{
  "page": "compare",
  "query": {
    "a": "ATTAX",
    "b": "FSMUX"
  },
  "retrieved_at": "2026-07-07T18:49:29+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": "AB Tax-Aware Fixed Income Opportunities Portfolio",
    "ticker": "ATTAX",
    "slug": "ATTAX",
    "series_id": "S000043269",
    "html_url": "https://fundwatcher.app/funds/ATTAX/"
  },
  "fund_b": {
    "name": "Strategic Advisers Municipal Bond Fund",
    "ticker": "FSMUX",
    "slug": "FSMUX",
    "series_id": "S000072234",
    "html_url": "https://fundwatcher.app/funds/FSMUX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.07027970883256755814916074469",
    "coverage_b_by_a": "0.07027970883256755814916074470",
    "shared_count": 267,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-02-28"
    },
    "a_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": true
      },
      {
        "name": "California Community Choice Financing Authority, Series B-1",
        "value": "10576049.00",
        "weight": "0.00856325",
        "shared": true
      },
      {
        "name": "COLUMBUS REGL ARPT-A",
        "value": "10574579.00",
        "weight": "0.00856206",
        "shared": true
      },
      {
        "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": true
      },
      {
        "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": true
      },
      {
        "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": true
      },
      {
        "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",
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      },
      {
        "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
      }
    ],
    "b_top": [
      {
        "name": "Allspring Municipal Bond Admin",
        "value": "865145655.00",
        "weight": "0.06200385",
        "shared": false
      },
      {
        "name": "Vanguard Long-Term Tax-Exempt Adm",
        "value": "694526934.51",
        "weight": "0.04977583",
        "shared": false
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      {
        "name": "Franklin Federal Tax Free Income R6",
        "value": "656439810.79",
        "weight": "0.04704618",
        "shared": false
      },
      {
        "name": "MONEY MARKET FUND",
        "value": "482309091.20",
        "weight": "0.03456646",
        "shared": false
      },
      {
        "name": "ISHARES NATIONAL MUNI BOND ETF ISHARES NATIONAL MUNI BOND E",
        "value": "322880269.60",
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        "shared": false
      },
      {
        "name": "VANGUARD TAX-EXM",
        "value": "310440040.35",
        "weight": "0.02224883",
        "shared": false
      },
      {
        "name": "DWS Managed Municipal Bond S",
        "value": "306113111.12",
        "weight": "0.02193872",
        "shared": false
      },
      {
        "name": "FIDELITY SAI ENHANCED MUNICIPAL INCOME FUND",
        "value": "259260993.15",
        "weight": "0.01858089",
        "shared": false
      },
      {
        "name": "BlackRock National Municipal Inv A",
        "value": "259004967.65",
        "weight": "0.01856254",
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      },
      {
        "name": "Eaton Vance National Municipal Income I",
        "value": "243829535.70",
        "weight": "0.01747494",
        "shared": false
      },
      {
        "name": "American High-Income Municipal Bond F-2",
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        "weight": "0.01115457",
        "shared": false
      },
      {
        "name": "Fidelity Municipal Cash Central Fund",
        "value": "80023976.23",
        "weight": "0.00573521",
        "shared": false
      },
      {
        "name": "Invesco Government & Agency Portfolio, Institutional Class",
        "value": "40242334.91",
        "weight": "0.00288412",
        "shared": false
      },
      {
        "name": "MAIN STR NAT GA 4% 07/01/2052 MT",
        "value": "37437239.06",
        "weight": "0.00268308",
        "shared": false
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 4.75000000",
        "value": "33883883.53",
        "weight": "0.00242841",
        "shared": false
      },
      {
        "name": "OH BUCGEN 5 06/01/2055",
        "value": "32929474.32",
        "weight": "0.00236001",
        "shared": true
      },
      {
        "name": "SOUTHEAST ENERGY-E",
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        "weight": "0.00225687",
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      },
      {
        "name": "TN TNSUTL 5 12/01/2035",
        "value": "28499240.13",
        "weight": "0.00204250",
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      },
      {
        "name": "Public Energy Auth. of Kentucky Gas Supply Rev. Refg. C",
        "value": "20993906.34",
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      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB",
        "value": "20284645.40",
        "weight": "0.00145377",
        "shared": true
      },
      {
        "name": "Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series A",
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      {
        "name": "CHICAGO ILLIN 6% 4/1/2046",
        "value": "18890444.64",
        "weight": "0.00135385",
        "shared": false
      },
      {
        "name": "MUNIBOND",
        "value": "18270368.41",
        "weight": "0.00130941",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "18207752.42",
        "weight": "0.00130493",
        "shared": true
      },
      {
        "name": "MAIN STR NAT GA(RCC) 5% 9/1/30MT 53",
        "value": "16523209.13",
        "weight": "0.00118420",
        "shared": false
      },
      {
        "name": "TX TTFTRN 5.5 10/01/2055",
        "value": "16370516.04",
        "weight": "0.00117325",
        "shared": false
      },
      {
        "name": "TN TNSUTL 5 11/01/2034",
        "value": "16071892.68",
        "weight": "0.00115185",
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      },
      {
        "name": "NY TRANS CORP(JFK INT NEW ONE)/AGM 5.13% 6/30/60@",
        "value": "15961418.43",
        "weight": "0.00114393",
        "shared": true
      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds Cooperative District Energy Supply Series 2024C",
        "value": "15885729.16",
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      {
        "name": "NEW YORK ST URBAN DEV CORP SALES TAX REVENUE",
        "value": "15696810.00",
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      {
        "name": "NY NYEFAC 07/01/2056",
        "value": "15553968.75",
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      },
      {
        "name": "San Francisco City & County Airport Comm-San Francisco International Airport",
        "value": "15330517.33",
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      {
        "name": "LOWER AL GAS DT-A-REF",
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      {
        "name": "State of Illinois, Series D",
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        "weight": "0.00107547",
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      {
        "name": "TOBACCO SETTLEMENT FING CORP N TOBGEN 06/46 FIXED 5",
        "value": "14988320.72",
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      },
      {
        "name": "WI PUBTRN 5.75 12/31/2065",
        "value": "14578761.47",
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        "shared": true
      },
      {
        "name": "PENNSYLVANIA ST ECON DEV FING REGD OID B/E AMT 5.25000000",
        "value": "14489270.33",
        "weight": "0.00103843",
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      },
      {
        "name": "STATE OF ILLINOIS MCCORMICK PLACE EXPANSION PROJECT FUND 4.0% 06-15-52",
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      {
        "name": "PENNSYLVANIA ST ECON DEV FING REGD B/E AMT 5.75000000",
        "value": "14373169.96",
        "weight": "0.00103011",
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      },
      {
        "name": "Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022",
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      },
      {
        "name": "MAIN STR NAT GA 4% 9/1/2052",
        "value": "14357702.49",
        "weight": "0.00102900",
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      },
      {
        "name": "Southeast Energy Authority, Alabama, Revenue Bonds, Cooperative District Energy Supply Series 2025B",
        "value": "14355131.65",
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      },
      {
        "name": "MAIN STR NAT GA 5% MT",
        "value": "14222939.55",
        "weight": "0.00101934",
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      },
      {
        "name": "Black Belt Energy Gas District, Series D-1",
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        "weight": "0.00101613",
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      {
        "name": "TX TXSUTL 01/01/2055",
        "value": "13568832.68",
        "weight": "0.00097246",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000",
        "value": "13388709.79",
        "weight": "0.00095955",
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      },
      {
        "name": "NEW YORK ST DO 5% 3/15/2041",
        "value": "13335564.04",
        "weight": "0.00095574",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Clean Energy) (Green Bonds), Series 2024, RB",
        "value": "13108509.88",
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        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series 2025G",
        "value": "13063507.04",
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      },
      {
        "name": "NY TRNSPRTN DEV CRP-A",
        "value": "13029440.89",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "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"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002694",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1364924/000003540226002694/0000035402-26-002694-index.htm"
    }
  ]
}