{
  "page": "compare",
  "query": {
    "a": "RTECX",
    "b": "BBMUX"
  },
  "retrieved_at": "2026-07-07T19:28:53+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 Bond Fund",
    "ticker": "RTECX",
    "slug": "RTECX",
    "series_id": "S000001599",
    "html_url": "https://fundwatcher.app/funds/RTECX/"
  },
  "fund_b": {
    "name": "Bridge Builder Municipal Bond Fund",
    "ticker": "BBMUX",
    "slug": "BBMUX",
    "series_id": "S000050632",
    "html_url": "https://fundwatcher.app/funds/BBMUX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.2046844047654969507052210482",
    "coverage_b_by_a": "0.2046844047654969507052210484",
    "shared_count": 818,
    "as_of": {
      "a": "2026-04-30",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "RESTRUCTURED-SER A-2",
        "value": "60583347.62",
        "weight": "0.00930024",
        "shared": true
      },
      {
        "name": "WISCONSIN ST HLTH & EDUCTNL FACS AUTH REVENUE",
        "value": "42755000.00",
        "weight": "0.00656338",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 0% MT",
        "value": "36647402.40",
        "weight": "0.00562580",
        "shared": true
      },
      {
        "name": "EXXON MOBIL CORP FRN 08-01-35",
        "value": "35975000.00",
        "weight": "0.00552257",
        "shared": false
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024B",
        "value": "35685120.11",
        "weight": "0.00547807",
        "shared": true
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "33786623.17",
        "weight": "0.00518663",
        "shared": true
      },
      {
        "name": "California Community Choice Financing Authority, Series A-2",
        "value": "28627909.73",
        "weight": "0.00439471",
        "shared": true
      },
      {
        "name": "Energy Southeast Cooperative District, Alabama, Energy Supply Revenue Bonds, Series 2025B",
        "value": "28219933.20",
        "weight": "0.00433208",
        "shared": true
      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "27813012.79",
        "weight": "0.00426962",
        "shared": true
      },
      {
        "name": "SOUTHEAST ENERGY AUTH VAR",
        "value": "27306698.27",
        "weight": "0.00419189",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 5% 5/1/2055 MT",
        "value": "26203841.48",
        "weight": "0.00402259",
        "shared": true
      },
      {
        "name": "NYC TRANSITIONAL A-2",
        "value": "25475000.00",
        "weight": "0.00391070",
        "shared": false
      },
      {
        "name": "State of Colorado, Series B",
        "value": "25078304.25",
        "weight": "0.00384981",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District, Series B",
        "value": "24233754.98",
        "weight": "0.00372016",
        "shared": true
      },
      {
        "name": "FEDERAL HOME LOAN MTGE CORP MF VARIABLE RATE CTFS",
        "value": "21980731.50",
        "weight": "0.00337429",
        "shared": false
      },
      {
        "name": "STATE OF NEW JERSEY 0.0% 12-15-37",
        "value": "20751551.67",
        "weight": "0.00318560",
        "shared": false
      },
      {
        "name": "EXXON MOBIL CORP FRN 12-01-40",
        "value": "20630000.00",
        "weight": "0.00316694",
        "shared": false
      },
      {
        "name": "ILLINOIS ST HSG DEV AUTH REVENUE",
        "value": "20261387.76",
        "weight": "0.00311035",
        "shared": false
      },
      {
        "name": "SALES TAX SECURTZTN-C",
        "value": "20157186.66",
        "weight": "0.00309436",
        "shared": false
      },
      {
        "name": "MET TRANSPRTN-E3",
        "value": "19800000.00",
        "weight": "0.00303953",
        "shared": false
      },
      {
        "name": "TX ST MUNI GAS-C",
        "value": "19301333.84",
        "weight": "0.00296298",
        "shared": true
      },
      {
        "name": "CHICAGO ILLIN 6% 4/1/2046",
        "value": "18965288.19",
        "weight": "0.00291139",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR PUERTO RICO SALES TAX FINANCING CORP SALES TAX REV",
        "value": "17843371.95",
        "weight": "0.00273916",
        "shared": false
      },
      {
        "name": "NH NFADEV 11/20/2042",
        "value": "17803420.96",
        "weight": "0.00273303",
        "shared": true
      },
      {
        "name": "MN HSG FIN AGY-C",
        "value": "17101666.58",
        "weight": "0.00262530",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "16872615.15",
        "weight": "0.00259014",
        "shared": true
      },
      {
        "name": "TX TXSUTL 01/01/2055",
        "value": "16382723.76",
        "weight": "0.00251494",
        "shared": true
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB",
        "value": "16166300.55",
        "weight": "0.00248171",
        "shared": true
      },
      {
        "name": "MS BUS FIN-VAR-A-CHEV",
        "value": "16015000.00",
        "weight": "0.00245849",
        "shared": false
      },
      {
        "name": "FEDERAL HOME LOAN MTGE CORP MF VARIABLE RATE CTFS",
        "value": "15891963.62",
        "weight": "0.00243960",
        "shared": false
      },
      {
        "name": "TEXAS ST DEPT OF HSG & CMNTY AFFAIRS RESDL MTG REVENUE",
        "value": "15874544.80",
        "weight": "0.00243692",
        "shared": false
      },
      {
        "name": "MET TRANSPRTN-C-1",
        "value": "15778743.19",
        "weight": "0.00242222",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST ECON DEV FING AUTH UPMC REVENUE",
        "value": "15700000.00",
        "weight": "0.00241013",
        "shared": false
      },
      {
        "name": "CHICAGO IL BRD OF EDU CHIEDU 12/27 FIXED 5",
        "value": "15450093.90",
        "weight": "0.00237177",
        "shared": false
      },
      {
        "name": "Maricopa County Industrial Development Authority, Arizona, Hospital Revenue Bonds, Honor Health, Refunding Series 2024B",
        "value": "15310000.00",
        "weight": "0.00235026",
        "shared": false
      },
      {
        "name": "OT FEDMFH 08/25/2041",
        "value": "15267427.09",
        "weight": "0.00234372",
        "shared": true
      },
      {
        "name": "UNITED STATES VIRGIN ISLANDS FEDERAL EXCISE TAX 5.0% 10-01-27",
        "value": "15159788.64",
        "weight": "0.00232720",
        "shared": true
      },
      {
        "name": "PA BUTGEN 10/01/2034",
        "value": "15088698.67",
        "weight": "0.00231629",
        "shared": false
      },
      {
        "name": "BANNER HEALTH OBLIGATED GROUP (MPT) FRN 01-01-37",
        "value": "14778217.50",
        "weight": "0.00226863",
        "shared": false
      },
      {
        "name": "Chicago Park District",
        "value": "14707087.25",
        "weight": "0.00225771",
        "shared": true
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds, Cooperative District Energy Supply Series 2025B",
        "value": "14557959.62",
        "weight": "0.00223481",
        "shared": true
      },
      {
        "name": "NEW YORK NY CITY TRANSITIONAL FIN AUTH REV",
        "value": "14536803.13",
        "weight": "0.00223157",
        "shared": true
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "14433376.77",
        "weight": "0.00221569",
        "shared": true
      },
      {
        "name": "KING CNTY WA SWR REVENUE REGD V/R B/E 3.55000000",
        "value": "14160855.10",
        "weight": "0.00217385",
        "shared": true
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Clean Energy) (Green Bonds), Series 2024, RB",
        "value": "14123878.51",
        "weight": "0.00216818",
        "shared": true
      },
      {
        "name": "PA COASCD 5.25 11/15/2037",
        "value": "13926436.13",
        "weight": "0.00213787",
        "shared": true
      },
      {
        "name": "Minnesota Municipal Gas Agency",
        "value": "13769308.91",
        "weight": "0.00211375",
        "shared": true
      },
      {
        "name": "TX TXSUTL 5 04/01/2036",
        "value": "13711191.03",
        "weight": "0.00210482",
        "shared": false
      },
      {
        "name": "NORTH CAROLINA HSG FIN AGY HOM REGD B/E GNMA/FN 6.25000000",
        "value": "13642614.04",
        "weight": "0.00209430",
        "shared": false
      },
      {
        "name": "RESTRUCTURED-SER A-2-",
        "value": "13461222.16",
        "weight": "0.00206645",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "MONEY MARKET FUND",
        "value": "545327651.99",
        "weight": "0.02722540",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "125810856.47",
        "weight": "0.00628109",
        "shared": true
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024B",
        "value": "77739118.85",
        "weight": "0.00388111",
        "shared": true
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Clean Energy) (Green Bonds), Series 2024, RB",
        "value": "60407683.91",
        "weight": "0.00301584",
        "shared": false
      },
      {
        "name": "RESTRUCTURED-SER A-2",
        "value": "56416390.97",
        "weight": "0.00281658",
        "shared": true
      },
      {
        "name": "MIAMI-DADE CNTY FL AVIATION REVENUE",
        "value": "54821445.00",
        "weight": "0.00273695",
        "shared": false
      },
      {
        "name": "CHICAGO ILLIN 6% 4/1/2046",
        "value": "53594777.34",
        "weight": "0.00267571",
        "shared": true
      },
      {
        "name": "TN TNSUTL 5 12/01/2035",
        "value": "49781061.70",
        "weight": "0.00248531",
        "shared": true
      },
      {
        "name": "HARRIS CO CULTURAL-A",
        "value": "49155000.00",
        "weight": "0.00245406",
        "shared": false
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "46786941.80",
        "weight": "0.00233583",
        "shared": true
      },
      {
        "name": "TARRANT TX EDFC 5% 11/15/2051 MT",
        "value": "45149126.93",
        "weight": "0.00225406",
        "shared": false
      },
      {
        "name": "Main Street Energy, Inc., Series D",
        "value": "44787550.50",
        "weight": "0.00223601",
        "shared": true
      },
      {
        "name": "San Francisco City & County Airport Comm-San Francisco International Airport, Series C",
        "value": "44254876.00",
        "weight": "0.00220942",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 0% MT",
        "value": "43092735.00",
        "weight": "0.00215140",
        "shared": true
      },
      {
        "name": "LAS VEGAS VLY WTR DT",
        "value": "42478185.60",
        "weight": "0.00212072",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5% 7/1/46 @",
        "value": "42277936.74",
        "weight": "0.00211072",
        "shared": false
      },
      {
        "name": "Tender Option Bond Trust Receipts/Certificates",
        "value": "41802162.50",
        "weight": "0.00208697",
        "shared": true
      },
      {
        "name": "PORT PORT ARTHUR TEX NAV DIST MOTIVA ENTERPRISES-C",
        "value": "41365000.00",
        "weight": "0.00206514",
        "shared": false
      },
      {
        "name": "TX TXSUTL 01/01/2055",
        "value": "40261435.30",
        "weight": "0.00201005",
        "shared": true
      },
      {
        "name": "Southeast Alabama Gas Supply District (The), Series A",
        "value": "39946614.63",
        "weight": "0.00199433",
        "shared": true
      },
      {
        "name": "SOUTHEAST ALA PREP 5% MT",
        "value": "39722249.63",
        "weight": "0.00198313",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA(RCC) 5% 9/1/30MT 53",
        "value": "39672118.67",
        "weight": "0.00198062",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District, Series D",
        "value": "38355827.76",
        "weight": "0.00191491",
        "shared": false
      },
      {
        "name": "NH NFADEV 11/20/2042",
        "value": "38159213.41",
        "weight": "0.00190509",
        "shared": true
      },
      {
        "name": "UNIV CA REGENTS-CF",
        "value": "38069171.22",
        "weight": "0.00190060",
        "shared": false
      },
      {
        "name": "KENTUCKY ST PROPERTY & BLDGS C REGD N/C B/E 5.00000000",
        "value": "37006459.40",
        "weight": "0.00184754",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "36452844.08",
        "weight": "0.00181990",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 5% 5/1/2055 MT",
        "value": "36182034.56",
        "weight": "0.00180638",
        "shared": true
      },
      {
        "name": "PATRIOTS EN GRP 5.25% MT",
        "value": "35974874.69",
        "weight": "0.00179604",
        "shared": false
      },
      {
        "name": "MUNIBOND",
        "value": "35913978.66",
        "weight": "0.00179300",
        "shared": false
      },
      {
        "name": "TN TNSUTL 5 11/01/2034",
        "value": "34946457.35",
        "weight": "0.00174470",
        "shared": false
      },
      {
        "name": "NE CENPWR 08/01/2055",
        "value": "34921508.42",
        "weight": "0.00174345",
        "shared": true
      },
      {
        "name": "Black Belt Energy Gas District, Series F",
        "value": "34847183.21",
        "weight": "0.00173974",
        "shared": true
      },
      {
        "name": "LOWER AL GAS DT-A-REF",
        "value": "34796160.71",
        "weight": "0.00173719",
        "shared": false
      },
      {
        "name": "TX TAREDU 11/15/2064",
        "value": "34650779.04",
        "weight": "0.00172994",
        "shared": true
      },
      {
        "name": "Southeast Energy Authority, Alabama, A Cooperative District Energy Supply Revenue Bonds Series 2024A",
        "value": "33951173.12",
        "weight": "0.00169501",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "32539670.78",
        "weight": "0.00162454",
        "shared": true
      },
      {
        "name": "SOUTHEAST ENERGY-D",
        "value": "32427279.93",
        "weight": "0.00161893",
        "shared": false
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2025A",
        "value": "32356932.41",
        "weight": "0.00161542",
        "shared": true
      },
      {
        "name": "ILLINOIS ST REGD B/E 5.00000000",
        "value": "31995900.00",
        "weight": "0.00159739",
        "shared": false
      },
      {
        "name": "PREREF CALIFORNIA HSG FIN AGY LTD OBL REGD V/R B/E PREREFUNDED 06/01/26 @ 100 3.60000000",
        "value": "31799001.48",
        "weight": "0.00158756",
        "shared": false
      },
      {
        "name": "ARKANSAS DEV FIN AUTH ENVIRONM REGD V/R B/E AMT 4.00000000",
        "value": "30710500.88",
        "weight": "0.00153322",
        "shared": true
      },
      {
        "name": "NJ EDA REV 5.25% 9/1/26",
        "value": "30335037.00",
        "weight": "0.00151447",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District",
        "value": "30244956.85",
        "weight": "0.00150998",
        "shared": true
      },
      {
        "name": "Tarrant County Cultural Education Facilities Finance Corp.",
        "value": "30000000.00",
        "weight": "0.00149775",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority",
        "value": "29451561.86",
        "weight": "0.00147036",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series C",
        "value": "29085550.93",
        "weight": "0.00145209",
        "shared": true
      },
      {
        "name": "S E ENERGY-B-REV",
        "value": "29020666.26",
        "weight": "0.00144885",
        "shared": true
      },
      {
        "name": "NEW JERSEY ST HLTH CARE FACS F REGD N/C B/E 5.00000000",
        "value": "28419954.15",
        "weight": "0.00141886",
        "shared": false
      },
      {
        "name": "TX TRANSPRTN FIN-A",
        "value": "27933188.69",
        "weight": "0.00139456",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-063600",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/351601/000141036826063600/0001410368-26-063600-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001003715-26-001898",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1567101/000100371526001898/0001003715-26-001898-index.htm"
    }
  ]
}