Morningstar

MFS Utilities Fund Class B MMUBX Fund Analysis

Morningstar Medalist Rating
| Medalist Rating as of | See MFS Investment Hub

Morningstar’s Analysis MMUBX

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

  • People Pillar

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

This strategy remains solid despite some recent headwinds and an impending retirement.

Senior Analyst Todd Trubey

Todd Trubey

Senior Analyst

Summary

On Dec. 1, 2025, MFS announced that portfolio manager Claud Davis intends to retire from the firm and the fund on Sept. 30, 2026. Davis has been a named manager on the fund since April 2014 and has comanaged with Scott Walker since August 2019. Walker will serve as the sole portfolio manager after Davis’ departure and maintain the current process. Davis and Walker served as good sounding boards for each other; individually, Davis brought extensive experience to the table, especially in analyzing domestic electric utilities and energy. Given Walker’s significant tenure here already, the transition should be smooth. Walker is an even-keeled, very logical, forthright investor. Given his steady hand and extensive experience, and the solid analyst backing from MFS, the fund’s Above Average People rating still applies.

by Todd Trubey
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