VMBS vs. FMSFX
Compare and contrast key facts about Vanguard Mortgage-Backed Securities ETF (VMBS) and Fidelity Mortgage Securities Fund (FMSFX).
VMBS is a passively managed fund by Vanguard that tracks the performance of the Barclays Capital U.S. MBS Index. It was launched on Nov 19, 2009. FMSFX is managed by Fidelity. It was launched on Dec 31, 1984.
Performance
VMBS vs. FMSFX - Performance Comparison
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VMBS vs. FMSFX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VMBS Vanguard Mortgage-Backed Securities ETF | 0.41% | 8.36% | 1.70% | 5.34% | -11.90% | -1.28% | 3.76% | 6.19% | 0.91% | 2.47% |
FMSFX Fidelity Mortgage Securities Fund | -0.01% | 8.29% | 1.00% | 4.91% | -12.61% | -1.20% | 4.41% | 6.43% | 0.79% | 2.35% |
Returns By Period
In the year-to-date period, VMBS achieves a 0.41% return, which is significantly higher than FMSFX's -0.01% return. Over the past 10 years, VMBS has outperformed FMSFX with an annualized return of 1.41%, while FMSFX has yielded a comparatively lower 1.27% annualized return.
VMBS
- 1D
- 0.21%
- 1M
- -1.57%
- YTD
- 0.41%
- 6M
- 2.06%
- 1Y
- 5.79%
- 3Y*
- 4.29%
- 5Y*
- 0.49%
- 10Y*
- 1.41%
FMSFX
- 1D
- 0.50%
- 1M
- -2.06%
- YTD
- -0.01%
- 6M
- 1.47%
- 1Y
- 4.96%
- 3Y*
- 3.85%
- 5Y*
- 0.05%
- 10Y*
- 1.27%
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VMBS vs. FMSFX - Expense Ratio Comparison
VMBS has a 0.04% expense ratio, which is lower than FMSFX's 0.45% expense ratio.
Return for Risk
VMBS vs. FMSFX — Risk / Return Rank
VMBS
FMSFX
VMBS vs. FMSFX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Mortgage-Backed Securities ETF (VMBS) and Fidelity Mortgage Securities Fund (FMSFX). 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.
| VMBS | FMSFX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.16 | 1.20 | -0.04 |
Sortino ratioReturn per unit of downside risk | 1.67 | 1.71 | -0.04 |
Omega ratioGain probability vs. loss probability | 1.21 | 1.22 | -0.01 |
Calmar ratioReturn relative to maximum drawdown | 1.95 | 1.96 | -0.01 |
Martin ratioReturn relative to average drawdown | 6.10 | 5.68 | +0.43 |
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
| VMBS | FMSFX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.16 | 1.20 | -0.04 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.07 | 0.01 | +0.07 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.26 | 0.25 | +0.01 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.46 | 1.02 | -0.56 |
Correlation
The correlation between VMBS and FMSFX is 0.81, 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
VMBS vs. FMSFX - Dividend Comparison
VMBS's dividend yield for the trailing twelve months is around 4.23%, more than FMSFX's 3.62% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VMBS Vanguard Mortgage-Backed Securities ETF | 4.23% | 4.20% | 3.94% | 3.31% | 2.35% | 1.02% | 2.01% | 2.77% | 2.72% | 2.16% | 2.10% | 2.12% |
FMSFX Fidelity Mortgage Securities Fund | 3.62% | 3.93% | 4.12% | 3.50% | 1.43% | 0.62% | 2.40% | 2.62% | 2.57% | 2.60% | 2.65% | 2.05% |
Drawdowns
VMBS vs. FMSFX - Drawdown Comparison
The maximum VMBS drawdown since its inception was -17.47%, smaller than the maximum FMSFX drawdown of -18.81%. Use the drawdown chart below to compare losses from any high point for VMBS and FMSFX.
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Drawdown Indicators
| VMBS | FMSFX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.47% | -18.81% | +1.34% |
Max Drawdown (1Y)Largest decline over 1 year | -3.00% | -3.10% | +0.10% |
Max Drawdown (5Y)Largest decline over 5 years | -17.12% | -18.66% | +1.54% |
Max Drawdown (10Y)Largest decline over 10 years | -17.47% | -18.81% | +1.34% |
Current DrawdownCurrent decline from peak | -1.57% | -2.06% | +0.49% |
Average DrawdownAverage peak-to-trough decline | -2.51% | -1.93% | -0.58% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.96% | 1.07% | -0.11% |
Volatility
VMBS vs. FMSFX - Volatility Comparison
Vanguard Mortgage-Backed Securities ETF (VMBS) has a higher volatility of 1.90% compared to Fidelity Mortgage Securities Fund (FMSFX) at 1.55%. This indicates that VMBS's price experiences larger fluctuations and is considered to be riskier than FMSFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VMBS | FMSFX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.90% | 1.55% | +0.35% |
Volatility (6M)Calculated over the trailing 6-month period | 2.89% | 2.55% | +0.34% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.00% | 4.63% | +0.37% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.71% | 6.74% | -0.03% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.37% | 5.10% | +0.27% |