{
  "page": "compare",
  "query": {
    "a": "MFFKX",
    "b": "MACFX"
  },
  "retrieved_at": "2026-07-07T18:50:21+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": "MFFKX",
    "slug": "MFFKX",
    "series_id": "S000030062",
    "html_url": "https://fundwatcher.app/funds/MFFKX/"
  },
  "fund_b": {
    "name": "MFS Conservative Allocation Fund",
    "ticker": "MACFX",
    "slug": "MACFX",
    "series_id": "S000002510",
    "html_url": "https://fundwatcher.app/funds/MACFX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.4195128725627787374262427635",
    "coverage_b_by_a": "0.4195128725627787374262427636",
    "shared_count": 19,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "MFS Blended Research International Equity Fund",
        "value": "72272642.48",
        "weight": "0.11397456",
        "shared": false
      },
      {
        "name": "MFS Blended Research Mid Cap Equity Fund",
        "value": "62353559.04",
        "weight": "0.09833208",
        "shared": false
      },
      {
        "name": "MFS Blended Research Value Equity Fund",
        "value": "35088682.62",
        "weight": "0.05533515",
        "shared": false
      },
      {
        "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": false
      },
      {
        "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": false
      },
      {
        "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": false
      },
      {
        "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": false
      },
      {
        "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": false
      },
      {
        "name": "MFS Emerging Markets Equity Fund",
        "value": "6512655.79",
        "weight": "0.01027051",
        "shared": false
      },
      {
        "name": "MFS High Income Fund",
        "value": "693714.03",
        "weight": "0.00109399",
        "shared": true
      },
      {
        "name": "MFS Emerging Markets Debt Fund",
        "value": "523356.73",
        "weight": "0.00082534",
        "shared": true
      },
      {
        "name": "MFS Global Opportunistic Bond Fund",
        "value": "522181.42",
        "weight": "0.00082348",
        "shared": true
      },
      {
        "name": "MFS Emerging Markets Debt Local Currency Fund",
        "value": "352129.61",
        "weight": "0.00055531",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "MFS Research Bond Fund",
        "value": "557154896.06",
        "weight": "0.15006378",
        "shared": true
      },
      {
        "name": "MFS Government Securities Fund",
        "value": "372091477.17",
        "weight": "0.10021890",
        "shared": false
      },
      {
        "name": "MFS Inflation Adjusted Bond Fund",
        "value": "372062368.24",
        "weight": "0.10021106",
        "shared": true
      },
      {
        "name": "MFS Ltd Maturity Fund",
        "value": "371204977.87",
        "weight": "0.09998013",
        "shared": false
      },
      {
        "name": "MFS Global Opportunistic Bond Fund",
        "value": "260181546.60",
        "weight": "0.07007715",
        "shared": true
      },
      {
        "name": "MFS-VALUE-R6",
        "value": "222442605.16",
        "weight": "0.05991256",
        "shared": true
      },
      {
        "name": "MFS-RESEAR-R6",
        "value": "193910625.62",
        "weight": "0.05222778",
        "shared": true
      },
      {
        "name": "MFS Growth Fund",
        "value": "192507006.70",
        "weight": "0.05184973",
        "shared": true
      },
      {
        "name": "MFS High Income Fund",
        "value": "147997384.51",
        "weight": "0.03986153",
        "shared": true
      },
      {
        "name": "MFS Mid Cap Value Fund",
        "value": "147697970.74",
        "weight": "0.03978089",
        "shared": true
      },
      {
        "name": "MFS Mid Cap Growth Fund",
        "value": "147024900.63",
        "weight": "0.03959960",
        "shared": true
      },
      {
        "name": "MFS-RSCH IN-R6",
        "value": "139402831.53",
        "weight": "0.03754668",
        "shared": true
      },
      {
        "name": "MFS Commodity Strategy Fund",
        "value": "74996524.79",
        "weight": "0.02019952",
        "shared": true
      },
      {
        "name": "MFS-GL RL ES-R5",
        "value": "74417994.85",
        "weight": "0.02004370",
        "shared": true
      },
      {
        "name": "MFS Emerging Markets Debt Fund",
        "value": "74189853.24",
        "weight": "0.01998225",
        "shared": true
      },
      {
        "name": "MFS Emerging Markets Debt Local Currency Fund",
        "value": "74133187.51",
        "weight": "0.01996699",
        "shared": true
      },
      {
        "name": "MFS-INTL GRW-R6",
        "value": "59367870.64",
        "weight": "0.01599011",
        "shared": true
      },
      {
        "name": "MFS International Intrinsic Value Fund",
        "value": "59297501.45",
        "weight": "0.01597115",
        "shared": true
      },
      {
        "name": "MFS-INTL LCV-R6",
        "value": "59202989.71",
        "weight": "0.01594570",
        "shared": false
      },
      {
        "name": "MFS Institutional Money Market Portfolio, Class A",
        "value": "40120986.23",
        "weight": "0.01080616",
        "shared": true
      },
      {
        "name": "MFS New Discovery Fund",
        "value": "36718546.35",
        "weight": "0.00988975",
        "shared": true
      },
      {
        "name": "MFS New Discovery Value Fund",
        "value": "36663314.37",
        "weight": "0.00987488",
        "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": "0001410368-26-040064",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/783740/000141036826040064/0001410368-26-040064-index.htm"
    }
  ]
}