IGLB vs. USIG
IGLB (iShares 10+ Year Investment Grade Corporate Bond ETF) and USIG (iShares Broad USD Investment Grade Corporate Bond ETF) are both Corporate Bonds funds from iShares - IGLB tracks the ICE BofAML10+ Year US Corporate Index while USIG tracks the ICE BofA US Corporate. Both are passively managed. Over the past 10 years, IGLB returned 2.28%/yr vs 2.63%/yr for USIG. Their correlation of 0.87 suggests significant overlap in exposure. IGLB charges 0.06%/yr vs 0.04%/yr for USIG.
Performance
IGLB vs. USIG - Performance Comparison
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Returns By Period
In the year-to-date period, IGLB achieves a 0.84% return, which is significantly higher than USIG's 0.56% return. Over the past 10 years, IGLB has underperformed USIG with an annualized return of 2.28%, while USIG has yielded a comparatively higher 2.63% annualized return.
IGLB
- 1D
- -0.32%
- 1M
- 1.42%
- YTD
- 0.84%
- 6M
- -0.11%
- 1Y
- 7.79%
- 3Y*
- 4.53%
- 5Y*
- -1.66%
- 10Y*
- 2.28%
USIG
- 1D
- -0.23%
- 1M
- 0.56%
- YTD
- 0.56%
- 6M
- 0.37%
- 1Y
- 6.04%
- 3Y*
- 5.46%
- 5Y*
- 0.72%
- 10Y*
- 2.63%
IGLB vs. USIG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF | 0.84% | 7.53% | -1.50% | 11.03% | -25.38% | -1.68% | 13.30% | 23.19% | -6.90% | 12.15% |
USIG iShares Broad USD Investment Grade Corporate Bond ETF | 0.56% | 7.86% | 2.56% | 8.71% | -15.30% | -1.34% | 9.44% | 13.99% | -2.21% | 5.75% |
Correlation
The correlation between IGLB and USIG is 0.98 - 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 | 0.98 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.98 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.97 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.95 |
Correlation (All Time) Calculated using the full available price history since Dec 10, 2009 | 0.87 |
The correlation between IGLB and USIG shifts across timeframes, from 0.87 (all time) to 0.98 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
IGLB vs. USIG — Risk / Return Rank
IGLB
USIG
IGLB vs. USIG - 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 Broad USD Investment Grade Corporate Bond ETF (USIG). 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.
| IGLB | USIG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.47 | ||
| Sortino ratioReturn per unit of downside risk | -0.70 | ||
| Omega ratioGain probability vs. loss probability | 1.17 | 1.26 | -0.08 |
| Calmar ratioReturn relative to maximum drawdown | 1.51 | 2.17 | -0.66 |
| Martin ratioReturn relative to average drawdown | 3.79 | 7.07 | -3.28 |
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
| IGLB | USIG | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.00 | 1.47 | -0.47 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.13 | 0.11 | -0.24 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.18 | 0.39 | -0.20 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.38 | 0.54 | -0.16 |
Drawdowns
IGLB vs. USIG - Drawdown Comparison
The maximum IGLB drawdown since its inception was -34.12%, which is greater than USIG's maximum drawdown of -22.21%. Use the drawdown chart below to compare losses from any high point for IGLB and USIG.
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Drawdown Indicators
| IGLB | USIG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.12% | -22.21% | -11.91% |
Max Drawdown (1Y)Largest decline over 1 year | -5.19% | -2.79% | -2.40% |
Max Drawdown (3Y)Largest decline over 3 years | -12.87% | -6.10% | -6.77% |
Max Drawdown (5Y)Largest decline over 5 years | -34.12% | -21.45% | -12.67% |
Max Drawdown (10Y)Largest decline over 10 years | -34.12% | -21.45% | -12.67% |
Current DrawdownCurrent decline from peak | -13.70% | -0.97% | -12.73% |
Average DrawdownAverage peak-to-trough decline | -8.11% | -3.42% | -4.69% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.06% | 0.86% | +1.20% |
Volatility
IGLB vs. USIG - Volatility Comparison
iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) has a higher volatility of 2.32% compared to iShares Broad USD Investment Grade Corporate Bond ETF (USIG) at 1.27%. This indicates that IGLB's price experiences larger fluctuations and is considered to be riskier than USIG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IGLB | USIG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.32% | 1.27% | +1.05% |
Volatility (6M)Calculated over the trailing 6-month period | 5.70% | 3.04% | +2.66% |
Volatility (1Y)Calculated over the trailing 1-year period | 7.84% | 4.13% | +3.71% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 12.39% | 6.82% | +5.57% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 12.53% | 6.82% | +5.71% |
IGLB vs. USIG - Expense Ratio Comparison
IGLB has a 0.06% expense ratio, which is higher than USIG's 0.04% 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
IGLB vs. USIG - Dividend Comparison
IGLB's dividend yield for the trailing twelve months is around 5.26%, more than USIG's 4.74% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF | 5.26% | 5.14% | 5.10% | 4.59% | 4.56% | 3.16% | 3.22% | 3.73% | 4.56% | 3.94% | 4.21% | 4.58% |
USIG iShares Broad USD Investment Grade Corporate Bond ETF | 4.74% | 4.62% | 4.51% | 3.94% | 3.14% | 2.33% | 2.82% | 3.37% | 3.44% | 3.03% | 2.87% | 3.24% |
Frequently Asked Questions
With a correlation of 0.98, IGLB and USIG 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.
IGLB has higher volatility (2.32%) compared to USIG (1.27%). In terms of maximum drawdown, IGLB dropped -34.12% vs USIG's -22.21%.
On 10-year performance, USIG leads with 2.63% vs 2.28% for IGLB. On fees, USIG is cheaper at 0.04% per year. On volatility, USIG has been the lower-risk option at 1.27%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, USIG has performed better with a 2.63% return vs 2.28%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
USIG is cheaper with a 0.04% expense ratio, compared with 0.06% for IGLB.
IGLB has the higher dividend yield at 5.26%, compared with 4.74% for USIG.
IGLB tracks ICE BofAML10+ Year US Corporate Index, while USIG tracks ICE BofA US Corporate. Their fees differ too: 0.06% for IGLB and 0.04% for USIG.
USIG currently has the higher Sharpe Ratio (1.47 vs 1.00), 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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