Aon PLC (AON)vsBerkshire Hathaway Inc (BRK-B)
AON
Aon PLC
$311.65
-3.36%
FINANCIAL SERVICES · Cap: $66.56B
BRK-B
Berkshire Hathaway Inc
$474.07
-0.28%
FINANCIAL SERVICES · Cap: $1.03T
Smart Verdict
WallStSmart Research — data-driven comparison
Berkshire Hathaway Inc generates 2062% more annual revenue ($371.44B vs $17.18B). AON leads profitability with a 21.5% profit margin vs 18.0%. AON appears more attractively valued with a PEG of 2.56. AON earns a higher WallStSmart Score of 70/100 (B).
AON
Strong Buy70
out of 100
Grade: B
BRK-B
Buy54
out of 100
Grade: C-
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Every $100 of equity generates 47 in profit
Strong operational efficiency at 31.4%
Earnings expanding 138.3% YoY
Large-cap with strong market position
Keeps 22 of every $100 in revenue as profit
Generating 1.3B in free cash flow
Mega-cap, among the largest globally
Reasonable price relative to book value
Strong operational efficiency at 33.0%
Conservative balance sheet, low leverage
Attractively priced relative to earnings
Generating 5.0B in free cash flow
Areas to Watch
3.7% revenue growth
Expensive relative to growth rate
Distress zone — elevated risk
Weak financial health signals
Expensive relative to growth rate
Revenue declined 0.7%
Earnings declined 2.5%
Comparative Analysis Report
WallStSmart ResearchBull Case : AON
The strongest argument for AON centers on Return on Equity, Operating Margin, EPS Growth. Profitability is solid with margins at 21.5% and operating margin at 31.4%.
Bull Case : BRK-B
The strongest argument for BRK-B centers on Market Cap, Price/Book, Operating Margin. Profitability is solid with margins at 18.0% and operating margin at 33.0%.
Bear Case : AON
The primary concerns for AON are Revenue Growth, PEG Ratio, Altman Z-Score.
Bear Case : BRK-B
The primary concerns for BRK-B are Piotroski F-Score, PEG Ratio, Revenue Growth.
Key Dynamics to Monitor
AON profiles as a value stock while BRK-B is a declining play — different risk/reward profiles.
AON carries more volatility with a beta of 0.82 — expect wider price swings.
AON is growing revenue faster at 3.7% — sustainability is the question.
BRK-B generates stronger free cash flow (5.0B), providing more financial flexibility.
Bottom Line
AON scores higher overall (70/100 vs 54/100), backed by strong 21.5% 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.
Berkshire Hathaway Inc
FINANCIAL SERVICES · INSURANCE - DIVERSIFIED · USA
Berkshire Hathaway Inc. is an American multinational conglomerate holding company headquartered in Omaha, Nebraska, United States. The company wholly owns GEICO, Duracell, Dairy Queen, BNSF, Lubrizol, Fruit of the Loom, Helzberg Diamonds, Long & Foster, FlightSafety International, Pampered Chef, Forest River, and NetJets, and also owns 38.6% of Pilot Flying J; and significant minority holdings in public companies Kraft Heinz Company (26.7%), American Express (18.8%), The Coca-Cola Company (9.32%), Bank of America (11.9%), and Apple (6.3%).
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