Morningstar

MFS Municipal High Income Fund Class A MMHYX

Morningstar Medalist Rating
Medalist Rating as of | See MFS Investment Hub
  • NAV / 1-Day Return 7.48  /  −0.13 %
  • Total Assets 5.6B
  • Adj. Expense Ratio
    0.660%
  • Expense Ratio 0.660%
  • Distribution Fee Level Low
  • Share Class Type Front Load
  • Category High Yield Muni
  • Credit Quality / Interest Rate Sensitivity —
  • Min. Initial Investment 1,000
  • Status Open
  • TTM Yield 4.36%
  • Effective Duration 8.04 years

USD | NAV as of Jun 06, 2026 | 1-Day Return as of Jun 06, 2026, 2:45 AM GMT+0

Morningstar’s Analysis MMHYX

Will MMHYX 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 MMHYX’s performance objective and investment process is for both security selection and portfolio construction.

  • People Pillar

    The People Pillar is our evaluation of the MMHYX 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 MMHYX’s parent organization’s priorities and whether they’re in line with investors’ interests.

A steady high-yield muni option.

Associate Director Tom Murphy

Tom Murphy

Associate Director

Summary

MFS Municipal High Income’s collaborative team follows a relative value framework that has delivered for investors over the long haul.

by Tom Murphy
Rated on Published on

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Portfolio Holdings MMHYX

More MMHYX Holdings
  • Current Portfolio Date
  • Equity Holdings —
  • Bond Holdings —
  • Other Holdings —
  • % Assets in Top 10 Holdings 6.2
Top 10 Holdings
% Portfolio Weight
Market Value USD
Sector

Currency Cash CASH_USD

2.40 130M
Cash and Equivalents

PUERTO RICO SALES TAX FING CORP SALES TAX REV 5%

1.88 102M
municipal

BERKS CNTY PA MUN AUTH REV 5%

0.60 33M
municipal

BUCKEYE OHIO TOB SETTLEMENT FING AUTH 5%

0.59 32M
municipal

CALIFORNIA CMNTY CHOICE FING AUTH CLEAN ENERGY PROJ REV 5.25%

0.50 27M
municipal

NEW YORK TRANSN DEV CORP SPL FAC REV 5.13%

0.46 25M
municipal

CHICAGO ILL 5%

0.45 24M
municipal

NATIONAL FIN AUTH N H LEASE RENT REV 5.88%

0.45 24M
municipal

NEW YORK TRANSN DEV CORP SPL FAC REV 5.25%

0.44 24M
municipal

TOBACCO SETTLEMENT AUTH IOWA TOB SETTLEMENT REV 0%

0.42 23M
municipal

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