{
  "page": "compare",
  "query": {
    "a": "MFFIX",
    "b": "LFTLX"
  },
  "retrieved_at": "2026-07-07T19:41:45+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": "MFS Lifetime 2050 Fund",
    "ticker": "MFFIX",
    "slug": "MFFIX",
    "series_id": "S000030062",
    "html_url": "https://fundwatcher.app/funds/MFFIX/"
  },
  "fund_b": {
    "name": "MFS Lifetime 2065 Fund",
    "ticker": "LFTLX",
    "slug": "LFTLX",
    "series_id": "S000072833",
    "html_url": "https://fundwatcher.app/funds/LFTLX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.9943327181211441097498205270",
    "coverage_b_by_a": "0.9943327181211441097498205269",
    "shared_count": 24,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "MFS Blended Research International Equity Fund",
        "value": "72272642.48",
        "weight": "0.11397456",
        "shared": true
      },
      {
        "name": "MFS Blended Research Mid Cap Equity Fund",
        "value": "62353559.04",
        "weight": "0.09833208",
        "shared": true
      },
      {
        "name": "MFS Blended Research Value Equity Fund",
        "value": "35088682.62",
        "weight": "0.05533515",
        "shared": true
      },
      {
        "name": "MFS-VALUE-R6",
        "value": "34855401.82",
        "weight": "0.05496726",
        "shared": true
      },
      {
        "name": "MFS Commodity Strategy Fund",
        "value": "32440278.29",
        "weight": "0.05115859",
        "shared": true
      },
      {
        "name": "MFS Blended Research Growth Equity Fund",
        "value": "31918068.96",
        "weight": "0.05033506",
        "shared": true
      },
      {
        "name": "MFS Growth Fund",
        "value": "31675369.95",
        "weight": "0.04995232",
        "shared": true
      },
      {
        "name": "MFS-GL RL ES-R5",
        "value": "31568267.96",
        "weight": "0.04978342",
        "shared": true
      },
      {
        "name": "MFS Mid Cap Value Fund",
        "value": "31494117.33",
        "weight": "0.04966649",
        "shared": true
      },
      {
        "name": "MFS Mid Cap Growth Fund",
        "value": "30481313.63",
        "weight": "0.04806929",
        "shared": true
      },
      {
        "name": "MFS Blended Research Core Equity Fund",
        "value": "29343950.50",
        "weight": "0.04627566",
        "shared": true
      },
      {
        "name": "MFS-RESEAR-R6",
        "value": "29219860.78",
        "weight": "0.04607996",
        "shared": true
      },
      {
        "name": "MFS-RSCH IN-R6",
        "value": "26210377.55",
        "weight": "0.04133398",
        "shared": true
      },
      {
        "name": "MFS-INT N D-R6",
        "value": "25657881.02",
        "weight": "0.04046269",
        "shared": true
      },
      {
        "name": "MFS International Intrinsic Value Fund",
        "value": "22608378.95",
        "weight": "0.03565360",
        "shared": true
      },
      {
        "name": "MFS-INTL GRW-R6",
        "value": "22445947.24",
        "weight": "0.03539745",
        "shared": true
      },
      {
        "name": "MFS Inflation Adjusted Bond Fund",
        "value": "16202662.74",
        "weight": "0.02555173",
        "shared": true
      },
      {
        "name": "MFS Blended Research Small Cap Equity Fund",
        "value": "15486237.00",
        "weight": "0.02442193",
        "shared": true
      },
      {
        "name": "MFS Research Bond Fund",
        "value": "12657525.36",
        "weight": "0.01996102",
        "shared": true
      },
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
        "value": "9438338.80",
        "weight": "0.01488434",
        "shared": true
      },
      {
        "name": "MFS New Discovery Value Fund",
        "value": "7801469.12",
        "weight": "0.01230298",
        "shared": true
      },
      {
        "name": "MFS New Discovery Fund",
        "value": "7680738.88",
        "weight": "0.01211259",
        "shared": true
      },
      {
        "name": "MFS Blended Research Emerging Markets Equity Fund",
        "value": "6606939.06",
        "weight": "0.01041920",
        "shared": true
      },
      {
        "name": "MFS Emerging Markets Equity Fund",
        "value": "6512655.79",
        "weight": "0.01027051",
        "shared": true
      },
      {
        "name": "MFS High Income Fund",
        "value": "693714.03",
        "weight": "0.00109399",
        "shared": false
      },
      {
        "name": "MFS Emerging Markets Debt Fund",
        "value": "523356.73",
        "weight": "0.00082534",
        "shared": false
      },
      {
        "name": "MFS Global Opportunistic Bond Fund",
        "value": "522181.42",
        "weight": "0.00082348",
        "shared": false
      },
      {
        "name": "MFS Emerging Markets Debt Local Currency Fund",
        "value": "352129.61",
        "weight": "0.00055531",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "MFS Blended Research International Equity Fund",
        "value": "5494791.35",
        "weight": "0.11315301",
        "shared": true
      },
      {
        "name": "MFS Blended Research Mid Cap Equity Fund",
        "value": "4800737.53",
        "weight": "0.09886051",
        "shared": true
      },
      {
        "name": "MFS Blended Research Value Equity Fund",
        "value": "2680026.14",
        "weight": "0.05518918",
        "shared": true
      },
      {
        "name": "MFS-VALUE-R6",
        "value": "2677900.28",
        "weight": "0.05514540",
        "shared": true
      },
      {
        "name": "MFS Blended Research Growth Equity Fund",
        "value": "2485137.99",
        "weight": "0.05117589",
        "shared": true
      },
      {
        "name": "MFS Growth Fund",
        "value": "2470459.21",
        "weight": "0.05087361",
        "shared": true
      },
      {
        "name": "MFS Commodity Strategy Fund",
        "value": "2465706.42",
        "weight": "0.05077574",
        "shared": true
      },
      {
        "name": "MFS-GL RL ES-R5",
        "value": "2435587.89",
        "weight": "0.05015552",
        "shared": true
      },
      {
        "name": "MFS Mid Cap Value Fund",
        "value": "2420411.75",
        "weight": "0.04984300",
        "shared": true
      },
      {
        "name": "MFS Mid Cap Growth Fund",
        "value": "2355976.40",
        "weight": "0.04851609",
        "shared": true
      },
      {
        "name": "MFS Blended Research Core Equity Fund",
        "value": "2256327.12",
        "weight": "0.04646404",
        "shared": true
      },
      {
        "name": "MFS-RESEAR-R6",
        "value": "2249489.89",
        "weight": "0.04632324",
        "shared": true
      },
      {
        "name": "MFS-RSCH IN-R6",
        "value": "1993705.52",
        "weight": "0.04105593",
        "shared": true
      },
      {
        "name": "MFS-INT N D-R6",
        "value": "1973409.07",
        "weight": "0.04063797",
        "shared": true
      },
      {
        "name": "MFS International Intrinsic Value Fund",
        "value": "1723054.64",
        "weight": "0.03548248",
        "shared": true
      },
      {
        "name": "MFS-INTL GRW-R6",
        "value": "1715271.14",
        "weight": "0.03532219",
        "shared": true
      },
      {
        "name": "MFS Inflation Adjusted Bond Fund",
        "value": "1216804.21",
        "weight": "0.02505738",
        "shared": true
      },
      {
        "name": "MFS Blended Research Small Cap Equity Fund",
        "value": "1194016.58",
        "weight": "0.02458812",
        "shared": true
      },
      {
        "name": "MFS Research Bond Fund",
        "value": "1014556.29",
        "weight": "0.02089253",
        "shared": true
      },
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
        "value": "734582.86",
        "weight": "0.01512710",
        "shared": true
      },
      {
        "name": "MFS New Discovery Value Fund",
        "value": "601978.06",
        "weight": "0.01239640",
        "shared": true
      },
      {
        "name": "MFS New Discovery Fund",
        "value": "592474.41",
        "weight": "0.01220069",
        "shared": true
      },
      {
        "name": "MFS Blended Research Emerging Markets Equity Fund",
        "value": "507177.63",
        "weight": "0.01044420",
        "shared": true
      },
      {
        "name": "MFS Emerging Markets Equity Fund",
        "value": "501135.53",
        "weight": "0.01031977",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-032761",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1330967/000141036826032761/0001410368-26-032761-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-032756",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1330967/000141036826032756/0001410368-26-032756-index.htm"
    }
  ]
}