POWR vs. CAOS
POWR (iShares U.S. Power Infrastructure ETF) and CAOS (Alpha Architect Tail Risk ETF) are both exchange-traded funds - POWR is a Utilities Equities fund tracking the S&P U.S. Power Infrastructure Select Index, while CAOS is a Options Trading fund actively managed by Alpha Architect. POWR is passively managed, while CAOS is actively managed. Over the past 3 years, POWR returned 10.34%/yr vs 3.63%/yr for CAOS. At a correlation of -0.02, they often move in opposite directions. POWR charges 0.40%/yr vs 0.63%/yr for CAOS.
Performance
POWR vs. CAOS - Performance Comparison
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Returns By Period
In the year-to-date period, POWR achieves a 14.85% return, which is significantly higher than CAOS's 0.84% return.
POWR
- 1D
- -0.74%
- 1M
- -1.76%
- 6M
- 13.60%
- YTD
- 14.85%
- 1Y
- 17.40%
- 3Y*
- 10.34%
- 5Y*
- 16.74%
- 10Y*
- 7.83%
CAOS
- 1D
- 0.06%
- 1M
- 0.12%
- 6M
- 0.30%
- YTD
- 0.84%
- 1Y
- 2.02%
- 3Y*
- 3.63%
- 5Y*
- —
- 10Y*
- —
POWR vs. CAOS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
POWR iShares U.S. Power Infrastructure ETF | 14.85% | 10.81% | -1.30% | 2.77% |
CAOS Alpha Architect Tail Risk ETF | 0.84% | 2.55% | 5.33% | 7.43% |
Correlation
The correlation between POWR and CAOS is -0.23, 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 (1Y) Calculated over the trailing 1-year period | -0.23 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.11 |
Correlation (All Time) Calculated using the full available price history since Mar 6, 2023 | -0.02 |
Over the past year, the inverse relationship between POWR and CAOS has strengthened: their correlation has moved from -0.02 to -0.23, meaning they now move in opposite directions more often than their long-term average.
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Return for Risk
POWR vs. CAOS — Risk / Return Rank
POWR
CAOS
POWR vs. CAOS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares U.S. Power Infrastructure ETF (POWR) 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.
| POWR | CAOS | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.27 | ||
| Sortino ratioReturn per unit of downside risk | -0.59 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 1.27 | -0.08 |
| Calmar ratioReturn relative to maximum drawdown | 2.47 | 2.68 | -0.22 |
| Martin ratioReturn relative to average drawdown | 6.91 | 6.06 | +0.85 |
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Drawdowns
POWR vs. CAOS - Drawdown Comparison
The maximum POWR drawdown since its inception was -65.98%, which is greater than CAOS's maximum drawdown of -3.89%. Use the drawdown chart below to compare losses from any high point for POWR and CAOS.
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Drawdown Indicators
| POWR | CAOS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -65.98% | -3.89% | -62.09% |
Max Drawdown (1Y)Largest decline over 1 year | -7.09% | -0.76% | -6.33% |
Max Drawdown (3Y)Largest decline over 3 years | -23.14% | -3.60% | -19.54% |
Max Drawdown (5Y)Largest decline over 5 years | -25.09% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -63.42% | — | — |
Current DrawdownCurrent decline from peak | -4.51% | -1.04% | -3.47% |
Average DrawdownAverage peak-to-trough decline | -18.03% | -0.92% | -17.11% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.53% | 0.33% | +2.20% |
Volatility
POWR vs. CAOS - Volatility Comparison
iShares U.S. Power Infrastructure ETF (POWR) has a higher volatility of 5.11% compared to Alpha Architect Tail Risk ETF (CAOS) at 0.48%. This indicates that POWR'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.
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Volatility by Period
| POWR | CAOS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.11% | 0.48% | +4.63% |
Volatility (6M)Calculated over the trailing 6-month period | 12.95% | 1.09% | +11.86% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.84% | 1.56% | +15.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.02% | 4.20% | +18.82% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.49% | 4.20% | +21.29% |
POWR vs. CAOS - Expense Ratio Comparison
POWR has a 0.40% expense ratio, which is lower than CAOS's 0.63% expense ratio.
Dividends
POWR vs. CAOS - Dividend Comparison
POWR's dividend yield for the trailing twelve months is around 5.61%, while CAOS has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CAOS Alpha Architect Tail Risk ETF | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
POWR iShares U.S. Power Infrastructure ETF | 5.61% | 7.56% | 4.36% | 4.16% | 4.82% | 3.94% | 3.96% | 5.71% | 3.17% | 3.11% | 2.75% | 3.42% |
Frequently Asked Questions
POWR and CAOS have a correlation of -0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
POWR has higher volatility (5.11%) compared to CAOS (0.48%). In terms of maximum drawdown, POWR dropped -65.98% vs CAOS's -3.89%.
On 3-year performance, POWR leads with 10.34% vs 3.63% for CAOS. On fees, POWR is cheaper at 0.40% per year. On volatility, CAOS has been the lower-risk option at 0.48%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, POWR has performed better with a 10.34% return vs 3.63%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
POWR is cheaper with a 0.40% expense ratio, compared with 0.63% for CAOS.
POWR has the higher dividend yield at 5.61%, compared with 0.00% for CAOS.
POWR is categorized as Utilities Equities, while CAOS is Options Trading. They also come from different issuers: iShares and Alpha Architect. Their fees differ too: 0.40% for POWR and 0.63% for CAOS.
CAOS currently has the higher Sharpe Ratio (1.31 vs 1.04), 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.
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