VFIDX vs. IGSB
VFIDX (Vanguard Intermediate-Term Investment-Grade Fund Admiral Shares) and IGSB (iShares 1-5 Year Investment Grade Corporate Bond ETF) are both funds - VFIDX is a Total Bond Market fund managed by Vanguard, while IGSB is a Corporate Bonds fund tracking the ICE BofA 1-5 Year US Corporate Index. Over the past 10 years, VFIDX returned 2.69%/yr vs 2.71%/yr for IGSB. A 0.59 correlation means they provide meaningful diversification when combined. VFIDX charges 0.10%/yr vs 0.04%/yr for IGSB.
Performance
VFIDX vs. IGSB - Performance Comparison
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Returns By Period
In the year-to-date period, VFIDX achieves a -0.15% return, which is significantly lower than IGSB's 0.75% return. Both investments have delivered pretty close results over the past 10 years, with VFIDX having a 2.69% annualized return and IGSB not far ahead at 2.71%.
VFIDX
- 1D
- -0.34%
- 1M
- 0.43%
- YTD
- -0.15%
- 6M
- 0.38%
- 1Y
- 5.18%
- 3Y*
- 6.09%
- 5Y*
- 1.20%
- 10Y*
- 2.69%
IGSB
- 1D
- 0.10%
- 1M
- 0.31%
- YTD
- 0.75%
- 6M
- 0.96%
- 1Y
- 4.10%
- 3Y*
- 5.72%
- 5Y*
- 2.47%
- 10Y*
- 2.71%
VFIDX vs. IGSB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VFIDX Vanguard Intermediate-Term Investment-Grade Fund Admiral Shares | -0.15% | 9.67% | 3.29% | 8.63% | -13.77% | -1.51% | 10.44% | 10.50% | -0.44% | 4.28% |
IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF | 0.75% | 6.96% | 4.97% | 6.40% | -5.63% | -0.56% | 5.37% | 7.11% | 1.25% | 1.27% |
Correlation
The correlation between VFIDX and IGSB is 0.85, 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 | 0.85 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.87 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.86 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.79 |
Correlation (All Time) Calculated using the full available price history since Jan 11, 2007 | 0.59 |
Over the past year, VFIDX and IGSB have become more correlated (0.85) than their long-term average of 0.59, meaning their price movements have been converging.
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Return for Risk
VFIDX vs. IGSB — Risk / Return Rank
VFIDX
IGSB
VFIDX vs. IGSB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Investment-Grade Fund Admiral Shares (VFIDX) and iShares 1-5 Year Investment Grade 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.
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.
| VFIDX | IGSB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.84 | ||
| Sortino ratioReturn per unit of downside risk | -1.31 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.42 | -0.19 |
| Calmar ratioReturn relative to maximum drawdown | 1.63 | 2.82 | -1.19 |
| Martin ratioReturn relative to average drawdown | 5.33 | 11.30 | -5.97 |
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Drawdowns
VFIDX vs. IGSB - Drawdown Comparison
The maximum VFIDX drawdown since its inception was -20.14%, which is greater than IGSB's maximum drawdown of -13.38%. Use the drawdown chart below to compare losses from any high point for VFIDX and IGSB.
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Drawdown Indicators
| VFIDX | IGSB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -20.14% | -13.38% | -6.76% |
Max Drawdown (1Y)Largest decline over 1 year | -3.34% | -1.46% | -1.88% |
Max Drawdown (3Y)Largest decline over 3 years | -6.08% | -1.46% | -4.62% |
Max Drawdown (5Y)Largest decline over 5 years | -20.14% | -9.46% | -10.68% |
Max Drawdown (10Y)Largest decline over 10 years | -20.14% | -13.38% | -6.76% |
Current DrawdownCurrent decline from peak | -1.63% | -0.28% | -1.35% |
Average DrawdownAverage peak-to-trough decline | -2.60% | -0.85% | -1.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.02% | 0.36% | +0.66% |
Volatility
VFIDX vs. IGSB - Volatility Comparison
Vanguard Intermediate-Term Investment-Grade Fund Admiral Shares (VFIDX) has a higher volatility of 1.34% compared to iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB) at 0.69%. This indicates that VFIDX'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
| VFIDX | IGSB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.34% | 0.69% | +0.65% |
Volatility (6M)Calculated over the trailing 6-month period | 3.25% | 1.50% | +1.75% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.27% | 1.95% | +2.32% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.40% | 2.94% | +3.46% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.20% | 3.47% | +1.73% |
VFIDX vs. IGSB - Expense Ratio Comparison
VFIDX has a 0.10% expense ratio, which is higher than IGSB'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
VFIDX vs. IGSB - Dividend Comparison
VFIDX's dividend yield for the trailing twelve months is around 5.12%, more than IGSB's 4.58% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF | 4.58% | 4.44% | 4.02% | 3.26% | 2.07% | 1.82% | 2.36% | 3.06% | 2.46% | 1.65% | 1.45% | 1.18% |
VFIDX Vanguard Intermediate-Term Investment-Grade Fund Admiral Shares | 5.12% | 4.91% | 4.65% | 3.90% | 3.20% | 3.61% | 5.80% | 3.13% | 3.32% | 3.06% | 3.94% | 3.64% |
Frequently Asked Questions
VFIDX and IGSB have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VFIDX has higher volatility (1.34%) compared to IGSB (0.69%). In terms of maximum drawdown, VFIDX dropped -20.14% vs IGSB's -13.38%.
IGSB currently has the higher Sharpe Ratio (2.11 vs 1.28), 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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