{
  "page": "compare",
  "query": {
    "a": "SCMB",
    "b": "MUB"
  },
  "retrieved_at": "2026-07-07T14:52:22+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": "Schwab Municipal Bond ETF",
    "ticker": "SCMB",
    "slug": "SCMB",
    "series_id": "S000077692",
    "html_url": "https://fundwatcher.app/funds/SCMB/"
  },
  "fund_b": {
    "name": "iShares National Muni Bond ETF",
    "ticker": "MUB",
    "slug": "MUB",
    "series_id": "S000018861",
    "html_url": "https://fundwatcher.app/funds/MUB/"
  },
  "overlap": {
    "coverage_a_by_b": "0.2091602609442129199926621187",
    "coverage_b_by_a": "0.2091602609442129199926621188",
    "shared_count": 2197,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "NEW YORK NY",
        "value": "9475000.00",
        "weight": "0.00270216",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST",
        "value": "8832193.77",
        "weight": "0.00251884",
        "shared": false
      },
      {
        "name": "Gwinnett County School District, Series 2025, GO Bonds",
        "value": "8700274.40",
        "weight": "0.00248122",
        "shared": false
      },
      {
        "name": "NEW YORK-G-G-1",
        "value": "8435266.50",
        "weight": "0.00240564",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST-1ST",
        "value": "8302973.44",
        "weight": "0.00236791",
        "shared": false
      },
      {
        "name": "NASHVILLE& DAVIDSON-A",
        "value": "8294449.22",
        "weight": "0.00236548",
        "shared": true
      },
      {
        "name": "NEW YORK NY",
        "value": "7886181.12",
        "weight": "0.00224905",
        "shared": true
      },
      {
        "name": "NYC TRANSITIONAL-F-1",
        "value": "7803980.10",
        "weight": "0.00222561",
        "shared": true
      },
      {
        "name": "State of California Department of Water Resources",
        "value": "7685379.80",
        "weight": "0.00219178",
        "shared": false
      },
      {
        "name": "State of Oregon Department of Transportation, Series 2024A",
        "value": "7408672.70",
        "weight": "0.00211287",
        "shared": true
      },
      {
        "name": "NYC TRANSITIONAL-S-1A",
        "value": "7164401.16",
        "weight": "0.00204320",
        "shared": false
      },
      {
        "name": "GWINNETT GA SD 5% 2/1/2032",
        "value": "7056916.65",
        "weight": "0.00201255",
        "shared": false
      },
      {
        "name": "LOS ANGELES UNIF SD-A",
        "value": "6939222.60",
        "weight": "0.00197899",
        "shared": false
      },
      {
        "name": "WASHING ST -C",
        "value": "6919700.39",
        "weight": "0.00197342",
        "shared": false
      },
      {
        "name": "Pennsylvania Turnpike Commission, Series 2023-1",
        "value": "6783788.40",
        "weight": "0.00193466",
        "shared": true
      },
      {
        "name": "NEW YORK CITY NY MUNI",
        "value": "6727639.38",
        "weight": "0.00191865",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "6712127.54",
        "weight": "0.00191422",
        "shared": true
      },
      {
        "name": "Louisville & Jefferson County Metropolitan Sewer District, Series 2024A",
        "value": "6707833.20",
        "weight": "0.00191300",
        "shared": true
      },
      {
        "name": "MASSACHUSETTS ST",
        "value": "6407439.81",
        "weight": "0.00182733",
        "shared": true
      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY R REGD N/C B/E 5.00000000",
        "value": "6305721.14",
        "weight": "0.00179832",
        "shared": true
      },
      {
        "name": "Washington (State of), Series 2018 C, GO Bonds",
        "value": "6126933.60",
        "weight": "0.00174733",
        "shared": true
      },
      {
        "name": "State of Maryland, Series 2023A",
        "value": "6051164.81",
        "weight": "0.00172572",
        "shared": true
      },
      {
        "name": "IN FIN REV 5% 2/1/2039",
        "value": "5980789.94",
        "weight": "0.00170565",
        "shared": false
      },
      {
        "name": "NYC NY 5% 8/1/2034",
        "value": "5951051.91",
        "weight": "0.00169717",
        "shared": false
      },
      {
        "name": "NORTHWEST TX INDEP SCH DIST REGD B/E PSF-GTD 5.00000000",
        "value": "5943491.92",
        "weight": "0.00169502",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA 5.0% 04-01-49",
        "value": "5943284.33",
        "weight": "0.00169496",
        "shared": true
      },
      {
        "name": "MTA HUDSON RAIL YRD-A",
        "value": "5915187.60",
        "weight": "0.00168694",
        "shared": false
      },
      {
        "name": "State of Connecticut 4.00% 01/15/2035",
        "value": "5831879.79",
        "weight": "0.00166319",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA 5.0% 09-01-31",
        "value": "5790890.04",
        "weight": "0.00165150",
        "shared": true
      },
      {
        "name": "UNIV CA REGENTS-CE",
        "value": "5762148.00",
        "weight": "0.00164330",
        "shared": false
      },
      {
        "name": "NY STATE UR D 5% 3/15/2036",
        "value": "5717835.33",
        "weight": "0.00163066",
        "shared": true
      },
      {
        "name": "NEW YORK ST DORM AUTH SALES TAX REVENUE",
        "value": "5653151.00",
        "weight": "0.00161221",
        "shared": false
      },
      {
        "name": "Highland Park Independent School District, Series 2024",
        "value": "5652881.50",
        "weight": "0.00161214",
        "shared": true
      },
      {
        "name": "PRIV CLGS & UNIVS AUTH GA",
        "value": "5649764.50",
        "weight": "0.00161125",
        "shared": true
      },
      {
        "name": "NYC WTR 5.25% 6/15/55",
        "value": "5648797.44",
        "weight": "0.00161097",
        "shared": true
      },
      {
        "name": "County of Wake, Series 2023A",
        "value": "5637036.50",
        "weight": "0.00160762",
        "shared": true
      },
      {
        "name": "ILLINOIS FN RV 5% 4/1/2034",
        "value": "5625975.00",
        "weight": "0.00160446",
        "shared": true
      },
      {
        "name": "NYC TRANSITIONAL-E-1",
        "value": "5593454.98",
        "weight": "0.00159519",
        "shared": false
      },
      {
        "name": "City of Alexandria",
        "value": "5562972.00",
        "weight": "0.00158650",
        "shared": false
      },
      {
        "name": "MA ST-A",
        "value": "5512595.16",
        "weight": "0.00157213",
        "shared": true
      },
      {
        "name": "State of California, Series 2024",
        "value": "5488290.50",
        "weight": "0.00156520",
        "shared": true
      },
      {
        "name": "State of Connecticut",
        "value": "5429632.50",
        "weight": "0.00154847",
        "shared": false
      },
      {
        "name": "UNIV OF CA REGENTS-BQ",
        "value": "5418403.20",
        "weight": "0.00154527",
        "shared": false
      },
      {
        "name": "WA ST-SER R-2023A-REF",
        "value": "5416578.04",
        "weight": "0.00154475",
        "shared": true
      },
      {
        "name": "OH TPK 5% 2/15/2046",
        "value": "5391978.28",
        "weight": "0.00153773",
        "shared": false
      },
      {
        "name": "Chicago Transit Authority, Series A",
        "value": "5346530.94",
        "weight": "0.00152477",
        "shared": true
      },
      {
        "name": "NEW YORK-D",
        "value": "5325888.75",
        "weight": "0.00151888",
        "shared": false
      },
      {
        "name": "GREAT LAKES WTR 5.25% 7/1/2047",
        "value": "5310881.06",
        "weight": "0.00151460",
        "shared": true
      },
      {
        "name": "WILLIAMSON CO-NTS",
        "value": "5302827.00",
        "weight": "0.00151231",
        "shared": false
      },
      {
        "name": "Texas Water Development Board, Series 2020",
        "value": "5301460.77",
        "weight": "0.00151192",
        "shared": false
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    ],
    "b_top": [
      {
        "name": "BLKR-LI MUNI-INS",
        "value": "242983297.79",
        "weight": "0.00564953",
        "shared": false
      },
      {
        "name": "UNIV OF TEXAS TX UNIV REVENUES UNIHGR 08/36 FIXED 5",
        "value": "90014038.63",
        "weight": "0.00209289",
        "shared": false
      },
      {
        "name": "Connecticut State Health & Educational Facilities Authority, Series 2017C-4",
        "value": "85000000.00",
        "weight": "0.00197631",
        "shared": false
      },
      {
        "name": "City of Atlanta Water & Wastewater, Series 2015",
        "value": "82282742.63",
        "weight": "0.00191313",
        "shared": true
      },
      {
        "name": "TX NWTSCD 5.25 02/15/2055",
        "value": "69469565.73",
        "weight": "0.00161521",
        "shared": false
      },
      {
        "name": "NYS TWY PIT 5% 3/15/2048",
        "value": "69237874.05",
        "weight": "0.00160983",
        "shared": true
      },
      {
        "name": "HOUSTON TX HGR EDU FIN CORP REGD N/C B/E 5.00000000",
        "value": "64910233.40",
        "weight": "0.00150921",
        "shared": true
      },
      {
        "name": "NY ST DORM AUTH PIT 20D SF 4.0% 02-15-47",
        "value": "60673678.11",
        "weight": "0.00141070",
        "shared": true
      },
      {
        "name": "OHIO ST UNIV REGD N/C B/E 5.00000000",
        "value": "59853495.00",
        "weight": "0.00139163",
        "shared": true
      },
      {
        "name": "STATE OF CALIFORNIA 5.0% 09-01-31",
        "value": "57721625.00",
        "weight": "0.00134207",
        "shared": true
      },
      {
        "name": "State of New Jersey, Series 2020A",
        "value": "57393987.08",
        "weight": "0.00133445",
        "shared": true
      },
      {
        "name": "WASHINGTON ST-R-2022",
        "value": "56388923.70",
        "weight": "0.00131108",
        "shared": false
      },
      {
        "name": "Pennsylvania Turnpike Commission, Series 2019-2",
        "value": "52715000.00",
        "weight": "0.00122566",
        "shared": false
      },
      {
        "name": "Chicago Transit Authority, Series A",
        "value": "51559865.00",
        "weight": "0.00119880",
        "shared": true
      },
      {
        "name": "NJ EDUCTNL FACS AUTH",
        "value": "50750927.89",
        "weight": "0.00117999",
        "shared": true
      },
      {
        "name": "Washoe County School District, Series 2017C",
        "value": "50701621.71",
        "weight": "0.00117885",
        "shared": false
      },
      {
        "name": "NJ NJSEDU 07/01/2064",
        "value": "50584806.00",
        "weight": "0.00117613",
        "shared": false
      },
      {
        "name": "E CO AWP JT PWRS-A-1",
        "value": "50433597.13",
        "weight": "0.00117262",
        "shared": true
      },
      {
        "name": "STATE OF CALIFORNIA 5.0% 10-01-36",
        "value": "49714072.80",
        "weight": "0.00115589",
        "shared": true
      },
      {
        "name": "State of Illinois, Series D",
        "value": "49472745.11",
        "weight": "0.00115028",
        "shared": true
      },
      {
        "name": "MASSACHUSETTS ST-B",
        "value": "48880005.15",
        "weight": "0.00113649",
        "shared": false
      },
      {
        "name": "District of Columbia, Series 2025A",
        "value": "48535124.40",
        "weight": "0.00112847",
        "shared": false
      },
      {
        "name": "NYC WTR 5.25% 6/15/2047",
        "value": "46900559.39",
        "weight": "0.00109047",
        "shared": false
      },
      {
        "name": "MA ST 5% 11/1/52",
        "value": "46850958.90",
        "weight": "0.00108932",
        "shared": true
      },
      {
        "name": "NEW YORK NY",
        "value": "46632124.06",
        "weight": "0.00108423",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST EDUCTNL FACS AUTH REVENUE",
        "value": "44655033.22",
        "weight": "0.00103826",
        "shared": true
      },
      {
        "name": "San Diego Unified School District, Series 2020D-2",
        "value": "44525588.74",
        "weight": "0.00103525",
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      },
      {
        "name": "Colorado Springs (City of), CO, Series 2024 A, RB",
        "value": "44190056.65",
        "weight": "0.00102745",
        "shared": false
      },
      {
        "name": "Triborough Bridge & Tunnel Authority, Series 2024A",
        "value": "41831145.85",
        "weight": "0.00097260",
        "shared": false
      },
      {
        "name": "NJ TRN FD CAB-SER C",
        "value": "41772555.00",
        "weight": "0.00097124",
        "shared": true
      },
      {
        "name": "Los Angeles Unified School District, Series 2020 RYQ, GO Bonds",
        "value": "41612943.74",
        "weight": "0.00096753",
        "shared": true
      },
      {
        "name": "UNIV OF CA REGENTS",
        "value": "41261032.09",
        "weight": "0.00095935",
        "shared": false
      },
      {
        "name": "NY ST UDC PIT REV 20A SF 4.0% 03-15-49",
        "value": "41113057.26",
        "weight": "0.00095591",
        "shared": true
      },
      {
        "name": "NYC WTR 5% 6/15/48",
        "value": "40539856.36",
        "weight": "0.00094258",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA CMWLTH",
        "value": "40532012.00",
        "weight": "0.00094240",
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      },
      {
        "name": "TRIBOROUGH NY BRIDGE   TUNNEL TRBTRN 05/51 FIXED 5",
        "value": "40465136.40",
        "weight": "0.00094084",
        "shared": true
      },
      {
        "name": "New York State Thruway Authority, Series 2021A-1",
        "value": "40194987.30",
        "weight": "0.00093456",
        "shared": false
      },
      {
        "name": "NY ST THRWY AUTH",
        "value": "40186948.00",
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      },
      {
        "name": "OH WTR DEV AUTH-C",
        "value": "40090000.00",
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      },
      {
        "name": "State of Maryland, Series 2023A",
        "value": "39801258.00",
        "weight": "0.00092541",
        "shared": true
      },
      {
        "name": "Metropolitan Government of Nashville & Davidson County, Series 2024B",
        "value": "39748070.60",
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      },
      {
        "name": "New York State Thruway Authority, Series 2025A",
        "value": "39711711.77",
        "weight": "0.00092332",
        "shared": false
      },
      {
        "name": "Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Variable Rate Series 2020",
        "value": "39250000.00",
        "weight": "0.00091259",
        "shared": false
      },
      {
        "name": "Maryland (State of) Stadium Authority (Baltimore City Public Schools), Series 2016, RB",
        "value": "38930691.25",
        "weight": "0.00090517",
        "shared": true
      },
      {
        "name": "New Orleans, Louisiana, General Obligation Bonds, Public Improvement Series 2024A",
        "value": "38431823.56",
        "weight": "0.00089357",
        "shared": false
      },
      {
        "name": "MA ST-A",
        "value": "38201589.27",
        "weight": "0.00088821",
        "shared": true
      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/2052",
        "value": "37926722.94",
        "weight": "0.00088182",
        "shared": true
      },
      {
        "name": "UNIV OF CA REGENTS",
        "value": "37879553.00",
        "weight": "0.00088073",
        "shared": false
      },
      {
        "name": "PROSPER TX INDEP SCH DIST REGD OID B/E PSF-GTD 4.00000000",
        "value": "37790322.40",
        "weight": "0.00087865",
        "shared": false
      },
      {
        "name": "Ector County, Texas, Certificates of Obligation, Series 2024",
        "value": "37460608.19",
        "weight": "0.00087098",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-050059",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1454889/000141036826050059/0001410368-26-050059-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "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"
    }
  ]
}