ROKT vs. ARKX

Last updated Jun 23, 2026

ROKT (SPDR S&P Kensho Final Frontiers ETF) and ARKX (ARK Space Exploration & Innovation ETF) are both exchange-traded funds - ROKT is a Industrials Equities fund tracking the S&P Kensho Final Frontiers Index, while ARKX is a Aerospace & Defense fund actively managed by ARK. ROKT is passively managed, while ARKX is actively managed. Over the past 5 years, ROKT returned 22.83%/yr vs 9.88%/yr for ARKX. Their correlation of 0.85 suggests significant overlap in exposure. ROKT charges 0.45%/yr vs 0.75%/yr for ARKX.

Performance

ROKT vs. ARKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR S&P Kensho Final Frontiers ETF (ROKT) 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, ROKT achieves a 35.59% return, which is significantly higher than ARKX's 15.11% return.

ROKT

• 1D: -1.94%
• 1M: -8.05%
• YTD: 35.59%
• 6M: 31.63%
• 1Y: 88.44%
• 3Y*: 40.42%
• 5Y*: 22.83%
• 10Y*: —

ARKX

• 1D: -3.47%
• 1M: -5.82%
• YTD: 15.11%
• 6M: 10.54%
• 1Y: 51.71%
• 3Y*: 32.80%
• 5Y*: 9.88%
• 10Y*: —

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

ROKT vs. ARKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ROKT SPDR S&P Kensho Final Frontiers ETF	35.59%	50.56%	27.89%	14.41%	-0.81%	0.25%
ARKX ARK Space Exploration & Innovation ETF	15.11%	48.46%	26.67%	24.37%	-34.27%	-8.05%

Correlation

The correlation between ROKT and ARKX is 0.90, 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	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (All Time) Calculated using the full available price history since Mar 30, 2021	0.85

The correlation between ROKT and ARKX has been stable across timeframes, ranging from 0.85 to 0.90 - a consistent structural relationship.

ROKT vs. ARKX - Sectors Allocation Comparison

Sectors	ROKT	ARKX
Industrials	68.4%	56.2%
Technology	20.1%	27.0%
Communication Services	5.8%	7.6%
Energy	5.7%	-
Basic Materials	-	0.0%
Consumer Cyclical	-	7.5%
Consumer Defensive	-	-
Financial Services	-	-
Healthcare	-	1.7%
Real Estate	-	-
Utilities	-	-

Return for Risk

ROKT vs. ARKX — Risk / Return Rank

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

ROKT

ROKT Risk / Return Rank: 86
ROKT Sharpe Ratio Rank: 89
ROKT Sortino Ratio Rank: 82
ROKT Omega Ratio Rank: 77
ROKT Calmar Ratio Rank: 92
ROKT Martin Ratio Rank: 92

ARKX

ARKX Risk / Return Rank: 44
ARKX Sharpe Ratio Rank: 45
ARKX Sortino Ratio Rank: 42
ARKX Omega Ratio Rank: 39
ARKX Calmar Ratio Rank: 53
ARKX Martin Ratio Rank: 42

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.

ROKT vs. ARKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR S&P Kensho Final Frontiers ETF (ROKT) 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.

	ROKT	ARKX	Difference
Sharpe ratio: Return per unit of total volatility	2.85	1.54	+1.32
Sortino ratio: Return per unit of downside risk	3.47	2.10	+1.37
Omega ratio: Gain probability vs. loss probability	1.44	1.25	+0.19
Calmar ratio: Return relative to maximum drawdown	5.68	2.55	+3.14
Martin ratio: Return relative to average drawdown	21.13	6.62	+14.51

ROKT vs. ARKX - Sharpe Ratio Comparison

The current ROKT Sharpe Ratio is 2.85, which is higher than the ARKX Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of ROKT 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

ROKT vs. ARKX - Drawdown Comparison

The maximum ROKT drawdown since its inception was -43.16%, roughly equal to the maximum ARKX drawdown of -43.61%. Use the drawdown chart below to compare losses from any high point for ROKT and ARKX.

Drawdown Indicators

	ROKT	ARKX	Difference
Max Drawdown Largest peak-to-trough decline	-43.16%	-43.61%	+0.45%
Max Drawdown (1Y) Largest decline over 1 year	-15.64%	-20.42%	+4.78%
Max Drawdown (3Y) Largest decline over 3 years	-23.46%	-25.47%	+2.01%
Max Drawdown (5Y) Largest decline over 5 years	-23.46%	-43.61%	+20.15%
Current Drawdown Current decline from peak	-15.64%	-11.61%	-4.03%
Average Drawdown Average peak-to-trough decline	-6.79%	-19.87%	+13.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.20%	7.84%	-3.64%

Volatility

ROKT vs. ARKX - Volatility Comparison

SPDR S&P Kensho Final Frontiers ETF (ROKT) has a higher volatility of 15.53% compared to ARK Space Exploration & Innovation ETF (ARKX) at 13.04%. This indicates that ROKT'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

	ROKT	ARKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.53%	13.04%	+2.49%
Volatility (6M) Calculated over the trailing 6-month period	26.89%	26.66%	+0.23%
Volatility (1Y) Calculated over the trailing 1-year period	31.22%	33.90%	-2.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.36%	28.14%	-4.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.41%	27.71%	-2.30%

ROKT vs. ARKX - Expense Ratio Comparison

ROKT has a 0.45% expense ratio, which is lower than ARKX's 0.75% expense ratio.

Dividends

ROKT vs. ARKX - Dividend Comparison

ROKT's dividend yield for the trailing twelve months is around 0.33%, while ARKX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
ARKX ARK Space Exploration & Innovation ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
ROKT SPDR S&P Kensho Final Frontiers ETF	0.33%	0.41%	0.57%	0.62%	0.54%	1.79%	0.48%	0.74%	0.16%

Frequently Asked Questions

Can I hold both ROKT and ARKX in my portfolio?

ROKT and ARKX have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ROKT or ARKX?

ROKT has higher volatility (15.53%) compared to ARKX (13.04%). In terms of maximum drawdown, ROKT dropped -43.16% vs ARKX's -43.61%.

Which ETF is better, ROKT or ARKX?

On 5-year performance, ROKT leads with 22.83% vs 9.88% for ARKX. On fees, ROKT is cheaper at 0.45% per year. On volatility, ARKX has been the lower-risk option at 13.04%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ROKT or ARKX?

Over the 5-year period, ROKT has performed better with a 22.83% return vs 9.88%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ROKT or ARKX?

ROKT is cheaper with a 0.45% expense ratio, compared with 0.75% for ARKX.

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

ROKT has the higher dividend yield at 0.33%, compared with 0.00% for ARKX.

What is the main difference between ROKT and ARKX?

ROKT is categorized as Industrials Equities, while ARKX is Aerospace & Defense. They also come from different issuers: State Street and ARK. Their fees differ too: 0.45% for ROKT and 0.75% for ARKX.

Which has better risk-adjusted returns?

ROKT currently has the higher Sharpe Ratio (2.85 vs 1.54), 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.