IUSB vs. EUSB
IUSB (iShares Core Universal USD Bond ETF) and EUSB (iShares ESG Advanced Total USD Bond Market ETF) are both Intermediate Core-Plus Bond funds from iShares - IUSB tracks the Bloomberg U.S. Universal Index while EUSB tracks the Bloomberg MSCI US Universal Choice ESG Screened Index. Both are passively managed. Over the past 5 years, IUSB returned 0.44%/yr vs 0.34%/yr for EUSB. Their correlation of 0.95 suggests significant overlap in exposure. IUSB charges 0.06%/yr vs 0.12%/yr for EUSB.
Performance
IUSB vs. EUSB - Performance Comparison
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Returns By Period
In the year-to-date period, IUSB achieves a 0.43% return, which is significantly higher than EUSB's 0.13% return.
IUSB
- 1D
- -0.17%
- 1M
- 0.31%
- YTD
- 0.43%
- 6M
- 0.31%
- 1Y
- 5.54%
- 3Y*
- 4.51%
- 5Y*
- 0.44%
- 10Y*
- 1.94%
EUSB
- 1D
- -0.20%
- 1M
- 0.27%
- YTD
- 0.13%
- 6M
- 0.19%
- 1Y
- 5.15%
- 3Y*
- 4.27%
- 5Y*
- 0.34%
- 10Y*
- —
IUSB vs. EUSB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
IUSB iShares Core Universal USD Bond ETF | 0.43% | 7.38% | 2.11% | 6.23% | -13.04% | -1.33% | 2.39% |
EUSB iShares ESG Advanced Total USD Bond Market ETF | 0.13% | 7.45% | 1.83% | 5.80% | -12.81% | -1.29% | 1.68% |
Correlation
The correlation between IUSB and EUSB is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.97 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.94 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.95 |
Correlation (All Time) Calculated using the full available price history since Jun 26, 2020 | 0.95 |
The correlation between IUSB and EUSB has been stable across timeframes, ranging from 0.94 to 0.97 - a consistent structural relationship.
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Return for Risk
IUSB vs. EUSB — Risk / Return Rank
IUSB
EUSB
IUSB vs. EUSB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core Universal USD Bond ETF (IUSB) and iShares ESG Advanced Total USD Bond Market ETF (EUSB). 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.
| IUSB | EUSB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.08 | ||
| Sortino ratioReturn per unit of downside risk | +0.11 | ||
| Omega ratioGain probability vs. loss probability | 1.27 | 1.26 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.20 | 2.09 | +0.11 |
| Martin ratioReturn relative to average drawdown | 6.68 | 6.26 | +0.42 |
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
| IUSB | EUSB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.54 | 1.45 | +0.08 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.08 | 0.06 | +0.02 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.39 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.46 | 0.04 | +0.42 |
Drawdowns
IUSB vs. EUSB - Drawdown Comparison
The maximum IUSB drawdown since its inception was -17.90%, roughly equal to the maximum EUSB drawdown of -17.87%. Use the drawdown chart below to compare losses from any high point for IUSB and EUSB.
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Drawdown Indicators
| IUSB | EUSB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.90% | -17.87% | -0.03% |
Max Drawdown (1Y)Largest decline over 1 year | -2.53% | -2.48% | -0.05% |
Max Drawdown (3Y)Largest decline over 3 years | -5.82% | -5.76% | -0.06% |
Max Drawdown (5Y)Largest decline over 5 years | -17.87% | -17.45% | -0.42% |
Max Drawdown (10Y)Largest decline over 10 years | -17.90% | — | — |
Current DrawdownCurrent decline from peak | -1.33% | -1.36% | +0.03% |
Average DrawdownAverage peak-to-trough decline | -3.59% | -6.50% | +2.91% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.83% | 0.82% | +0.01% |
Volatility
IUSB vs. EUSB - Volatility Comparison
iShares Core Universal USD Bond ETF (IUSB) has a higher volatility of 1.24% compared to iShares ESG Advanced Total USD Bond Market ETF (EUSB) at 1.17%. This indicates that IUSB's price experiences larger fluctuations and is considered to be riskier than EUSB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IUSB | EUSB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.24% | 1.17% | +0.07% |
Volatility (6M)Calculated over the trailing 6-month period | 2.62% | 2.49% | +0.13% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.62% | 3.57% | +0.05% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.79% | 5.77% | +0.02% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.04% | 5.41% | -0.37% |
IUSB vs. EUSB - Expense Ratio Comparison
IUSB has a 0.06% expense ratio, which is lower than EUSB's 0.12% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
IUSB vs. EUSB - Dividend Comparison
IUSB's dividend yield for the trailing twelve months is around 4.23%, more than EUSB's 3.97% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EUSB iShares ESG Advanced Total USD Bond Market ETF | 3.97% | 3.84% | 3.67% | 3.08% | 2.21% | 1.10% | 0.57% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
IUSB iShares Core Universal USD Bond ETF | 4.23% | 4.17% | 4.04% | 3.46% | 2.53% | 1.74% | 2.68% | 3.04% | 2.98% | 2.56% | 2.60% | 1.95% |
Frequently Asked Questions
With a correlation of 0.97, IUSB and EUSB move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
IUSB has higher volatility (1.24%) compared to EUSB (1.17%). In terms of maximum drawdown, IUSB dropped -17.90% vs EUSB's -17.87%.
On 5-year performance, IUSB leads with 0.44% vs 0.34% for EUSB. On fees, IUSB is cheaper at 0.06% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, IUSB has performed better with a 0.44% return vs 0.34%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IUSB is cheaper with a 0.06% expense ratio, compared with 0.12% for EUSB.
IUSB has the higher dividend yield at 4.23%, compared with 3.97% for EUSB.
IUSB tracks Bloomberg U.S. Universal Index, while EUSB tracks Bloomberg MSCI US Universal Choice ESG Screened Index. Their fees differ too: 0.06% for IUSB and 0.12% for EUSB.
IUSB currently has the higher Sharpe Ratio (1.54 vs 1.45), 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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