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FMBIX vs. FXNAX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between FMBIX and FXNAX is 0.51, 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.


-0.50.00.51.00.5

Performance

FMBIX vs. FXNAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Municipal Bond Index Fund (FMBIX) and Fidelity U.S. Bond Index Fund (FXNAX). The values are adjusted to include any dividend payments, if applicable.

-1.00%0.00%1.00%2.00%3.00%SeptemberOctoberNovemberDecember2025
0.86%
0.25%
FMBIX
FXNAX

Key characteristics

Sharpe Ratio

FMBIX:

0.53

FXNAX:

0.67

Sortino Ratio

FMBIX:

0.73

FXNAX:

0.99

Omega Ratio

FMBIX:

1.11

FXNAX:

1.12

Calmar Ratio

FMBIX:

0.34

FXNAX:

0.27

Martin Ratio

FMBIX:

1.67

FXNAX:

1.80

Ulcer Index

FMBIX:

1.11%

FXNAX:

1.96%

Daily Std Dev

FMBIX:

3.53%

FXNAX:

5.40%

Max Drawdown

FMBIX:

-14.06%

FXNAX:

-19.34%

Current Drawdown

FMBIX:

-1.58%

FXNAX:

-7.45%

Returns By Period

In the year-to-date period, FMBIX achieves a 0.11% return, which is significantly lower than FXNAX's 0.39% return.


FMBIX

YTD

0.11%

1M

0.11%

6M

0.85%

1Y

2.28%

5Y*

0.33%

10Y*

N/A

FXNAX

YTD

0.39%

1M

0.39%

6M

0.26%

1Y

3.02%

5Y*

-0.38%

10Y*

1.31%

*Annualized

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


FMBIX vs. FXNAX - Expense Ratio Comparison

FMBIX has a 0.07% expense ratio, which is higher than FXNAX's 0.03% 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%.


FMBIX
Fidelity Municipal Bond Index Fund
Expense ratio chart for FMBIX: current value at 0.07% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.07%
Expense ratio chart for FXNAX: current value at 0.03% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.03%

Risk-Adjusted Performance

FMBIX vs. FXNAX — Risk-Adjusted Performance Rank

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

FMBIX
The Risk-Adjusted Performance Rank of FMBIX is 2323
Overall Rank
The Sharpe Ratio Rank of FMBIX is 2222
Sharpe Ratio Rank
The Sortino Ratio Rank of FMBIX is 2020
Sortino Ratio Rank
The Omega Ratio Rank of FMBIX is 2323
Omega Ratio Rank
The Calmar Ratio Rank of FMBIX is 2626
Calmar Ratio Rank
The Martin Ratio Rank of FMBIX is 2323
Martin Ratio Rank

FXNAX
The Risk-Adjusted Performance Rank of FXNAX is 2727
Overall Rank
The Sharpe Ratio Rank of FXNAX is 3131
Sharpe Ratio Rank
The Sortino Ratio Rank of FXNAX is 3232
Sortino Ratio Rank
The Omega Ratio Rank of FXNAX is 2626
Omega Ratio Rank
The Calmar Ratio Rank of FXNAX is 2121
Calmar Ratio Rank
The Martin Ratio Rank of FXNAX is 2525
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.

FMBIX vs. FXNAX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Municipal Bond Index Fund (FMBIX) and Fidelity U.S. Bond Index Fund (FXNAX). 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.


Sharpe ratio
The chart of Sharpe ratio for FMBIX, currently valued at 0.63, compared to the broader market-1.000.001.002.003.004.000.630.67
The chart of Sortino ratio for FMBIX, currently valued at 0.86, compared to the broader market0.002.004.006.008.0010.0012.000.860.99
The chart of Omega ratio for FMBIX, currently valued at 1.13, compared to the broader market1.002.003.004.001.131.12
The chart of Calmar ratio for FMBIX, currently valued at 0.40, compared to the broader market0.005.0010.0015.0020.000.400.27
The chart of Martin ratio for FMBIX, currently valued at 1.97, compared to the broader market0.0020.0040.0060.0080.001.971.80
FMBIX
FXNAX

The current FMBIX Sharpe Ratio is 0.53, which is comparable to the FXNAX Sharpe Ratio of 0.67. The chart below compares the historical Sharpe Ratios of FMBIX and FXNAX, 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 Ratio0.001.002.003.004.00SeptemberOctoberNovemberDecember2025
0.63
0.67
FMBIX
FXNAX

Dividends

FMBIX vs. FXNAX - Dividend Comparison

FMBIX's dividend yield for the trailing twelve months is around 3.01%, less than FXNAX's 4.25% yield.


TTM20242023202220212020201920182017201620152014
FMBIX
Fidelity Municipal Bond Index Fund
3.01%3.23%2.89%2.30%1.42%1.59%0.77%0.00%0.00%0.00%0.00%0.00%
FXNAX
Fidelity U.S. Bond Index Fund
4.25%4.54%3.67%3.04%1.81%2.10%2.69%3.19%2.52%2.52%2.69%2.59%

Drawdowns

FMBIX vs. FXNAX - Drawdown Comparison

The maximum FMBIX drawdown since its inception was -14.06%, smaller than the maximum FXNAX drawdown of -19.34%. Use the drawdown chart below to compare losses from any high point for FMBIX and FXNAX. For additional features, visit the drawdowns tool.


-8.00%-6.00%-4.00%-2.00%0.00%SeptemberOctoberNovemberDecember2025
-1.58%
-7.45%
FMBIX
FXNAX

Volatility

FMBIX vs. FXNAX - Volatility Comparison

The current volatility for Fidelity Municipal Bond Index Fund (FMBIX) is 1.10%, while Fidelity U.S. Bond Index Fund (FXNAX) has a volatility of 1.42%. This indicates that FMBIX experiences smaller price fluctuations and is considered to be less risky than FXNAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


0.50%1.00%1.50%2.00%SeptemberOctoberNovemberDecember2025
1.10%
1.42%
FMBIX
FXNAX
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Disclaimer

The information contained herein does not constitute investment advice and made available for educational purposes only. Prices and returns on equities are listed without consideration of fees, commissions, taxes, penalties, or interest payable due to purchasing, holding, or selling.

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