MFS Municipal Income Fund Class I (MIMIX)

NASDAQ · Mutual Fund · Delayed Price · Currency is USD
8.17
-0.02 (-0.24%)
At close: Mar 11, 2026
Fund Assets7.10B
Expense Ratio0.51%
Min. Investment$1,000
Turnover9.00%
Dividend (ttm)0.32
Dividend Yield3.89%
Dividend Growth4.26%
Payout FrequencyMonthly
Ex-Dividend DateFeb 27, 2026
Previous Close8.19
YTD Return0.64%
1-Year Return4.17%
5-Year Return5.99%
52-Week Low7.75
52-Week High8.29
Beta (5Y)n/a
Holdings2280
Inception DateAug 1, 2011

About MIMIX

MFS Municipal Income Fund Class I is a mutual fund specializing in municipal bonds, with a primary goal of generating total return while emphasizing income that is exempt from federal income tax. The fund typically allocates at least 80% of its net assets to municipal securities, which can include bonds supporting key public projects in sectors like education, healthcare, housing, utilities, water, and infrastructure. With a diverse portfolio of over 2,000 holdings and net assets exceeding $5.8 billion as of mid-2025, it aims for consistent long-term performance using a risk-aware, research-driven investment process led by a seasoned management team. The fund’s strategy provides investors with a tax-advantaged income stream, making it significant for those seeking municipal bond exposure and tax efficiency in their fixed-income allocations. It distributes income monthly and is guided by the Bloomberg Municipal Bond Index as its benchmark, supporting both individual and institutional investors in achieving stable income and potential capital appreciation within the broader municipal bond market.

Fund Family MFS
Category Muni National Long
Performance Rating High
Risk Rating Average
Stock Exchange NASDAQ
Ticker Symbol MIMIX
Share Class I
Index Bloomberg Municipal Bond TR

Performance

MIMIX had a total return of 4.17% in the past year, including dividends. Since the fund's inception, the average annual return has been 3.45%.

Equivalent Funds

These are funds that follow the same index from the other major fund companies.

SymbolProviderNameExpense Ratio
FLUVXFidelityFidelity Advisor Municipal Income Fund - Class M0.75%
FKISXFidelityFidelity Advisor Municipal Income Fund - Class C1.50%
FROGXFidelityFidelity Advisor Municipal Income Fund - Class I0.50%
FUENXFidelityFidelity Flex Municipal Income Fundn/a
FHIGXFidelityFidelity Municipal Income Fund0.43%

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

SymbolShare ClassExpense Ratio
MPMNXR60.44%
MMIDXA10.51%
MFIAXA0.76%
MMIGXB11.26%

Dividend History

Ex-DividendAmountPay Date
Feb 27, 2026$0.02516Mar 2, 2026
Jan 30, 2026$0.02753Feb 2, 2026
Dec 31, 2025$0.0273Dec 31, 2025
Nov 28, 2025$0.02617Dec 1, 2025
Oct 31, 2025$0.02735Nov 3, 2025
Sep 30, 2025$0.02689Oct 1, 2025
Full Dividend History