MCNYX
MFS New York Municipal Bond Fund
MFS Municipal Series Trust

Portfolio moves

Net position changes between two of this fund's N-PORT snapshots. These are differences between point-in-time reports — not a trade log — and share counts can be affected by splits and other corporate actions.

Dec 31, 2025 → Mar 31, 2026

Expand a category to see the positions behind it, ranked by weight.

Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
NY ST THRUWAY AUTH-A 0 2,500,000 2,500,000 1.37% $2.54M
NY TRANSITIONAL FIN-B 0 2,110,000 2,110,000 1.19% $2.20M
STATE OF NEW YORK SALES TAX REVENUE 5.0% 03-15-55 0 2,000,000 2,000,000 1.11% $2.05M
NY NYCGEN 5 02/01/2046 0 1,000,000 1,000,000 0.57% $1.05M
NYC MUNI WTR FIN-BB 0 1,000,000 1,000,000 0.56% $1.04M
GENEVA DEV CORP REVENUE REGD B/E 5.00000000 0 1,000,000 1,000,000 0.54% $996.91K
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
New York State Dormitory Authority, Series 2024 1,500,000 0 -1,500,000 0.00% -$1.54M
PUERTO RICO ELECTRIC POWER AUTHORITY 5.0% 07-01-29 375,000 0 -375,000 0.00% -$250.31K
Puerto Rico Electric Power Authority, Series ZZ 180,000 0 -180,000 0.00% -$120.15K
City of New York 5,000 0 -5,000 0.00% -$5.01K

No positions in this category.

Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
ALBANY NY CAPITAL RESOURCE COR REGD B/E 5.25000000 5,000,000 4,500,000 -500,000 2.55% -$486.38K
MFS Institutional Money Market Portfolio, Class A 5,685,682 3,206,476 -2,479,206 1.74% -$2.48M
RIVERHEAD NY INDL DEV AGY MF H RIVMFH 02/41 FIXED 4.5 1,970,291 1,960,184 -10,107 1.06% -$25.87K
WESTCHESTER INDL DEV 1,970,000 1,960,000 -10,000 1.03% -$63.48K
State of New York Mortgage Agency Homeowner Mortgage, Series 266 1,000,000 985,000 -15,000 0.52% -$42.80K
NFA 2022-1 A 4.375% 09-20-36 632,864 630,444 -2,420 0.34% -$10.24K
Monroe County Industrial Development Corp., Series 2022 616,295 615,167 -1,128 0.34% -$18.66K
State of New York Mortgage Agency Homeowner Mortgage 345,000 335,000 -10,000 0.16% -$11.95K
TOLL ROAD INV PART II INSURED 144A 02/43 0.00000 549,663 466,443 -83,221 0.09% -$28.63K
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
WHITE PLAINS HOSPITAL OBLIGATED GROUP AG 5.5% 10-01-54 3,500,000 3,500,000 0 1.98% -$72.37K
Metropolitan Transportation Authority, Series B 3,100,000 3,100,000 0 1.70% $18.67K
NEW YORK CITY NY HSG 2,610,000 2,610,000 0 1.26% -$39.81K
PORT NY NJ 4% 7/15/55@ 2,485,000 2,485,000 0 1.15% -$51.81K
NEW YORK-D 2,000,000 2,000,000 0 1.14% -$12.25K
Yonkers Industrial Development Agency, New Community School Project 2,000,000 2,000,000 0 1.14% -$25.69K
Hempstead Town Local Development Corp., Series 2021 A 3,000,000 3,000,000 0 1.14% -$47.58K
NY ST TWY AUTH-P-REV 2,000,000 2,000,000 0 1.13% -$25.49K
NYC WTR 5.25% 6/15/53 2,000,000 2,000,000 0 1.13% -$22.85K
TRIBOROUGH NY BRIDGE TUNNEL TRBTRN 05/54 FIXED 5.25 2,000,000 2,000,000 0 1.13% -$17.86K
TRIBOROUGH NY BRIDGE & TUNNEL TRIBOROUGH BRIDGE & TUNNEL AUTHORITY 2,000,000 2,000,000 0 1.13% -$26.54K
BATTERY PK REV 5% 11/1/2053 2,000,000 2,000,000 0 1.11% -$30.09K
NY TRNSPRTN DEV CRP-A 2,000,000 2,000,000 0 1.09% -$16.36K
Albany County Capital Resource Corp., Series 2025 2,000,000 2,000,000 0 1.09% -$26.26K
Build NYC Resource Corp., Series 2022 2,000,000 2,000,000 0 1.08% $2.38K
Monroe County Industrial Development Corp., Series BDS 2023A 2,000,000 2,000,000 0 1.08% -$22.80K
NY TRANS CORP(JFK INT NEW ONE)/AGM 5.13% 6/30/60@ 2,000,000 2,000,000 0 1.07% -$23.70K
SAMARITAN MEDICAL CENTER OBLIGATED GROUP 5.0% 11-01-37 2,000,000 2,000,000 0 1.06% -$39.70K
Monroe County Industrial Development Corp., Series 2017 2,000,000 2,000,000 0 1.05% -$33.03K
NY NYCDEV 5 11/15/2044 1,940,000 1,940,000 0 1.05% $3.15K
Erie County Industrial Development Agency (The), Series BDS 2023 1,960,000 1,960,000 0 1.04% -$19.67K
TRIBOROUGH NY BRIDGE & TUNNEL AUTH PAYROLL MOBILITY TAX 2,000,000 2,000,000 0 1.01% $6.09K
NY TRANS CORP(JFK INT NEW ONE)/AGM 5.25% 6/30/60@ 1,810,000 1,810,000 0 0.98% -$16.69K
Build NYC Resource Corp., Urban Resource Institute Project, Series 2025A 1,750,000 1,750,000 0 0.98% -$25.74K
BROOK NY 4% 11/1/2045 2,000,000 2,000,000 0 0.98% $21.30K
MET TRANSPRTN AUTH NY REVENUE REGD OID B/E BAM 4.00000000 2,000,000 2,000,000 0 0.97% -$17.44K
NEW YORK ST DORM AUTH REVENUES REGD OID B/E 4.25000000 2,000,000 2,000,000 0 0.96% -$66.75K
NYC TRANSITIONAL FIN 1,800,000 1,800,000 0 0.92% $18.81K
NYC TRIPS AEROTERM IDA 12A AMT SF 5.0% 07-01-28 1,660,000 1,660,000 0 0.90% $738
NEW YORK N Y CITY HSG DEV CORP 1,730,000 1,730,000 0 0.89% -$54.67K
Westchester County Local Development Corp. (Westchester Medical Center Obligated Group), Series 2023, RB 1,500,000 1,500,000 0 0.86% -$29.83K
ROSWELL PARK CANCER INSTITUTE CORP OBLIGATED GROUP AG 5.5% 07-01-55 1,500,000 1,500,000 0 0.86% -$21.90K
NEW YORK CITY NY HSG 2,235,000 2,235,000 0 0.86% $6.24K
NY TRANSPRTN DEV -AMT 1,500,000 1,500,000 0 0.85% $2.38K
NY MTA TRANSP 4% 11/15/2052 1,830,000 1,830,000 0 0.84% -$53.24K
Genesee County, NY Funding Corporation Rev. (Rochester Regional Health Energy) A 1,500,000 1,500,000 0 0.82% -$24.67K
NY TRNSPRTN DEV CRP-A 1,500,000 1,500,000 0 0.82% -$8.32K
WESTCHESTER COUNTY LOCAL DEVEL WSTDEV 11/51 FIXED OID 5 1,500,000 1,500,000 0 0.81% -$23.59K
PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000 1,582,000 1,582,000 0 0.81% -$19.16K
NY NYCDEV 5.38 11/15/2040 1,500,000 1,500,000 0 0.81% -$8.00K
DUTCHESS NY LDC 4% 7/1/2041 1,605,000 1,605,000 0 0.81% -$44.61K
NY LIBERTY DEV CORP 2,000,000 2,000,000 0 0.80% -$35.16K
NEW YORK NY-B-1 1,825,000 1,825,000 0 0.78% -$2.22K
New York Transportation Development Corp., Series 2021 1,500,000 1,500,000 0 0.77% $3.26K
Buffalo Municipal Water Finance Authority, Series 2023A 1,500,000 1,500,000 0 0.77% -$19.48K
NEW YORK TRANSPRTN-A 1,500,000 1,500,000 0 0.76% -$50.25K
PROJECTNEW YORK TRANS 1,500,000 1,500,000 0 0.76% -$88
NEW YORK CITY NY HSG DEV CORP MF HSG REVENUE 1,500,000 1,500,000 0 0.72% -$97.40K
BLACK BELT ENERGY GAS VAR 1,265,000 1,265,000 0 0.72% -$8.52K
Public Authority for Colorado Energy, Series 2008, RB 1,085,000 1,085,000 0 0.70% -$26.70K
California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB 1,210,000 1,210,000 0 0.69% -$5.73K
NEW YORK ST DORM AUTH REVENUES NON ST SUPPORTED DEBT 1,500,000 1,500,000 0 0.69% $8.70K
NY MTA TRANSP 4% 11/15/2045 1,340,000 1,340,000 0 0.66% $2.12K
New York State Housing Finance Agency 1,200,000 1,200,000 0 0.65% -$9.63K
NYC HSG DEV CORP-F-1 1,535,000 1,535,000 0 0.60% -$52.77K
Great Neck North Water Authority 1,340,000 1,340,000 0 0.60% $2.71K
NY MTA TRANSP 5% 11/15/2033 1,000,000 1,000,000 0 0.59% -$6.98K
NY TRANS CORP 5.375% 8/1/2036 @ 1,035,000 1,035,000 0 0.58% -$12.02K
Westchester County Local Development Corp., Series 2024, RB 1,000,000 1,000,000 0 0.57% -$17.22K
NY TRANS FIN AUTH-C 1,000,000 1,000,000 0 0.57% -$1.20K
NY TRANSPRTN DEV CORP 1,000,000 1,000,000 0 0.56% $2.25K
Schenectady County Capital Resource Corp., Series A 1,000,000 1,000,000 0 0.56% -$18.09K
CALIFORNIA ST HLTH FACS FING AUTH REVENUE 1,000,000 1,000,000 0 0.56% -$7.72K
PACE UNIVERSITY 5.5% 05-01-56 1,000,000 1,000,000 0 0.55% -$5.53K
Build NYC Resource Corp., Series 2025, RB 1,000,000 1,000,000 0 0.55% -$12.08K
NYC HSG DEV CORP-D-RE 1,000,000 1,000,000 0 0.55% -$6.73K
NEW YORK ST DORM AUTH REVENUES NON ST SUPPORTED DEBT 1,000,000 1,000,000 0 0.55% -$19.21K
New York State Housing Finance Agency 1,000,000 1,000,000 0 0.55% -$9.46K
TSASC, Inc., Series A 1,000,000 1,000,000 0 0.55% -$2.36K
Buffalo & Erie County Industrial Land Development Corp. (Charter School for Applied Technology), Series 2017 A, Ref. RB 1,000,000 1,000,000 0 0.55% -$6.83K
NEW YORK CITY NY HSG DEV CORP MF HSG REVENUE 1,000,000 1,000,000 0 0.55% -$6.51K
BROOKHAVEN NY LOCAL DEV CORP REVENUE 1,000,000 1,000,000 0 0.55% -$4.26K
NY TRANS CORP 5% 8/1/2031 AMT 1,000,000 1,000,000 0 0.54% -$626
New York Transportation Development Corp. (LaGuardia Airport Terminal B Redevelopment), Series 2016, RB 1,000,000 1,000,000 0 0.54% $5
New York State Housing Finance Agency 1,000,000 1,000,000 0 0.54% -$7.58K
State of New York Mortgage Agency Homeowner Mortgage, Series 258 1,000,000 1,000,000 0 0.54% -$12.59K
State of New York Mortgage Agency Homeowner Mortgage, Series 258 1,000,000 1,000,000 0 0.53% -$8.08K
NY TRANS CORP 0% 12/31/2054 @ 1,500,000 1,500,000 0 0.53% -$374
State of New York, Series 264 1,000,000 1,000,000 0 0.52% -$29.00K
NEW YORK CITY NY HSG DEV CORP MF HSG REV 1,000,000 1,000,000 0 0.52% -$29.32K
Build NYC Resource Corp. (Success Academy Charter Schools), Series 2024, RB 1,000,000 1,000,000 0 0.50% -$10.31K
Tompkins County Development Corp., Series A 915,000 915,000 0 0.50% $67
NY TRANS CORP 5% 7/1/34 @ 900,000 900,000 0 0.49% $74
NEW YORK ST DORM AUTH REVENUES NYSHGR 07/50 FIXED OID 4.25 1,000,000 1,000,000 0 0.49% -$1.39K
NY TRANSN DEV 4% 10/31/2046 @ 1,000,000 1,000,000 0 0.48% $4.90K
New York (State of) Dormitory Authority (Bid Group 5), Series 2020 A, Ref. RB 1,225,000 1,225,000 0 0.48% -$16.92K
Monroe County Industrial Development Corp. (St. John Fisher College), Series 2024, Ref. RB 850,000 850,000 0 0.47% -$15.14K
Nassau County Local Economic Assistance Corp., Series A 1,000,000 1,000,000 0 0.44% -$151.61K
ONEIDA COUNTY LOCAL DEVELOPMENT CORP 750,000 750,000 0 0.44% -$20.35K
YONKERS NY 750,000 750,000 0 0.43% -$8.39K
PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 942,000 942,000 0 0.42% $9.07K
Build NYC Resource Corp., Series 2015 780,000 780,000 0 0.42% -$4.88K
NIAGRA NY FRONT 5% 4/1/2038@ 750,000 750,000 0 0.41% -$2.80K
NYS ENV SWD 2.75% 9/1/2050 MT 750,000 750,000 0 0.41% $7.12K
SYRACUSE PILOT 5% 1/1/2036 AMT 1,000,000 1,000,000 0 0.41% -$4.43K
Buffalo & Erie County Industrial Land Development Corp. (Orchard Park), Series 2015, Ref. RB 750,000 750,000 0 0.41% -$1
BUILD NYC RESOURCE CORP NY REVENUE 750,000 750,000 0 0.41% $60
TENNERGY CORP TN GAS REVENUE TGYPWR 10/53 ADJUSTABLE VAR 705,000 705,000 0 0.41% -$6.77K
CHICAGO ILLIN 5.75% 4/1/2035 690,000 690,000 0 0.38% -$6.80K
PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 904,000 904,000 0 0.38% $10.05K
BUILD NYC RESOURCE CORP NY REVENUE 675,000 675,000 0 0.37% $52
Monroe County Industrial Development Corp. (St. John Fisher College), Series 2024, Ref. RB 635,000 635,000 0 0.36% -$8.77K
Buffalo & Erie County Industrial Land Development Corp. 590,000 590,000 0 0.32% $58
RESTRUCTURED-SER A-2 635,000 635,000 0 0.32% -$6.56K
BUCKEYE TOBACCO SETTLEMENT FIN BUCGEN 06/48 FIXED 4 695,000 695,000 0 0.32% -$18.18K
Village of Bridgeview 615,000 615,000 0 0.31% -$1.20K
SYRACUSE PILOT 5% 1/1/2034 @ 750,000 750,000 0 0.31% -$1.57K
Build NYC Resource Corp., Series A 550,000 550,000 0 0.30% -$4.97K
Tender Option Bond Trust Receipts 500,000 500,000 0 0.30% -$11.75K
GLEN COVE NY LOCAL ECON ASSIST REGD N/C ZCP OID B/E 0.00000000 1,780,000 1,780,000 0 0.29% $14.08K
BLACK BELT ENERGY GAS VAR 525,000 525,000 0 0.29% -$9.44K
STATE OF NEW YORK PERSONAL INCOME TAX REVENUE 5.25% 03-15-50 500,000 500,000 0 0.29% -$4.22K
Schenectady County Capital Resource Corp., Series A 500,000 500,000 0 0.28% -$6.16K
NYC HDC MF MTG 5.25% 12/15/2031 500,000 500,000 0 0.28% -$2.61K
Build NYC Resource Corp., Series A 550,000 550,000 0 0.27% -$21.81K
VIRGIN ISLANDS HOTEL DEV FING REGD OID B/E 6.00000000 515,000 515,000 0 0.27% -$5.63K
New York (State of), NY Housing Development Corp. (Green Bonds), Series 2022 F-1, RB 500,000 500,000 0 0.27% -$6.07K
NEW YORK CITY NY HSG DEV CORP MF HSG REVENUE 500,000 500,000 0 0.27% -$3.68K
NEW YORK CITY NY HSG DEV CORP MF HSG REV 500,000 500,000 0 0.26% -$2.23K
Upper Mohawk Valley Regional Water Finance Authority, Series 2025 500,000 500,000 0 0.26% -$14.74K
Upper Mohawk Valley Regional Water Finance Authority, Series 2025 500,000 500,000 0 0.25% -$20.67K
GOLDEN ST TOBACCO SEC 495,000 495,000 0 0.24% -$88
Buffalo & Erie County Industrial Land Development Corp. 450,000 450,000 0 0.24% $42
RESTRUCTURED-SER A-2 451,000 451,000 0 0.24% $3.21K
Build NYC Resource Corp., Series 2021 400,000 400,000 0 0.20% -$15.62K
NY TRANSN DEV 4% 04/30/2053 @ 435,000 435,000 0 0.20% -$19
NY ST HSG FIN AGY-G-1 350,000 350,000 0 0.19% -$3.22K
Guam (Territory of) Waterworks Authority, Series 2020 A, RB 345,000 345,000 0 0.19% $1.94K
CHICAGO IL BRD OF EDU DEDICATE REGD B/E 5.75000000 325,000 325,000 0 0.18% -$1.05K
State of New York Mortgage Agency Homeowner Mortgage 355,000 355,000 0 0.18% -$11.91K
New York State Housing Finance Agency 340,000 340,000 0 0.18% -$4.44K
State of New York Mortgage Agency Homeowner Mortgage 335,000 335,000 0 0.18% -$6.80K
Wisconsin (State of) Public Finance Authority (American Dream at Meadowlands), Series 2017, RB 445,000 445,000 0 0.18% -$31.15K
Build NYC Resource Corp., Series 2021 320,000 320,000 0 0.17% -$2.56K
RESTRUCTURED-SER A1 354,563 354,563 0 0.16% -$5.06K
TERRITORY OF GUAM SECTION 30 REVENUE 5.0% 12-01-46 300,000 300,000 0 0.16% -$787
NY CONVENTN CTR-B-AG 680,000 680,000 0 0.16% -$36
Buffalo & Erie County Industrial Land Development Corp. 300,000 300,000 0 0.16% $33
Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022 418,654 418,654 0 0.15% $12.56K
Rensselaer County Industrial Development Agency 240,000 240,000 0 0.13% $31
PUBLIC FN 5.625% 12/31/2049 255,000 255,000 0 0.12% $0
State of Illinois, Series 2020 215,000 215,000 0 0.12% -$3.51K
State of Illinois, Series 2020 200,000 200,000 0 0.11% -$1.63K
RESTRUCTURED-SER A-2- 210,000 210,000 0 0.11% $1.50K
St. Lawrence (County of), NY Industrial Development Agency (Clarkson University), Series 2021 A, Ref. RB 200,000 200,000 0 0.11% -$3.79K
PUERTO RICO SALES TAX FING COR REGD OID B/E 4.75000000 200,000 200,000 0 0.10% -$2.28K
RESTRUCTURED-SER A1 184,514 184,514 0 0.10% $474
Port of Beaumont Navigation District 255,000 255,000 0 0.10% -$7.02K
Territory of Guam, Series F 185,000 185,000 0 0.10% -$2.36K
PUERTO RICO ELECTRIC POWER AUTHORITY 5.25% 07-01-27 250,000 250,000 0 0.09% -$938
PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 416,000 416,000 0 0.08% $6.81K
PREREF NEW JERSEY ST TRANSPRTN TRUST REGD B/E PREREFUNDED 12/15/32 @ 100 5.50000000 125,000 125,000 0 0.08% -$3.19K
CHICAGO IL BRD OF EDU DEDICATED CAPITAL IMPT TAX 140,000 140,000 0 0.08% $1.61K
OH BUCGEN 5 06/01/2055 175,000 175,000 0 0.08% -$546
RESTRUCTURED-SER A1 114,620 114,620 0 0.07% -$784
Albany Capital Resource Corp., Series A 125,000 125,000 0 0.07% -$28
WESTCHESTER HLT-UNREF 110,000 110,000 0 0.06% -$22
RESTRUCTURED-SER A1 108,689 108,689 0 0.06% -$167
RESTRUCTURED-SER A1 114,004 114,004 0 0.06% $94
MS DEV BK SPL/AGM 6.88% 12/1/40 100,000 100,000 0 0.06% $96
RESTRUCTURED-CABS-SER 139,873 139,873 0 0.05% $292
Territory of Guam, Series A 100,000 100,000 0 0.05% -$469
MATCHING FUND SPL PURPOSE SECURITIZTN CORP 90,000 90,000 0 0.05% -$336
RESTRUCTURED-SER A1 83,850 83,850 0 0.04% -$325
PUERTO RICO SALES TAX FING COR REGD OID B/E 4.55000000 63,000 63,000 0 0.03% -$269
REF-SER VV-NATL NON 30,000 30,000 0 0.02% -$562
PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 17,000 17,000 0 0.01% $176
RESTRUCTURED-SER A-2 4,000 4,000 0 0.00% -$49

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