AER vs. WLFC
AER (AerCap Holdings N.V.) and WLFC (Willis Lease Finance Corporation) are both stocks. Both are in the Industrials sector — AER in Airports & Air Services, WLFC in Rental & Leasing Services. Over the past 10 years, AER returned 15.80%/yr vs 25.20%/yr for WLFC. At a 0.26 correlation, their price movements are largely independent.
Performance
AER vs. WLFC - Performance Comparison
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Returns By Period
In the year-to-date period, AER achieves a 2.40% return, which is significantly lower than WLFC's 55.77% return. Over the past 10 years, AER has underperformed WLFC with an annualized return of 15.80%, while WLFC has yielded a comparatively higher 25.20% annualized return.
AER
- 1D
- -0.30%
- 1M
- 5.62%
- YTD
- 2.40%
- 6M
- 1.37%
- 1Y
- 28.46%
- 3Y*
- 35.22%
- 5Y*
- 22.46%
- 10Y*
- 15.80%
WLFC
- 1D
- 0.73%
- 1M
- 15.21%
- YTD
- 55.77%
- 6M
- 50.34%
- 1Y
- 49.80%
- 3Y*
- 75.65%
- 5Y*
- 37.19%
- 10Y*
- 25.20%
AER vs. WLFC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AER AerCap Holdings N.V. | 2.40% | 51.66% | 29.81% | 27.43% | -10.85% | 43.53% | -25.85% | 55.23% | -24.73% | 26.44% |
WLFC Willis Lease Finance Corporation | 55.77% | -34.14% | 332.92% | -17.17% | 56.73% | 23.60% | -48.29% | 70.26% | 38.57% | -2.38% |
Correlation
The correlation between AER and WLFC is 0.44, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.44 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.39 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.34 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.36 |
Correlation (All Time) Calculated using the full available price history since Nov 21, 2006 | 0.26 |
The correlation between AER and WLFC shifts across timeframes, from 0.26 (all time) to 0.44 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
AER:
$24.14B
WLFC:
$1.53B
AER:
$22.98
WLFC:
$17.02
AER:
6.37
WLFC:
12.37
AER:
0.16
WLFC:
0.00
AER:
3.08
WLFC:
1.97
AER:
1.31
WLFC:
2.20
AER:
$8.11B
WLFC:
$757.62M
AER:
$4.29B
WLFC:
$405.87M
AER:
$6.71B
WLFC:
$416.98M
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Return for Risk
AER vs. WLFC — Risk / Return Rank
AER
WLFC
AER vs. WLFC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AerCap Holdings N.V. (AER) and Willis Lease Finance Corporation (WLFC). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| AER | WLFC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.07 | ||
| Sortino ratioReturn per unit of downside risk | -0.05 | ||
| Omega ratioGain probability vs. loss probability | 1.21 | 1.20 | +0.01 |
| Calmar ratioReturn relative to maximum drawdown | 1.94 | 1.57 | +0.36 |
| Martin ratioReturn relative to average drawdown | 4.90 | 3.11 | +1.79 |
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Drawdowns
AER vs. WLFC - Drawdown Comparison
The maximum AER drawdown since its inception was -94.38%, which is greater than WLFC's maximum drawdown of -88.12%. Use the drawdown chart below to compare losses from any high point for AER and WLFC.
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Drawdown Indicators
| AER | WLFC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -94.38% | -88.12% | -6.26% |
Max Drawdown (1Y)Largest decline over 1 year | -14.77% | -31.84% | +17.07% |
Max Drawdown (3Y)Largest decline over 3 years | -15.66% | -49.88% | +34.22% |
Max Drawdown (5Y)Largest decline over 5 years | -45.14% | -49.88% | +4.74% |
Max Drawdown (10Y)Largest decline over 10 years | -75.86% | -79.76% | +3.90% |
Current DrawdownCurrent decline from peak | -4.92% | -11.73% | +6.81% |
Average DrawdownAverage peak-to-trough decline | -28.37% | -42.33% | +13.96% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.83% | 16.06% | -10.23% |
Volatility
AER vs. WLFC - Volatility Comparison
The current volatility for AerCap Holdings N.V. (AER) is 6.67%, while Willis Lease Finance Corporation (WLFC) has a volatility of 11.48%. This indicates that AER experiences smaller price fluctuations and is considered to be less risky than WLFC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AER | WLFC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.67% | 11.48% | -4.81% |
Volatility (6M)Calculated over the trailing 6-month period | 20.29% | 37.08% | -16.79% |
Volatility (1Y)Calculated over the trailing 1-year period | 25.29% | 47.24% | -21.95% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 32.22% | 42.93% | -10.71% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 41.78% | 50.97% | -9.19% |
Dividends
AER vs. WLFC - Dividend Comparison
AER's dividend yield for the trailing twelve months is around 0.92%, more than WLFC's 0.69% yield.
| Position | TTM | 2025 | 2024 |
|---|---|---|---|
AER AerCap Holdings N.V. | 0.92% | 0.75% | 0.78% |
WLFC Willis Lease Finance Corporation | 0.69% | 0.85% | 0.72% |
Financials
AER vs. WLFC - Financials Comparison
This section allows you to compare key financial metrics between AerCap Holdings N.V. and Willis Lease Finance Corporation. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
AER vs. WLFC - Profitability Comparison
AER - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, AerCap Holdings N.V. reported a gross profit of 1.41B and revenue of 2.16B. Therefore, the gross margin over that period was 65.4%.
WLFC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Willis Lease Finance Corporation reported a gross profit of 0.00 and revenue of 194.35M. Therefore, the gross margin over that period was 0.0%.
AER - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, AerCap Holdings N.V. reported an operating income of 1.28B and revenue of 2.16B, resulting in an operating margin of 59.3%.
WLFC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Willis Lease Finance Corporation reported an operating income of 33.79M and revenue of 194.35M, resulting in an operating margin of 17.4%.
AER - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, AerCap Holdings N.V. reported a net income of 818.12M and revenue of 2.16B, resulting in a net margin of 37.8%.
WLFC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Willis Lease Finance Corporation reported a net income of 23.66M and revenue of 194.35M, resulting in a net margin of 12.2%.
Frequently Asked Questions
AER and WLFC have a correlation of 0.44, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
WLFC has higher volatility (11.48%) compared to AER (6.67%). In terms of maximum drawdown, AER dropped -94.38% vs WLFC's -88.12%.
AER currently has the higher Sharpe Ratio (1.13 vs 1.06), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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