TNUK vs. CRAK

Last updated Jun 5, 2026

TNUK (Tortoise Nuclear Renaissance ETF) and CRAK (VanEck Oil Refiners ETF) are both Energy Equities funds. TNUK is actively managed, while CRAK is passively managed. At a 0.12 correlation, their price movements are largely independent. TNUK charges 0.75%/yr vs 0.62%/yr for CRAK.

Performance

TNUK vs. CRAK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Tortoise Nuclear Renaissance ETF (TNUK) and VanEck Oil Refiners ETF (CRAK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TNUK achieves a 4.10% return, which is significantly lower than CRAK's 32.89% return.

TNUK

• 1D: 0.18%
• 1M: -7.01%
• YTD: 4.10%
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

CRAK

• 1D: -0.26%
• 1M: -4.06%
• YTD: 32.89%
• 6M: 27.88%
• 1Y: 67.73%
• 3Y*: 22.75%
• 5Y*: 13.48%
• 10Y*: 13.22%

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

TNUK vs. CRAK - Yearly Performance Comparison

	2026 (YTD)	2025
TNUK Tortoise Nuclear Renaissance ETF	4.10%	0.02%
CRAK VanEck Oil Refiners ETF	32.89%	0.97%

Correlation

The correlation between TNUK and CRAK is 0.12, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Dec 19, 2025	0.12

Return for Risk

TNUK vs. CRAK — Risk / Return Rank

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

CRAK

CRAK Risk / Return Rank: 93
CRAK Sharpe Ratio Rank: 95
CRAK Sortino Ratio Rank: 94
CRAK Omega Ratio Rank: 92
CRAK Calmar Ratio Rank: 95
CRAK Martin Ratio Rank: 92

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.

TNUK vs. CRAK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tortoise Nuclear Renaissance ETF (TNUK) and VanEck Oil Refiners ETF (CRAK). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	TNUK	CRAK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	3.71	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.66	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.60	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.28	0.54	-0.26

Drawdowns

TNUK vs. CRAK - Drawdown Comparison

The maximum TNUK drawdown since its inception was -17.94%, smaller than the maximum CRAK drawdown of -58.80%. Use the drawdown chart below to compare losses from any high point for TNUK and CRAK.

Drawdown Indicators

	TNUK	CRAK	Difference
Max Drawdown Largest peak-to-trough decline	-17.94%	-58.80%	+40.86%
Max Drawdown (1Y) Largest decline over 1 year	—	-8.57%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-35.61%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-35.61%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-58.80%	—
Current Drawdown Current decline from peak	-13.08%	-4.06%	-9.02%
Average Drawdown Average peak-to-trough decline	-7.76%	-12.49%	+4.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	3.03%	—

Volatility

Volatility by Period

	TNUK	CRAK	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	6.36%	—
Volatility (6M) Calculated over the trailing 6-month period	—	14.26%	—
Volatility (1Y) Calculated over the trailing 1-year period	34.07%	18.34%	+15.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.07%	20.61%	+13.46%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	34.07%	22.16%	+11.91%

TNUK vs. CRAK - Expense Ratio Comparison

TNUK has a 0.75% expense ratio, which is higher than CRAK's 0.62% expense ratio.

Dividends

TNUK vs. CRAK - Dividend Comparison

TNUK has not paid dividends to shareholders, while CRAK's dividend yield for the trailing twelve months is around 1.52%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CRAK VanEck Oil Refiners ETF	1.52%	2.02%	5.60%	3.65%	3.08%	2.40%	2.64%	1.49%	2.42%	1.66%	3.42%	0.47%
TNUK Tortoise Nuclear Renaissance ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both TNUK and CRAK in my portfolio?

TNUK and CRAK have a correlation of 0.12, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, TNUK or CRAK?

On fees, CRAK is cheaper at 0.62% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, TNUK or CRAK?

CRAK is cheaper with a 0.62% expense ratio, compared with 0.75% for TNUK.

Which ETF pays a higher dividend yield, TNUK or CRAK?

CRAK has the higher dividend yield at 1.52%, compared with 0.00% for TNUK.

What is the main difference between TNUK and CRAK?

They also come from different issuers: Tortoise and VanEck. Their fees differ too: 0.75% for TNUK and 0.62% for CRAK.