MPNIX vs. FMBIX

Last updated Apr 2, 2026

Compare and contrast key facts about BNY Mellon National Intermediate Municipal Bond Fund (MPNIX) and Fidelity Municipal Bond Index Fund (FMBIX).

MPNIX is managed by BNY Mellon. It was launched on Oct 1, 2000. FMBIX is managed by Fidelity. It was launched on Jul 11, 2019.

Performance

MPNIX vs. FMBIX - Performance Comparison

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

MPNIX vs. FMBIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
MPNIX BNY Mellon National Intermediate Municipal Bond Fund	100.99%	6.18%	1.22%	5.21%	-7.65%	0.88%	4.70%	1.93%
FMBIX Fidelity Municipal Bond Index Fund	0.00%	0.60%	1.32%	5.89%	-10.00%	1.14%	3.10%	1.48%

Returns By Period

MPNIX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

FMBIX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

MPNIX vs. FMBIX - Expense Ratio Comparison

MPNIX has a 0.50% expense ratio, which is higher than FMBIX's 0.07% expense ratio.

MPNIX

BNY Mellon National Intermediate Municipal Bond Fund

FMBIX

Fidelity Municipal Bond Index Fund

Return for Risk

MPNIX vs. FMBIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon National Intermediate Municipal Bond Fund (MPNIX) and Fidelity Municipal Bond Index Fund (FMBIX). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Correlation

The correlation between MPNIX and FMBIX is 0.86, 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

MPNIX vs. FMBIX - Dividend Comparison

MPNIX's dividend yield for the trailing twelve months is around 1.19%, while FMBIX has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MPNIX BNY Mellon National Intermediate Municipal Bond Fund	1.19%	3.76%	2.76%	2.09%	1.86%	2.09%	2.42%	2.65%	2.54%	2.33%	3.29%	2.67%
FMBIX Fidelity Municipal Bond Index Fund	0.00%	0.70%	2.60%	2.29%	1.17%	1.28%	1.59%	0.77%	0.00%	0.00%	0.00%	0.00%

Drawdowns

Volatility