ARKX vs. ARKB

Last updated Jul 18, 2026

ARKX (ARK Space Exploration & Innovation ETF) and ARKB (ARK 21Shares Bitcoin ETF) are both exchange-traded funds - ARKX is a Aerospace & Defense fund actively managed by ARK, while ARKB is a Cryptocurrency fund tracking the CME CF Bitcoin Reference Rate - New York Variant. ARKX is actively managed, while ARKB is passively managed. Over the past year, ARKX returned 10.42% vs -46.21% for ARKB. At a 0.41 correlation, their price movements are largely independent. ARKX charges 0.75%/yr vs 0.21%/yr for ARKB.

Performance

ARKX vs. ARKB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ARK Space Exploration & Innovation ETF (ARKX) and ARK 21Shares Bitcoin ETF (ARKB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ARKX achieves a 4.55% return, which is significantly higher than ARKB's -26.72% return.

ARKX

• 1D: -1.53%
• 1M: -12.20%
• 6M: -13.85%
• YTD: 4.55%
• 1Y: 10.42%
• 3Y*: 24.85%
• 5Y*: 8.57%
• 10Y*: —

ARKB

• 1D: -0.14%
• 1M: -0.09%
• 6M: -32.89%
• YTD: -26.72%
• 1Y: -46.21%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ARKX vs. ARKB - Yearly Performance Comparison

	2026 (YTD)	2025	2024
ARKX ARK Space Exploration & Innovation ETF	4.55%	48.46%	32.79%
ARKB ARK 21Shares Bitcoin ETF	-26.72%	-6.59%	86.54%

Correlation

The correlation between ARKX and ARKB is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.48
Correlation (All Time) Calculated using the full available price history since Jan 11, 2024	0.41

Return for Risk

ARKX vs. ARKB — Risk / Return Rank

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

ARKX

ARKX Risk / Return Rank: 16
ARKX Sharpe Ratio Rank: 15
ARKX Sortino Ratio Rank: 16
ARKX Omega Ratio Rank: 15
ARKX Calmar Ratio Rank: 17
ARKX Martin Ratio Rank: 17

ARKB

ARKB Risk / Return Rank: 2
ARKB Sharpe Ratio Rank: 1
ARKB Sortino Ratio Rank: 2
ARKB Omega Ratio Rank: 2
ARKB Calmar Ratio Rank: 2
ARKB Martin Ratio Rank: 2

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.

ARKX vs. ARKB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ARK Space Exploration & Innovation ETF (ARKX) and ARK 21Shares Bitcoin ETF (ARKB). 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.

	ARKX	ARKB	Difference
Sharpe ratio: Return per unit of total volatility	0.31	-1.05	+1.36
Sortino ratio: Return per unit of downside risk	0.67	-1.59	+2.26
Omega ratio: Gain probability vs. loss probability	1.08	0.82	+0.25
Calmar ratio: Return relative to maximum drawdown	0.51	-0.87	+1.38
Martin ratio: Return relative to average drawdown	1.20	-1.39	+2.59

ARKX vs. ARKB - Sharpe Ratio Comparison

The current ARKX Sharpe Ratio is 0.31, which is higher than the ARKB Sharpe Ratio of -1.05. The chart below compares the historical Sharpe Ratios of ARKX and ARKB, 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

ARKX vs. ARKB - Drawdown Comparison

The maximum ARKX drawdown since its inception was -43.61%, smaller than the maximum ARKB drawdown of -53.33%. Use the drawdown chart below to compare losses from any high point for ARKX and ARKB.

Drawdown Indicators

	ARKX	ARKB	Difference
Max Drawdown Largest peak-to-trough decline	-43.61%	-53.33%	+9.72%
Max Drawdown (1Y) Largest decline over 1 year	-20.42%	-53.33%	+32.91%
Max Drawdown (3Y) Largest decline over 3 years	-25.47%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-43.61%	—	—
Current Drawdown Current decline from peak	-19.71%	-48.97%	+29.26%
Average Drawdown Average peak-to-trough decline	-19.80%	-17.78%	-2.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.74%	33.24%	-24.50%

Volatility

ARKX vs. ARKB - Volatility Comparison

The current volatility for ARK Space Exploration & Innovation ETF (ARKX) is 8.71%, while ARK 21Shares Bitcoin ETF (ARKB) has a volatility of 10.66%. This indicates that ARKX experiences smaller price fluctuations and is considered to be less risky than ARKB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ARKX	ARKB	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.71%	10.66%	-1.95%
Volatility (6M) Calculated over the trailing 6-month period	26.09%	34.48%	-8.39%
Volatility (1Y) Calculated over the trailing 1-year period	34.13%	44.13%	-10.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.33%	49.70%	-21.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.76%	49.70%	-21.94%

ARKX vs. ARKB - Expense Ratio Comparison

ARKX has a 0.75% expense ratio, which is higher than ARKB's 0.21% expense ratio.

Dividends

ARKX vs. ARKB - Dividend Comparison

Neither ARKX nor ARKB has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both ARKX and ARKB in my portfolio?

ARKX and ARKB have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ARKX or ARKB?

ARKB has higher volatility (10.66%) compared to ARKX (8.71%). In terms of maximum drawdown, ARKX dropped -43.61% vs ARKB's -53.33%.

Which ETF is better, ARKX or ARKB?

On 1-year performance, ARKX leads with 10.42% vs -46.21% for ARKB. On fees, ARKB is cheaper at 0.21% per year. On volatility, ARKX has been the lower-risk option at 8.71%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ARKX or ARKB?

Over the 1-year period, ARKX has performed better with a 10.42% return vs -46.21%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ARKX or ARKB?

ARKB is cheaper with a 0.21% expense ratio, compared with 0.75% for ARKX.

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

ARKX and ARKB have nearly identical dividend yields, around 0.00%.

What is the main difference between ARKX and ARKB?

ARKX is categorized as Aerospace & Defense, while ARKB is Cryptocurrency. Their fees differ too: 0.75% for ARKX and 0.21% for ARKB.

Which has better risk-adjusted returns?

ARKX currently has the higher Sharpe Ratio (0.31 vs -1.05), 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.