Compare fund portfolios
See how two funds' portfolios overlap. Enter two tickers:
MFSSX vs MFSMX
Shared holdings
54
MFSSX covered by MFSMX
9.39%
MFSMX covered by MFSSX
9.39%
Coverage = share of one portfolio's weight reproduced by the other (overlapping positions, min weight). Top 50 positions per side shown; = held by both — hover a shared position to highlight it in both columns.
MFSSX (March 31, 2026)
| Security | Weight | |
|---|---|---|
| MFS Institutional Money Market Portfolio, Class A | 1.68% | |
| MASSACHUSETTS ST DEV FIN AGY R REGD B/E 5.00000000 | 1.37% | |
| Commonwealth of Massachusetts Transportation Fund, Series 2025A | 1.30% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.24% | |
| MA CLEAN WTR TRUST-27 | 1.05% | |
| MBTA SLS TAX 5.25% 7/1/55 | 1.04% | |
| MASSACHUSETTS ST | 1.03% | |
| MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE | 1.03% | |
| MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE | 1.02% | |
| MA ST TRANS REV 5% 6/1/2053 | 1.02% | |
| Tri-County Regional Vocational Technical School District, Series CHAPTER 70B | 0.96% | |
| MASS DEVEL FIN 4% 10/1/2045 | 0.91% | |
| PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000 | 0.90% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 0.89% | |
| MASSACHUSETTS ST PORT AUTH | 0.89% | |
| Massachusetts Development Finance Agency, Series 2025W | 0.89% | |
| Town of Tisbury | 0.88% | |
| Massachusetts Housing Finance Agency | 0.87% | |
| Massachusetts Bay Transportation Authority, Series 2025 B | 0.80% | |
| Massachusetts Educational Financing Authority | 0.79% | |
| WAKEFIELD MA REGD B/E 5.00000000 | 0.78% | |
| Massachusetts Development Finance Agency | 0.78% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 0.77% | |
| MA ST TRANS REV 5% 6/1/2049 | 0.77% | |
| MASS DEVEL FIN 5% 7/1/2048 | 0.77% | |
| MASSACHUSETTS ST PORT AUTH REGD B/E AMT 5.00000000 | 0.76% | |
| MASSACHUSETTS ST | 0.76% | |
| MASSACHUSETTS ST PORT AUTH | 0.76% | |
| MASSACHUSETTS ST TRANSPRTN FUND REVENUE | 0.75% | |
| MASSACHUSETTS ST DEV FIN AGY R REGD B/E 5.50000000 | 0.75% | |
| MASSACHUSETTS ST DEV FIN AGY R REGD B/E 5.00000000 | 0.75% | |
| Massachusetts Housing Finance Agency | 0.75% | |
| Massachusetts Port Authority, Revenue Bonds, Refunding Series 2017A | 0.75% | |
| Massachusetts (Commonwealth of), Series 2024 E, GO Bonds | 0.75% | |
| Massachusetts Housing Finance Agency, Series 2013B | 0.74% | |
| Massachusetts Housing Finance Agency, Series 249 | 0.74% | |
| S E ENERGY COOP DT | 0.72% | |
| MA ST DEV FIN -J2 | 0.71% | |
| Nashoba Regional School District | 0.71% | |
| Commonwealth of Massachusetts Transportation Fund Revenue | 0.71% | |
| Massachusetts Development Finance Agency 4.00% 07/01/2039 | 0.70% | |
| MASSACHUSETTS ST PORT AUTH | 0.70% | |
| Town of Hingham, Series 2025 | 0.70% | |
| NEW BEDFORD MA | 0.69% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 0.69% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 0.67% | |
| MA ST DEV FIN AGY-N | 0.67% | |
| Massachusetts Housing Finance Agency, Single Family Housing Revenue Bonds, Social Series 2024-234 | 0.67% | |
| Massachusetts Development Finance Agency | 0.65% | |
| CALIFORNIA ST HLTH FACS FING AUTH REVENUE | 0.61% |
MFSMX (March 31, 2026)
| Security | Weight | |
|---|---|---|
| MFS Institutional Money Market Portfolio, Class A | 3.29% | |
| MARYLAND ST ECON DEV CORP LEASE REVENUE | 1.33% | |
| Maryland Economic Development Corp., Series 2024 | 1.26% | |
| Montgomery (County of), MD, Series 2017, GO Bonds | 1.22% | |
| MARYLAND ST STD 5% 5/1/2035 | 1.15% | |
| PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000 | 1.11% | |
| County of Prince George's, Series 2025 A | 1.03% | |
| Washington Metropolitan Area Transit Authority Dedicated | 1.03% | |
| Maryland Stadium Authority, Series 2024 | 1.01% | |
| County of Anne Arundel, Series 2025 | 1.00% | |
| MD HLTH & HGR EDL-A | 1.00% | |
| Maryland Health & Higher Educational Facilities Authority | 1.00% | |
| PRINCE GEO COP 5% 10/1/48 | 0.98% | |
| Maryland Community Development Administration, Series 2025 F-1 | 0.97% | |
| MARYLAND STADIUM AUTHORITY | 0.96% | |
| WASHINGTON SUBURBAN SANITARY COMMISSION | 0.94% | |
| COUNTY OF BALTIMORE MD | 0.94% | |
| County of Howard | 0.92% | |
| MARYLAND ST HLTH & HGR EDUCTNL FACS AUTH REVENUE | 0.90% | |
| Maryland Health & Higher Educational Facilities Authority, Series 2004 | 0.90% | |
| County of Anne Arundel, Series 2023 | 0.90% | |
| City of Baltimore, Series 2019 A | 0.89% | |
| Maryland Community Development Administration Department of Housing and Community Development, Residential Revenue Bonds, Taxable Series 2019D | 0.89% | |
| MARYLAND ST STA 4% 6/1/2046 | 0.84% | |
| MARYLAND HEALTH & HIGHER EDUCATIONAL FACILITIES AUTHORITY | 0.83% | |
| Maryland Health & Higher Educational Facilities Authority | 0.81% | |
| MONTGOMERY CNTY MD REVENUE REGD B/E 5.00000000 | 0.80% | |
| Maryland Community Development Administration Local Government Infrastructure | 0.79% | |
| MD CMNTY DEV-D-1 | 0.77% | |
| Washington Metropolitan Area Transit Authority, Series 2018, RB | 0.74% | |
| MD HEFA 4% 7/1/2048 | 0.71% | |
| County of Montgomery | 0.71% | |
| MD CMNTY DEPT ADMIN-B | 0.71% | |
| Maryland Health & Higher Educational Facilities Authority | 0.70% | |
| CALIFORNIA COMMUNITY VAR | 0.70% | |
| MD TRANSPRTN-A-REF | 0.69% | |
| Montgomery County Housing Opportunities Commission, Series 2023 C | 0.69% | |
| Maryland Department of Housing & Community Development, Series 2024 E | 0.69% | |
| MD ECON DEV CORP-A | 0.69% | |
| County of Prince George's | 0.67% | |
| MARYLAND ST ECON DEV CORP AIR CARGO REVENUE | 0.67% | |
| Washington Metropolitan Area Transit Authority, Series 2025, RB | 0.67% | |
| Maryland Stadium Authority Sports Entertainment Facilities Revenue, Series 2023 A | 0.66% | |
| State of Maryland Department of Transportation, Series 2024 A | 0.66% | |
| MARYLAND ST HLTH & HGR EDUCTNL MARYLAND HEALTH & HIGHER EDUCATIONAL FACILITIES AU | 0.66% | |
| MARYLAND ST HLTH & HGR EDUCTNL FACS AUTH REVENUE | 0.66% | |
| Maryland Department of Housing & Community Development, Series 2025 D | 0.66% | |
| State of Maryland Department of Transportation, Series 2024 A | 0.66% | |
| MARYLAND ST STA 4% 6/1/2036 | 0.66% | |
| Montgomery County Housing Opportunities Commission, Series 2025A | 0.66% |
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