MFS Funds > MFS MUNICIPAL SERIES TRUST
MFS California Municipal Bond Fund
$523.68M
Avg Monthly Net Assets
$611.76M
Total Assets
$1.87M
Total Liabilities
$609.89M
Net Assets
MFS California Municipal Bond Fund is a Mutual Fund in MFS MUNICIPAL SERIES TRUST
from MFS Funds,
based in Massachusetts,
United States of America.
The fund has five share classes
and monthly net assets of $523.68M.
On August 26th, 2024 it reported 403 holdings, the largest
being Oakland Unified School District/Alameda County (1.3%), Port of Los Angeles (1.1%) and Orange County Transportation Authority (1.0%).
Data provided by Fincoded.
Share Classes
| Name | Class/Contract ID | Ticker | Monthly Returns (2 years) |
|---|---|---|---|
| Class A | C000006978 | MCFTX | |
| Class B | C000006979 | MBCAX | |
| Class C | C000006980 | MCCAX | |
| Class I | C000169767 | MCAVX | |
| Class R6 | C000194244 | MPOAX |
Holdings
From latest NPORT-P, filed August 26th, 2024 for period ending June 30th, 2024.
Historic holdings data available from Fincoded.
| Name | Profile | Category | Country | Value $USD | # Shares | % of Fund |
|---|---|---|---|---|---|---|
| Abag Finance Authority for Nonprofit Corps. | Long | Debt | US | $1M | – | 0.21 |
| Alameda Corridor Transportation Authority, Series C | Long | Debt | US | $3M | – | 0.48 |
| Alameda Unified School District-Alameda County, Series B | Long | Debt | US | $2M | – | 0.33 |
| Alvord Unified School District | Long | Debt | US | $990K | – | 0.16 |
| Beverly Hills Unified School District (Beverly Hills Unified School District CA) | Long | Debt | US | $4M | – | 0.60 |
| Black Belt Energy Gas District | Long | Debt | US | $3M | – | 0.47 |
| Black Belt Energy Gas District | Long | Debt | US | $1M | – | 0.20 |
| Buckeye Tobacco Settlement Financing Authority | Long | Debt | US | $1M | – | 0.21 |
| Burbank-Glendale-Pasadena Airport Authority Brick Campaign, Series 2024B | Long | Debt | US | $3M | – | 0.57 |
| Burbank-Glendale-Pasadena Airport Authority Brick Campaign, Series 2024B | Long | Debt | US | $3M | – | 0.49 |
| California Community Choice Financing Authority | Long | Debt | US | $5M | – | 0.86 |
| California Community Choice Financing Authority | Long | Debt | US | $5M | – | 0.86 |
| California Community Choice Financing Authority | Long | Debt | US | $4M | – | 0.66 |
| California Community Choice Financing Authority, Series 2023 F | Long | Debt | US | $3M | – | 0.54 |
| California Community College Financing Authority | Long | Debt | US | $2M | – | 0.38 |
| California Community Housing Agency | Long | Debt | US | $3M | – | 0.43 |
| California Community Housing Agency | Long | Debt | US | $2M | – | 0.36 |
| California Community Housing Agency | Long | Debt | US | $2M | – | 0.32 |
| California County Tobacco Securitization Agency | Long | Debt | US | $3M | – | 0.53 |
| California County Tobacco Securitization Agency | Long | Debt | US | $2M | – | 0.35 |
| California County Tobacco Securitization Agency | Long | Debt | US | $1M | – | 0.17 |
| California County Tobacco Securitization Agency | Long | Debt | US | $352K | – | 0.06 |
| California County Tobacco Securitization Agency | Long | Debt | US | $336K | – | 0.06 |
| California Educational Facilities Authority | Long | Debt | US | $2M | – | 0.35 |
| California Educational Facilities Authority | Long | Debt | US | $1M | – | 0.21 |
| California Educational Facilities Authority | Long | Debt | US | $1M | – | 0.17 |
| California Educational Facilities Authority | Long | Debt | US | $1M | – | 0.17 |
| California Educational Facilities Authority | Long | Debt | US | $1M | – | 0.17 |
| California Educational Facilities Authority | Long | Debt | US | $955K | – | 0.16 |
| California Educational Facilities Authority | Long | Debt | US | $665K | – | 0.11 |
| California Educational Facilities Authority | Long | Debt | US | $507K | – | 0.08 |
| California Educational Facilities Authority | Long | Debt | US | $440K | – | 0.07 |
| California Educational Facilities Authority, Series 2023 A | Long | Debt | US | $1M | – | 0.22 |
| California Enterprise Development Authority | Long | Debt | US | $835K | – | 0.14 |
| California Enterprise Development Authority | Long | Debt | US | $663K | – | 0.11 |
| California Enterprise Development Authority | Long | Debt | US | $613K | – | 0.10 |
| California Enterprise Development Authority | Long | Debt | US | $454K | – | 0.07 |
| California Enterprise Development Authority, Series 2024A | Long | Debt | US | $1M | – | 0.17 |
| California Enterprise Development Authority, Series 2024A | Long | Debt | US | $699K | – | 0.11 |
| California Health Facilities Financing Authority | Long | Debt | US | $5M | – | 0.88 |
| California Health Facilities Financing Authority | Long | Debt | US | $3M | – | 0.43 |
| California Health Facilities Financing Authority | Long | Debt | US | $1M | – | 0.17 |
| California Health Facilities Financing Authority | Long | Debt | US | $1M | – | 0.17 |
| California Health Facilities Financing Authority | Long | Debt | US | $1M | – | 0.17 |
| California Health Facilities Financing Authority | Long | Debt | US | $1M | – | 0.17 |
| California Health Facilities Financing Authority | Long | Debt | US | $1M | – | 0.17 |
| California Health Facilities Financing Authority | Long | Debt | US | $686K | – | 0.11 |
| California Health Facilities Financing Authority, Series 2024 B | Long | Debt | US | $2M | – | 0.34 |
| California Health Facilities Financing Authority, Series 2024 B | Long | Debt | US | $1M | – | 0.22 |
| California Health Facilities Financing Authority, Series 2024 B | Long | Debt | US | $1M | – | 0.18 |
| California Health Facilities Financing Authority, Series 2024 B | Long | Debt | US | $793K | – | 0.13 |
| California Health Facilities Financing Authority, Series 2024A | Long | Debt | US | $2M | – | 0.29 |
| California Housing Finance Agency | Long | Debt | US | $2M | – | 0.34 |
| California Housing Finance Agency, Class A | Long | Debt | US | $3M | – | 0.46 |
| California Housing Finance Agency, Series 2023 A-1 | Long | Debt | US | $803K | – | 0.13 |
| California Housing Finance Agency, Series 2023 V | Long | Debt | US | $1M | – | 0.23 |
| California Housing Finance Agency, Series 2024 T | Long | Debt | US | $5M | – | 0.82 |
| California Housing Finance Agency, Series LTD OBLIG 2024 J | Long | Debt | US | $3M | – | 0.49 |
| California Housing Finance Agency, Series LTD OBLIG BDS 2024 Q | Long | Debt | US | $1M | – | 0.16 |
| California Infrastructure & Economic Development Bank | Long | Debt | US | $3M | – | 0.48 |
| California Infrastructure & Economic Development Bank | Long | Debt | US | $950K | – | 0.16 |
| California Infrastructure & Economic Development Bank | Long | Debt | US | $469K | – | 0.08 |
| California Infrastructure & Economic Development Bank, Series 2020A | Long | Debt | US | $5M | – | 0.82 |
| California Infrastructure & Economic Development Bank, Series 2024A | Long | Debt | US | $2M | – | 0.26 |
| California Infrastructure & Economic Development Bank, Series 2024A | Long | Debt | US | $2M | – | 0.26 |
| California Infrastructure & Economic Development Bank, Series 2024A | Long | Debt | US | $981K | – | 0.16 |
| California Municipal Finance Authority | Long | Debt | US | $4M | – | 0.72 |
| California Municipal Finance Authority | Long | Debt | US | $4M | – | 0.70 |
| California Municipal Finance Authority | Long | Debt | US | $4M | – | 0.62 |
| California Municipal Finance Authority | Long | Debt | US | $3M | – | 0.49 |
| California Municipal Finance Authority | Long | Debt | US | $3M | – | 0.49 |
| California Municipal Finance Authority | Long | Debt | US | $3M | – | 0.49 |
| California Municipal Finance Authority | Long | Debt | US | $3M | – | 0.47 |
| California Municipal Finance Authority | Long | Debt | US | $3M | – | 0.45 |
| California Municipal Finance Authority | Long | Debt | US | $2M | – | 0.36 |
| California Municipal Finance Authority | Long | Debt | US | $2M | – | 0.35 |
| California Municipal Finance Authority | Long | Debt | US | $2M | – | 0.33 |
| California Municipal Finance Authority | Long | Debt | US | $2M | – | 0.25 |
| California Municipal Finance Authority | Long | Debt | US | $1M | – | 0.24 |
| California Municipal Finance Authority | Long | Debt | US | $1M | – | 0.24 |
| California Municipal Finance Authority | Long | Debt | US | $1M | – | 0.21 |
| California Municipal Finance Authority | Long | Debt | US | $1M | – | 0.20 |
| California Municipal Finance Authority | Long | Debt | US | $1M | – | 0.17 |
| California Municipal Finance Authority | Long | Debt | US | $1M | – | 0.16 |
| California Municipal Finance Authority | Long | Debt | US | $987K | – | 0.16 |
| California Municipal Finance Authority | Long | Debt | US | $867K | – | 0.14 |
| California Municipal Finance Authority | Long | Debt | US | $750K | – | 0.12 |
| California Municipal Finance Authority | Long | Debt | US | $727K | – | 0.12 |
| California Municipal Finance Authority | Long | Debt | US | $648K | – | 0.11 |
| California Municipal Finance Authority | Long | Debt | US | $457K | – | 0.07 |
| California Municipal Finance Authority | Long | Debt | US | $430K | – | 0.07 |
| California Municipal Finance Authority | Long | Debt | US | $385K | – | 0.06 |
| California Municipal Finance Authority | Long | Debt | US | $227K | – | 0.04 |
| California Municipal Finance Authority | Long | Debt | US | $205K | – | 0.03 |
| California Municipal Finance Authority | Long | Debt | US | $178K | – | 0.03 |
| California Municipal Finance Authority | Long | Debt | US | $165K | – | 0.03 |
| California Municipal Finance Authority | Long | Debt | US | $85K | – | 0.01 |
| California Municipal Finance Authority, Series 2020B | Long | Debt | US | $4M | – | 0.66 |
| California Municipal Finance Authority, Series 2023B | Long | Debt | US | $2M | – | 0.33 |
| California Municipal Finance Authority, Series 2023B | Long | Debt | US | $667K | – | 0.11 |
| California Municipal Finance Authority, Series 2024A | Long | Debt | US | $4M | – | 0.67 |
| California Municipal Finance Authority, Series 2024A | Long | Debt | US | $4M | – | 0.66 |
| California Municipal Finance Authority, Series 2024A | Long | Debt | US | $2M | – | 0.41 |
| California Municipal Finance Authority, Series 2024A | Long | Debt | US | $446K | – | 0.07 |
| California Municipal Finance Authority, Series 2024A | Long | Debt | US | $402K | – | 0.07 |
| California Municipal Finance Authority, Series 2024A | Long | Debt | US | $358K | – | 0.06 |
| California Municipal Finance Authority, Series M TEBS 2023 A | Long | Debt | US | $4M | – | 0.58 |
| California Pollution Control Financing Authority | Long | Debt | US | $2M | – | 0.27 |
| California Pollution Control Financing Authority | Long | Debt | US | $1M | – | 0.17 |
| California Pollution Control Financing Authority, Series 2010B | Long | Debt | US | $2M | – | 0.33 |
| California Public Finance Authority | Long | Debt | US | $3M | – | 0.42 |
| California Public Finance Authority | Long | Debt | US | $2M | – | 0.32 |
| California Public Finance Authority | Long | Debt | US | $1M | – | 0.19 |
| California Public Finance Authority | Long | Debt | US | $775K | – | 0.13 |
| California School Finance Authority | Long | Debt | US | $2M | – | 0.35 |
| California School Finance Authority | Long | Debt | US | $1M | – | 0.21 |
| California School Finance Authority | Long | Debt | US | $1M | – | 0.19 |
| California School Finance Authority | Long | Debt | US | $1M | – | 0.17 |
| California School Finance Authority | Long | Debt | US | $1M | – | 0.16 |
| California School Finance Authority | Long | Debt | US | $987K | – | 0.16 |
| California School Finance Authority | Long | Debt | US | $925K | – | 0.15 |
| California School Finance Authority | Long | Debt | US | $892K | – | 0.15 |
| California School Finance Authority | Long | Debt | US | $874K | – | 0.14 |
| California School Finance Authority | Long | Debt | US | $754K | – | 0.12 |
| California School Finance Authority | Long | Debt | US | $620K | – | 0.10 |
| California School Finance Authority | Long | Debt | US | $583K | – | 0.10 |
| California School Finance Authority | Long | Debt | US | $551K | – | 0.09 |
| California School Finance Authority | Long | Debt | US | $535K | – | 0.09 |
| California School Finance Authority | Long | Debt | US | $531K | – | 0.09 |
| California School Finance Authority | Long | Debt | US | $526K | – | 0.09 |
| California School Finance Authority | Long | Debt | US | $520K | – | 0.09 |
| California School Finance Authority | Long | Debt | US | $470K | – | 0.08 |
| California School Finance Authority | Long | Debt | US | $452K | – | 0.07 |
| California School Finance Authority | Long | Debt | US | $418K | – | 0.07 |
| California School Finance Authority | Long | Debt | US | $416K | – | 0.07 |
| California School Finance Authority | Long | Debt | US | $51K | – | 0.01 |
| California State University | Long | Debt | US | $2M | – | 0.25 |
| California Statewide Communities Development Authority | Long | Debt | US | $5M | – | 0.89 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.34 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.32 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.32 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.31 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.30 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.29 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.27 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.26 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.26 |
| California Statewide Communities Development Authority | Long | Debt | US | $2M | – | 0.25 |
| California Statewide Communities Development Authority | Long | Debt | US | $1M | – | 0.24 |
| California Statewide Communities Development Authority | Long | Debt | US | $1M | – | 0.23 |
| California Statewide Communities Development Authority | Long | Debt | US | $1M | – | 0.22 |
| California Statewide Communities Development Authority | Long | Debt | US | $1M | – | 0.21 |
| California Statewide Communities Development Authority | Long | Debt | US | $1M | – | 0.17 |
| California Statewide Communities Development Authority | Long | Debt | US | $1M | – | 0.17 |
| California Statewide Communities Development Authority | Long | Debt | US | $1M | – | 0.17 |
| California Statewide Communities Development Authority | Long | Debt | US | $975K | – | 0.16 |
| California Statewide Communities Development Authority | Long | Debt | US | $964K | – | 0.16 |
| California Statewide Communities Development Authority | Long | Debt | US | $718K | – | 0.12 |
| California Statewide Communities Development Authority | Long | Debt | US | $653K | – | 0.11 |
| California Statewide Communities Development Authority | Long | Debt | US | $635K | – | 0.10 |
| California Statewide Communities Development Authority | Long | Debt | US | $512K | – | 0.08 |
| California Statewide Communities Development Authority | Long | Debt | US | $508K | – | 0.08 |
| California Statewide Communities Development Authority | Long | Debt | US | $500K | – | 0.08 |
| California Statewide Communities Development Authority | Long | Debt | US | $496K | – | 0.08 |
| California Statewide Communities Development Authority | Long | Debt | US | $484K | – | 0.08 |
| California Statewide Communities Development Authority | Long | Debt | US | $467K | – | 0.08 |
| California Statewide Communities Development Authority | Long | Debt | US | $439K | – | 0.07 |
| California Statewide Communities Development Authority | Long | Debt | US | $438K | – | 0.07 |
| California Statewide Communities Development Authority | Long | Debt | US | $436K | – | 0.07 |
| California Statewide Communities Development Authority | Long | Debt | US | $432K | – | 0.07 |
| California Statewide Communities Development Authority | Long | Debt | US | $431K | – | 0.07 |
| California Statewide Communities Development Authority | Long | Debt | US | $390K | – | 0.06 |
| California Statewide Communities Development Authority | Long | Debt | US | $201K | – | 0.03 |
| California Statewide Communities Development Authority, Series 2006D | Long | Debt | US | $5M | – | 0.87 |
| Cambria Community Services District Wastewater (Cambria Community Services District Wastewater Revenue) | Long | Debt | US | $1M | – | 0.19 |
| Cambria Community Services District Wastewater (Cambria Community Services District Wastewater Revenue) | Long | Debt | US | $1M | – | 0.17 |
| Ceres Unified School District | Long | Debt | US | $1M | – | 0.17 |
| Ceres Unified School District | Long | Debt | US | $996K | – | 0.16 |
| Chicago Board of Education Dedicated Capital Improvement Tax | Long | Debt | US | $818K | – | 0.13 |
| Chicago Board of Education Dedicated Capital Improvement Tax | Long | Debt | US | $361K | – | 0.06 |
| Chicago Board of Education Dedicated Capital Improvement Tax, Series 2016 | Long | Debt | US | $2M | – | 0.38 |
| City & County of San Francisco (City & County of San Francisco CA Special Tax District No. 2020-1) | Long | Debt | US | $1M | – | 0.22 |
| City & County of San Francisco (City & County of San Francisco CA Special Tax District No. 2020-1) | Long | Debt | US | $99K | – | 0.02 |
| City of Carlsbad, Series 2003 A (City of Carlsbad CA) | Long | Debt | US | $2M | – | 0.28 |
| City of Chicago (City of Chicago IL) | Long | Debt | US | $814K | – | 0.13 |
| City of Dallas, Series 2023 (City of Dallas TX) | Long | Debt | US | $519K | – | 0.09 |
| City of Fresno (City of Fresno CA Airport Revenue) | Long | Debt | US | $1M | – | 0.17 |
| City of Fresno (City of Fresno CA Airport Revenue) | Long | Debt | US | $988K | – | 0.16 |
| City of Long Beach (City of Long Beach CA Airport System Revenue) | Long | Debt | US | $2M | – | 0.26 |
| City of Long Beach (City of Long Beach CA Airport System Revenue) | Long | Debt | US | $1M | – | 0.17 |
| City of Long Beach CA Marina System Revenue | Long | Debt | US | $1M | – | 0.22 |
| City of Los Angeles Department of Airports | Long | Debt | US | $5M | – | 0.77 |
| City of Los Angeles Department of Airports | Long | Debt | US | $3M | – | 0.47 |
| City of Los Angeles Department of Airports | Long | Debt | US | $2M | – | 0.36 |
| City of Los Angeles Department of Airports | Long | Debt | US | $2M | – | 0.33 |
| City of Los Angeles Department of Airports | Long | Debt | US | $1M | – | 0.23 |
| City of Los Angeles Department of Airports | Long | Debt | US | $1M | – | 0.22 |
| City of Los Angeles Department of Airports | Long | Debt | US | $495K | – | 0.08 |
| City of Newport Beach, Series 2023 A (City of Newport Beach CA) | Long | Debt | US | $688K | – | 0.11 |
| City of Newport Beach, Series 2023 A (City of Newport Beach CA) | Long | Debt | US | $576K | – | 0.09 |
| City of Oakland, Series 2023 D (City of Oakland CA) | Long | Debt | US | $6M | – | 0.93 |
| City of Rancho Cucamonga CA Community Facilities District | Long | Debt | US | $1M | – | 0.16 |
| City of San Jose, Series 2023 F2 (City of San Jose CA) | Long | Debt | US | $2M | – | 0.34 |
| City of Tulare CA Sewer Revenue | Long | Debt | US | $848K | – | 0.14 |
| City of Upland (City of Upland CA) | Long | Debt | US | $1M | – | 0.17 |
| City of Upland (City of Upland CA) | Long | Debt | US | $907K | – | 0.15 |
| City of Vernon (City of Vernon CA Electric System Revenue) | Long | Debt | US | $448K | – | 0.07 |
| City of Victorville (City of Victorville CA Electric Revenue) | Long | Debt | US | $810K | – | 0.13 |
| City of Victorville (City of Victorville CA Electric Revenue) | Long | Debt | US | $657K | – | 0.11 |
| City of Victorville (City of Victorville CA Electric Revenue) | Long | Debt | US | $560K | – | 0.09 |
| Clovis Unified School District, Series C | Long | Debt | US | $5M | – | 0.81 |
| CMFA Special Finance Agency | Long | Debt | US | $3M | – | 0.44 |
| CMFA Special Finance Agency VIII | Long | Debt | US | $3M | – | 0.42 |
| CMFA Special Finance Agency XII | Long | Debt | US | $2M | – | 0.25 |
| College of the Sequoias Tulare Area Improvement District No. 3 | Long | Debt | US | $160K | – | 0.03 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $693K | – | 0.11 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $596K | – | 0.10 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $553K | – | 0.09 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $377K | – | 0.06 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $256K | – | 0.04 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $220K | – | 0.04 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $215K | – | 0.04 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $189K | – | 0.03 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $163K | – | 0.03 |
| Commonwealth of Puerto Rico | Long | Debt | PR | $36K | – | 0.01 |
| Conejo Valley Unified School District, Series E | Long | Debt | US | $3M | – | 0.41 |
| County of Sacramento CA Airport System Revenue | Long | Debt | US | $2M | – | 0.34 |
| County of Sacramento CA Airport System Revenue | Long | Debt | US | $1M | – | 0.17 |
| County of Sacramento, Series BDS 2024 A (County of Sacramento CA) | Long | Debt | US | $2M | – | 0.41 |
| County of Santa Barbara (County of Santa Barbara CA) | Long | Debt | US | $2M | – | 0.34 |
| CSCDA Community Improvement Authority | Long | Debt | US | $2M | – | 0.25 |
| Davis Joint Unified School District | Long | Debt | US | $1M | – | 0.17 |
| Department of Veterans Affairs Veteran's Farm & Home Purchase Program | Long | Debt | US | $972K | – | 0.16 |
| Doylestown Hospital Authority, Series 2019A | Long | Debt | US | $63K | – | 0.01 |
| Doylestown Hospital Authority, Series 2019A | Long | Debt | US | $5K | – | 0.00 |
| East Bay Municipal Utility District Wastewater System, Series 2024A (East Bay Municipal Utility District Wastewater System Revenue) | Long | Debt | US | $1M | – | 0.18 |
| East Bay Municipal Utility District Wastewater System, Series 2024A (East Bay Municipal Utility District Wastewater System Revenue) | Long | Debt | US | $1M | – | 0.18 |
| East Bay Municipal Utility District Water System, Series 2024 A (East Bay Municipal Utility District Water System Revenue) | Long | Debt | US | $2M | – | 0.36 |
| El Monte Union High School District, Series F | Long | Debt | US | $659K | – | 0.11 |
| El Monte Union High School District, Series F | Long | Debt | US | $467K | – | 0.08 |
| El Monte Union High School District, Series F | Long | Debt | US | $348K | – | 0.06 |
| Fresno Joint Powers Financing Authority | Long | Debt | US | $835K | – | 0.14 |
| Garden Grove Public Financing Authority, Series 2024A | Long | Debt | US | $4M | – | 0.64 |
| Garden Grove Unified School District | Long | Debt | US | $3M | – | 0.49 |
| Garvey School District | Long | Debt | US | $2M | – | 0.27 |
| Golden State Tobacco Securitization Corp. | Long | Debt | US | $4M | – | 0.68 |
| Golden State Tobacco Securitization Corp. | Long | Debt | US | $1M | – | 0.20 |
| Guam Government Waterworks Authority | Long | Debt | GU | $740K | – | 0.12 |
| Guam Power Authority | Long | Debt | GU | $315K | – | 0.05 |
| Guam Power Authority | Long | Debt | GU | $281K | – | 0.05 |
| Hastings Campus Housing Finance Authority | Long | Debt | US | $3M | – | 0.48 |
| Hastings Campus Housing Finance Authority | Long | Debt | US | $2M | – | 0.25 |
| Huntington Beach Community Facilities District | Long | Debt | US | $1M | – | 0.16 |
| Imperial Community College District | Long | Debt | US | $333K | – | 0.05 |
| Indio Finance Authority | Long | Debt | US | $4M | – | 0.68 |
| Irvine Facilities Financing Authority | Long | Debt | US | $4M | – | 0.65 |
| La Mesa-Spring Valley School District, Series 2023 B | Long | Debt | US | $2M | – | 0.33 |
| Lake Elsinore Public Financing Authority | Long | Debt | US | $929K | – | 0.15 |
| Lake Tahoe Unified School District | Long | Debt | US | $1M | – | 0.22 |
| Lee Lake Public Financing Authority | Long | Debt | US | $1M | – | 0.16 |
| Los Angeles County Development Authority | Long | Debt | US | $4M | – | 0.58 |
| Los Angeles County Development Authority | Long | Debt | US | $3M | – | 0.45 |
| Los Angeles Housing Authority, Series 2024A | Long | Debt | US | $5M | – | 0.86 |
| Los Angeles Unified School District, Series 2016 A | Long | Debt | US | $845K | – | 0.14 |
| Los Angeles Unified School District, Series C | Long | Debt | US | $2M | – | 0.32 |
| Lucia Mar Unified School District | Long | Debt | US | $2M | – | 0.36 |
| M-S-R Energy Authority | Long | Debt | US | $2M | – | 0.35 |
| Matching Fund Special Purpose Securitization Corp. | Long | Debt | VI | $209K | – | 0.03 |
| Mendocino-Lake Community College District | Long | Debt | US | $1M | – | 0.19 |
| MFS Institutional Money Market Portfolio, Class A | Long | Short-term investment vehicle | US | $553K | 553K | 0.09 |
| Minnesota Office of Higher Education | Long | Debt | US | $237K | – | 0.04 |
| Modesto Elementary School District | Long | Debt | US | $139K | – | 0.02 |
| Modesto Elementary School District | Long | Debt | US | $84K | – | 0.01 |
| Modesto High School District, Series A | Long | Debt | US | $1M | – | 0.16 |
| Moorpark Unified School District | Long | Debt | US | $357K | – | 0.06 |
| Moreland School District | Long | Debt | US | $1M | – | 0.21 |
| Mount Diablo Unified School District (Mount Diablo Unified School District CA) | Long | Debt | US | $3M | – | 0.50 |
| Mount San Antonio Community College District | Long | Debt | US | $5M | – | 0.80 |
| Mount San Antonio Community College District | Long | Debt | US | $857K | – | 0.14 |
| Mountain View-Whisman School District | Long | Debt | US | $6M | – | 0.97 |
| Napa Valley Unified School District | Long | Debt | US | $3M | – | 0.47 |
| New Hampshire Business Finance Authority | Long | Debt | US | $1M | – | 0.22 |
| New Jersey Transportation Trust Fund Authority | Long | Debt | US | $530K | – | 0.09 |
| New York Transportation Development Corp., Series 2024 | Long | Debt | US | $3M | – | 0.49 |
| Norman Y Mineta San Jose International Airport SJC | Long | Debt | US | $2M | – | 0.33 |
| Norman Y Mineta San Jose International Airport SJC | Long | Debt | US | $1M | – | 0.17 |
| North Carolina Housing Finance Agency, Series M TEMS 2024 | Long | Debt | US | $3M | – | 0.50 |
| North Lake Tahoe Public Financing Authority | Long | Debt | US | $5M | – | 0.80 |
| Oakland Unified School District, Series 2023A (Oakland Unified School District/Alameda County) | Long | Debt | US | $8M | – | 1.28 |
| Ontario Public Financing Authority | Long | Debt | US | $1M | – | 0.16 |
| Ontario Public Financing Authority | Long | Debt | US | $788K | – | 0.13 |
| Ontario Public Financing Authority | Long | Debt | US | $566K | – | 0.09 |
| Ontario Public Financing Authority | Long | Debt | US | $342K | – | 0.06 |
| Orange County Transportation Authority | Long | Debt | US | $6M | – | 1.04 |
| Oxnard Financing Authority | Long | Debt | US | $415K | – | 0.07 |
| Pajaro Valley Water Management Agency | Long | Debt | US | $4M | – | 0.58 |
| Pajaro Valley Water Management Agency | Long | Debt | US | $1M | – | 0.24 |
| Palm Springs Unified School District, Series B | Long | Debt | US | $3M | – | 0.48 |
| Palomar Health | Long | Debt | US | $2M | – | 0.34 |
| Paramount Unified School District | Long | Debt | US | $1M | – | 0.23 |
| Patriots Energy Group Financing Agency, Series 2023 SUB B-1 | Long | Debt | US | $2M | – | 0.34 |
| Pittsburg Successor Agency Redevelopment Agency | Long | Debt | US | $1M | – | 0.22 |
| Pittsburg Successor Agency Redevelopment Agency | Long | Debt | US | $651K | – | 0.11 |
| Pomona Unified School District | Long | Debt | US | $71K | – | 0.01 |
| Port of Beaumont Navigation District | Long | Debt | US | $453K | – | 0.07 |
| Port of Los Angeles, Series 2019 A | Long | Debt | US | $7M | – | 1.12 |
| Public Finance Authority | Long | Debt | US | $749K | – | 0.12 |
| Public Finance Authority | Long | Debt | US | $433K | – | 0.07 |
| Public Finance Authority | Long | Debt | US | $304K | – | 0.05 |
| Public Finance Authority | Long | Debt | US | $97K | – | 0.02 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $602K | – | 0.10 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $383K | – | 0.06 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $311K | – | 0.05 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $238K | – | 0.04 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $228K | – | 0.04 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $178K | – | 0.03 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $163K | – | 0.03 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $145K | – | 0.02 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $140K | – | 0.02 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $118K | – | 0.02 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $100K | – | 0.02 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $90K | – | 0.01 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $58K | – | 0.01 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $50K | – | 0.01 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $25K | – | 0.00 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $25K | – | 0.00 |
| Puerto Rico Electric Power Authority | Long | Debt | PR | $20K | – | 0.00 |
| Puerto Rico Electric Power Authority, Series VV | Long | Debt | PR | $54K | – | 0.01 |
| Puerto Rico Electric Power Authority, Series WW | Long | Debt | PR | $48K | – | 0.01 |
| Puerto Rico Electric Power Authority, Series WW | Long | Debt | PR | $23K | – | 0.00 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $5M | – | 0.87 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $3M | – | 0.46 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $1M | – | 0.19 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $1M | – | 0.17 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $931K | – | 0.15 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $380K | – | 0.06 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $376K | – | 0.06 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $114K | – | 0.02 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $26K | – | 0.00 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax (Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue) | Long | Debt | PR | $9K | – | 0.00 |
| Puerto Rico Sales Tax Financing Corp. Sales Tax | Long | Debt | PR | $6K | – | 0.00 |
| Rancho Cucamonga Redevelopment Agency Successor Agency | Long | Debt | US | $3M | – | 0.43 |
| Regents of the University of California Medical Center Pooled (Regents of the University of California Medical Center Pooled Revenue) | Long | Debt | US | $5M | – | 0.80 |
| River Islands Public Financing Authority | Long | Debt | US | $5M | – | 0.83 |
| River Islands Public Financing Authority | Long | Debt | US | $3M | – | 0.43 |
| River Islands Public Financing Authority | Long | Debt | US | $1M | – | 0.17 |
| Riverside County Redevelopment Successor Agency | Long | Debt | US | $1M | – | 0.23 |
| Riverside County Redevelopment Successor Agency | Long | Debt | US | $1M | – | 0.18 |
| Riverside County Redevelopment Successor Agency | Long | Debt | US | $908K | – | 0.15 |
| San Diego County Regional Airport Authority | Long | Debt | US | $673K | – | 0.11 |
| San Diego Housing Authority, Inc., Series 2003C | Long | Debt | US | $2M | – | 0.29 |
| San Diego Housing Authority, Inc., Series 2005 | Long | Debt | US | $234K | – | 0.04 |
| San Diego Unified School District (San Diego Unified School District CA) | Long | Debt | US | $2M | – | 0.35 |
| San Francisco City & County Airport Comm-San Francisco International Airport | Long | Debt | US | $3M | – | 0.44 |
| San Francisco City & County Airport Comm-San Francisco International Airport | Long | Debt | US | $2M | – | 0.26 |
| San Francisco City & County Airport Comm-San Francisco International Airport, Series 2022 A | Long | Debt | US | $2M | – | 0.38 |
| San Francisco City & County Airport Comm-San Francisco International Airport, Series 2023 C | Long | Debt | US | $6M | – | 0.92 |
| San Francisco City & County Airport Comm-San Francisco International Airport, Series 2024 A | Long | Debt | US | $1M | – | 0.18 |
| San Francisco City & County Public Utilities Commission Power, Series 2023 A (San Francisco City & County Public Utilities Commission Power Revenue) | Long | Debt | US | $4M | – | 0.63 |
| San Francisco City & County Redevelopment Agency Successor Agency | Long | Debt | US | $750K | – | 0.12 |
| San Francisco City & County Redevelopment Agency Successor Agency, Series 2023 | Long | Debt | US | $2M | – | 0.28 |
| San Francisco City & County Redevelopment Agency Successor Agency, Series 2023 | Long | Debt | US | $1M | – | 0.23 |
| San Francisco City & County Redevelopment Agency Successor Agency, Series 2023 | Long | Debt | US | $1M | – | 0.18 |
| San Joaquin Area Flood Control Agy Levee Construction & Maintenance Assmnt Dist, Series 2023A | Long | Debt | US | $992K | – | 0.16 |
| San Joaquin Area Flood Control Agy Levee Construction & Maintenance Assmnt Dist, Series 2023A | Long | Debt | US | $824K | – | 0.14 |
| San Luis Obispo Public Financing Authority, Series 2023 | Long | Debt | US | $6M | – | 0.90 |
| San Rafael City Elementary School District | Long | Debt | US | $3M | – | 0.42 |
| San Ysidro School District | Long | Debt | US | $2M | – | 0.30 |
| Santa Clara County Financing Authority | Long | Debt | US | $5M | – | 0.78 |
| Santa Maria Bonita School District | Long | Debt | US | $1M | – | 0.21 |
| Santa Maria Bonita School District | Long | Debt | US | $1M | – | 0.16 |
| Sierra Sands Unified School District | Long | Debt | US | $845K | – | 0.14 |
| Sierra View Local Health Care District (Sierra View Local Health Care District CA) | Long | Debt | US | $693K | – | 0.11 |
| Sierra View Local Health Care District (Sierra View Local Health Care District CA) | Long | Debt | US | $668K | – | 0.11 |
| Sierra View Local Health Care District (Sierra View Local Health Care District CA) | Long | Debt | US | $300K | – | 0.05 |
| Sierra View Local Health Care District (Sierra View Local Health Care District CA) | Long | Debt | US | $290K | – | 0.05 |
| Sierra View Local Health Care District (Sierra View Local Health Care District CA) | Long | Debt | US | $235K | – | 0.04 |
| South Monterey County Joint Union High School District | Long | Debt | US | $2M | – | 0.40 |
| Southeast Energy Authority A Cooperative District | Long | Debt | US | $3M | – | 0.44 |
| Southern California Public Power Authority | Long | Debt | US | $2M | – | 0.28 |
| State of California | Long | Debt | US | $3M | – | 0.55 |
| State of California | Long | Debt | US | $2M | – | 0.37 |
| State of Illinois | Long | Debt | US | $482K | – | 0.08 |
| State of Illinois | Long | Debt | US | $445K | – | 0.07 |
| Stockton Public Financing Authority | Long | Debt | US | $2M | – | 0.27 |
| Sweetwater Union High School District | Long | Debt | US | $2M | – | 0.33 |
| Tennergy Corp. | Long | Debt | US | $2M | – | 0.27 |
| Territory of Guam | Long | Debt | GU | $501K | – | 0.08 |
| Territory of Guam | Long | Debt | GU | $375K | – | 0.06 |
| Territory of Guam | Long | Debt | GU | $173K | – | 0.03 |
| Territory of Guam | Long | Debt | GU | $43K | – | 0.01 |
| Texas Water Development Board, Series 2023 A | Long | Debt | US | $2M | – | 0.27 |
| Toll Road Investors Partnership II LP | Long | Debt | US | $865K | – | 0.14 |
| Toll Road Investors Partnership II LP | Long | Debt | US | $515K | – | 0.08 |
| Transbay Joint Powers Authority | Long | Debt | US | $591K | – | 0.10 |
| Transbay Joint Powers Authority | Long | Debt | US | $313K | – | 0.05 |
| Truckee-Donner Public Utility District Electric System (Truckee-Donner Public Utility District Electric System Revenue) | Long | Debt | US | $1M | – | 0.22 |
| Truckee-Donner Public Utility District Water System (Truckee-Donner Public Utility District Water System Revenue) | Long | Debt | US | $2M | – | 0.38 |
| Village of Bridgeview (Village of Bridgeview IL) | Long | Debt | US | $969K | – | 0.16 |
| Virginia Housing Development Authority, Series 2023 F | Long | Debt | US | $2M | – | 0.34 |
| Washington Township Health Care District | Long | Debt | US | $1M | – | 0.17 |
| Washington Township Health Care District | Long | Debt | US | $340K | – | 0.06 |
| West Contra Costa Unified School District | Long | Debt | US | $3M | – | 0.46 |
Address
MFS MUNICIPAL SERIES TRUST
111 Huntington Avenue
Boston
Massachusetts
02199
United States of America
Websites
Directors
Clarence Otis, Jr.
James W. Kilman, Jr.
John A. Caroselli
John P. Kavanaugh
Laurie J. Thomsen
Maryanne L. Roepke
Maureen R. Goldfarb
Michael W. Roberge
Peter D. Jones
Steven E. Buller
Transfer Agents
MFS SERVICE CENTER, INC.
Pricing Services
ICE Data Pricing & Reference Data, LLC
LSEG
PricingDirect Inc.
S&P Global
Custodians
JPMorgan Chase Bank, National Association
Shareholder Servicing Agents
MFS Service Center, Inc.
Admins
MASSACHUSETTS FINANCIAL SERVICES
Brokers
N/A