CAOS vs. BOXA

Last updated Jun 4, 2026

CAOS (Alpha Architect Tail Risk ETF) and BOXA (Alpha Architect Aggregate Bond ETF) are both exchange-traded funds - CAOS is a Options Trading fund actively managed by Alpha Architect, while BOXA is a Intermediate Core Bond fund actively managed by Alpha Architect. Both are actively managed. Over the past year, CAOS returned 1.88% vs 3.52% for BOXA. At a correlation of -0.02, they often move in opposite directions. CAOS charges 0.63%/yr vs 0.23%/yr for BOXA.

Performance

CAOS vs. BOXA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Alpha Architect Tail Risk ETF (CAOS) and Alpha Architect Aggregate Bond ETF (BOXA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CAOS achieves a 0.82% return, which is significantly higher than BOXA's -0.19% return.

CAOS

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

BOXA

• 1D: -0.22%
• 1M: 0.13%
• YTD: -0.19%
• 6M: -0.46%
• 1Y: 3.52%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CAOS vs. BOXA - Yearly Performance Comparison

	2026 (YTD)	2025	2024
CAOS Alpha Architect Tail Risk ETF	0.82%	2.55%	-0.00%
BOXA Alpha Architect Aggregate Bond ETF	-0.19%	5.41%	0.02%

Correlation

The correlation between CAOS and BOXA is 0.03, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.03
Correlation (All Time) Calculated using the full available price history since Dec 19, 2024	-0.02

Return for Risk

CAOS vs. BOXA — 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

BOXA

BOXA Risk / Return Rank: 25
BOXA Sharpe Ratio Rank: 26
BOXA Sortino Ratio Rank: 25
BOXA Omega Ratio Rank: 24
BOXA Calmar Ratio Rank: 23
BOXA Martin Ratio Rank: 25

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. BOXA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Alpha Architect Tail Risk ETF (CAOS) and Alpha Architect Aggregate Bond ETF (BOXA). 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	BOXA	Difference
Sharpe ratio: Return per unit of total volatility	1.24	0.94	+0.30
Sortino ratio: Return per unit of downside risk	1.98	1.39	+0.59
Omega ratio: Gain probability vs. loss probability	1.26	1.16	+0.09
Calmar ratio: Return relative to maximum drawdown	2.49	1.10	+1.40
Martin ratio: Return relative to average drawdown	6.22	3.36	+2.87
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. BOXA - Sharpe Ratio Comparison

The current CAOS Sharpe Ratio is 1.24, which is higher than the BOXA Sharpe Ratio of 0.94. The chart below compares the historical Sharpe Ratios of CAOS and BOXA, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	CAOS	BOXA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.24	0.94	+0.30
Sharpe Ratio (All Time) Calculated using the full available price history	1.21	0.87	+0.34

Drawdowns

CAOS vs. BOXA - Drawdown Comparison

The maximum CAOS drawdown since its inception was -3.60%, which is greater than BOXA's maximum drawdown of -3.22%. Use the drawdown chart below to compare losses from any high point for CAOS and BOXA.

Drawdown Indicators

	CAOS	BOXA	Difference
Max Drawdown Largest peak-to-trough decline	-3.60%	-3.22%	-0.38%
Max Drawdown (1Y) Largest decline over 1 year	-0.76%	-3.22%	+2.46%
Max Drawdown (3Y) Largest decline over 3 years	-3.60%	—	—
Current Drawdown Current decline from peak	-1.07%	-2.04%	+0.97%
Average Drawdown Average peak-to-trough decline	-0.90%	-0.75%	-0.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.30%	1.05%	-0.75%

Volatility

CAOS vs. BOXA - Volatility Comparison

The current volatility for Alpha Architect Tail Risk ETF (CAOS) is 0.26%, while Alpha Architect Aggregate Bond ETF (BOXA) has a volatility of 1.36%. This indicates that CAOS experiences smaller price fluctuations and is considered to be less risky than BOXA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CAOS	BOXA	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.26%	1.36%	-1.10%
Volatility (6M) Calculated over the trailing 6-month period	1.03%	2.62%	-1.59%
Volatility (1Y) Calculated over the trailing 1-year period	1.52%	3.75%	-2.23%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.26%	4.15%	+0.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.26%	4.15%	+0.11%

CAOS vs. BOXA - Expense Ratio Comparison

CAOS has a 0.63% expense ratio, which is higher than BOXA's 0.23% expense ratio.

Dividends

CAOS vs. BOXA - Dividend Comparison

CAOS has not paid dividends to shareholders, while BOXA's dividend yield for the trailing twelve months is around 0.13%.

Position	TTM	2025
BOXA Alpha Architect Aggregate Bond ETF	0.13%	0.13%
CAOS Alpha Architect Tail Risk ETF	0.00%	0.00%

Frequently Asked Questions

Can I hold both CAOS and BOXA in my portfolio?

CAOS and BOXA have a correlation of 0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CAOS or BOXA?

BOXA has higher volatility (1.36%) compared to CAOS (0.26%). In terms of maximum drawdown, CAOS dropped -3.60% vs BOXA's -3.22%.

Which ETF is better, CAOS or BOXA?

On 1-year performance, BOXA leads with 3.52% vs 1.88% for CAOS. On fees, BOXA is cheaper at 0.23% per year. On volatility, CAOS has been the lower-risk option at 0.26%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CAOS or BOXA?

Over the 1-year period, BOXA has performed better with a 3.52% return vs 1.88%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CAOS or BOXA?

BOXA is cheaper with a 0.23% expense ratio, compared with 0.63% for CAOS.

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

BOXA has the higher dividend yield at 0.13%, compared with 0.00% for CAOS.

What is the main difference between CAOS and BOXA?

CAOS is categorized as Options Trading, while BOXA is Intermediate Core Bond. Their fees differ too: 0.63% for CAOS and 0.23% for BOXA.

Which has better risk-adjusted returns?

CAOS currently has the higher Sharpe Ratio (1.24 vs 0.94), 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.