{
  "page": "compare",
  "query": {
    "a": "FSUNX",
    "b": "FIRMX"
  },
  "retrieved_at": "2026-07-07T18:24:10+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": "Fidelity Sustainable Target Date Retirement Fund",
    "ticker": "FSUNX",
    "slug": "FSUNX",
    "series_id": "S000080299",
    "html_url": "https://fundwatcher.app/funds/FSUNX/"
  },
  "fund_b": {
    "name": "Fidelity Managed Retirement Income Fund",
    "ticker": "FIRMX",
    "slug": "FIRMX",
    "series_id": "S000018468",
    "html_url": "https://fundwatcher.app/funds/FIRMX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.3029387550663694100810284273",
    "coverage_b_by_a": "0.3029387550663694100810284273",
    "shared_count": 5,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "Fidelity Series Sustainable Investment Grade Bond Fund",
        "value": "537900.60",
        "weight": "0.38246296",
        "shared": false
      },
      {
        "name": "FIDELITY SERIES 0-5 YEAR INFLATION-PROTECTED BOND INDEX FUND",
        "value": "316992.18",
        "weight": "0.22539065",
        "shared": true
      },
      {
        "name": "Fidelity Series Sustainable U.S. Market Fund",
        "value": "169974.75",
        "weight": "0.12085699",
        "shared": false
      },
      {
        "name": "Fidelity Series Sustainable Non-U.S. Developed Markets Fund",
        "value": "131286.66",
        "weight": "0.09334863",
        "shared": false
      },
      {
        "name": "Fidelity Series Treasury Bill Index Fund",
        "value": "77520.01",
        "weight": "0.05511898",
        "shared": true
      },
      {
        "name": "FIDELITY SERIES INTERNATIONAL DEVELOPED MARKETS BOND INDEX FUND",
        "value": "70720.21",
        "weight": "0.05028412",
        "shared": true
      },
      {
        "name": "Fidelity Series Sustainable Emerging Markets Fund",
        "value": "66530.65",
        "weight": "0.04730523",
        "shared": false
      },
      {
        "name": "Fidelity Series Long-Term Treasury Bond Index Fund",
        "value": "19521.75",
        "weight": "0.01388053",
        "shared": true
      },
      {
        "name": "FIDELITY SERIES 5+ YEAR INFLATION-PROTECTED BOND INDEX FUND",
        "value": "15965.46",
        "weight": "0.01135191",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "FIDELITY SERIES 0-5 YEAR INFLATION-PROTECTED BOND INDEX FUND",
        "value": "3079590.34",
        "weight": "0.18409094",
        "shared": true
      },
      {
        "name": "Fidelity Series Government Bond Index Fund",
        "value": "2290590.02",
        "weight": "0.13692629",
        "shared": false
      },
      {
        "name": "Fidelity Series Investment Grade Bond Fund",
        "value": "2126951.53",
        "weight": "0.12714435",
        "shared": false
      },
      {
        "name": "Fidelity Series Corporate Bond Fund",
        "value": "1371939.36",
        "weight": "0.08201143",
        "shared": false
      },
      {
        "name": "Fidelity Series Investment Grade Securitized Fund",
        "value": "1304214.54",
        "weight": "0.07796299",
        "shared": false
      },
      {
        "name": "FIDELITY SERIES INTERNATIONAL DEVELOPED MARKETS BOND INDEX FUND",
        "value": "826483.23",
        "weight": "0.04940530",
        "shared": true
      },
      {
        "name": "Fidelity Series Treasury Bill Index Fund",
        "value": "763113.12",
        "weight": "0.04561718",
        "shared": true
      },
      {
        "name": "Fidelity Series Emerging Markets Opportunities Fund",
        "value": "496622.58",
        "weight": "0.02968697",
        "shared": false
      },
      {
        "name": "Fidelity Series Large Cap Value Index Fund",
        "value": "444625.09",
        "weight": "0.02657868",
        "shared": false
      },
      {
        "name": "Fidelity Series Long-Term Treasury Bond Index Fund",
        "value": "419952.94",
        "weight": "0.02510384",
        "shared": true
      },
      {
        "name": "Fidelity Series Blue Chip Growth Fund",
        "value": "357092.77",
        "weight": "0.02134620",
        "shared": false
      },
      {
        "name": "Fidelity Series Government Money Market Fund",
        "value": "343895.99",
        "weight": "0.02055732",
        "shared": false
      },
      {
        "name": "Fidelity Series International Value Fund",
        "value": "269011.04",
        "weight": "0.01608087",
        "shared": false
      },
      {
        "name": "Fidelity Series Canada Fund",
        "value": "268763.79",
        "weight": "0.01606609",
        "shared": false
      },
      {
        "name": "Fidelity Series International Growth Fund",
        "value": "267627.38",
        "weight": "0.01599816",
        "shared": false
      },
      {
        "name": "Fidelity Series Overseas Fund",
        "value": "262964.86",
        "weight": "0.01571944",
        "shared": false
      },
      {
        "name": "FIDELITY SERIES LARGE CAP STOCK FUND",
        "value": "240397.43",
        "weight": "0.01437041",
        "shared": false
      },
      {
        "name": "Fidelity Series Large Cap Growth Index Fund",
        "value": "227186.58",
        "weight": "0.01358070",
        "shared": false
      },
      {
        "name": "Fidelity Series International Small Cap Fund",
        "value": "198995.15",
        "weight": "0.01189548",
        "shared": false
      },
      {
        "name": "Fidelity Series Short-Term Credit Fund",
        "value": "172882.71",
        "weight": "0.01033454",
        "shared": false
      },
      {
        "name": "FIDELITY SERIES 5+ YEAR INFLATION-PROTECTED BOND INDEX FUND",
        "value": "166363.13",
        "weight": "0.00994481",
        "shared": true
      },
      {
        "name": "Fidelity Series Value Discovery Fund",
        "value": "158782.06",
        "weight": "0.00949163",
        "shared": false
      },
      {
        "name": "Fidelity Series Emerging Markets Fund",
        "value": "128958.49",
        "weight": "0.00770885",
        "shared": false
      },
      {
        "name": "Fidelity Series Commodity Strategy Fund",
        "value": "126365.96",
        "weight": "0.00755387",
        "shared": false
      },
      {
        "name": "Fidelity Series International Index Fund",
        "value": "99817.49",
        "weight": "0.00596686",
        "shared": false
      },
      {
        "name": "Fidelity Series Emerging Markets Debt Fund",
        "value": "92864.87",
        "weight": "0.00555125",
        "shared": false
      },
      {
        "name": "Fidelity Series Small Cap Core Fund",
        "value": "77307.41",
        "weight": "0.00462126",
        "shared": false
      },
      {
        "name": "Fidelity Series Small Cap Opportunities Fund",
        "value": "44455.00",
        "weight": "0.00265742",
        "shared": false
      },
      {
        "name": "FIDELITY SERIES EMERGING MARKETS DEBT LOCAL CURRENCY FUND",
        "value": "23737.15",
        "weight": "0.00141895",
        "shared": false
      },
      {
        "name": "Fidelity Series Select International Small Cap Fund",
        "value": "17982.66",
        "weight": "0.00107496",
        "shared": false
      },
      {
        "name": "Fidelity Series High Income Fund",
        "value": "16710.86",
        "weight": "0.00099894",
        "shared": false
      },
      {
        "name": "Fidelity Series Floating Rate High Income Fund",
        "value": "16577.34",
        "weight": "0.00099096",
        "shared": false
      },
      {
        "name": "Fidelity Series Real Estate Income Fund",
        "value": "16575.12",
        "weight": "0.00099082",
        "shared": false
      },
      {
        "name": "Fidelity Series International Credit Fund",
        "value": "9238.07",
        "weight": "0.00055223",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-003427",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/880195/000003540226003427/0000035402-26-003427-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002002",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/751199/000003540226002002/0000035402-26-002002-index.htm"
    }
  ]
}