SPMO vs. ARKX

Last updated Jun 13, 2026

SPMO (Invesco S&P 500 Momentum ETF) and ARKX (ARK Space Exploration & Innovation ETF) are both exchange-traded funds - SPMO is a Momentum fund tracking the S&P 500 Momentum Index, while ARKX is a Aerospace & Defense fund actively managed by ARK. SPMO is passively managed, while ARKX is actively managed. Over the past 5 years, SPMO returned 23.50%/yr vs 10.38%/yr for ARKX. A 0.66 correlation means they provide meaningful diversification when combined. SPMO charges 0.13%/yr vs 0.75%/yr for ARKX.

Performance

SPMO vs. ARKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco S&P 500 Momentum ETF (SPMO) 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, SPMO achieves a 28.15% return, which is significantly higher than ARKX's 16.56% return.

SPMO

• 1D: 1.26%
• 1M: 4.23%
• YTD: 28.15%
• 6M: 28.70%
• 1Y: 43.47%
• 3Y*: 41.53%
• 5Y*: 23.50%
• 10Y*: 20.86%

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)

SPMO vs. ARKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
SPMO Invesco S&P 500 Momentum ETF	28.15%	26.58%	45.82%	17.56%	-10.45%	24.44%
ARKX ARK Space Exploration & Innovation ETF	16.56%	48.46%	26.67%	24.37%	-34.27%	-8.05%

Correlation

The correlation between SPMO and ARKX is 0.61, 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	0.61
Correlation (3Y) Calculated over the trailing 3-year period	0.62
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (All Time) Calculated using the full available price history since Mar 30, 2021	0.66

The correlation between SPMO and ARKX has been stable across timeframes, ranging from 0.61 to 0.66 - a consistent structural relationship.

SPMO vs. ARKX - Sectors Allocation Comparison

Sectors	SPMO	ARKX
Technology	54.8%	27.4%
Industrials	10.9%	55.7%
Communication Services	8.7%	7.6%
Healthcare	6.2%	1.5%
Financial Services	5.7%	-
Consumer Defensive	4.0%	-
Energy	3.1%	-
Utilities	2.5%	-
Basic Materials	1.6%	0.0%
Consumer Cyclical	1.3%	7.8%
Real Estate	0.9%	-

Return for Risk

SPMO vs. ARKX — Risk / Return Rank

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

SPMO

SPMO Risk / Return Rank: 79
SPMO Sharpe Ratio Rank: 81
SPMO Sortino Ratio Rank: 78
SPMO Omega Ratio Rank: 80
SPMO Calmar Ratio Rank: 77
SPMO Martin Ratio Rank: 78

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.

SPMO vs. ARKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco S&P 500 Momentum ETF (SPMO) 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.

	SPMO	ARKX	Difference
Sharpe ratio: Return per unit of total volatility	2.24	1.59	+0.65
Sortino ratio: Return per unit of downside risk	2.98	2.15	+0.83
Omega ratio: Gain probability vs. loss probability	1.41	1.26	+0.15
Calmar ratio: Return relative to maximum drawdown	3.44	2.61	+0.83
Martin ratio: Return relative to average drawdown	13.01	6.87	+6.14

SPMO vs. ARKX - Sharpe Ratio Comparison

The current SPMO Sharpe Ratio is 2.24, which is higher than the ARKX Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of SPMO 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

SPMO vs. ARKX - Drawdown Comparison

The maximum SPMO drawdown since its inception was -30.95%, smaller than the maximum ARKX drawdown of -43.61%. Use the drawdown chart below to compare losses from any high point for SPMO and ARKX.

Drawdown Indicators

	SPMO	ARKX	Difference
Max Drawdown Largest peak-to-trough decline	-30.95%	-43.61%	+12.66%
Max Drawdown (1Y) Largest decline over 1 year	-12.70%	-20.42%	+7.72%
Max Drawdown (3Y) Largest decline over 3 years	-20.13%	-25.47%	+5.34%
Max Drawdown (5Y) Largest decline over 5 years	-22.74%	-43.61%	+20.87%
Max Drawdown (10Y) Largest decline over 10 years	-30.95%	—	—
Current Drawdown Current decline from peak	-1.68%	-10.49%	+8.81%
Average Drawdown Average peak-to-trough decline	-4.60%	-19.92%	+15.32%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.35%	7.74%	-4.39%

Volatility

SPMO vs. ARKX - Volatility Comparison

The current volatility for Invesco S&P 500 Momentum ETF (SPMO) is 10.29%, while ARK Space Exploration & Innovation ETF (ARKX) has a volatility of 12.77%. This indicates that SPMO 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

	SPMO	ARKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.29%	12.77%	-2.48%
Volatility (6M) Calculated over the trailing 6-month period	16.73%	26.51%	-9.78%
Volatility (1Y) Calculated over the trailing 1-year period	19.48%	33.50%	-14.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.65%	28.02%	-8.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.48%	27.65%	-7.17%

SPMO vs. ARKX - Expense Ratio Comparison

SPMO has a 0.13% expense ratio, which is lower than ARKX's 0.75% expense ratio.

Dividends

SPMO vs. ARKX - Dividend Comparison

SPMO's dividend yield for the trailing twelve months is around 0.67%, while ARKX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARKX ARK Space Exploration & Innovation ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SPMO Invesco S&P 500 Momentum ETF	0.67%	0.73%	0.48%	1.63%	1.66%	0.52%	1.27%	1.39%	1.05%	0.77%	1.94%	0.36%

Frequently Asked Questions

Can I hold both SPMO and ARKX in my portfolio?

SPMO and ARKX have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SPMO or ARKX?

ARKX has higher volatility (12.77%) compared to SPMO (10.29%). In terms of maximum drawdown, SPMO dropped -30.95% vs ARKX's -43.61%.

Which ETF is better, SPMO or ARKX?

On 5-year performance, SPMO leads with 23.50% vs 10.38% for ARKX. On fees, SPMO is cheaper at 0.13% per year. On volatility, SPMO has been the lower-risk option at 10.29%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SPMO or ARKX?

Over the 5-year period, SPMO has performed better with a 23.50% return vs 10.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SPMO or ARKX?

SPMO is cheaper with a 0.13% expense ratio, compared with 0.75% for ARKX.

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

SPMO has the higher dividend yield at 0.67%, compared with 0.00% for ARKX.

What is the main difference between SPMO and ARKX?

SPMO is categorized as Momentum, while ARKX is Aerospace & Defense. They also come from different issuers: Invesco and ARK. Their fees differ too: 0.13% for SPMO and 0.75% for ARKX.

Which has better risk-adjusted returns?

SPMO currently has the higher Sharpe Ratio (2.24 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.