{
  "page": "compare",
  "query": {
    "a": "ATFSX",
    "b": "VWSTX"
  },
  "retrieved_at": "2026-07-07T17:49:59+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": "Invesco Limited Term Municipal Income Fund",
    "ticker": "ATFSX",
    "slug": "ATFSX",
    "series_id": "S000000172",
    "html_url": "https://fundwatcher.app/funds/ATFSX/"
  },
  "fund_b": {
    "name": "VANGUARD ULTRA-SHORT-TERM TAX-EXEMPT FUND",
    "ticker": "VWSTX",
    "slug": "VWSTX",
    "series_id": "S000002897",
    "html_url": "https://fundwatcher.app/funds/VWSTX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.06119968019732523926528148643",
    "coverage_b_by_a": "0.06119968019732523926528148641",
    "shared_count": 60,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "City of Atlanta Water & Wastewater, Series 2015",
        "value": "25463558.96",
        "weight": "0.00939716",
        "shared": false
      },
      {
        "name": "PEFA INC VAR",
        "value": "25397121.78",
        "weight": "0.00937264",
        "shared": false
      },
      {
        "name": "MUNIBOND",
        "value": "23116346.73",
        "weight": "0.00853094",
        "shared": true
      },
      {
        "name": "OMAHA PUBLIC POWER DISTRICT (TOBS)",
        "value": "22617115.40",
        "weight": "0.00834670",
        "shared": false
      },
      {
        "name": "WASHINGTON ST HLTH CARE FACS A WASHINGTON HEALTH CARE FACILITIES AUTHORITY",
        "value": "21664715.51",
        "weight": "0.00799522",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "21299761.08",
        "weight": "0.00786054",
        "shared": true
      },
      {
        "name": "TN METHGR 5 07/01/2035",
        "value": "20468083.39",
        "weight": "0.00755361",
        "shared": false
      },
      {
        "name": "Tarrant County Cultural Education Facilities Finance Corp. (Texas Health Resources System), Series 2016 A, Ref. RB",
        "value": "19982917.53",
        "weight": "0.00737457",
        "shared": false
      },
      {
        "name": "HOUUTL 5 11/15/2036",
        "value": "19760308.51",
        "weight": "0.00729241",
        "shared": false
      },
      {
        "name": "KS ST DEV FIN 5% 11/15/2054",
        "value": "19618508.01",
        "weight": "0.00724008",
        "shared": false
      },
      {
        "name": "NYC HSG DEV CORP-F-2B",
        "value": "18011728.47",
        "weight": "0.00664711",
        "shared": true
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024A-1",
        "value": "16509231.00",
        "weight": "0.00609263",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 0% 8/1/2052",
        "value": "16390248.88",
        "weight": "0.00604872",
        "shared": false
      },
      {
        "name": "OHIO ST UNIV-D-1-REF",
        "value": "15840000.00",
        "weight": "0.00584565",
        "shared": false
      },
      {
        "name": "NYC GO FY21-2 Q=SELF V8+",
        "value": "15000000.00",
        "weight": "0.00553565",
        "shared": false
      },
      {
        "name": "NORTH CAROLINA ST-REF",
        "value": "14096056.00",
        "weight": "0.00520206",
        "shared": false
      },
      {
        "name": "Nuveen California AMT-Free Quality Municipal Income Fund, Series A",
        "value": "13800000.00",
        "weight": "0.00509280",
        "shared": true
      },
      {
        "name": "TNDR OPT-FLTRS-XF3310",
        "value": "13460000.00",
        "weight": "0.00496733",
        "shared": false
      },
      {
        "name": "WHITING IN ENVRNMNTL FACS REVE WHGFAC 06/44 ADJUSTABLE VAR",
        "value": "13436620.16",
        "weight": "0.00495870",
        "shared": false
      },
      {
        "name": "Mesa (City of), AZ, Series 2014, RB",
        "value": "13356373.29",
        "weight": "0.00492908",
        "shared": false
      },
      {
        "name": "WISCONSIN ST HLTH & EDUCTNL FA WISCONSIN HEALTH & EDUCATIONAL FACILITIES AUTHORIT",
        "value": "13319471.84",
        "weight": "0.00491547",
        "shared": true
      },
      {
        "name": "Black Belt Energy Gas District (The), Series 2022 B-1, RB",
        "value": "13196122.52",
        "weight": "0.00486994",
        "shared": true
      },
      {
        "name": "District of Columbia Water & Sewer Authority, Series 2024 B, Ref. VRD RB",
        "value": "13100000.00",
        "weight": "0.00483447",
        "shared": false
      },
      {
        "name": "NEW YORK NY REGD V/R B/E 2.55000000",
        "value": "13000000.00",
        "weight": "0.00479757",
        "shared": false
      },
      {
        "name": "Tennessee (State of), Series 2023 A, GO Bonds",
        "value": "12976644.35",
        "weight": "0.00478895",
        "shared": false
      },
      {
        "name": "NYS HSG FIN AGY-B-2",
        "value": "12823187.20",
        "weight": "0.00473231",
        "shared": true
      },
      {
        "name": "BLACK BELT ENER VAR MT",
        "value": "12628847.92",
        "weight": "0.00466059",
        "shared": true
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2025A",
        "value": "12433131.85",
        "weight": "0.00458837",
        "shared": true
      },
      {
        "name": "STATE OF ILLINOIS MCCORMICK PLACE EXPANSION PROJECT FUND NATL 0.0% 12-15-32",
        "value": "12217173.00",
        "weight": "0.00450867",
        "shared": false
      },
      {
        "name": "HOUSTON-UTL SYS-B-REF",
        "value": "12191182.80",
        "weight": "0.00449908",
        "shared": false
      },
      {
        "name": "NUVEEN AMT-FREE QUALITY MUNICIPAL INCOME FUND",
        "value": "12000000.00",
        "weight": "0.00442852",
        "shared": true
      },
      {
        "name": "PRT ARTHR TX MTVA10E Q=SELF V7",
        "value": "11825000.00",
        "weight": "0.00436394",
        "shared": false
      },
      {
        "name": "Washington Suburban Sanitary District, Montgomery and Prince George's Counties, Maryland, General Obligation Bonds, Multi-Modal Bond Anticipation Note",
        "value": "11755000.00",
        "weight": "0.00433811",
        "shared": false
      },
      {
        "name": "SUFFOLK TOB NY 4% 6/1/2050",
        "value": "11482094.50",
        "weight": "0.00423739",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-D",
        "value": "11209567.00",
        "weight": "0.00413682",
        "shared": false
      },
      {
        "name": "MBTA SLS TAX 0% 7/1/2031",
        "value": "11209178.50",
        "weight": "0.00413668",
        "shared": false
      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2018, RB",
        "value": "11184198.30",
        "weight": "0.00412746",
        "shared": false
      },
      {
        "name": "LAMAR CONSOL INDEP SD",
        "value": "11153575.40",
        "weight": "0.00411616",
        "shared": false
      },
      {
        "name": "PREREF IOWA ST FIN AUTH MIDWSTRN DISA REGD V/R B/E PREREFUNDED 12/01/32 @ 100 4.00000000",
        "value": "11054193.00",
        "weight": "0.00407948",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "10960216.00",
        "weight": "0.00404480",
        "shared": false
      },
      {
        "name": "UNIV OF WASHINGTON WA UNIV REV REGD B/E 5.25000000",
        "value": "10949080.03",
        "weight": "0.00404069",
        "shared": false
      },
      {
        "name": "New Jersey Transportation Trust Fund Authority, Transportation System, Series 2019A",
        "value": "10757364.75",
        "weight": "0.00396994",
        "shared": false
      },
      {
        "name": "TOBACCO SETTLEMENT FING CORP R TOBGEN 06/50 FIXED 5",
        "value": "10324236.98",
        "weight": "0.00381009",
        "shared": false
      },
      {
        "name": "Miami-Dade (County of), FL, Series 2016 A, Ref. RB",
        "value": "10236870.94",
        "weight": "0.00377785",
        "shared": false
      },
      {
        "name": "NH NFADEV 10/01/2051",
        "value": "10216940.08",
        "weight": "0.00377050",
        "shared": false
      },
      {
        "name": "Ohio (State of) Air Quality Development Authority (Duke Energy Corp.), Series 2022 B, Ref. RB",
        "value": "10165392.00",
        "weight": "0.00375147",
        "shared": true
      },
      {
        "name": "Miami-Dade (County of), FL Expressway Authority, Series 2010 A, RB",
        "value": "10154822.65",
        "weight": "0.00374757",
        "shared": false
      },
      {
        "name": "TOB SETTLEMT FING-B",
        "value": "10134728.38",
        "weight": "0.00374016",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST HLTH FACS FING AUTH REVENUE",
        "value": "10115268.00",
        "weight": "0.00373297",
        "shared": false
      },
      {
        "name": "IN MUNI PWR AGY-A-REF",
        "value": "10053954.00",
        "weight": "0.00371035",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "Vanguard Municipal Cash Management Fund",
        "value": "387237442.55",
        "weight": "0.02205110",
        "shared": false
      },
      {
        "name": "NUVEEN AMT-FREE MUNI",
        "value": "219000000.00",
        "weight": "0.01247088",
        "shared": false
      },
      {
        "name": "MUNIBOND",
        "value": "192117194.49",
        "weight": "0.01094005",
        "shared": true
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2025A",
        "value": "157853686.71",
        "weight": "0.00898892",
        "shared": true
      },
      {
        "name": "MUNIBOND",
        "value": "139132943.36",
        "weight": "0.00792288",
        "shared": true
      },
      {
        "name": "CA STWD CMNTYS DEV-A",
        "value": "131848979.50",
        "weight": "0.00750809",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 4% 3/1/2050",
        "value": "131354502.91",
        "weight": "0.00747994",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 D, RB",
        "value": "112343208.94",
        "weight": "0.00639734",
        "shared": false
      },
      {
        "name": "NUVEEN AMT-FREE QUALITY MUNICIPAL INCOME FUND",
        "value": "110740000.00",
        "weight": "0.00630605",
        "shared": true
      },
      {
        "name": "KY PUB ENERGY AUTH-A",
        "value": "110005651.60",
        "weight": "0.00626423",
        "shared": false
      },
      {
        "name": "HARRIS ED-VAR-REF-C-1",
        "value": "105400000.00",
        "weight": "0.00600197",
        "shared": false
      },
      {
        "name": "Nuveen AMT-Free Municipal Credit Income Fund",
        "value": "103700000.00",
        "weight": "0.00590516",
        "shared": false
      },
      {
        "name": "NY NY CITY HS(NEW YORK MHSG) 3.25% 2/1/30 MT 65",
        "value": "101937356.33",
        "weight": "0.00580479",
        "shared": false
      },
      {
        "name": "ALLGNY CNTY HDA 0% 11/15/2047",
        "value": "98805654.50",
        "weight": "0.00562645",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 4% MT",
        "value": "94421463.00",
        "weight": "0.00537680",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "92801898.76",
        "weight": "0.00528457",
        "shared": true
      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "86570697.21",
        "weight": "0.00492974",
        "shared": true
      },
      {
        "name": "WI HLTH & EDUCTL-C",
        "value": "78000000.00",
        "weight": "0.00444168",
        "shared": false
      },
      {
        "name": "MN MUNI GAS AGY-A",
        "value": "76038172.70",
        "weight": "0.00432997",
        "shared": false
      },
      {
        "name": "ILLINOIS ST FIN AUTH REVENUE ILLINOIS FINANCE AUTHORITY",
        "value": "73050000.00",
        "weight": "0.00415981",
        "shared": false
      },
      {
        "name": "City of San Antonio TX",
        "value": "72994026.33",
        "weight": "0.00415662",
        "shared": false
      },
      {
        "name": "NY ST HSG FIN AGY D-2",
        "value": "72813523.91",
        "weight": "0.00414634",
        "shared": false
      },
      {
        "name": "NY ST HSG FIN AGY-C-2",
        "value": "72325562.35",
        "weight": "0.00411855",
        "shared": false
      },
      {
        "name": "LOS ANGELES DEPT-C",
        "value": "72314581.64",
        "weight": "0.00411793",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District (The), Series 2022 B-1, RB",
        "value": "69175857.47",
        "weight": "0.00393919",
        "shared": true
      },
      {
        "name": "BLACK BELT ENER VAR MT",
        "value": "68167609.97",
        "weight": "0.00388178",
        "shared": true
      },
      {
        "name": "CALIFORNIA ST HLTH FACS FING AUTH REVENUE",
        "value": "67714576.28",
        "weight": "0.00385598",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
        "value": "66548122.30",
        "weight": "0.00378956",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS VAR",
        "value": "66325036.79",
        "weight": "0.00377686",
        "shared": false
      },
      {
        "name": "TNDR OPT-FLTRS-XG0404",
        "value": "65900000.00",
        "weight": "0.00375265",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "62858630.02",
        "weight": "0.00357946",
        "shared": false
      },
      {
        "name": "HORSEHEADS CSD-BANS",
        "value": "61864682.70",
        "weight": "0.00352286",
        "shared": false
      },
      {
        "name": "PA ECON DEV FIN AUTH",
        "value": "59939916.00",
        "weight": "0.00341326",
        "shared": false
      },
      {
        "name": "MN MUNI GAS AUTH-B",
        "value": "59510785.09",
        "weight": "0.00338882",
        "shared": false
      },
      {
        "name": "JPM-PUTTERS-5099",
        "value": "59330000.00",
        "weight": "0.00337853",
        "shared": false
      },
      {
        "name": "PASADENA TX ISD 1.54% MT",
        "value": "58101474.16",
        "weight": "0.00330857",
        "shared": false
      },
      {
        "name": "TN TGYPWR 12/01/2051",
        "value": "57239112.25",
        "weight": "0.00325946",
        "shared": false
      },
      {
        "name": "TNDR OPT-FLTRS-008",
        "value": "55455000.01",
        "weight": "0.00315787",
        "shared": false
      },
      {
        "name": "NY ST HSG FIN AGY-D2",
        "value": "55400884.89",
        "weight": "0.00315478",
        "shared": false
      },
      {
        "name": "Nuveen AMT-Free Municipal Credit Income Fund, Series B",
        "value": "55315000.00",
        "weight": "0.00314989",
        "shared": true
      },
      {
        "name": "TARRANT TX EDFC 5% MT",
        "value": "54189940.00",
        "weight": "0.00308583",
        "shared": false
      },
      {
        "name": "NEW YORK ST DORM AUTH REVENUES NON ST SUPPORTED DEBT",
        "value": "54109302.68",
        "weight": "0.00308124",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series B-1",
        "value": "52859092.90",
        "weight": "0.00301004",
        "shared": false
      },
      {
        "name": "Energy Southeast Cooperative District, Alabama, Energy Supply Revenue Bonds, Series 2025B",
        "value": "52718285.04",
        "weight": "0.00300202",
        "shared": false
      },
      {
        "name": "TNDR OPT-FLTR-MS0041",
        "value": "52500000.00",
        "weight": "0.00298959",
        "shared": false
      },
      {
        "name": "GA WELLSTAR HLTH 25A L=BA V7",
        "value": "52220000.00",
        "weight": "0.00297365",
        "shared": false
      },
      {
        "name": "TN TNSUTL 05/01/2053",
        "value": "51471172.02",
        "weight": "0.00293101",
        "shared": false
      },
      {
        "name": "Harris County Cultural Education Facilities Finance Corporation, Texas, Revenue Bonds, Houston Methodist Hospital System, Series 2025F",
        "value": "50000000.00",
        "weight": "0.00284723",
        "shared": false
      },
      {
        "name": "Metropolitan Government of Nashville & Davidson County TN",
        "value": "49999915.00",
        "weight": "0.00284723",
        "shared": false
      },
      {
        "name": "TENNERGY CORP TN GAS REVENUE TENNERGY CORP/TN",
        "value": "49807353.53",
        "weight": "0.00283626",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000909466-26-000154",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/909466/000090946626000154/0000909466-26-000154-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000225997-26-000121",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/225997/000022599726000121/0000225997-26-000121-index.htm"
    }
  ]
}