Returns Chart

Key Stats

Net Expense Ratio Total Assets Under Management Weighted Average Dividend Yield Turnover Ratio (Generic)
0.60% 156.70M -- 9.00%
1 Year Fund Level Flows 1 Year Total Returns (Daily) Annualized Total Returns Since Inception (Daily) Max Drawdown (Since Inception)
20.58M 5.63% Upgrade Upgrade

Basic Info

Investment Strategy
The Fund seeks to provide current income exempt from federal and state personal income taxes. Not more than 1/3 of total assets may be invested in tax-exempt securities which are rated lower than the 3 highest grades recognized rating agencies or comparable non-rated securities.
General
Security Type Mutual Fund
Equity Style --
Broad Asset Class Municipal Bond
Broad Category Fixed Income
Global Peer Group Bond USD Municipal
Peer Group Maryland Municipal Debt Funds
Global Macro Bond HC
US Macro Single State Municipal Debt Funds
YCharts Categorization --
YCharts Benchmark --
Prospectus Objective Maryland Municipal Debt Funds
Fund Owner Firm Name MFS
Broad Asset Class Benchmark Index
^BBMBTR 100.0%

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Net Fund Flows Versus Peer Group

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1M
3M
6M
YTD
1Y
3Y
5Y
10Y
 
80.00B
60.00B
40.00B
20.00B
0
-20.00B
1 Month
% Rank: 50
-7.090M Peer Group Low
11.99M Peer Group High
1 Year
% Rank: 24
20.58M
-38.10M Peer Group Low
25.93M Peer Group High
3 Months
% Rank: 40
-9.997M Peer Group Low
27.66M Peer Group High
3 Years
% Rank: 14
-38.39M Peer Group Low
13.80M Peer Group High
6 Months
% Rank: 24
-16.85M Peer Group Low
28.88M Peer Group High
5 Years
% Rank: 14
-218.81M Peer Group Low
39.30M Peer Group High
YTD
% Rank: --
-- Peer Group Low
-- Peer Group High
10 Years
% Rank: 29
-238.90M Peer Group Low
59.29M Peer Group High
Date Unavailable

Performance Versus Peer Group

 
20%
15%
10%
5%
0
Name
1M
3M
YTD
1Y
3Y
5Y
10Y
15Y
Total Return (NAV)
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
Peer Group Rtn. (NAV)
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
% Rank in Peer Group (NAV)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
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Annual Total Returns Versus Peers

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Name
2019
2020
2021
2022
2023
2024
2025
YTD
6.69%
4.27%
2.78%
-9.73%
6.80%
2.18%
3.77%
0.57%
7.54%
5.21%
1.52%
-8.53%
6.40%
1.05%
4.25%
0.85%
7.02%
4.56%
2.54%
-10.75%
7.00%
2.30%
3.59%
0.55%
6.31%
4.46%
2.48%
-9.17%
5.97%
1.83%
3.84%
0.25%
7.06%
4.02%
3.17%
-9.58%
6.74%
2.89%
3.74%
0.62%
6.94%
4.44%
4.39%
-11.76%
7.09%
3.47%
2.77%
0.53%
As of January 15, 2026.

Fundamentals

General
Distribution Yield --
Dividend Yield TTM (1-14-26) 3.42%
30-Day SEC Yield (11-30-25) 3.49%
7-Day SEC Yield --
Number of Holdings 227
Bond
Yield to Maturity (11-30-25) 3.83%
Effective Duration 7.52
Average Coupon 4.60%
Calculated Average Quality 2.479
Effective Maturity 13.39
Nominal Maturity 19.09
Number of Bond Holdings 226
As of November 30, 2025

Asset Allocation

As of November 30, 2025.
Type % Net
Cash 3.37%
Stock 0.00%
Bond 96.63%
Convertible 0.00%
Preferred 0.00%
Other 0.00%
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Fees & Availability

Fees
Actual 12B-1 Fee --
Actual Management Fee 0.29%
Administration Fee 8.66K%
Maximum Front Load --
Maximum Deferred Load --
Maximum Redemption Fee --
General Availability
Available for Insurance Product No
Available for RRSP No
Purchase Details
Open to New Investors Yes
Minimum Initial Investment 0.00 None
Minimum Subsequent Investment 0.00 None

Basic Info

Investment Strategy
The Fund seeks to provide current income exempt from federal and state personal income taxes. Not more than 1/3 of total assets may be invested in tax-exempt securities which are rated lower than the 3 highest grades recognized rating agencies or comparable non-rated securities.
General
Security Type Mutual Fund
Equity Style --
Broad Asset Class Municipal Bond
Broad Category Fixed Income
Global Peer Group Bond USD Municipal
Peer Group Maryland Municipal Debt Funds
Global Macro Bond HC
US Macro Single State Municipal Debt Funds
YCharts Categorization --
YCharts Benchmark --
Prospectus Objective Maryland Municipal Debt Funds
Fund Owner Firm Name MFS
Broad Asset Class Benchmark Index
^BBMBTR 100.0%

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Fundamentals

General
Distribution Yield --
Dividend Yield TTM (1-14-26) 3.42%
30-Day SEC Yield (11-30-25) 3.49%
7-Day SEC Yield --
Number of Holdings 227
Bond
Yield to Maturity (11-30-25) 3.83%
Effective Duration 7.52
Average Coupon 4.60%
Calculated Average Quality 2.479
Effective Maturity 13.39
Nominal Maturity 19.09
Number of Bond Holdings 226
As of November 30, 2025

Fund Details

Key Dates
Inception Date 4/1/2016
Share Classes
MBMDX B
MFSMX A
MPMDX Retirement
Attributes
Inverse Fund No
Leveraged Fund --
Currency Hedged Fund --
Socially Responsible Fund No

Top Portfolio Holders

Name % Weight
Portfolio A 5.00%
Portfolio B 3.50%
Portfolio C 2.25%
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Excel Add-In Codes

Name: =YCI("M:MMDIX", "name")
Broad Asset Class: =YCI("M:MMDIX", "broad_asset_class")
Broad Category: =YCI("M:MMDIX", "broad_category_group")
Prospectus Objective: =YCI("M:MMDIX", "prospectus_objective")
To find the codes for any of our securities and financial metrics, see our Complete Excel Reference.
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