IGLB vs. IAGG
IGLB (iShares 10+ Year Investment Grade Corporate Bond ETF) and IAGG (iShares Core International Aggregate Bond ETF) are both exchange-traded funds - IGLB is a Corporate Bonds fund tracking the ICE BofAML10+ Year US Corporate Index, while IAGG is a Global Bonds fund tracking the Bloomberg Global Aggregate ex USD 10% Issuer Capped (Hedged) Index. Both are passively managed. Over the past 10 years, IGLB returned 2.23%/yr vs 2.19%/yr for IAGG. A 0.65 correlation means they provide meaningful diversification when combined. IGLB charges 0.06%/yr vs 0.07%/yr for IAGG.
Performance
IGLB vs. IAGG - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with IGLB having a 1.43% return and IAGG slightly higher at 1.50%. Both investments have delivered pretty close results over the past 10 years, with IGLB having a 2.23% annualized return and IAGG not far behind at 2.19%.
IGLB
- 1D
- 0.24%
- 1M
- 1.60%
- YTD
- 1.43%
- 6M
- 1.25%
- 1Y
- 6.60%
- 3Y*
- 4.34%
- 5Y*
- -2.03%
- 10Y*
- 2.23%
IAGG
- 1D
- 0.02%
- 1M
- 0.84%
- YTD
- 1.50%
- 6M
- 1.50%
- 1Y
- 2.49%
- 3Y*
- 4.72%
- 5Y*
- 1.19%
- 10Y*
- 2.19%
IGLB vs. IAGG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF | 1.43% | 7.53% | -1.50% | 11.03% | -25.38% | -1.68% | 13.30% | 23.19% | -6.90% | 12.15% |
IAGG iShares Core International Aggregate Bond ETF | 1.50% | 3.26% | 4.51% | 8.49% | -10.86% | -1.87% | 4.63% | 7.99% | 3.38% | 2.09% |
Correlation
The correlation between IGLB and IAGG is 0.74, 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 | 0.74 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.76 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.76 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.67 |
Correlation (All Time) Calculated using the full available price history since Nov 12, 2015 | 0.65 |
The correlation between IGLB and IAGG shifts across timeframes, from 0.65 (all time) to 0.76 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
IGLB vs. IAGG — Risk / Return Rank
IGLB
IAGG
IGLB vs. IAGG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) and iShares Core International Aggregate Bond ETF (IAGG). 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.
| IGLB | IAGG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.02 | ||
| Sortino ratioReturn per unit of downside risk | -0.03 | ||
| Omega ratioGain probability vs. loss probability | 1.15 | 1.16 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 1.28 | 1.08 | +0.20 |
| Martin ratioReturn relative to average drawdown | 3.15 | 3.16 | -0.01 |
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Drawdowns
IGLB vs. IAGG - Drawdown Comparison
The maximum IGLB drawdown since its inception was -34.12%, which is greater than IAGG's maximum drawdown of -13.88%. Use the drawdown chart below to compare losses from any high point for IGLB and IAGG.
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Drawdown Indicators
| IGLB | IAGG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.12% | -13.88% | -20.24% |
Max Drawdown (1Y)Largest decline over 1 year | -5.19% | -2.32% | -2.87% |
Max Drawdown (3Y)Largest decline over 3 years | -12.87% | -2.32% | -10.55% |
Max Drawdown (5Y)Largest decline over 5 years | -34.12% | -13.57% | -20.55% |
Max Drawdown (10Y)Largest decline over 10 years | -34.12% | -13.88% | -20.24% |
Current DrawdownCurrent decline from peak | -13.20% | -0.41% | -12.79% |
Average DrawdownAverage peak-to-trough decline | -8.12% | -2.84% | -5.28% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.10% | 0.79% | +1.31% |
Volatility
IGLB vs. IAGG - Volatility Comparison
iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) has a higher volatility of 1.89% compared to iShares Core International Aggregate Bond ETF (IAGG) at 0.74%. This indicates that IGLB's price experiences larger fluctuations and is considered to be riskier than IAGG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IGLB | IAGG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.89% | 0.74% | +1.15% |
Volatility (6M)Calculated over the trailing 6-month period | 5.78% | 2.46% | +3.32% |
Volatility (1Y)Calculated over the trailing 1-year period | 7.74% | 2.86% | +4.88% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 12.38% | 4.51% | +7.87% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 12.54% | 4.05% | +8.49% |
IGLB vs. IAGG - Expense Ratio Comparison
IGLB has a 0.06% expense ratio, which is lower than IAGG's 0.07% 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
IGLB vs. IAGG - Dividend Comparison
IGLB's dividend yield for the trailing twelve months is around 5.23%, more than IAGG's 3.64% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IAGG iShares Core International Aggregate Bond ETF | 3.64% | 3.08% | 4.28% | 3.55% | 2.27% | 1.16% | 1.95% | 2.82% | 3.02% | 1.74% | 1.56% | 0.13% |
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF | 5.23% | 5.14% | 5.10% | 4.59% | 4.56% | 3.16% | 3.22% | 3.73% | 4.56% | 3.94% | 4.21% | 4.58% |
Frequently Asked Questions
IGLB and IAGG have a correlation of 0.74, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IGLB has higher volatility (1.89%) compared to IAGG (0.74%). In terms of maximum drawdown, IGLB dropped -34.12% vs IAGG's -13.88%.
On 10-year performance, IGLB leads with 2.23% vs 2.19% for IAGG. On fees, IGLB is cheaper at 0.06% per year. On volatility, IAGG has been the lower-risk option at 0.74%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, IGLB has performed better with a 2.23% return vs 2.19%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IGLB is cheaper with a 0.06% expense ratio, compared with 0.07% for IAGG.
IGLB has the higher dividend yield at 5.23%, compared with 3.64% for IAGG.
IGLB is categorized as Corporate Bonds, while IAGG is Global Bonds. IGLB tracks ICE BofAML10+ Year US Corporate Index, while IAGG tracks Bloomberg Global Aggregate ex USD 10% Issuer Capped (Hedged) Index. Their fees differ too: 0.06% for IGLB and 0.07% for IAGG.
IAGG currently has the higher Sharpe Ratio (0.87 vs 0.86), 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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