Morningstar

MFS Inflation-Adjusted Bond Fund Class R6 MIAKX

Morningstar Medalist Rating
Medalist Rating as of | See MFS Investment Hub
  • NAV / 1-Day Return 8.89  /  −0.11 %
  • Total Assets 1.5B
  • Adj. Expense Ratio
    0.410%
  • Expense Ratio 0.410%
  • Distribution Fee Level Average
  • Share Class Type Retirement, Large
  • Category Inflation-Protected Bond
  • Credit Quality / Interest Rate Sensitivity High/Moderate
  • Min. Initial Investment 0
  • Status Open
  • TTM Yield 4.53%
  • Effective Duration 6.74 years

USD | NAV as of Aug 07, 2026 | 1-Day Return as of Aug 07, 2026, 12:11 AM GMT+0

Morningstar’s Analysis MIAKX

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

  • People Pillar

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

This strategy struggles to stand out in a competitive peer group.

Principal Shannon Kirwin

Shannon Kirwin

Principal

Summary

MFS Inflation-Adjusted Bond boasts experienced management and a straightforward investment process, but it struggles to stand out in a highly competitive peer group.

by Shannon Kirwin
Rated on Published on

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Portfolio Holdings MIAKX

More MIAKX Holdings
  • Current Portfolio Date
  • Equity Holdings —
  • Bond Holdings —
  • Other Holdings —
  • % Assets in Top 10 Holdings 79.0
Top 10 Holdings
% Portfolio Weight
Market Value USD
Sector

2 Year Treasury Note Future Sept 26

16.71 251M
Government

United States Treasury Notes 0.13%

11.21 168M
Government

United States Treasury Notes 0.13%

9.54 143M
Government

United States Treasury Notes 1.75%

7.81 117M
Government

United States Treasury Notes 0.88%

7.62 114M
Government

United States Treasury Notes 0.13%

6.50 98M
Government

United States Treasury Bonds 0.75%

5.57 84M
Government

United States Treasury Notes 1.13%

5.02 75M
Government

United States Treasury Notes 1.38%

4.63 69M
Government

United States Treasury Notes 1.88%

4.40 66M
Government

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