IAGG vs. IUSB
IAGG (iShares Core International Aggregate Bond ETF) and IUSB (iShares Core Universal USD Bond ETF) are both exchange-traded funds - IAGG is a Global Bonds fund tracking the Bloomberg Global Aggregate ex USD 10% Issuer Capped (Hedged) Index, while IUSB is a Intermediate Core-Plus Bond fund tracking the Bloomberg U.S. Universal Index. Both are passively managed. Over the past 10 years, IAGG returned 2.17%/yr vs 1.94%/yr for IUSB. A 0.70 correlation means they provide meaningful diversification when combined. IAGG charges 0.07%/yr vs 0.06%/yr for IUSB.
Performance
IAGG vs. IUSB - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, IAGG achieves a 0.92% return, which is significantly higher than IUSB's 0.43% return. Over the past 10 years, IAGG has outperformed IUSB with an annualized return of 2.17%, while IUSB has yielded a comparatively lower 1.94% annualized return.
IAGG
- 1D
- -0.20%
- 1M
- 0.66%
- YTD
- 0.92%
- 6M
- 0.72%
- 1Y
- 2.30%
- 3Y*
- 4.59%
- 5Y*
- 1.11%
- 10Y*
- 2.17%
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%
IAGG vs. IUSB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IAGG iShares Core International Aggregate Bond ETF | 0.92% | 3.26% | 4.51% | 8.49% | -10.86% | -1.87% | 4.63% | 7.99% | 3.38% | 2.09% |
IUSB iShares Core Universal USD Bond ETF | 0.43% | 7.38% | 2.11% | 6.23% | -13.04% | -1.33% | 7.62% | 9.13% | -0.27% | 3.82% |
Correlation
The correlation between IAGG and IUSB is 0.78, 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 | 0.78 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.80 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.81 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.72 |
Correlation (All Time) Calculated using the full available price history since Nov 13, 2015 | 0.70 |
The correlation between IAGG and IUSB shifts across timeframes, from 0.70 (all time) to 0.81 (5 years), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
IAGG vs. IUSB — Risk / Return Rank
IAGG
IUSB
IAGG vs. IUSB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core International Aggregate Bond ETF (IAGG) and iShares Core Universal USD Bond ETF (IUSB). 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.
| IAGG | IUSB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.72 | ||
| Sortino ratioReturn per unit of downside risk | -1.11 | ||
| Omega ratioGain probability vs. loss probability | 1.15 | 1.27 | -0.13 |
| Calmar ratioReturn relative to maximum drawdown | 1.00 | 2.20 | -1.21 |
| Martin ratioReturn relative to average drawdown | 2.99 | 6.68 | -3.69 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| IAGG | IUSB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.81 | 1.54 | -0.72 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.25 | 0.08 | +0.17 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.54 | 0.39 | +0.15 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.62 | 0.46 | +0.16 |
Drawdowns
IAGG vs. IUSB - Drawdown Comparison
The maximum IAGG drawdown since its inception was -13.88%, smaller than the maximum IUSB drawdown of -17.90%. Use the drawdown chart below to compare losses from any high point for IAGG and IUSB.
Loading charts...
Drawdown Indicators
| IAGG | IUSB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -13.88% | -17.90% | +4.02% |
Max Drawdown (1Y)Largest decline over 1 year | -2.32% | -2.53% | +0.21% |
Max Drawdown (3Y)Largest decline over 3 years | -2.32% | -5.82% | +3.50% |
Max Drawdown (5Y)Largest decline over 5 years | -13.57% | -17.87% | +4.30% |
Max Drawdown (10Y)Largest decline over 10 years | -13.88% | -17.90% | +4.02% |
Current DrawdownCurrent decline from peak | -0.98% | -1.33% | +0.35% |
Average DrawdownAverage peak-to-trough decline | -2.85% | -3.59% | +0.74% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.77% | 0.83% | -0.06% |
Volatility
IAGG vs. IUSB - Volatility Comparison
iShares Core International Aggregate Bond ETF (IAGG) and iShares Core Universal USD Bond ETF (IUSB) have volatilities of 1.18% and 1.24%, 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.
Loading charts...
Volatility by Period
| IAGG | IUSB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.18% | 1.24% | -0.06% |
Volatility (6M)Calculated over the trailing 6-month period | 2.40% | 2.62% | -0.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.84% | 3.62% | -0.78% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.51% | 5.79% | -1.28% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.05% | 5.04% | -0.99% |
IAGG vs. IUSB - Expense Ratio Comparison
IAGG has a 0.07% expense ratio, which is higher than IUSB's 0.06% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
IAGG vs. IUSB - Dividend Comparison
IAGG's dividend yield for the trailing twelve months is around 3.66%, less than IUSB's 4.23% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IAGG iShares Core International Aggregate Bond ETF | 3.66% | 3.08% | 4.28% | 3.55% | 2.27% | 1.16% | 1.95% | 2.82% | 3.02% | 1.74% | 1.56% | 0.13% |
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
IAGG and IUSB have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IUSB has higher volatility (1.24%) compared to IAGG (1.18%). In terms of maximum drawdown, IAGG dropped -13.88% vs IUSB's -17.90%.
On 10-year performance, IAGG leads with 2.17% vs 1.94% for IUSB. 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 10-year period, IAGG has performed better with a 2.17% return vs 1.94%. 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 0.07% for IAGG.
IUSB has the higher dividend yield at 4.23%, compared with 3.66% for IAGG.
IAGG is categorized as Global Bonds, while IUSB is Intermediate Core-Plus Bond. IAGG tracks Bloomberg Global Aggregate ex USD 10% Issuer Capped (Hedged) Index, while IUSB tracks Bloomberg U.S. Universal Index. Their fees differ too: 0.07% for IAGG and 0.06% for IUSB.
IUSB currently has the higher Sharpe Ratio (1.54 vs 0.81), 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.
Find the right allocation for IAGG and IUSB
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer