BIV vs. IGSB
BIV (Vanguard Intermediate-Term Bond Index ETF) and IGSB (iShares Short-Term Corporate Bond ETF) are both exchange-traded funds - BIV is a Intermediate Core Bond fund tracking the Bloomberg U.S. 5–10 Year Government/Credit Float Adjusted Bond Index, while IGSB is a Corporate Bonds fund tracking the ICE BofAML 1-5 Year US Corporate Index. Both are passively managed. Over the past 10 years, BIV returned 1.83%/yr vs 2.71%/yr for IGSB. A 0.61 correlation means they provide meaningful diversification when combined. BIV charges 0.03%/yr vs 0.06%/yr for IGSB.
Performance
BIV vs. IGSB - Performance Comparison
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Returns By Period
In the year-to-date period, BIV achieves a -0.67% return, which is significantly lower than IGSB's 0.52% return. Over the past 10 years, BIV has underperformed IGSB with an annualized return of 1.83%, while IGSB has yielded a comparatively higher 2.71% annualized return.
BIV
- 1D
- -0.05%
- 1M
- -0.94%
- YTD
- -0.67%
- 6M
- -0.33%
- 1Y
- 4.70%
- 3Y*
- 4.27%
- 5Y*
- 0.08%
- 10Y*
- 1.83%
IGSB
- 1D
- 0.04%
- 1M
- -0.25%
- YTD
- 0.52%
- 6M
- 1.00%
- 1Y
- 4.70%
- 3Y*
- 5.70%
- 5Y*
- 2.36%
- 10Y*
- 2.71%
BIV vs. IGSB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BIV Vanguard Intermediate-Term Bond Index ETF | -0.67% | 8.52% | 1.57% | 6.07% | -13.21% | -2.40% | 9.67% | 10.34% | -0.19% | 3.65% |
IGSB iShares Short-Term Corporate Bond ETF | 0.52% | 6.96% | 4.97% | 6.40% | -5.63% | -0.56% | 5.37% | 7.11% | 1.25% | 1.27% |
Correlation
The correlation between BIV and IGSB is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.92 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.92 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.90 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.83 |
Correlation (All Time) Calculated using the full available price history since Apr 11, 2007 | 0.61 |
Over the past year, BIV and IGSB have become more correlated (0.92) than their long-term average of 0.61, meaning their price movements have been converging.
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Return for Risk
BIV vs. IGSB — Risk / Return Rank
BIV
IGSB
BIV vs. IGSB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Bond Index ETF (BIV) and iShares Short-Term Corporate Bond ETF (IGSB). 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.
| BIV | IGSB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.29 | ||
| Sortino ratioReturn per unit of downside risk | -2.07 | ||
| Omega ratioGain probability vs. loss probability | 1.21 | 1.50 | -0.29 |
| Calmar ratioReturn relative to maximum drawdown | 1.49 | 3.24 | -1.75 |
| Martin ratioReturn relative to average drawdown | 4.40 | 13.12 | -8.72 |
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
| BIV | IGSB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.18 | 2.47 | -1.29 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.01 | 0.81 | -0.80 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.33 | 0.78 | -0.45 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.64 | 0.70 | -0.06 |
Drawdowns
BIV vs. IGSB - Drawdown Comparison
The maximum BIV drawdown since its inception was -18.95%, which is greater than IGSB's maximum drawdown of -13.38%. Use the drawdown chart below to compare losses from any high point for BIV and IGSB.
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Drawdown Indicators
| BIV | IGSB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.95% | -13.38% | -5.57% |
Max Drawdown (1Y)Largest decline over 1 year | -3.18% | -1.46% | -1.72% |
Max Drawdown (3Y)Largest decline over 3 years | -6.07% | -1.46% | -4.61% |
Max Drawdown (5Y)Largest decline over 5 years | -18.74% | -9.46% | -9.28% |
Max Drawdown (10Y)Largest decline over 10 years | -18.95% | -13.38% | -5.57% |
Current DrawdownCurrent decline from peak | -2.46% | -0.51% | -1.95% |
Average DrawdownAverage peak-to-trough decline | -3.39% | -0.85% | -2.54% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.07% | 0.36% | +0.71% |
Volatility
BIV vs. IGSB - Volatility Comparison
Vanguard Intermediate-Term Bond Index ETF (BIV) has a higher volatility of 1.35% compared to iShares Short-Term Corporate Bond ETF (IGSB) at 0.61%. This indicates that BIV's price experiences larger fluctuations and is considered to be riskier than IGSB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BIV | IGSB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.35% | 0.61% | +0.74% |
Volatility (6M)Calculated over the trailing 6-month period | 2.93% | 1.44% | +1.49% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.00% | 1.91% | +2.09% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.40% | 2.93% | +3.47% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.51% | 3.47% | +2.04% |
BIV vs. IGSB - Expense Ratio Comparison
BIV has a 0.03% expense ratio, which is lower than IGSB's 0.06% 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
BIV vs. IGSB - Dividend Comparison
BIV's dividend yield for the trailing twelve months is around 4.24%, less than IGSB's 4.59% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BIV Vanguard Intermediate-Term Bond Index ETF | 4.24% | 4.01% | 3.79% | 3.09% | 2.41% | 3.42% | 2.95% | 2.75% | 2.88% | 2.69% | 3.01% | 3.02% |
IGSB iShares Short-Term Corporate Bond ETF | 4.59% | 4.44% | 4.02% | 3.26% | 2.07% | 1.82% | 2.36% | 3.06% | 2.46% | 1.65% | 1.45% | 1.18% |
Frequently Asked Questions
With a correlation of 0.92, BIV and IGSB 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.
BIV has higher volatility (1.35%) compared to IGSB (0.61%). In terms of maximum drawdown, BIV dropped -18.95% vs IGSB's -13.38%.
On 10-year performance, IGSB leads with 2.71% vs 1.83% for BIV. On fees, BIV is cheaper at 0.03% per year. On volatility, IGSB has been the lower-risk option at 0.61%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, IGSB has performed better with a 2.71% return vs 1.83%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
BIV is cheaper with a 0.03% expense ratio, compared with 0.06% for IGSB.
IGSB has the higher dividend yield at 4.59%, compared with 4.24% for BIV.
BIV is categorized as Intermediate Core Bond, while IGSB is Corporate Bonds. BIV tracks Bloomberg U.S. 5–10 Year Government/Credit Float Adjusted Bond Index, while IGSB tracks ICE BofAML 1-5 Year US Corporate Index. They also come from different issuers: Vanguard and iShares. Their fees differ too: 0.03% for BIV and 0.06% for IGSB.
IGSB currently has the higher Sharpe Ratio (2.47 vs 1.18), 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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