SEPT vs. CAOS

Last updated Aug 2, 2026

SEPT (AllianzIM U.S. Equity Buffer10 Sep ETF) and CAOS (Alpha Architect Tail Risk ETF) are both exchange-traded funds - SEPT is a Defined Outcome fund actively managed by Allianz, while CAOS is a Options Trading fund actively managed by Alpha Architect. Both are actively managed. Over the past year, SEPT returned 16.81% vs 1.73% for CAOS. Their -0.09 correlation means they have often moved in opposite directions in the past. SEPT charges 0.74%/yr vs 0.63%/yr for CAOS.

Performance

SEPT vs. CAOS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AllianzIM U.S. Equity Buffer10 Sep ETF (SEPT) 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, SEPT achieves a 7.81% return, which is significantly higher than CAOS's 0.76% return.

SEPT

• 1D: 0.41%
• 1M: 1.00%
• 6M: 6.79%
• YTD: 7.81%
• 1Y: 16.81%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 15.14%

CAOS

• 1D: -0.06%
• 1M: -0.01%
• 6M: 0.16%
• YTD: 0.76%
• 1Y: 1.73%
• 3Y*: 3.48%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 4.70%

*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)
CAOS Alpha Architect Tail Risk ETF	$6.81M	$5.39M	$5.09M
SEPT AllianzIM U.S. Equity Buffer10 Sep ETF	$23.24K	$34.03K	$1.41M

SEPT vs. CAOS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
SEPT AllianzIM U.S. Equity Buffer10 Sep ETF	7.81%	14.95%	16.43%	4.51%
CAOS Alpha Architect Tail Risk ETF	0.76%	2.55%	5.33%	1.77%

Correlation

The correlation between SEPT and CAOS is -0.36, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	-0.36
Correlation (All Time) Calculated using the full available price history since Sep 1, 2023	-0.09

Over the past year, the inverse relationship between SEPT and CAOS has strengthened: their correlation has moved from -0.09 to -0.36, meaning they now move in opposite directions more often than their long-term average.

Return for Risk

SEPT vs. CAOS — Risk / Return Rank

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

SEPT

SEPT Risk / Return Rank: 86
SEPT Sharpe Ratio Rank: 86
SEPT Sortino Ratio Rank: 87
SEPT Omega Ratio Rank: 88
SEPT Calmar Ratio Rank: 79
SEPT Martin Ratio Rank: 90

CAOS

CAOS Risk / Return Rank: 56
CAOS Sharpe Ratio Rank: 49
CAOS Sortino Ratio Rank: 55
CAOS Omega Ratio Rank: 54
CAOS Calmar Ratio Rank: 72
CAOS Martin Ratio Rank: 48

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.

SEPT vs. CAOS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AllianzIM U.S. Equity Buffer10 Sep ETF (SEPT) 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.

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.

	SEPT	CAOS	Difference
Sharpe ratio: Return per unit of total volatility	2.07	1.19	+0.88
Sortino ratio: Return per unit of downside risk	2.98	1.89	+1.09
Omega ratio: Gain probability vs. loss probability	1.40	1.24	+0.17
Calmar ratio: Return relative to maximum drawdown	2.88	2.47	+0.41
Martin ratio: Return relative to average drawdown	14.52	5.45	+9.07

SEPT vs. CAOS - Sharpe Ratio Comparison

The current SEPT Sharpe Ratio is 2.07, which is higher than the CAOS Sharpe Ratio of 1.19. The chart below compares the historical Sharpe Ratios of SEPT and CAOS, 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

SEPT vs. CAOS - Drawdown Comparison

The maximum SEPT drawdown since its inception was -12.83%, which is greater than CAOS's maximum drawdown of -3.89%. Use the drawdown chart below to compare losses from any high point for SEPT and CAOS.

Drawdown Indicators

	SEPT	CAOS	Difference
Max Drawdown Largest peak-to-trough decline	-12.83%	-3.89%	-8.94%
Max Drawdown (1Y) Largest decline over 1 year	-5.39%	-0.76%	-4.63%
Max Drawdown (3Y) Largest decline over 3 years	—	-3.60%	—
Current Drawdown Current decline from peak	0.00%	-1.13%	+1.13%
Average Drawdown Average peak-to-trough decline	-1.08%	-0.92%	-0.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.07%	0.34%	+0.73%

Volatility

SEPT vs. CAOS - Volatility Comparison

AllianzIM U.S. Equity Buffer10 Sep ETF (SEPT) has a higher volatility of 1.72% compared to Alpha Architect Tail Risk ETF (CAOS) at 0.51%. This indicates that SEPT's price experiences larger fluctuations and is considered to be riskier than CAOS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SEPT	CAOS	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.72%	0.51%	+1.21%
Volatility (6M) Calculated over the trailing 6-month period	5.68%	1.07%	+4.61%
Volatility (1Y) Calculated over the trailing 1-year period	7.51%	1.57%	+5.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.70%	4.18%	+5.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.70%	4.18%	+5.52%

SEPT vs. CAOS - Expense Ratio Comparison

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

Dividends

SEPT vs. CAOS - Dividend Comparison

Neither SEPT nor CAOS has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both SEPT and CAOS in my portfolio?

SEPT and CAOS have a correlation of -0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SEPT or CAOS?

SEPT has higher volatility (1.72%) compared to CAOS (0.51%). In terms of maximum drawdown, SEPT dropped -12.83% vs CAOS's -3.89%.

Which ETF is better, SEPT or CAOS?

On 1-year performance, SEPT leads with 16.81% vs 1.73% for CAOS. On fees, CAOS is cheaper at 0.63% per year. On volatility, CAOS has been the lower-risk option at 0.51%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SEPT or CAOS?

Over the 1-year period, SEPT has performed better with a 16.81% return vs 1.73%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SEPT or CAOS?

CAOS is cheaper with a 0.63% expense ratio, compared with 0.74% for SEPT.

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

SEPT and CAOS have nearly identical dividend yields, around 0.00%.

What is the main difference between SEPT and CAOS?

SEPT is categorized as Defined Outcome, while CAOS is Options Trading. They also come from different issuers: Allianz and Alpha Architect. Their fees differ too: 0.74% for SEPT and 0.63% for CAOS.

Which has better risk-adjusted returns?

SEPT currently has the higher Sharpe Ratio (2.07 vs 1.19), 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.