{
  "page": "compare",
  "query": {
    "a": "TRMUX",
    "b": "FSMB"
  },
  "retrieved_at": "2026-07-07T17:32:51+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": "T. Rowe Price Maryland Short-Term Tax-Free Bond Fund",
    "ticker": "TRMUX",
    "slug": "TRMUX",
    "series_id": "S000002147",
    "html_url": "https://fundwatcher.app/funds/TRMUX/"
  },
  "fund_b": {
    "name": "First Trust Short Duration Managed Municipal ETF",
    "ticker": "FSMB",
    "slug": "FSMB",
    "series_id": "S000063445",
    "html_url": "https://fundwatcher.app/funds/FSMB/"
  },
  "overlap": {
    "coverage_a_by_b": "0.01723077759100755797029289803",
    "coverage_b_by_a": "0.01723077759100755797029289803",
    "shared_count": 4,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-04-30"
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      },
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        "name": "COUNTY OF BALTIMORE MD",
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      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "3606856.71",
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      {
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      {
        "name": "PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000",
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      },
      {
        "name": "State of Maryland Department of Transportation, Series 2017",
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      },
      {
        "name": "State of Maryland, Series 2017A",
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      {
        "name": "State of Maryland Department of Transportation, Series 2018",
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      {
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        "name": "MARYLAND ST HLTH & HGR EDUCTNL REGD V/R B/E 5.00000000",
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      },
      {
        "name": "State of Maryland Department of Transportation, Series 2025, RB",
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      {
        "name": "County of Prince George's, Series 2020B",
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      {
        "name": "COUNTY OF HOWARD MD",
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        "name": "County of Montgomery, Series 2017D",
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      {
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      {
        "name": "MARYLAND HLTH HGR-REF",
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      {
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        "name": "MARYLAND ST STA 5% 6/1/2026",
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        "name": "COUNTY OF BALTIMORE MD",
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      {
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        "weight": "0.01078761",
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      {
        "name": "MARYLAND ST STADIUM AUTH REVENUE",
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      },
      {
        "name": "UNIVERSITY SYSTEM OF MARYLAND",
        "value": "1928583.79",
        "weight": "0.01035601",
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      },
      {
        "name": "County of Baltimore, Series 2015",
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      {
        "name": "COUNTY OF CHARLES MD",
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      {
        "name": "STATE OF MARYLAND DEPARTMENT OF TRANSPORTATION",
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      {
        "name": "COUNTY OF CHARLES MD",
        "value": "1777144.22",
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      {
        "name": "MD CMNTY DEV-D-2",
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      {
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      {
        "name": "State of Maryland, Series 2018A",
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      {
        "name": "COUNTY OF PRINCE GEORGE'S MD",
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        "name": "MARYLAND DEPARTMENT OF HOUSING & COMMUNITY DEVELOPMENT",
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      {
        "name": "MARYLAND STATE TRANSPORTATION AUTHORITY",
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      {
        "name": "STATE OF MARYLAND DEPARTMENT OF TRANSPORTATION",
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      {
        "name": "State of Maryland, Series 2A",
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      {
        "name": "State of Maryland, Series 2025B",
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      {
        "name": "MARYLAND ECONOMIC DEVELOPMENT CORP",
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      {
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        "shared": false
      },
      {
        "name": "State of Maryland, Series 2020",
        "value": "1393150.12",
        "weight": "0.00748087",
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      {
        "name": "State of Maryland Department of Transportation, Series 2019",
        "value": "1390604.91",
        "weight": "0.00746720",
        "shared": false
      },
      {
        "name": "Montgomery (County of), MD, Series 2018 A, GO Bonds",
        "value": "1379604.53",
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      {
        "name": "MARYLAND COMMUNITY DEVELOPMENT ADMINISTRATION",
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    "b_top": [
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "6372370.20",
        "weight": "0.01078087",
        "shared": false
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      {
        "name": "County of Utah UT",
        "value": "5000000.00",
        "weight": "0.00845907",
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      {
        "name": "OH OHSDEV 11/01/2039",
        "value": "4805848.92",
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      {
        "name": "Wisconsin (State of) Public Finance Authority (Duke Energy Progress), Series 2022, Ref. RB",
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      {
        "name": "St. John the Baptist (Parish of), LA (Marathon Oil Corp.), Series 2017, Ref. RB",
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      {
        "name": "Main Street Energy, Inc., Series D",
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      {
        "name": "Palm Beach (County of), FL Health Facilities Authority (ACTS Retirement-Life Communities, Inc.), Series 2016, Ref. RB",
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      {
        "name": "NYC MUNI WTR FIN-BB",
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        "weight": "0.00592135",
        "shared": false
      },
      {
        "name": "Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2025A",
        "value": "3481712.58",
        "weight": "0.00589041",
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      {
        "name": "Black Belt Energy Gas District",
        "value": "3440432.23",
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      {
        "name": "BLACK BELT ENERGY GAS VAR",
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        "weight": "0.00578701",
        "shared": true
      },
      {
        "name": "NM MUNI ENERGY ACQ AU",
        "value": "3381642.53",
        "weight": "0.00572111",
        "shared": false
      },
      {
        "name": "NEW YORK ST HSG FIN AGY AFFORDABLE HSG REVENUE",
        "value": "3143053.75",
        "weight": "0.00531746",
        "shared": false
      },
      {
        "name": "LOS ANGELES CA DEPT OF ARPTS A REGD B/E AMT 5.00000000",
        "value": "3142415.10",
        "weight": "0.00531638",
        "shared": false
      },
      {
        "name": "ALLEGHENY HOSP DEV-A",
        "value": "3092031.90",
        "weight": "0.00523114",
        "shared": false
      },
      {
        "name": "WHITING IN ENVRNMNTL FACS REVE REGD V/R B/E AMT 5.00000000",
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      {
        "name": "MD CMNTY DEV-D-2",
        "value": "3035471.70",
        "weight": "0.00513545",
        "shared": true
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      {
        "name": "UNITED AIRLINES INC 4.0% 07-15-29",
        "value": "3018532.20",
        "weight": "0.00510680",
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      },
      {
        "name": "WASTE MANAGEMENT INC (MPT) 3.45% 11-01-44",
        "value": "3000298.80",
        "weight": "0.00507595",
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      },
      {
        "name": "NEW YORK NY REGD V/R B/E 2.65000000",
        "value": "3000000.00",
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      },
      {
        "name": "NORTH CAROLINA ST HSG FIN AGYM REGD V/R B/E 5.00000000",
        "value": "2906436.68",
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      {
        "name": "TX TMGUTL 01/01/2054",
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      },
      {
        "name": "FARM N MEX PCR 0% 6/1/2040 MT",
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      },
      {
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      {
        "name": "DFW ARPT 5% 11/1/2031 @",
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      {
        "name": "FLORIDA DEV FIN CORP HLTHCAREFACS REVENUE",
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      {
        "name": "City of Atlanta GA Department of Aviation",
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      {
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        "weight": "0.00435417",
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      {
        "name": "City of Philadelphia PA Airport Revenue",
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        "weight": "0.00434227",
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      {
        "name": "FAIRFAX C VA 5% 1/1/2045 MT",
        "value": "2555159.50",
        "weight": "0.00432286",
        "shared": false
      },
      {
        "name": "WASTE MANAGEMENT INC (MPT) 3.45% 10-01-41",
        "value": "2515175.25",
        "weight": "0.00425521",
        "shared": false
      },
      {
        "name": "NORTH BLOCK ASSOCIATES LLC HUD SECT 8 FHA 221(D)(4) (MPT) 3.4% 02-01-29",
        "value": "2511564.25",
        "weight": "0.00424910",
        "shared": false
      },
      {
        "name": "COUNTY OF TRIMBLE KY TRMENV 06/33 FIXED 3.75",
        "value": "2502465.75",
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        "shared": false
      },
      {
        "name": "ARKANSAS DEV FIN AUTH ENVIRONM REGD V/R B/E AMT 4.00000000",
        "value": "2495967.00",
        "weight": "0.00422271",
        "shared": false
      },
      {
        "name": "MOBILE PCR-VAR-AL PWR",
        "value": "2478086.00",
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      },
      {
        "name": "MTRO WA DC ARPT 5% 10/1/2031 @",
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      {
        "name": "LEHIGH PA_IDA 3% 9/1/2029",
        "value": "2450784.00",
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        "shared": false
      },
      {
        "name": "INDIANAPOLIS IN LOCAL PUBLIC I REGD N/C B/E AMT 5.00000000",
        "value": "2438325.30",
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      },
      {
        "name": "State of Illinois, Series C",
        "value": "2437731.08",
        "weight": "0.00412419",
        "shared": false
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      {
        "name": "NORTHWESTERN CORP 3.875% 07-01-28",
        "value": "2431955.57",
        "weight": "0.00411442",
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      {
        "name": "HOUSTON-UTL SYS-B-REF",
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        "shared": false
      },
      {
        "name": "DE ST EDA 3.60% 1/1/31",
        "value": "2419505.95",
        "weight": "0.00409335",
        "shared": false
      },
      {
        "name": "PEFA INC VAR",
        "value": "2408907.05",
        "weight": "0.00407542",
        "shared": false
      },
      {
        "name": "TENNERGY CORP TN GAS REVENUE TENNERGY CORP/TN",
        "value": "2384879.46",
        "weight": "0.00403477",
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      {
        "name": "NY TRANS CORP 5% 1/1/2032 @",
        "value": "2370014.59",
        "weight": "0.00400962",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-F",
        "value": "2355034.34",
        "weight": "0.00398428",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY AUTH VAR",
        "value": "2342301.03",
        "weight": "0.00396274",
        "shared": true
      },
      {
        "name": "South Carolina Jobs-Economic Development Authority, Series 2023A",
        "value": "2313365.26",
        "weight": "0.00391378",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5% 10/1/2035 @",
        "value": "2304524.08",
        "weight": "0.00389883",
        "shared": false
      },
      {
        "name": "NYC HSG DEV CORP-F-2A",
        "value": "2260772.92",
        "weight": "0.00382481",
        "shared": false
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001099263-26-004395",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/795384/000109926326004395/0001099263-26-004395-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000940400-26-025147",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1424212/000094040026025147/0000940400-26-025147-index.htm"
    }
  ]
}