CLNE vs. ARAAF

Last updated Jun 4, 2026

CLNE (Clean Energy Fuels Corp.) and ARAAF (Aclara Resources Inc) are both stocks. CLNE operates in Oil & Gas Refining & Marketing (Energy), while ARAAF operates in Other Industrial Metals & Mining (Basic Materials). Over the past 3 years, CLNE returned -22.21%/yr vs 112.11%/yr for ARAAF. At a 0.07 correlation, their price movements are largely independent.

Performance

CLNE vs. ARAAF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Clean Energy Fuels Corp. (CLNE) and Aclara Resources Inc (ARAAF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CLNE achieves a -4.29% return, which is significantly lower than ARAAF's 111.46% return.

CLNE

• 1D: -4.74%
• 1M: -16.94%
• YTD: -4.29%
• 6M: -12.61%
• 1Y: 7.49%
• 3Y*: -22.21%
• 5Y*: -26.40%
• 10Y*: -5.53%

ARAAF

• 1D: -3.47%
• 1M: -3.84%
• YTD: 111.46%
• 6M: 73.06%
• 1Y: 484.53%
• 3Y*: 112.11%
• 5Y*: —
• 10Y*: —

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

CLNE vs. ARAAF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
CLNE Clean Energy Fuels Corp.	-4.29%	-16.33%	-34.46%	-26.35%	-15.17%	0.33%
ARAAF Aclara Resources Inc	111.46%	404.63%	-11.58%	49.59%	-78.68%	-7.97%

Correlation

The correlation between CLNE and ARAAF is 0.14, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.14
Correlation (3Y) Calculated over the trailing 3-year period	0.07
Correlation (All Time) Calculated using the full available price history since Dec 30, 2021	0.07

Fundamentals

Market Cap CLNE : $441.53M ARAAF : $736.65M
EPS CLNE : -$0.45 ARAAF : -$0.05
PB Ratio CLNE : 0.79 ARAAF : 4.85
Total Revenue (TTM) CLNE : $438.94M ARAAF : $0.00
Gross Profit (TTM) CLNE : $51.37M ARAAF : -$1.03M
EBITDA (TTM) CLNE : -$13.12M ARAAF : -$9.35M

Return for Risk

CLNE vs. ARAAF — Risk / Return Rank

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

CLNE

CLNE Risk / Return Rank: 45
CLNE Sharpe Ratio Rank: 46
CLNE Sortino Ratio Rank: 44
CLNE Omega Ratio Rank: 43
CLNE Calmar Ratio Rank: 46
CLNE Martin Ratio Rank: 45

ARAAF

ARAAF Risk / Return Rank: 95
ARAAF Sharpe Ratio Rank: 98
ARAAF Sortino Ratio Rank: 94
ARAAF Omega Ratio Rank: 91
ARAAF Calmar Ratio Rank: 96
ARAAF Martin Ratio Rank: 94

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.

CLNE vs. ARAAF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Clean Energy Fuels Corp. (CLNE) and Aclara Resources Inc (ARAAF). 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.

	CLNE	ARAAF	Difference
Sharpe ratio Return per unit of total volatility	0.14	4.23	-4.09
Sortino ratio Return per unit of downside risk	0.60	3.88	-3.28
Omega ratio Gain probability vs. loss probability	1.07	1.46	-0.39
Calmar ratio Return relative to maximum drawdown	0.22	8.59	-8.37
Martin ratio Return relative to average drawdown	0.37	17.63	-17.26
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CLNE vs. ARAAF - Sharpe Ratio Comparison

The current CLNE Sharpe Ratio is 0.14, which is lower than the ARAAF Sharpe Ratio of 4.23. The chart below compares the historical Sharpe Ratios of CLNE and ARAAF, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	CLNE	ARAAF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.14	4.23	-4.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.40	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.08	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.13	0.22	-0.35

Drawdowns

CLNE vs. ARAAF - Drawdown Comparison

The maximum CLNE drawdown since its inception was -95.48%, which is greater than ARAAF's maximum drawdown of -84.58%. Use the drawdown chart below to compare losses from any high point for CLNE and ARAAF.

Drawdown Indicators

	CLNE	ARAAF	Difference
Max Drawdown Largest peak-to-trough decline	-95.48%	-84.58%	-10.90%
Max Drawdown (1Y) Largest decline over 1 year	-34.97%	-56.89%	+21.92%
Max Drawdown (3Y) Largest decline over 3 years	-74.37%	-56.89%	-17.48%
Max Drawdown (5Y) Largest decline over 5 years	-89.86%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-92.92%	—	—
Current Drawdown Current decline from peak	-91.60%	-12.57%	-79.03%
Average Drawdown Average peak-to-trough decline	-66.47%	-58.39%	-8.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	20.23%	27.67%	-7.44%

Volatility

CLNE vs. ARAAF - Volatility Comparison

The current volatility for Clean Energy Fuels Corp. (CLNE) is 12.22%, while Aclara Resources Inc (ARAAF) has a volatility of 19.40%. This indicates that CLNE experiences smaller price fluctuations and is considered to be less risky than ARAAF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CLNE	ARAAF	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.22%	19.40%	-7.18%
Volatility (6M) Calculated over the trailing 6-month period	32.35%	61.62%	-29.27%
Volatility (1Y) Calculated over the trailing 1-year period	54.80%	115.54%	-60.74%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	65.86%	118.71%	-52.85%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	71.37%	118.71%	-47.34%

Dividends

CLNE vs. ARAAF - Dividend Comparison

Neither CLNE nor ARAAF has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both CLNE and ARAAF in my portfolio?

CLNE and ARAAF have a correlation of 0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CLNE or ARAAF?

ARAAF has higher volatility (19.40%) compared to CLNE (12.22%). In terms of maximum drawdown, CLNE dropped -95.48% vs ARAAF's -84.58%.

Which has better risk-adjusted returns?

ARAAF currently has the higher Sharpe Ratio (4.23 vs 0.14), 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.