CENX vs. AER
CENX (Century Aluminum Company) and AER (AerCap Holdings N.V.) are both stocks. CENX operates in Aluminum (Basic Materials), while AER operates in Airports & Air Services (Industrials). Over the past 10 years, CENX returned 20.79%/yr vs 15.86%/yr for AER. Their 0.40 correlation means their historical movements had little consistent relationship.
Performance
CENX vs. AER - Performance Comparison
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Returns By Period
In the year-to-date period, CENX achieves a 14.27% return, which is significantly higher than AER's 5.54% return. Over the past 10 years, CENX has outperformed AER with an annualized return of 20.79%, while AER has yielded a comparatively lower 15.86% annualized return.
CENX
- 1D
- -0.25%
- 1M
- 2.31%
- 6M
- -1.24%
- YTD
- 14.27%
- 1Y
- 118.71%
- 3Y*
- 69.21%
- 5Y*
- 25.19%
- 10Y*
- 20.79%
- ALL TIME*
- 4.66%
AER
- 1D
- -1.29%
- 1M
- 2.07%
- 6M
- 5.62%
- YTD
- 5.54%
- 1Y
- 40.62%
- 3Y*
- 33.53%
- 5Y*
- 23.85%
- 10Y*
- 15.86%
- ALL TIME*
- 9.69%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $174.13M | $156.70M | $179.82M | |
| $78.09M | $78.34M | $110.32M |
CENX vs. AER - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CENX Century Aluminum Company | 14.27% | 115.04% | 50.08% | 48.41% | -50.60% | 50.14% | 46.77% | 2.80% | -62.78% | 129.44% |
AER AerCap Holdings N.V. | 5.54% | 51.66% | 29.81% | 27.43% | -10.85% | 43.53% | -25.85% | 55.23% | -24.73% | 26.44% |
Correlation
The correlation between CENX and AER is 0.13, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.13 |
Correlation (3Y) Balances recent behavior with more history. | 0.24 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.35 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.39 |
Correlation (All Time) Calculated using the full available price history since Nov 21, 2006 | 0.40 |
Over the past year, the correlation between CENX and AER has dropped to 0.13 - well below their long-term average of 0.40, suggesting their price drivers have been diverging.
Fundamentals
CENX:
$4.43B
AER:
$23.79B
CENX:
$3.48
AER:
$20.44
CENX:
12.88
AER:
7.38
CENX:
0.04
AER:
0.18
CENX:
1.77
AER:
3.02
CENX:
4.07
AER:
1.29
CENX:
$2.54B
AER:
$8.30B
CENX:
$322.30M
AER:
$4.97B
CENX:
$466.30M
AER:
$7.54B
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Return for Risk
CENX vs. AER — Risk / Return Rank
CENX
AER
CENX vs. AER - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Century Aluminum Company (CENX) and AerCap Holdings N.V. (AER). 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.
| CENX | AER | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.15 | ||
| Sortino ratioReturn per unit of downside risk | +0.01 | ||
| Omega ratioGain probability vs. loss probability | 1.29 | 1.28 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 2.82 | 2.86 | -0.04 |
| Martin ratioReturn relative to average drawdown | 7.73 | 7.41 | +0.32 |
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Drawdowns
CENX vs. AER - Drawdown Comparison
The maximum CENX drawdown since its inception was -98.67%, roughly equal to the maximum AER drawdown of -94.38%. Use the drawdown chart below to compare losses from any high point for CENX and AER.
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Drawdown Indicators
| CENX | AER | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -98.67% | -94.38% | -4.29% |
Max Drawdown (1Y)Largest decline over 1 year | -39.65% | -14.77% | -24.88% |
Max Drawdown (3Y)Largest decline over 3 years | -42.77% | -15.66% | -27.11% |
Max Drawdown (5Y)Largest decline over 5 years | -82.10% | -45.14% | -36.96% |
Max Drawdown (10Y)Largest decline over 10 years | -87.51% | -75.86% | -11.65% |
Current DrawdownCurrent decline from peak | -44.03% | -2.07% | -41.96% |
Average DrawdownAverage peak-to-trough decline | -61.03% | -28.23% | -32.80% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 14.47% | 5.70% | +8.77% |
Volatility
CENX vs. AER - Volatility Comparison
Century Aluminum Company (CENX) has a higher volatility of 13.92% compared to AerCap Holdings N.V. (AER) at 8.99%. This indicates that CENX's price experiences larger fluctuations and is considered to be riskier than AER based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CENX | AER | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 13.92% | 8.99% | +4.93% |
Volatility (6M)Calculated over the trailing 6-month period | 47.32% | 21.96% | +25.36% |
Volatility (1Y)Calculated over the trailing 1-year period | 64.30% | 26.54% | +37.76% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 71.84% | 32.10% | +39.74% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 70.39% | 41.65% | +28.74% |
Dividends
CENX vs. AER - Dividend Comparison
CENX has not paid dividends to shareholders, while AER's dividend yield for the trailing twelve months is around 0.89%.
| Position | TTM | 2025 | 2024 |
|---|---|---|---|
AER AerCap Holdings N.V. | 0.89% | 0.75% | 0.78% |
CENX Century Aluminum Company | 0.00% | 0.00% | 0.00% |
Financials
CENX vs. AER - Financials Comparison
This section allows you to compare key financial metrics between Century Aluminum Company and AerCap Holdings N.V.. 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
CENX vs. AER - Profitability Comparison
CENX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Century Aluminum Company reported a gross profit of 118.80M and revenue of 649.20M. Therefore, the gross margin over that period was 18.3%.
AER - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, AerCap Holdings N.V. reported a gross profit of 1.29B and revenue of 2.08B. Therefore, the gross margin over that period was 61.9%.
CENX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Century Aluminum Company reported an operating income of 374.00M and revenue of 649.20M, resulting in an operating margin of 57.6%.
AER - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, AerCap Holdings N.V. reported an operating income of 1.15B and revenue of 2.08B, resulting in an operating margin of 55.2%.
CENX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Century Aluminum Company reported a net income of 337.50M and revenue of 649.20M, resulting in a net margin of 52.0%.
AER - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, AerCap Holdings N.V. reported a net income of 725.72M and revenue of 2.08B, resulting in a net margin of 34.9%.
Frequently Asked Questions
CENX and AER have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CENX has higher volatility (13.92%) compared to AER (8.99%). In terms of maximum drawdown, CENX dropped -98.67% vs AER's -94.38%.
CENX currently has the higher Sharpe Ratio (1.74 vs 1.60), 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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