ROBO vs. NUKZ

Last updated Apr 1, 2026

Compare and contrast key facts about ROBO Global Robotics & Automation Index ETF (ROBO) and Range Nuclear Renaissance ETF (NUKZ).

ROBO and NUKZ are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. ROBO is a passively managed fund by Exchange Traded Concepts that tracks the performance of the ROBO Global Robotics and Automation TR Index. It was launched on Oct 22, 2013. NUKZ is a passively managed fund by Exchange Traded Concepts that tracks the performance of the Range Nuclear Renaissance Index. It was launched on Jan 23, 2024. Both ROBO and NUKZ are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

ROBO vs. NUKZ - Performance Comparison

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

ROBO vs. NUKZ - Yearly Performance Comparison

	2026 (YTD)	2025	2024
ROBO ROBO Global Robotics & Automation Index ETF	-1.27%	23.71%	1.19%
NUKZ Range Nuclear Renaissance ETF	3.57%	56.57%	62.98%

Returns By Period

In the year-to-date period, ROBO achieves a -1.27% return, which is significantly lower than NUKZ's 3.57% return.

ROBO

• 1D: 4.04%
• 1M: -12.73%
• YTD: -1.27%
• 6M: 4.82%
• 1Y: 33.43%
• 3Y*: 8.10%
• 5Y*: 1.33%
• 10Y*: 11.09%

NUKZ

• 1D: 3.64%
• 1M: -10.35%
• YTD: 3.57%
• 6M: 2.03%
• 1Y: 74.03%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ROBO vs. NUKZ - Expense Ratio Comparison

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

ROBO

ROBO Global Robotics & Automation Index ETF

NUKZ

Range Nuclear Renaissance ETF

Return for Risk

ROBO vs. NUKZ — Risk / Return Rank

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

ROBO

ROBO Risk / Return Rank: 74
ROBO Sharpe Ratio Rank: 75
ROBO Sortino Ratio Rank: 76
ROBO Omega Ratio Rank: 72
ROBO Calmar Ratio Rank: 74
ROBO Martin Ratio Rank: 72

NUKZ

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

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.

ROBO vs. NUKZ - Risk-Adjusted Trends Comparison

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

	ROBO	NUKZ	Difference
Sharpe ratio Return per unit of total volatility	1.29	2.35	-1.06
Sortino ratio Return per unit of downside risk	1.85	3.02	-1.18
Omega ratio Gain probability vs. loss probability	1.25	1.38	-0.13
Calmar ratio Return relative to maximum drawdown	1.81	4.34	-2.53
Martin ratio Return relative to average drawdown	6.94	11.46	-4.53
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ROBO vs. NUKZ - Sharpe Ratio Comparison

The current ROBO Sharpe Ratio is 1.29, which is lower than the NUKZ Sharpe Ratio of 2.35. The chart below compares the historical Sharpe Ratios of ROBO and NUKZ, 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

	ROBO	NUKZ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.29	2.35	-1.06
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.06	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.48	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.40	1.73	-1.34

Correlation

The correlation between ROBO and NUKZ is 0.67, 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

ROBO vs. NUKZ - Dividend Comparison

ROBO's dividend yield for the trailing twelve months is around 0.43%, less than NUKZ's 0.88% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ROBO ROBO Global Robotics & Automation Index ETF	0.43%	0.42%	0.55%	0.05%	0.00%	0.18%	0.20%	0.37%	0.37%	0.02%	0.19%	0.28%
NUKZ Range Nuclear Renaissance ETF	0.88%	0.91%	0.09%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

ROBO vs. NUKZ - Drawdown Comparison

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

Drawdown Indicators

	ROBO	NUKZ	Difference
Max Drawdown Largest peak-to-trough decline	-43.65%	-33.03%	-10.62%
Max Drawdown (1Y) Largest decline over 1 year	-17.35%	-16.51%	-0.84%
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	-14.01%	-11.55%	-2.46%
Average Drawdown Average peak-to-trough decline	-13.08%	-6.09%	-6.99%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.53%	6.25%	-1.72%

Volatility

ROBO vs. NUKZ - Volatility Comparison

ROBO Global Robotics & Automation Index ETF (ROBO) and Range Nuclear Renaissance ETF (NUKZ) have volatilities of 10.09% and 10.20%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ROBO	NUKZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.09%	10.20%	-0.11%
Volatility (6M) Calculated over the trailing 6-month period	17.13%	21.54%	-4.41%
Volatility (1Y) Calculated over the trailing 1-year period	26.06%	31.75%	-5.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.32%	32.60%	-9.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.94%	32.60%	-9.66%