MFS Maryland Municipal Bond Fund Class I (MMDIX)

Fund Assets	152.71M
Expense Ratio	0.588%
Min. Investment	$1,000
Turnover	9.00%
Dividend (ttm)	0.32
Dividend Yield	3.73%
Dividend Growth	3.46%
Payout Frequency	Monthly
Ex-Dividend Date	Sep 30, 2026

Previous Close	8.45
YTD Return	-3.19%
1-Year Return	-2.25%
5-Year Return	-1.40%
52-Week Low	8.32
52-Week High	9.18
Beta (5Y)	0.07
Holdings	240
Inception Date	Apr 1, 2016

About MMDIX

MFS Maryland Municipal Bond Fund Class I is a mutual fund designed to provide investors with a total return focus, emphasizing income that is generally exempt from both federal and Maryland state personal income taxes. The fund primarily invests in a diversified portfolio of municipal bonds issued by the state of Maryland and its various local entities, supporting infrastructure, development projects, and public works across the state. The strategy emphasizes investment in high-quality, investment-grade debt instruments while maintaining the flexibility to allocate a smaller portion to below-investment-grade securities to enhance yield and portfolio diversification. The fund uses sector and security selection as well as yield curve positioning to manage risk and generate returns. Notably, the fund aims to deliver 'double tax-free' income for Maryland residents, making it particularly attractive for those seeking to minimize their tax burden from interest income. With a longstanding history since 1984, this fund plays a significant role in the fixed income market for investors seeking tax-advantaged municipal bond exposure specific to Maryland.

• Fund Family: MFS
• Category: MD Municipal Debt
• Performance Rating: High
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: MMDIX
• Share Class: I
• Index: Bloomberg Municipal Bond TR

Performance

MMDIX had a total return of -2.25% in the past year, including dividends. Since the fund's inception, the average annual return has been 1.77%.

Equivalent Funds

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

Symbol	Provider	Name	Expense Ratio
SMDMX	Fidelity	Fidelity Maryland Municipal Income Fund	0.55%

Other Share Classes

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

Symbol	Share Class	Expense Ratio
MPMDX	R6	0.56%
MFSMX	A	0.86%
MBMDX	B	1.61%

Dividend History

Ex-Dividend	Amount	Pay Date
Sep 30, 2026	$0.02702	Oct 1, 2026
Aug 31, 2026	$0.02771	Sep 1, 2026
Jul 31, 2026	$0.02775	Aug 3, 2026
Jun 30, 2026	$0.02649	Jul 1, 2026
May 29, 2026	$0.02703	Jun 1, 2026
Apr 30, 2026	$0.02618	May 1, 2026

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Oct 16, 2026

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