{
  "page": "compare",
  "query": {
    "a": "MUB",
    "b": "AFTEX"
  },
  "retrieved_at": "2026-07-07T18:18:35+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": "iShares National Muni Bond ETF",
    "ticker": "MUB",
    "slug": "MUB",
    "series_id": "S000018861",
    "html_url": "https://fundwatcher.app/funds/MUB/"
  },
  "fund_b": {
    "name": "Tax Exempt Bond Fund of America",
    "ticker": "AFTEX",
    "slug": "AFTEX",
    "series_id": "S000009238",
    "html_url": "https://fundwatcher.app/funds/AFTEX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.06753132617306518881417022942",
    "coverage_b_by_a": "0.06753132617306518881417022939",
    "shared_count": 513,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "BLKR-LI MUNI-INS",
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        "name": "UNIV OF TEXAS TX UNIV REVENUES UNIHGR 08/36 FIXED 5",
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      {
        "name": "Connecticut State Health & Educational Facilities Authority, Series 2017C-4",
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        "name": "City of Atlanta Water & Wastewater, Series 2015",
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        "name": "TX NWTSCD 5.25 02/15/2055",
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      },
      {
        "name": "NYS TWY PIT 5% 3/15/2048",
        "value": "69237874.05",
        "weight": "0.00160983",
        "shared": false
      },
      {
        "name": "HOUSTON TX HGR EDU FIN CORP REGD N/C B/E 5.00000000",
        "value": "64910233.40",
        "weight": "0.00150921",
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      },
      {
        "name": "NY ST DORM AUTH PIT 20D SF 4.0% 02-15-47",
        "value": "60673678.11",
        "weight": "0.00141070",
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      },
      {
        "name": "OHIO ST UNIV REGD N/C B/E 5.00000000",
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      },
      {
        "name": "STATE OF CALIFORNIA 5.0% 09-01-31",
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      },
      {
        "name": "State of New Jersey, Series 2020A",
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        "name": "Pennsylvania Turnpike Commission, Series 2019-2",
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        "name": "Chicago Transit Authority, Series A",
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        "name": "State of Illinois, Series D",
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        "name": "MASSACHUSETTS ST-B",
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      {
        "name": "MA ST 5% 11/1/52",
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      {
        "name": "NEW YORK NY",
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      {
        "name": "CALIFORNIA ST EDUCTNL FACS AUTH REVENUE",
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      {
        "name": "San Diego Unified School District, Series 2020D-2",
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        "name": "Triborough Bridge & Tunnel Authority, Series 2024A",
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      {
        "name": "NJ TRN FD CAB-SER C",
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        "name": "Los Angeles Unified School District, Series 2020 RYQ, GO Bonds",
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      {
        "name": "NYC WTR 5% 6/15/48",
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      {
        "name": "PENNSYLVANIA CMWLTH",
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      {
        "name": "TRIBOROUGH NY BRIDGE   TUNNEL TRBTRN 05/51 FIXED 5",
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      {
        "name": "New York State Thruway Authority, Series 2021A-1",
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      {
        "name": "NY ST THRWY AUTH",
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        "name": "OH WTR DEV AUTH-C",
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        "name": "Metropolitan Government of Nashville & Davidson County, Series 2024B",
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      {
        "name": "Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Variable Rate Series 2020",
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      {
        "name": "Maryland (State of) Stadium Authority (Baltimore City Public Schools), Series 2016, RB",
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      {
        "name": "New Orleans, Louisiana, General Obligation Bonds, Public Improvement Series 2024A",
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      {
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      {
        "name": "MBTA SLS TAX 5.25% 7/1/2052",
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      {
        "name": "UNIV OF CA REGENTS",
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      {
        "name": "PROSPER TX INDEP SCH DIST REGD OID B/E PSF-GTD 4.00000000",
        "value": "37790322.40",
        "weight": "0.00087865",
        "shared": true
      },
      {
        "name": "Ector County, Texas, Certificates of Obligation, Series 2024",
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    "b_top": [
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        "name": "WI TREASURY SEC. 0.000000% 02/19/2026",
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        "shared": false
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      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "103173633.90",
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      {
        "name": "Tender Option Bond Trust Receipts/Certificates",
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      {
        "name": "BLACK BELT ENERGY GAS VAR",
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      {
        "name": "GREAT LAKES WATER AUTHORITY SEWAGE DISPOSAL SYSTEM REVENUE AG FRN 07-01-32",
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      {
        "name": "California Community Choice Financing Authority, Series F",
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      {
        "name": "Puerto Rico, General Obligation Bonds, Clawback Highway Transportation Authority Claims Taxable Series 2022",
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      {
        "name": "TX MUNI GAS ACQ VI",
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      {
        "name": "BLACK BELT ENERGY GAS VAR",
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      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024B",
        "value": "66074293.74",
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      },
      {
        "name": "S E ENERGY-B-REV",
        "value": "65122264.48",
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        "shared": false
      },
      {
        "name": "NH NFADEV 4.12 01/20/2034",
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      },
      {
        "name": "Black Belt Energy Gas District, Series 2025 G",
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      },
      {
        "name": "Southeast Energy Authority, Alabama, Commodity Supply Revenue Bonds, Project 2, Series 2021B-1",
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      {
        "name": "TN TNSUTL 5 12/01/2035",
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      {
        "name": "FREDDIE MAC MULTIFAMILY ML CERTIFICATES SER 2024-ML26 CL A V/R 3.26001000",
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        "weight": "0.00246765",
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      },
      {
        "name": "BROOKLYN EVENTS CENTER LLC 5.0% 07-15-42",
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      {
        "name": "Black Belt Energy Gas District, Series F",
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      {
        "name": "NEW HOPE CULTURAL EDU FACS FIN REGD B/E 5.50000000",
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      {
        "name": "NFA 2022-1 A 4.375% 09-20-36",
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      {
        "name": "SOUTH CAROLINA ST PUBLIC SVC AUTH REVENUE",
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      {
        "name": "TEXAS ST MUNI GAS ACQUISITION& TEXAS MUNICIPAL GAS ACQUISITION & SUPPLY CORP IV",
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      },
      {
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      {
        "name": "AZ ST-A",
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      {
        "name": "S E ENERGY COOP DT",
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      {
        "name": "NEW JERSEY ST HSG & MTGE FIN AGY REVENUE",
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      {
        "name": "BANNER HEALTH OBLIGATED GROUP (MPT) FRN 01-01-37",
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      },
      {
        "name": "California (State of) Community Choice Financing Authority (Clean Energy) (Green Bonds), Series 2024, RB",
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      {
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      {
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      {
        "name": "NEW YORK CITY TRANSITIONAL FINANCE AUTHORITY FUTURE TAX SECURED REVENUE FRN 11-01-54",
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      {
        "name": "CA STWD CMNTYS DEV-B",
        "value": "47779460.40",
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      {
        "name": "LOUISIANA ST LOCAL GOVT ENVRNM REGD B/E 2.50000000",
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      },
      {
        "name": "California (State of) Community Choice Financing Authority (Clean Energy) (Green Bonds), Series 2024, RB",
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      {
        "name": "WA ST HSG FIN COMMN-1",
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      {
        "name": "NH NFADEV 11/20/2039",
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      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
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      },
      {
        "name": "MUNIBOND",
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      {
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        "name": "NYC TRANS FIN AUTH-B4",
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      },
      {
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      {
        "name": "Black Belt Energy Gas District, Series D",
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        "weight": "0.00181693",
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      {
        "name": "FHLMC MULTIFAMILY VRD CTFS 21M67-A 2.25% 12-15-37",
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        "weight": "0.00179736",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS DISTRICT (MPT) 5.0% 03-01-55",
        "value": "43782681.37",
        "weight": "0.00179333",
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      },
      {
        "name": "FRETE 2023-ML16 ACA",
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      },
      {
        "name": "NEW YORK NY",
        "value": "42170000.00",
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      {
        "name": "NH NFADEV 02/20/2041",
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      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Series 2022A-1",
        "value": "41821167.96",
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      },
      {
        "name": "Jefferson (County of), AL, Series 2024, Ref. Revenue Wts.",
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      },
      {
        "name": "NYC TRANSTNL FIN-A4",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-008205",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000207169126008205/0002071691-26-008205-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001193125-26-130884",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/50142/000119312526130884/0001193125-26-130884-index.htm"
    }
  ]
}