UFO vs. ARKX

Last updated Jun 13, 2026

UFO (Procure Space ETF) and ARKX (ARK Space Exploration & Innovation ETF) are both exchange-traded funds - UFO is a Global Equities fund tracking the S-Network Space Index, while ARKX is a Aerospace & Defense fund actively managed by ARK. UFO is passively managed, while ARKX is actively managed. Over the past 5 years, UFO returned 13.50%/yr vs 10.38%/yr for ARKX. Their correlation of 0.83 suggests significant overlap in exposure. Both charge a 0.75% expense ratio.

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.

Returns By Period

In the year-to-date period, UFO achieves a 36.92% return, which is significantly higher than ARKX's 16.56% return.

UFO

• 1D: -6.99%
• 1M: -6.10%
• YTD: 36.92%
• 6M: 37.68%
• 1Y: 104.39%
• 3Y*: 41.51%
• 5Y*: 13.50%
• 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)

UFO vs. ARKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
UFO Procure Space ETF	36.92%	67.36%	27.22%	-2.34%	-25.85%	-3.45%
ARKX ARK Space Exploration & Innovation ETF	16.56%	48.46%	26.67%	24.37%	-34.27%	-8.05%

Correlation

The correlation between UFO and ARKX is 0.87, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.87
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.83
Correlation (All Time) Calculated using the full available price history since Mar 30, 2021	0.83

The correlation between UFO and ARKX has been stable across timeframes, ranging from 0.82 to 0.87 - a consistent structural relationship.

UFO vs. ARKX - Sectors Allocation Comparison

Sectors	UFO	ARKX
Industrials	47.2%	55.7%
Communication Services	30.8%	7.6%
Technology	22.0%	27.4%
Basic Materials	-	0.0%
Consumer Cyclical	-	7.8%
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Healthcare	-	1.5%
Real Estate	-	-
Utilities	-	-

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: 83
UFO Sharpe Ratio Rank: 89
UFO Sortino Ratio Rank: 80
UFO Omega Ratio Rank: 73
UFO Calmar Ratio Rank: 89
UFO Martin Ratio Rank: 82

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.

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.

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.

	UFO	ARKX	Difference
Sharpe ratio: Return per unit of total volatility	2.58	1.59	+0.99
Sortino ratio: Return per unit of downside risk	3.06	2.15	+0.91
Omega ratio: Gain probability vs. loss probability	1.37	1.26	+0.12
Calmar ratio: Return relative to maximum drawdown	4.58	2.61	+1.97
Martin ratio: Return relative to average drawdown	14.05	6.87	+7.18

UFO vs. ARKX - Sharpe Ratio Comparison

The current UFO Sharpe Ratio is 2.58, which is higher than the ARKX Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of UFO 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

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	-22.94%	-20.42%	-2.52%
Max Drawdown (3Y) Largest decline over 3 years	-25.91%	-25.47%	-0.44%
Max Drawdown (5Y) Largest decline over 5 years	-50.33%	-43.61%	-6.72%
Current Drawdown Current decline from peak	-21.95%	-10.49%	-11.46%
Average Drawdown Average peak-to-trough decline	-21.80%	-19.92%	-1.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.46%	7.74%	-0.28%

Volatility

UFO vs. ARKX - Volatility Comparison

Procure Space ETF (UFO) has a higher volatility of 20.43% compared to ARK Space Exploration & Innovation ETF (ARKX) at 12.77%. 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	20.43%	12.77%	+7.66%
Volatility (6M) Calculated over the trailing 6-month period	34.11%	26.51%	+7.60%
Volatility (1Y) Calculated over the trailing 1-year period	40.69%	33.50%	+7.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.59%	28.02%	+2.57%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.16%	27.65%	+3.51%

UFO vs. ARKX - Expense Ratio Comparison

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

Dividends

UFO vs. ARKX - Dividend Comparison

UFO's dividend yield for the trailing twelve months is around 0.31%, while ARKX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
ARKX ARK Space Exploration & Innovation ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
UFO Procure Space ETF	0.31%	0.46%	1.98%	1.90%	3.19%	1.00%	1.07%	0.45%

Frequently Asked Questions

Can I hold both UFO and ARKX in my portfolio?

UFO and ARKX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, UFO or ARKX?

UFO has higher volatility (20.43%) compared to ARKX (12.77%). In terms of maximum drawdown, UFO dropped -50.33% vs ARKX's -43.61%.

Which ETF is better, UFO or ARKX?

On 5-year performance, UFO leads with 13.50% vs 10.38% for ARKX. Both ETFs have the same 0.75% expense ratio. On volatility, ARKX has been the lower-risk option at 12.77%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, UFO or ARKX?

Over the 5-year period, UFO has performed better with a 13.50% return vs 10.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, UFO or ARKX?

UFO and ARKX have the same expense ratio: 0.75% per year.

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

UFO has the higher dividend yield at 0.31%, compared with 0.00% for ARKX.

What is the main difference between UFO and ARKX?

UFO is categorized as Global Equities, while ARKX is Aerospace & Defense. They also come from different issuers: ProcureAM and ARK.

Which has better risk-adjusted returns?

UFO currently has the higher Sharpe Ratio (2.58 vs 1.59), 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.