HYDB vs. SIHY
HYDB (iShares High Yield Bond Factor ETF) and SIHY (Harbor Scientific Alpha High-Yield ETF) are both High Yield Bonds funds - HYDB tracks the BlackRock High Yield Defensive Bond Index while SIHY tracks the ICE BofA US High Yield. Both are passively managed. Over the past 3 years, HYDB returned 9.23%/yr vs 9.35%/yr for SIHY. Their correlation of 0.89 suggests significant overlap in exposure. HYDB charges 0.35%/yr vs 0.48%/yr for SIHY.
Performance
HYDB vs. SIHY - Performance Comparison
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Returns By Period
In the year-to-date period, HYDB achieves a 1.43% return, which is significantly lower than SIHY's 1.75% return.
HYDB
- 1D
- 0.11%
- 1M
- 0.30%
- YTD
- 1.43%
- 6M
- 1.98%
- 1Y
- 7.09%
- 3Y*
- 9.23%
- 5Y*
- 4.69%
- 10Y*
- —
SIHY
- 1D
- 0.01%
- 1M
- 0.89%
- YTD
- 1.75%
- 6M
- 2.15%
- 1Y
- 8.21%
- 3Y*
- 9.35%
- 5Y*
- —
- 10Y*
- —
HYDB vs. SIHY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
HYDB iShares High Yield Bond Factor ETF | 1.43% | 8.10% | 9.11% | 14.02% | -9.99% | 0.37% |
SIHY Harbor Scientific Alpha High-Yield ETF | 1.75% | 8.13% | 8.67% | 13.31% | -7.73% | -0.00% |
Correlation
The correlation between HYDB and SIHY is 0.73, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.73 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.83 |
Correlation (All Time) Calculated using the full available price history since Sep 17, 2021 | 0.89 |
The correlation between HYDB and SIHY shifts across timeframes, from 0.73 (1 year) to 0.89 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
HYDB vs. SIHY — Risk / Return Rank
HYDB
SIHY
HYDB vs. SIHY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares High Yield Bond Factor ETF (HYDB) and Harbor Scientific Alpha High-Yield ETF (SIHY). 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.
| HYDB | SIHY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.10 | ||
| Sortino ratioReturn per unit of downside risk | -0.24 | ||
| Omega ratioGain probability vs. loss probability | 1.36 | 1.38 | -0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.51 | 2.60 | -0.09 |
| Martin ratioReturn relative to average drawdown | 11.12 | 10.75 | +0.37 |
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
| HYDB | SIHY | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.88 | 1.98 | -0.10 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.67 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.71 | 0.64 | +0.07 |
Drawdowns
HYDB vs. SIHY - Drawdown Comparison
The maximum HYDB drawdown since its inception was -21.58%, which is greater than SIHY's maximum drawdown of -13.30%. Use the drawdown chart below to compare losses from any high point for HYDB and SIHY.
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Drawdown Indicators
| HYDB | SIHY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -21.58% | -13.30% | -8.28% |
Max Drawdown (1Y)Largest decline over 1 year | -2.83% | -3.17% | +0.34% |
Max Drawdown (3Y)Largest decline over 3 years | -5.58% | -5.36% | -0.22% |
Max Drawdown (5Y)Largest decline over 5 years | -14.28% | — | — |
Current DrawdownCurrent decline from peak | -0.11% | -0.12% | +0.01% |
Average DrawdownAverage peak-to-trough decline | -2.39% | -2.78% | +0.39% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.64% | 0.76% | -0.12% |
Volatility
HYDB vs. SIHY - Volatility Comparison
iShares High Yield Bond Factor ETF (HYDB) and Harbor Scientific Alpha High-Yield ETF (SIHY) have volatilities of 1.12% and 1.16%, 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.
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Volatility by Period
| HYDB | SIHY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.12% | 1.16% | -0.04% |
Volatility (6M)Calculated over the trailing 6-month period | 2.93% | 3.09% | -0.16% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.78% | 4.17% | -0.39% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.04% | 7.57% | -0.53% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 7.76% | 7.57% | +0.19% |
HYDB vs. SIHY - Expense Ratio Comparison
HYDB has a 0.35% expense ratio, which is lower than SIHY's 0.48% expense ratio.
Dividends
HYDB vs. SIHY - Dividend Comparison
HYDB's dividend yield for the trailing twelve months is around 7.00%, less than SIHY's 7.26% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
HYDB iShares High Yield Bond Factor ETF | 7.00% | 7.04% | 6.95% | 7.00% | 6.30% | 4.70% | 5.81% | 5.68% | 6.16% | 2.70% |
SIHY Harbor Scientific Alpha High-Yield ETF | 7.26% | 7.61% | 7.54% | 7.06% | 6.31% | 1.30% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
HYDB and SIHY have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SIHY has higher volatility (1.16%) compared to HYDB (1.12%). In terms of maximum drawdown, HYDB dropped -21.58% vs SIHY's -13.30%.
On 3-year performance, SIHY leads with 9.35% vs 9.23% for HYDB. On fees, HYDB is cheaper at 0.35% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, SIHY has performed better with a 9.35% return vs 9.23%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
HYDB is cheaper with a 0.35% expense ratio, compared with 0.48% for SIHY.
SIHY has the higher dividend yield at 7.26%, compared with 7.00% for HYDB.
HYDB tracks BlackRock High Yield Defensive Bond Index, while SIHY tracks ICE BofA US High Yield. They also come from different issuers: iShares and Harbor. Their fees differ too: 0.35% for HYDB and 0.48% for SIHY.
SIHY currently has the higher Sharpe Ratio (1.98 vs 1.88), 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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