APRW vs. CAOS

Last updated Apr 2, 2026

Compare and contrast key facts about AllianzIM U.S. Large Cap Buffer20 Apr ETF (APRW) and Alpha Architect Tail Risk ETF (CAOS).

APRW and CAOS are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. APRW is an actively managed fund by Allianz. It was launched on May 28, 2020. CAOS is an actively managed fund by Alpha Architect. It was launched on Aug 14, 2013.

Performance

APRW vs. CAOS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AllianzIM U.S. Large Cap Buffer20 Apr ETF (APRW) and Alpha Architect Tail Risk ETF (CAOS). The values are adjusted to include any dividend payments, if applicable.

APRW vs. CAOS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
APRW AllianzIM U.S. Large Cap Buffer20 Apr ETF	1.84%	6.18%	11.25%	9.60%
CAOS Alpha Architect Tail Risk ETF	0.96%	2.55%	5.33%	7.97%

Returns By Period

In the year-to-date period, APRW achieves a 1.84% return, which is significantly higher than CAOS's 0.96% return.

APRW

• 1D: 0.35%
• 1M: 1.02%
• YTD: 1.84%
• 6M: 3.66%
• 1Y: 10.51%
• 3Y*: 9.52%
• 5Y*: 6.61%
• 10Y*: —

CAOS

• 1D: -0.13%
• 1M: 0.12%
• YTD: 0.96%
• 6M: 1.23%
• 1Y: 2.95%
• 3Y*: 5.41%
• 5Y*: —
• 10Y*: —

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

APRW vs. CAOS - Expense Ratio Comparison

APRW has a 0.74% expense ratio, which is higher than CAOS's 0.63% expense ratio.

APRW

AllianzIM U.S. Large Cap Buffer20 Apr ETF

CAOS

Alpha Architect Tail Risk ETF

Return for Risk

APRW vs. CAOS — Risk / Return Rank

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

APRW

APRW Risk / Return Rank: 82
APRW Sharpe Ratio Rank: 78
APRW Sortino Ratio Rank: 82
APRW Omega Ratio Rank: 96
APRW Calmar Ratio Rank: 65
APRW Martin Ratio Rank: 90

CAOS

CAOS Risk / Return Rank: 35
CAOS Sharpe Ratio Rank: 32
CAOS Sortino Ratio Rank: 29
CAOS Omega Ratio Rank: 61
CAOS Calmar Ratio Rank: 33
CAOS Martin Ratio Rank: 21

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.

APRW vs. CAOS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AllianzIM U.S. Large Cap Buffer20 Apr ETF (APRW) 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.

	APRW	CAOS	Difference
Sharpe ratio Return per unit of total volatility	1.52	0.63	+0.89
Sortino ratio Return per unit of downside risk	2.26	0.90	+1.36
Omega ratio Gain probability vs. loss probability	1.53	1.23	+0.29
Calmar ratio Return relative to maximum drawdown	1.89	0.85	+1.04
Martin ratio Return relative to average drawdown	13.00	1.40	+11.59
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

APRW vs. CAOS - Sharpe Ratio Comparison

The current APRW Sharpe Ratio is 1.52, which is higher than the CAOS Sharpe Ratio of 0.63. The chart below compares the historical Sharpe Ratios of APRW and CAOS, 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

	APRW	CAOS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.52	0.63	+0.89
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.99	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.05	1.26	-0.20

Correlation

The correlation between APRW and CAOS is 0.11, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

APRW vs. CAOS - Dividend Comparison

Neither APRW nor CAOS has paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020
APRW AllianzIM U.S. Large Cap Buffer20 Apr ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	3.67%
CAOS Alpha Architect Tail Risk ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

APRW vs. CAOS - Drawdown Comparison

The maximum APRW drawdown since its inception was -9.61%, which is greater than CAOS's maximum drawdown of -3.60%. Use the drawdown chart below to compare losses from any high point for APRW and CAOS.

Drawdown Indicators

	APRW	CAOS	Difference
Max Drawdown Largest peak-to-trough decline	-9.61%	-3.60%	-6.01%
Max Drawdown (1Y) Largest decline over 1 year	-5.62%	-3.60%	-2.02%
Max Drawdown (5Y) Largest decline over 5 years	-9.61%	—	—
Current Drawdown Current decline from peak	0.00%	-0.93%	+0.93%
Average Drawdown Average peak-to-trough decline	-1.15%	-0.90%	-0.25%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.82%	2.18%	-1.36%

Volatility

APRW vs. CAOS - Volatility Comparison

AllianzIM U.S. Large Cap Buffer20 Apr ETF (APRW) and Alpha Architect Tail Risk ETF (CAOS) have volatilities of 0.77% and 0.74%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	APRW	CAOS	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.77%	0.74%	+0.03%
Volatility (6M) Calculated over the trailing 6-month period	1.63%	1.31%	+0.32%
Volatility (1Y) Calculated over the trailing 1-year period	6.92%	4.68%	+2.24%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.73%	4.37%	+2.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.47%	4.37%	+2.10%