Aon PLC (AON)vsSun Life Financial Inc. (SLF)
AON
Aon PLC
$328.53
+1.95%
FINANCIAL SERVICES · Cap: $67.89B
SLF
Sun Life Financial Inc.
$73.72
+1.04%
FINANCIAL SERVICES · Cap: $41.00B
Smart Verdict
WallStSmart Research — data-driven comparison
Sun Life Financial Inc. generates 100% more annual revenue ($34.90B vs $17.49B). AON leads profitability with a 22.5% profit margin vs 8.8%. SLF appears more attractively valued with a PEG of 1.42. AON earns a higher WallStSmart Score of 70/100 (B).
AON
Strong Buy70
out of 100
Grade: B
SLF
Buy51
out of 100
Grade: C-
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
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
Attractively priced relative to earnings
Earnings expanding 27.1% YoY
Reasonable price relative to book value
Generating 4.1B in free cash flow
Areas to Watch
Elevated debt levels
Expensive relative to growth rate
Distress zone — elevated risk
0.2% revenue growth
Earnings declined 48.4%
Comparative Analysis Report
WallStSmart ResearchBull 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%.
Bull Case : SLF
The strongest argument for SLF centers on Price/Book, Free Cash Flow. PEG of 1.42 suggests the stock is reasonably priced for its growth.
Bear Case : AON
The primary concerns for AON are Debt/Equity, PEG Ratio, Altman Z-Score. Debt-to-equity of 1.56 is elevated, increasing financial risk.
Bear Case : SLF
The primary concerns for SLF are Revenue Growth, EPS Growth.
Key Dynamics to Monitor
AON profiles as a mature stock while SLF is a value play — different risk/reward profiles.
SLF carries more volatility with a beta of 0.83 — expect wider price swings.
AON is growing revenue faster at 6.5% — sustainability is the question.
SLF generates stronger free cash flow (4.1B), providing more financial flexibility.
Bottom Line
AON scores higher overall (70/100 vs 51/100), backed by strong 22.5% margins. Both earn "Strong 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.
Sun Life Financial Inc.
FINANCIAL SERVICES · INSURANCE - DIVERSIFIED · USA
Sun Life Financial Inc., a financial services company, provides insurance, wealth and asset management solutions to individuals and corporate clients around the world. The company is headquartered in Toronto, Canada.
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