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FMSFX vs. ZROZ
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between FMSFX and ZROZ is -0.09. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.


-0.50.00.51.0
Correlation: -0.1

Performance

FMSFX vs. ZROZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Mortgage Securities Fund (FMSFX) and PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ). The values are adjusted to include any dividend payments, if applicable.

30.00%35.00%40.00%45.00%50.00%55.00%60.00%65.00%December2025FebruaryMarchAprilMay
37.26%
43.70%
FMSFX
ZROZ

Key characteristics

Sharpe Ratio

FMSFX:

0.96

ZROZ:

-0.03

Sortino Ratio

FMSFX:

1.43

ZROZ:

0.11

Omega Ratio

FMSFX:

1.17

ZROZ:

1.01

Calmar Ratio

FMSFX:

0.46

ZROZ:

-0.01

Martin Ratio

FMSFX:

2.44

ZROZ:

-0.06

Ulcer Index

FMSFX:

2.37%

ZROZ:

12.53%

Daily Std Dev

FMSFX:

6.04%

ZROZ:

23.28%

Max Drawdown

FMSFX:

-18.94%

ZROZ:

-62.93%

Current Drawdown

FMSFX:

-6.80%

ZROZ:

-59.30%

Returns By Period

In the year-to-date period, FMSFX achieves a 2.10% return, which is significantly higher than ZROZ's -1.42% return. Over the past 10 years, FMSFX has outperformed ZROZ with an annualized return of 0.87%, while ZROZ has yielded a comparatively lower -2.53% annualized return.


FMSFX

YTD

2.10%

1M

-1.91%

6M

2.16%

1Y

5.79%

5Y*

-1.23%

10Y*

0.87%

ZROZ

YTD

-1.42%

1M

-9.06%

6M

-7.09%

1Y

-3.55%

5Y*

-15.46%

10Y*

-2.53%

*Annualized

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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.


Expense ratio chart for FMSFX: current value is 0.45%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
FMSFX: 0.45%
Expense ratio chart for ZROZ: current value is 0.15%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
ZROZ: 0.15%

Risk-Adjusted Performance

FMSFX vs. ZROZ — Risk-Adjusted Performance Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

FMSFX
The Risk-Adjusted Performance Rank of FMSFX is 6363
Overall Rank
The Sharpe Ratio Rank of FMSFX is 7171
Sharpe Ratio Rank
The Sortino Ratio Rank of FMSFX is 7272
Sortino Ratio Rank
The Omega Ratio Rank of FMSFX is 6464
Omega Ratio Rank
The Calmar Ratio Rank of FMSFX is 5151
Calmar Ratio Rank
The Martin Ratio Rank of FMSFX is 5757
Martin Ratio Rank

ZROZ
The Risk-Adjusted Performance Rank of ZROZ is 1515
Overall Rank
The Sharpe Ratio Rank of ZROZ is 1515
Sharpe Ratio Rank
The Sortino Ratio Rank of ZROZ is 1515
Sortino Ratio Rank
The Omega Ratio Rank of ZROZ is 1515
Omega Ratio Rank
The Calmar Ratio Rank of ZROZ is 1515
Calmar Ratio Rank
The Martin Ratio Rank of ZROZ is 1515
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

FMSFX vs. ZROZ - Risk-Adjusted Performance 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.


The chart of Sharpe ratio for FMSFX, currently valued at 0.96, compared to the broader market-2.00-1.000.001.002.003.00
FMSFX: 0.96
ZROZ: -0.15
The chart of Sortino ratio for FMSFX, currently valued at 1.43, compared to the broader market-2.000.002.004.006.008.00
FMSFX: 1.43
ZROZ: -0.05
The chart of Omega ratio for FMSFX, currently valued at 1.17, compared to the broader market0.501.001.502.002.503.00
FMSFX: 1.17
ZROZ: 0.99
The chart of Calmar ratio for FMSFX, currently valued at 0.46, compared to the broader market0.002.004.006.008.0010.00
FMSFX: 0.46
ZROZ: -0.06
The chart of Martin ratio for FMSFX, currently valued at 2.44, compared to the broader market0.0010.0020.0030.0040.00
FMSFX: 2.44
ZROZ: -0.28

The current FMSFX Sharpe Ratio is 0.96, which is higher than the ZROZ Sharpe Ratio of -0.03. The chart below compares the historical Sharpe Ratios of FMSFX and ZROZ, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio-0.500.000.501.00December2025FebruaryMarchAprilMay
0.96
-0.15
FMSFX
ZROZ

Dividends

FMSFX vs. ZROZ - Dividend Comparison

FMSFX's dividend yield for the trailing twelve months is around 3.88%, less than ZROZ's 4.71% yield.


TTM20242023202220212020201920182017201620152014
FMSFX
Fidelity Mortgage Securities Fund
3.88%4.13%3.50%1.90%0.47%1.54%2.63%2.57%2.61%2.34%2.31%2.52%
ZROZ
PIMCO 25+ Year Zero Coupon US Treasury Index Fund
4.71%4.58%3.52%2.76%1.60%1.68%2.22%2.91%2.53%3.00%2.98%2.00%

Drawdowns

FMSFX vs. ZROZ - Drawdown Comparison

The maximum FMSFX drawdown since its inception was -18.94%, 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. For additional features, visit the drawdowns tool.


-60.00%-50.00%-40.00%-30.00%-20.00%-10.00%0.00%December2025FebruaryMarchAprilMay
-6.80%
-59.30%
FMSFX
ZROZ

Volatility

FMSFX vs. ZROZ - Volatility Comparison

The current volatility for Fidelity Mortgage Securities Fund (FMSFX) is 2.41%, while PIMCO 25+ Year Zero Coupon US Treasury Index Fund (ZROZ) has a volatility of 9.84%. 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.


2.00%4.00%6.00%8.00%10.00%December2025FebruaryMarchAprilMay
2.41%
9.84%
FMSFX
ZROZ