NUKZ vs. ROBO

Last updated Jun 4, 2026

NUKZ (Range Nuclear Renaissance ETF) and ROBO (ROBO Global Robotics & Automation Index ETF) are both exchange-traded funds - NUKZ is a Energy Equities fund tracking the Range Nuclear Renaissance Index, while ROBO is a Robotics fund tracking the ROBO Global Robotics and Automation TR Index. Both are passively managed. Over the past year, NUKZ returned 41.42% vs 59.43% for ROBO. A 0.68 correlation means they provide meaningful diversification when combined. NUKZ charges 0.85%/yr vs 0.95%/yr for ROBO.

Performance

NUKZ vs. ROBO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Range Nuclear Renaissance ETF (NUKZ) and ROBO Global Robotics & Automation Index ETF (ROBO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NUKZ achieves a 13.31% return, which is significantly lower than ROBO's 29.33% return.

NUKZ

• 1D: -2.59%
• 1M: -0.90%
• YTD: 13.31%
• 6M: 10.66%
• 1Y: 41.42%
• 3Y*: —
• 5Y*: —
• 10Y*: —

ROBO

• 1D: -0.77%
• 1M: 10.56%
• YTD: 29.33%
• 6M: 30.40%
• 1Y: 59.43%
• 3Y*: 17.13%
• 5Y*: 7.13%
• 10Y*: 13.65%

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

NUKZ vs. ROBO - Yearly Performance Comparison

	2026 (YTD)	2025	2024
NUKZ Range Nuclear Renaissance ETF	13.31%	56.57%	62.98%
ROBO ROBO Global Robotics & Automation Index ETF	29.33%	23.71%	1.19%

Correlation

The correlation between NUKZ and ROBO is 0.72, 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	0.72
Correlation (All Time) Calculated using the full available price history since Jan 25, 2024	0.68

The correlation between NUKZ and ROBO has been stable across timeframes, ranging from 0.68 to 0.72 - a consistent structural relationship.

NUKZ vs. ROBO - Sectors Allocation Comparison

Sectors	NUKZ	ROBO
Industrials	45.9%	46.8%
Utilities	35.8%	-
Energy	12.9%	-
Basic Materials	4.0%	-
Technology	1.4%	41.9%
Communication Services	-	1.1%
Consumer Cyclical	-	3.1%
Consumer Defensive	-	1.3%
Financial Services	-	2.2%
Healthcare	-	4.9%
Real Estate	-	-

Return for Risk

NUKZ vs. ROBO — Risk / Return Rank

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

NUKZ

NUKZ Risk / Return Rank: 40
NUKZ Sharpe Ratio Rank: 38
NUKZ Sortino Ratio Rank: 38
NUKZ Omega Ratio Rank: 34
NUKZ Calmar Ratio Rank: 50
NUKZ Martin Ratio Rank: 39

ROBO

ROBO Risk / Return Rank: 72
ROBO Sharpe Ratio Rank: 78
ROBO Sortino Ratio Rank: 74
ROBO Omega Ratio Rank: 70
ROBO Calmar Ratio Rank: 68
ROBO Martin Ratio Rank: 72

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. ROBO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Range Nuclear Renaissance ETF (NUKZ) and ROBO Global Robotics & Automation Index ETF (ROBO). 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.

	NUKZ	ROBO	Difference
Sharpe ratio: Return per unit of total volatility	1.40	2.60	-1.20
Sortino ratio: Return per unit of downside risk	2.02	3.41	-1.39
Omega ratio: Gain probability vs. loss probability	1.23	1.43	-0.19
Calmar ratio: Return relative to maximum drawdown	2.52	3.44	-0.92
Martin ratio: Return relative to average drawdown	6.34	13.77	-7.43
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NUKZ vs. ROBO - Sharpe Ratio Comparison

The current NUKZ Sharpe Ratio is 1.40, which is lower than the ROBO Sharpe Ratio of 2.60. The chart below compares the historical Sharpe Ratios of NUKZ and ROBO, 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

	NUKZ	ROBO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.40	2.60	-1.20
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.30	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.59	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.75	0.50	+1.26

Drawdowns

NUKZ vs. ROBO - Drawdown Comparison

The maximum NUKZ drawdown since its inception was -33.03%, smaller than the maximum ROBO drawdown of -43.65%. Use the drawdown chart below to compare losses from any high point for NUKZ and ROBO.

Drawdown Indicators

	NUKZ	ROBO	Difference
Max Drawdown Largest peak-to-trough decline	-33.03%	-43.65%	+10.62%
Max Drawdown (1Y) Largest decline over 1 year	-16.51%	-17.35%	+0.84%
Max Drawdown (3Y) Largest decline over 3 years	—	-27.92%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-43.65%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-43.65%	—
Current Drawdown Current decline from peak	-5.61%	-0.77%	-4.84%
Average Drawdown Average peak-to-trough decline	-6.01%	-12.93%	+6.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.55%	4.33%	+2.22%

Volatility

NUKZ vs. ROBO - Volatility Comparison

Range Nuclear Renaissance ETF (NUKZ) has a higher volatility of 10.30% compared to ROBO Global Robotics & Automation Index ETF (ROBO) at 7.64%. This indicates that NUKZ's price experiences larger fluctuations and is considered to be riskier than ROBO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NUKZ	ROBO	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.30%	7.64%	+2.66%
Volatility (6M) Calculated over the trailing 6-month period	22.05%	18.06%	+3.99%
Volatility (1Y) Calculated over the trailing 1-year period	29.74%	23.01%	+6.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	32.70%	23.63%	+9.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.70%	23.16%	+9.54%

NUKZ vs. ROBO - Expense Ratio Comparison

NUKZ has a 0.85% expense ratio, which is lower than ROBO's 0.95% expense ratio.

Dividends

NUKZ vs. ROBO - Dividend Comparison

NUKZ's dividend yield for the trailing twelve months is around 0.80%, more than ROBO's 0.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NUKZ Range Nuclear Renaissance ETF	0.80%	0.91%	0.09%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
ROBO ROBO Global Robotics & Automation Index ETF	0.33%	0.42%	0.55%	0.05%	0.00%	0.18%	0.20%	0.37%	0.37%	0.02%	0.19%	0.28%

Frequently Asked Questions

Can I hold both NUKZ and ROBO in my portfolio?

NUKZ and ROBO have a correlation of 0.72, 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 ROBO?

NUKZ has higher volatility (10.30%) compared to ROBO (7.64%). In terms of maximum drawdown, NUKZ dropped -33.03% vs ROBO's -43.65%.

Which ETF is better, NUKZ or ROBO?

On 1-year performance, ROBO leads with 59.43% vs 41.42% for NUKZ. On fees, NUKZ is cheaper at 0.85% per year. On volatility, ROBO has been the lower-risk option at 7.64%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, NUKZ or ROBO?

Over the 1-year period, ROBO has performed better with a 59.43% return vs 41.42%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, NUKZ or ROBO?

NUKZ is cheaper with a 0.85% expense ratio, compared with 0.95% for ROBO.

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

NUKZ has the higher dividend yield at 0.80%, compared with 0.33% for ROBO.

What is the main difference between NUKZ and ROBO?

NUKZ is categorized as Energy Equities, while ROBO is Robotics. NUKZ tracks Range Nuclear Renaissance Index, while ROBO tracks ROBO Global Robotics and Automation TR Index. Their fees differ too: 0.85% for NUKZ and 0.95% for ROBO.

Which has better risk-adjusted returns?

ROBO currently has the higher Sharpe Ratio (2.60 vs 1.40), 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.