{
  "page": "compare",
  "query": {
    "a": "EACAX",
    "b": "MCFTX"
  },
  "retrieved_at": "2026-07-07T19:34:13+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": "Eaton Vance California Municipal Opportunities Fund",
    "ticker": "EACAX",
    "slug": "EACAX",
    "series_id": "S000004860",
    "html_url": "https://fundwatcher.app/funds/EACAX/"
  },
  "fund_b": {
    "name": "MFS California Municipal Bond Fund",
    "ticker": "MCFTX",
    "slug": "MCFTX",
    "series_id": "S000002530",
    "html_url": "https://fundwatcher.app/funds/MCFTX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.06745351376727153800757666476",
    "coverage_b_by_a": "0.06745351376727153800757666475",
    "shared_count": 28,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "California (State of) Community Choice Financing Authority (Clean Energy) (Green Bonds), Series 2024, RB",
        "value": "20048998.13",
        "weight": "0.01930690",
        "shared": false
      },
      {
        "name": "Los Angeles Department of Airports, California, Revenue Bonds, Los Angeles International Airport, Subordinate Lien Series 2018A",
        "value": "17664217.95",
        "weight": "0.01701039",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST MUNI FIN AUTH REVENUE",
        "value": "14313328.80",
        "weight": "0.01378353",
        "shared": false
      },
      {
        "name": "FONTANA UNIF SD-A",
        "value": "13745982.13",
        "weight": "0.01323718",
        "shared": false
      },
      {
        "name": "San Francisco (City & County of), CA Public Utilities Commission, Series 2016, Ref. RB",
        "value": "13041554.91",
        "weight": "0.01255883",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST ENTERPRISE DEV AUTH REVENUE",
        "value": "12153697.50",
        "weight": "0.01170384",
        "shared": false
      },
      {
        "name": "Cupertino Union School District, Series A",
        "value": "11664089.58",
        "weight": "0.01123235",
        "shared": false
      },
      {
        "name": "MONTEREY PENINSULA CA UNIF SCH DIST",
        "value": "11151827.04",
        "weight": "0.01073905",
        "shared": false
      },
      {
        "name": "VENTURA UNIF SD-B",
        "value": "10941157.16",
        "weight": "0.01053618",
        "shared": false
      },
      {
        "name": "SANTA MONICA-MALIBU CA UNIF SCH DIST",
        "value": "10893542.84",
        "weight": "0.01049033",
        "shared": false
      },
      {
        "name": "STATE OF CALIFORNIA",
        "value": "10792051.00",
        "weight": "0.01039259",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series F",
        "value": "10754365.00",
        "weight": "0.01035630",
        "shared": false
      },
      {
        "name": "CA ST UNIV-A-REF",
        "value": "10741629.00",
        "weight": "0.01034403",
        "shared": false
      },
      {
        "name": "Chaffey Joint Union High School District, Series B",
        "value": "10525360.99",
        "weight": "0.01013577",
        "shared": false
      },
      {
        "name": "LOS ANGELES DEPT ARPT",
        "value": "10487565.00",
        "weight": "0.01009937",
        "shared": false
      },
      {
        "name": "UNITED AIRLINES INC 4.0% 07-15-29",
        "value": "10167257.13",
        "weight": "0.00979092",
        "shared": false
      },
      {
        "name": "SAN MARCOS USD-A",
        "value": "10132754.28",
        "weight": "0.00975770",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST ENTERPRISE DEV AUTH REVENUE",
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        "weight": "0.00975323",
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      },
      {
        "name": "CALIFORNIA ST MUNI FIN AUTH MF HSG REVENUE",
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        "weight": "0.00967102",
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      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Second Series 2023 C, Ref. RB",
        "value": "10036078.95",
        "weight": "0.00966460",
        "shared": true
      },
      {
        "name": "W VLY-MISSION CMNTY",
        "value": "9487249.42",
        "weight": "0.00913608",
        "shared": false
      },
      {
        "name": "CA TXB-VAR PURP",
        "value": "9196783.20",
        "weight": "0.00885637",
        "shared": false
      },
      {
        "name": "SAN JOSE USD-A",
        "value": "9110033.10",
        "weight": "0.00877283",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "9091040.40",
        "weight": "0.00875454",
        "shared": false
      },
      {
        "name": "Sacramento County, CA Airport System Rev. A, AMT",
        "value": "8776614.24",
        "weight": "0.00845175",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023, RB",
        "value": "8406336.39",
        "weight": "0.00809518",
        "shared": true
      },
      {
        "name": "MOUNTAIN VIEW-WHISMAN CA SCH DIST",
        "value": "8406267.85",
        "weight": "0.00809512",
        "shared": false
      },
      {
        "name": "TAMALPAIS CA UNION HIGH SCH DIST",
        "value": "8288371.27",
        "weight": "0.00798158",
        "shared": false
      },
      {
        "name": "BEVERLY HILLS UNIF SD",
        "value": "8282296.99",
        "weight": "0.00797573",
        "shared": false
      },
      {
        "name": "SANTA MONICA MALIBU UNIFIED SCHOOL DISTRICT",
        "value": "8067342.32",
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      },
      {
        "name": "U.S. Treasury Bills",
        "value": "7995186.64",
        "weight": "0.00769925",
        "shared": false
      },
      {
        "name": "PAJARO VLY CA UNIF SCH DIST",
        "value": "7748014.78",
        "weight": "0.00746123",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST MUNI FIN AUTH REVENUE",
        "value": "7709683.10",
        "weight": "0.00742431",
        "shared": true
      },
      {
        "name": "SAN FRANCISCO CA BAY AREA RAPID TRANSIT DIST",
        "value": "7695207.10",
        "weight": "0.00741037",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series 2025G",
        "value": "7582323.70",
        "weight": "0.00730167",
        "shared": false
      },
      {
        "name": "SAN DIEGO CNTY CA REGL ARPT AUTH AIRPORT REVENUE",
        "value": "7560795.71",
        "weight": "0.00728094",
        "shared": false
      },
      {
        "name": "SACRAMENTO USD-C",
        "value": "7436321.27",
        "weight": "0.00716107",
        "shared": false
      },
      {
        "name": "GLENDALE CA UNIF SCH DIST",
        "value": "7346437.91",
        "weight": "0.00707451",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series C",
        "value": "7267803.20",
        "weight": "0.00699879",
        "shared": true
      },
      {
        "name": "SAN DIEGO CNTY CA REGL ARPT AUTH AIRPORT REVENUE",
        "value": "7190874.50",
        "weight": "0.00692471",
        "shared": false
      },
      {
        "name": "SAN JOAQUIN HILLS CA TRANSPRTN CORRIDOR AGY TOLL ROAD REV",
        "value": "6936018.75",
        "weight": "0.00667929",
        "shared": false
      },
      {
        "name": "LOS ANGELES USD-A",
        "value": "6586868.38",
        "weight": "0.00634306",
        "shared": false
      },
      {
        "name": "PASADENA CA PENSION OBLIG",
        "value": "6396381.60",
        "weight": "0.00615962",
        "shared": false
      },
      {
        "name": "LONG BEACH CA UNIF SCH DIST",
        "value": "6309190.44",
        "weight": "0.00607566",
        "shared": false
      },
      {
        "name": "CULVER CITY CA UNIF SCH DIST",
        "value": "6091210.21",
        "weight": "0.00586575",
        "shared": false
      },
      {
        "name": "LOMA LINDA UNIVERSITY MEDICAL CENTER OBLIGATED GROUP 5.5% 12-01-54",
        "value": "6058257.04",
        "weight": "0.00583401",
        "shared": true
      },
      {
        "name": "CA ST MUNI FIN AUTH-A",
        "value": "6037419.70",
        "weight": "0.00581395",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST HLTH FACS FING AUTH REVENUE",
        "value": "5995734.45",
        "weight": "0.00577381",
        "shared": false
      },
      {
        "name": "Peralta Community College District",
        "value": "5840000.00",
        "weight": "0.00562384",
        "shared": false
      },
      {
        "name": "SAN FRANCISCO CA BAY AREA RAPID TRANSIT DIST",
        "value": "5831733.60",
        "weight": "0.00561588",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
        "value": "33164381.09",
        "weight": "0.04157409",
        "shared": false
      },
      {
        "name": "California Community Choice Financing Authority, Series C",
        "value": "9338921.10",
        "weight": "0.01170705",
        "shared": true
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "8035752.75",
        "weight": "0.01007343",
        "shared": false
      },
      {
        "name": "LOS ANGELES HSG-A",
        "value": "7919212.00",
        "weight": "0.00992734",
        "shared": false
      },
      {
        "name": "CALIFORNIA MUNICIPAL FINANCE AUTHORITY",
        "value": "7897030.95",
        "weight": "0.00989953",
        "shared": false
      },
      {
        "name": "OAKLAND UNIF SCH D-A",
        "value": "7361357.50",
        "weight": "0.00922802",
        "shared": false
      },
      {
        "name": "Inglewood Joint Powers Authority, Series 2025",
        "value": "6330975.60",
        "weight": "0.00793636",
        "shared": true
      },
      {
        "name": "California Housing Finance Agency, Series 2026 ISSUE A",
        "value": "5891413.20",
        "weight": "0.00738534",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST HLTH FACS FING AUTH REVENUE",
        "value": "5774298.45",
        "weight": "0.00723852",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "5409991.00",
        "weight": "0.00678184",
        "shared": false
      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Second Series 2023 C, Ref. RB",
        "value": "5339977.00",
        "weight": "0.00669407",
        "shared": true
      },
      {
        "name": "San Francisco Community College District, Series B",
        "value": "5309297.00",
        "weight": "0.00665561",
        "shared": false
      },
      {
        "name": "OAKLAND-D",
        "value": "5297019.50",
        "weight": "0.00664022",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB",
        "value": "5289029.00",
        "weight": "0.00663020",
        "shared": false
      },
      {
        "name": "California (State of) Community Choice Financing Authority (Green Bonds), Series 2023, RB",
        "value": "5232771.50",
        "weight": "0.00655968",
        "shared": true
      },
      {
        "name": "IRVINE CMNTY FACS DT",
        "value": "5226065.50",
        "weight": "0.00655127",
        "shared": false
      },
      {
        "name": "San Diego County Regional Airport Authority, Series 2025 B",
        "value": "5203924.00",
        "weight": "0.00652352",
        "shared": false
      },
      {
        "name": "SAN LUIS OBISPO PUBLIC FINANCI SLOFIN 12/53 FIXED 5",
        "value": "5185679.00",
        "weight": "0.00650064",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST HLTH FACS FING AUTH REVENUE",
        "value": "5167421.00",
        "weight": "0.00647776",
        "shared": true
      },
      {
        "name": "PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000",
        "value": "5082159.40",
        "weight": "0.00637088",
        "shared": false
      },
      {
        "name": "Mt. San Antonio Community College District, Series 2013A",
        "value": "5075566.50",
        "weight": "0.00636261",
        "shared": false
      },
      {
        "name": "CA STWD(ENLOE HLTH SYST)/AGM 5.38% 8/15/57",
        "value": "5057092.00",
        "weight": "0.00633945",
        "shared": false
      },
      {
        "name": "CA MUNI FIN AUTH-A",
        "value": "5004730.50",
        "weight": "0.00627381",
        "shared": false
      },
      {
        "name": "California Housing Finance Agency, Series 2024 ISSUE DD",
        "value": "4960470.00",
        "weight": "0.00621833",
        "shared": false
      },
      {
        "name": "CALIFORNIA HSG FIN AGY LTD OBLIG MF HSG REVENUE",
        "value": "4913372.00",
        "weight": "0.00615929",
        "shared": false
      },
      {
        "name": "CALIFORNIA HSG FIN AGY LTD OBLIG MF HSG REVENUE",
        "value": "4913372.00",
        "weight": "0.00615929",
        "shared": false
      },
      {
        "name": "CALIFORNIA HSG FIN AGY LTD OBLIG MF HSG REVENUE",
        "value": "4911349.50",
        "weight": "0.00615675",
        "shared": true
      },
      {
        "name": "North Lake Tahoe Public Financing Authority 5.50% 12/01/2047",
        "value": "4779932.79",
        "weight": "0.00599201",
        "shared": false
      },
      {
        "name": "SANTA CLARA CY 3% 5/1/2039",
        "value": "4749264.98",
        "weight": "0.00595357",
        "shared": false
      },
      {
        "name": "New Hampshire Business Finance Authority, Series 4, Class A",
        "value": "4745309.41",
        "weight": "0.00594861",
        "shared": false
      },
      {
        "name": "Clovis Unified School District, Series C",
        "value": "4709697.50",
        "weight": "0.00590397",
        "shared": false
      },
      {
        "name": "Alameda Corridor Transportation Authority, Series C",
        "value": "4657024.28",
        "weight": "0.00583794",
        "shared": false
      },
      {
        "name": "UNIV OF CA REGENTS -P",
        "value": "4520440.00",
        "weight": "0.00566672",
        "shared": false
      },
      {
        "name": "LOS ANGELES DEPT ARPT",
        "value": "4460673.00",
        "weight": "0.00559179",
        "shared": false
      },
      {
        "name": "CALIFORNIA ST MUNI FIN AUTH RE CASFIN 01/42 FIXED 5",
        "value": "4318553.63",
        "weight": "0.00541364",
        "shared": false
      },
      {
        "name": "CALIFORNIA CMNTY CHOICE FING A REGD B/E 5.25000000",
        "value": "4290378.80",
        "weight": "0.00537832",
        "shared": false
      },
      {
        "name": "CALIFORNIA COMMUNITY VAR",
        "value": "4284094.80",
        "weight": "0.00537044",
        "shared": false
      },
      {
        "name": "CA ST UNIV-A-REF",
        "value": "4276758.00",
        "weight": "0.00536124",
        "shared": false
      },
      {
        "name": "LOS ANGELES CA DEPT OF ARPTS ARPT REVENUE",
        "value": "4264779.42",
        "weight": "0.00534623",
        "shared": false
      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Second Series 2024, Ref. RB",
        "value": "4256294.40",
        "weight": "0.00533559",
        "shared": false
      },
      {
        "name": "Ceres Unified School District, Series 2025A",
        "value": "4169338.00",
        "weight": "0.00522658",
        "shared": false
      },
      {
        "name": "Los Angeles Department of Airports, California, Revenue Bonds, Los Angeles International Airport, Refunding Subordinate Green Series 2025A",
        "value": "4167433.20",
        "weight": "0.00522420",
        "shared": false
      },
      {
        "name": "Kerman Public Financing Authority, Series 2025",
        "value": "4151228.00",
        "weight": "0.00520388",
        "shared": false
      },
      {
        "name": "San Francisco (City & County of), CA Airport Commission (San Francisco International Airport), Series 2016, RB",
        "value": "4000098.00",
        "weight": "0.00501443",
        "shared": false
      },
      {
        "name": "CA ST MFA COP 5.25% 11/1/2052",
        "value": "3994617.20",
        "weight": "0.00500756",
        "shared": false
      },
      {
        "name": "CA MUNI FIN AUTH-A",
        "value": "3992080.80",
        "weight": "0.00500438",
        "shared": true
      },
      {
        "name": "BEVERLY HILLS USD CAB",
        "value": "3985423.87",
        "weight": "0.00499603",
        "shared": false
      },
      {
        "name": "REPUBLIC SERVICES INC (MPT) 3.875% 03-01-54",
        "value": "3972416.40",
        "weight": "0.00497973",
        "shared": false
      },
      {
        "name": "INDIO PUB FING AUTH-A",
        "value": "3933807.70",
        "weight": "0.00493133",
        "shared": false
      },
      {
        "name": "GOLDEN ST TOBACCO SECURITIZATI REGD B/E 5.00000000",
        "value": "3914510.80",
        "weight": "0.00490714",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-050795",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/778365/000141036826050795/0001410368-26-050795-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0002071691-26-011424",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/751656/000207169126011424/0002071691-26-011424-index.htm"
    }
  ]
}