CAOS vs. XAPR

Last updated Apr 1, 2026

Compare and contrast key facts about Alpha Architect Tail Risk ETF (CAOS) and FT Cboe Vest U.S. Equity Enhance & Moderate Buffer ETF - April (XAPR).

CAOS and XAPR are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. CAOS is an actively managed fund by Alpha Architect. It was launched on Aug 14, 2013. XAPR is an actively managed fund by FT Vest. It was launched on Apr 18, 2024.

Performance

CAOS vs. XAPR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Alpha Architect Tail Risk ETF (CAOS) and FT Cboe Vest U.S. Equity Enhance & Moderate Buffer ETF - April (XAPR). The values are adjusted to include any dividend payments, if applicable.

CAOS vs. XAPR - Yearly Performance Comparison

	2026 (YTD)	2025	2024
CAOS Alpha Architect Tail Risk ETF	1.10%	2.55%	4.93%
XAPR FT Cboe Vest U.S. Equity Enhance & Moderate Buffer ETF - April	1.10%	12.57%	8.25%

Returns By Period

As of year-to-date, both investments have demonstrated similar returns, with CAOS at 1.10% and XAPR at 1.10%.

CAOS

• 1D: 0.07%
• 1M: 0.43%
• YTD: 1.10%
• 6M: 1.37%
• 1Y: 3.19%
• 3Y*: 5.46%
• 5Y*: —
• 10Y*: —

XAPR

• 1D: 0.22%
• 1M: 0.35%
• YTD: 1.10%
• 6M: 2.86%
• 1Y: 12.23%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CAOS vs. XAPR - Expense Ratio Comparison

CAOS has a 0.63% expense ratio, which is lower than XAPR's 0.85% expense ratio.

XAPR

FT Cboe Vest U.S. Equity Enhance & Moderate Buffer ETF - April

CAOS

Alpha Architect Tail Risk ETF

Return for Risk

CAOS vs. XAPR — Risk / Return Rank

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

CAOS

CAOS Risk / Return Rank: 41
CAOS Sharpe Ratio Rank: 39
CAOS Sortino Ratio Rank: 36
CAOS Omega Ratio Rank: 72
CAOS Calmar Ratio Rank: 35
CAOS Martin Ratio Rank: 23

XAPR

XAPR Risk / Return Rank: 88
XAPR Sharpe Ratio Rank: 79
XAPR Sortino Ratio Rank: 88
XAPR Omega Ratio Rank: 98
XAPR Calmar Ratio Rank: 76
XAPR Martin Ratio Rank: 97

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.

CAOS vs. XAPR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Alpha Architect Tail Risk ETF (CAOS) and FT Cboe Vest U.S. Equity Enhance & Moderate Buffer ETF - April (XAPR). 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.

	CAOS	XAPR	Difference
Sharpe ratio Return per unit of total volatility	0.69	1.51	-0.82
Sortino ratio Return per unit of downside risk	0.97	2.48	-1.51
Omega ratio Gain probability vs. loss probability	1.26	1.66	-0.40
Calmar ratio Return relative to maximum drawdown	0.83	2.01	-1.17
Martin ratio Return relative to average drawdown	1.38	18.98	-17.60
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CAOS vs. XAPR - Sharpe Ratio Comparison

The current CAOS Sharpe Ratio is 0.69, which is lower than the XAPR Sharpe Ratio of 1.51. The chart below compares the historical Sharpe Ratios of CAOS and XAPR, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CAOS	XAPR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.69	1.51	-0.82
Sharpe Ratio (All Time) Calculated using the full available price history	1.27	1.78	-0.52

Correlation

The correlation between CAOS and XAPR is -0.25. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.

Dividends

CAOS vs. XAPR - Dividend Comparison

Neither CAOS nor XAPR has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

CAOS vs. XAPR - Drawdown Comparison

The maximum CAOS drawdown since its inception was -3.60%, smaller than the maximum XAPR drawdown of -6.18%. Use the drawdown chart below to compare losses from any high point for CAOS and XAPR.

Drawdown Indicators

	CAOS	XAPR	Difference
Max Drawdown Largest peak-to-trough decline	-3.60%	-6.18%	+2.58%
Max Drawdown (1Y) Largest decline over 1 year	-3.60%	-6.18%	+2.58%
Current Drawdown Current decline from peak	-0.80%	0.00%	-0.80%
Average Drawdown Average peak-to-trough decline	-0.90%	-0.18%	-0.72%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.18%	0.65%	+1.53%

Volatility

CAOS vs. XAPR - Volatility Comparison

Alpha Architect Tail Risk ETF (CAOS) has a higher volatility of 0.74% compared to FT Cboe Vest U.S. Equity Enhance & Moderate Buffer ETF - April (XAPR) at 0.45%. This indicates that CAOS's price experiences larger fluctuations and is considered to be riskier than XAPR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CAOS	XAPR	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.74%	0.45%	+0.29%
Volatility (6M) Calculated over the trailing 6-month period	1.30%	1.19%	+0.11%
Volatility (1Y) Calculated over the trailing 1-year period	4.68%	8.15%	-3.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.37%	6.41%	-2.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.37%	6.41%	-2.04%