IUSB vs. ABNFX
Compare and contrast key facts about iShares Core Universal USD Bond ETF (IUSB) and American Funds The Bond Fund of America® Class F-2 (ABNFX).
IUSB is a passively managed fund by iShares that tracks the performance of the Bloomberg U.S. Universal Index. It was launched on Jun 10, 2014. ABNFX is managed by American Funds. It was launched on Aug 4, 2008.
Performance
IUSB vs. ABNFX - Performance Comparison
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IUSB vs. ABNFX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IUSB iShares Core Universal USD Bond ETF | 0.07% | 7.38% | 2.11% | 6.23% | -13.04% | -1.33% | 7.62% | 9.13% | -0.27% | 3.82% |
ABNFX American Funds The Bond Fund of America® Class F-2 | -0.55% | 7.42% | 1.42% | 4.29% | -13.08% | -0.88% | 10.86% | 8.08% | 0.15% | 3.48% |
Returns By Period
In the year-to-date period, IUSB achieves a 0.07% return, which is significantly higher than ABNFX's -0.55% return. Over the past 10 years, IUSB has outperformed ABNFX with an annualized return of 2.08%, while ABNFX has yielded a comparatively lower 1.95% annualized return.
IUSB
- 1D
- 0.14%
- 1M
- -1.29%
- YTD
- 0.07%
- 6M
- 0.88%
- 1Y
- 4.42%
- 3Y*
- 4.12%
- 5Y*
- 0.56%
- 10Y*
- 2.08%
ABNFX
- 1D
- 0.27%
- 1M
- -1.74%
- YTD
- -0.55%
- 6M
- 0.27%
- 1Y
- 3.61%
- 3Y*
- 3.18%
- 5Y*
- -0.01%
- 10Y*
- 1.95%
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IUSB vs. ABNFX - Expense Ratio Comparison
IUSB has a 0.06% expense ratio, which is lower than ABNFX's 0.35% expense ratio.
Return for Risk
IUSB vs. ABNFX — Risk / Return Rank
IUSB
ABNFX
IUSB vs. ABNFX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core Universal USD Bond ETF (IUSB) and American Funds The Bond Fund of America® Class F-2 (ABNFX). 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 | ABNFX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.08 | 0.90 | +0.18 |
Sortino ratioReturn per unit of downside risk | 1.52 | 1.29 | +0.23 |
Omega ratioGain probability vs. loss probability | 1.19 | 1.16 | +0.04 |
Calmar ratioReturn relative to maximum drawdown | 1.89 | 1.52 | +0.37 |
Martin ratioReturn relative to average drawdown | 5.81 | 4.34 | +1.46 |
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 | ABNFX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.08 | 0.90 | +0.18 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.10 | -0.00 | +0.10 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.41 | 0.40 | +0.01 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.46 | 0.65 | -0.19 |
Correlation
The correlation between IUSB and ABNFX is 0.86, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
IUSB vs. ABNFX - Dividend Comparison
IUSB's dividend yield for the trailing twelve months is around 4.24%, more than ABNFX's 4.01% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IUSB iShares Core Universal USD Bond ETF | 4.24% | 4.17% | 4.04% | 3.46% | 2.53% | 1.74% | 2.68% | 3.04% | 2.98% | 2.56% | 2.60% | 1.95% |
ABNFX American Funds The Bond Fund of America® Class F-2 | 4.01% | 4.37% | 4.55% | 3.19% | 2.37% | 2.07% | 5.15% | 3.72% | 2.65% | 2.10% | 2.31% | 2.24% |
Drawdowns
IUSB vs. ABNFX - Drawdown Comparison
The maximum IUSB drawdown since its inception was -17.90%, roughly equal to the maximum ABNFX drawdown of -17.69%. Use the drawdown chart below to compare losses from any high point for IUSB and ABNFX.
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Drawdown Indicators
| IUSB | ABNFX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.90% | -17.69% | -0.21% |
Max Drawdown (1Y)Largest decline over 1 year | -2.49% | -2.94% | +0.45% |
Max Drawdown (5Y)Largest decline over 5 years | -17.87% | -17.65% | -0.22% |
Max Drawdown (10Y)Largest decline over 10 years | -17.90% | -17.69% | -0.21% |
Current DrawdownCurrent decline from peak | -1.67% | -2.65% | +0.98% |
Average DrawdownAverage peak-to-trough decline | -3.62% | -3.30% | -0.32% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.81% | 1.03% | -0.22% |
Volatility
IUSB vs. ABNFX - Volatility Comparison
iShares Core Universal USD Bond ETF (IUSB) has a higher volatility of 1.63% compared to American Funds The Bond Fund of America® Class F-2 (ABNFX) at 1.49%. This indicates that IUSB's price experiences larger fluctuations and is considered to be riskier than ABNFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IUSB | ABNFX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.63% | 1.49% | +0.14% |
Volatility (6M)Calculated over the trailing 6-month period | 2.41% | 2.49% | -0.08% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.13% | 4.39% | -0.26% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.77% | 5.91% | -0.14% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.03% | 4.87% | +0.16% |