{
  "page": "compare",
  "query": {
    "a": "JMST",
    "b": "JMSI"
  },
  "retrieved_at": "2026-07-07T18:31:00+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": "JPMorgan Ultra-Short Municipal Income ETF",
    "ticker": "JMST",
    "slug": "JMST",
    "series_id": "S000063269",
    "html_url": "https://fundwatcher.app/funds/JMST/"
  },
  "fund_b": {
    "name": "JPMorgan Sustainable Municipal Income ETF",
    "ticker": "JMSI",
    "slug": "JMSI",
    "series_id": "S000079815",
    "html_url": "https://fundwatcher.app/funds/JMSI/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1088912722209152314956271859",
    "coverage_b_by_a": "0.1088912722209152314956271859",
    "shared_count": 6,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "JPMorgan Institutional Tax Free Money Market Fund, Class IM",
        "value": "820987514.18",
        "weight": "0.13433149",
        "shared": true
      },
      {
        "name": "NYC MUNI WTR FIN AUTH",
        "value": "65000000.00",
        "weight": "0.01063542",
        "shared": false
      },
      {
        "name": "WASHINGTON ST-R-2026A",
        "value": "58514028.03",
        "weight": "0.00957417",
        "shared": false
      },
      {
        "name": "State of Minnesota, Various Purpose, Series 2025D",
        "value": "50297402.52",
        "weight": "0.00822975",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH REVENUES",
        "value": "47593694.15",
        "weight": "0.00778737",
        "shared": false
      },
      {
        "name": "Township of Woodbridge",
        "value": "45378198.77",
        "weight": "0.00742486",
        "shared": false
      },
      {
        "name": "Maryland Health & Higher Educational Facilities Authority, Series 2025 C-1",
        "value": "45000000.00",
        "weight": "0.00736298",
        "shared": false
      },
      {
        "name": "Tarrant County Cultural Education Facilities Finance Corp., Series 2012, RB",
        "value": "42920000.00",
        "weight": "0.00702265",
        "shared": false
      },
      {
        "name": "County of Hamilton Sales Tax",
        "value": "42598229.52",
        "weight": "0.00697000",
        "shared": false
      },
      {
        "name": "NYC TRANSTNL-C6-VAR",
        "value": "40000000.00",
        "weight": "0.00654487",
        "shared": false
      },
      {
        "name": "HOUSTON TX UTILITY SYS REVENUE CITY OF HOUSTON TX COMBINED UTILITY SYSTEM REVENUE",
        "value": "40000000.00",
        "weight": "0.00654487",
        "shared": false
      },
      {
        "name": "NYC GEN OBLIG-A-4",
        "value": "40000000.00",
        "weight": "0.00654487",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
        "value": "40000000.00",
        "weight": "0.00654487",
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      },
      {
        "name": "City of Bristol",
        "value": "38046710.56",
        "weight": "0.00622527",
        "shared": false
      },
      {
        "name": "Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Variable Rate Series 2020",
        "value": "38000000.00",
        "weight": "0.00621763",
        "shared": false
      },
      {
        "name": "Township of Hamilton",
        "value": "37376308.50",
        "weight": "0.00611558",
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      {
        "name": "Township of Parsippany-Troy Hills",
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      },
      {
        "name": "Township of Livingston",
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      },
      {
        "name": "City of Hudson, Limited Tax",
        "value": "35781467.29",
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      },
      {
        "name": "SAINT LUCIE CNTY FL POLL CONTR COUNTY OF ST LUCIE FL",
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      },
      {
        "name": "NYC WTR-AA-2",
        "value": "35000000.00",
        "weight": "0.00572676",
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      },
      {
        "name": "Connecticut State, Special Tax Obligation Bonds, Transportation Infrastructure Purposes, Series 2025A",
        "value": "34624721.25",
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      {
        "name": "State of Louisiana, Series 2023 A-2",
        "value": "33900000.00",
        "weight": "0.00554678",
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      {
        "name": "San Antonio Water System, Subordinate Lien, Series 2024A",
        "value": "33300000.00",
        "weight": "0.00544861",
        "shared": false
      },
      {
        "name": "MICHIGAN ST BLDG AUTH REVENUE",
        "value": "33000000.00",
        "weight": "0.00539952",
        "shared": false
      },
      {
        "name": "Maine School Administrative District No. 51, Series 2025B",
        "value": "32920059.25",
        "weight": "0.00538644",
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      {
        "name": "COLORADO SPRINGS CO UTILITIES REVENUE",
        "value": "32400000.00",
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      },
      {
        "name": "Township of Teaneck",
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      {
        "name": "Clark County School District, Series 2025B",
        "value": "31595697.25",
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      {
        "name": "Spartanburg County School District No. 7",
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      {
        "name": "Township of Cherry Hill",
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      {
        "name": "City of Albany",
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        "weight": "0.00491276",
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      {
        "name": "VALDEZ AK MARINE TERMINAL REVE VALTRN 05/31 ADJUSTABLE VAR",
        "value": "30000000.00",
        "weight": "0.00490866",
        "shared": false
      },
      {
        "name": "DELAWARE VLY REG-B",
        "value": "30000000.00",
        "weight": "0.00490866",
        "shared": false
      },
      {
        "name": "TNDR OPT-FLTR-046",
        "value": "30000000.00",
        "weight": "0.00490866",
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      },
      {
        "name": "CALIFORNIA ST INFRASTRUCTURE & ECON DEV BANK REVENUE",
        "value": "28482275.85",
        "weight": "0.00466032",
        "shared": false
      },
      {
        "name": "COLORADO ST HLTH FACS AUTH REV REGD V/R B/E 2.65000000",
        "value": "28100000.00",
        "weight": "0.00459777",
        "shared": false
      },
      {
        "name": "JERSEY CITY NJ",
        "value": "26877169.34",
        "weight": "0.00439769",
        "shared": false
      },
      {
        "name": "Township of Edison",
        "value": "26172019.32",
        "weight": "0.00428231",
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      {
        "name": "Township of West Windsor",
        "value": "25969663.88",
        "weight": "0.00424920",
        "shared": false
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      {
        "name": "BLACK BELT ENERGY GAS FRN",
        "value": "25718728.94",
        "weight": "0.00420815",
        "shared": false
      },
      {
        "name": "Town of South Kingstown, Series 2025-1",
        "value": "25127257.50",
        "weight": "0.00411137",
        "shared": false
      },
      {
        "name": "Colorado (State of) Health Facilities Authority (Intermountain Healthcare), Series 2024, RB",
        "value": "25000000.00",
        "weight": "0.00409055",
        "shared": false
      },
      {
        "name": "Alaska Housing Finance Corp., Home Mortgage, Series 2007A",
        "value": "25000000.00",
        "weight": "0.00409055",
        "shared": false
      },
      {
        "name": "University of Colorado Hospital Authority, Series 2018, RB",
        "value": "25000000.00",
        "weight": "0.00409055",
        "shared": false
      },
      {
        "name": "City of Jacksonville, Health Care Facilities, Baptist Health",
        "value": "25000000.00",
        "weight": "0.00409055",
        "shared": false
      },
      {
        "name": "City of Sea Isle City",
        "value": "24931232.87",
        "weight": "0.00407929",
        "shared": false
      },
      {
        "name": "Connecticut Housing Finance Authority, Housing Mortgage Finance Program, Series 2025, Subseries C-3",
        "value": "24680000.00",
        "weight": "0.00403819",
        "shared": false
      },
      {
        "name": "MONMOUTH COUNTY IMPROVEMENT AUTHORITY/THE",
        "value": "24556398.70",
        "weight": "0.00401796",
        "shared": false
      },
      {
        "name": "City of Houston",
        "value": "23508318.31",
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        "shared": false
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    ],
    "b_top": [
      {
        "name": "JPMorgan Institutional Tax Free Money Market Fund, Class IM",
        "value": "39055222.90",
        "weight": "0.10423974",
        "shared": true
      },
      {
        "name": "NYC MUNI WTR FIN-BB",
        "value": "6500000.00",
        "weight": "0.01734873",
        "shared": false
      },
      {
        "name": "District of Columbia, Series 2025A",
        "value": "4911292.35",
        "weight": "0.01310841",
        "shared": false
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      {
        "name": "Texas Water Development Board, State Water Implementation Fund, Series 2019A",
        "value": "4316546.75",
        "weight": "0.01152101",
        "shared": false
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      {
        "name": "Peace River Manasota Regional Water Supply Authority, Utility System, Series 2025A",
        "value": "3847267.55",
        "weight": "0.01026849",
        "shared": false
      },
      {
        "name": "Philadelphia Authority for Industrial Development, City Service Agreement Rebuild Project, Series 2025A",
        "value": "3559284.90",
        "weight": "0.00949985",
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      },
      {
        "name": "City of Charlotte Water and Sewer System, Series 2022A",
        "value": "3359852.70",
        "weight": "0.00896756",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "3191829.86",
        "weight": "0.00851910",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH PAYROLL MOBILITY TAX",
        "value": "3056238.15",
        "weight": "0.00815721",
        "shared": false
      },
      {
        "name": "Nashville (City of) & Davidson (County of), TN Metropolitan Government, Series 2025, RB",
        "value": "2928220.50",
        "weight": "0.00781552",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH PAYROLL MOBILITY TAX",
        "value": "2720227.00",
        "weight": "0.00726038",
        "shared": false
      },
      {
        "name": "SOUTH CAROLINA ST JOBS-ECON DEV AUTH ECON DEV REVENUE",
        "value": "2455396.24",
        "weight": "0.00655354",
        "shared": false
      },
      {
        "name": "TX WTR DEV BRD",
        "value": "2388123.00",
        "weight": "0.00637398",
        "shared": false
      },
      {
        "name": "County of Okaloosa Water and Sewer",
        "value": "2367574.94",
        "weight": "0.00631914",
        "shared": false
      },
      {
        "name": "North Texas Municipal Water District Water System, Series 2025",
        "value": "2350957.20",
        "weight": "0.00627479",
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      },
      {
        "name": "Oklahoma Water Resources Board, Clean Water Program",
        "value": "2329407.40",
        "weight": "0.00621727",
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      },
      {
        "name": "DETROIT MI DET 05/39 FIXED 6",
        "value": "2321926.00",
        "weight": "0.00619730",
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      },
      {
        "name": "NASHVILLE CO WTR-REF",
        "value": "2306371.00",
        "weight": "0.00615578",
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      },
      {
        "name": "Douglasville-Douglas County Water and Sewer Authority",
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        "weight": "0.00610139",
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      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "2284650.95",
        "weight": "0.00609781",
        "shared": false
      },
      {
        "name": "LEE COUNTY INDU 5% MT",
        "value": "2281024.60",
        "weight": "0.00608813",
        "shared": false
      },
      {
        "name": "OHIO WTR DEV AUTH-A",
        "value": "2276295.80",
        "weight": "0.00607551",
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      },
      {
        "name": "TX TAREDU 11/15/2064",
        "value": "2258048.20",
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        "shared": false
      },
      {
        "name": "MI ST HSG DEV AUTH-C",
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      },
      {
        "name": "DT OF COLUMBIA-A-REF",
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      },
      {
        "name": "ARIZONA ST INDL DEV AUTH NATIONAL CHRT SCH REVOLVING LOAN FD",
        "value": "2235521.00",
        "weight": "0.00596668",
        "shared": false
      },
      {
        "name": "FLORIDA DEV FIN CORP HLTHCAREFACS REVENUE",
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        "weight": "0.00592680",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series F",
        "value": "2213290.40",
        "weight": "0.00590735",
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      },
      {
        "name": "California (State of) Community Choice Financing Authority (Clean Energy) (Green Bonds), Series 2024, RB",
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        "weight": "0.00581962",
        "shared": false
      },
      {
        "name": "CA CCEDEV 5 03/01/2036",
        "value": "2179497.40",
        "weight": "0.00581715",
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      },
      {
        "name": "OREGON ST FACS AUTH REVENUE",
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        "weight": "0.00580515",
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      },
      {
        "name": "COLORADO ST HSG & FIN AUTH",
        "value": "2142745.31",
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      },
      {
        "name": "VANCOUVER WA HSG AUTH",
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      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2025, RB",
        "value": "2115988.80",
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      },
      {
        "name": "MAIN STR NAT GA 4% MT",
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      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2023A",
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      {
        "name": "Oklahoma Water Resources Board, Clean Water Program, Series 2025A",
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      {
        "name": "CALIFORNIA ST INFRASTRUCTURE & REGD B/E 3.25000000",
        "value": "2049180.60",
        "weight": "0.00546933",
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      },
      {
        "name": "N TX MUNI WTR DIST REGL WSTWTR SYS CONTRACT REVENUE",
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        "weight": "0.00544755",
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      },
      {
        "name": "NY MTA TRANSP 5% 11/15/2033",
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      },
      {
        "name": "COLORADO ST HLTH FACS AUTH REV REGD B/E 4.00000000",
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      },
      {
        "name": "NY TRANS CORP 5% 6/30/2049 @",
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      },
      {
        "name": "Kings Local School District, Unlimited Tax",
        "value": "2017420.20",
        "weight": "0.00538456",
        "shared": true
      },
      {
        "name": "MONTGOMERY HGR EDU-B",
        "value": "2013166.40",
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      {
        "name": "NYC HSG 4.80% 2/1/2053",
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        "name": "Oklahoma Water Resources Board, State Loan Program, Series 2021D",
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      },
      {
        "name": "Missouri (State of) Environmental Improvement & Energy Resources Authority, Series 2015 B, Ref. RB",
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      },
      {
        "name": "LOMA LINDA UNIVERSITY MEDICAL CENTER OBLIGATED GROUP 5.25% 12-01-56",
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      },
      {
        "name": "FLORIDA HSG FIN CORP REVENUE REGD B/E GNMA/FN 6.25000000",
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      },
      {
        "name": "Great Lakes Water Authority Sewage Disposal System, Second Lien, Series 2025C",
        "value": "1954303.03",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-009312",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1485894/000207169126009312/0002071691-26-009312-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0002071691-26-009318",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1485894/000207169126009318/0002071691-26-009318-index.htm"
    }
  ]
}