Aon PLC (AON)vsMarsh & McLennan Companies, Inc. (MRSH)
AON
Aon PLC
$334.81
-2.78%
FINANCIAL SERVICES · Cap: $68.24B
MRSH
Marsh & McLennan Companies, Inc.
$204.82
-2.20%
FINANCIAL SERVICES · Cap: $93.90B
Smart Verdict
WallStSmart Research — data-driven comparison
Marsh & McLennan Companies, Inc. generates 61% more annual revenue ($28.46B vs $17.68B). AON leads profitability with a 22.2% profit margin vs 14.2%. MRSH appears more attractively valued with a PEG of 2.00. MRSH earns a higher WallStSmart Score of 62/100 (C+).
AON
Buy62
out of 100
Grade: C+
MRSH
Buy62
out of 100
Grade: C+
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Every $100 of equity generates 41 in profit
Large-cap with strong market position
Keeps 22 of every $100 in revenue as profit
Attractively priced relative to earnings
Strong operational efficiency at 22.2%
Large-cap with strong market position
Every $100 of equity generates 28 in profit
Generating 1.4B in free cash flow
Areas to Watch
2.6% revenue growth
Elevated debt levels
Expensive relative to growth rate
Distress zone — elevated risk
Expensive relative to growth rate
Distress zone — elevated risk
Elevated debt levels
Comparative Analysis Report
WallStSmart ResearchBull Case : AON
The strongest argument for AON centers on Return on Equity, Market Cap, Profit Margin. Profitability is solid with margins at 22.2% and operating margin at 22.2%.
Bull Case : MRSH
The strongest argument for MRSH centers on Market Cap, Return on Equity, Free Cash Flow.
Bear Case : AON
The primary concerns for AON are Revenue Growth, Debt/Equity, PEG Ratio. Debt-to-equity of 1.64 is elevated, increasing financial risk.
Bear Case : MRSH
The primary concerns for MRSH are PEG Ratio, Altman Z-Score, Debt/Equity. Debt-to-equity of 1.52 is elevated, increasing financial risk.
Key Dynamics to Monitor
AON carries more volatility with a beta of 0.69 — expect wider price swings.
MRSH is growing revenue faster at 8.1% — sustainability is the question.
MRSH generates stronger free cash flow (1.4B), providing more financial flexibility.
Monitor INSURANCE BROKERS industry trends, competitive dynamics, and regulatory changes.
Bottom Line
AON scores higher overall (62/100 vs 62/100), backed by strong 22.2% margins. Both earn "Buy" and "Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.
This analysis is generated from publicly available financial data. Not financial advice.
Aon PLC
FINANCIAL SERVICES · INSURANCE BROKERS · USA
Aon plc is a multinational professional services firm that sells a range of financial risk-mitigation products, including insurance, pension administration, and health-insurance plans.
Marsh & McLennan Companies, Inc.
FINANCIAL SERVICES · INSURANCE BROKERS · USA
Marsh & McLennan Companies, Inc., a professional services company, provides advisory services and insurance solutions to clients in the areas of risk, strategy, and people globally. The company is headquartered in New York, New York.
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