{
  "page": "compare",
  "query": {
    "a": "AMHIX",
    "b": "MISHX"
  },
  "retrieved_at": "2026-07-07T18:25:27+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": "American High-Income Municipal Bond Fund",
    "ticker": "AMHIX",
    "slug": "AMHIX",
    "series_id": "S000009229",
    "html_url": "https://fundwatcher.app/funds/AMHIX/"
  },
  "fund_b": {
    "name": "AB Municipal Income Shares",
    "ticker": "MISHX",
    "slug": "MISHX",
    "series_id": "S000029560",
    "html_url": "https://fundwatcher.app/funds/MISHX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1545092251089561221042711575",
    "coverage_b_by_a": "0.1545092251089561221042711577",
    "shared_count": 491,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "Puerto Rico, General Obligation Bonds, Clawback Highway Transportation Authority Claims Taxable Series 2022",
        "value": "128513212.80",
        "weight": "0.00935438",
        "shared": true
      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "125136094.85",
        "weight": "0.00910856",
        "shared": true
      },
      {
        "name": "U.S. Treasury Bills",
        "value": "79992104.00",
        "weight": "0.00582256",
        "shared": false
      },
      {
        "name": "NEW YORK CITY TRANSITIONAL FINANCE AUTHORITY FUTURE TAX SECURED REVENUE FRN 11-01-54",
        "value": "47550000.00",
        "weight": "0.00346113",
        "shared": false
      },
      {
        "name": "WASTE PRO USA INC 3.0% 06-01-32",
        "value": "46753240.20",
        "weight": "0.00340313",
        "shared": false
      },
      {
        "name": "BIG RIVER STEEL LLC 4.5% 09-01-49",
        "value": "46734163.64",
        "weight": "0.00340174",
        "shared": false
      },
      {
        "name": "UIPA CROSSROADS PUBLIC INFRASTRUCTURE DISTRICT AJL PROJECT AREA 4.375% 06-01-52",
        "value": "45745886.61",
        "weight": "0.00332981",
        "shared": false
      },
      {
        "name": "Wisconsin (State of) Public Finance Authority, Series 2023 B, RB",
        "value": "45179437.50",
        "weight": "0.00328858",
        "shared": false
      },
      {
        "name": "CSCDA COMMUNITY IMPROVEMENT AUTHORITY UNION SOUTH BAY 4.0% 07-01-56",
        "value": "41819255.31",
        "weight": "0.00304399",
        "shared": true
      },
      {
        "name": "NEW YORK NY REGD V/R B/E 2.65000000",
        "value": "41800000.00",
        "weight": "0.00304259",
        "shared": false
      },
      {
        "name": "HM Metropolitan District No. 2, Series 2021, GO Bonds",
        "value": "40888143.48",
        "weight": "0.00297622",
        "shared": false
      },
      {
        "name": "EDUCATIONAL GROWTH FUND LLC 5.0% 07-01-56",
        "value": "39166091.48",
        "weight": "0.00285087",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000",
        "value": "39012358.00",
        "weight": "0.00283968",
        "shared": true
      },
      {
        "name": "Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series A",
        "value": "38799848.66",
        "weight": "0.00282421",
        "shared": true
      },
      {
        "name": "UNITED AIRLINES INC 4.0% 07-15-41",
        "value": "38518731.85",
        "weight": "0.00280375",
        "shared": false
      },
      {
        "name": "Public Energy Auth. of Kentucky Gas Supply Rev. Refg. C",
        "value": "36888742.00",
        "weight": "0.00268510",
        "shared": true
      },
      {
        "name": "BIG RIVER STEEL LLC 4.75% 09-01-49",
        "value": "35884394.72",
        "weight": "0.00261200",
        "shared": false
      },
      {
        "name": "OH BUCGEN 5 06/01/2055",
        "value": "35124290.50",
        "weight": "0.00255667",
        "shared": true
      },
      {
        "name": "Montgomery (County of), MD, Series 2017, GO Bonds",
        "value": "34665000.00",
        "weight": "0.00252324",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District, Series 2025 G",
        "value": "34389073.99",
        "weight": "0.00250315",
        "shared": true
      },
      {
        "name": "IL CHIEDU 5 12/01/2042",
        "value": "34258948.02",
        "weight": "0.00249368",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 4.75000000",
        "value": "34107948.67",
        "weight": "0.00248269",
        "shared": true
      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "33807091.72",
        "weight": "0.00246079",
        "shared": true
      },
      {
        "name": "Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series B",
        "value": "33411815.64",
        "weight": "0.00243202",
        "shared": true
      },
      {
        "name": "CO CCKFAC 6 12/01/2051",
        "value": "33269477.90",
        "weight": "0.00242166",
        "shared": false
      },
      {
        "name": "WA ST HSG FIN COMMN-1",
        "value": "31984346.88",
        "weight": "0.00232812",
        "shared": true
      },
      {
        "name": "State of Hawaii Department of Budget and Finance, The Queen's Health Systems, Series 2025B",
        "value": "31870000.00",
        "weight": "0.00231979",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD OID B/E 7.00000000",
        "value": "31584014.00",
        "weight": "0.00229898",
        "shared": true
      },
      {
        "name": "NY TRANSPRTN DEV -AMT",
        "value": "31483876.32",
        "weight": "0.00229169",
        "shared": true
      },
      {
        "name": "TOBACCO SETTLEMENT-B2",
        "value": "31442203.98",
        "weight": "0.00228865",
        "shared": true
      },
      {
        "name": "FREDDIE MAC MULTIFAMILY ML CERTIFICATES SER 2024-ML26 CL A V/R 3.26001000",
        "value": "31288380.46",
        "weight": "0.00227746",
        "shared": false
      },
      {
        "name": "PALISADE PARK NORTH METROPOLITAN DISTRICT NO 3 5.5% 12-01-51",
        "value": "30810305.32",
        "weight": "0.00224266",
        "shared": false
      },
      {
        "name": "Tender Option Bond Trust Receipts/Certificates",
        "value": "29720389.44",
        "weight": "0.00216332",
        "shared": true
      },
      {
        "name": "STATE OF HAWAII DEPARTMENT OF BUDGET & FINANCE 4.0% 03-01-37",
        "value": "29713449.36",
        "weight": "0.00216282",
        "shared": false
      },
      {
        "name": "LONGS PEAK METROPOLITAN DISTRICT 5.25% 12-01-51",
        "value": "29712834.72",
        "weight": "0.00216277",
        "shared": true
      },
      {
        "name": "TOWN OF LITTLE ELM TX SPIRITAS RANCH PUBLIC IMPROVEMENT DISTRICT 5.375% 09-01-51",
        "value": "29619146.15",
        "weight": "0.00215596",
        "shared": false
      },
      {
        "name": "AM BIDCO OPERATIONS LLC PIK TL 1ST LIEN 8.5% 10-21-27",
        "value": "29561841.69",
        "weight": "0.00215178",
        "shared": false
      },
      {
        "name": "CSCDA Community Improvement Authority, Series 2021 A",
        "value": "29434923.74",
        "weight": "0.00214255",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5% 8/1/2031 AMT",
        "value": "29411465.98",
        "weight": "0.00214084",
        "shared": false
      },
      {
        "name": "LOUISIANA ST LOCAL GOVT ENVRNM REGD B/E 2.50000000",
        "value": "28876004.10",
        "weight": "0.00210186",
        "shared": false
      },
      {
        "name": "BUCKLEY METROPOLITAN DISTRICT NO 2 6.0% 12-01-51",
        "value": "28818244.80",
        "weight": "0.00209766",
        "shared": false
      },
      {
        "name": "BROOKLYN EVENTS CENTER LLC 5.0% 07-15-42",
        "value": "28662408.18",
        "weight": "0.00208631",
        "shared": false
      },
      {
        "name": "UNITED AIRLINES INC 5.25% 07-15-34",
        "value": "28435137.75",
        "weight": "0.00206977",
        "shared": true
      },
      {
        "name": "Rampart Range Metropolitan District No. 5, Series 2021, RB",
        "value": "28365493.66",
        "weight": "0.00206470",
        "shared": false
      },
      {
        "name": "New Hampshire (State of) Business Finance Authority (Social Bonds), Series 2022-2A, RB",
        "value": "28158572.09",
        "weight": "0.00204964",
        "shared": true
      },
      {
        "name": "RIVERSIDE HEALTHCARE ASSOCIATION OBLIGATED GROUP 5.33% 07-01-45",
        "value": "27901646.10",
        "weight": "0.00203094",
        "shared": false
      },
      {
        "name": "California Community Housing Agency, Series 2021 A-2",
        "value": "27595370.25",
        "weight": "0.00200865",
        "shared": false
      },
      {
        "name": "TX EXXON 12 G=EXXON V1",
        "value": "27400000.00",
        "weight": "0.00199443",
        "shared": false
      },
      {
        "name": "LOUDOUN IDA VAR-C-HOW",
        "value": "27200000.00",
        "weight": "0.00197987",
        "shared": false
      },
      {
        "name": "NY TRANS CORP(LAGUARDIA GATEW) 5.25% 1/1/50@",
        "value": "27176141.35",
        "weight": "0.00197813",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "AB Fixed Income Shares, Inc. - Government Money Market Portfolio",
        "value": "843846105.97",
        "weight": "0.04767491",
        "shared": false
      },
      {
        "name": "USD-SOFR-OIS Compound---20350226",
        "value": "165710354.45",
        "weight": "0.00936217",
        "shared": false
      },
      {
        "name": "WI PUBTRN 5.75 12/31/2065",
        "value": "146636415.14",
        "weight": "0.00828454",
        "shared": true
      },
      {
        "name": "OH BUCGEN 5 06/01/2055",
        "value": "119568389.47",
        "weight": "0.00675527",
        "shared": true
      },
      {
        "name": "TOBACCO SETTLEMENT FING CORP N TOBGEN 06/46 FIXED 5",
        "value": "114385964.24",
        "weight": "0.00646248",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "112745212.26",
        "weight": "0.00636978",
        "shared": false
      },
      {
        "name": "WI PUBTRN 5.75 06/30/2060",
        "value": "107340707.01",
        "weight": "0.00606445",
        "shared": true
      },
      {
        "name": "COLORADO ST HLTH FACS AUTH REV REGD B/E 5.00000000",
        "value": "95758379.75",
        "weight": "0.00541008",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB",
        "value": "95572138.24",
        "weight": "0.00539955",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "93608761.22",
        "weight": "0.00528863",
        "shared": false
      },
      {
        "name": "Tender Option Bond Trust Receipts/Certificates",
        "value": "83612388.55",
        "weight": "0.00472386",
        "shared": true
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024B",
        "value": "74219736.85",
        "weight": "0.00419320",
        "shared": true
      },
      {
        "name": "SOUTHEST ENERGY (BP) 5.25% 11/1/35 MT",
        "value": "73080770.41",
        "weight": "0.00412886",
        "shared": true
      },
      {
        "name": "ARC70 II TR CA",
        "value": "69526381.89",
        "weight": "0.00392804",
        "shared": false
      },
      {
        "name": "Louisiana (State of) Public Facilities Authority (I-10 Calcasieu River Bridge), Series 2024, RB",
        "value": "68537811.03",
        "weight": "0.00387219",
        "shared": false
      },
      {
        "name": "WI PUBTRN 6.5 12/31/2065",
        "value": "66596178.78",
        "weight": "0.00376250",
        "shared": true
      },
      {
        "name": "TN TNSUTL 5 12/01/2035",
        "value": "66332815.51",
        "weight": "0.00374762",
        "shared": true
      },
      {
        "name": "TX TXSUTL 01/01/2055",
        "value": "65101442.95",
        "weight": "0.00367805",
        "shared": true
      },
      {
        "name": "Black Belt Energy Gas District, Series 2025, RB",
        "value": "64624197.60",
        "weight": "0.00365108",
        "shared": true
      },
      {
        "name": "NY TRANS CORP 5% 6/30/2060 @",
        "value": "60990523.48",
        "weight": "0.00344579",
        "shared": false
      },
      {
        "name": "NY NYTTRN 5.5 06/30/2060",
        "value": "59768913.74",
        "weight": "0.00337677",
        "shared": true
      },
      {
        "name": "NY TRANSPRTN DEV CORP",
        "value": "59546063.18",
        "weight": "0.00336418",
        "shared": true
      },
      {
        "name": "DESERTXPRESS ENTERPRISES LLC (MPT) 12.0% 01-01-65",
        "value": "58725000.00",
        "weight": "0.00331780",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "58516268.32",
        "weight": "0.00330600",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS DISTRICT (MPT) 5.0% 03-01-55",
        "value": "58276859.36",
        "weight": "0.00329248",
        "shared": true
      },
      {
        "name": "TEXAS TRANSPORTATION COMMISSIO TXSTRN 08/57 FIXED 5",
        "value": "56588413.71",
        "weight": "0.00319708",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 D, RB",
        "value": "54309693.65",
        "weight": "0.00306834",
        "shared": false
      },
      {
        "name": "Southeast Alabama Gas Supply District (The), Series A",
        "value": "53903929.94",
        "weight": "0.00304542",
        "shared": false
      },
      {
        "name": "UNITED AIRLINES INC 5.5% 07-15-37",
        "value": "53768053.82",
        "weight": "0.00303774",
        "shared": true
      },
      {
        "name": "LN HLDG-1-RCPT",
        "value": "52700000.00",
        "weight": "0.00297740",
        "shared": false
      },
      {
        "name": "PUBLIC FIN AUTH WI REVENUE",
        "value": "52684809.30",
        "weight": "0.00297654",
        "shared": false
      },
      {
        "name": "TEXAS ST MUNI GAS ACQUISITION& TEXAS MUNICIPAL GAS ACQUISITION & SUPPLY CORP IV",
        "value": "52468724.59",
        "weight": "0.00296433",
        "shared": true
      },
      {
        "name": "MARYLAND ST ECON DEV CORP PRIV REGD B/E AMT 5.25000000",
        "value": "52011186.62",
        "weight": "0.00293848",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series 2023 E-1",
        "value": "51965215.33",
        "weight": "0.00293589",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "51140859.58",
        "weight": "0.00288931",
        "shared": true
      },
      {
        "name": "State of Colorado, Series B",
        "value": "50562410.00",
        "weight": "0.00285663",
        "shared": true
      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
        "value": "50103825.31",
        "weight": "0.00283072",
        "shared": false
      },
      {
        "name": "NY TRNSPRTN DEV CRP-A",
        "value": "49912964.84",
        "weight": "0.00281994",
        "shared": true
      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
        "value": "48792021.65",
        "weight": "0.00275661",
        "shared": true
      },
      {
        "name": "TN TNSUTL 5 11/01/2034",
        "value": "48076200.99",
        "weight": "0.00271617",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "47675106.69",
        "weight": "0.00269351",
        "shared": true
      },
      {
        "name": "TX PRIVATE ACTIVITY",
        "value": "46842963.18",
        "weight": "0.00264649",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU REGD B/E 6.00000000",
        "value": "45806202.28",
        "weight": "0.00258792",
        "shared": true
      },
      {
        "name": "S E ENERGY-B-REV",
        "value": "45421808.54",
        "weight": "0.00256620",
        "shared": true
      },
      {
        "name": "VIRGINIA SMALL BUSINESS FING A VASDEV 12/56 FIXED 5",
        "value": "44555872.68",
        "weight": "0.00251728",
        "shared": false
      },
      {
        "name": "TENNERGY CORP TN GAS REVENUE TENNERGY CORP/TN",
        "value": "44529577.51",
        "weight": "0.00251579",
        "shared": false
      },
      {
        "name": "NE CENPWR 08/01/2055",
        "value": "43506019.35",
        "weight": "0.00245797",
        "shared": false
      },
      {
        "name": "California (State of) Housing Finance Agency (Social Certificates), Series 2021-2A, Revenue Ctfs.",
        "value": "42699274.04",
        "weight": "0.00241239",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000",
        "value": "42694836.36",
        "weight": "0.00241214",
        "shared": true
      },
      {
        "name": "TX MUNI GAS ACQ VI",
        "value": "42410768.36",
        "weight": "0.00239609",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001193125-26-130883",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/925950/000119312526130883/0001193125-26-130883-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-032466",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1274676/000141036826032466/0001410368-26-032466-index.htm"
    }
  ]
}