{
  "page": "compare",
  "query": {
    "a": "MAGG",
    "b": "FSIGX"
  },
  "retrieved_at": "2026-07-07T18:28:54+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": "Madison Aggregate Bond ETF",
    "ticker": "MAGG",
    "slug": "MAGG",
    "series_id": "S000081097",
    "html_url": "https://fundwatcher.app/funds/MAGG/"
  },
  "fund_b": {
    "name": "Fidelity Series Investment Grade Bond Fund",
    "ticker": "FSIGX",
    "slug": "FSIGX",
    "series_id": "S000023604",
    "html_url": "https://fundwatcher.app/funds/FSIGX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.06704062839179423205013152459",
    "coverage_b_by_a": "0.06704062839179423205013152459",
    "shared_count": 19,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "US TREASURY N/B",
        "value": "2257294.93",
        "weight": "0.03289114",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "2050859.38",
        "weight": "0.02988316",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "2001562.50",
        "weight": "0.02916485",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "1684580.08",
        "weight": "0.02454609",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "1265527.35",
        "weight": "0.01844005",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "1263916.01",
        "weight": "0.01841657",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "1122656.25",
        "weight": "0.01635827",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "1099072.26",
        "weight": "0.01601463",
        "shared": true
      },
      {
        "name": "FR SD8266",
        "value": "1015282.67",
        "weight": "0.01479373",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "971796.88",
        "weight": "0.01416009",
        "shared": false
      },
      {
        "name": "FNMA UMBS, 30 Year",
        "value": "929183.99",
        "weight": "0.01353918",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "887968.75",
        "weight": "0.01293863",
        "shared": false
      },
      {
        "name": "FN MA4841",
        "value": "850149.37",
        "weight": "0.01238756",
        "shared": false
      },
      {
        "name": "Government National Mortgage Association REMICS",
        "value": "734867.64",
        "weight": "0.01070779",
        "shared": false
      },
      {
        "name": "FNMA UMBS, 30 Year",
        "value": "714388.14",
        "weight": "0.01040938",
        "shared": false
      },
      {
        "name": "Freddie Mac Gold Pool",
        "value": "711770.55",
        "weight": "0.01037124",
        "shared": false
      },
      {
        "name": "FR SD2875",
        "value": "705997.01",
        "weight": "0.01028711",
        "shared": false
      },
      {
        "name": "FR SD8267",
        "value": "663659.29",
        "weight": "0.00967021",
        "shared": false
      },
      {
        "name": "FN MA4571",
        "value": "652808.46",
        "weight": "0.00951210",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "651396.49",
        "weight": "0.00949153",
        "shared": false
      },
      {
        "name": "FN MA4806",
        "value": "537384.84",
        "weight": "0.00783026",
        "shared": false
      },
      {
        "name": "WELLS FARGO CO",
        "value": "536190.73",
        "weight": "0.00781286",
        "shared": false
      },
      {
        "name": "UMBS",
        "value": "528551.01",
        "weight": "0.00770154",
        "shared": false
      },
      {
        "name": "VZMT 2024-3 B",
        "value": "505741.65",
        "weight": "0.00736918",
        "shared": false
      },
      {
        "name": "Fannie Mae Pool",
        "value": "498009.21",
        "weight": "0.00725651",
        "shared": false
      },
      {
        "name": "EATON CORP",
        "value": "494478.98",
        "weight": "0.00720507",
        "shared": false
      },
      {
        "name": "FR SD7552",
        "value": "490635.70",
        "weight": "0.00714907",
        "shared": false
      },
      {
        "name": "Government National Mortgage Association 6.00",
        "value": "489349.38",
        "weight": "0.00713033",
        "shared": false
      },
      {
        "name": "FN MA5530",
        "value": "485232.88",
        "weight": "0.00707035",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "477800.78",
        "weight": "0.00696206",
        "shared": false
      },
      {
        "name": "Government National Mortgage Association REMICS",
        "value": "476706.71",
        "weight": "0.00694611",
        "shared": false
      },
      {
        "name": "FNMA 30YR 2% 03/01/2052#CB3105",
        "value": "465994.08",
        "weight": "0.00679002",
        "shared": false
      },
      {
        "name": "Uniform Mortgage-Backed Securities",
        "value": "463748.76",
        "weight": "0.00675730",
        "shared": false
      },
      {
        "name": "FNA 2022-M1 A2",
        "value": "461309.09",
        "weight": "0.00672175",
        "shared": false
      },
      {
        "name": "Freddie Mac Pool",
        "value": "460084.25",
        "weight": "0.00670391",
        "shared": false
      },
      {
        "name": "Freddie Mac Pool",
        "value": "457893.33",
        "weight": "0.00667198",
        "shared": false
      },
      {
        "name": "BORGWARNER INC",
        "value": "455928.39",
        "weight": "0.00664335",
        "shared": false
      },
      {
        "name": "GE HEALTHCARE",
        "value": "453924.07",
        "weight": "0.00661415",
        "shared": false
      },
      {
        "name": "DVN 5.2 09/15/34",
        "value": "451491.60",
        "weight": "0.00657870",
        "shared": false
      },
      {
        "name": "ENERGY TRANS",
        "value": "432661.64",
        "weight": "0.00630433",
        "shared": true
      },
      {
        "name": "BANK OF AMER CRP",
        "value": "432473.48",
        "weight": "0.00630159",
        "shared": true
      },
      {
        "name": "FREDDIE MAC POOL FR 04/52 FIXED 3.5",
        "value": "421995.21",
        "weight": "0.00614891",
        "shared": false
      },
      {
        "name": "HUNTINGTON BANCS",
        "value": "414911.65",
        "weight": "0.00604570",
        "shared": false
      },
      {
        "name": "AMERICAN EXPRESS",
        "value": "407264.14",
        "weight": "0.00593426",
        "shared": false
      },
      {
        "name": "MORGAN STANLEY",
        "value": "407090.08",
        "weight": "0.00593173",
        "shared": true
      },
      {
        "name": "META PLATFORMS",
        "value": "392583.28",
        "weight": "0.00572035",
        "shared": false
      },
      {
        "name": "FREDDIE MAC POOL 5.50%",
        "value": "391067.15",
        "weight": "0.00569826",
        "shared": false
      },
      {
        "name": "FR SD8276",
        "value": "384394.02",
        "weight": "0.00560102",
        "shared": false
      },
      {
        "name": "Federal National Mortgage Association",
        "value": "382051.29",
        "weight": "0.00556689",
        "shared": false
      },
      {
        "name": "FR SD7556",
        "value": "379533.01",
        "weight": "0.00553019",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "Fidelity Cash Central Fund",
        "value": "1345626421.10",
        "weight": "0.03104402",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "1294110162.60",
        "weight": "0.02985553",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "749263265.63",
        "weight": "0.01728574",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "744711182.74",
        "weight": "0.01718072",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "722487140.63",
        "weight": "0.01666800",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "697116448.41",
        "weight": "0.01608269",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "625821326.62",
        "weight": "0.01443789",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "601568750.00",
        "weight": "0.01387838",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "590520937.50",
        "weight": "0.01362350",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "589702228.97",
        "weight": "0.01360462",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "572252225.17",
        "weight": "0.01320204",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "555646644.94",
        "weight": "0.01281894",
        "shared": false
      },
      {
        "name": "Government National Mortgage Association, TBA",
        "value": "554372072.09",
        "weight": "0.01278954",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "529760275.93",
        "weight": "0.01222174",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "527989800.00",
        "weight": "0.01218089",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "510312500.00",
        "weight": "0.01177307",
        "shared": true
      },
      {
        "name": "GNII II 5.5% 03/01/2056 #TBA",
        "value": "496916916.54",
        "weight": "0.01146403",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "492318748.80",
        "weight": "0.01135795",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "486318748.80",
        "weight": "0.01121953",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "479023594.92",
        "weight": "0.01105122",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "471392577.00",
        "weight": "0.01087517",
        "shared": false
      },
      {
        "name": "FNCL 6 3/24",
        "value": "452480527.98",
        "weight": "0.01043887",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "431580189.65",
        "weight": "0.00995669",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "420794418.53",
        "weight": "0.00970786",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "401125000.00",
        "weight": "0.00925408",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "392350000.00",
        "weight": "0.00905164",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "380537107.50",
        "weight": "0.00877911",
        "shared": false
      },
      {
        "name": "G2SF 5.5 4/25",
        "value": "376093940.04",
        "weight": "0.00867660",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "355364015.63",
        "weight": "0.00819836",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "345831836.59",
        "weight": "0.00797845",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "315315000.00",
        "weight": "0.00727442",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "290702483.65",
        "weight": "0.00670660",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "289918594.44",
        "weight": "0.00668851",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "288789007.81",
        "weight": "0.00666245",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "282750781.94",
        "weight": "0.00652315",
        "shared": false
      },
      {
        "name": "Fannie Mae or Freddie Mac",
        "value": "264737554.36",
        "weight": "0.00610758",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "257396837.50",
        "weight": "0.00593823",
        "shared": true
      },
      {
        "name": "US TREASURY N/B",
        "value": "254548831.79",
        "weight": "0.00587252",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "229779373.82",
        "weight": "0.00530108",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "223353199.06",
        "weight": "0.00515283",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "221181250.00",
        "weight": "0.00510272",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "218288437.50",
        "weight": "0.00503598",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "216066094.28",
        "weight": "0.00498471",
        "shared": false
      },
      {
        "name": "Uniform Mortgage-Backed Security, TBA",
        "value": "210871283.96",
        "weight": "0.00486487",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "204784452.12",
        "weight": "0.00472444",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "198287951.40",
        "weight": "0.00457457",
        "shared": false
      },
      {
        "name": "US TREASURY N/B",
        "value": "197546562.50",
        "weight": "0.00455746",
        "shared": false
      },
      {
        "name": "G2SF 6 4/25",
        "value": "189081537.54",
        "weight": "0.00436217",
        "shared": false
      },
      {
        "name": "FNCL 5.5 3/25",
        "value": "188383790.52",
        "weight": "0.00434607",
        "shared": false
      },
      {
        "name": "GNMA TBA",
        "value": "187532419.86",
        "weight": "0.00432643",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001193125-26-244445",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1976877/000119312526244445/0001193125-26-244445-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002637",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226002637/0000035402-26-002637-index.htm"
    }
  ]
}