FMSCX vs. FNSOX
Compare and contrast key facts about Fidelity Advisor Mortgage Securities Fund Class I (FMSCX) and Fidelity Short-Term Bond Index Fund (FNSOX).
FMSCX is managed by Fidelity. It was launched on Mar 3, 1997. FNSOX is managed by Fidelity. It was launched on Oct 18, 2017.
Performance
FMSCX vs. FNSOX - Performance Comparison
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FMSCX vs. FNSOX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FMSCX Fidelity Advisor Mortgage Securities Fund Class I | -0.13% | 8.25% | 0.29% | 4.54% | -12.63% | -1.17% | 4.27% | 6.17% | 0.74% | 0.14% |
FNSOX Fidelity Short-Term Bond Index Fund | -0.22% | 6.01% | 3.90% | 4.90% | -5.76% | -1.25% | 4.28% | 4.95% | 1.14% | -0.22% |
Returns By Period
In the year-to-date period, FMSCX achieves a -0.13% return, which is significantly higher than FNSOX's -0.22% return.
FMSCX
- 1D
- 0.51%
- 1M
- -2.17%
- YTD
- -0.13%
- 6M
- 1.31%
- 1Y
- 4.83%
- 3Y*
- 3.44%
- 5Y*
- -0.20%
- 10Y*
- 1.11%
FNSOX
- 1D
- 0.20%
- 1M
- -1.18%
- YTD
- -0.22%
- 6M
- 0.91%
- 1Y
- 3.69%
- 3Y*
- 4.22%
- 5Y*
- 1.56%
- 10Y*
- —
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FMSCX vs. FNSOX - Expense Ratio Comparison
FMSCX has a 0.51% expense ratio, which is higher than FNSOX's 0.03% expense ratio.
Return for Risk
FMSCX vs. FNSOX — Risk / Return Rank
FMSCX
FNSOX
FMSCX vs. FNSOX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Mortgage Securities Fund Class I (FMSCX) and Fidelity Short-Term Bond Index Fund (FNSOX). 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.
| FMSCX | FNSOX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.14 | 1.82 | -0.68 |
Sortino ratioReturn per unit of downside risk | 1.64 | 2.83 | -1.20 |
Omega ratioGain probability vs. loss probability | 1.21 | 1.37 | -0.16 |
Calmar ratioReturn relative to maximum drawdown | 1.96 | 2.86 | -0.90 |
Martin ratioReturn relative to average drawdown | 5.53 | 10.76 | -5.23 |
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
| FMSCX | FNSOX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.14 | 1.82 | -0.68 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.03 | 0.55 | -0.58 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.22 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.84 | 0.83 | +0.02 |
Correlation
The correlation between FMSCX and FNSOX is 0.80, 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
FMSCX vs. FNSOX - Dividend Comparison
FMSCX's dividend yield for the trailing twelve months is around 3.48%, more than FNSOX's 3.15% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FMSCX Fidelity Advisor Mortgage Securities Fund Class I | 3.48% | 3.78% | 3.42% | 3.18% | 1.37% | 0.75% | 2.26% | 2.37% | 2.53% | 2.55% | 2.60% | 2.00% |
FNSOX Fidelity Short-Term Bond Index Fund | 3.15% | 3.22% | 2.80% | 1.74% | 0.81% | 0.80% | 1.54% | 2.61% | 2.04% | 0.34% | 0.00% | 0.00% |
Drawdowns
FMSCX vs. FNSOX - Drawdown Comparison
The maximum FMSCX drawdown since its inception was -18.90%, which is greater than FNSOX's maximum drawdown of -8.92%. Use the drawdown chart below to compare losses from any high point for FMSCX and FNSOX.
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Drawdown Indicators
| FMSCX | FNSOX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.90% | -8.92% | -9.98% |
Max Drawdown (1Y)Largest decline over 1 year | -3.02% | -1.47% | -1.55% |
Max Drawdown (5Y)Largest decline over 5 years | -18.67% | -8.77% | -9.90% |
Max Drawdown (10Y)Largest decline over 10 years | -18.90% | — | — |
Current DrawdownCurrent decline from peak | -2.35% | -1.18% | -1.17% |
Average DrawdownAverage peak-to-trough decline | -1.98% | -1.75% | -0.23% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.07% | 0.39% | +0.68% |
Volatility
FMSCX vs. FNSOX - Volatility Comparison
Fidelity Advisor Mortgage Securities Fund Class I (FMSCX) has a higher volatility of 1.58% compared to Fidelity Short-Term Bond Index Fund (FNSOX) at 0.78%. This indicates that FMSCX's price experiences larger fluctuations and is considered to be riskier than FNSOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FMSCX | FNSOX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.58% | 0.78% | +0.80% |
Volatility (6M)Calculated over the trailing 6-month period | 2.57% | 1.37% | +1.20% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.65% | 2.21% | +2.44% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.76% | 2.86% | +3.90% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.10% | 2.48% | +2.62% |