Arthur J Gallagher & Co (AJG)vsAon PLC (AON)
AJG
Arthur J Gallagher & Co
$202.50
+2.31%
FINANCIAL SERVICES · Cap: $55.43B
AON
Aon PLC
$320.75
+1.95%
FINANCIAL SERVICES · Cap: $70.38B
Smart Verdict
WallStSmart Research — data-driven comparison
Aon PLC generates 23% more annual revenue ($17.49B vs $14.20B). AON leads profitability with a 22.5% profit margin vs 11.4%. AJG appears more attractively valued with a PEG of 0.94. AJG earns a higher WallStSmart Score of 72/100 (B).
AJG
Strong Buy72
out of 100
Grade: B
AON
Strong Buy68
out of 100
Grade: B-
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Revenue surging 34.6% year-over-year
Conservative balance sheet, low leverage
Large-cap with strong market position
Growing faster than its price suggests
Reasonable price relative to book value
Strong operational efficiency at 28.4%
Every $100 of equity generates 40 in profit
Strong operational efficiency at 35.8%
Large-cap with strong market position
Keeps 23 of every $100 in revenue as profit
Earnings expanding 27.1% YoY
Areas to Watch
Premium valuation, high expectations priced in
ROE of 6.8% — below average capital efficiency
Distress zone — elevated risk
Elevated debt levels
Expensive relative to growth rate
Distress zone — elevated risk
Comparative Analysis Report
WallStSmart ResearchBull Case : AJG
The strongest argument for AJG centers on Revenue Growth, Debt/Equity, Market Cap. Revenue growth of 34.6% demonstrates continued momentum. PEG of 0.94 suggests the stock is reasonably priced for its growth.
Bull Case : AON
The strongest argument for AON centers on Return on Equity, Operating Margin, Market Cap. Profitability is solid with margins at 22.5% and operating margin at 35.8%.
Bear Case : AJG
The primary concerns for AJG are P/E Ratio, Return on Equity, Altman Z-Score.
Bear Case : AON
The primary concerns for AON are Debt/Equity, PEG Ratio, Altman Z-Score. Debt-to-equity of 1.57 is elevated, increasing financial risk.
Key Dynamics to Monitor
AJG profiles as a growth stock while AON is a mature play — different risk/reward profiles.
AON carries more volatility with a beta of 0.71 — expect wider price swings.
AJG is growing revenue faster at 34.6% — sustainability is the question.
AJG generates stronger free cash flow (921M), providing more financial flexibility.
Bottom Line
AJG scores higher overall (72/100 vs 68/100) and 34.6% revenue growth. Both earn "Strong Buy" and "Strong 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.
Arthur J Gallagher & Co
FINANCIAL SERVICES · INSURANCE BROKERS · USA
Arthur J. Gallagher & Co. (AJG) is an American global insurance brokerage and risk management services firm headquartered in Rolling Meadows, Illinois.
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.
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