{
  "page": "compare",
  "query": {
    "a": "CCVIX",
    "b": "CWB"
  },
  "retrieved_at": "2026-07-07T19:23:15+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": "Calamos Convertible Fund",
    "ticker": "CCVIX",
    "slug": "CCVIX",
    "series_id": "S000004060",
    "html_url": "https://fundwatcher.app/funds/CCVIX/"
  },
  "fund_b": {
    "name": "State Street(R) SPDR(R) Bloomberg Convertible Securities ETF",
    "ticker": "CWB",
    "slug": "CWB",
    "series_id": "S000022925",
    "html_url": "https://fundwatcher.app/funds/CWB/"
  },
  "overlap": {
    "coverage_a_by_b": "0.3498556252012776548979197565",
    "coverage_b_by_a": "0.3498556252012776548979197564",
    "shared_count": 89,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "WESTERN DIGITAL CORPORATION SR UNSEC CV 3.0% 11-15-28",
        "value": "33157300.00",
        "weight": "0.03506713",
        "shared": true
      },
      {
        "name": "Lumentum Holdings Inc., Conv.",
        "value": "30654315.00",
        "weight": "0.03241997",
        "shared": true
      },
      {
        "name": "Boeing Co. (The), Conv. Pfd.",
        "value": "29724363.20",
        "weight": "0.03143646",
        "shared": true
      },
      {
        "name": "MKS INC SR UNSECURED 06/30 1.25",
        "value": "27415050.00",
        "weight": "0.02899413",
        "shared": true
      },
      {
        "name": "State Street Navigator Securities Lending Government Money Market Portfolio",
        "value": "25840210.00",
        "weight": "0.02732858",
        "shared": false
      },
      {
        "name": "NextEra Energy Capital Holdings, Inc., Convertible",
        "value": "23634125.00",
        "weight": "0.02499543",
        "shared": true
      },
      {
        "name": "Alibaba Group Holding Ltd.",
        "value": "20697060.00",
        "weight": "0.02188919",
        "shared": false
      },
      {
        "name": "BLOOM ENERGY CORP CONV 0% 11/15/2030 144A",
        "value": "19192490.00",
        "weight": "0.02029796",
        "shared": true
      },
      {
        "name": "BWX Technologies, Inc., Convertible",
        "value": "18922877.50",
        "weight": "0.02001282",
        "shared": true
      },
      {
        "name": "STX 3.5 06/01/28",
        "value": "18674137.50",
        "weight": "0.01974975",
        "shared": true
      },
      {
        "name": "CYBR 0 06/15/30",
        "value": "17052768.00",
        "weight": "0.01803499",
        "shared": true
      },
      {
        "name": "Akamai Technologies, Inc., Convertible",
        "value": "16693737.50",
        "weight": "0.01765528",
        "shared": true
      },
      {
        "name": "UBER TECHNOLOGIES INC SR UNSECURED 12/28 0.875",
        "value": "15697272.50",
        "weight": "0.01660142",
        "shared": true
      },
      {
        "name": "IREN LTD SR UNSECURED 144A 07/31 0.0000",
        "value": "14111130.00",
        "weight": "0.01492392",
        "shared": true
      },
      {
        "name": "RIVN 3.625 10/15/30",
        "value": "13301540.00",
        "weight": "0.01406770",
        "shared": true
      },
      {
        "name": "Liberty Media Corp.-Liberty Formula One Corp.",
        "value": "13146525.00",
        "weight": "0.01390375",
        "shared": true
      },
      {
        "name": "DOORDASH INC SR UNSECURED 144A 05/30 0.0000",
        "value": "13029510.00",
        "weight": "0.01378000",
        "shared": true
      },
      {
        "name": "PPL Capital Funding, Inc., Convertible",
        "value": "12972460.00",
        "weight": "0.01371966",
        "shared": true
      },
      {
        "name": "LYFT INC CONV 0% 09/15/2030 144A",
        "value": "12951190.00",
        "weight": "0.01369717",
        "shared": true
      },
      {
        "name": "Bank of America Corp., Series L, Conv. Pfd.",
        "value": "12833800.00",
        "weight": "0.01357301",
        "shared": true
      },
      {
        "name": "SNOWFLAKE INC SR UNSECURED 10/29 0.00000",
        "value": "12681810.00",
        "weight": "0.01341227",
        "shared": true
      },
      {
        "name": "AEIS 2.5 09/15/28",
        "value": "12630930.00",
        "weight": "0.01335846",
        "shared": true
      },
      {
        "name": "DDOG 0 12/01/29",
        "value": "12564615.00",
        "weight": "0.01328832",
        "shared": true
      },
      {
        "name": "Duke Energy Corporation, Convertible",
        "value": "12471000.00",
        "weight": "0.01318932",
        "shared": false
      },
      {
        "name": "SOUTHERN CO/THE SR UNSECURED 06/27 4.5",
        "value": "12379520.00",
        "weight": "0.01309257",
        "shared": true
      },
      {
        "name": "MTSI 0 12/15/29",
        "value": "12271025.00",
        "weight": "0.01297782",
        "shared": false
      },
      {
        "name": "CMS Energy Corporation, Convertible",
        "value": "11894960.00",
        "weight": "0.01258010",
        "shared": true
      },
      {
        "name": "WULF 1 09/01/31",
        "value": "11252470.00",
        "weight": "0.01190060",
        "shared": true
      },
      {
        "name": "WAYFAIR INC CONV 3.5% 11/15/2028",
        "value": "11182402.50",
        "weight": "0.01182650",
        "shared": true
      },
      {
        "name": "Welltower OP, LLC, Convertible",
        "value": "11064297.50",
        "weight": "0.01170159",
        "shared": true
      },
      {
        "name": "NET 0 06/15/30",
        "value": "10808756.64",
        "weight": "0.01143133",
        "shared": true
      },
      {
        "name": "CIPHER MINING INC CONV 0% 10/01/2031 144A",
        "value": "10589452.50",
        "weight": "0.01119939",
        "shared": true
      },
      {
        "name": "COINBASE GLOBAL INC SR UNSECURED 04/30 0.25",
        "value": "10564992.50",
        "weight": "0.01117353",
        "shared": true
      },
      {
        "name": "JAZZ INVTS I LTD CONV 3.125% 09/15/2030",
        "value": "10465520.00",
        "weight": "0.01106832",
        "shared": true
      },
      {
        "name": "IONS 0 12/01/30",
        "value": "10249092.50",
        "weight": "0.01083943",
        "shared": true
      },
      {
        "name": "MICROCHIP TECHNOLOGY INC SER A 7.5% PC 03/15/2028",
        "value": "9943452.60",
        "weight": "0.01051619",
        "shared": true
      },
      {
        "name": "ALBEMARLE CORP PFD",
        "value": "9803635.90",
        "weight": "0.01036832",
        "shared": true
      },
      {
        "name": "AVAV 0 07/15/30",
        "value": "9755047.50",
        "weight": "0.01031693",
        "shared": true
      },
      {
        "name": "HALOZYME THERAPEUTICS INC CONV 0.875% 11/15/2032 144A",
        "value": "9728317.50",
        "weight": "0.01028866",
        "shared": true
      },
      {
        "name": "Mirion Technologies (US), Inc.",
        "value": "9724350.00",
        "weight": "0.01028446",
        "shared": true
      },
      {
        "name": "ON Semiconductor Corporation, Convertible",
        "value": "9205905.00",
        "weight": "0.00973616",
        "shared": true
      },
      {
        "name": "DLR 1.875 11/15/29",
        "value": "9072437.50",
        "weight": "0.00959500",
        "shared": true
      },
      {
        "name": "LYV 2.875 01/15/30",
        "value": "9038390.00",
        "weight": "0.00955899",
        "shared": true
      },
      {
        "name": "WEC ENERGY GROUP INC SR UNSECURED 144A 06/28 3.375",
        "value": "8979425.00",
        "weight": "0.00949663",
        "shared": true
      },
      {
        "name": "FLUOR CORP SR UNSECURED 08/29 1.125",
        "value": "8975065.00",
        "weight": "0.00949202",
        "shared": true
      },
      {
        "name": "APOLLO GLOBAL MANAGEMENT PFD",
        "value": "8866179.70",
        "weight": "0.00937686",
        "shared": true
      },
      {
        "name": "GWRE 1.25 11/01/29",
        "value": "8502200.00",
        "weight": "0.00899192",
        "shared": true
      },
      {
        "name": "LEU 0 08/15/32",
        "value": "8378267.50",
        "weight": "0.00886085",
        "shared": true
      },
      {
        "name": "ZSCALER INC SR UNSECURED 144A 07/28 0.0000",
        "value": "8373870.00",
        "weight": "0.00885620",
        "shared": true
      },
      {
        "name": "Ares Management Corp., Series B, Conv. Pfd.",
        "value": "8295635.20",
        "weight": "0.00877346",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "WESTERN DIGITAL CORPORATION SR UNSEC CV 3.0% 11-15-28",
        "value": "150021844.70",
        "weight": "0.03272015",
        "shared": true
      },
      {
        "name": "State Street Navigator Securities Lending Portfolio II",
        "value": "145811916.20",
        "weight": "0.03180195",
        "shared": false
      },
      {
        "name": "Boeing Co. (The), Conv. Pfd.",
        "value": "94384634.16",
        "weight": "0.02058553",
        "shared": true
      },
      {
        "name": "BABA 0.5 06/01/31",
        "value": "90813310.40",
        "weight": "0.01980662",
        "shared": false
      },
      {
        "name": "LUMENTUM HOLDINGS INC SR UNSECURED 12/29 1.5",
        "value": "74103802.50",
        "weight": "0.01616223",
        "shared": false
      },
      {
        "name": "Lumentum Holdings Inc., Conv.",
        "value": "71648744.40",
        "weight": "0.01562678",
        "shared": true
      },
      {
        "name": "Lumentum Holdings, Inc.",
        "value": "58931191.64",
        "weight": "0.01285304",
        "shared": false
      },
      {
        "name": "Oracle Corp., Series D",
        "value": "58395974.00",
        "weight": "0.01273631",
        "shared": false
      },
      {
        "name": "Wells Fargo & Co., Series L, Conv. Pfd.",
        "value": "57301860.00",
        "weight": "0.01249768",
        "shared": false
      },
      {
        "name": "Bank of America Corp., Series L, Conv. Pfd.",
        "value": "47594481.08",
        "weight": "0.01038048",
        "shared": true
      },
      {
        "name": "ALBEMARLE CORP PFD",
        "value": "40244909.40",
        "weight": "0.00877752",
        "shared": true
      },
      {
        "name": "Lumentum Holdings, Inc.",
        "value": "40220902.23",
        "weight": "0.00877228",
        "shared": false
      },
      {
        "name": "GME 0 06/15/32",
        "value": "35544290.60",
        "weight": "0.00775230",
        "shared": false
      },
      {
        "name": "CRWV 1.75 12/01/31",
        "value": "33653752.96",
        "weight": "0.00733997",
        "shared": true
      },
      {
        "name": "BLOOM ENERGY CORP CONV 0% 11/15/2030 144A",
        "value": "33513547.40",
        "weight": "0.00730939",
        "shared": true
      },
      {
        "name": "DOORDASH INC SR UNSECURED 144A 05/30 0.0000",
        "value": "32912491.50",
        "weight": "0.00717830",
        "shared": true
      },
      {
        "name": "Akamai Technologies, Inc., Convertible",
        "value": "32312984.10",
        "weight": "0.00704754",
        "shared": true
      },
      {
        "name": "STRATEGY INC CONV 0% 12/01/2029 144A",
        "value": "32016780.00",
        "weight": "0.00698294",
        "shared": false
      },
      {
        "name": "MKS INC SR UNSECURED 06/30 1.25",
        "value": "29785719.86",
        "weight": "0.00649634",
        "shared": true
      },
      {
        "name": "NET 0 06/15/30",
        "value": "28654842.15",
        "weight": "0.00624969",
        "shared": true
      },
      {
        "name": "NEXTERA ENERGY INC PREFFERD STOCK",
        "value": "28628563.86",
        "weight": "0.00624396",
        "shared": false
      },
      {
        "name": "WELLTOWER OP LLC CV 144A SR UNSEC 2.75% 05-15-28",
        "value": "28275550.88",
        "weight": "0.00616697",
        "shared": false
      },
      {
        "name": "PG&E Corporation, Convertible",
        "value": "28238026.99",
        "weight": "0.00615879",
        "shared": false
      },
      {
        "name": "KKR & Company, Inc., Convertible, 6.250%",
        "value": "26798907.76",
        "weight": "0.00584491",
        "shared": true
      },
      {
        "name": "MPUS 3 03/01/30",
        "value": "26750185.20",
        "weight": "0.00583428",
        "shared": true
      },
      {
        "name": "The Southern Company",
        "value": "26676600.00",
        "weight": "0.00581823",
        "shared": false
      },
      {
        "name": "UBER TECHNOLOGIES INC SR UNSECURED 12/28 0.875",
        "value": "26466296.90",
        "weight": "0.00577237",
        "shared": true
      },
      {
        "name": "JD.COM INC SR UNSECURED 06/29 0.25",
        "value": "25815102.50",
        "weight": "0.00563034",
        "shared": false
      },
      {
        "name": "ZTS 0.25 06/15/29",
        "value": "25753592.34",
        "weight": "0.00561692",
        "shared": true
      },
      {
        "name": "Liberty Media Corporation",
        "value": "25455065.02",
        "weight": "0.00555182",
        "shared": false
      },
      {
        "name": "NextEra Energy Inc",
        "value": "24811108.50",
        "weight": "0.00541137",
        "shared": false
      },
      {
        "name": "HPE 7 5/8",
        "value": "24409035.76",
        "weight": "0.00532367",
        "shared": true
      },
      {
        "name": "Nebius Group NV 1.0%, Due 09/15/2030",
        "value": "24277551.20",
        "weight": "0.00529500",
        "shared": false
      },
      {
        "name": "NEBIUS GROUP NV CONV 2.75% 09/15/2032 144A",
        "value": "23898931.20",
        "weight": "0.00521242",
        "shared": false
      },
      {
        "name": "CHKP 0 12/15/30",
        "value": "23879962.20",
        "weight": "0.00520828",
        "shared": true
      },
      {
        "name": "GPN 1.5 03/01/31",
        "value": "23164444.98",
        "weight": "0.00505222",
        "shared": false
      },
      {
        "name": "STRATEGY INC CONV 0% 03/01/2030",
        "value": "22776341.50",
        "weight": "0.00496758",
        "shared": false
      },
      {
        "name": "SOUTHERN CO/THE SR UNSECURED 144A 06/28 3.25",
        "value": "22150279.12",
        "weight": "0.00483103",
        "shared": false
      },
      {
        "name": "RIVN 3.625 10/15/30",
        "value": "21814355.80",
        "weight": "0.00475777",
        "shared": true
      },
      {
        "name": "MICROCHIP TECHNOLOGY INC SER A 7.5% PC 03/15/2028",
        "value": "21624045.93",
        "weight": "0.00471626",
        "shared": true
      },
      {
        "name": "APOLLO GLOBAL MANAGEMENT PFD",
        "value": "21512169.26",
        "weight": "0.00469186",
        "shared": true
      },
      {
        "name": "NBIS 1.25 03/15/31",
        "value": "21458621.00",
        "weight": "0.00468018",
        "shared": false
      },
      {
        "name": "Welltower OP, LLC, Convertible",
        "value": "20970735.20",
        "weight": "0.00457377",
        "shared": true
      },
      {
        "name": "SUPER MICRO COMPUTER INC SR UNSECURED 144A 06/30 0.0000",
        "value": "20809382.80",
        "weight": "0.00453858",
        "shared": true
      },
      {
        "name": "SOFI TECHNOLOGIES INC CONV 1.25% 03/15/2029 144A",
        "value": "20711640.60",
        "weight": "0.00451726",
        "shared": false
      },
      {
        "name": "NEXTERA ENERGY INC PREFERRED STOCK 11/27 7.234",
        "value": "20201630.00",
        "weight": "0.00440603",
        "shared": false
      },
      {
        "name": "TRIP.COM GROUP LTD SR UNSECURED 06/29 0.75",
        "value": "20070305.45",
        "weight": "0.00437739",
        "shared": false
      },
      {
        "name": "EVRG 4.5 12/15/27",
        "value": "19989895.36",
        "weight": "0.00435985",
        "shared": false
      },
      {
        "name": "GME 0 04/01/30",
        "value": "19973068.50",
        "weight": "0.00435618",
        "shared": false
      },
      {
        "name": "STX 3.5 06/01/28",
        "value": "19950134.40",
        "weight": "0.00435118",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-034361",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/826732/000141036826034361/0001410368-26-034361-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-055595",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1064642/000141036826055595/0001410368-26-055595-index.htm"
    }
  ]
}