FMSFX vs. ZROZ
Compare and contrast key facts about Fidelity Mortgage Securities Fund (FMSFX) and PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ).
FMSFX is managed by Fidelity. It was launched on Dec 31, 1984. ZROZ is a passively managed fund by PIMCO that tracks the performance of the BofA Merrill Lynch Long Treasury Principal STRIPS Index. It was launched on Oct 30, 2009.
Performance
FMSFX vs. ZROZ - Performance Comparison
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FMSFX vs. ZROZ - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
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% |
ZROZ PIMCO 25+ Year Zero Coupon US Treasury Index Fund | -0.37% | -1.84% | -16.18% | 1.19% | -41.28% | -5.22% | 24.57% | 21.22% | -5.43% | 14.77% |
Returns By Period
In the year-to-date period, FMSFX achieves a -0.01% return, which is significantly higher than ZROZ's -0.37% return. Over the past 10 years, FMSFX has outperformed ZROZ with an annualized return of 1.27%, while ZROZ has yielded a comparatively lower -3.82% annualized return.
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%
ZROZ
- 1D
- -0.61%
- 1M
- -6.35%
- YTD
- -0.37%
- 6M
- -3.49%
- 1Y
- -6.32%
- 3Y*
- -8.90%
- 5Y*
- -11.00%
- 10Y*
- -3.82%
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FMSFX vs. ZROZ - Expense Ratio Comparison
FMSFX has a 0.45% expense ratio, which is higher than ZROZ's 0.15% expense ratio.
Return for Risk
FMSFX vs. ZROZ — Risk / Return Rank
FMSFX
ZROZ
FMSFX vs. ZROZ - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Mortgage Securities Fund (FMSFX) and PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ). 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.
| FMSFX | ZROZ | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.20 | -0.33 | +1.54 |
Sortino ratioReturn per unit of downside risk | 1.71 | -0.34 | +2.05 |
Omega ratioGain probability vs. loss probability | 1.22 | 0.96 | +0.26 |
Calmar ratioReturn relative to maximum drawdown | 1.96 | -0.30 | +2.27 |
Martin ratioReturn relative to average drawdown | 5.68 | -0.53 | +6.21 |
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
| FMSFX | ZROZ | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.20 | -0.33 | +1.54 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.01 | -0.46 | +0.47 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.25 | -0.17 | +0.42 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.02 | 0.09 | +0.93 |
Correlation
The correlation between FMSFX and ZROZ is 0.68, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
FMSFX vs. ZROZ - Dividend Comparison
FMSFX's dividend yield for the trailing twelve months is around 3.62%, less than ZROZ's 4.98% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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% |
ZROZ PIMCO 25+ Year Zero Coupon US Treasury Index Fund | 4.98% | 4.96% | 4.58% | 3.52% | 2.76% | 1.60% | 1.68% | 2.22% | 2.06% | 2.53% | 3.00% | 2.98% |
Drawdowns
FMSFX vs. ZROZ - Drawdown Comparison
The maximum FMSFX drawdown since its inception was -18.81%, smaller than the maximum ZROZ drawdown of -62.93%. Use the drawdown chart below to compare losses from any high point for FMSFX and ZROZ.
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Drawdown Indicators
| FMSFX | ZROZ | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.81% | -62.93% | +44.12% |
Max Drawdown (1Y)Largest decline over 1 year | -3.10% | -15.63% | +12.53% |
Max Drawdown (5Y)Largest decline over 5 years | -18.66% | -57.98% | +39.32% |
Max Drawdown (10Y)Largest decline over 10 years | -18.81% | -62.93% | +44.12% |
Current DrawdownCurrent decline from peak | -2.06% | -59.65% | +57.59% |
Average DrawdownAverage peak-to-trough decline | -1.93% | -23.66% | +21.73% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.07% | 8.99% | -7.92% |
Volatility
FMSFX vs. ZROZ - Volatility Comparison
The current volatility for Fidelity Mortgage Securities Fund (FMSFX) is 1.55%, while PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ) has a volatility of 5.79%. This indicates that FMSFX experiences smaller price fluctuations and is considered to be less risky than ZROZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FMSFX | ZROZ | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.55% | 5.79% | -4.24% |
Volatility (6M)Calculated over the trailing 6-month period | 2.55% | 10.85% | -8.30% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.63% | 19.16% | -14.53% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.74% | 23.93% | -17.19% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.10% | 22.09% | -16.99% |