Compare fund portfolios
See how two funds' portfolios overlap. Enter two tickers:
ECMMX vs MFSSX
Shared holdings
12
ECMMX covered by MFSSX
6.81%
MFSSX covered by ECMMX
6.81%
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.
ECMMX (March 31, 2026)
| Security | Weight | |
|---|---|---|
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 4.45% | |
| MASSACHUSETTS ST HLTH & EDUCTNL FACS AUTH | 4.21% | |
| MA ST SPL OB DE 5.50% NATL/FGIC 1/1/2030 | 3.92% | |
| MASSACHUSETTS ST PORT AUTH REGD B/E AMT 5.00000000 | 2.97% | |
| MASSACHUSETTS ST WTR POLL ABATEMENT TRUST | 2.64% | |
| MASSACHUSETTS ST HLTH & EDUCTNL FACS AUTH REVENUE | 2.29% | |
| MA WTR RES AUTH-F-REF | 2.17% | |
| MASSACHUSETTS ST DEV FIN AGY R REGD B/E 5.00000000 | 2.12% | |
| Northeast Metropolitan Regional Vocational Technical School District, Massachusetts, General Obligation Bonds, School Series 2022 | 2.07% | |
| MBTA SLS TAX 5.25% 7/1/50 | 2.05% | |
| BlackRock Liquidity Funds - MuniCash | 2.04% | |
| MA ST DEV FIN AGY-M | 2.02% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.95% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.89% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.87% | |
| MASS CMNWLTH-A | 1.86% | |
| MASSACHUSETTS ST PORT AUTH SPL FACS REVENUE | 1.81% | |
| NEW BEDFORD MA | 1.77% | |
| MASSACHUSETTS ST BAY TRANSPRTN AUTH SALES TAX REVENUE | 1.75% | |
| MASS GENERAL BRIGHAM INC 5.0% 07-01-45 | 1.53% | |
| MA ST 5.25% 10/1/2047 | 1.52% | |
| UNIV OF MASSACHUSETTS MA BLDGAUTH PROJ REVENUE | 1.48% | |
| MASSACHUSETTS ST DEV FIN AGY R REGD B/E 5.00000000 | 1.46% | |
| MASSACHUSETTS ST HSG FIN AGY HSG REVENUE | 1.46% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.45% | |
| BOSTON MA WTR & SWR COMMISSION | 1.45% | |
| MA ST DEV FIN AGY-A-1 | 1.42% | |
| MASSACHUSETTS ST DEV FIN AGY R REGD B/E 4.00000000 | 1.39% | |
| PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000 | 1.38% | |
| CONCORD MA | 1.37% | |
| NEWBRIDGE ON THE CHARLES INC OBLIGATED GROUP 5.0% 10-01-57 | 1.37% | |
| RESTRUCTURED-SER A1 | 1.33% | |
| MASSACHUSETTS ST EDUCTNL FING REGD N/C OID B/E AMT 4.25000000 | 1.31% | |
| UNIV OF MASSACHUSETTS MA BLDGAUTH PROJ REVENUE | 1.30% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.27% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.24% | |
| EAST LONGMEADOW MA | 1.23% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.20% | |
| FRAMINGHAM MA | 1.17% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.16% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.14% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.12% | |
| GTR FALL RIVER MA VOTECH SCH DIST | 1.11% | |
| MASSACHUSETTS ST DEV FIN AGY REVENUE | 1.04% | |
| TYNGSBOROUGH MA | 1.02% | |
| MASSACHUSETTS ST PORT AUTH SPL FACS REVENUE | 1.02% | |
| New Hampshire Business Finance Authority, Series 2023A | 1.02% | |
| MASSACHUSETTS BAY MA TRANSPRTN MASSACHUSETTS BAY TRANSPORTATION AUTHORITY ASSESSM | 1.01% | |
| MASSACHUSETTS ST HLTH & EDUCTNL FACS AUTH REVENUE | 1.01% | |
| MA ST EDU FIN AUTH-B | 0.99% |
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% |
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