Morningstar

MassMutual Mid Cap Growth Fund Class I MEFZX

Morningstar Medalist Rating
Medalist Rating as of | See MassMutual Investment Hub
  • NAV / 1-Day Return 17.38  /  −0.29 %
  • Total Assets 2.2B
  • Adj. Expense Ratio
    0.660%
  • Expense Ratio 0.660%
  • Distribution Fee Level Low
  • Share Class Type Institutional
  • Category Mid-Cap Growth
  • Investment Style Mid Growth
  • Min. Initial Investment 0
  • Status Open
  • TTM Yield 0.00
  • Turnover 38%

USD | NAV as of Jul 20, 2026 | 1-Day Return as of Jul 20, 2026, 10:15 PM GMT+0

Morningstar’s Analysis MEFZX

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

  • People Pillar

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

null Morningstar Automated Analysis

Morningstar Automated Analysis

Summary

MassMutual Mid Cap Growth I holds a quantitatively derived Neutral Morningstar Medalist Rating. The rating suggests the model does not express a clear expectation of outperformance or underperformance relative to peers over a full market cycle.

by Morningstar Automated Analysis
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Portfolio Holdings MEFZX

More MEFZX Holdings
  • Current Portfolio Date
  • Equity Holdings —
  • Bond Holdings —
  • Other Holdings —
  • % Assets in Top 10 Holdings 17.0
Top 10 Holdings
% Portfolio Weight
Market Value USD
Sector

Datadog Inc Class A

2.07 52M
Technology

Agilent Technologies Inc

1.96 49M
Healthcare

Teradyne Inc

1.83 46M
Technology

Mettler-Toledo International Inc

1.76 44M
Healthcare

Snowflake Inc Ordinary Shares

1.64 41M
Technology

Fixed Inc Clearing Corp.Repo

1.62 41M
Cash and Equivalents

Burlington Stores Inc

1.60 40M
Consumer Cyclical

Lattice Semiconductor Corp

1.58 40M
Technology

Keysight Technologies Inc

1.57 39M
Technology

XPO Inc

1.52 38M
Industrials

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