| 2016-12-31 | 18.40% |
| 2015-12-31 | 18.76% |
| 2014-12-31 | 17.77% |
| 2013-12-31 | 16.94% |
| 2012-12-31 | 15.34% |
| 2011-12-31 | 14.21% |
| 2010-12-31 | 8.90% |
| 2009-12-31 | 7.91% |
| 2008-12-31 | 6.33% |
| 2007-12-31 | 7.57% |
| 2006-12-31 | 7.95% |
| 2005-12-31 | 5.06% |
| 2004-12-31 | 5.10% |
| 2003-12-31 | 21.54% |
| 2002-12-31 | 21.78% |
| 2001-12-31 | 17.86% |
| 2000-12-31 | 21.14% |
| 1999-12-31 | 16.02% |
| 1998-12-31 | 19.75% |
| 1997-12-31 | 13.28% |
| 1996-12-31 | 16.24% |