MFS Massachusetts Municipal Bond Fund

Fund Profile

Fund profile

Tickers

MFSSX, MBMAX, MTALX, MPMAX

Fund manager

MFS Municipal Income R6

Total assets

$387.30 mm

Liabilities

$1.75 mm

Net assets

$385.56 mm

Number of holdings

270.00

Top 200 of 270 Holdings

As of Dec 2024

Security	$Holding	Balance	% of Fund	Category	Position	Country
MFS Institutional Money Market Portfolio, Class A	10.63 mm	10.63 mm shares	2.76	Short-term investment vehicle	Long	USA
Massachusetts Bay Transportation Authority, Series 2000A SUB A-1	6.44 mm	6.44 mm principal	1.67		Long	USA
Massachusetts Development Finance Agency, Series 2015	4.58 mm	4.58 mm principal	1.19	Debt	Long	USA
Massachusetts Bay Transportation Authority Sales Tax, Series 2024 A	4.40 mm	4.00 mm principal	1.14	Debt	Long	USA
Commonwealth of Massachusetts Transportation Fund, Series 2024A	4.29 mm	4.00 mm principal	1.11	Debt	Long	USA
Massachusetts School Building Authority	4.18 mm	4.00 mm principal	1.09	Debt	Long	USA
Massachusetts Housing Finance Agency	3.99 mm	3.78 mm principal	1.03	Debt	Long	USA
Massachusetts Development Finance Agency	3.87 mm	4.08 mm principal	1.00	Debt	Long	USA
Town of Tisbury	3.84 mm	5.00 mm principal	0.99	Debt	Long	USA
Puerto Rico Sales Tax Financing Corp. Sales Tax	3.79 mm	3.81 mm principal	0.98	Debt	Long	Puerto Rico
Massachusetts Port Authority	3.62 mm	3.46 mm principal	0.94	Debt	Long	USA
Massachusetts Health & Educational Facilities Authority	3.46 mm	3.50 mm principal	0.90	Debt	Long	USA
Massachusetts Educational Financing Authority	3.36 mm	4.00 mm principal	0.87	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2024 T	3.25 mm	3.00 mm principal	0.84	Debt	Long	USA
Commonwealth of Massachusetts Transportation Fund, Series 2023B	3.22 mm	3.00 mm principal	0.83	Debt	Long	USA
Massachusetts Development Finance Agency	3.22 mm	3.02 mm principal	0.83	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2024D	3.20 mm	3.00 mm principal	0.83	Debt	Long	USA
Massachusetts Development Finance Agency	3.16 mm	3.12 mm principal	0.82	Debt	Long	USA
Massachusetts Port Authority	3.14 mm	3.06 mm principal	0.81	Debt	Long	USA
Commonwealth of Massachusetts, Series 2024 E	3.13 mm	2.93 mm principal	0.81	Debt	Long	USA
Commonwealth of Massachusetts	3.10 mm	3.00 mm principal	0.80	Debt	Long	USA
Commonwealth of Massachusetts Transportation Fund Revenue	3.09 mm	3.00 mm principal	0.80	Debt	Long	USA
Massachusetts Port Authority	3.07 mm	3.00 mm principal	0.80	Debt	Long	USA
Massachusetts Housing Finance Agency	3.07 mm	3.00 mm principal	0.80	Debt	Long	USA
Massachusetts Port Authority	3.04 mm	3.00 mm principal	0.79	Debt	Long	USA
City of Holyoke	3.02 mm	3.00 mm principal	0.78	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 2013B	2.99 mm	3.00 mm principal	0.78	Debt	Long	USA
City of Lowell, Series 2023	2.97 mm	3.00 mm principal	0.77	Debt	Long	USA
Massachusetts Housing Finance Agency	2.96 mm	3.00 mm principal	0.77	Debt	Long	USA
Energy Southeast A Cooperative District	2.93 mm	2.72 mm principal	0.76	Debt	Long	USA
Massachusetts Development Finance Agency	2.92 mm	2.86 mm principal	0.76	Debt	Long	USA
Commonwealth of Massachusetts Transportation Fund Revenue	2.91 mm	2.85 mm principal	0.76	Debt	Long	USA
Massachusetts Educational Financing Authority	2.91 mm	3.00 mm principal	0.75	Debt	Long	USA
City of New Bedford	2.91 mm	3.00 mm principal	0.75	Debt	Long	USA
Massachusetts Development Finance Agency	2.85 mm	2.85 mm principal	0.74	Debt	Long	USA
Massachusetts Port Authority	2.85 mm	2.76 mm principal	0.74	Debt	Long	USA
Massachusetts Development Finance Agency	2.83 mm	2.67 mm principal	0.73	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 234	2.77 mm	2.75 mm principal	0.72	Debt	Long	USA
Massachusetts Development Finance Agency	2.67 mm	3.06 mm principal	0.69	Debt	Long	USA
Massachusetts Development Finance Agency	2.65 mm	2.55 mm principal	0.69	Debt	Long	USA
California Health Facilities Financing Authority	2.56 mm	2.40 mm principal	0.66	Debt	Long	USA
Massachusetts Educational Financing Authority	2.54 mm	3.00 mm principal	0.66	Debt	Long	USA
City of Quincy	2.52 mm	2.50 mm principal	0.65	Debt	Long	USA
University of Massachusetts Building Authority	2.52 mm	2.50 mm principal	0.65	Debt	Long	USA
Commonwealth of Massachusetts	2.41 mm	2.23 mm principal	0.62	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2024 T	2.41 mm	2.50 mm principal	0.62	Debt	Long	USA
Massachusetts Development Finance Agency	2.39 mm	3.00 mm principal	0.62	Debt	Long	USA
California Community Choice Financing Authority	2.39 mm	2.25 mm principal	0.62	Debt	Long	USA
Massachusetts Clean Water Trust (The)	2.35 mm	2.00 mm principal	0.61	Debt	Long	USA
City of Lawrence	2.33 mm	3.00 mm principal	0.60	Debt	Long	USA
Massachusetts Development Finance Agency	2.30 mm	2.30 mm principal	0.60	Debt	Long	USA
Massachusetts Development Finance Agency	2.30 mm	2.30 mm principal	0.60	Debt	Long	USA
Commonwealth of Massachusetts, Series 2023A	2.26 mm	2.13 mm principal	0.59	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2024 A	2.22 mm	2.00 mm principal	0.58	Debt	Long	USA
Southeast Energy Authority A Cooperative District	2.17 mm	2.07 mm principal	0.56	Debt	Long	USA
Massachusetts Development Finance Agency	2.17 mm	2.00 mm principal	0.56	Debt	Long	USA
Connecticut State Health & Educational Facilities Authority	2.16 mm	2.83 mm principal	0.56	Debt	Long	USA
Massachusetts Health & Educational Facilities Authority	2.16 mm	2.20 mm principal	0.56	Debt	Long	USA
Commonwealth of Massachusetts, Series 2024B	2.16 mm	2.00 mm principal	0.56	Debt	Long	USA
Puerto Rico Sales Tax Financing Corp. Sales Tax	2.14 mm	2.18 mm principal	0.56	Debt	Long	Puerto Rico
Massachusetts Development Finance Agency	2.12 mm	2.00 mm principal	0.55	Debt	Long	USA
Tennessee Energy Acquisition Corp.	2.08 mm	2.02 mm principal	0.54	Debt	Long	USA
Massachusetts Port Authority	2.08 mm	2.00 mm principal	0.54	Debt	Long	USA
Massachusetts Port Authority	2.06 mm	2.00 mm principal	0.53	Debt	Long	USA
New York State Dormitory Authority	2.05 mm	2.12 mm principal	0.53	Debt	Long	USA
Massachusetts Bay Transportation Authority Sales Tax Revenue	2.04 mm	1.85 mm principal	0.53	Debt	Long	USA
Massachusetts Development Finance Agency	2.03 mm	2.00 mm principal	0.53	Debt	Long	USA
Massachusetts Development Finance Agency	2.02 mm	2.00 mm principal	0.52	Debt	Long	USA
Massachusetts Development Finance Agency	2.01 mm	2.00 mm principal	0.52	Debt	Long	USA
Massachusetts Development Finance Agency	2.01 mm	2.00 mm principal	0.52	Debt	Long	USA
Massachusetts Development Finance Agency	2.00 mm	2.00 mm principal	0.52	Debt	Long	USA
Massachusetts Development Finance Agency	2.00 mm	2.00 mm principal	0.52	Debt	Long	USA
Massachusetts Development Finance Agency	1.99 mm	2.00 mm principal	0.52	Debt	Long	USA
Massachusetts Educational Financing Authority	1.99 mm	2.25 mm principal	0.52	Debt	Long	USA
Massachusetts Development Finance Agency	1.99 mm	2.00 mm principal	0.52	Debt	Long	USA
Commonwealth of Massachusetts, Series 2015 B	1.96 mm	2.00 mm principal	0.51	Debt	Long	USA
Massachusetts Development Finance Agency	1.95 mm	2.00 mm principal	0.50	Debt	Long	USA
Massachusetts Housing Finance Agency	1.92 mm	1.91 mm principal	0.50	Debt	Long	USA
Massachusetts Housing Finance Agency	1.90 mm	2.03 mm principal	0.49	Debt	Long	USA
Massachusetts Development Finance Agency	1.87 mm	1.85 mm principal	0.48	Debt	Long	USA
Harris County Cultural Education Facilities Finance Corp.	1.86 mm	1.96 mm principal	0.48	Debt	Long	USA
Massachusetts Health & Educational Facilities Authority	1.85 mm	1.74 mm principal	0.48	Debt	Long	USA
Massachusetts Development Finance Agency	1.83 mm	1.81 mm principal	0.48	Debt	Long	USA
Massachusetts Development Finance Agency	1.83 mm	2.08 mm principal	0.47	Debt	Long	USA
Massachusetts Educational Financing Authority	1.81 mm	2.11 mm principal	0.47	Debt	Long	USA
Massachusetts Educational Financing Authority, Series 2024 B	1.78 mm	1.80 mm principal	0.46	Debt	Long	USA
New York Transportation Development Corp., Series 2024	1.75 mm	1.68 mm principal	0.45	Debt	Long	USA
Chicago Board of Education Dedicated Capital Improvement Tax, Series 2016	1.73 mm	1.67 mm principal	0.45	Debt	Long	USA
Massachusetts Development Finance Agency	1.72 mm	1.69 mm principal	0.45	Debt	Long	USA
City of Brockton	1.67 mm	1.74 mm principal	0.43	Debt	Long	USA
City of Lawrence	1.65 mm	1.67 mm principal	0.43	Debt	Long	USA
Tennessee Energy Acquisition Corp.	1.63 mm	1.61 mm principal	0.42	Debt	Long	USA
Massachusetts Housing Finance Agency	1.63 mm	2.00 mm principal	0.42	Debt	Long	USA
Massachusetts Development Finance Agency	1.58 mm	1.83 mm principal	0.41	Debt	Long	USA
Massachusetts Development Finance Agency	1.57 mm	1.50 mm principal	0.41	Debt	Long	USA
Massachusetts Educational Financing Authority, Series 2024C	1.54 mm	1.45 mm principal	0.40	Debt	Long	USA
Pennsylvania Economic Development Financing Authority	1.53 mm	1.50 mm principal	0.40	Debt	Long	USA
Massachusetts Development Finance Agency	1.52 mm	1.50 mm principal	0.40	Debt	Long	USA
Massachusetts Port Authority	1.51 mm	1.50 mm principal	0.39	Debt	Long	USA
Massachusetts Development Finance Agency	1.51 mm	1.50 mm principal	0.39	Debt	Long	USA
Massachusetts Development Finance Agency	1.49 mm	1.50 mm principal	0.39	Debt	Long	USA
Massachusetts Educational Financing Authority	1.46 mm	1.40 mm principal	0.38	Debt	Long	USA
Massachusetts Housing Finance Agency	1.44 mm	1.87 mm principal	0.37	Debt	Long	USA
Massachusetts Housing Finance Agency	1.43 mm	1.43 mm principal	0.37	Debt	Long	USA
Massachusetts Development Finance Agency	1.42 mm	1.40 mm principal	0.37	Debt	Long	USA
Massachusetts Educational Financing Authority	1.38 mm	2.00 mm principal	0.36	Debt	Long	USA
Massachusetts Clean Water Trust (The)	1.36 mm	1.28 mm principal	0.35	Debt	Long	USA
Massachusetts Educational Financing Authority	1.36 mm	1.30 mm principal	0.35	Debt	Long	USA
Tennergy Corp.	1.36 mm	1.27 mm principal	0.35	Debt	Long	USA
New Jersey Higher Education Student Assistance Authority	1.31 mm	1.33 mm principal	0.34	Debt	Long	USA
Anaheim City School District	1.29 mm	1.29 mm principal	0.33	Debt	Long	USA
Patriots Energy Group Financing Agency, Series 2023 SUB B-1	1.28 mm	1.20 mm principal	0.33	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2024	1.28 mm	1.35 mm principal	0.33	Debt	Long	USA
Massachusetts Development Finance Agency	1.26 mm	1.25 mm principal	0.33	Debt	Long	USA
Massachusetts Development Finance Agency	1.25 mm	1.25 mm principal	0.33	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 234	1.24 mm	1.25 mm principal	0.32	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2023 F	1.23 mm	1.25 mm principal	0.32	Debt	Long	USA
City of Framingham	1.22 mm	1.13 mm principal	0.32	Debt	Long	USA
Massachusetts Port Authority	1.22 mm	1.18 mm principal	0.32	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2024A	1.20 mm	1.20 mm principal	0.31	Debt	Long	USA
Massachusetts Housing Finance Agency	1.19 mm	1.19 mm principal	0.31	Debt	Long	USA
City of Framingham	1.18 mm	1.10 mm principal	0.31	Debt	Long	USA
City of Lawrence	1.18 mm	1.13 mm principal	0.31	Debt	Long	USA
Massachusetts Development Finance Agency	1.15 mm	1.38 mm principal	0.30	Debt	Long	USA
Town of Nantucket	1.15 mm	1.13 mm principal	0.30	Debt	Long	USA
Town of Nantucket	1.12 mm	1.09 mm principal	0.29	Debt	Long	USA
Buckeye Tobacco Settlement Financing Authority	1.12 mm	1.29 mm principal	0.29	Debt	Long	USA
Massachusetts Development Finance Agency	1.12 mm	1.11 mm principal	0.29	Debt	Long	USA
Massachusetts Development Finance Agency	1.10 mm	1.39 mm principal	0.28	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2024A	1.09 mm	1.10 mm principal	0.28	Debt	Long	USA
New Hampshire Business Finance Authority	1.08 mm	1.09 mm principal	0.28	Debt	Long	USA
Massachusetts Health & Educational Facilities Authority	1.06 mm	1.00 mm principal	0.28	Debt	Long	USA
Massachusetts Transportation Trust Fund Metropolitan Highway System Revenue	1.06 mm	1.00 mm principal	0.28	Debt	Long	USA
Massachusetts Educational Financing Authority	1.06 mm	1.00 mm principal	0.27	Debt	Long	USA
Chicago Board of Education	1.06 mm	1.27 mm principal	0.27	Debt	Long	USA
Massachusetts Development Finance Agency	1.04 mm	1.00 mm principal	0.27	Debt	Long	USA
Massachusetts Development Finance Agency	1.04 mm	1.00 mm principal	0.27	Debt	Long	USA
Massachusetts Development Finance Agency	1.04 mm	1.00 mm principal	0.27	Debt	Long	USA
Massachusetts Development Finance Agency	1.04 mm	1.00 mm principal	0.27	Debt	Long	USA
Massachusetts Development Finance Agency	1.03 mm	1.00 mm principal	0.27	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2023 F	1.03 mm	950.00 k principal	0.27	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 2023 C1	1.03 mm	1.00 mm principal	0.27	Debt	Long	USA
Town of Nantucket	1.02 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 2023 C1	1.02 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.02 mm	1.01 mm principal	0.26	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 2023 C1	1.02 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.02 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.01 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.01 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 2024A-1	1.01 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.01 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.01 mm	950.00 k principal	0.26	Debt	Long	USA
Collegiate Charter School of Lowell	1.00 mm	1.00 mm principal	0.26	Debt	Long	USA
North Carolina Housing Finance Agency, Series M TEMS 2024	1.00 mm	995.67 k principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.00 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	1.00 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 2024A-1	1.00 mm	1.00 mm principal	0.26	Debt	Long	USA
Massachusetts Development Finance Agency	986.37 k	970.00 k principal	0.26	Debt	Long	USA
Collegiate Charter School of Lowell	986.32 k	1.00 mm principal	0.26	Debt	Long	USA
Golden State Tobacco Securitization Corp.	982.65 k	1.09 mm principal	0.25	Debt	Long	USA
Massachusetts Development Finance Agency	975.86 k	970.00 k principal	0.25	Debt	Long	USA
New York Liberty Development Corp.	950.54 k	950.00 k principal	0.25	Debt	Long	USA
Massachusetts Housing Finance Agency	941.24 k	1.00 mm principal	0.24	Debt	Long	USA
Massachusetts Development Finance Agency, Series 2023 F	928.61 k	850.00 k principal	0.24	Debt	Long	USA
Massachusetts Development Finance Agency	903.01 k	850.00 k principal	0.23	Debt	Long	USA
Massachusetts Development Finance Agency	882.93 k	835.00 k principal	0.23	Debt	Long	USA
City of Quincy	863.14 k	785.00 k principal	0.22	Debt	Long	USA
Massachusetts Development Finance Agency	851.98 k	850.00 k principal	0.22	Debt	Long	USA
Massachusetts Water Resources Authority	827.27 k	750.00 k principal	0.21	Debt	Long	USA
Massachusetts Housing Finance Agency	823.99 k	1.00 mm principal	0.21	Debt	Long	USA
City of Quincy	819.83 k	740.00 k principal	0.21	Debt	Long	USA
Massachusetts Development Finance Agency	815.16 k	1.00 mm principal	0.21	Debt	Long	USA
Puerto Rico Sales Tax Financing Corp. Sales Tax	813.97 k	1.06 mm principal	0.21	Debt	Long	Puerto Rico
Massachusetts Housing Finance Agency, Series 2024A-1	803.72 k	800.00 k principal	0.21	Debt	Long	USA
City of Pittsfield	790.94 k	790.00 k principal	0.21	Debt	Long	USA
Massachusetts Development Finance Agency	786.68 k	900.00 k principal	0.20	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 222	780.61 k	805.00 k principal	0.20	Debt	Long	USA
Chicago Board of Education Dedicated Capital Improvement Tax	762.16 k	710.00 k principal	0.20	Debt	Long	USA
City of Quincy	753.46 k	675.00 k principal	0.20	Debt	Long	USA
Town of Provincetown	743.08 k	755.00 k principal	0.19	Debt	Long	USA
Massachusetts Development Finance Agency	740.83 k	700.00 k principal	0.19	Debt	Long	USA
City of Pittsfield	730.28 k	730.00 k principal	0.19	Debt	Long	USA
Massachusetts Development Finance Agency	729.84 k	725.00 k principal	0.19	Debt	Long	USA
Puerto Rico Sales Tax Financing Corp. Sales Tax	711.86 k	1.01 mm principal	0.18	Debt	Long	Puerto Rico
City of Pittsfield	689.16 k	685.00 k principal	0.18	Debt	Long	USA
City of Quincy	679.22 k	620.00 k principal	0.18	Debt	Long	USA
Massachusetts Development Finance Agency	677.13 k	635.00 k principal	0.18	Debt	Long	USA
Massachusetts Water Resources Authority	659.44 k	595.00 k principal	0.17	Debt	Long	USA
City of Quincy	655.19 k	600.00 k principal	0.17	Debt	Long	USA
Village of Bridgeview	630.68 k	705.00 k principal	0.16	Debt	Long	USA
Massachusetts Development Finance Agency	626.18 k	625.00 k principal	0.16	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 237	615.80 k	630.00 k principal	0.16	Debt	Long	USA
State of Illinois	614.35 k	630.00 k principal	0.16	Debt	Long	USA
Puerto Rico Sales Tax Financing Corp. Sales Tax	588.82 k	597.00 k principal	0.15	Debt	Long	Puerto Rico
Massachusetts Housing Finance Agency, Series 231	585.22 k	560.00 k principal	0.15	Debt	Long	USA
Toll Road Investors Partnership II LP	576.95 k	581.00 k principal	0.15	Debt	Long	USA
Public Finance Authority	565.99 k	585.00 k principal	0.15	Debt	Long	USA
Massachusetts Development Finance Agency	532.66 k	525.00 k principal	0.14	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 230	527.81 k	525.00 k principal	0.14	Debt	Long	USA
Massachusetts Housing Finance Agency, Series 231	525.68 k	500.00 k principal	0.14	Debt	Long	USA