OARK vs. AIYY

Last updated Aug 4, 2026

OARK (YieldMax Innovation Option Income Strategy ETF) and AIYY (YieldMax AI Option Income Strategy ETF) are both exchange-traded funds - OARK is a Options Trading fund actively managed by YieldMax, while AIYY is a Derivative Income fund actively managed by YieldMax. Both are actively managed. Over the past year, OARK returned 7.78% vs -56.94% for AIYY. Their 0.63 correlation means they have sometimes moved together and sometimes differently. Both charge a 0.99% expense ratio.

Performance

OARK vs. AIYY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in YieldMax Innovation Option Income Strategy ETF (OARK) and YieldMax AI Option Income Strategy ETF (AIYY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OARK achieves a 0.12% return, which is significantly higher than AIYY's -32.34% return.

OARK

• 1D: 2.06%
• 1M: -7.36%
• 6M: 3.60%
• YTD: 0.12%
• 1Y: 7.78%
• 3Y*: 10.11%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 9.80%

AIYY

• 1D: 3.65%
• 1M: 4.61%
• 6M: -19.60%
• YTD: -32.34%
• 1Y: -56.94%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: -41.50%

*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)
AIYY YieldMax AI Option Income Strategy ETF	$529.86K	$561.17K	$809.81K
OARK YieldMax Innovation Option Income Strategy ETF	$242.86K	$309.93K	$352.49K

OARK vs. AIYY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
OARK YieldMax Innovation Option Income Strategy ETF	0.12%	20.37%	7.32%	13.73%
AIYY YieldMax AI Option Income Strategy ETF	-32.34%	-58.98%	-14.74%	0.41%

Correlation

The correlation between OARK and AIYY is 0.57, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.57
Correlation (All Time) Calculated using the full available price history since Nov 28, 2023	0.63

The correlation between OARK and AIYY has been stable across timeframes, ranging from 0.57 to 0.63 - a consistent structural relationship.

Return for Risk

OARK vs. AIYY — Risk / Return Rank

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

OARK

OARK Risk / Return Rank: 17
OARK Sharpe Ratio Rank: 17
OARK Sortino Ratio Rank: 18
OARK Omega Ratio Rank: 17
OARK Calmar Ratio Rank: 17
OARK Martin Ratio Rank: 16

AIYY

AIYY Risk / Return Rank: 2
AIYY Sharpe Ratio Rank: 1
AIYY Sortino Ratio Rank: 2
AIYY Omega Ratio Rank: 1
AIYY Calmar Ratio Rank: 1
AIYY Martin Ratio Rank: 3

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.

OARK vs. AIYY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax Innovation Option Income Strategy ETF (OARK) and YieldMax AI Option Income Strategy ETF (AIYY). 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.

	OARK	AIYY	Difference
Sharpe ratio: Return per unit of total volatility	0.27	-1.06	+1.33
Sortino ratio: Return per unit of downside risk	0.57	-1.57	+2.13
Omega ratio: Gain probability vs. loss probability	1.07	0.78	+0.28
Calmar ratio: Return relative to maximum drawdown	0.34	-0.90	+1.24
Martin ratio: Return relative to average drawdown	0.75	-1.24	+2.00

OARK vs. AIYY - Sharpe Ratio Comparison

The current OARK Sharpe Ratio is 0.27, which is higher than the AIYY Sharpe Ratio of -1.06. The chart below compares the historical Sharpe Ratios of OARK and AIYY, 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

OARK vs. AIYY - Drawdown Comparison

The maximum OARK drawdown since its inception was -35.48%, smaller than the maximum AIYY drawdown of -80.28%. Use the drawdown chart below to compare losses from any high point for OARK and AIYY.

Drawdown Indicators

	OARK	AIYY	Difference
Max Drawdown Largest peak-to-trough decline	-35.48%	-80.28%	+44.80%
Max Drawdown (1Y) Largest decline over 1 year	-23.26%	-63.12%	+39.86%
Max Drawdown (3Y) Largest decline over 3 years	-35.48%	—	—
Current Drawdown Current decline from peak	-12.01%	-77.90%	+65.89%
Average Drawdown Average peak-to-trough decline	-10.47%	-43.23%	+32.76%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.39%	45.77%	-35.38%

Volatility

OARK vs. AIYY - Volatility Comparison

The current volatility for YieldMax Innovation Option Income Strategy ETF (OARK) is 8.50%, while YieldMax AI Option Income Strategy ETF (AIYY) has a volatility of 9.93%. This indicates that OARK experiences smaller price fluctuations and is considered to be less risky than AIYY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OARK	AIYY	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.50%	9.93%	-1.43%
Volatility (6M) Calculated over the trailing 6-month period	21.72%	38.62%	-16.90%
Volatility (1Y) Calculated over the trailing 1-year period	28.78%	53.91%	-25.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.83%	49.89%	-19.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.83%	49.89%	-19.06%

OARK vs. AIYY - Expense Ratio Comparison

Both OARK and AIYY have an expense ratio of 0.99%.

Dividends

OARK vs. AIYY - Dividend Comparison

OARK's dividend yield for the trailing twelve months is around 68.24%, less than AIYY's 134.39% yield.

Position	TTM	2025	2024	2023
AIYY YieldMax AI Option Income Strategy ETF	134.39%	168.33%	98.26%	0.00%
OARK YieldMax Innovation Option Income Strategy ETF	68.24%	61.86%	47.86%	45.03%

Frequently Asked Questions

Can I hold both OARK and AIYY in my portfolio?

OARK and AIYY have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OARK or AIYY?

AIYY has higher volatility (9.93%) compared to OARK (8.50%). In terms of maximum drawdown, OARK dropped -35.48% vs AIYY's -80.28%.

Which ETF is better, OARK or AIYY?

On 1-year performance, OARK leads with 7.78% vs -56.94% for AIYY. Both ETFs have the same 0.99% expense ratio. On volatility, OARK has been the lower-risk option at 8.50%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, OARK or AIYY?

Over the 1-year period, OARK has performed better with a 7.78% return vs -56.94%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OARK or AIYY?

OARK and AIYY have the same expense ratio: 0.99% per year.

Which ETF pays a higher dividend yield, OARK or AIYY?

AIYY has the higher dividend yield at 134.39%, compared with 68.24% for OARK.

What is the main difference between OARK and AIYY?

OARK is categorized as Options Trading, while AIYY is Derivative Income.

Which has better risk-adjusted returns?

OARK currently has the higher Sharpe Ratio (0.27 vs -1.06), 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.