{
  "page": "compare",
  "query": {
    "a": "TIOAX",
    "b": "FSPWX"
  },
  "retrieved_at": "2026-07-07T16:19:44+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": "Transamerica Inflation Opportunities",
    "ticker": "TIOAX",
    "slug": "TIOAX",
    "series_id": "S000044274",
    "html_url": "https://fundwatcher.app/funds/TIOAX/"
  },
  "fund_b": {
    "name": "Fidelity SAI Inflation-Protected Bond Index Fund",
    "ticker": "FSPWX",
    "slug": "FSPWX",
    "series_id": "S000086560",
    "html_url": "https://fundwatcher.app/funds/FSPWX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.5606599957458886090698007619",
    "coverage_b_by_a": "0.5606599957458886090698007617",
    "shared_count": 42,
    "as_of": {
      "a": "2026-04-30",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32",
        "value": "8868120.62",
        "weight": "0.05667761",
        "shared": true
      },
      {
        "name": "Japan Government CPI-Linked Bonds",
        "value": "6336025.64",
        "weight": "0.04049458",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
        "value": "5337567.86",
        "weight": "0.03411327",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
        "value": "4821910.67",
        "weight": "0.03081762",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042",
        "value": "4754578.06",
        "weight": "0.03038729",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
        "value": "4604054.58",
        "weight": "0.02942527",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028",
        "value": "4362386.67",
        "weight": "0.02788073",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
        "value": "3874289.79",
        "weight": "0.02476122",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "3810390.56",
        "weight": "0.02435283",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027",
        "value": "3744635.23",
        "weight": "0.02393258",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
        "value": "3460552.51",
        "weight": "0.02211696",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40",
        "value": "3355473.52",
        "weight": "0.02144538",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "3355289.46",
        "weight": "0.02144420",
        "shared": true
      },
      {
        "name": "Federal Republic of Germany",
        "value": "3318359.38",
        "weight": "0.02120818",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Indexed Notes",
        "value": "3305845.71",
        "weight": "0.02112820",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32",
        "value": "3188094.33",
        "weight": "0.02037563",
        "shared": true
      },
      {
        "name": "UST BILLS 0% 05/14/2026",
        "value": "2996118.96",
        "weight": "0.01914869",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-3/8% 01/15/27",
        "value": "2902438.74",
        "weight": "0.01854996",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
        "value": "2850362.60",
        "weight": "0.01821713",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "2794180.78",
        "weight": "0.01785807",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
        "value": "2756577.70",
        "weight": "0.01761774",
        "shared": true
      },
      {
        "name": "State Street Navigator Securities Lending Portfolio II",
        "value": "2550664.70",
        "weight": "0.01630172",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "2545492.45",
        "weight": "0.01626866",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032",
        "value": "2525725.90",
        "weight": "0.01614233",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044",
        "value": "2501493.55",
        "weight": "0.01598745",
        "shared": true
      },
      {
        "name": "Spain Government Inflation-Linked Bonds",
        "value": "2480714.19",
        "weight": "0.01585465",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031",
        "value": "2296207.93",
        "weight": "0.01467544",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043",
        "value": "2269564.89",
        "weight": "0.01450516",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29",
        "value": "2248909.11",
        "weight": "0.01437315",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
        "value": "2059983.63",
        "weight": "0.01316569",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Security 0.375%, due 01/15/27",
        "value": "1968505.70",
        "weight": "0.01258104",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "1776543.42",
        "weight": "0.01135418",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
        "value": "1712281.92",
        "weight": "0.01094347",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053",
        "value": "1682199.49",
        "weight": "0.01075121",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045",
        "value": "1498355.68",
        "weight": "0.00957624",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "1484128.22",
        "weight": "0.00948531",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
        "value": "1384980.99",
        "weight": "0.00885164",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "1316251.04",
        "weight": "0.00841238",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052",
        "value": "1282896.15",
        "weight": "0.00819920",
        "shared": true
      },
      {
        "name": "BANK OF AMER CRP",
        "value": "1223186.12",
        "weight": "0.00781758",
        "shared": false
      },
      {
        "name": "HIG F 02/12/47 ICON",
        "value": "1151799.24",
        "weight": "0.00736134",
        "shared": false
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "1146674.77",
        "weight": "0.00732859",
        "shared": true
      },
      {
        "name": "APA CORP SR UNSECURED 01/30 4.25",
        "value": "1088334.00",
        "weight": "0.00695572",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050",
        "value": "1080110.98",
        "weight": "0.00690317",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "1021030.11",
        "weight": "0.00652557",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "1009973.15",
        "weight": "0.00645490",
        "shared": true
      },
      {
        "name": "BANK OF AMER CRP",
        "value": "975187.64",
        "weight": "0.00623258",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034",
        "value": "959978.62",
        "weight": "0.00613538",
        "shared": true
      },
      {
        "name": "State Street Navigator Securities Lending Government Money Market Portfolio",
        "value": "948755.00",
        "weight": "0.00606365",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054",
        "value": "937356.13",
        "weight": "0.00599080",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "642025847.23",
        "weight": "0.04237359",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "612431616.00",
        "weight": "0.04042038",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "599778718.45",
        "weight": "0.03958529",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "562904526.33",
        "weight": "0.03715160",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
        "value": "529375218.21",
        "weight": "0.03493867",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034",
        "value": "514780886.96",
        "weight": "0.03397545",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032",
        "value": "514348973.90",
        "weight": "0.03394694",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
        "value": "506017097.94",
        "weight": "0.03339704",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
        "value": "504039564.59",
        "weight": "0.03326652",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
        "value": "503194860.70",
        "weight": "0.03321077",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
        "value": "502070522.97",
        "weight": "0.03313656",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030",
        "value": "501797651.07",
        "weight": "0.03311855",
        "shared": false
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "484354848.73",
        "weight": "0.03196733",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031",
        "value": "478804729.34",
        "weight": "0.03160103",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32",
        "value": "452689899.44",
        "weight": "0.02987745",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
        "value": "446694616.66",
        "weight": "0.02948176",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
        "value": "440618484.58",
        "weight": "0.02908074",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "428911440.73",
        "weight": "0.02830808",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031",
        "value": "426090585.14",
        "weight": "0.02812190",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29",
        "value": "424121541.05",
        "weight": "0.02799195",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027",
        "value": "402302159.40",
        "weight": "0.02655187",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
        "value": "393726471.71",
        "weight": "0.02598588",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
        "value": "358050373.54",
        "weight": "0.02363126",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028",
        "value": "354069884.80",
        "weight": "0.02336855",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "290894724.55",
        "weight": "0.01919900",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044",
        "value": "229395158.77",
        "weight": "0.01514004",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Indexed Notes",
        "value": "225521085.50",
        "weight": "0.01488435",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "223597715.24",
        "weight": "0.01475741",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
        "value": "220276477.32",
        "weight": "0.01453821",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053",
        "value": "209313139.80",
        "weight": "0.01381463",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "172443253.53",
        "weight": "0.01138122",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043",
        "value": "171311953.28",
        "weight": "0.01130656",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "170599204.57",
        "weight": "0.01125952",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042",
        "value": "160561221.67",
        "weight": "0.01059701",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48",
        "value": "160255634.09",
        "weight": "0.01057684",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045",
        "value": "157719055.09",
        "weight": "0.01040943",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
        "value": "150234030.35",
        "weight": "0.00991542",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054",
        "value": "123356502.29",
        "weight": "0.00814151",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047",
        "value": "112451072.07",
        "weight": "0.00742175",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052",
        "value": "105713279.17",
        "weight": "0.00697706",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "103953230.85",
        "weight": "0.00686089",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation Linked Bonds",
        "value": "99722838.90",
        "weight": "0.00658169",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40",
        "value": "96863269.65",
        "weight": "0.00639296",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32",
        "value": "89243647.10",
        "weight": "0.00589006",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "86474719.87",
        "weight": "0.00570732",
        "shared": true
      },
      {
        "name": "UNITED STATES TREASURY INFLATION INDEXED BONDS I/L 2.375% 02-15-56",
        "value": "84712893.39",
        "weight": "0.00559104",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46",
        "value": "68238732.93",
        "weight": "0.00450374",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050",
        "value": "42728124.63",
        "weight": "0.00282005",
        "shared": true
      },
      {
        "name": "Fidelity Cash Central Fund",
        "value": "12775187.26",
        "weight": "0.00084316",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-063339",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/787623/000141036826063339/0001410368-26-063339-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-003402",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226003402/0000035402-26-003402-index.htm"
    }
  ]
}