Mfs Municipal High Income Fund Class I (MMIIX) Fund Details & Analysis

Fund Information

Fund Category High Yield Muni

Fund Family MFS

Fund Style Large

ISIN US5529846926

CUSIP 552984692

Inception Date 1984-02-24

Domicile United States

Country USA

Fiscal Year End January

NAV Chart

Fund Metrics

Net Assets $5.26 Billion

Share Class Net Assets $2.28 Billion

Expense Ratio 0.61%

Expense Ratio Date 2025-05-30

Dividend Yield 0.00%

Morning Star Rating -

Morning Star Risk Rating -

Morning Star Category -

Performance

YTD Return 0.59%

1-Year Return 3.77%

3-Year Return 4.50%

5-Year Return 1.09%

NAV $7.44

Previous Close Price $8.11

Last Update 2025-12-31

Dividend Information

Dividend Yield 0.00%

Dividend (ttm) 0.17

Dividend Growth -58.12%

Payout Frequency Annual

Ex-Dividend Date n/a

Ratings

Morning Star Rating -

Morning Star Risk Rating -

Morning Star Category -

Beta (5Y) 1.23

About MFS Municipal High Income Fund Class I

The fund invests normally at least 80% of its net assets in securities and other investments, the interest on which is exempt from federal income tax. Interest from the fund's investments may be subject to the federal alternative minimum tax.

Detailed Metrics

Market Cap Distribution

AverageMarketCap %

Giant %

Large %

Medium %

Micro %

Small %

Value & Growth Metrics

Book-Value Growth % %

Cash-Flow Growth % %

Dividend Yield % %

Historical Earnings % %

Long-Term Earnings % %

Asset Allocation

Type	Net %	Long %	Short %	Category Average	benchmark
Bond	98.15%	98.15%	0.00%	96.82%	0.00%
Cash	1.85%	1.85%	0.00%	3.42%	0.00%
Non US Stock	0.00%	0.00%	0.00%	0.00%	0.00%
Not Classified	0.00%	0.00%	0.00%	0.00%	0.00%
Other	0.00%	0.00%	0.00%	0.08%	0.00%
US Stock	0.00%	0.00%	0.00%	0.00%	0.00%

Top Holdings

Name	Weight	Owned	Change
MFS Institutional Money Market Portfolio, Class A	0.60%	-	-
Puerto Rico Sales Tax Financing Corp. Sales Tax	1.96%	-	-
Buckeye Tobacco Settlement Financing Authority	0.64%	-	-
New York City Housing Development Corp.	1.06%	-	-
California Community Choice Financing Authority	0.54%	-	-
New York Transportation Development Corp., Series 2023	0.48%	-	-
City of Chicago	0.49%	-	-
New York Liberty Development Corp.	0.52%	-	-
New Hampshire Business Finance Authority, Series 2023A	0.47%	-	-
Iowa Tobacco Settlement Authority	0.46%	-	-
Berks County Municipal Authority (The), Series 2024A-3	0.60%	-	-
Public Finance Authority	0.56%	-	-
New York Transportation Development Corp., Series 2024	0.46%	-	-

See the full breakdown of MMIIX fund's asset allocation and top holdings .

Sector Weights

Category	Subcategory	Amount %	Category Avg	Stocks %	Benchmark
Bond Sector	Cash and Equivalents	0.00%	3.41%	1.85%	0.00%
Bond Sector	Corporate	0.00%	0.25%	0.29%	0.00%
Bond Sector	Derivative	0.00%	0.00%	0.00%	0.00%
Bond Sector	Government	0.00%	0.02%	0.00%	0.00%
Bond Sector	Municipal	0.00%	96.19%	97.86%	0.00%
Bond Sector	Securitized	0.00%	0.13%	0.00%	0.00%
Cyclical	Basic Materials	0.00%	0.00%	0.00%	0.00%
Cyclical	Consumer Cyclical	0.00%	0.00%	0.00%	0.00%
Cyclical	Financial Services	0.00%	0.00%	0.00%	0.00%
Cyclical	Real Estate	0.00%	0.00%	0.00%	0.00%
Defensive	Consumer Defensive	0.00%	0.00%	0.00%	0.00%
Defensive	Healthcare	0.00%	0.00%	0.00%	0.00%
Defensive	Utilities	0.00%	0.00%	0.00%	0.00%
Sensitive	Communication Services	0.00%	0.00%	0.00%	0.00%
Sensitive	Energy	0.00%	0.00%	0.00%	0.00%
Sensitive	Industrials	0.00%	0.00%	0.00%	0.00%
Sensitive	Technology	0.00%	0.00%	0.00%	0.00%

World Regions

Region	Subregion	Category Average	Stocks Percent	Benchmark
Americas	Latin America	-	-	-
Americas	North America	-	-	-
Greater Asia	Asia Developed	-	-	-
Greater Asia	Asia Emerging	-	-	-
Greater Asia	Australasia	-	-	-
Greater Asia	Japan	-	-	-
Greater Europe	Africa/Middle East	-	-	-
Greater Europe	Europe Developed	-	-	-
Greater Europe	Europe Emerging	-	-	-
Greater Europe	United Kingdom	-	-	-

Dividend History

Date	Amount	Unadjusted Amount	Currency	Declaration Date	Record Date	Payment Date	Period
2024-12-31	$0.028	$0.000	None	-	-	-	-
2024-11-29	$0.026	$0.026	USD	-	-	-	-
2024-10-31	$0.027	$0.027	USD	-	2024-10-31	2024-11-01	Monthly
2024-09-30	$0.026	$0.026	USD	-	2024-09-30	2024-10-01	Monthly
2024-08-30	$0.026	$0.026	USD	-	2024-08-30	2024-09-03	Monthly
2024-07-31	$0.027	$0.027	USD	-	2024-07-31	2024-08-01	Monthly
2024-06-28	$0.026	$0.026	USD	-	2024-06-28	2024-07-01	Monthly
2024-05-31	$0.026	$0.026	USD	-	2024-05-31	2024-06-03	Monthly
2024-04-30	$0.026	$0.026	USD	-	2024-04-30	2024-05-01	Monthly
2024-03-28	$0.027	$0.027	USD	-	2024-03-28	2024-04-01	Monthly
2024-03-01	$0.026	$0.026	USD	-	2024-02-29	2024-03-01	Monthly
2024-02-29	$0.026	$0.000	None	-	-	-	-
2024-02-01	$0.028	$0.028	USD	-	2024-01-30	2024-02-01	Monthly
2024-01-31	$0.028	$0.000	None	-	-	-	-
2023-12-29	$0.027	$0.000	None	-	-	-	-
2023-12-28	$0.027	$0.027	USD	-	2023-12-28	2023-12-29	Monthly
2023-11-30	$0.026	$0.026	USD	-	2023-11-30	2023-12-01	Monthly
2023-10-31	$0.027	$0.027	USD	-	2023-10-31	2023-11-01	Monthly
2023-09-29	$0.026	$0.026	USD	-	2023-09-29	2023-10-02	Monthly
2023-08-31	$0.028	$0.028	USD	-	2023-08-31	2023-09-01	Monthly
2023-07-31	$0.028	$0.028	USD	-	2023-07-31	2023-08-01	Monthly
2023-06-30	$0.027	$0.027	USD	-	2023-06-30	2023-07-03	Monthly
2023-05-31	$0.027	$0.027	USD	-	2023-05-31	2023-06-01	Monthly
2023-04-28	$0.025	$0.025	USD	-	2023-04-28	2023-05-01	Monthly
2023-03-31	$0.026	$0.026	USD	-	2023-03-31	2023-04-03	Monthly
2023-02-28	$0.023	$0.023	USD	-	2023-02-28	2023-03-01	Monthly
2023-01-31	$0.027	$0.027	USD	-	2023-01-31	2023-02-01	Monthly
2022-12-30	$0.027	$0.027	USD	-	2022-12-30	2022-12-30	Monthly
2022-11-30	$0.025	$0.025	USD	-	2022-11-30	2022-12-01	Monthly
2022-10-31	$0.025	$0.025	USD	-	2022-10-31	2022-11-01	Monthly
2022-09-30	$0.023	$0.023	USD	-	2022-09-30	2022-10-03	Monthly
2022-08-31	$0.025	$0.025	USD	-	2022-08-31	2022-09-01	Monthly
2022-07-29	$0.024	$0.024	USD	-	2022-07-29	2022-08-01	Monthly
2022-06-30	$0.024	$0.024	USD	-	2022-06-30	2022-07-01	Monthly
2022-05-31	$0.026	$0.026	USD	-	2022-05-31	2022-06-01	Monthly
2022-04-29	$0.023	$0.023	USD	-	2022-04-29	2022-05-02	Monthly
2022-03-31	$0.024	$0.024	USD	-	2022-03-31	2022-04-01	Monthly
2022-02-28	$0.020	$0.020	USD	-	2022-02-28	2022-03-01	Monthly
2022-01-31	$0.020	$0.020	USD	-	2022-01-31	2022-02-01	Monthly
2021-12-31	$0.020	$0.020	USD	-	2021-12-31	2021-12-31	Monthly
2021-11-30	$0.020	$0.020	USD	-	2021-11-30	2021-12-01	Monthly
2021-10-29	$0.021	$0.021	USD	-	2021-10-29	2021-11-01	Monthly
2021-09-30	$0.021	$0.021	USD	-	2021-09-30	2021-10-01	Monthly
2021-08-31	$0.021	$0.021	USD	-	2021-08-31	2021-09-01	Monthly
2021-07-30	$0.022	$0.022	USD	-	2021-07-30	2021-08-02	Monthly
2021-06-30	$0.021	$0.021	USD	-	2021-06-30	2021-07-01	Monthly
2021-05-28	$0.022	$0.022	USD	-	2021-05-28	2021-06-01	Monthly
2021-04-30	$0.022	$0.022	USD	-	2021-04-30	2021-05-03	Monthly
2021-03-31	$0.023	$0.023	USD	-	2021-03-31	2021-04-01	Monthly
2021-02-26	$0.020	$0.020	USD	-	2021-02-26	2021-03-01	Monthly
2021-01-29	$0.023	$0.023	USD	-	2021-01-29	2021-02-01	Monthly
2020-12-31	$0.025	$0.025	USD	-	2020-12-31	2020-12-31	Monthly
2020-11-30	$0.024	$0.024	USD	-	2020-11-30	2020-12-01	Monthly
2020-10-30	$0.025	$0.025	USD	-	2020-10-30	2020-11-02	Monthly
2020-09-30	$0.025	$0.025	USD	-	2020-09-30	2020-10-01	Monthly
2020-08-31	$0.026	$0.026	USD	-	2020-08-31	2020-09-01	Monthly
2020-07-31	$0.027	$0.027	USD	-	2020-07-31	2020-08-03	Monthly
2020-06-30	$0.025	$0.025	USD	-	2020-06-30	2020-07-01	Monthly
2020-05-29	$0.026	$0.026	USD	-	2020-05-29	2020-06-01	Monthly
2020-04-30	$0.025	$0.025	USD	-	2020-04-30	2020-05-01	Monthly
2020-03-31	$0.027	$0.027	USD	-	2020-03-31	2020-04-01	Monthly
2020-02-28	$0.023	$0.023	USD	-	2020-02-28	2020-03-02	Monthly
2020-01-31	$0.025	$0.025	USD	-	2020-01-31	2020-02-03	Monthly
2019-12-31	$0.026	$0.026	USD	-	2019-12-31	2019-12-31	Monthly
2019-11-29	$0.025	$0.025	USD	-	2019-11-29	2019-12-02	Monthly
2019-10-31	$0.026	$0.026	USD	-	2019-10-31	2019-11-01	Monthly
2019-09-30	$0.025	$0.025	USD	-	2019-09-30	2019-10-01	Monthly
2019-08-30	$0.026	$0.026	USD	-	2019-08-30	2019-09-03	Monthly
2019-07-31	$0.027	$0.027	USD	-	2019-07-31	2019-08-01	Monthly
2019-06-28	$0.025	$0.025	USD	-	2019-06-28	2019-07-01	Monthly
2019-05-31	$0.027	$0.027	USD	2019-06-03	2019-05-31	2019-06-03	Monthly
2019-04-30	$0.026	$0.026	USD	2019-05-01	2019-04-30	2019-05-01	Monthly
2019-03-29	$0.029	$0.029	USD	2019-04-01	2019-03-29	2019-04-01	Monthly
2019-02-28	$0.025	$0.025	USD	2019-03-01	2019-02-28	2019-03-01	Monthly
2019-01-31	$0.027	$0.027	USD	2019-02-01	2019-01-31	2019-02-01	Monthly
2018-12-31	$0.028	$0.028	USD	2019-01-02	2018-12-31	2018-12-31	Monthly
2018-11-30	$0.027	$0.027	USD	2018-12-04	2018-11-30	2018-12-03	Monthly
2018-10-31	$0.027	$0.027	USD	2018-11-02	2018-10-31	2018-11-01	Monthly
2018-09-28	$0.028	$0.028	USD	-	-	-	-
2018-08-31	$0.029	$0.029	USD	2018-09-05	2018-08-31	2018-09-04	Monthly
2018-07-31	$0.030	$0.030	USD	2018-08-02	2018-07-31	2018-08-01	Monthly
2018-06-29	$0.029	$0.029	USD	2018-07-03	2018-06-29	2018-07-02	Monthly
2018-05-31	$0.030	$0.030	USD	2018-06-02	2018-05-31	2018-06-01	Monthly
2018-04-30	$0.028	$0.028	USD	2018-05-02	2018-04-30	2018-05-01	Monthly
2018-03-29	$0.029	$0.029	USD	2018-04-03	2018-03-29	2018-04-02	Monthly
2018-02-28	$0.025	$0.025	USD	2018-03-02	2018-02-28	2018-03-01	Monthly
2018-01-31	$0.029	$0.029	USD	2018-02-03	2018-01-31	2018-02-01	Monthly
2017-12-29	$0.030	$0.030	USD	2018-01-03	2017-12-29	2017-12-29	Monthly
2017-11-30	$0.029	$0.029	USD	2017-12-04	2017-11-30	2017-12-01	Monthly
2017-10-31	$0.030	$0.030	USD	2017-11-02	2017-10-31	2017-11-01	Monthly
2017-09-29	$0.029	$0.029	USD	2017-10-03	2017-09-29	2017-10-02	Monthly
2017-08-31	$0.031	$0.031	USD	2017-09-04	2017-08-31	2017-09-01	Monthly
2017-07-31	$0.030	$0.030	USD	2017-09-20	2017-07-31	2017-08-01	Monthly
2017-06-30	$0.031	$0.031	USD	-	-	-	-
2017-05-31	$0.029	$0.029	USD	-	-	-	-
2017-04-28	$0.029	$0.029	USD	-	-	-	-
2017-03-31	$0.031	$0.031	USD	-	-	-	-
2017-02-28	$0.028	$0.028	USD	-	-	-	-
2017-01-31	$0.032	$0.032	USD	-	-	-	-
2016-12-30	$0.031	$0.031	USD	-	-	-	-
2016-11-30	$0.030	$0.030	USD	-	-	-	-
2016-10-31	$0.031	$0.031	USD	-	-	-	-
2016-09-30	$0.029	$0.029	USD	-	-	-	-
2016-08-31	$0.029	$0.029	USD	-	-	-	-
2016-07-29	$0.028	$0.028	USD	-	-	-	-
2016-06-30	$0.028	$0.028	USD	-	-	-	-
2016-05-31	$0.028	$0.028	USD	-	-	-	-
2016-04-29	$0.027	$0.027	USD	-	-	-	-
2016-03-31	$0.029	$0.029	USD	-	-	-	-
2016-02-29	$0.027	$0.027	USD	-	-	-	-
2016-01-29	$0.028	$0.028	USD	-	-	-	-
2015-12-31	$0.030	$0.030	USD	-	-	-	-
2015-11-30	$0.029	$0.029	USD	-	-	-	-
2015-10-30	$0.029	$0.029	USD	-	-	-	-
2015-09-30	$0.028	$0.028	USD	-	-	-	-
2015-08-31	$0.030	$0.030	USD	-	-	-	-
2015-07-31	$0.030	$0.030	USD	-	-	-	-
2015-06-30	$0.028	$0.028	USD	-	-	-	-
2015-05-29	$0.029	$0.029	USD	-	-	-	-
2015-04-30	$0.030	$0.030	USD	-	-	-	-
2015-03-31	$0.031	$0.031	USD	-	-	-	-
2015-02-27	$0.028	$0.028	USD	-	-	-	-
2015-01-30	$0.031	$0.031	USD	-	-	-	-
2014-12-31	$0.030	$0.030	USD	-	-	-	-
2014-11-28	$0.029	$0.029	USD	-	-	-	-
2014-10-31	$0.029	$0.029	USD	-	-	-	-
2014-09-30	$0.029	$0.029	USD	-	-	-	-
2014-08-29	$0.029	$0.029	USD	-	-	-	-
2014-07-31	$0.030	$0.030	USD	-	-	-	-
2014-06-30	$0.030	$0.030	USD	-	-	-	-
2014-05-30	$0.033	$0.033	USD	-	-	-	-
2014-04-30	$0.030	$0.030	USD	-	-	-	-
2014-03-31	$0.032	$0.032	USD	-	-	-	-
2014-02-28	$0.029	$0.029	USD	-	-	-	-
2014-01-31	$0.033	$0.033	USD	-	-	-	-
2013-12-31	$0.034	$0.034	USD	-	-	-	-
2013-11-29	$0.032	$0.032	USD	-	-	-	-
2013-10-31	$0.034	$0.034	USD	-	-	-	-
2013-09-30	$0.033	$0.033	USD	-	-	-	-
2013-08-30	$0.036	$0.036	USD	-	-	-	-
2013-07-31	$0.035	$0.035	USD	-	-	-	-
2013-06-28	$0.032	$0.032	USD	-	-	-	-
2013-05-31	$0.031	$0.031	USD	-	-	-	-
2013-04-30	$0.030	$0.030	USD	-	-	-	-
2013-03-28	$0.032	$0.032	USD	-	-	-	-
2013-02-28	$0.029	$0.029	USD	-	-	-	-
2013-01-31	$0.033	$0.033	USD	-	-	-	-
2012-12-31	$0.033	$0.033	USD	-	-	-	-
2012-11-30	$0.032	$0.032	USD	-	-	-	-
2012-10-31	$0.033	$0.033	USD	-	-	-	-
2012-09-28	$0.031	$0.031	USD	-	-	-	-
2012-08-31	$0.031	$0.031	USD	-	-	-	-
2012-07-31	$0.030	$0.030	USD	-	-	-	-
2012-06-29	$0.030	$0.030	USD	-	-	-	-
2012-05-31	$0.031	$0.031	USD	-	-	-	-
2012-04-30	$0.032	$0.032	USD	-	-	-	-
2012-03-30	$0.033	$0.033	USD	-	-	-	-
2012-02-29	$0.030	$0.030	USD	-	-	-	-
2012-01-31	$0.032	$0.032	USD	-	-	-	-
2011-12-30	$0.033	$0.033	USD	-	-	-	-
2011-11-30	$0.032	$0.032	USD	-	-	-	-
2011-10-31	$0.032	$0.032	USD	-	-	-	-
2011-09-30	$0.032	$0.032	USD	-	-	-	-
2011-08-31	$0.034	$0.034	USD	-	-	-	-

MFS Municipal High Income Fund Class I NMFQS:MMIIX