{
  "page": "compare",
  "query": {
    "a": "SHDAX",
    "b": "OSTAX"
  },
  "retrieved_at": "2026-07-07T17:11:18+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": "Western Asset Short Duration Municipal Income Fund",
    "ticker": "SHDAX",
    "slug": "SHDAX",
    "series_id": "S000016249",
    "html_url": "https://fundwatcher.app/funds/SHDAX/"
  },
  "fund_b": {
    "name": "JPMorgan Short-Intermediate Municipal Bond Fund",
    "ticker": "OSTAX",
    "slug": "OSTAX",
    "series_id": "S000003499",
    "html_url": "https://fundwatcher.app/funds/OSTAX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.03125836338168802587301803483",
    "coverage_b_by_a": "0.03125836338168802587301803483",
    "shared_count": 8,
    "as_of": {
      "a": "2026-02-27",
      "b": "2026-02-28"
    },
    "a_top": [
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        "name": "Indianapolis Local Public Improvement Bond Bank, Indiana, Airport Authority Project Revenue Bonds, Refunding Series 2019D",
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        "weight": "0.02591497",
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      },
      {
        "name": "State of Connecticut",
        "value": "7305354.48",
        "weight": "0.02524777",
        "shared": false
      },
      {
        "name": "DENVER CO ARPT 5% 12/1/2031 @",
        "value": "6951820.68",
        "weight": "0.02402594",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH PAYROLL MOBILITY TAX",
        "value": "6748267.86",
        "weight": "0.02332245",
        "shared": false
      },
      {
        "name": "New Jersey Transportation Trust Fund Authority",
        "value": "5561287.07",
        "weight": "0.01922017",
        "shared": false
      },
      {
        "name": "San Francisco City & County Airport Comm-San Francisco International Airport",
        "value": "5328437.61",
        "weight": "0.01841542",
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      },
      {
        "name": "LONG ISLAND PWR-B",
        "value": "5242145.12",
        "weight": "0.01811719",
        "shared": false
      },
      {
        "name": "NEW JERSEY ST ECON DEV AUTH MTR VEHCL SURCHARGE REVENUE",
        "value": "5163071.91",
        "weight": "0.01784391",
        "shared": false
      },
      {
        "name": "ST JOHN BAPTIST -B2",
        "value": "4950900.73",
        "weight": "0.01711063",
        "shared": false
      },
      {
        "name": "LOS ANGELES CA DEPT OF ARPTS ARPT REVENUE",
        "value": "4926931.88",
        "weight": "0.01702779",
        "shared": false
      },
      {
        "name": "FLORIDA INSURANCE ASSISTANCE INTERLOCAL AGY",
        "value": "4558692.15",
        "weight": "0.01575513",
        "shared": false
      },
      {
        "name": "State of Connecticut, Series A",
        "value": "4437392.31",
        "weight": "0.01533591",
        "shared": false
      },
      {
        "name": "DENTON TX ISD-SER B2",
        "value": "4386393.84",
        "weight": "0.01515966",
        "shared": false
      },
      {
        "name": "Chandler Industrial Development Authority, Series 2019",
        "value": "4069939.02",
        "weight": "0.01406597",
        "shared": false
      },
      {
        "name": "TEXAS ST MUNI GAS ACQUISITION& SPLY CORP III GAS SPLY REVEN",
        "value": "3897386.25",
        "weight": "0.01346962",
        "shared": false
      },
      {
        "name": "DENVER CO ARPT 5% 11/15/2027 @",
        "value": "3830946.05",
        "weight": "0.01324000",
        "shared": false
      },
      {
        "name": "LONG ISLAND PWR AUTH",
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        "weight": "0.01285980",
        "shared": false
      },
      {
        "name": "North Carolina Turnpike Authority 5.00% 01/01/2033",
        "value": "3675814.23",
        "weight": "0.01270385",
        "shared": false
      },
      {
        "name": "NY LSLPWR 09/01/2051",
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      },
      {
        "name": "State of Ohio",
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        "weight": "0.01259543",
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      {
        "name": "State of Texas",
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      {
        "name": "MTRO WA DC ARPT 5% 10/1/2030 @",
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        "weight": "0.01149561",
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      {
        "name": "PORT NY NJ 5% 10/15/2030 @",
        "value": "3324389.40",
        "weight": "0.01148930",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5% 10/1/2029 @",
        "value": "3310618.06",
        "weight": "0.01144171",
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      },
      {
        "name": "DENVER CITY & CNTY CO ARPT REV REGD N/C B/E AMT 5.00000000",
        "value": "3302865.01",
        "weight": "0.01141491",
        "shared": false
      },
      {
        "name": "Connecticut (State of) Health & Educational Facilities Authority, Series 1997, RB",
        "value": "3278610.30",
        "weight": "0.01133109",
        "shared": false
      },
      {
        "name": "Trimble (County of), KY (Louisville Gas & Electric), Series 2002 A, Ref. RB",
        "value": "3212928.23",
        "weight": "0.01110409",
        "shared": false
      },
      {
        "name": "TX DALAPT 11/01/2050",
        "value": "3187415.58",
        "weight": "0.01101591",
        "shared": true
      },
      {
        "name": "St. John the Baptist (Parish of), LA (Marathon Oil Corp.), Series 2017, Ref. RB",
        "value": "3078348.90",
        "weight": "0.01063897",
        "shared": true
      },
      {
        "name": "LOUISIANA ST OFFSHORE TERMINAL LOUISIANA OFFSHORE TERMINAL AUTHORITY",
        "value": "3056791.80",
        "weight": "0.01056447",
        "shared": false
      },
      {
        "name": "SAN ANTONIO TX ELEC & GAS REVENUE",
        "value": "3054888.90",
        "weight": "0.01055789",
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      },
      {
        "name": "State of Illinois, Series 2016",
        "value": "2712697.68",
        "weight": "0.00937526",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL AUTH PAYROLL MOBILITY TAX",
        "value": "2699145.25",
        "weight": "0.00932842",
        "shared": false
      },
      {
        "name": "SALT LAKE CITY UT ARPT REVENUE",
        "value": "2694505.00",
        "weight": "0.00931238",
        "shared": false
      },
      {
        "name": "N TX TOLLWAY AUTH REVENUE REGD N/C ZCP OID B/E AG 0.00000000",
        "value": "2680829.02",
        "weight": "0.00926512",
        "shared": false
      },
      {
        "name": "MISSOURI ST ENVRNMNTL IMPT & E REGD V/R B/E AMT 4.05000000",
        "value": "2609596.84",
        "weight": "0.00901893",
        "shared": false
      },
      {
        "name": "NJ TRN FD CAB-SER C",
        "value": "2585298.39",
        "weight": "0.00893496",
        "shared": false
      },
      {
        "name": "N TX HWY CABS-REF-1ST",
        "value": "2570334.91",
        "weight": "0.00888324",
        "shared": false
      },
      {
        "name": "TEXAS TRANSPORTATION VAR",
        "value": "2494767.75",
        "weight": "0.00862208",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "2482339.08",
        "weight": "0.00857912",
        "shared": false
      },
      {
        "name": "NJ TRN FD CAB-SER C",
        "value": "2428611.08",
        "weight": "0.00839344",
        "shared": false
      },
      {
        "name": "MARICOPA IDA AZ 5% 1/1/31",
        "value": "2342845.41",
        "weight": "0.00809702",
        "shared": false
      },
      {
        "name": "Southeast Alabama Gas Supply District/The",
        "value": "2341254.64",
        "weight": "0.00809153",
        "shared": false
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      {
        "name": "HUDSON YDS INFR 5% 2/15/35",
        "value": "2340569.14",
        "weight": "0.00808916",
        "shared": false
      },
      {
        "name": "State of Illinois, Series 2022A",
        "value": "2313294.94",
        "weight": "0.00799490",
        "shared": false
      },
      {
        "name": "MUSEUM ASSOCIATES (MPT) FRN 12-01-50",
        "value": "2282169.57",
        "weight": "0.00788732",
        "shared": false
      },
      {
        "name": "LOWER CO RIVER AUTH-B",
        "value": "2251439.00",
        "weight": "0.00778112",
        "shared": false
      },
      {
        "name": "NEW JERSEY ST ECON DEV AUTH NEW JERSEY ECONOMIC DEVELOPMENT AUTHORITY",
        "value": "2248957.13",
        "weight": "0.00777254",
        "shared": false
      },
      {
        "name": "PORT SEATTLE 5% 7/1/2029 @",
        "value": "2187924.22",
        "weight": "0.00756161",
        "shared": false
      },
      {
        "name": "Salem-Keizer School District No 24J",
        "value": "2181725.21",
        "weight": "0.00754018",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "JPMorgan Institutional Tax Free Money Market Fund, Class IM",
        "value": "44215312.34",
        "weight": "0.05325983",
        "shared": false
      },
      {
        "name": "WA ST HLTH CAR 5% 8/1/2049 MT",
        "value": "15016188.00",
        "weight": "0.01808784",
        "shared": false
      },
      {
        "name": "TAMPA BAY WTR-A-RF/IM",
        "value": "8990468.00",
        "weight": "0.01082952",
        "shared": false
      },
      {
        "name": "TX TMGUTL 01/01/2054",
        "value": "8391455.28",
        "weight": "0.01010798",
        "shared": false
      },
      {
        "name": "NORTH CAROLINA HSG FIN AGY HOM REGD B/E GNMA/FN 6.50000000",
        "value": "8174020.40",
        "weight": "0.00984607",
        "shared": false
      },
      {
        "name": "State of Ohio, Common School, Series 2023A",
        "value": "8161020.65",
        "weight": "0.00983041",
        "shared": false
      },
      {
        "name": "MO HLTH & EDU FACS AU",
        "value": "7916118.00",
        "weight": "0.00953541",
        "shared": false
      },
      {
        "name": "Comal Independent School District, Unlimited Tax",
        "value": "7567165.32",
        "weight": "0.00911508",
        "shared": false
      },
      {
        "name": "TX DALAPT 11/01/2050",
        "value": "7509826.10",
        "weight": "0.00904601",
        "shared": true
      },
      {
        "name": "Chicago Midway International Airport, Senior Lien, Series 2023C",
        "value": "7425379.07",
        "weight": "0.00894429",
        "shared": false
      },
      {
        "name": "TRIBOROUGH NY BRIDGE & TUNNEL REGD N/C B/E 5.00000000",
        "value": "7213754.10",
        "weight": "0.00868937",
        "shared": false
      },
      {
        "name": "STATE OF NEW YORK SALES TAX REVENUE 5.0% 03-15-30",
        "value": "6848563.37",
        "weight": "0.00824948",
        "shared": false
      },
      {
        "name": "TN TGYPWR 12/01/2051",
        "value": "6700954.00",
        "weight": "0.00807168",
        "shared": false
      },
      {
        "name": "Pennsylvania State, General Obligation Bonds, First Series 2024",
        "value": "6551650.19",
        "weight": "0.00789183",
        "shared": false
      },
      {
        "name": "INDIANA ST FIN AUTH ENVRNMNTL REGD B/E 1.40000000",
        "value": "6535848.90",
        "weight": "0.00787280",
        "shared": false
      },
      {
        "name": "SAN ANTONIO-B-REV-REF",
        "value": "6489772.80",
        "weight": "0.00781730",
        "shared": false
      },
      {
        "name": "CURATORS OF THE UNIV OF MISSOURI MO SYS FACS REVENUE",
        "value": "6419206.67",
        "weight": "0.00773230",
        "shared": false
      },
      {
        "name": "EQUITABLE SCHOOL REVOLVING FUND LLC OBLIGATED GROUP 5.0% 11-01-28",
        "value": "6320385.00",
        "weight": "0.00761326",
        "shared": false
      },
      {
        "name": "GRAND PKWY TRANSPRTN",
        "value": "6256365.00",
        "weight": "0.00753614",
        "shared": false
      },
      {
        "name": "NEW YORK ST DORM AUTH REVENUES NON ST SUPPORTED DEBT",
        "value": "6236019.64",
        "weight": "0.00751164",
        "shared": false
      },
      {
        "name": "MASSACHUSETTS ST DEV FIN AGY REVENUE",
        "value": "5979076.40",
        "weight": "0.00720213",
        "shared": false
      },
      {
        "name": "CYPRESS-FAIRBANKS ISD",
        "value": "5542957.57",
        "weight": "0.00667680",
        "shared": false
      },
      {
        "name": "Arizona (State of) Sports & Tourism Authority, Series 2022, Ref. RB",
        "value": "5514424.00",
        "weight": "0.00664243",
        "shared": false
      },
      {
        "name": "State of Connecticut, Series 2025D",
        "value": "5477475.00",
        "weight": "0.00659793",
        "shared": false
      },
      {
        "name": "Springfield (City of), IL, Series 2024, Ref. RB",
        "value": "5463960.00",
        "weight": "0.00658165",
        "shared": false
      },
      {
        "name": "Montgomery (County of), PA Industrial Development Authority (Constellation Energy Generation, LLC), Series 2023 B, Ref. RB",
        "value": "5455257.60",
        "weight": "0.00657116",
        "shared": false
      },
      {
        "name": "Health Educational and Housing Facility Board of the City of Memphis (The), Arbors Hickory Ridge Project, Series 2012",
        "value": "5439923.77",
        "weight": "0.00655269",
        "shared": false
      },
      {
        "name": "SOUTHCENTRL PA GEN AUTH REVENUE",
        "value": "5414915.50",
        "weight": "0.00652257",
        "shared": false
      },
      {
        "name": "NEW YORK ST DORM AUTH REVENUES NON ST SUPPORTED DEBT",
        "value": "5413936.46",
        "weight": "0.00652139",
        "shared": false
      },
      {
        "name": "NEW MEXICO ST FIN AUTH ST TRANSPRTN REVENUE",
        "value": "5405821.55",
        "weight": "0.00651162",
        "shared": false
      },
      {
        "name": "NJ TRANSPRTN-A-REF",
        "value": "5390006.77",
        "weight": "0.00649257",
        "shared": false
      },
      {
        "name": "Cypress-Fairbanks Independent School District, Unlimited Tax",
        "value": "5371258.68",
        "weight": "0.00646998",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5% 10/1/2028 @",
        "value": "5323577.00",
        "weight": "0.00641255",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY AUTH VAR",
        "value": "5254701.50",
        "weight": "0.00632958",
        "shared": false
      },
      {
        "name": "Cleveland County Educational Facilities Authority, Series 2021",
        "value": "5246117.52",
        "weight": "0.00631924",
        "shared": false
      },
      {
        "name": "ILLINOIS ST HSG DEV AUTH REVENUE",
        "value": "5226285.77",
        "weight": "0.00629536",
        "shared": false
      },
      {
        "name": "Port Authority of New York and New Jersey, Consolidated, Series 246",
        "value": "5182166.50",
        "weight": "0.00624221",
        "shared": false
      },
      {
        "name": "WASTE MANAGEMENT INC (MPT) 4.6% 10-01-46",
        "value": "5026765.50",
        "weight": "0.00605502",
        "shared": false
      },
      {
        "name": "NJ TRANSPRTN-A-REF 5 6/31",
        "value": "4783585.83",
        "weight": "0.00576210",
        "shared": false
      },
      {
        "name": "Pennsylvania (Commonwealth of), Series 2024, GO Bonds",
        "value": "4538641.20",
        "weight": "0.00546705",
        "shared": false
      },
      {
        "name": "Maricopa County Pollution Control Corp., Series A",
        "value": "4449649.95",
        "weight": "0.00535985",
        "shared": true
      },
      {
        "name": "State of Illinois, Series 2024B",
        "value": "4418507.87",
        "weight": "0.00532234",
        "shared": true
      },
      {
        "name": "County of Miami-Dade Water and Sewer System, Series 2025B",
        "value": "4391286.40",
        "weight": "0.00528955",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "4356486.00",
        "weight": "0.00524763",
        "shared": false
      },
      {
        "name": "HOUSTON TX UTILITY SYS REVENUE REGD N/C B/E 5.00000000",
        "value": "4348829.82",
        "weight": "0.00523841",
        "shared": false
      },
      {
        "name": "District of Columbia, Series 2025A",
        "value": "4333493.25",
        "weight": "0.00521994",
        "shared": false
      },
      {
        "name": "Metropolitan Council, Series 2021 C, GO Bonds",
        "value": "4303646.11",
        "weight": "0.00518398",
        "shared": false
      },
      {
        "name": "County of Miami-Dade Water and Sewer System, Series 2025B",
        "value": "4285552.80",
        "weight": "0.00516219",
        "shared": false
      },
      {
        "name": "IRVING ISD-REF",
        "value": "4231058.68",
        "weight": "0.00509655",
        "shared": false
      },
      {
        "name": "NORTH CAROLINA ST HSG FIN AGYM REGD V/R B/E 5.00000000",
        "value": "4221677.60",
        "weight": "0.00508525",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000940400-26-014617",
      "as_of": "2026-02-27",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/764624/000094040026014617/0000940400-26-014617-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0002071691-26-009306",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/763852/000207169126009306/0002071691-26-009306-index.htm"
    }
  ]
}