CSTM vs. CENX

Last updated Apr 1, 2026

Compare and contrast key facts about Constellium SE (CSTM) and Century Aluminum Company (CENX).

Performance

CSTM vs. CENX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Constellium SE (CSTM) and Century Aluminum Company (CENX). The values are adjusted to include any dividend payments, if applicable.

CSTM vs. CENX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CSTM Constellium SE	30.40%	83.54%	-48.55%	68.72%	-33.95%	28.02%	4.40%	91.70%	-37.31%	88.98%
CENX Century Aluminum Company	49.80%	115.04%	50.08%	48.41%	-50.60%	50.14%	46.77%	2.80%	-62.78%	129.44%

Fundamentals

Market Cap CSTM : $3.49B CENX : $5.75B
EPS CSTM : $1.63 CENX : $0.12
PE Ratio CSTM : 15.04 CENX : 485.74
PEG Ratio CSTM : 0.24 CENX : 1.40
PS Ratio CSTM : 0.49 CENX : 2.25
PB Ratio CSTM : 4.31 CENX : 6.61
Total Revenue (TTM) CSTM : $7.19B CENX : $2.53B
Gross Profit (TTM) CSTM : $729.39M CENX : $264.10M
EBITDA (TTM) CSTM : $684.28M CENX : $165.90M

Returns By Period

In the year-to-date period, CSTM achieves a 30.40% return, which is significantly lower than CENX's 49.80% return. Over the past 10 years, CSTM has underperformed CENX with an annualized return of 17.03%, while CENX has yielded a comparatively higher 23.41% annualized return.

CSTM

• 1D: 6.59%
• 1M: -1.25%
• YTD: 30.40%
• 6M: 65.19%
• 1Y: 143.61%
• 3Y*: 17.17%
• 5Y*: 10.56%
• 10Y*: 17.03%

CENX

• 1D: 10.22%
• 1M: 13.83%
• YTD: 49.80%
• 6M: 99.90%
• 1Y: 216.22%
• 3Y*: 80.38%
• 5Y*: 27.75%
• 10Y*: 23.41%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

CSTM vs. CENX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

CSTM

CSTM Risk / Return Rank: 94
CSTM Sharpe Ratio Rank: 96
CSTM Sortino Ratio Rank: 94
CSTM Omega Ratio Rank: 91
CSTM Calmar Ratio Rank: 95
CSTM Martin Ratio Rank: 97

CENX

CENX Risk / Return Rank: 96
CENX Sharpe Ratio Rank: 97
CENX Sortino Ratio Rank: 94
CENX Omega Ratio Rank: 93
CENX Calmar Ratio Rank: 98
CENX Martin Ratio Rank: 98

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

CSTM vs. CENX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Constellium SE (CSTM) and Century Aluminum Company (CENX). 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.

	CSTM	CENX	Difference
Sharpe ratio Return per unit of total volatility	2.85	3.18	-0.32
Sortino ratio Return per unit of downside risk	3.30	3.41	-0.12
Omega ratio Gain probability vs. loss probability	1.41	1.44	-0.04
Calmar ratio Return relative to maximum drawdown	5.49	8.21	-2.72
Martin ratio Return relative to average drawdown	20.89	23.08	-2.20
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CSTM vs. CENX - Sharpe Ratio Comparison

The current CSTM Sharpe Ratio is 2.85, which is comparable to the CENX Sharpe Ratio of 3.18. The chart below compares the historical Sharpe Ratios of CSTM and CENX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CSTM	CENX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.85	3.18	-0.32
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.23	0.38	-0.15
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.30	0.33	-0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.07	0.07	0.00

Correlation

The correlation between CSTM and CENX is 0.47, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

CSTM vs. CENX - Dividend Comparison

Neither CSTM nor CENX has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

CSTM vs. CENX - Drawdown Comparison

The maximum CSTM drawdown since its inception was -88.70%, smaller than the maximum CENX drawdown of -98.67%. Use the drawdown chart below to compare losses from any high point for CSTM and CENX.

Drawdown Indicators

	CSTM	CENX	Difference
Max Drawdown Largest peak-to-trough decline	-88.70%	-98.67%	+9.97%
Max Drawdown (1Y) Largest decline over 1 year	-25.24%	-26.34%	+1.10%
Max Drawdown (5Y) Largest decline over 5 years	-66.35%	-82.10%	+15.75%
Max Drawdown (10Y) Largest decline over 10 years	-72.30%	-87.51%	+15.21%
Current Drawdown Current decline from peak	-24.11%	-26.63%	+2.52%
Average Drawdown Average peak-to-trough decline	-54.51%	-61.39%	+6.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.64%	9.37%	-2.73%

Volatility

CSTM vs. CENX - Volatility Comparison

The current volatility for Constellium SE (CSTM) is 16.98%, while Century Aluminum Company (CENX) has a volatility of 22.46%. This indicates that CSTM experiences smaller price fluctuations and is considered to be less risky than CENX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CSTM	CENX	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.98%	22.46%	-5.48%
Volatility (6M) Calculated over the trailing 6-month period	31.71%	50.22%	-18.51%
Volatility (1Y) Calculated over the trailing 1-year period	50.71%	68.52%	-17.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	46.36%	72.86%	-26.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	56.52%	70.73%	-14.21%

Financials

CSTM vs. CENX - Profitability Comparison

The chart below illustrates the profitability comparison between Constellium SE and Century Aluminum Company over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

CSTM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Constellium SE reported a gross profit of -110.61M and revenue of 942.94M. Therefore, the gross margin over that period was -11.7%.

CENX - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Century Aluminum Company reported a gross profit of 90.00M and revenue of 633.70M. Therefore, the gross margin over that period was 14.2%.

CSTM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Constellium SE reported an operating income of 88.42M and revenue of 942.94M, resulting in an operating margin of 9.4%.

CENX - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Century Aluminum Company reported an operating income of 40.70M and revenue of 633.70M, resulting in an operating margin of 6.4%.

CSTM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Constellium SE reported a net income of 71.35M and revenue of 942.94M, resulting in a net margin of 7.6%.

CENX - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Century Aluminum Company reported a net income of -28.30M and revenue of 633.70M, resulting in a net margin of -4.5%.