SPXB vs. ARKK

Last updated Aug 1, 2026

SPXB (ProShares S&P 500 Bond ETF) and ARKK (ARK Innovation ETF) are both exchange-traded funds - SPXB is a Corporate Bonds fund tracking the S&P 500 MarketAxess Investment Grade Corporate Bond Index, while ARKK is a Technology Equities fund actively managed by ARK. SPXB is passively managed, while ARKK is actively managed. Their 0.19 correlation means their historical movements had little consistent relationship. SPXB charges 0.15%/yr vs 0.75%/yr for ARKK.

Performance

SPXB vs. ARKK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares S&P 500 Bond ETF (SPXB) and ARK Innovation ETF (ARKK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

SPXB

• 1D: —
• 1M: —
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

ARKK

• 1D: -2.28%
• 1M: -12.32%
• 6M: -4.85%
• YTD: -7.38%
• 1Y: 0.11%
• 3Y*: 13.25%
• 5Y*: -9.65%
• 10Y*: 14.31%
• ALL TIME*: 12.17%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
ARKK ARK Innovation ETF	$356.24M	$389.65M	$523.48M

SPXB vs. ARKK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
SPXB ProShares S&P 500 Bond ETF	0.00%	0.00%	-3.45%	8.83%	-16.66%	-1.89%	10.33%	15.34%	1.05%
ARKK ARK Innovation ETF	-7.38%	35.49%	8.40%	69.04%	-66.97%	-23.60%	152.71%	35.08%	-2.94%

Correlation

The correlation between SPXB and ARKK is 0.19, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (3Y) Balances recent behavior with more history.	0.14
Correlation (5Y) Shows whether the relationship held over a longer period.	0.22
Correlation (All Time) Calculated using the full available price history since May 3, 2018	0.19

Return for Risk

SPXB vs. ARKK — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

SPXB

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

ARKK

ARKK Risk / Return Rank: 9
ARKK Sharpe Ratio Rank: 9
ARKK Sortino Ratio Rank: 10
ARKK Omega Ratio Rank: 10
ARKK Calmar Ratio Rank: 8
ARKK Martin Ratio Rank: 8

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

SPXB vs. ARKK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares S&P 500 Bond ETF (SPXB) and ARK Innovation ETF (ARKK). 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.

	SPXB	ARKK	Difference
Sharpe ratio: Return per unit of total volatility	—	-0.15	—
Sortino ratio: Return per unit of downside risk	—	0.05	—
Omega ratio: Gain probability vs. loss probability	—	1.01	—
Calmar ratio: Return relative to maximum drawdown	—	-0.17	—
Martin ratio: Return relative to average drawdown	—	-0.35	—

Drawdowns

Drawdown Indicators

	SPXB	ARKK	Difference
Max Drawdown Largest peak-to-trough decline	—	-80.97%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-31.35%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-39.56%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-76.27%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-80.97%	—
Current Drawdown Current decline from peak	—	-53.87%	—
Average Drawdown Average peak-to-trough decline	—	-30.38%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	15.57%	—

Volatility

Volatility by Period

	SPXB	ARKK	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	10.19%	—
Volatility (6M) Calculated over the trailing 6-month period	—	27.72%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	36.83%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	46.55%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	40.48%	—

SPXB vs. ARKK - Expense Ratio Comparison

SPXB has a 0.15% expense ratio, which is lower than ARKK's 0.75% expense ratio.

Dividends

SPXB vs. ARKK - Dividend Comparison

Neither SPXB nor ARKK has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARKK ARK Innovation ETF	0.00%	0.00%	0.00%	0.70%	0.00%	0.55%	1.64%	0.38%	3.14%	1.32%	0.00%	2.27%
SPXB ProShares S&P 500 Bond ETF	0.00%	0.00%	1.22%	4.04%	3.14%	2.00%	2.64%	3.48%	2.52%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SPXB and ARKK in my portfolio?

SPXB and ARKK have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, SPXB or ARKK?

On fees, SPXB is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, SPXB or ARKK?

SPXB is cheaper with a 0.15% expense ratio, compared with 0.75% for ARKK.

Which ETF pays a higher dividend yield, SPXB or ARKK?

SPXB and ARKK have nearly identical dividend yields, around 0.00%.

What is the main difference between SPXB and ARKK?

SPXB is categorized as Corporate Bonds, while ARKK is Technology Equities. They also come from different issuers: ProShares and ARK. Their fees differ too: 0.15% for SPXB and 0.75% for ARKK.