AON vs. MKL: Aon vs. Markel Stock Comparison
How do Aon (AON) and Markel (MKL) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.
Company Profile
Aon (AON) and Markel (MKL) both belong to the Insurance industry, though AON is classified under Insurance Brokers while MKL falls under Property & Casualty Insurance.
| Profile Item | AON | MKL |
|---|---|---|
| Name | Aon plc Class A | Markel Group Inc. |
| Country/Region | Ireland | United States |
| GICS Sector | Financials | Financials |
| GICS Industry Group | Insurance | Insurance |
| GICS Industry | Insurance | Insurance |
| GICS Sub-Industry | Insurance Brokers | Property & Casualty Insurance |
| Market Capitalization | 71.03 billion USD | 23.71 billion USD |
| Currency | USD | USD |
| Exchange | NYSE | NYSE |
| Listing Date | June 2, 1980 | December 12, 1986 |
| Security Type | Common Stock | Common Stock |
Price Performance
Cumulative Growth
Trailing Returns
Calendar-Year Returns
Performance Metrics
| Metric | AON | MKL |
|---|---|---|
| Total Return (1Y) | -1.97% | -4.35% |
| Total Return (3Y, Annualized) | 1.25% | 13.21% |
| Total Return (5Y, Annualized) | 3.28% | 8.36% |
Risk Profile
Drawdown History
Return Distribution
Risk Metrics
Aon (AON) trades around 1.64M shares per day on average, while Markel (MKL) sees only 66.79K — a volume gap that can matter for position sizing, exit liquidity, and order execution.
| Metric | AON | MKL |
|---|---|---|
| Volatility (1Y, Annualized) | 29.20% | 18.61% |
| Beta (5Y) | 0.60 | 0.57 |
| Max Drawdown (5Y) | -33.57% | -28.87% |
| Avg. Volume (3M) | 1.64M | 66.79K |
Risk-Adjusted Performance
Risk-Return Positioning
Risk-Adjusted Metrics
| Metric | AON | MKL |
|---|---|---|
| Sharpe Ratio (1Y) | -0.21 | -0.46 |
| Sortino Ratio (1Y) | -0.29 | -0.60 |
Profitability
ROE (TTM)
Aon (AON) at 43.38% clears its industry range for ROE, a sharper capital-efficiency signal than Markel (MKL) at 9.75%, which is closer to a typical peer reading.
AON
Insurance industry group
43.38%
- AON
- 43.38%
- Max
- 41.68%
- Q3
- 22.04%
- Median
- 14.81%
- Q1
- 8.79%
- Min
- -10.66%
MKL
Insurance industry group
9.75%
- Max
- 41.68%
- Q3
- 22.04%
- Median
- 14.81%
- MKL
- 9.75%
- Q1
- 8.79%
- Min
- -10.66%
Net Margin (TTM)
Aon (AON) at 22.24% retains a top-quartile share of revenue as profit, ahead of Markel (MKL) at 11.13%, which keeps about the industry-typical share.
AON
Insurance industry group
22.24%
- Max
- 29.92%
- AON
- 22.24%
- Q3
- 17.03%
- Median
- 10.97%
- Q1
- 6.21%
- Min
- -4.68%
MKL
Insurance industry group
11.13%
- Max
- 29.92%
- Q3
- 17.03%
- MKL
- 11.13%
- Median
- 10.97%
- Q1
- 6.21%
- Min
- -4.68%
Operating Margin (TTM)
Neither side reports a meaningful operating margin: for Aon (AON) in Insurance and Markel (MKL) in Insurance, funding costs are part of the core business, so net margin and ROE are the cleaner profitability reads.
Profitability Metrics
| Metric | AON | MKL |
|---|---|---|
| ROE (TTM) | 43.38% | 9.75% |
| ROA (TTM) | 5.45% | 2.21% |
| Net Margin (TTM) | 22.24% | 11.13% |
| Operating Margin (TTM) | -- | -- |
| Gross Margin (TTM) | -- | -- |
Growth
Revenue Growth
Aon (AON) at 9.45% is around its peer norm for revenue growth, while Markel (MKL) at -2.49% drops into the bottom quartile, signaling weaker demand or pricing momentum.
EPS Growth
Aon (AON) at 36.27% is around its peer norm for EPS growth, while Markel (MKL) at -15.10% drops into the bottom quartile, signaling weaker earnings momentum.
Growth Metrics
| Metric | AON | MKL |
|---|---|---|
| Revenue Growth (YoY) | 9.45% | -2.49% |
| Revenue Growth (3Y CAGR) | 11.25% | 11.40% |
| EPS Growth (YoY) | 36.27% | -15.10% |
| EPS Growth (3Y CAGR) | 11.92% | -- |
Financial Strength
Current Ratio (MRQ)
current ratio doesn’t apply on either side: Aon (AON) in Insurance and Markel (MKL) in Insurance both report balance sheets without a current/non-current split, so their short-term liquidity is better judged through regulatory and funding measures.
Debt / Equity (MRQ)
debt-to-equity ratio is set aside for both: Aon (AON) in Insurance and Markel (MKL) in Insurance run businesses where balance-sheet leverage is part of the model, so capital-adequacy and funding measures are the better gauges of balance-sheet risk.
Financial Strength Metrics
| Metric | AON | MKL |
|---|---|---|
| Current Ratio (MRQ) | -- | -- |
| Debt / Equity (MRQ) | -- | -- |
| Net Debt / EBITDA | -- | -- |
Dividends
Dividend Yield (TTM)
Markel (MKL) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Aon (AON) reports a yield of 0.91%, ranking against industry peers normally.
AON
Insurance industry group
0.91%
- Max
- 5.12%
- Q3
- 2.15%
- Median
- 0.98%
- AON
- 0.91%
- Q1
- 0.00%
- Min
- 0.00%
MKL
Insurance industry group
0.00%
- Max
- 5.12%
- Q3
- 2.15%
- Median
- 0.98%
- MKL
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Payout Ratio (TTM)
Markel (MKL) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Aon (AON) reports a payout of 17.13%, ranking against industry peers normally.
AON
Insurance industry group
17.13%
- Max
- 76.67%
- Q3
- 35.18%
- AON
- 17.13%
- Median
- 14.74%
- Q1
- 0.00%
- Min
- 0.00%
MKL
Insurance industry group
0.00%
- Max
- 76.67%
- Q3
- 35.18%
- Median
- 14.74%
- MKL
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Metrics
| Metric | AON | MKL |
|---|---|---|
| Dividend Yield (TTM) | 0.91% | 0.00% |
| Dividend Payout Ratio (TTM) | 17.13% | 0.00% |
Valuation
P/E Ratio (TTM)
Both Aon (AON) at 18.33 and Markel (MKL) at 13.80 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.
AON
Insurance industry group
18.33
- Max
- 28.37
- Q3
- 18.75
- AON
- 18.33
- Median
- 12.23
- Q1
- 9.08
- Min
- 2.32
MKL
Insurance industry group
13.80
- Max
- 28.37
- Q3
- 18.75
- MKL
- 13.80
- Median
- 12.23
- Q1
- 9.08
- Min
- 2.32
P/S Ratio (TTM)
Markel (MKL) at 1.47 is priced about in line with its industry on P/S ratio, while Aon (AON) at 4.02 sits in the pricier quartile — AON costs more per dollar of sales.
AON
Insurance industry group
4.02
- Max
- 4.03
- AON
- 4.02
- Q3
- 2.25
- Median
- 1.23
- Q1
- 0.85
- Min
- 0.07
MKL
Insurance industry group
1.47
- Max
- 4.03
- Q3
- 2.25
- MKL
- 1.47
- Median
- 1.23
- Q1
- 0.85
- Min
- 0.07
P/B Ratio (MRQ)
Markel (MKL) at 1.28 sits near its industry’s typical P/B ratio, while Aon (AON) at 7.03 prices above its benchmark range — AON looks rich relative to book.
AON
Insurance industry group
7.03
- AON
- 7.03
- Max
- 5.07
- Q3
- 2.79
- Median
- 1.76
- Q1
- 1.23
- Min
- 0.30
MKL
Insurance industry group
1.28
- Max
- 5.07
- Q3
- 2.79
- Median
- 1.76
- MKL
- 1.28
- Q1
- 1.23
- Min
- 0.30
Valuation Metrics
| Metric | AON | MKL |
|---|---|---|
| P/E Ratio (TTM) | 18.33 | 13.80 |
| P/S Ratio (TTM) | 4.02 | 1.47 |
| P/B Ratio (MRQ) | 7.03 | 1.28 |
| Free Cash Flow Yield (TTM) | -- | -- |