{
  "page": "compare",
  "query": {
    "a": "ABTZX",
    "b": "ATTYX"
  },
  "retrieved_at": "2026-07-07T18:23:15+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": "AB High Income Municipal Portfolio",
    "ticker": "ABTZX",
    "slug": "ABTZX",
    "series_id": "S000027380",
    "html_url": "https://fundwatcher.app/funds/ABTZX/"
  },
  "fund_b": {
    "name": "AB Tax-Aware Fixed Income Opportunities Portfolio",
    "ticker": "ATTYX",
    "slug": "ATTYX",
    "series_id": "S000043269",
    "html_url": "https://fundwatcher.app/funds/ATTYX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.2063714244548668938498794103",
    "coverage_b_by_a": "0.2063714244548668938498794101",
    "shared_count": 374,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "TOBACCO SETTLEMENT FING CORP N TOBGEN 06/46 FIXED 5",
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        "weight": "0.01544618",
        "shared": true
      },
      {
        "name": "AB Fixed Income Shares, Inc. - Government Money Market Portfolio",
        "value": "33723046.92",
        "weight": "0.01174855",
        "shared": true
      },
      {
        "name": "PUBLIC FIN AUTH WI REVENUE",
        "value": "25733921.40",
        "weight": "0.00896527",
        "shared": true
      },
      {
        "name": "VIRGINIA TOBACCO SENIOR-SER B1",
        "value": "24422889.59",
        "weight": "0.00850853",
        "shared": false
      },
      {
        "name": "ARC70 II TR CA",
        "value": "22024767.96",
        "weight": "0.00767306",
        "shared": true
      },
      {
        "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": true
      },
      {
        "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",
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      },
      {
        "name": "RESTRUCTURED-CABS-SER",
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      },
      {
        "name": "Carrollton-Farmers Branch Independent School District, Series 2025, GO Bonds",
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      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "15303248.79",
        "weight": "0.00533140",
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      },
      {
        "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",
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      },
      {
        "name": "ARKANSAS ST DEV FIN AUTH INDL REGD B/E AMT 7.37500000",
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      },
      {
        "name": "GOLDEN ST TOBACCO SECURITIZATI REGD ZCP OID B/E 0.00000000",
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        "weight": "0.00483250",
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      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD OID B/E 5.50000000",
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        "weight": "0.00476009",
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      },
      {
        "name": "Wisconsin (State of) Center District, Series 2020 D, RB",
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      {
        "name": "ALIGN CAP SER 2021-3 TRUST",
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        "weight": "0.00473372",
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      },
      {
        "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": true
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD N/C B/E 5.25000000",
        "value": "12723704.00",
        "weight": "0.00443273",
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      },
      {
        "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",
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      },
      {
        "name": "NY TRANS CORP 5.50% 6/30/2054 @",
        "value": "12192110.46",
        "weight": "0.00424753",
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      },
      {
        "name": "SCRANTON-LACKAWANNA PA HLTH & WELFARE AUTH",
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      {
        "name": "NH NFADEV 4.12 01/20/2034",
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        "weight": "0.00421414",
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      },
      {
        "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",
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      },
      {
        "name": "California Community Housing Agency, Series A-1",
        "value": "11583002.70",
        "weight": "0.00403533",
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      },
      {
        "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",
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      },
      {
        "name": "DALLAS-FORT WORTH TX INTERNATI REGD B/E AMT 5.00000000",
        "value": "11369806.00",
        "weight": "0.00396105",
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      {
        "name": "RESTRUCTURED-SER A-2",
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        "weight": "0.00394009",
        "shared": false
      },
      {
        "name": "OU MEDICINE OBLIGATED GROUP 5.5% 08-15-57",
        "value": "11308977.36",
        "weight": "0.00393986",
        "shared": false
      },
      {
        "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": true
      },
      {
        "name": "PLEASANTON USD",
        "value": "10976912.42",
        "weight": "0.00382417",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "10898214.00",
        "weight": "0.00379676",
        "shared": true
      },
      {
        "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": false
      },
      {
        "name": "THE CHILDRENS TRUST FUND PR TO CHIGEN 05/57 ZEROCPNOID 0",
        "value": "10757341.50",
        "weight": "0.00374768",
        "shared": true
      },
      {
        "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": true
      },
      {
        "name": "Phoenix Industrial Development Authority, Arizona, Education Facility Revenue Bonds, Great Hearts Academies Project, Series 2014A",
        "value": "10699838.01",
        "weight": "0.00372765",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "AB Fixed Income Shares, Inc. - Government Money Market Portfolio",
        "value": "35927244.53",
        "weight": "0.02908969",
        "shared": true
      },
      {
        "name": "SOUTHEAST ENRG 5% MT",
        "value": "10595762.00",
        "weight": "0.00857921",
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      },
      {
        "name": "California Community Choice Financing Authority, Series B-1",
        "value": "10576049.00",
        "weight": "0.00856325",
        "shared": false
      },
      {
        "name": "COLUMBUS REGL ARPT-A",
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        "weight": "0.00856206",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5.5% 10/1/54@",
        "value": "10460039.00",
        "weight": "0.00846932",
        "shared": false
      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2023A",
        "value": "10422432.00",
        "weight": "0.00843887",
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      {
        "name": "MASSACHUSETTS ST MAS 12/54 FIXED 5",
        "value": "10342691.00",
        "weight": "0.00837431",
        "shared": false
      },
      {
        "name": "NEW YORK ST TWY -C",
        "value": "10114276.00",
        "weight": "0.00818936",
        "shared": false
      },
      {
        "name": "INDIANA ST FIN AUTH HLTH FAC REVENUE",
        "value": "9554533.24",
        "weight": "0.00773615",
        "shared": false
      },
      {
        "name": "Hillsborough County Industrial Development Authority",
        "value": "8550000.00",
        "weight": "0.00692279",
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      },
      {
        "name": "PORT SEATTLE 5% 10/1/2040@",
        "value": "7690118.80",
        "weight": "0.00622656",
        "shared": false
      },
      {
        "name": "BAY AREA TOLL-H",
        "value": "7500000.00",
        "weight": "0.00607263",
        "shared": false
      },
      {
        "name": "District of Columbia Income Tax Revenue (TOBs)",
        "value": "6825499.72",
        "weight": "0.00552649",
        "shared": false
      },
      {
        "name": "NY TRANSPRTN DEV CORP",
        "value": "6681910.65",
        "weight": "0.00541023",
        "shared": true
      },
      {
        "name": "LOS ANGELES CA WSTWTR SYS REVENUE",
        "value": "6542041.74",
        "weight": "0.00529698",
        "shared": false
      },
      {
        "name": "MET WASHINGTON DC ARPTS AUTH DULLES TOLL ROAD REVENUE",
        "value": "6356210.00",
        "weight": "0.00514652",
        "shared": false
      },
      {
        "name": "COLORADO ST EDUC LOAN PROGRAM",
        "value": "6217089.12",
        "weight": "0.00503387",
        "shared": false
      },
      {
        "name": "MIAMI-DADE CNTY FL AVIATION REVENUE",
        "value": "6195581.46",
        "weight": "0.00501646",
        "shared": true
      },
      {
        "name": "State of Colorado, Series B",
        "value": "6067489.20",
        "weight": "0.00491275",
        "shared": false
      },
      {
        "name": "PVT CLGS & UNIV AUTH-",
        "value": "5803955.00",
        "weight": "0.00469937",
        "shared": false
      },
      {
        "name": "Grand Traverse County Hospital Finance Authority, Series 2019 C",
        "value": "5800000.00",
        "weight": "0.00469616",
        "shared": false
      },
      {
        "name": "QUINCY MA",
        "value": "5691273.17",
        "weight": "0.00460813",
        "shared": false
      },
      {
        "name": "WI PUBTRN 5.75 12/31/2065",
        "value": "5635884.79",
        "weight": "0.00456328",
        "shared": true
      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/2048",
        "value": "5522824.76",
        "weight": "0.00447174",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "5428533.50",
        "weight": "0.00439539",
        "shared": true
      },
      {
        "name": "District of Columbia (Green Bonds), Series 2022 A, RB",
        "value": "5337580.63",
        "weight": "0.00432175",
        "shared": false
      },
      {
        "name": "LOS ANGELES-D-REF-REV",
        "value": "5060426.08",
        "weight": "0.00409734",
        "shared": false
      },
      {
        "name": "MIAMI-DADE CNTY FL AVIATION REVENUE",
        "value": "5041995.06",
        "weight": "0.00408242",
        "shared": true
      },
      {
        "name": "UNITED AIRLINES INC 5.5% 07-15-38",
        "value": "5032630.36",
        "weight": "0.00407484",
        "shared": true
      },
      {
        "name": "COBB COUNTY SCHOOL DISTRICT",
        "value": "4821914.05",
        "weight": "0.00390422",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5% 6/30/2049 @",
        "value": "4797281.28",
        "weight": "0.00388428",
        "shared": false
      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "4561091.40",
        "weight": "0.00369304",
        "shared": true
      },
      {
        "name": "State of Illinois, Series 2025B",
        "value": "4486240.80",
        "weight": "0.00363243",
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      },
      {
        "name": "NJ TRANSPRTN TRUST-A",
        "value": "4307831.25",
        "weight": "0.00348798",
        "shared": false
      },
      {
        "name": "TN TNSUTL 5 11/01/2034",
        "value": "4250010.08",
        "weight": "0.00344116",
        "shared": false
      },
      {
        "name": "FEDERAL HOME LOAN MTGE CORP MF VARIABLE RATE CTFS",
        "value": "4174927.87",
        "weight": "0.00338037",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST",
        "value": "4127398.80",
        "weight": "0.00334189",
        "shared": false
      },
      {
        "name": "WI PUBTRN 5.75 06/30/2060",
        "value": "4126895.49",
        "weight": "0.00334148",
        "shared": true
      },
      {
        "name": "Southeast Alabama Gas Supply District (The), Series A",
        "value": "4095733.71",
        "weight": "0.00331625",
        "shared": false
      },
      {
        "name": "ANCHORAGE MUNICIPLITY",
        "value": "4091193.60",
        "weight": "0.00331257",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS DISTRICT (MPT) 5.0% 03-01-55",
        "value": "4066204.14",
        "weight": "0.00329234",
        "shared": true
      },
      {
        "name": "DESERTXPRESS ENTERPRISES LLC (MPT) 3.5% 01-01-65",
        "value": "4001887.60",
        "weight": "0.00324026",
        "shared": false
      },
      {
        "name": "MET WASHINGTON DC ARPTS AUTH ARPT SYS REVENUE",
        "value": "3925418.43",
        "weight": "0.00317835",
        "shared": false
      },
      {
        "name": "NATIONAL FIN AUTH NH REVENUE",
        "value": "3868828.77",
        "weight": "0.00313253",
        "shared": true
      },
      {
        "name": "SAN FRANCISCO CITY & COUNTY AIRPORT COMM-SAN FRANCISCO INTERNATIONAL AIRPORT 5.25% 05-01-40",
        "value": "3794201.10",
        "weight": "0.00307210",
        "shared": false
      },
      {
        "name": "Metropolitan Nashville, TN Airport Auth. Rev. B, AMT",
        "value": "3660288.80",
        "weight": "0.00296368",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "3604346.02",
        "weight": "0.00291838",
        "shared": true
      },
      {
        "name": "Black Belt Energy Gas District, Series D-3",
        "value": "3579280.00",
        "weight": "0.00289808",
        "shared": true
      },
      {
        "name": "NJ TRANSPRTN TRUST-AA",
        "value": "3508015.16",
        "weight": "0.00284038",
        "shared": false
      },
      {
        "name": "ID HLTH FACS AUTH-C",
        "value": "3500000.00",
        "weight": "0.00283389",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "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"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-032462",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/3794/000141036826032462/0001410368-26-032462-index.htm"
    }
  ]
}