MFIAX holdings — MFS Municipal Income Fund

MFS Municipal Income Fund (MFIAX) held 2,343 positions with net assets of $7.18B as of June 30, 2026, according to its Form N-PORT report to the SEC. Its top 10 holdings make up 5.6% of the fund, led by MFS Institutional Money Market Portfolio, Black Belt Energy Gas District, Texas Municipal Gas Acquisition & Supply Corp. IV.

MFIAX top holdings

  1. MFS Institutional Money Market Portfolio — 1.89% ($135M)
  2. Black Belt Energy Gas District — 0.52% ($37.1M)
  3. Texas Municipal Gas Acquisition & Supply Corp. IV — 0.45% ($32.5M)
  4. Princeton Independent School District — 0.42% ($30.2M)
  5. New York Transportation Development Corp. — 0.41% ($29.6M)
  6. New York Transportation Development Corp. — 0.41% ($29.6M)
  7. New Hampshire Business Finance Authority — 0.40% ($29.1M)
  8. California Community Choice Financing Authority — 0.39% ($27.8M)
  9. Black Belt Energy Gas District — 0.35% ($25.5M)
  10. Black Belt Energy Gas District — 0.35% ($25.1M)
  11. New Hampshire Business Finance Authority — 0.35% ($24.9M)
  12. Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue — 0.34% ($24.4M)
  13. Virginia Housing Development Authority — 0.31% ($22.3M)
  14. Pennsylvania Economic Development Financing Authority — 0.31% ($22.2M)
  15. Town of Queen Creek AZ — 0.31% ($22.1M)
  16. Connecticut State Health & Educational Facilities Authority — 0.30% ($21.8M)
  17. Dallas Metrocare Services — 0.30% ($21.4M)
  18. New York Transportation Development Corp. — 0.29% ($21.0M)
  19. Maryland Health & Higher Educational Facilities Authority — 0.29% ($21.0M)
  20. JEA Water & Sewer System Revenue — 0.29% ($20.9M)
  21. West Virginia Hospital Finance Authority — 0.29% ($20.8M)
  22. Tennergy Corp. — 0.29% ($20.5M)
  23. Delaware State Housing Authority — 0.28% ($20.3M)
  24. Black Belt Energy Gas District — 0.28% ($20.3M)
  25. Black Belt Energy Gas District — 0.28% ($20.2M)

What are MFIAX's top 10 holdings?

MFS Institutional Money Market Portfolio (1.9%), Black Belt Energy Gas District (0.5%), Texas Municipal Gas Acquisition & Supply Corp. IV (0.5%), Princeton Independent School District (0.4%), New York Transportation Development Corp. (0.4%), New York Transportation Development Corp. (0.4%), New Hampshire Business Finance Authority (0.4%), California Community Choice Financing Authority (0.4%), Black Belt Energy Gas District (0.4%), Black Belt Energy Gas District (0.3%).

How many stocks are in MFIAX?

MFS Municipal Income Fund reported 2,343 holdings as of June 30, 2026.

Share classes: MFIAX, MIMIX, MMIBX, MMICX, MMIDX, MMIGX, MPMNX

All ETF and mutual fund holdings