NPORT-P
    false
    
      
      
        
          0001329377
          XXXXXXXX
        
      
      
      
      
        S000012478
        C000033929
      
      
    
  
  
    
      First Trust Exchange-Traded Fund
      811-21774
      0001329377
      549300MZB4XDLRWOC672
      120 East Liberty Drive
      Suite 400
      Wheaton
      
      60187
      630-765-8000
      First Trust NYSE Arca Biotechnology Index Fund
      S000012478
      5493003ZQM0TVLDIBC50
      2022-12-31
      2022-06-30
      N
    
    
      1275660140.64
      925458.05
      1274734682.59
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      0.00000000
      1473860.23000000
      N
      
        
          
        
        
          
            
            
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
          
          
            
            
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
          
          
            
            
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
          
          
            
            
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
          
          
            
            
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
          
          
            
            
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
            
              
              
              
            
          
        
        
        
        
      
      
      
      
      
      
    
    
      
        ACADIA Pharmaceuticals Inc
        529900O3044NO0PEA039
        ACADIA Pharmaceuticals Inc
        004225108
        
          
          
        
        2044434.00000000
        NS
        USD
        28806075.06000000
        2.259770245010
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Exelixis Inc
        254900PJQB59O2O95R37
        Exelixis Inc
        30161Q104
        
          
          
        
        2077918.00000000
        NS
        USD
        43262252.76000000
        3.393824091465
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Grifols SA
        959800HSSNXWRKBK4N60
        Grifols SA
        398438408
        
          
          
        
        4459115.00000000
        NS
        USD
        52974286.20000000
        4.155710746989
        Long
        EC
        CORP
        ES
        N
        1
        
          N
          N
          N
        
      
      
        Vertex Pharmaceuticals Inc
        54930015RAQRRZ5ZGJ91
        Vertex Pharmaceuticals Inc
        92532F100
        
          
          
        
        166650.00000000
        NS
        USD
        46960303.50000000
        3.683927655014
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Seagen Inc
        N/A
        Seagen Inc
        81181C104
        
          
          
        
        320598.00000000
        NS
        USD
        56726610.12000000
        4.450071916513
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Bio-Techne Corp
        54930073RLKQ51TILZ35
        Bio-Techne Corp
        09073M104
        
          
          
        
        114692.00000000
        NS
        USD
        39756834.88000000
        3.118832132128
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Exact Sciences Corp
        549300VM3X1FYD4N9Z14
        Exact Sciences Corp
        30063P105
        
          
          
        
        689303.00000000
        NS
        USD
        27151645.17000000
        2.129984030467
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        BioNTech SE
        894500UZJ5LG1F8J1U58
        BioNTech SE
        09075V102
        
          
          
        
        277267.00000000
        NS
        USD
        41340509.70000000
        3.243067774386
        Long
        EC
        CORP
        DE
        N
        1
        
          N
          N
          N
        
      
      
        BioMarin Pharmaceutical Inc
        NSLL8ITTRR0J5HEMR848
        BioMarin Pharmaceutical Inc
        09061G101
        
          
          
        
        578461.00000000
        NS
        USD
        47937063.07000000
        3.760552193700
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Illumina Inc
        SQ95QG8SR5Q56LSNF682
        Illumina Inc
        452327109
        
          
          
        
        142404.00000000
        NS
        USD
        26253601.44000000
        2.059534568139
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Amgen Inc
        62QBXGPJ34PQ72Z12S66
        Amgen Inc
        031162100
        
          
          
        
        188972.00000000
        NS
        USD
        45976887.60000000
        3.606780942571
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Neurocrine Biosciences Inc
        549300FECER0XBN49756
        Neurocrine Biosciences Inc
        64125C109
        
          
          
        
        483399.00000000
        NS
        USD
        47121734.52000000
        3.696591546741
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Incyte Corp
        549300Z4WN6JVZ3T4680
        Incyte Corp
        45337C102
        
          
          
        
        586928.00000000
        NS
        USD
        44588920.16000000
        3.497898093539
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Gilead Sciences Inc
        549300WTZWR07K8MNV44
        Gilead Sciences Inc
        375558103
        
          
          
        
        776285.00000000
        NS
        USD
        47982175.85000000
        3.764091187392
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Agios Pharmaceuticals Inc
        529900ONJHY8EOGYT555
        Agios Pharmaceuticals Inc
        00847X104
        
          
          
        
        1719603.00000000
        NS
        USD
        38123598.51000000
        2.990708500418
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Regeneron Pharmaceuticals Inc
        549300RCBFWIRX3HYQ56
        Regeneron Pharmaceuticals Inc
        75886F107
        
          
          
        
        65428.00000000
        NS
        USD
        38676453.64000000
        3.034078712082
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        IQVIA Holdings Inc
        549300W3R20NM4KQPH86
        IQVIA Holdings Inc
        46266C105
        
          
          
        
        201287.00000000
        NS
        USD
        43677266.13000000
        3.426380934521
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Alnylam Pharmaceuticals Inc
        529900S3ZI14OWRJII50
        Alnylam Pharmaceuticals Inc
        02043Q107
        
          
          
        
        286729.00000000
        NS
        USD
        41819424.65000000
        3.280637549221
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Nektar Therapeutics
        5299005I24806IOIYE03
        Nektar Therapeutics
        640268108
        
          
          
        
        7789020.00000000
        NS
        USD
        29598276.00000000
        2.321916584230
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Biogen Inc
        W8J5WZB5IY3K0NDQT671
        Biogen Inc
        09062X103
        
          
          
        
        225918.00000000
        NS
        USD
        46073716.92000000
        3.614376979716
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        FibroGen Inc
        549300Q914ULWWY95822
        FibroGen Inc
        31572Q808
        
          
          
        
        4059234.00000000
        NS
        USD
        42865511.04000000
        3.362700617269
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Mettler-Toledo International I
        5493000BD5GJNUDIUG10
        Mettler-Toledo International Inc
        592688105
        
          
          
        
        36564.00000000
        NS
        USD
        42003626.28000000
        3.295087742859
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        QIAGEN NV
        54930036WK3GMCN17Z57
        QIAGEN NV
        000000000
        
          
          
        
        1022988.00000000
        NS
        USD
        48285033.60000000
        3.787849680366
        Long
        EC
        CORP
        NL
        
        N
        1
        
          N
          N
          N
        
      
      
        Sarepta Therapeutics Inc
        549300IKDPIED8J8IG21
        Sarepta Therapeutics Inc
        803607100
        
          
          
        
        589238.00000000
        NS
        USD
        44169280.48000000
        3.464978327118
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Ultragenyx Pharmaceutical Inc
        529900EV44GVDN1DCX77
        Ultragenyx Pharmaceutical Inc
        90400D108
        
          
          
        
        561911.00000000
        NS
        USD
        33523610.26000000
        2.629850016466
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        United Therapeutics Corp
        5299005C4HZL4UWROC14
        United Therapeutics Corp
        91307C102
        
          
          
        
        250165.00000000
        NS
        USD
        58948880.60000000
        4.624403917545
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Ionis Pharmaceuticals Inc
        549300SI4ZGLG0BLUZ92
        Ionis Pharmaceuticals Inc
        462222100
        
          
          
        
        1171161.00000000
        NS
        USD
        43356380.22000000
        3.401208173916
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Charles River Laboratories Int
        549300BSQ0R4UZ5KX287
        Charles River Laboratories International Inc
        159864107
        
          
          
        
        168573.00000000
        NS
        USD
        36069564.81000000
        2.829574287310
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Moderna Inc
        549300EI6OKH5K5Q2G38
        Moderna Inc
        60770K107
        
          
          
        
        289806.00000000
        NS
        USD
        41398787.10000000
        3.247639502197
        Long
        EC
        CORP
        US
        N
        1
        
          N
          N
          N
        
      
      
        Alkermes PLC
        N/A
        Alkermes PLC
        000000000
        
          
          
        
        1634163.00000000
        NS
        USD
        48681715.77000000
        3.818968483001
        Long
        EC
        CORP
        IE
        
        N
        1
        
          N
          N
          N
        
      
    
    
      
    
    
      2022-08-18
      First Trust Exchange-Traded Fund
      Donald P. Swade
      Donald P. Swade
      Treasurer, Chief Financial Officer and Chief Accounting Officer