{
  "page": "compare",
  "query": {
    "a": "RTHAX",
    "b": "ABTHX"
  },
  "retrieved_at": "2026-07-07T19:37:35+00:00",
  "disclaimer": "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.",
  "attribution": "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.",
  "terms": {
    "notice": "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.",
    "url": "https://fundwatcher.app/terms/"
  },
  "fund_a": {
    "name": "Tax-Exempt High Yield Bond Fund",
    "ticker": "RTHAX",
    "slug": "RTHAX",
    "series_id": "S000049244",
    "html_url": "https://fundwatcher.app/funds/RTHAX/"
  },
  "fund_b": {
    "name": "AB High Income Municipal Portfolio",
    "ticker": "ABTHX",
    "slug": "ABTHX",
    "series_id": "S000027380",
    "html_url": "https://fundwatcher.app/funds/ABTHX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1182102642509745952329308370",
    "coverage_b_by_a": "0.1182102642509745952329308369",
    "shared_count": 188,
    "as_of": {
      "a": "2026-04-30",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "U.S. Cash Management Fund",
        "value": "55179394.91",
        "weight": "0.02272131",
        "shared": false
      },
      {
        "name": "OH BUCGEN 5 06/01/2055",
        "value": "27284443.25",
        "weight": "0.01123496",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000",
        "value": "22888653.62",
        "weight": "0.00942490",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "22211667.24",
        "weight": "0.00914614",
        "shared": true
      },
      {
        "name": "WI PUBTRN 6.5 12/31/2065",
        "value": "13678115.32",
        "weight": "0.00563226",
        "shared": true
      },
      {
        "name": "New York State Dormitory Authority",
        "value": "12641952.24",
        "weight": "0.00520560",
        "shared": false
      },
      {
        "name": "Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series A",
        "value": "12136517.47",
        "weight": "0.00499747",
        "shared": true
      },
      {
        "name": "NY NYCDEV 5 11/15/2044",
        "value": "11263178.59",
        "weight": "0.00463786",
        "shared": true
      },
      {
        "name": "Salt River Project Agricultural Improvement & Power District, Series 2025, RB",
        "value": "10869432.80",
        "weight": "0.00447573",
        "shared": true
      },
      {
        "name": "San Francisco City & County Airport Comm-San Francisco International Airport, Series 2025D",
        "value": "10809919.70",
        "weight": "0.00445122",
        "shared": false
      },
      {
        "name": "NEW YORK ST THRUWAY AUTH PERSONAL INCOME TAX REVENUE",
        "value": "10019221.50",
        "weight": "0.00412563",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5.50% 6/30/2054 @",
        "value": "9820658.07",
        "weight": "0.00404387",
        "shared": true
      },
      {
        "name": "RESTRUCTURED-SER A-2",
        "value": "9759620.24",
        "weight": "0.00401874",
        "shared": false
      },
      {
        "name": "TUSCLSA AL GOZ 5.25% 5/1/2044",
        "value": "9739639.19",
        "weight": "0.00401051",
        "shared": false
      },
      {
        "name": "Puerto Rico, GDB Debt Recovery Authority Commonwealth Bonds, Taxable Series 2018",
        "value": "9733151.76",
        "weight": "0.00400784",
        "shared": true
      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "8848784.15",
        "weight": "0.00364368",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST ECON DEV FING REGD B/E AMT 5.75000000",
        "value": "8845072.50",
        "weight": "0.00364215",
        "shared": false
      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "8515742.66",
        "weight": "0.00350654",
        "shared": true
      },
      {
        "name": "City of Orlando, Series 2026B",
        "value": "8510543.84",
        "weight": "0.00350440",
        "shared": false
      },
      {
        "name": "TX TRANSPRTN FIN-A",
        "value": "8465863.68",
        "weight": "0.00348600",
        "shared": false
      },
      {
        "name": "City of New York, Series 2026G",
        "value": "8399602.64",
        "weight": "0.00345872",
        "shared": false
      },
      {
        "name": "Harris County, Texas, Toll Road Revenue Bonds, Refunding First Lien Series 2024A",
        "value": "8392079.44",
        "weight": "0.00345562",
        "shared": false
      },
      {
        "name": "Weatherford College of the Parker County Junior College District, Series 2025, RB",
        "value": "8309774.19",
        "weight": "0.00342173",
        "shared": false
      },
      {
        "name": "UNITED STATES VIRGIN ISLANDS FEDERAL EXCISE TAX 5.0% 10-01-30",
        "value": "8233229.67",
        "weight": "0.00339021",
        "shared": false
      },
      {
        "name": "AR ARSDEV 09/01/2046",
        "value": "8186339.68",
        "weight": "0.00337090",
        "shared": false
      },
      {
        "name": "MISSOURI ST HLTH & EDUCTNL FACS AUTH",
        "value": "8000000.00",
        "weight": "0.00329417",
        "shared": false
      },
      {
        "name": "STATE OF NEW JERSEY 4.0% 06-15-45",
        "value": "7624343.24",
        "weight": "0.00313949",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD OID B/E 5.75000000",
        "value": "6934647.16",
        "weight": "0.00285549",
        "shared": true
      },
      {
        "name": "NEW HOPE EDU FACS-A-1",
        "value": "6914830.67",
        "weight": "0.00284733",
        "shared": false
      },
      {
        "name": "CA STWD 5% 12/1/2046",
        "value": "6779999.46",
        "weight": "0.00279181",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5.375% 6/30/2060 @",
        "value": "6712758.08",
        "weight": "0.00276412",
        "shared": true
      },
      {
        "name": "RESTRUCTURED-SER A-2",
        "value": "6651178.58",
        "weight": "0.00273877",
        "shared": true
      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Series 2019 A, RB",
        "value": "6575224.57",
        "weight": "0.00270749",
        "shared": false
      },
      {
        "name": "George L. Smith II GA World Congress Center Auth. Rev. (Convention Center Hotel) A",
        "value": "6435707.12",
        "weight": "0.00265004",
        "shared": false
      },
      {
        "name": "SOUTH JERSEY PORT NJ 17B AMT SF 5.0% 01-01-42",
        "value": "6369629.72",
        "weight": "0.00262283",
        "shared": false
      },
      {
        "name": "Jefferson (County of), AL, Series 2024, Ref. RB",
        "value": "6309095.76",
        "weight": "0.00259791",
        "shared": false
      },
      {
        "name": "Toll Road Sr Lien Refunding RB Series 2021A",
        "value": "6262468.20",
        "weight": "0.00257871",
        "shared": false
      },
      {
        "name": "MWAA DULLES TOL 4% 10/1/2049",
        "value": "6064758.85",
        "weight": "0.00249730",
        "shared": false
      },
      {
        "name": "NH NFAUTL 6.89 04/01/2034",
        "value": "5871424.19",
        "weight": "0.00241769",
        "shared": false
      },
      {
        "name": "PROJECTNEW YORK TRANS",
        "value": "5723636.16",
        "weight": "0.00235683",
        "shared": false
      },
      {
        "name": "STATE OF ILLINOIS MCCORMICK PLACE EXPANSION PROJECT FUND 4.0% 06-15-52",
        "value": "5580657.55",
        "weight": "0.00229796",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 4.75000000",
        "value": "5537190.94",
        "weight": "0.00228006",
        "shared": false
      },
      {
        "name": "BALTIMORE MD WASTEWATER SUB 14C SF 5.0% 07-01-44",
        "value": "5500727.60",
        "weight": "0.00226504",
        "shared": false
      },
      {
        "name": "PROMEDICA HEALTHCARE OBLIGATED GROUP 5.25% 11-15-48",
        "value": "5477933.62",
        "weight": "0.00225566",
        "shared": false
      },
      {
        "name": "NJ TRANSPRTN TRUST-CC",
        "value": "5306782.90",
        "weight": "0.00218518",
        "shared": false
      },
      {
        "name": "LONGWOOD HOUSING FOUNDATION LLC 5.0% 01-01-40",
        "value": "5293975.07",
        "weight": "0.00217991",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District",
        "value": "5246954.75",
        "weight": "0.00216055",
        "shared": false
      },
      {
        "name": "Travis County Healthcare District",
        "value": "5239540.50",
        "weight": "0.00215749",
        "shared": false
      },
      {
        "name": "IL CHITRN 5.25 01/01/2061",
        "value": "5182598.90",
        "weight": "0.00213405",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000",
        "value": "5175015.21",
        "weight": "0.00213092",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "TOBACCO SETTLEMENT FING CORP N TOBGEN 06/46 FIXED 5",
        "value": "44336738.80",
        "weight": "0.01544618",
        "shared": true
      },
      {
        "name": "AB Fixed Income Shares, Inc. - Government Money Market Portfolio",
        "value": "33723046.92",
        "weight": "0.01174855",
        "shared": false
      },
      {
        "name": "PUBLIC FIN AUTH WI REVENUE",
        "value": "25733921.40",
        "weight": "0.00896527",
        "shared": false
      },
      {
        "name": "VIRGINIA TOBACCO SENIOR-SER B1",
        "value": "24422889.59",
        "weight": "0.00850853",
        "shared": true
      },
      {
        "name": "ARC70 II TR CA",
        "value": "22024767.96",
        "weight": "0.00767306",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000",
        "value": "20538660.19",
        "weight": "0.00715533",
        "shared": true
      },
      {
        "name": "OH BUCGEN 5 06/01/2055",
        "value": "19796493.15",
        "weight": "0.00689677",
        "shared": true
      },
      {
        "name": "BRISTOL TN INDL DEV BRD ST SALES TAX REVENUE",
        "value": "19089685.54",
        "weight": "0.00665053",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5% 7/1/41 @",
        "value": "17126091.96",
        "weight": "0.00596645",
        "shared": true
      },
      {
        "name": "NFA 2022-1 A 4.375% 09-20-36",
        "value": "16847798.67",
        "weight": "0.00586949",
        "shared": false
      },
      {
        "name": "RESTRUCTURED-CABS-SER",
        "value": "16158899.67",
        "weight": "0.00562949",
        "shared": true
      },
      {
        "name": "Carrollton-Farmers Branch Independent School District, Series 2025, GO Bonds",
        "value": "15547084.81",
        "weight": "0.00541635",
        "shared": false
      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "15303248.79",
        "weight": "0.00533140",
        "shared": true
      },
      {
        "name": "MANSFIELD TX INDEP SCH DIST",
        "value": "15119820.37",
        "weight": "0.00526749",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "14944265.00",
        "weight": "0.00520633",
        "shared": true
      },
      {
        "name": "Puerto Rico Electric Power Authority, Power Revenue Bonds, Refunding National Series 2007VV",
        "value": "14580399.63",
        "weight": "0.00507957",
        "shared": false
      },
      {
        "name": "ARKANSAS ST DEV FIN AUTH INDL REGD B/E AMT 7.37500000",
        "value": "14133251.60",
        "weight": "0.00492379",
        "shared": false
      },
      {
        "name": "GOLDEN ST TOBACCO SECURITIZATI REGD ZCP OID B/E 0.00000000",
        "value": "13871209.63",
        "weight": "0.00483250",
        "shared": true
      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD OID B/E 5.50000000",
        "value": "13663358.10",
        "weight": "0.00476009",
        "shared": false
      },
      {
        "name": "Wisconsin (State of) Center District, Series 2020 D, RB",
        "value": "13649260.60",
        "weight": "0.00475518",
        "shared": false
      },
      {
        "name": "ALIGN CAP SER 2021-3 TRUST",
        "value": "13587666.00",
        "weight": "0.00473372",
        "shared": false
      },
      {
        "name": "METROPOLITAN PIER & EXPOSITION AUTHORITY",
        "value": "13266992.55",
        "weight": "0.00462200",
        "shared": false
      },
      {
        "name": "MARYLAND ST STADIUM AUTH REVENUE",
        "value": "13041814.50",
        "weight": "0.00454355",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD N/C B/E 5.25000000",
        "value": "12723704.00",
        "weight": "0.00443273",
        "shared": false
      },
      {
        "name": "City of Atlanta, Series 2023 E",
        "value": "12528176.65",
        "weight": "0.00436461",
        "shared": false
      },
      {
        "name": "MISSOURI ST HLTH & EDUCTNL FACS AUTH HLTH FACS REVENUE",
        "value": "12504033.15",
        "weight": "0.00435620",
        "shared": false
      },
      {
        "name": "University of California, Series 2026 CE",
        "value": "12259428.00",
        "weight": "0.00427098",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5.50% 6/30/2054 @",
        "value": "12192110.46",
        "weight": "0.00424753",
        "shared": true
      },
      {
        "name": "SCRANTON-LACKAWANNA PA HLTH & WELFARE AUTH",
        "value": "12179072.85",
        "weight": "0.00424299",
        "shared": false
      },
      {
        "name": "NH NFADEV 4.12 01/20/2034",
        "value": "12096258.68",
        "weight": "0.00421414",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD OID B/E 6.75000000",
        "value": "11942101.06",
        "weight": "0.00416043",
        "shared": false
      },
      {
        "name": "PUBLIC FIN AUTH WI REVENUE REGD OID B/E 4.00000000",
        "value": "11875747.95",
        "weight": "0.00413731",
        "shared": false
      },
      {
        "name": "California Community Housing Agency, Series A-1",
        "value": "11583002.70",
        "weight": "0.00403533",
        "shared": true
      },
      {
        "name": "LOS ANGELES-C-REF",
        "value": "11572593.00",
        "weight": "0.00403170",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District",
        "value": "11450853.69",
        "weight": "0.00398929",
        "shared": false
      },
      {
        "name": "DALLAS-FORT WORTH TX INTERNATI REGD B/E AMT 5.00000000",
        "value": "11369806.00",
        "weight": "0.00396105",
        "shared": false
      },
      {
        "name": "RESTRUCTURED-SER A-2",
        "value": "11309624.28",
        "weight": "0.00394009",
        "shared": true
      },
      {
        "name": "OU MEDICINE OBLIGATED GROUP 5.5% 08-15-57",
        "value": "11308977.36",
        "weight": "0.00393986",
        "shared": true
      },
      {
        "name": "NEW HAMPSHIRE ST HLTH & EDU FACS AUTH REVENUE",
        "value": "11255734.31",
        "weight": "0.00392131",
        "shared": false
      },
      {
        "name": "Central Valley Energy Authority, Series 2026",
        "value": "10994264.00",
        "weight": "0.00383022",
        "shared": false
      },
      {
        "name": "Public Energy Auth. of Kentucky Gas Supply Rev. Refg. C",
        "value": "10991574.00",
        "weight": "0.00382928",
        "shared": false
      },
      {
        "name": "PLEASANTON USD",
        "value": "10976912.42",
        "weight": "0.00382417",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "10898214.00",
        "weight": "0.00379676",
        "shared": false
      },
      {
        "name": "AL BBEUTL 5 07/01/2033",
        "value": "10842091.00",
        "weight": "0.00377720",
        "shared": false
      },
      {
        "name": "SAN ANTONIO TX ELEC & GAS REVE REGD B/E 5.25000000",
        "value": "10807369.00",
        "weight": "0.00376511",
        "shared": false
      },
      {
        "name": "Salt River Project Agricultural Improvement & Power District, Series 2025, RB",
        "value": "10759972.00",
        "weight": "0.00374860",
        "shared": true
      },
      {
        "name": "THE CHILDRENS TRUST FUND PR TO CHIGEN 05/57 ZEROCPNOID 0",
        "value": "10757341.50",
        "weight": "0.00374768",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB",
        "value": "10746832.00",
        "weight": "0.00374402",
        "shared": true
      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/55",
        "value": "10738695.00",
        "weight": "0.00374118",
        "shared": false
      },
      {
        "name": "Phoenix Industrial Development Authority, Arizona, Education Facility Revenue Bonds, Great Hearts Academies Project, Series 2014A",
        "value": "10699838.01",
        "weight": "0.00372765",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-063588",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/351601/000141036826063588/0001410368-26-063588-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-040411",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/798737/000141036826040411/0001410368-26-040411-index.htm"
    }
  ]
}