MFS Maryland Municipal Bond Fund B (MBMDX)
10.07
+0.01
(+0.10%)
USD |
Jan 14 2026
Returns Chart
Key Stats
| Net Expense Ratio | Total Assets Under Management | Weighted Average Dividend Yield | Turnover Ratio (Generic) |
|---|---|---|---|
| 1.60% | 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 | 4.60% | 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% |
Net Fund Flows Versus Peer Group
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
Risk
Performance Versus Peer Group
Annual Total Returns Versus Peers
As of January 15, 2026.
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% |
Top 10 Holdings
| Name | % Weight | Price | % Change |
|---|---|---|---|
|
USD CASH
|
3.37% | -- | -- |
| MARYLAND ST ECONOMIC DEV CORP LEASE REV MD 5.000 07/01/2056 | 1.33% | -- | -- |
| MONTGOMERY CNTY MD MD 0.200 11/01/2037 | 1.23% | 100.00 | 0.00% |
| MARYLAND ST STAD AUTH REV MD 5.000 05/01/2035 | 1.17% | 104.67 | -0.00% |
| PUERTO RICO SALES TAX FING CORP SALES TAX REV PR 5.000 07/01/2058 | 1.17% | 97.46 | 0.47% |
| WASHINGTON D C MET AREA TRAN AUTH DEDICATED REV DC 5.000 07/15/2040 | 1.08% | 110.04 | -0.00% |
| PRINCE GEORGES CNTY MD MD 5.000 08/01/2045 | 1.07% | -- | -- |
| MARYLAND ST STAD AUTH BUILT LEARN REV MD 5.000 06/01/2046 | 1.05% | 105.77 | 0.00% |
| ANNE ARUNDEL CNTY MD MD 5.000 10/01/2053 | 1.04% | -- | -- |
| PRINCE GEORGES CNTY MD CTFS PARTN MD 5.000 10/01/2048 | 1.00% | -- | -- |
Fees & Availability
| Fees | |
| Actual 12B-1 Fee | 1.00% |
| Actual Management Fee | 0.29% |
| Administration Fee | 39.00% |
| Maximum Front Load | -- |
| Maximum Deferred Load | 4.00% |
| Maximum Redemption Fee | 0.00% |
| General Availability | |
| Available for Insurance Product | No |
| Available for RRSP | No |
| Purchase Details | |
| Open to New Investors | No |
| Minimum Initial Investment | 1000.00 None |
| Minimum Subsequent Investment | 50.00 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% |
Fundamentals
| General | |
| Distribution Yield | -- |
| Dividend Yield TTM (1-14-26) | 2.44% |
| 30-Day SEC Yield (11-30-25) | 2.50% |
| 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
Top Portfolio Holders
| Name | % Weight |
|---|---|
| Portfolio A | 5.00% |
| Portfolio B | 3.50% |
| Portfolio C | 2.25% |
Excel Add-In Codes
| Name: =YCI("M:MBMDX", "name") |
| Broad Asset Class: =YCI("M:MBMDX", "broad_asset_class") |
| Broad Category: =YCI("M:MBMDX", "broad_category_group") |
| Prospectus Objective: =YCI("M:MBMDX", "prospectus_objective") |
| To find the codes for any of our securities and financial metrics, see our Complete Excel Reference. |