SIHY vs. CMDY
SIHY (Harbor Scientific Alpha High-Yield ETF) and CMDY (iShares Bloomberg Roll Select Commodity Strategy ETF) are both exchange-traded funds - SIHY is a High Yield Bonds fund tracking the ICE BofA US High Yield, while CMDY is a Commodities fund tracking the Bloomberg Roll Select Commodity Total Return Index. Both are passively managed. Over the past 3 years, SIHY returned 9.46%/yr vs 11.79%/yr for CMDY. At a 0.12 correlation, their price movements are largely independent. SIHY charges 0.48%/yr vs 0.28%/yr for CMDY.
Performance
SIHY vs. CMDY - Performance Comparison
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Returns By Period
In the year-to-date period, SIHY achieves a 2.67% return, which is significantly lower than CMDY's 16.78% return.
SIHY
- 1D
- 0.01%
- 1M
- 0.50%
- 6M
- 2.18%
- YTD
- 2.67%
- 1Y
- 7.35%
- 3Y*
- 9.46%
- 5Y*
- —
- 10Y*
- —
CMDY
- 1D
- -0.07%
- 1M
- -1.66%
- 6M
- 14.34%
- YTD
- 16.78%
- 1Y
- 24.63%
- 3Y*
- 11.79%
- 5Y*
- 9.43%
- 10Y*
- —
SIHY vs. CMDY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
SIHY Harbor Scientific Alpha High-Yield ETF | 2.67% | 8.13% | 8.67% | 13.31% | -7.73% | 0.18% |
CMDY iShares Bloomberg Roll Select Commodity Strategy ETF | 16.78% | 15.81% | 5.43% | -9.33% | 14.55% | -0.84% |
Correlation
The correlation between SIHY and CMDY is -0.13, 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 | -0.13 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.03 |
Correlation (All Time) Calculated using the full available price history since Sep 16, 2021 | 0.12 |
The correlation between SIHY and CMDY shifts across timeframes, from -0.13 (1 year) to 0.12 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
SIHY vs. CMDY — Risk / Return Rank
SIHY
CMDY
SIHY vs. CMDY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Harbor Scientific Alpha High-Yield ETF (SIHY) and iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY). 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.
| SIHY | CMDY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.17 | ||
| Sortino ratioReturn per unit of downside risk | +0.62 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 1.28 | +0.05 |
| Calmar ratioReturn relative to maximum drawdown | 2.25 | 1.81 | +0.45 |
| Martin ratioReturn relative to average drawdown | 9.39 | 6.24 | +3.15 |
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Drawdowns
SIHY vs. CMDY - Drawdown Comparison
The maximum SIHY drawdown since its inception was -13.30%, smaller than the maximum CMDY drawdown of -31.19%. Use the drawdown chart below to compare losses from any high point for SIHY and CMDY.
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Drawdown Indicators
| SIHY | CMDY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -13.30% | -31.19% | +17.89% |
Max Drawdown (1Y)Largest decline over 1 year | -3.17% | -14.23% | +11.06% |
Max Drawdown (3Y)Largest decline over 3 years | -5.36% | -14.23% | +8.87% |
Max Drawdown (5Y)Largest decline over 5 years | — | -26.56% | — |
Current DrawdownCurrent decline from peak | -0.02% | -10.60% | +10.58% |
Average DrawdownAverage peak-to-trough decline | -2.72% | -13.11% | +10.39% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.76% | 4.11% | -3.35% |
Volatility
SIHY vs. CMDY - Volatility Comparison
The current volatility for Harbor Scientific Alpha High-Yield ETF (SIHY) is 1.15%, while iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY) has a volatility of 4.20%. This indicates that SIHY experiences smaller price fluctuations and is considered to be less risky than CMDY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SIHY | CMDY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.15% | 4.20% | -3.05% |
Volatility (6M)Calculated over the trailing 6-month period | 3.15% | 14.35% | -11.20% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.13% | 16.45% | -12.32% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.51% | 15.80% | -8.29% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 7.51% | 14.65% | -7.14% |
SIHY vs. CMDY - Expense Ratio Comparison
SIHY has a 0.48% expense ratio, which is higher than CMDY's 0.28% expense ratio.
Dividends
SIHY vs. CMDY - Dividend Comparison
SIHY's dividend yield for the trailing twelve months is around 7.12%, less than CMDY's 11.04% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|---|---|---|---|---|
CMDY iShares Bloomberg Roll Select Commodity Strategy ETF | 11.04% | 12.89% | 4.23% | 5.10% | 3.98% | 16.09% | 0.15% | 2.21% | 1.73% |
SIHY Harbor Scientific Alpha High-Yield ETF | 7.12% | 7.61% | 7.54% | 7.06% | 6.31% | 1.30% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
SIHY and CMDY have a correlation of -0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CMDY has higher volatility (4.20%) compared to SIHY (1.15%). In terms of maximum drawdown, SIHY dropped -13.30% vs CMDY's -31.19%.
On 3-year performance, CMDY leads with 11.79% vs 9.46% for SIHY. On fees, CMDY is cheaper at 0.28% per year. On volatility, SIHY has been the lower-risk option at 1.15%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, CMDY has performed better with a 11.79% return vs 9.46%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
CMDY is cheaper with a 0.28% expense ratio, compared with 0.48% for SIHY.
CMDY has the higher dividend yield at 11.04%, compared with 7.12% for SIHY.
SIHY is categorized as High Yield Bonds, while CMDY is Commodities. SIHY tracks ICE BofA US High Yield, while CMDY tracks Bloomberg Roll Select Commodity Total Return Index. They also come from different issuers: Harbor and iShares. Their fees differ too: 0.48% for SIHY and 0.28% for CMDY.
SIHY currently has the higher Sharpe Ratio (1.73 vs 1.56), 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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