{
  "page": "compare",
  "query": {
    "a": "IBMS",
    "b": "VTEC"
  },
  "retrieved_at": "2026-07-07T15:14:06+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 iBonds Dec 2030 Term Muni Bond ETF",
    "ticker": "IBMS",
    "slug": "IBMS",
    "series_id": "S000085095",
    "html_url": "https://fundwatcher.app/funds/IBMS/"
  },
  "fund_b": {
    "name": "VANGUARD CALIFORNIA TAX-EXEMPT BOND ETF",
    "ticker": "VTEC",
    "slug": "VTEC",
    "series_id": "S000083730",
    "html_url": "https://fundwatcher.app/funds/VTEC/"
  },
  "overlap": {
    "coverage_a_by_b": "0.01884273898685460817886071735",
    "coverage_b_by_a": "0.01884273898685460817886071736",
    "shared_count": 49,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "BLKR-LI MUNI-INS",
        "value": "1725764.27",
        "weight": "0.00675881",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD N/C B/E 5.00000000",
        "value": "1692671.09",
        "weight": "0.00662920",
        "shared": true
      },
      {
        "name": "CT HLTH & EDUCTNL-B-1",
        "value": "1607316.45",
        "weight": "0.00629492",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "1437961.95",
        "weight": "0.00563166",
        "shared": true
      },
      {
        "name": "NEW YORK NY",
        "value": "1270271.11",
        "weight": "0.00497491",
        "shared": false
      },
      {
        "name": "MORRIS CNTY NJ",
        "value": "1249228.37",
        "weight": "0.00489250",
        "shared": false
      },
      {
        "name": "State of Hawaii Airports System Revenue",
        "value": "1197920.90",
        "weight": "0.00469156",
        "shared": false
      },
      {
        "name": "State of New Jersey, Series 2020A",
        "value": "1135106.72",
        "weight": "0.00444555",
        "shared": false
      },
      {
        "name": "ALABAMA ST PUBLIC SCH & CLG AUTH",
        "value": "1132943.58",
        "weight": "0.00443708",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH PAYROLL MOBILITY TAX",
        "value": "926349.11",
        "weight": "0.00362797",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST-REF",
        "value": "872738.89",
        "weight": "0.00341801",
        "shared": true
      },
      {
        "name": "LOS ANGELES-E-REF",
        "value": "777713.93",
        "weight": "0.00304585",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "769785.20",
        "weight": "0.00301480",
        "shared": true
      },
      {
        "name": "State of California, Series 2019",
        "value": "766757.57",
        "weight": "0.00300294",
        "shared": true
      },
      {
        "name": "Duval County Public Schools, Series 2022A",
        "value": "741594.93",
        "weight": "0.00290439",
        "shared": false
      },
      {
        "name": "Rancho Santiago Community College District",
        "value": "727154.60",
        "weight": "0.00284784",
        "shared": false
      },
      {
        "name": "Metropolitan Transit Authority of Harris County Sales & Use Tax",
        "value": "723279.31",
        "weight": "0.00283266",
        "shared": false
      },
      {
        "name": "State of California, Series 2018, GO Bonds",
        "value": "723197.63",
        "weight": "0.00283234",
        "shared": true
      },
      {
        "name": "PRV COL and UNV GA 5% 9/1/2030",
        "value": "718252.01",
        "weight": "0.00281297",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST CLEAN WTR TRUST",
        "value": "709569.28",
        "weight": "0.00277897",
        "shared": false
      },
      {
        "name": "Honolulu (City & County of), HI (Honolulu Rail Transit), Series 2021, GO Bonds",
        "value": "703031.36",
        "weight": "0.00275336",
        "shared": false
      },
      {
        "name": "NYC TRANS FIN AUTH",
        "value": "692353.48",
        "weight": "0.00271154",
        "shared": false
      },
      {
        "name": "State of Maryland, Series 2020A-2",
        "value": "690389.28",
        "weight": "0.00270385",
        "shared": false
      },
      {
        "name": "CONROE TX INDEP SCH DIST",
        "value": "690038.25",
        "weight": "0.00270248",
        "shared": false
      },
      {
        "name": "BEVERLY HILLS USD CAB",
        "value": "688610.24",
        "weight": "0.00269688",
        "shared": true
      },
      {
        "name": "MASSACHUSETTS ST",
        "value": "680592.81",
        "weight": "0.00266548",
        "shared": false
      },
      {
        "name": "LOS ANGELES WTR-A-REF",
        "value": "679671.13",
        "weight": "0.00266187",
        "shared": true
      },
      {
        "name": "MET TRANSPRTN AUTH NY REVENUE",
        "value": "677057.19",
        "weight": "0.00265164",
        "shared": false
      },
      {
        "name": "IL ST TOLL HWY AUTH",
        "value": "675696.38",
        "weight": "0.00264631",
        "shared": false
      },
      {
        "name": "NEW YORK NY",
        "value": "673817.29",
        "weight": "0.00263895",
        "shared": false
      },
      {
        "name": "State of Connecticut, Series 2021A",
        "value": "658447.56",
        "weight": "0.00257875",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "641885.38",
        "weight": "0.00251389",
        "shared": true
      },
      {
        "name": "MANHATTAN BEACH CA UNIF SCH DIST",
        "value": "640964.32",
        "weight": "0.00251028",
        "shared": false
      },
      {
        "name": "State of Illinois, Series 2024B",
        "value": "640408.45",
        "weight": "0.00250811",
        "shared": false
      },
      {
        "name": "CORPUS CHRISTI TX",
        "value": "640092.73",
        "weight": "0.00250687",
        "shared": false
      },
      {
        "name": "IL ST TOLL HWY AUTH",
        "value": "611065.93",
        "weight": "0.00239319",
        "shared": false
      },
      {
        "name": "STATE OF ILLINOIS",
        "value": "609242.87",
        "weight": "0.00238605",
        "shared": false
      },
      {
        "name": "CENTRL FL EXPRESSWAY AUTH SR LIEN REVENUE",
        "value": "595250.95",
        "weight": "0.00233125",
        "shared": false
      },
      {
        "name": "DEL VALLE TX INDEP SCH DIST",
        "value": "592831.36",
        "weight": "0.00232177",
        "shared": false
      },
      {
        "name": "Hillsborough County School Board, Series 2018",
        "value": "590731.68",
        "weight": "0.00231355",
        "shared": false
      },
      {
        "name": "UTAH ST BLDG OWNERSHIP AUTH LEASE REVENUE",
        "value": "581475.77",
        "weight": "0.00227730",
        "shared": false
      },
      {
        "name": "NEW YORK ST DORM AUTH REVENUES NON ST SUPPORTED DEBT",
        "value": "581005.82",
        "weight": "0.00227546",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST-REF",
        "value": "576305.96",
        "weight": "0.00225705",
        "shared": false
      },
      {
        "name": "NY DORM AUTH-C-REF",
        "value": "575542.29",
        "weight": "0.00225406",
        "shared": false
      },
      {
        "name": "PALM BEACH SCH-A-COPS",
        "value": "570816.64",
        "weight": "0.00223555",
        "shared": false
      },
      {
        "name": "NEW YORK ST DORM AUTH REVENUES NON ST SUPPORTED DEBT",
        "value": "570687.77",
        "weight": "0.00223505",
        "shared": false
      },
      {
        "name": "MA ST-REF-A",
        "value": "560987.95",
        "weight": "0.00219706",
        "shared": false
      },
      {
        "name": "E-470 Public Highway Authority, Series B",
        "value": "558340.84",
        "weight": "0.00218669",
        "shared": false
      },
      {
        "name": "MET NASHVILLE TN ARPT AUTH ARPT REVENUE",
        "value": "556308.00",
        "weight": "0.00217873",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST SCH BLDG AUTH SALES TAX REVENUE",
        "value": "555539.90",
        "weight": "0.00217572",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "Southern California Public Power Authority, Series A",
        "value": "12900000.00",
        "weight": "0.00593245",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD N/C B/E 5.00000000",
        "value": "11969705.81",
        "weight": "0.00550462",
        "shared": false
      },
      {
        "name": "Bay Area Toll Authority, Series 2026A",
        "value": "11189454.08",
        "weight": "0.00514580",
        "shared": false
      },
      {
        "name": "Irvine Ranch Water District, Series 2009 A, VRD RB",
        "value": "7025000.00",
        "weight": "0.00323065",
        "shared": false
      },
      {
        "name": "LOS ANGELES UNIF SD-A",
        "value": "7016222.88",
        "weight": "0.00322662",
        "shared": false
      },
      {
        "name": "LOS ANGELES UNIF SD-A",
        "value": "7001515.58",
        "weight": "0.00321985",
        "shared": false
      },
      {
        "name": "Bay Area Toll Authority, Series 2023 A, VRD Ref. RB",
        "value": "6715000.00",
        "weight": "0.00308809",
        "shared": false
      },
      {
        "name": "LOS ANGELES UNIF SD-A",
        "value": "6498887.63",
        "weight": "0.00298870",
        "shared": false
      },
      {
        "name": "Los Angeles Department of Water & Power, Series 2025A",
        "value": "5915630.75",
        "weight": "0.00272048",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA 4.0% 03-01-36",
        "value": "5429087.77",
        "weight": "0.00249673",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD B/E 5.00000000",
        "value": "5398270.88",
        "weight": "0.00248255",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST EDUCTNL FACS AUTH REVENUE",
        "value": "5264772.16",
        "weight": "0.00242116",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD B/E 5.50000000",
        "value": "5181982.25",
        "weight": "0.00238309",
        "shared": false
      },
      {
        "name": "E CO AWP JT PWRS-A-1",
        "value": "5131980.25",
        "weight": "0.00236009",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA",
        "value": "5127317.08",
        "weight": "0.00235795",
        "shared": false
      },
      {
        "name": "SAN FRANCISCO USD",
        "value": "5004645.00",
        "weight": "0.00230153",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA",
        "value": "4867361.96",
        "weight": "0.00223840",
        "shared": false
      },
      {
        "name": "IRVINE CA IMPT BOND ACT 1915",
        "value": "4800000.00",
        "weight": "0.00220742",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "4611571.77",
        "weight": "0.00212077",
        "shared": true
      },
      {
        "name": "CALIFORNIA ST EDUCTNL",
        "value": "4248486.69",
        "weight": "0.00195379",
        "shared": false
      },
      {
        "name": "BAY AREA TOLL AUTHORITY FRN 04-01-55",
        "value": "4240000.00",
        "weight": "0.00194989",
        "shared": false
      },
      {
        "name": "LOS ANGELES DEPT-C",
        "value": "4196892.66",
        "weight": "0.00193006",
        "shared": true
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES",
        "value": "4183063.26",
        "weight": "0.00192370",
        "shared": false
      },
      {
        "name": "LOS ANGELES UNIF SD-A",
        "value": "4171519.58",
        "weight": "0.00191840",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "4160235.12",
        "weight": "0.00191321",
        "shared": false
      },
      {
        "name": "BAY AREA CA TOLL AUTH",
        "value": "4104719.55",
        "weight": "0.00188768",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD N/C B/E 5.00000000",
        "value": "4086396.19",
        "weight": "0.00187925",
        "shared": true
      },
      {
        "name": "IRVINE WTR-RF-A1-VAR",
        "value": "3800000.00",
        "weight": "0.00174754",
        "shared": false
      },
      {
        "name": "BAY AREA TOLL AUTHORI VAR",
        "value": "3710401.42",
        "weight": "0.00170634",
        "shared": false
      },
      {
        "name": "University of California, Series 2024 BW, Ref. RB",
        "value": "3699673.35",
        "weight": "0.00170140",
        "shared": false
      },
      {
        "name": "Toll Road Sr Lien Refunding RB Series 2021A",
        "value": "3677193.00",
        "weight": "0.00169107",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES",
        "value": "3638571.95",
        "weight": "0.00167330",
        "shared": false
      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Series 2017 B, RB",
        "value": "3636255.10",
        "weight": "0.00167224",
        "shared": false
      },
      {
        "name": "Anaheim Public Financing Authority, California, Lease Revenue Bonds, Public Improvement Project, Series 1997C",
        "value": "3614939.17",
        "weight": "0.00166244",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST EDUCTNL FACS AUTH REVENUE",
        "value": "3542279.25",
        "weight": "0.00162902",
        "shared": false
      },
      {
        "name": "State of California 5.00% 03/01/2055",
        "value": "3528920.95",
        "weight": "0.00162288",
        "shared": false
      },
      {
        "name": "Los Angeles (County of), CA Metropolitan Transportation Authority, Series 2024, GO Bonds",
        "value": "3523651.69",
        "weight": "0.00162046",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA 5.0% 10-01-35",
        "value": "3518668.50",
        "weight": "0.00161816",
        "shared": false
      },
      {
        "name": "LOS ANGELES UNIF SD-A",
        "value": "3498030.24",
        "weight": "0.00160867",
        "shared": false
      },
      {
        "name": "State of California",
        "value": "3451242.45",
        "weight": "0.00158716",
        "shared": true
      },
      {
        "name": "STATE OF CALIFORNIA 5.0% 04-01-29",
        "value": "3449275.88",
        "weight": "0.00158625",
        "shared": false
      },
      {
        "name": "State of California, Series 2007",
        "value": "3411058.83",
        "weight": "0.00156868",
        "shared": false
      },
      {
        "name": "LOS ANGELES DEPT-B",
        "value": "3326626.74",
        "weight": "0.00152985",
        "shared": false
      },
      {
        "name": "Los Angeles Unified School District, Series 2023QRR",
        "value": "3306085.12",
        "weight": "0.00152040",
        "shared": false
      },
      {
        "name": "Santa Monica Community College District, Series 2018A",
        "value": "3271269.27",
        "weight": "0.00150439",
        "shared": false
      },
      {
        "name": "State of California, Series 2025, GO Bonds",
        "value": "3254236.82",
        "weight": "0.00149656",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES REGD N/C B/E 5.25000000",
        "value": "3231820.82",
        "weight": "0.00148625",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA",
        "value": "3182681.10",
        "weight": "0.00146365",
        "shared": false
      },
      {
        "name": "UNIV OF CALIFORNIA CA REVENUES",
        "value": "3179630.71",
        "weight": "0.00146225",
        "shared": false
      },
      {
        "name": "Sacramento Municipal Utility District, Series 2025F",
        "value": "3103185.81",
        "weight": "0.00142709",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-031746",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000141036826031746/0001410368-26-031746-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000783401-26-000072",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/783401/000078340126000072/0000783401-26-000072-index.htm"
    }
  ]
}