Morningstar

MFS Mississippi Municipal Bond Fund Class I MMSTX

Morningstar Medalist Rating
Medalist Rating as of | See MFS Investment Hub
  • NAV / 1-Day Return 8.84  /  −0.23 %
  • Total Assets 61.6M
  • Adj. Expense Ratio
    0.660%
  • Expense Ratio 0.660%
  • Distribution Fee Level High
  • Share Class Type Institutional
  • Category Muni Single State Long
  • Credit Quality / Interest Rate Sensitivity —
  • Min. Initial Investment 0
  • Status Open
  • TTM Yield 3.49%
  • Effective Duration 7.85 years

USD | NAV as of Jul 22, 2026 | 1-Day Return as of Jul 22, 2026, 1:30 AM GMT+0

Morningstar’s Analysis MMSTX

Will MMSTX outperform in the future?

Get our overall rating based on a fundamental assessment of the pillars below.

  • Process Pillar

    The Process Pillar is our assessment of how sensible, clearly defined, and repeatable MMSTX’s performance objective and investment process is for both security selection and portfolio construction.

  • People Pillar

    The People Pillar is our evaluation of the MMSTX management team’s experience and ability. We find that high-quality management teams deliver superior performance relative to their benchmarks and/or peers.

  • Parent Pillar

    The Parent Pillar is our rating of MMSTX’s parent organization’s priorities and whether they’re in line with investors’ interests.

null Morningstar Automated Analysis

Morningstar Automated Analysis

Summary

MFS MS Municipal Bond I holds a quantitatively derived Silver Morningstar Medalist Rating. The rating reflects that it has scored well on factors Morningstar research associates with future outperformance relative to category peers.

by Morningstar Automated Analysis
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Portfolio Holdings MMSTX

More MMSTX Holdings
  • Current Portfolio Date
  • Equity Holdings —
  • Bond Holdings —
  • Other Holdings —
  • % Assets in Top 10 Holdings 21.0
Top 10 Holdings
% Portfolio Weight
Market Value USD
Sector

JACKSON CNTY MISS UTIL AUTH WTR & WASTEWATER TREATMENT SYS REV 5%

3.26 2M
municipal

MISSISSIPPI HOME CORP SINGLE FAMILY MTG REV 4.65%

2.82 2M
municipal

MISSISSIPPI DEV BK SPL OBLIG 4%

2.28 1M
municipal

MEDICAL CENTER BUILDING CORP MISS REV 5%

2.03 1M
municipal

MEDICAL CENTER BUILDING CORP MISS REV 5%

2.02 1M
municipal

MISSISSIPPI DEV BK SPL OBLIG 4%

1.77 1M
municipal

MISSISSIPPI DEV BK 5.25%

1.75 1M
municipal

MISSISSIPPI DEV BK SPL OBLIG 5%

1.72 1M
municipal

WEST RANKIN MISS UTIL AUTH REV 5%

1.70 1M
municipal

MISSISSIPPI ST ALCOHOLIC BEVERAGE CTL REV 5%

1.69 1M
municipal

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