NUKZ vs. ARKX

Last updated Jun 13, 2026

NUKZ (Range Nuclear Renaissance ETF) and ARKX (ARK Space Exploration & Innovation ETF) are both exchange-traded funds - NUKZ is a Energy Equities fund tracking the Range Nuclear Renaissance Index, while ARKX is a Aerospace & Defense fund actively managed by ARK. NUKZ is passively managed, while ARKX is actively managed. Over the past year, NUKZ returned 27.91% vs 52.99% for ARKX. A 0.68 correlation means they provide meaningful diversification when combined. NUKZ charges 0.85%/yr vs 0.75%/yr for ARKX.

Performance

NUKZ vs. ARKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Range Nuclear Renaissance ETF (NUKZ) and ARK Space Exploration & Innovation ETF (ARKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NUKZ achieves a 7.57% return, which is significantly lower than ARKX's 16.56% return.

NUKZ

• 1D: 1.59%
• 1M: -5.07%
• YTD: 7.57%
• 6M: 4.81%
• 1Y: 27.91%
• 3Y*: —
• 5Y*: —
• 10Y*: —

ARKX

• 1D: -1.94%
• 1M: -2.96%
• YTD: 16.56%
• 6M: 17.78%
• 1Y: 52.99%
• 3Y*: 31.55%
• 5Y*: 10.38%
• 10Y*: —

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

NUKZ vs. ARKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
NUKZ Range Nuclear Renaissance ETF	7.57%	56.57%	60.11%
ARKX ARK Space Exploration & Innovation ETF	16.56%	48.46%	32.97%

Correlation

The correlation between NUKZ and ARKX is 0.75, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.75
Correlation (All Time) Calculated using the full available price history since Jan 24, 2024	0.68

The correlation between NUKZ and ARKX has been stable across timeframes, ranging from 0.68 to 0.75 - a consistent structural relationship.

NUKZ vs. ARKX - Sectors Allocation Comparison

Sectors	NUKZ	ARKX
Industrials	45.9%	55.7%
Utilities	35.8%	-
Energy	12.9%	-
Basic Materials	4.0%	0.0%
Technology	1.4%	27.4%
Communication Services	-	7.6%
Consumer Cyclical	-	7.8%
Consumer Defensive	-	-
Financial Services	-	-
Healthcare	-	1.5%
Real Estate	-	-

Return for Risk

NUKZ vs. ARKX — Risk / Return Rank

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

NUKZ

NUKZ Risk / Return Rank: 31
NUKZ Sharpe Ratio Rank: 29
NUKZ Sortino Ratio Rank: 30
NUKZ Omega Ratio Rank: 27
NUKZ Calmar Ratio Rank: 39
NUKZ Martin Ratio Rank: 32

ARKX

ARKX Risk / Return Rank: 51
ARKX Sharpe Ratio Rank: 53
ARKX Sortino Ratio Rank: 50
ARKX Omega Ratio Rank: 45
ARKX Calmar Ratio Rank: 60
ARKX Martin Ratio Rank: 47

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.

NUKZ vs. ARKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Range Nuclear Renaissance ETF (NUKZ) and ARK Space Exploration & Innovation ETF (ARKX). 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.

	NUKZ	ARKX	Difference
Sharpe ratio: Return per unit of total volatility	0.92	1.59	-0.67
Sortino ratio: Return per unit of downside risk	1.43	2.15	-0.72
Omega ratio: Gain probability vs. loss probability	1.17	1.26	-0.09
Calmar ratio: Return relative to maximum drawdown	1.70	2.61	-0.91
Martin ratio: Return relative to average drawdown	4.11	6.87	-2.75

NUKZ vs. ARKX - Sharpe Ratio Comparison

The current NUKZ Sharpe Ratio is 0.92, which is lower than the ARKX Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of NUKZ and ARKX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

NUKZ vs. ARKX - Drawdown Comparison

The maximum NUKZ drawdown since its inception was -33.03%, smaller than the maximum ARKX drawdown of -43.61%. Use the drawdown chart below to compare losses from any high point for NUKZ and ARKX.

Drawdown Indicators

	NUKZ	ARKX	Difference
Max Drawdown Largest peak-to-trough decline	-33.03%	-43.61%	+10.58%
Max Drawdown (1Y) Largest decline over 1 year	-16.51%	-20.42%	+3.91%
Max Drawdown (3Y) Largest decline over 3 years	—	-25.47%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-43.61%	—
Current Drawdown Current decline from peak	-10.39%	-10.49%	+0.10%
Average Drawdown Average peak-to-trough decline	-6.06%	-19.92%	+13.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.80%	7.74%	-0.94%

Volatility

NUKZ vs. ARKX - Volatility Comparison

The current volatility for Range Nuclear Renaissance ETF (NUKZ) is 11.24%, while ARK Space Exploration & Innovation ETF (ARKX) has a volatility of 12.77%. This indicates that NUKZ experiences smaller price fluctuations and is considered to be less risky than ARKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NUKZ	ARKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.24%	12.77%	-1.53%
Volatility (6M) Calculated over the trailing 6-month period	23.34%	26.51%	-3.17%
Volatility (1Y) Calculated over the trailing 1-year period	30.46%	33.50%	-3.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	32.94%	28.02%	+4.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.94%	27.65%	+5.29%

NUKZ vs. ARKX - Expense Ratio Comparison

NUKZ has a 0.85% expense ratio, which is higher than ARKX's 0.75% expense ratio.

Dividends

NUKZ vs. ARKX - Dividend Comparison

NUKZ's dividend yield for the trailing twelve months is around 0.85%, while ARKX has not paid dividends to shareholders.

Position	TTM	2025	2024
ARKX ARK Space Exploration & Innovation ETF	0.00%	0.00%	0.00%
NUKZ Range Nuclear Renaissance ETF	0.85%	0.91%	0.09%

Frequently Asked Questions

Can I hold both NUKZ and ARKX in my portfolio?

NUKZ and ARKX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NUKZ or ARKX?

ARKX has higher volatility (12.77%) compared to NUKZ (11.24%). In terms of maximum drawdown, NUKZ dropped -33.03% vs ARKX's -43.61%.

Which ETF is better, NUKZ or ARKX?

On 1-year performance, ARKX leads with 52.99% vs 27.91% for NUKZ. On fees, ARKX is cheaper at 0.75% per year. On volatility, NUKZ has been the lower-risk option at 11.24%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, NUKZ or ARKX?

Over the 1-year period, ARKX has performed better with a 52.99% return vs 27.91%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, NUKZ or ARKX?

ARKX is cheaper with a 0.75% expense ratio, compared with 0.85% for NUKZ.

Which ETF pays a higher dividend yield, NUKZ or ARKX?

NUKZ has the higher dividend yield at 0.85%, compared with 0.00% for ARKX.

What is the main difference between NUKZ and ARKX?

NUKZ is categorized as Energy Equities, while ARKX is Aerospace & Defense. They also come from different issuers: Exchange Traded Concepts and ARK. Their fees differ too: 0.85% for NUKZ and 0.75% for ARKX.

Which has better risk-adjusted returns?

ARKX currently has the higher Sharpe Ratio (1.59 vs 0.92), 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.