POWR vs. RAVI
POWR (iShares U.S. Power Infrastructure ETF) and RAVI (FlexShares Ultra-Short Income ETF) are both exchange-traded funds - POWR is a Utilities Equities fund actively managed by iShares, while RAVI is a Ultrashort Bond fund actively managed by FlexShares. Both are actively managed. Over the past 10 years, POWR returned 8.66%/yr vs 2.67%/yr for RAVI. At a correlation of -0.01, they often move in opposite directions. POWR charges 0.40%/yr vs 0.25%/yr for RAVI.
Performance
POWR vs. RAVI - Performance Comparison
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Returns By Period
In the year-to-date period, POWR achieves a 18.53% return, which is significantly higher than RAVI's 1.53% return. Over the past 10 years, POWR has outperformed RAVI with an annualized return of 8.66%, while RAVI has yielded a comparatively lower 2.67% annualized return.
POWR
- 1D
- -0.11%
- 1M
- -0.93%
- YTD
- 18.53%
- 6M
- 15.28%
- 1Y
- 28.87%
- 3Y*
- 12.09%
- 5Y*
- 15.16%
- 10Y*
- 8.66%
RAVI
- 1D
- 0.02%
- 1M
- 0.39%
- YTD
- 1.53%
- 6M
- 1.92%
- 1Y
- 4.50%
- 3Y*
- 5.21%
- 5Y*
- 3.50%
- 10Y*
- 2.67%
POWR vs. RAVI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
POWR iShares U.S. Power Infrastructure ETF | 18.53% | 10.81% | -1.30% | 3.66% | 42.54% | 42.03% | -28.30% | 8.44% | -11.74% | 9.69% |
RAVI FlexShares Ultra-Short Income ETF | 1.53% | 4.98% | 5.67% | 5.55% | 0.15% | -0.04% | 2.06% | 3.49% | 1.65% | 1.22% |
Correlation
The correlation between POWR and RAVI is -0.10, 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 | -0.10 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.01 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.01 |
Correlation (10Y) Calculated over the trailing 10-year period | -0.01 |
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016 | -0.01 |
The correlation between POWR and RAVI shifts across timeframes, from -0.10 (1 year) to 0.01 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
POWR vs. RAVI — Risk / Return Rank
POWR
RAVI
POWR vs. RAVI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares U.S. Power Infrastructure ETF (POWR) and FlexShares Ultra-Short Income ETF (RAVI). 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.
| POWR | RAVI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -9.28 | ||
| Sortino ratioReturn per unit of downside risk | -21.26 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 5.39 | -4.09 |
| Calmar ratioReturn relative to maximum drawdown | 4.85 | 38.66 | -33.82 |
| Martin ratioReturn relative to average drawdown | 12.19 | 225.58 | -213.39 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| POWR | RAVI | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.74 | 11.02 | -9.28 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.66 | 2.49 | -1.83 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.34 | 2.09 | -1.75 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.19 | 2.03 | -1.84 |
Drawdowns
POWR vs. RAVI - Drawdown Comparison
The maximum POWR drawdown since its inception was -65.98%, which is greater than RAVI's maximum drawdown of -3.72%. Use the drawdown chart below to compare losses from any high point for POWR and RAVI.
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Drawdown Indicators
| POWR | RAVI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -65.98% | -3.72% | -62.26% |
Max Drawdown (1Y)Largest decline over 1 year | -5.98% | -0.12% | -5.86% |
Max Drawdown (3Y)Largest decline over 3 years | -23.14% | -0.36% | -22.78% |
Max Drawdown (5Y)Largest decline over 5 years | -25.09% | -3.28% | -21.81% |
Max Drawdown (10Y)Largest decline over 10 years | -63.42% | -3.72% | -59.70% |
Current DrawdownCurrent decline from peak | -1.45% | 0.00% | -1.45% |
Average DrawdownAverage peak-to-trough decline | -18.15% | -0.17% | -17.98% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.38% | 0.02% | +2.36% |
Volatility
POWR vs. RAVI - Volatility Comparison
iShares U.S. Power Infrastructure ETF (POWR) has a higher volatility of 5.80% compared to FlexShares Ultra-Short Income ETF (RAVI) at 0.15%. This indicates that POWR's price experiences larger fluctuations and is considered to be riskier than RAVI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| POWR | RAVI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.80% | 0.15% | +5.65% |
Volatility (6M)Calculated over the trailing 6-month period | 12.35% | 0.30% | +12.05% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.65% | 0.41% | +16.24% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.08% | 1.41% | +21.67% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.62% | 1.28% | +24.34% |
POWR vs. RAVI - Expense Ratio Comparison
POWR has a 0.40% expense ratio, which is higher than RAVI's 0.25% expense ratio.
Dividends
POWR vs. RAVI - Dividend Comparison
POWR's dividend yield for the trailing twelve months is around 6.67%, more than RAVI's 4.38% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
POWR iShares U.S. Power Infrastructure ETF | 6.67% | 7.56% | 4.36% | 4.16% | 4.82% | 3.94% | 3.96% | 5.71% | 3.17% | 3.11% | 2.75% | 3.42% |
RAVI FlexShares Ultra-Short Income ETF | 4.38% | 4.59% | 5.34% | 4.55% | 1.70% | 0.90% | 1.29% | 2.53% | 2.22% | 1.28% | 0.90% | 0.00% |
Frequently Asked Questions
POWR and RAVI have a correlation of -0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
POWR has higher volatility (5.80%) compared to RAVI (0.15%). In terms of maximum drawdown, POWR dropped -65.98% vs RAVI's -3.72%.
On 10-year performance, POWR leads with 8.66% vs 2.67% for RAVI. On fees, RAVI is cheaper at 0.25% per year. On volatility, RAVI has been the lower-risk option at 0.15%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, POWR has performed better with a 8.66% return vs 2.67%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
RAVI is cheaper with a 0.25% expense ratio, compared with 0.40% for POWR.
POWR has the higher dividend yield at 6.67%, compared with 4.38% for RAVI.
POWR is categorized as Utilities Equities, while RAVI is Ultrashort Bond. They also come from different issuers: iShares and FlexShares. Their fees differ too: 0.40% for POWR and 0.25% for RAVI.
RAVI currently has the higher Sharpe Ratio (11.02 vs 1.74), 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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