UFO vs. ARKX

Last updated Apr 2, 2026

Compare and contrast key facts about Procure Space ETF (UFO) and ARK Space Exploration & Innovation ETF (ARKX).

UFO and ARKX are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. UFO is a passively managed fund by ProcureAM that tracks the performance of the S-Network Space Index. It was launched on Apr 11, 2019. ARKX is an actively managed fund by ARK. It was launched on Mar 30, 2021.

Performance

UFO vs. ARKX - Performance Comparison

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

UFO vs. ARKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
UFO Procure Space ETF	19.69%	67.36%	27.22%	-2.34%	-25.85%	-3.69%
ARKX ARK Space Exploration & Innovation ETF	3.21%	48.46%	26.67%	24.37%	-34.27%	-7.14%

Returns By Period

In the year-to-date period, UFO achieves a 19.69% return, which is significantly higher than ARKX's 3.21% return.

UFO

• 1D: 3.24%
• 1M: 0.17%
• YTD: 19.69%
• 6M: 28.01%
• 1Y: 113.55%
• 3Y*: 36.32%
• 5Y*: 11.75%
• 10Y*: —

ARKX

• 1D: 1.91%
• 1M: -7.49%
• YTD: 3.21%
• 6M: 3.53%
• 1Y: 68.32%
• 3Y*: 28.79%
• 5Y*: 7.42%
• 10Y*: —

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

UFO vs. ARKX - Expense Ratio Comparison

Both UFO and ARKX have an expense ratio of 0.75%.

UFO

Procure Space ETF

ARKX

ARK Space Exploration & Innovation ETF

Return for Risk

UFO vs. ARKX — Risk / Return Rank

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

UFO

UFO Risk / Return Rank: 96
UFO Sharpe Ratio Rank: 97
UFO Sortino Ratio Rank: 97
UFO Omega Ratio Rank: 94
UFO Calmar Ratio Rank: 97
UFO Martin Ratio Rank: 95

ARKX

ARKX Risk / Return Rank: 86
ARKX Sharpe Ratio Rank: 89
ARKX Sortino Ratio Rank: 90
ARKX Omega Ratio Rank: 80
ARKX Calmar Ratio Rank: 92
ARKX Martin Ratio Rank: 82

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.

UFO vs. ARKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Procure Space ETF (UFO) 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.

	UFO	ARKX	Difference
Sharpe ratio Return per unit of total volatility	3.09	1.98	+1.11
Sortino ratio Return per unit of downside risk	3.59	2.60	+0.99
Omega ratio Gain probability vs. loss probability	1.44	1.32	+0.12
Calmar ratio Return relative to maximum drawdown	5.04	3.36	+1.68
Martin ratio Return relative to average drawdown	16.53	9.46	+7.07
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

UFO vs. ARKX - Sharpe Ratio Comparison

The current UFO Sharpe Ratio is 3.09, which is higher than the ARKX Sharpe Ratio of 1.98. The chart below compares the historical Sharpe Ratios of UFO and ARKX, 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

	UFO	ARKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.09	1.98	+1.11
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	0.27	+0.14
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.30	+0.06

Correlation

The correlation between UFO and ARKX is 0.83, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

UFO vs. ARKX - Dividend Comparison

UFO's dividend yield for the trailing twelve months is around 0.36%, while ARKX has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019
UFO Procure Space ETF	0.36%	0.46%	1.98%	1.90%	3.19%	1.00%	1.07%	0.45%
ARKX ARK Space Exploration & Innovation ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

UFO vs. ARKX - Drawdown Comparison

The maximum UFO drawdown since its inception was -50.33%, which is greater than ARKX's maximum drawdown of -43.61%. Use the drawdown chart below to compare losses from any high point for UFO and ARKX.

Drawdown Indicators

	UFO	ARKX	Difference
Max Drawdown Largest peak-to-trough decline	-50.33%	-43.61%	-6.72%
Max Drawdown (1Y) Largest decline over 1 year	-21.95%	-20.42%	-1.53%
Max Drawdown (5Y) Largest decline over 5 years	-50.33%	-43.61%	-6.72%
Current Drawdown Current decline from peak	-3.93%	-14.96%	+11.03%
Average Drawdown Average peak-to-trough decline	-22.29%	-20.49%	-1.80%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.69%	7.25%	-0.56%

Volatility

UFO vs. ARKX - Volatility Comparison

Procure Space ETF (UFO) has a higher volatility of 13.18% compared to ARK Space Exploration & Innovation ETF (ARKX) at 11.25%. This indicates that UFO's price experiences larger fluctuations and is considered to be riskier than ARKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	UFO	ARKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.18%	11.25%	+1.93%
Volatility (6M) Calculated over the trailing 6-month period	28.74%	25.62%	+3.12%
Volatility (1Y) Calculated over the trailing 1-year period	37.01%	34.73%	+2.28%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.84%	27.20%	+1.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.21%	27.20%	+3.01%