VSGBX vs. VMBSX
Compare and contrast key facts about Vanguard Short-Term Federal Fund Investor Shares (VSGBX) and Vanguard Mortgage-Backed Securities Index Fund Admiral Shares (VMBSX).
VSGBX is managed by Vanguard. It was launched on Dec 31, 1987. VMBSX is managed by Vanguard. It was launched on Dec 3, 2009.
Performance
VSGBX vs. VMBSX - Performance Comparison
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VSGBX vs. VMBSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VSGBX Vanguard Short-Term Federal Fund Investor Shares | 0.04% | 5.83% | 4.17% | 3.82% | -5.31% | -0.66% | 4.36% | 4.10% | 1.27% | 0.69% |
VMBSX Vanguard Mortgage-Backed Securities Index Fund Admiral Shares | 0.15% | 8.43% | 1.76% | 4.99% | -11.56% | -1.35% | 3.74% | 11.47% | 0.87% | 2.32% |
Returns By Period
In the year-to-date period, VSGBX achieves a 0.04% return, which is significantly lower than VMBSX's 0.15% return. Both investments have delivered pretty close results over the past 10 years, with VSGBX having a 1.78% annualized return and VMBSX not far ahead at 1.85%.
VSGBX
- 1D
- -0.10%
- 1M
- -0.68%
- YTD
- 0.04%
- 6M
- 1.09%
- 1Y
- 3.95%
- 3Y*
- 4.18%
- 5Y*
- 1.56%
- 10Y*
- 1.78%
VMBSX
- 1D
- -0.27%
- 1M
- -1.32%
- YTD
- 0.15%
- 6M
- 1.36%
- 1Y
- 5.25%
- 3Y*
- 4.23%
- 5Y*
- 0.43%
- 10Y*
- 1.85%
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VSGBX vs. VMBSX - Expense Ratio Comparison
VSGBX has a 0.20% expense ratio, which is higher than VMBSX's 0.07% 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%.
Return for Risk
VSGBX vs. VMBSX — Risk / Return Rank
VSGBX
VMBSX
VSGBX vs. VMBSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Federal Fund Investor Shares (VSGBX) and Vanguard Mortgage-Backed Securities Index Fund Admiral Shares (VMBSX). 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.
| VSGBX | VMBSX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.75 | 1.18 | +0.56 |
Sortino ratioReturn per unit of downside risk | 2.94 | 1.69 | +1.25 |
Omega ratioGain probability vs. loss probability | 1.36 | 1.21 | +0.14 |
Calmar ratioReturn relative to maximum drawdown | 2.85 | 2.07 | +0.78 |
Martin ratioReturn relative to average drawdown | 10.28 | 5.80 | +4.48 |
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
| VSGBX | VMBSX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.75 | 1.18 | +0.56 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.59 | 0.07 | +0.53 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.84 | 0.38 | +0.45 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.65 | 0.58 | +1.06 |
Correlation
The correlation between VSGBX and VMBSX is 0.72, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
VSGBX vs. VMBSX - Dividend Comparison
VSGBX's dividend yield for the trailing twelve months is around 3.49%, less than VMBSX's 3.87% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VSGBX Vanguard Short-Term Federal Fund Investor Shares | 3.49% | 3.69% | 3.47% | 3.32% | 1.67% | 1.37% | 1.68% | 2.32% | 1.92% | 1.35% | 1.33% | 1.20% |
VMBSX Vanguard Mortgage-Backed Securities Index Fund Admiral Shares | 3.87% | 4.18% | 4.24% | 3.28% | 2.31% | 0.99% | 2.00% | 7.48% | 2.72% | 2.16% | 1.98% | 2.01% |
Drawdowns
VSGBX vs. VMBSX - Drawdown Comparison
The maximum VSGBX drawdown since its inception was -7.42%, smaller than the maximum VMBSX drawdown of -17.44%. Use the drawdown chart below to compare losses from any high point for VSGBX and VMBSX.
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Drawdown Indicators
| VSGBX | VMBSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -7.42% | -17.44% | +10.02% |
Max Drawdown (1Y)Largest decline over 1 year | -1.35% | -2.59% | +1.24% |
Max Drawdown (5Y)Largest decline over 5 years | -7.42% | -17.12% | +9.70% |
Max Drawdown (10Y)Largest decline over 10 years | -7.42% | -17.44% | +10.02% |
Current DrawdownCurrent decline from peak | -0.96% | -1.87% | +0.91% |
Average DrawdownAverage peak-to-trough decline | -0.74% | -2.49% | +1.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.37% | 0.93% | -0.56% |
Volatility
VSGBX vs. VMBSX - Volatility Comparison
The current volatility for Vanguard Short-Term Federal Fund Investor Shares (VSGBX) is 0.74%, while Vanguard Mortgage-Backed Securities Index Fund Admiral Shares (VMBSX) has a volatility of 1.67%. This indicates that VSGBX experiences smaller price fluctuations and is considered to be less risky than VMBSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VSGBX | VMBSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.74% | 1.67% | -0.93% |
Volatility (6M)Calculated over the trailing 6-month period | 1.31% | 2.51% | -1.20% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.21% | 4.33% | -2.12% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.63% | 6.36% | -3.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.14% | 4.83% | -2.69% |