RDYY vs. CAOS

Last updated Jun 4, 2026

RDYY (YieldMax RDDT Option Income Strategy ETF) and CAOS (Alpha Architect Tail Risk ETF) are both exchange-traded funds - RDYY is a Derivative Income fund actively managed by YieldMax, while CAOS is a Options Trading fund actively managed by Alpha Architect. Both are actively managed. At a correlation of -0.27, they often move in opposite directions. RDYY charges 0.99%/yr vs 0.63%/yr for CAOS.

Performance

RDYY vs. CAOS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in YieldMax RDDT Option Income Strategy ETF (RDYY) and Alpha Architect Tail Risk ETF (CAOS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RDYY achieves a -22.78% return, which is significantly lower than CAOS's 0.82% return.

RDYY

• 1D: 0.78%
• 1M: 2.65%
• YTD: -22.78%
• 6M: -20.14%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

CAOS

• 1D: 0.12%
• 1M: -0.09%
• YTD: 0.82%
• 6M: 0.69%
• 1Y: 1.88%
• 3Y*: 4.26%
• 5Y*: —
• 10Y*: —

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

RDYY vs. CAOS - Yearly Performance Comparison

	2026 (YTD)	2025
RDYY YieldMax RDDT Option Income Strategy ETF	-22.78%	-6.52%
CAOS Alpha Architect Tail Risk ETF	0.82%	0.23%

Correlation

The correlation between RDYY and CAOS is -0.27, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (All Time) Calculated using the full available price history since Sep 10, 2025	-0.27

Return for Risk

RDYY vs. CAOS — Risk / Return Rank

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

CAOS

CAOS Risk / Return Rank: 40
CAOS Sharpe Ratio Rank: 34
CAOS Sortino Ratio Rank: 37
CAOS Omega Ratio Rank: 39
CAOS Calmar Ratio Rank: 49
CAOS Martin Ratio Rank: 39

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.

RDYY vs. CAOS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax RDDT Option Income Strategy ETF (RDYY) and Alpha Architect Tail Risk ETF (CAOS). 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.

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

Sharpe Ratios by Period

	RDYY	CAOS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.24	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.67	1.21	-1.88

Drawdowns

RDYY vs. CAOS - Drawdown Comparison

The maximum RDYY drawdown since its inception was -51.16%, which is greater than CAOS's maximum drawdown of -3.60%. Use the drawdown chart below to compare losses from any high point for RDYY and CAOS.

Drawdown Indicators

	RDYY	CAOS	Difference
Max Drawdown Largest peak-to-trough decline	-51.16%	-3.60%	-47.56%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.76%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-3.60%	—
Current Drawdown Current decline from peak	-34.14%	-1.07%	-33.07%
Average Drawdown Average peak-to-trough decline	-28.62%	-0.90%	-27.72%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.30%	—

Volatility

Volatility by Period

	RDYY	CAOS	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.26%	—
Volatility (6M) Calculated over the trailing 6-month period	—	1.03%	—
Volatility (1Y) Calculated over the trailing 1-year period	54.12%	1.52%	+52.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	54.12%	4.26%	+49.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	54.12%	4.26%	+49.86%

RDYY vs. CAOS - Expense Ratio Comparison

RDYY has a 0.99% expense ratio, which is higher than CAOS's 0.63% expense ratio.

Dividends

RDYY vs. CAOS - Dividend Comparison

RDYY's dividend yield for the trailing twelve months is around 83.18%, while CAOS has not paid dividends to shareholders.

Position	TTM	2025
CAOS Alpha Architect Tail Risk ETF	0.00%	0.00%
RDYY YieldMax RDDT Option Income Strategy ETF	83.18%	25.20%

Frequently Asked Questions

Can I hold both RDYY and CAOS in my portfolio?

RDYY and CAOS have a correlation of -0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, RDYY or CAOS?

On fees, CAOS is cheaper at 0.63% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, RDYY or CAOS?

CAOS is cheaper with a 0.63% expense ratio, compared with 0.99% for RDYY.

Which ETF pays a higher dividend yield, RDYY or CAOS?

RDYY has the higher dividend yield at 83.18%, compared with 0.00% for CAOS.

What is the main difference between RDYY and CAOS?

RDYY is categorized as Derivative Income, while CAOS is Options Trading. They also come from different issuers: YieldMax and Alpha Architect. Their fees differ too: 0.99% for RDYY and 0.63% for CAOS.