{
  "page": "compare",
  "query": {
    "a": "PRIMX",
    "b": "ATTYX"
  },
  "retrieved_at": "2026-07-07T15:55:19+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 Summit Municipal Income Fund",
    "ticker": "PRIMX",
    "slug": "PRIMX",
    "series_id": "S000002157",
    "html_url": "https://fundwatcher.app/funds/PRIMX/"
  },
  "fund_b": {
    "name": "AB Tax-Aware Fixed Income Opportunities Portfolio",
    "ticker": "ATTYX",
    "slug": "ATTYX",
    "series_id": "S000043269",
    "html_url": "https://fundwatcher.app/funds/ATTYX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.08453067553917630296211766871",
    "coverage_b_by_a": "0.08453067553917630296211766871",
    "shared_count": 83,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 4.75000000",
        "value": "25243639.90",
        "weight": "0.00899545",
        "shared": false
      },
      {
        "name": "Tarrant County Cultural Education Facilities Finance Corp., Methodist Hospitals of Dallas Project, Series 2008-A",
        "value": "23900000.00",
        "weight": "0.00851665",
        "shared": false
      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Series 2019 A, RB",
        "value": "21682130.66",
        "weight": "0.00772633",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 5% 5/1/2055 MT",
        "value": "20802907.85",
        "weight": "0.00741302",
        "shared": false
      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Clawback Highway Transportation Authority Claims Taxable Series 2022",
        "value": "19542796.00",
        "weight": "0.00696398",
        "shared": true
      },
      {
        "name": "New York City Transitional Finance Authority, Series A-1",
        "value": "19220646.60",
        "weight": "0.00684919",
        "shared": false
      },
      {
        "name": "TX TXSUTL 01/01/2055",
        "value": "16175279.58",
        "weight": "0.00576399",
        "shared": true
      },
      {
        "name": "JEA WTR & SWR REV-A",
        "value": "15907984.50",
        "weight": "0.00566874",
        "shared": false
      },
      {
        "name": "OK TURNPIKE AUTH",
        "value": "15660777.71",
        "weight": "0.00558064",
        "shared": false
      },
      {
        "name": "TX TTFTRN 5.5 10/01/2055",
        "value": "15478054.02",
        "weight": "0.00551553",
        "shared": false
      },
      {
        "name": "COUNTY OF COOK IL SALES TAX REVENUE",
        "value": "15365329.96",
        "weight": "0.00547536",
        "shared": false
      },
      {
        "name": "NE CENPWR 08/01/2055",
        "value": "15119684.50",
        "weight": "0.00538783",
        "shared": true
      },
      {
        "name": "State of Colorado, Series 2022",
        "value": "14436421.95",
        "weight": "0.00514435",
        "shared": false
      },
      {
        "name": "Los Angeles Department of Airports, California, Revenue Bonds, Los Angeles International Airport, Refunding Subordinate Green Series 2025A",
        "value": "14139883.46",
        "weight": "0.00503868",
        "shared": true
      },
      {
        "name": "OH BUCGEN 5 06/01/2055",
        "value": "14001800.95",
        "weight": "0.00498948",
        "shared": true
      },
      {
        "name": "District of Columbia Income Tax, Series 2025A",
        "value": "13448024.10",
        "weight": "0.00479214",
        "shared": false
      },
      {
        "name": "LOUISVILLE/JEFFERSON COUNTY METROPOLITAN GOVERNMENT",
        "value": "13000000.00",
        "weight": "0.00463249",
        "shared": false
      },
      {
        "name": "WI PUBTRN 5.75 06/30/2060",
        "value": "12831175.69",
        "weight": "0.00457233",
        "shared": true
      },
      {
        "name": "ARLINGTON TX HGR EDU FIN CORP REGD OID B/E PSF-GTD 4.00000000",
        "value": "12463785.21",
        "weight": "0.00444141",
        "shared": false
      },
      {
        "name": "TN TNSUTL 5 12/01/2035",
        "value": "11874958.04",
        "weight": "0.00423159",
        "shared": true
      },
      {
        "name": "Point Phase 1 Public Infrastructure District No. 1, Series 2025, RB",
        "value": "11786556.59",
        "weight": "0.00420008",
        "shared": false
      },
      {
        "name": "North Carolina Turnpike Authority, Triangle Expressway System Revenue Bonds, Refunding Series 2018",
        "value": "11275217.24",
        "weight": "0.00401787",
        "shared": false
      },
      {
        "name": "Denver (City & County of), CO, Series 2018 A, Ref. RB",
        "value": "11261440.41",
        "weight": "0.00401296",
        "shared": false
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      {
        "name": "WI PUBTRN 5.75 12/31/2065",
        "value": "11220064.21",
        "weight": "0.00399822",
        "shared": true
      },
      {
        "name": "Metropolitan Nashville, TN Airport Auth. Rev. B, AMT",
        "value": "10881515.70",
        "weight": "0.00387758",
        "shared": true
      },
      {
        "name": "State of Colorado, Rural Colorado, Certificates of Participation, Series 2022",
        "value": "10866436.49",
        "weight": "0.00387220",
        "shared": false
      },
      {
        "name": "Virginia (Commonwealth of) College Building Authority (21st Century College and Equipment Programs), Series 2024, RB",
        "value": "10678242.85",
        "weight": "0.00380514",
        "shared": false
      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/2054",
        "value": "10527535.81",
        "weight": "0.00375144",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series B",
        "value": "10320424.38",
        "weight": "0.00367763",
        "shared": true
      },
      {
        "name": "SEATTLE WA MUNI LIGHT & PWR REVENUE",
        "value": "9906569.37",
        "weight": "0.00353016",
        "shared": false
      },
      {
        "name": "NY TRANSPRTN DEV CORP",
        "value": "9896194.69",
        "weight": "0.00352646",
        "shared": true
      },
      {
        "name": "TX TRANSPRTN-C-REF",
        "value": "9819318.41",
        "weight": "0.00349907",
        "shared": false
      },
      {
        "name": "George L. Smith II GA World Congress Center Auth. Rev. (Convention Center Hotel) A",
        "value": "9778550.98",
        "weight": "0.00348454",
        "shared": false
      },
      {
        "name": "NY TRNSPRTN DEV CRP-A",
        "value": "9651563.95",
        "weight": "0.00343929",
        "shared": false
      },
      {
        "name": "PHILADELPHIA PA AUTH FOR INDL DEV HOSP REVENUE",
        "value": "9563237.26",
        "weight": "0.00340781",
        "shared": false
      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Series 2025 A, RB",
        "value": "9537630.30",
        "weight": "0.00339869",
        "shared": false
      },
      {
        "name": "NY NYCGEN 5.5 02/01/2048",
        "value": "9409919.65",
        "weight": "0.00335318",
        "shared": false
      },
      {
        "name": "WA ST HSG FIN COMMN-1",
        "value": "9341703.63",
        "weight": "0.00332887",
        "shared": false
      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2023A",
        "value": "9302020.56",
        "weight": "0.00331473",
        "shared": true
      },
      {
        "name": "WASHINGTON SUBURBAN SANITARY COMMISSION",
        "value": "9284027.20",
        "weight": "0.00330832",
        "shared": false
      },
      {
        "name": "MD ST STADIUM-UNREFD",
        "value": "9208453.61",
        "weight": "0.00328139",
        "shared": false
      },
      {
        "name": "SOUTH DAKOTA ST HLTH & EDUCTNL FACS AUTH",
        "value": "8942413.34",
        "weight": "0.00318659",
        "shared": false
      },
      {
        "name": "CT CTSHGR 5 07/01/2045",
        "value": "8923463.20",
        "weight": "0.00317983",
        "shared": false
      },
      {
        "name": "City of Atlanta, Series 2023 E",
        "value": "8864916.23",
        "weight": "0.00315897",
        "shared": false
      },
      {
        "name": "RESTRUCTURED-SER A1",
        "value": "8857163.43",
        "weight": "0.00315621",
        "shared": false
      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "8778661.20",
        "weight": "0.00312823",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "8670179.04",
        "weight": "0.00308958",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series 2025G",
        "value": "8588374.58",
        "weight": "0.00306043",
        "shared": true
      },
      {
        "name": "STATE OF NEW YORK PERSONAL INCOME TAX REVENUE 4.0% 03-15-54",
        "value": "8504662.16",
        "weight": "0.00303060",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "8425111.85",
        "weight": "0.00300225",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "AB Fixed Income Shares, Inc. - Government Money Market Portfolio",
        "value": "35927244.53",
        "weight": "0.02908969",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENRG 5% MT",
        "value": "10595762.00",
        "weight": "0.00857921",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series B-1",
        "value": "10576049.00",
        "weight": "0.00856325",
        "shared": false
      },
      {
        "name": "COLUMBUS REGL ARPT-A",
        "value": "10574579.00",
        "weight": "0.00856206",
        "shared": false
      },
      {
        "name": "MTRO WA DC ARPT 5.5% 10/1/54@",
        "value": "10460039.00",
        "weight": "0.00846932",
        "shared": true
      },
      {
        "name": "Washington Metropolitan Area Transit Authority, Series 2023A",
        "value": "10422432.00",
        "weight": "0.00843887",
        "shared": true
      },
      {
        "name": "MASSACHUSETTS ST MAS 12/54 FIXED 5",
        "value": "10342691.00",
        "weight": "0.00837431",
        "shared": false
      },
      {
        "name": "NEW YORK ST TWY -C",
        "value": "10114276.00",
        "weight": "0.00818936",
        "shared": false
      },
      {
        "name": "INDIANA ST FIN AUTH HLTH FAC REVENUE",
        "value": "9554533.24",
        "weight": "0.00773615",
        "shared": false
      },
      {
        "name": "Hillsborough County Industrial Development Authority",
        "value": "8550000.00",
        "weight": "0.00692279",
        "shared": false
      },
      {
        "name": "PORT SEATTLE 5% 10/1/2040@",
        "value": "7690118.80",
        "weight": "0.00622656",
        "shared": false
      },
      {
        "name": "BAY AREA TOLL-H",
        "value": "7500000.00",
        "weight": "0.00607263",
        "shared": false
      },
      {
        "name": "District of Columbia Income Tax Revenue (TOBs)",
        "value": "6825499.72",
        "weight": "0.00552649",
        "shared": false
      },
      {
        "name": "NY TRANSPRTN DEV CORP",
        "value": "6681910.65",
        "weight": "0.00541023",
        "shared": true
      },
      {
        "name": "LOS ANGELES CA WSTWTR SYS REVENUE",
        "value": "6542041.74",
        "weight": "0.00529698",
        "shared": false
      },
      {
        "name": "MET WASHINGTON DC ARPTS AUTH DULLES TOLL ROAD REVENUE",
        "value": "6356210.00",
        "weight": "0.00514652",
        "shared": false
      },
      {
        "name": "COLORADO ST EDUC LOAN PROGRAM",
        "value": "6217089.12",
        "weight": "0.00503387",
        "shared": false
      },
      {
        "name": "MIAMI-DADE CNTY FL AVIATION REVENUE",
        "value": "6195581.46",
        "weight": "0.00501646",
        "shared": true
      },
      {
        "name": "State of Colorado, Series B",
        "value": "6067489.20",
        "weight": "0.00491275",
        "shared": false
      },
      {
        "name": "PVT CLGS & UNIV AUTH-",
        "value": "5803955.00",
        "weight": "0.00469937",
        "shared": false
      },
      {
        "name": "Grand Traverse County Hospital Finance Authority, Series 2019 C",
        "value": "5800000.00",
        "weight": "0.00469616",
        "shared": false
      },
      {
        "name": "QUINCY MA",
        "value": "5691273.17",
        "weight": "0.00460813",
        "shared": false
      },
      {
        "name": "WI PUBTRN 5.75 12/31/2065",
        "value": "5635884.79",
        "weight": "0.00456328",
        "shared": true
      },
      {
        "name": "MBTA SLS TAX 5.25% 7/1/2048",
        "value": "5522824.76",
        "weight": "0.00447174",
        "shared": false
      },
      {
        "name": "SOUTHEAST ENERGY-E",
        "value": "5428533.50",
        "weight": "0.00439539",
        "shared": false
      },
      {
        "name": "District of Columbia (Green Bonds), Series 2022 A, RB",
        "value": "5337580.63",
        "weight": "0.00432175",
        "shared": false
      },
      {
        "name": "LOS ANGELES-D-REF-REV",
        "value": "5060426.08",
        "weight": "0.00409734",
        "shared": false
      },
      {
        "name": "MIAMI-DADE CNTY FL AVIATION REVENUE",
        "value": "5041995.06",
        "weight": "0.00408242",
        "shared": false
      },
      {
        "name": "UNITED AIRLINES INC 5.5% 07-15-38",
        "value": "5032630.36",
        "weight": "0.00407484",
        "shared": false
      },
      {
        "name": "COBB COUNTY SCHOOL DISTRICT",
        "value": "4821914.05",
        "weight": "0.00390422",
        "shared": false
      },
      {
        "name": "NY TRANS CORP 5% 6/30/2049 @",
        "value": "4797281.28",
        "weight": "0.00388428",
        "shared": false
      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
        "value": "4561091.40",
        "weight": "0.00369304",
        "shared": true
      },
      {
        "name": "State of Illinois, Series 2025B",
        "value": "4486240.80",
        "weight": "0.00363243",
        "shared": false
      },
      {
        "name": "NJ TRANSPRTN TRUST-A",
        "value": "4307831.25",
        "weight": "0.00348798",
        "shared": false
      },
      {
        "name": "TN TNSUTL 5 11/01/2034",
        "value": "4250010.08",
        "weight": "0.00344116",
        "shared": true
      },
      {
        "name": "FEDERAL HOME LOAN MTGE CORP MF VARIABLE RATE CTFS",
        "value": "4174927.87",
        "weight": "0.00338037",
        "shared": false
      },
      {
        "name": "PENNSYLVANIA ST",
        "value": "4127398.80",
        "weight": "0.00334189",
        "shared": false
      },
      {
        "name": "WI PUBTRN 5.75 06/30/2060",
        "value": "4126895.49",
        "weight": "0.00334148",
        "shared": true
      },
      {
        "name": "Southeast Alabama Gas Supply District (The), Series A",
        "value": "4095733.71",
        "weight": "0.00331625",
        "shared": false
      },
      {
        "name": "ANCHORAGE MUNICIPLITY",
        "value": "4091193.60",
        "weight": "0.00331257",
        "shared": false
      },
      {
        "name": "BLACK BELT ENERGY GAS DISTRICT (MPT) 5.0% 03-01-55",
        "value": "4066204.14",
        "weight": "0.00329234",
        "shared": true
      },
      {
        "name": "DESERTXPRESS ENTERPRISES LLC (MPT) 3.5% 01-01-65",
        "value": "4001887.60",
        "weight": "0.00324026",
        "shared": false
      },
      {
        "name": "MET WASHINGTON DC ARPTS AUTH ARPT SYS REVENUE",
        "value": "3925418.43",
        "weight": "0.00317835",
        "shared": false
      },
      {
        "name": "NATIONAL FIN AUTH NH REVENUE",
        "value": "3868828.77",
        "weight": "0.00313253",
        "shared": false
      },
      {
        "name": "SAN FRANCISCO CITY & COUNTY AIRPORT COMM-SAN FRANCISCO INTERNATIONAL AIRPORT 5.25% 05-01-40",
        "value": "3794201.10",
        "weight": "0.00307210",
        "shared": false
      },
      {
        "name": "Metropolitan Nashville, TN Airport Auth. Rev. B, AMT",
        "value": "3660288.80",
        "weight": "0.00296368",
        "shared": true
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "3604346.02",
        "weight": "0.00291838",
        "shared": false
      },
      {
        "name": "Black Belt Energy Gas District, Series D-3",
        "value": "3579280.00",
        "weight": "0.00289808",
        "shared": false
      },
      {
        "name": "NJ TRANSPRTN TRUST-AA",
        "value": "3508015.16",
        "weight": "0.00284038",
        "shared": false
      },
      {
        "name": "ID HLTH FACS AUTH-C",
        "value": "3500000.00",
        "weight": "0.00283389",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001099263-26-003715",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/912029/000109926326003715/0001099263-26-003715-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-032462",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/3794/000141036826032462/0001410368-26-032462-index.htm"
    }
  ]
}