# Portfolio overlap — MMIIX vs RTHAX Comparing **MFS Municipal High Income Fund** (2026-04-30) and **Tax-Exempt High Yield Bond Fund** (2026-04-30). - Shared positions: 418 - MFS Municipal High Income Fund covered by Tax-Exempt High Yield Bond Fund: 0.1271398101032410693461517911 - Tax-Exempt High Yield Bond Fund covered by MFS Municipal High Income Fund: 0.1271398101032410693461517912 ## MFS Municipal High Income Fund — top positions | Security | Weight | Shared | |----------|--------|--------| | MFS Institutional Money Market Portfolio, Class A | 0.024028 | | | PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000 | 0.018741 | ✓ | | TOWER HEALTH OBLIGATED GROUP 5.0% 06-30-39 | 0.005957 | ✓ | | OH BUCGEN 5 06/01/2055 | 0.005833 | ✓ | | California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB | 0.005060 | ✓ | | NY TRANS CORP(JFK INT NEW ONE)/AGM 5.13% 6/30/60@ | 0.004633 | | | New Hampshire Business Finance Authority, Series 2023A | 0.004553 | | | City of Chicago, Series 2021A | 0.004514 | | | NY TRANS CORP(JFK INT NEW ONE)/AGM 5.25% 6/30/60@ | 0.004427 | | | TOBACCO SETTLEMENT-B2 | 0.004273 | ✓ | | NOVANT HEALTH OBLIGATED GROUP 5.5% 06-01-50 | 0.003824 | | | CHICAGO ILLIN 6% 4/1/2046 | 0.003765 | ✓ | | PENNSYLVANIA ST ECON DEV FING REGD OID B/E AMT AG 5.00000000 | 0.003522 | ✓ | | AL BBEUTL 5 06/01/2036 | 0.003506 | | | NY TRANSPRTN DEV CORP | 0.003396 | ✓ | | NY NYCDEV 5 11/15/2044 | 0.003369 | ✓ | | Wisconsin (State of) Public Finance Authority, Series 2012 B, Ref. RB | 0.003348 | ✓ | | MOHEG CT 608327 7.00% 2/1/2045 | 0.003346 | ✓ | | FL ST DFC 5% 7/1/2044 @ | 0.003309 | | | Palm Beach County, Florida, Revenue Bonds, Provident Group - LU Properties LLC Lynn University Housing Project, Series 2021A | 0.003113 | | | Port of Beaumont Navigation District, Series 2024B | 0.003041 | ✓ | | JEA WTR & SWR REV-A | 0.003028 | | | Wisconsin (State of) Public Finance Authority (American Dream at Meadowlands), Series 2017, RB | 0.003025 | | | PROJECTNEW YORK TRANS | 0.003013 | ✓ | | Alachua County Health Facilities Authority, Series 2025 A | 0.003007 | | | Michigan State Housing Development Authority, Series 2024A | 0.002979 | | | New Hampshire Health and Education Facilities Authority Act, Series 2024 | 0.002877 | | | GOLDEN ST TOBACCO SEC | 0.002839 | ✓ | | Jefferson (County of), AL, Series 2024, Ref. Revenue Wts. | 0.002820 | ✓ | | Energy Southeast A Cooperative District, Series B-1 | 0.002761 | ✓ | | TENNERGY CORP TN GAS REVENUE TGYPWR 10/53 ADJUSTABLE VAR | 0.002736 | | | MONT PA IDA 5.375% 1/1/2050 | 0.002711 | | | TARRANT RETIRE 5.75% 12/1/2054 | 0.002684 | | | OU MEDICINE OBLIGATED GROUP 5.5% 08-15-57 | 0.002644 | ✓ | | New Hampshire Business Finance Authority, Series 2024A | 0.002605 | | | Louisiana (State of) Public Facilities Authority (I-10 Calcasieu River Bridge), Series 2024, RB | 0.002599 | ✓ | | IL CHIEDU 5 12/01/2042 | 0.002584 | ✓ | | NH NFADEV 11/20/2039 | 0.002554 | | | SHELL POINT OBLIGATED GROUP 5.0% 11-15-54 | 0.002538 | | | METROHEALTH SYSTEM 5.5% 02-15-52 | 0.002535 | | | SYRACUSE PILOT 5% 1/1/2034 @ | 0.002529 | | | PUBLIC FIN AUTH WI REVENUE PUBGEN 06/56 FIXED 4.5 | 0.002495 | ✓ | | MWAA DULLES TOL 4% 10/1/2049 | 0.002434 | ✓ | | FL ST DEV FIN CORP | 0.002382 | ✓ | | BERKS PA MUN AU 3% 6/30/2044 | 0.002373 | ✓ | | OREGON ST FCS 4.90% 9/15/2035 | 0.002367 | | | PUBLIC FIN WIS 5.50% 6/1/2055 | 0.002366 | | | Black Belt Energy Gas District, Series 2025 A | 0.002328 | | | SOUTH CAROLINA ST HSG FIN & DEV AUTH MTGE REVENUE | 0.002310 | | | VIRGIN ISLANDS HOTEL DEV FING REGD OID B/E 6.00000000 | 0.002270 | | ## Tax-Exempt High Yield Bond Fund — top positions | Security | Weight | Shared | |----------|--------|--------| | U.S. Cash Management Fund | 0.022721 | | | OH BUCGEN 5 06/01/2055 | 0.011235 | ✓ | | PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 | 0.009425 | ✓ | | PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000 | 0.009146 | ✓ | | WI PUBTRN 6.5 12/31/2065 | 0.005632 | | | New York State Dormitory Authority | 0.005206 | | | Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series A | 0.004997 | | | NY NYCDEV 5 11/15/2044 | 0.004638 | ✓ | | Salt River Project Agricultural Improvement & Power District, Series 2025, RB | 0.004476 | | | San Francisco City & County Airport Comm-San Francisco International Airport, Series 2025D | 0.004451 | | | NEW YORK ST THRUWAY AUTH PERSONAL INCOME TAX REVENUE | 0.004126 | | | NY TRANS CORP 5.50% 6/30/2054 @ | 0.004044 | | | RESTRUCTURED-SER A-2 | 0.004019 | ✓ | | TUSCLSA AL GOZ 5.25% 5/1/2044 | 0.004011 | | | Puerto Rico, GDB Debt Recovery Authority Commonwealth Bonds, Taxable Series 2018 | 0.004008 | | | RESTRUCTURED-SER A1 | 0.003644 | ✓ | | PENNSYLVANIA ST ECON DEV FING REGD B/E AMT 5.75000000 | 0.003642 | ✓ | | Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022 | 0.003507 | ✓ | | City of Orlando, Series 2026B | 0.003504 | | | TX TRANSPRTN FIN-A | 0.003486 | | | City of New York, Series 2026G | 0.003459 | | | Harris County, Texas, Toll Road Revenue Bonds, Refunding First Lien Series 2024A | 0.003456 | | | Weatherford College of the Parker County Junior College District, Series 2025, RB | 0.003422 | | | UNITED STATES VIRGIN ISLANDS FEDERAL EXCISE TAX 5.0% 10-01-30 | 0.003390 | | | AR ARSDEV 09/01/2046 | 0.003371 | | | MISSOURI ST HLTH & EDUCTNL FACS AUTH | 0.003294 | | | STATE OF NEW JERSEY 4.0% 06-15-45 | 0.003139 | | | CHICAGO IL BRD OF EDU REGD OID B/E 5.75000000 | 0.002855 | | | NEW HOPE EDU FACS-A-1 | 0.002847 | | | CA STWD 5% 12/1/2046 | 0.002792 | | | NY TRANS CORP 5.375% 6/30/2060 @ | 0.002764 | | | RESTRUCTURED-SER A-2 | 0.002739 | ✓ | | San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Series 2019 A, RB | 0.002707 | | | George L. Smith II GA World Congress Center Auth. Rev. (Convention Center Hotel) A | 0.002650 | | | SOUTH JERSEY PORT NJ 17B AMT SF 5.0% 01-01-42 | 0.002623 | | | Jefferson (County of), AL, Series 2024, Ref. RB | 0.002598 | | | Toll Road Sr Lien Refunding RB Series 2021A | 0.002579 | | | MWAA DULLES TOL 4% 10/1/2049 | 0.002497 | ✓ | | NH NFAUTL 6.89 04/01/2034 | 0.002418 | | | PROJECTNEW YORK TRANS | 0.002357 | ✓ | | STATE OF ILLINOIS MCCORMICK PLACE EXPANSION PROJECT FUND 4.0% 06-15-52 | 0.002298 | ✓ | | PUERTO RICO SALES TAX FING COR REGD OID B/E 4.75000000 | 0.002280 | ✓ | | BALTIMORE MD WASTEWATER SUB 14C SF 5.0% 07-01-44 | 0.002265 | | | PROMEDICA HEALTHCARE OBLIGATED GROUP 5.25% 11-15-48 | 0.002256 | | | NJ TRANSPRTN TRUST-CC | 0.002185 | | | LONGWOOD HOUSING FOUNDATION LLC 5.0% 01-01-40 | 0.002180 | | | Black Belt Energy Gas District | 0.002161 | | | Travis County Healthcare District | 0.002157 | | | IL CHITRN 5.25 01/01/2061 | 0.002134 | | | PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 | 0.002131 | | ## Sources - N-PORT (fund A) — accession `0002071691-26-015576` (as of 2026-04-30) - N-PORT (fund B) — accession `0001410368-26-063588` (as of 2026-04-30) --- _Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them._ _Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC._ _Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed. See _