NPORT-P
    false
    
      
      
        
          0001635073
          XXXXXXXX
        
      
      
      
      
        S000055814
        C000175726
      
      
      
    
  
  
    
      NuShares ETF Trust
      811-23161
      0001635073
      549300UWO63YZ5POLH71
      333 W. Wacker Dr
      Chicago
      
      60606
      312-917-7700
      Nuveen ESG Mid-Cap Value ETF
      S000055814
      5493007Z8DZNMHF3BS35
      2021-10-31
      2021-07-31
      N
    
    
      245898718.00
      664987.00
      245233731.00
      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
      0.00000000
      
        
      
      N
      
        
          
        
        
        
        
      
      
      
      
      
      
    
    
      
        Federal Agricultural Mortgage Corp Discount Notes
        N/A
        Federal Agricultural Mortgage Corp Discount Notes
        31315LJX7
        
          
        
        409000.00000000
        PA
        USD
        409000.00000000
        0.166779667027
        Long
        STIV
        USGSE
        US
        
        N
        
        2
        
          N
          N
          N
        
      
      
        ON Semiconductor Corp
        ZV20P4CNJVT8V1ZGJ064
        ON Semiconductor Corp
        682189105
        
          
        
        96359.00000000
        NS
        USD
        3763782.54000000
        1.534773591158
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Okta Inc
        549300N8J06I8MRHU620
        Okta Inc
        679295105
        
          
        
        6393.00000000
        NS
        USD
        1584121.47000000
        0.645963939601
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        VICI Properties Inc
        254900RKH6RY9KCJQH63
        VICI Properties Inc
        925652109
        
          
        
        140753.00000000
        NS
        USD
        4390086.07000000
        1.790164041503
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        CarMax Inc
        N/A
        CarMax Inc
        143130102
        
          
        
        12780.00000000
        NS
        USD
        1711881.00000000
        0.698060985745
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Annaly Capital Management Inc
        2DTL0G3FPRYUT58TI025
        Annaly Capital Management Inc
        035710409
        
          
        
        446306.00000000
        NS
        USD
        3789137.94000000
        1.545112870300
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Owens Corning
        JO5M6676RDJIZ2U8X907
        Owens Corning
        690742101
        
          
        
        28152.00000000
        NS
        USD
        2707096.32000000
        1.103884163471
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Kansas City Southern
        5493008C12PZMWP3WY03
        Kansas City Southern
        485170302
        
          
        
        17358.00000000
        NS
        USD
        4648472.40000000
        1.895527332657
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Campbell Soup Co
        5493007JDSMX8Z5Z1902
        Campbell Soup Co
        134429109
        
          
        
        58635.00000000
        NS
        USD
        2563522.20000000
        1.045338334798
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Autoliv Inc
        A23RUXWKASG834LTMK28
        Autoliv Inc
        052800109
        
          
        
        19863.00000000
        NS
        USD
        2003779.44000000
        0.817089652320
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Fortune Brands Home & Security Inc
        54930032LHW54PQUJD44
        Fortune Brands Home & Security Inc
        34964C106
        
          
        
        32564.00000000
        NS
        USD
        3174013.08000000
        1.294280793697
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Equitable Holdings Inc
        549300FIBAKMNHPZ4009
        Equitable Holdings Inc
        29452E101
        
          
        
        121905.00000000
        NS
        USD
        3763207.35000000
        1.534539043489
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Hasbro Inc
        549300NUB6D2R1ITYR45
        Hasbro Inc
        418056107
        
          
        
        42366.00000000
        NS
        USD
        4212875.04000000
        1.717901947183
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Regions Financial Corp
        CW05CS5KW59QTC0DG824
        Regions Financial Corp
        7591EP100
        
          
        
        10051.00000000
        NS
        USD
        193481.75000000
        0.078896874916
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        CH Robinson Worldwide Inc
        529900WNWN5L0OVDHA79
        CH Robinson Worldwide Inc
        12541W209
        
          
        
        14469.00000000
        NS
        USD
        1290200.73000000
        0.526110631167
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        FactSet Research Systems Inc
        549300ZSJE7NBK6K9P30
        FactSet Research Systems Inc
        303075105
        
          
        
        10992.00000000
        NS
        USD
        3927221.76000000
        1.601419896025
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Ventas Inc
        ORQTRC074CWLT3DKHT41
        Ventas Inc
        92276F100
        
          
        
        85972.00000000
        NS
        USD
        5139406.16000000
        2.095717476973
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Discovery Inc
        5493006ZCRFWKF6B1K26
        Discovery Inc
        25470F104
        
          
        
        8073.00000000
        NS
        USD
        234197.73000000
        0.095499803002
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          
        
      
      
        Genuine Parts Co
        549300D46DQVEU651W04
        Genuine Parts Co
        372460105
        
          
        
        25565.00000000
        NS
        USD
        3244709.80000000
        1.323109095461
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        UGI Corp
        DX6GCWD4Q1JO9CRE5I40
        UGI Corp
        902681105
        
          
        
        87002.00000000
        NS
        USD
        4001221.98000000
        1.631595280014
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        STERIS PLC
        N/A
        STERIS PLC
        G8473T100
        
          
        
        7002.00000000
        NS
        USD
        1526085.90000000
        0.622298528745
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Ally Financial Inc
        549300JBN1OSM8YNAI90
        Ally Financial Inc
        02005N100
        
          
        
        59181.00000000
        NS
        USD
        3039536.16000000
        1.239444568903
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Carrier Global Corp
        549300JE3W6CWY2NAN77
        Carrier Global Corp
        14448C104
        
          
        
        116500.00000000
        NS
        USD
        6436625.00000000
        2.624689912661
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Newell Brands Inc
        549300LWGYFM1TVO1Z12
        Newell Brands Inc
        651229106
        
          
        
        123591.00000000
        NS
        USD
        3058877.25000000
        1.247331367315
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        KeyCorp
        RKPI3RZGV1V1FJTH5T61
        KeyCorp
        493267108
        
          
        
        189392.00000000
        NS
        USD
        3723446.72000000
        1.518325682530
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Regency Centers Corp
        529900053A7X7FJ97S58
        Regency Centers Corp
        758849103
        
          
        
        60630.00000000
        NS
        USD
        3965808.30000000
        1.617154493318
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Hartford Financial Services Group Inc/The
        IU7C3FTM7Y3BQM112U94
        Hartford Financial Services Group Inc/The
        416515104
        
          
        
        67451.00000000
        NS
        USD
        4291232.62000000
        1.749854150365
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Mosaic Co/The
        2YD5STGSJNMUB7H76907
        Mosaic Co/The
        61945C103
        
          
        
        88483.00000000
        NS
        USD
        2763324.09000000
        1.126812400044
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Best Buy Co Inc
        HL5XPTVRV0O8TUN5LL90
        Best Buy Co Inc
        086516101
        
          
        
        17314.00000000
        NS
        USD
        1945227.90000000
        0.793213842185
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Conagra Brands Inc
        54930035UDEIH090K650
        Conagra Brands Inc
        205887102
        
          
        
        57675.00000000
        NS
        USD
        1931535.75000000
        0.787630536029
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Omnicom Group Inc
        HKUPACFHSSASQK8HLS17
        Omnicom Group Inc
        681919106
        
          
        
        31754.00000000
        NS
        USD
        2312326.28000000
        0.942907107668
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Loews Corp
        R8V1FN4M5ITGZOG7BS19
        Loews Corp
        540424108
        
          
        
        70629.00000000
        NS
        USD
        3787833.27000000
        1.544580859474
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Alexandria Real Estate Equities Inc
        MGCJBT4MKTQBVLNUIS88
        Alexandria Real Estate Equities Inc
        015271109
        
          
        
        27916.00000000
        NS
        USD
        5620607.44000000
        2.291938966585
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        PulteGroup Inc
        N/A
        PulteGroup Inc
        745867101
        
          
        
        73971.00000000
        NS
        USD
        4058788.77000000
        1.655069534459
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        ONEOK Inc
        2T3D6M0JSY48PSZI1Q41
        ONEOK Inc
        682680103
        
          
        
        90573.00000000
        NS
        USD
        4707078.81000000
        1.919425517364
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Snap-on Inc
        HHWAT5TDOYZMM26KKQ73
        Snap-on Inc
        833034101
        
          
        
        1414.00000000
        NS
        USD
        308223.72000000
        0.125685695333
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Lumen Technologies Inc
        8M3THTGWLTYZVE6BBY25
        Lumen Technologies Inc
        550241103
        
          
        
        194269.00000000
        NS
        USD
        2422534.43000000
        0.987847153049
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Allegion plc
        984500560CAC2E6FB757
        Allegion plc
        G0176J109
        
          
        
        5593.00000000
        NS
        USD
        764003.80000000
        0.311541074257
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Hewlett Packard Enterprise Co
        549300BX44RGX6ANDV88
        Hewlett Packard Enterprise Co
        42824C109
        
          
        
        193465.00000000
        NS
        USD
        2805242.50000000
        1.143905648118
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Robert Half International Inc
        529900VPCUY9H3HLIC08
        Robert Half International Inc
        770323103
        
          
        
        42105.00000000
        NS
        USD
        4135132.05000000
        1.686200357976
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        LKQ Corp
        DS830JTTZQN6GK0I2E41
        LKQ Corp
        501889208
        
          
        
        81605.00000000
        NS
        USD
        4141453.75000000
        1.688778184433
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        STATE STR NAVIGATOR SECS L TR
        N/A
        State Street Navigator Securities Lending Government Money Market Portfolio
        857509301
        
          
        
        167621.21000000
        NS
        USD
        167621.21000000
        0.068351612690
        Long
        STIV
        RF
        US
        
        N
        
        1
        
          
          N
          N
        
      
      
        Quest Diagnostics Inc
        8MCWUBXQ0WE04KMXBX50
        Quest Diagnostics Inc
        74834L100
        
          
        
        30443.00000000
        NS
        USD
        4316817.40000000
        1.760286964765
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Xylem Inc/NY
        549300DF5MV96DRYLQ48
        Xylem Inc/NY
        98419M100
        
          
        
        35436.00000000
        NS
        USD
        4459620.60000000
        1.818518432115
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Lincoln National Corp
        EFQMQROEDSNBRIP7LE47
        Lincoln National Corp
        534187109
        
          
        
        58293.00000000
        NS
        USD
        3592014.66000000
        1.464731073230
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Cardinal Health Inc
        CCU46N3GJMF4OK4N7U60
        Cardinal Health Inc
        14149Y108
        
          
        
        7997.00000000
        NS
        USD
        474861.86000000
        0.193636437395
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Voya Financial Inc
        549300T065Z4KJ686G75
        Voya Financial Inc
        929089100
        
          
        
        51514.00000000
        NS
        USD
        3317501.60000000
        1.352791716894
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Fastenal Co
        529900PP0C7H2HHPSJ32
        Fastenal Co
        311900104
        
          
        
        65620.00000000
        NS
        USD
        3594007.40000000
        1.465543661283
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Western Union Co/The
        28ID94QU1140NC23S047
        Western Union Co/The
        959802109
        
          
        
        121178.00000000
        NS
        USD
        2812541.38000000
        1.146881943414
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Baker Hughes Co
        N/A
        Baker Hughes Co
        05722G100
        
          
        
        146281.00000000
        NS
        USD
        3107008.44000000
        1.266958027074
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Skyworks Solutions Inc
        549300WZ3ORQ2BVKBD96
        Skyworks Solutions Inc
        83088M102
        
          
        
        21056.00000000
        NS
        USD
        3885042.56000000
        1.584220304506
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        CBRE Group Inc
        52990016II9MJ2OSWA10
        CBRE Group Inc
        12504L109
        
          
        
        36751.00000000
        NS
        USD
        3545001.46000000
        1.445560301001
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Amcor PLC
        549300GSODGFCDQ3DI89
        Amcor PLC
        G0250X107
        
          
        
        372444.00000000
        NS
        USD
        4305452.64000000
        1.755652708313
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Laboratory Corp of America Holdings
        OZ7UA8IXAIFILY2VZH07
        Laboratory Corp of America Holdings
        50540R409
        
          
        
        5807.00000000
        NS
        USD
        1719743.05000000
        0.701266927264
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Pentair PLC
        549300EVR9D56WPSRP15
        Pentair PLC
        G7S00T104
        
          
        
        19364.00000000
        NS
        USD
        1426545.88000000
        0.581708672042
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Jazz Pharmaceuticals PLC
        635400GAUMJCLEZRRV50
        Jazz Pharmaceuticals PLC
        G50871105
        
          
        
        9255.00000000
        NS
        USD
        1568907.60000000
        0.639760115218
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Atmos Energy Corp
        QVLWEGTD2S8GJMO8D383
        Atmos Energy Corp
        049560105
        
          
        
        41390.00000000
        NS
        USD
        4080640.10000000
        1.663979944096
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Duke Realty Corp
        254900E47KH1NFFKNF25
        Duke Realty Corp
        264411505
        
          
        
        43571.00000000
        NS
        USD
        2216892.48000000
        0.903991661734
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        SVB Financial Group
        549300D2KJ20JMXE7542
        SVB Financial Group
        78486Q101
        
          
        
        7877.00000000
        NS
        USD
        4332034.92000000
        1.766492277524
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Franklin Resources Inc
        RIFQSET379FOGTEFKS80
        Franklin Resources Inc
        354613101
        
          
        
        6878.00000000
        NS
        USD
        203244.90000000
        0.082878036056
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Host Hotels & Resorts Inc
        N6EL63S0K3PB1YFTDI24
        Host Hotels & Resorts Inc
        44107P104
        
          
        
        233015.00000000
        NS
        USD
        3711928.95000000
        1.513629032541
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Arthur J Gallagher & Co
        54930049QLLMPART6V29
        Arthur J Gallagher & Co
        363576109
        
          
        
        36011.00000000
        NS
        USD
        5016692.41000000
        2.045677969968
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        First Republic Bank/CA
        YWC0TIKBQM2JV8L4IV08
        First Republic Bank/CA
        33616C100
        
          
        
        4003.00000000
        NS
        USD
        780665.06000000
        0.318335107008
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Expeditors International of Washington Inc
        984500B055A804AB6E40
        Expeditors International of Washington Inc
        302130109
        
          
        
        817.00000000
        NS
        USD
        104780.25000000
        0.042726687545
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Bunge Ltd
        5493007M0RIN8HY3MM77
        Bunge Ltd
        G16962105
        
          
        
        44239.00000000
        NS
        USD
        3434273.57000000
        1.400408319033
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Interpublic Group of Cos Inc/The
        5493008IUOJ5VWTRC333
        Interpublic Group of Cos Inc/The
        460690100
        
          
        
        99343.00000000
        NS
        USD
        3512768.48000000
        1.432416521852
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Mohawk Industries Inc
        549300JI1115MG3Q6322
        Mohawk Industries Inc
        608190104
        
          
        
        15902.00000000
        NS
        USD
        3099299.80000000
        1.263814642203
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Discovery Inc
        5493006ZCRFWKF6B1K26
        Discovery Inc
        25470F302
        
          
        
        90854.00000000
        NS
        USD
        2463051.94000000
        1.004369150180
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Boston Properties Inc
        549300OF70FSEUQBT254
        Boston Properties Inc
        101121101
        
          
        
        39554.00000000
        NS
        USD
        4642848.52000000
        1.893234059224
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Principal Financial Group Inc
        CUMYEZJOAF02RYZ1JJ85
        Principal Financial Group Inc
        74251V102
        
          
        
        67353.00000000
        NS
        USD
        4184641.89000000
        1.706389195701
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        BorgWarner Inc
        549300DSFX2IE88NSX47
        BorgWarner Inc
        099724106
        
          
        
        41700.00000000
        NS
        USD
        2042466.00000000
        0.832865035193
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        DaVita Inc
        M2XHYMU3TZNEZURC6H66
        DaVita Inc
        23918K108
        
          
        
        623.00000000
        NS
        USD
        74915.75000000
        0.030548713545
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Masco Corp
        5GCSNMQXHEYA1JO8QN11
        Masco Corp
        574599106
        
          
        
        58557.00000000
        NS
        USD
        3496438.47000000
        1.425757564321
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        CMS Energy Corp
        549300IA9XFBAGNIBW29
        CMS Energy Corp
        125896100
        
          
        
        71484.00000000
        NS
        USD
        4416996.36000000
        1.801137364745
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        NortonLifeLock Inc
        YF6ZV0M6AU4FY94MK914
        NortonLifeLock Inc
        668771108
        
          
        
        109284.00000000
        NS
        USD
        2712428.88000000
        1.106058644110
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Splunk Inc
        549300XGDSGBP6UEI867
        Splunk Inc
        848637104
        
          
        
        33398.00000000
        NS
        USD
        4741848.04000000
        1.933603513947
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Citizens Financial Group Inc
        2138004JDDA4ZQUPFW65
        Citizens Financial Group Inc
        174610105
        
          
        
        86090.00000000
        NS
        USD
        3629554.40000000
        1.480038812442
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        IDEX Corp
        549300U5Y5EL6PHYLF13
        IDEX Corp
        45167R104
        
          
        
        16812.00000000
        NS
        USD
        3811112.28000000
        1.554073440247
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        ViacomCBS Inc
        5KYC8KF17ROCY24M3H09
        ViacomCBS Inc
        92556H206
        
          
        
        30556.00000000
        NS
        USD
        1250657.08000000
        0.509985749064
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Martin Marietta Materials Inc
        5299005MZ4WZECVATV08
        Martin Marietta Materials Inc
        573284106
        
          
        
        8569.00000000
        NS
        USD
        3113117.70000000
        1.269449225971
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Healthpeak Properties Inc
        PZ9HF5U52KPF0MH0QN75
        Healthpeak Properties Inc
        42250P103
        
          
        
        106255.00000000
        NS
        USD
        3928247.35000000
        1.601838105215
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Steel Dynamics Inc
        549300HGGKEL4FYTTQ83
        Steel Dynamics Inc
        858119100
        
          
        
        22734.00000000
        NS
        USD
        1465206.30000000
        0.597473395696
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Hologic Inc
        549300DYP6F5ZJL0LB74
        Hologic Inc
        436440101
        
          
        
        25361.00000000
        NS
        USD
        1903089.44000000
        0.776030863388
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
      
        Guidewire Software Inc
        549300WXSG0J8IXZCK32
        Guidewire Software Inc
        40171V100
        
          
        
        675.00000000
        NS
        USD
        77760.00000000
        0.031708525447
        Long
        EC
        CORP
        US
        
        N
        
        1
        
          N
          N
          N
        
      
    
    
      
    
    
      2021-07-31
      Nushares ETF Trust
      E. Scott Wickerham
      E. Scott Wickerham
      Funds Treasurer
    
  
  XXXX




Nuveen ESG Emerging Markets Equity ETF (NUEM)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.7%        
    COMMON STOCKS – 99.7%        
    Communication Services – 11.1%        
352,521   Axiata Group Bhd       $311,588
262   CD Projekt SA       12,572
23,166   Emirates Telecommunications Group Co PJSC, (2)       143,796
272   Globe Telecom Inc       10,121
2,805   Hellenic Telecommunications Organization SA       51,157
9,893   Info Edge India Ltd       693,274
45,789   MTN Group Ltd, (3)       329,941
3,936   NAVER Corp       1,483,378
4,548   NetEase Inc, ADR       464,851
96,585   Ooredoo QPSC       188,077
7,393   Orange Polska SA, (3)       14,709
5,065   SK Telecom Co Ltd       1,325,421
64,733   Telefonica Brasil SA       518,282
90,708   Tencent Holdings Ltd       5,591,045
56,389   TIM SA/Brazil       124,016
155,257   Turkcell Iletisim Hizmetleri AS       283,526
    Total Communication Services       11,545,754
    Consumer Discretionary  – 17.4%        
228,157   Alibaba Group Holding Ltd, (3)       5,548,908
10,479   Allegroeu SA, 144A, (3)       179,915
14,898   Americanas SA, (3)       142,117
200   Bajaj Auto Ltd       10,293
30,995   BYD Co Ltd       953,238
13,850   BYD Co Ltd       567,142
63,097   China Education Group Holdings Ltd       114,320
47,620   Chongqing Changan Automobile Co Ltd       135,544
7,032   Coway Co Ltd       524,534
346,807   Dongfeng Motor Group Co Ltd       307,035
3,670   Falabella SA       14,266
460   FF Group, (3), (4)       655
3,200   Guangdong Xinbao Electrical Appliances Holdings Co Ltd       10,341
266,987   Guangzhou Automobile Group Co Ltd       230,872
3,478   Hangzhou Robam Appliances Co Ltd       20,956
263   Hankook Tire & Technology Co Ltd       11,055
      1

Nuveen ESG Emerging Markets Equity ETF (NUEM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Consumer Discretionary (continued)        
2,444   Hero MotoCorp Ltd       $91,008
7,536   Jarir Marketing Co       404,288
36,789   JD Health International Inc, 144A, (3)       395,054
4,600   Joyoung Co Ltd       17,897
4,585   JUMBO SA       72,854
10,748   LG Electronics Inc       1,471,689
17,222   Li Auto Inc, ADR, (3)       575,043
4,700   Liaoning Cheng Da Co Ltd       14,199
6   LPP SA       21,569
7,726   Mahindra & Mahindra Ltd       77,151
75,875   Meituan, 144A, (3)       2,099,177
6,966   Naspers Ltd       1,343,796
24,474   NIO Inc, ADR, (3)       1,093,498
62,600   Shenzhen Overseas Chinese Town Co Ltd       62,461
590   Shenzhou International Group Holdings Ltd       13,028
19,900   Songcheng Performance Development Co Ltd       39,003
109,016   TCL Technology Group Corp       124,625
1,392   Trent Ltd       17,264
4,464   Vipshop Holdings Ltd, ADR, (3)       74,236
16,600   Wuchan Zhongda Group Co Ltd       15,022
5,442   XPeng Inc, ADR, (3)       220,564
17,395   Yum China Holdings Inc       1,081,795
    Total Consumer Discretionary       18,096,412
    Consumer Staples  – 5.8%        
7,755   Adecoagro SA, (3)       74,138
31,902   Almarai Co JSC       499,319
1,400   Angel Yeast Co Ltd       10,129
996   BGF retail Co Ltd       139,843
775   Britannia Industries Ltd       35,653
2,900   Chacha Food Co Ltd       16,926
12,753   Charoen Pokphand Foods PCL       10,088
19,279   China Feihe Ltd, 144A       37,014
54,379   China Mengniu Dairy Co Ltd       294,945
62,772   Coca-Cola Femsa SAB de CV       355,591
255,904   Dali Foods Group Co Ltd, 144A       138,634
152,941   Fomento Economico Mexicano SAB de CV       1,336,227
1,000   Fu Jian Anjoy Foods Co Ltd       25,006
36,839   Hindustan Unilever Ltd       1,155,096
46,780   Inner Mongolia Yili Industrial Group Co Ltd       241,629
2,034   Kuala Lumpur Kepong Bhd       8,926
2      

Shares   Description (1)       Value
    Consumer Staples (continued)        
10   LG Household & Health Care Ltd       $12,684
200   LG Household & Health Care Ltd       116,844
427   Nestle India Ltd       101,794
26,167   PPB Group Bhd       112,233
33,564   Savola Group       383,931
975,182   Unilever Indonesia Tbk PT       284,548
151,239   Uni-President China Holdings Ltd       151,799
24,123   Want Want China Holdings Ltd       16,266
15,661   X5 Retail Group NV, GDR       507,103
    Total Consumer Staples       6,066,366
    Energy – 2.7%        
132,141   Cosan SA       655,943
507,184   Dialog Group Bhd       330,511
34,251   Offshore Oil Engineering Co Ltd       21,830
38,242   Petronas Dagangan Bhd       166,742
62,520   Qatar Fuel QSC       308,908
319,952   Qatar Gas Transport Co Ltd       267,139
5,747   S-Oil Corp       491,137
144,014   Thai Oil PCL, (2)       192,793
92,983   Ultrapar Participacoes SA       319,391
    Total Energy       2,754,394
    Financials – 15.7%        
110,231   Axis Bank Ltd, (3)       1,050,094
161,901   B3 SA - Brasil Bolsa Balcao       479,686
123,879   Banco Bradesco SA       583,642
43,624   Banco Bradesco SA       175,018
4,115   Bancolombia SA       28,852
1,340   Bancolombia SA       9,638
82,658   Bandhan Bank Ltd, 144A       323,512
206,463   Bank Central Asia Tbk PT       426,131
11,022   Bank Polska Kasa Opieki SA, (3)       269,456
279,200   Cathay Financial Holding Co Ltd       542,126
2,778,539   China Construction Bank Corp       1,937,884
74,200   China Construction Bank Corp       66,115
55,520   China Merchants Bank Co Ltd       422,944
1,623   Credicorp Ltd, (3)       163,858
5,733   DB Insurance Co Ltd       284,594
138,979   First Abu Dhabi Bank PJSC       627,329
153,463   FirstRand Ltd       570,264
227,024   Fubon Financial Holding Co Ltd       608,861
      3

Nuveen ESG Emerging Markets Equity ETF (NUEM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Financials (continued)        
14,957   Grupo Financiero Banorte SAB de CV       $96,989
56,099   Huatai Securities Co Ltd, (3)       125,312
159,665   Industrial Bank Co Ltd       436,434
19,205   KB Financial Group Inc       856,524
14,167   Kotak Mahindra Bank Ltd, (3)       315,038
266,486   Kuwait Finance House KSCP       696,377
5,738   Malayan Banking Bhd       10,891
592,785   Old Mutual Ltd       523,543
2,447   OTP Bank Nyrt, (3)       132,317
123,585   Ping An Insurance Group Co of China Ltd       1,083,786
54,783   Ping An Insurance Group Co of China Ltd       454,830
12,906   Piramal Enterprises Ltd       403,058
380,571   Public Bank Bhd       358,927
3,947   Samsung Fire & Marine Insurance Co Ltd       736,041
47,760   Sanlam Ltd       188,967
26,230   Shinhan Financial Group Co Ltd       892,766
1,901   Standard Bank Group Ltd       16,055
77,272   State Bank of India       448,378
    Total Financials       16,346,237
    Health Care – 4.3%        
29,442   3SBio Inc, 144A, (3)       24,512
123,453   Alibaba Health Information Technology Ltd, (3)       191,902
1,828   BeiGene Ltd, ADR, (3)       578,727
5,255   CanSino Biologics Inc, 144A, (3)       222,475
634   CanSino Biologics Inc, (3)       59,728
6,734   Dr Sulaiman Al Habib Medical Services Group Co       307,756
23,510   Hartalega Holdings Bhd       39,220
3,821   Hutchmed China Ltd, ADR, (3)       160,673
2,649,234   Kalbe Farma Tbk PT       230,806
9,761   Notre Dame Intermedica Participacoes SA       151,713
6,640   Ovctek China Inc       93,636
5,000   Pharmaron Beijing Co Ltd       153,123
4,500   Shanghai Fosun Pharmaceutical Group Co Ltd       56,998
102,541   Supermax Corp Bhd       79,457
31,459   WuXi AppTec Co Ltd, 144A       695,473
19,683   WuXi AppTec Co Ltd       456,725
55,638   Wuxi Biologics Cayman Inc, 144A, (3)       848,402
9,720   Yunnan Baiyao Group Co Ltd       148,828
    Total Health Care       4,500,154
4      

Shares   Description (1)       Value
    Industrials – 5.7%        
364,631   Airports of Thailand PCL, (2)       $626,809
29,650   A-Living Smart City Services Co Ltd, 144A, (5)       113,317
54,052   CCR SA       136,519
139,219   China Lesso Group Holdings Ltd       289,860
156   CJ Corp       13,291
13,129   Contemporary Amperex Technology Co Ltd       1,117,846
14,018   Country Garden Services Holdings Co Ltd       113,732
10,713   Greentown Service Group Co Ltd       11,649
22,721   Grupo Aeroportuario del Pacifico SAB de CV       260,520
673   Grupo Aeroportuario del Sureste SAB de CV       12,206
7,491   GS Engineering & Construction Corp       286,876
6,079   Hyundai Heavy Industries Holdings Co Ltd       362,018
310,608   JG Summit Holdings Inc       347,985
13,433   LG Corp       1,100,099
2,991   Localiza Rent a Car SA       36,116
3,829   Rumo SA, (3)       15,369
154,761   Shenzhen International Holdings Ltd       203,926
1,155   Siemens Ltd       30,256
33,572   Sinotrans Ltd       24,149
77,071   WEG SA       534,710
95,481   Xinjiang Goldwind Science & Technology Co Ltd       178,892
16,925   Yutong Bus Co Ltd       29,716
52,902   Zoomlion Heavy Industry Science and Technology Co Ltd       62,277
38,379   Zoomlion Heavy Industry Science and Technology Co Ltd       32,990
    Total Industrials       5,941,128
    Information Technology – 22.0%        
22,100   360 Security Technology Inc, (3)       40,820
93,041   AAC Technologies Holdings Inc       557,322
12,380   Acer Inc       12,041
40,004   Asustek Computer Inc, (3)       502,106
35,506   Compal Electronics Inc       27,425
163,041   Delta Electronics Inc       1,673,262
17,354   Delta Electronics Thailand PCL, (2)       308,351
906   HCL Technologies Ltd       12,479
88,138   Infosys Ltd       1,907,495
387,456   Lenovo Group Ltd       360,972
29,848   LG Display Co Ltd, (3)       572,179
7,552   Lite-On Technology Corp       17,310
59,622   MediaTek Inc       1,940,140
3,024   Samsung SDI Co Ltd       1,948,084
      5

Nuveen ESG Emerging Markets Equity ETF (NUEM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Information Technology (continued)        
734   Samsung SDS Co Ltd       $116,457
68,253   Sunny Optical Technology Group Co Ltd       2,065,718
382,570   Taiwan Semiconductor Manufacturing Co Ltd       7,934,583
29,970   Tata Consultancy Services Ltd       1,275,663
17,421   Unisplendour Corp Ltd       71,038
68,557   Wipro Ltd       540,929
11,947   Wistron Corp       11,855
47,673   Yageo Corp, (3)       954,653
    Total Information Technology       22,850,882
    Materials – 9.6%        
166   Anglo American Platinum Ltd       21,758
5,265   Asian Paints Ltd       209,316
3,594,981   Barito Pacific Tbk PT       241,115
1,120   Berger Paints India Ltd       12,718
30,950   China Jushi Co Ltd       71,386
313,486   China Molybdenum Co Ltd       229,128
36,465   China Molybdenum Co Ltd       38,979
39,795   Empresas CMPC SA       85,997
8,552   Ganfeng Lithium Co Ltd       257,523
1,172   Ganfeng Lithium Co Ltd, 144A       25,141
146,860   Gerdau SA       878,803
33,677   Grasim Industries Ltd       704,110
2,700   Guangdong Hongda Blasting Co Ltd       13,081
2,058   Hanwha Solutions Corp, (3)       69,957
27,225   Impala Platinum Holdings Ltd       491,339
6,306   KGHM Polska Miedz SA       318,744
3,900   Kingfa Sci & Tech Co Ltd       12,126
51,500   Klabin SA, (3)       244,738
978   Korea Zinc Co Ltd       465,087
8,265   Kumba Iron Ore Ltd       439,574
517   Kumho Petrochemical Co Ltd       91,467
1,028   Lotte Chemical Corp       231,920
585,979   Merdeka Copper Gold Tbk PT, (3)       119,931
55,338   Nan Ya Plastics Corp       172,158
42,047   National Industrialization Co, (3)       242,613
66,800   Pangang Group Vanadium Titanium & Resources Co Ltd, (3)       29,554
10,443   Polymetal International PLC       226,939
8,658   Polyus PJSC, GDR       833,765
97   Polyus PJSC, GDR       9,341
247,894   PTT Global Chemical PCL, (2)       428,021
6      

Shares   Description (1)       Value
    Materials (continued)        
27,423   SABIC Agri-Nutrients Co       $940,326
55,160   Saudi Arabian Mining Co, (3)       1,028,073
90,800   Shandong Nanshan Aluminum Co Ltd       71,916
5,140   Shanghai Putailai New Energy Technology Co Ltd       101,760
3,600   Sinoma Science & Technology Co Ltd       14,262
7,999   Taiwan Cement Corp       15,045
40,716   UPL Ltd       442,396
9,225   Zhejiang Huayou Cobalt Co Ltd       186,943
    Total Materials       10,017,050
    Real Estate – 2.1%        
19,458   Ayala Land Inc       12,729
62,250   Cencosud Shopping SA       95,880
59,615   China Merchants Shekou Industrial Zone Holdings Co Ltd       86,318
262,072   China Overseas Land & Investment Ltd       549,693
15,292   China Overseas Property Holdings Ltd       14,306
107,503   China Vanke Co Ltd       280,129
28,900   China Vanke Co Ltd       92,363
79,398   DLF Ltd       360,260
11,954   Growthpoint Properties Ltd       12,053
187,511   Guangzhou R&F Properties Co Ltd       164,318
341,982   Shenzhen Investment Ltd       95,934
19,239   Shimao Group Holdings Ltd       37,927
342,016   SM Prime Holdings Inc       215,193
43,565   Wharf Holdings Ltd       147,717
    Total Real Estate       2,164,820
    Utilities – 3.3%        
5,689   Adani Green Energy Ltd, (3)       67,452
2,072   CPFL Energia SA       10,193
2,626,073   Enel Americas SA       364,960
83,512   ENN Energy Holdings Ltd       1,746,281
56,851   Interconexion Electrica SA ESP       320,943
401,891   Power Grid Corp of India Ltd       924,325
    Total Utilities       3,434,154
    Total Common Stocks (cost $89,834,582)       103,717,351
    
      7

Nuveen ESG Emerging Markets Equity ETF (NUEM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Principal Amount (000)   Description (1) Coupon Maturity Ratings (6) Value
    CORPORATE BONDS  –  0.0%        
    Food Products  –  0.0%        
$25   Britannia Industries Ltd 5.500% 6/03/24 N/R $337
25   Total Corporate Bonds (cost $0)       337
    
Shares   Description (1)       Value
    COMMON STOCK RIGHTS  –  0.0%        
    Information Technology  –  0.0%        
3,176   Legend Holdings Corp, (4)       $ —
    Total Common Stock Rights (cost $-)        —
    Total Long-Term Investments (cost $89,834,582)       103,717,688
    
Shares   Description (1) Coupon     Value
    INVESTMENTS PURCHASED WITH COLLATERAL FROM SECURITIES LENDING  –  0.1%      
    MONEY MARKET FUNDS  –  0.1%        
79,283   State Street Navigator Securities Lending Government Money Market Portfolio, (7) 0.050% (8)     $79,283
    Total Investments Purchased with Collateral from Securities Lending (cost $79,283)     79,283
    
Principal Amount (000)   Description (1) Coupon Maturity Ratings (6) Value
    SHORT-TERM INVESTMENTS – 0.1%        
    U.S. GOVERNMENT AND AGENCY OBLIGATIONS  –  0.1%        
$124   Federal Agricultural Mortgage Corp Discount Notes 0.000% 8/02/21 N/R $124,000
    Total Short-Term Investments (cost $124,000)       124,000
    Total Investments (cost $90,037,865) – 99.9%       103,920,971
    Other Assets Less Liabilities – 0.1%       97,252
    Net Assets – 100%       $104,018,223
8      

Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $102,016,926 $1,699,770 $655 $103,717,351
Corporate Bonds  — 337  — 337
Common Stock Rights  —  —  —*  —*
Investments Purchased with Collateral from Securities Lending 79,283  —  — 79,283
Short-Term Investments:        
U.S. Government and Agency Obligations  — 124,000  — 124,000
Total $102,096,209 $1,824,107 $655 $103,920,971
    
* Value equals zero as of the end of the reporting period.
      9

Nuveen ESG Emerging Markets Equity ETF (NUEM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) For fair value measurement disclosure purposes, investment classified as Level 2.  
(3) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
(4) Investment valued at fair value using methods determined in good faith by, or at the discretion of, the Board. For fair value measurement disclosure purposes, investment classified as Level 3.  
(5) Investment, or a portion of investment, is out on loan for securities lending. The total value of the securities out on loan as of the end of the reporting period was $72,119.  
(6) For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
(7) The Fund may loan securities representing up to one third of the fair value of its total assets (which includes collateral for securities on loan) to broker dealers, banks, and other institutions. The Fund maintains collateral equal to at least 100% of the fair value of the securities loaned. The cash collateral received by the Fund is invested in this money market fund.  
(8) The rate shown is the one-day yield as of the end of the reporting period.  
144A Investment is exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These investments may only be resold in transactions exempt from registration, which are normally those transactions with qualified institutional buyers.  
ADR American Depositary Receipt  
GDR Global Depositary Receipt  
10      

Nuveen ESG International Developed Markets Equity ETF (NUDM)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.7%        
    COMMON STOCKS – 99.7%        
    Communication Services – 4.5%        
24,280   KDDI Corp       $737,139
20,263   Nippon Telegraph & Telephone Corp       517,422
641,763   Singapore Telecommunications Ltd, (2)       1,075,845
26,490   SoftBank Corp       345,034
54,284   Telenor ASA       942,536
125,397   Telia Co AB       550,755
23,383   Vivendi SE       790,235
439,979   Vodafone Group PLC       710,702
70,651   Z Holdings Corp       351,807
    Total Communication Services       6,021,475
    Consumer Discretionary  – 13.5%        
13,200   Accor SA, (2)       467,385
4,396   Bayerische Motoren Werke AG       377,405
15,192   Bayerische Motoren Werke AG       1,511,071
12,069   Cie Financiere Richemont SA       1,544,747
44,269   Compass Group PLC, (2)       936,166
8,528   Delivery Hero SE, 144A, (2)       1,276,198
13,847   Denso Corp       943,993
6,748   EssilorLuxottica SA       1,273,563
2,857   H & M Hennes & Mauritz AB       59,809
1,201   HelloFresh SE, (2)       112,621
18,718   Industria de Diseno Textil SA       634,578
378   Kering SA       338,953
42,605   Mazda Motor Corp, (2)       416,151
7,963   Mercari Inc, (2)       415,019
5,476   Ocado Group PLC, (2)       141,232
5,615   Oriental Land Co Ltd/Japan       764,868
133,861   Panasonic Corp       1,592,306
27,122   Sony Group Corp       2,811,050
6,411   Valeo       185,341
47,786   Wesfarmers Ltd       2,147,549
360   Whitbread PLC, (2)       15,246
763   Yamaha Motor Co Ltd       18,938
    Total Consumer Discretionary       17,984,189
      11

Nuveen ESG International Developed Markets Equity ETF (NUDM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Consumer Staples  – 12.2%        
27,608   Associated British Foods PLC       $770,383
808   Carrefour SA       15,004
15,924   Coca-Cola Europacific Partners PLC       988,243
15,584   Coca-Cola HBC AG       589,132
25,304   Danone SA       1,862,140
140   Henkel AG & Co KGaA       12,725
10,712   Jeronimo Martins SGPS SA       218,162
13,989   Kao Corp       837,938
2,078   Kerry Group PLC       308,012
5,495   Kikkoman Corp       334,456
5,275   L'Oreal SA       2,413,841
30,927   Mowi ASA       788,328
35,902   Nestle SA       4,547,666
42,175   Orkla ASA       383,329
9,569   Reckitt Benckiser Group PLC       734,794
460,200   Tesco PLC       1,490,825
    Total Consumer Staples       16,294,978
    Energy – 1.8%        
18,561   Ampol Ltd       385,422
5,389   Koninklijke Vopak NV       228,069
29,759   Neste Oyj       1,828,636
    Total Energy       2,442,127
    Financials – 18.2%        
62,301   3i Group PLC       1,108,305
3,719   Aegon NV       15,850
4,187   Allianz SE       1,042,638
50,042   Assicurazioni Generali SpA       999,876
160,522   Aviva PLC       864,383
74,062   AXA SA       1,921,561
253,886   Banco Bilbao Vizcaya Argentaria SA       1,629,025
88,328   Bank Hapoalim BM, (2)       706,252
6,149   BNP Paribas SA       375,147
287,998   BOC Hong Kong Holdings Ltd       926,491
194,705   CaixaBank SA       578,357
10,083   Commonwealth Bank of Australia       738,557
14,005   DBS Group Holdings Ltd       314,520
10,272   DNB Bank ASA, (2)       210,501
10,955   Erste Group Bank AG       424,917
816   Hang Seng Bank Ltd       15,656
37,950   Hong Kong Exchanges & Clearing Ltd       2,422,174
12      

Shares   Description (1)       Value
    Financials (continued)        
77,209   ING Groep NV       $992,999
687,512   Intesa Sanpaolo SpA       1,900,759
1   Isracard Ltd, (2)       3
472   KBC Group NV       38,004
86,303   Legal & General Group PLC       313,657
726,072   Lloyds Banking Group PLC       460,683
34,633   MS&AD Insurance Group Holdings Inc       1,066,602
238,577   Nomura Holdings Inc, (2)       1,191,472
114,921   QBE Insurance Group Ltd       919,908
166,295   Resona Holdings Inc       622,906
26,283   Sumitomo Mitsui Trust Holdings Inc       861,172
6,322   Swiss Re AG       572,140
2,914   Tokyo Century Corp       159,308
48,893   UBS Group AG       805,982
    Total Financials       24,199,805
    Health Care – 10.9%        
73,975   Astellas Pharma Inc       1,172,141
15,054   AstraZeneca PLC       1,730,520
41,774   Chugai Pharmaceutical Co Ltd       1,530,127
2,054   Cochlear Ltd       370,413
14,411   Eisai Co Ltd       1,179,535
790   Fisher & Paykel Healthcare Corp Ltd       17,396
56   Genmab A/S, (2)       25,309
123,232   GlaxoSmithKline PLC       2,429,196
8,747   Kyowa Kirin Co Ltd       283,331
2,970   Merck KGaA       608,043
3,701   NMC Health PLC, (2), (3)       5
7,807   Novo Nordisk A/S       721,845
9,004   Ramsay Health Care Ltd       424,504
4,112   Roche Holding AG       1,589,583
2,489   Roche Holding AG       1,068,323
15,062   Ryman Healthcare Ltd       138,555
120   Straumann Holding AG       222,443
13,977   Sumitomo Dainippon Pharma Co Ltd       240,570
21,244   Terumo Corp       820,144
    Total Health Care       14,571,983
    Industrials – 17.3%        
44,932   ABB Ltd       1,642,499
4,289   Adecco Group AG       256,876
324   Alstom SA, (2)       13,432
      13

Nuveen ESG International Developed Markets Equity ETF (NUDM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Industrials (continued)        
13,116   Ashtead Group PLC       $982,182
2,007   Assa Abloy AB       64,403
294   Atlas Copco AB       19,887
18,512   Atlas Copco AB       1,051,884
9,843   Auckland International Airport Ltd, (2)       49,738
17,783   Bouygues SA       685,119
39,843   Brambles Ltd       340,310
52,747   CNH Industrial NV       879,416
17,675   Dai Nippon Printing Co Ltd       413,249
10,456   Daikin Industries Ltd       2,159,319
2,619   DCC PLC       219,426
5,097   Deutsche Post AG       345,174
7,163   East Japan Railway Co       475,140
3,501   Eiffage SA       356,779
2,849   Ferguson PLC       399,676
45,603   Komatsu Ltd       1,175,498
119,767   MTR Corp Ltd       709,706
4,150   MTU Aero Engines AG       1,038,838
60,327   Nibe Industrier AB       720,775
77,763   RELX PLC       2,285,610
6,700   Schneider Electric SE       1,122,609
5,601   Secom Co Ltd       421,236
10   SGS SA       32,362
15,487   Siemens AG       2,416,399
30,833   Smiths Group PLC       666,822
170,920   Transurban Group       1,796,577
10,292   Vestas Wind Systems A/S       379,332
    Total Industrials       23,120,273
    Information Technology – 7.4%        
3,703   ASML Holding NV       2,805,860
858   Azbil Corp       33,265
3,020   CyberArk Software Ltd, (2)       428,931
2,846   Fujitsu Ltd       481,421
8,199   Ibiden Co Ltd       431,054
23,878   Infineon Technologies AG       909,887
1,446   Logitech International SA       158,050
1,084   Omron Corp       92,054
14,097   SAP SE       2,019,988
21,840   Sinch AB, 144A, (2)       441,415
30,621   Telefonaktiebolaget LM Ericsson       351,867
14      

Shares   Description (1)       Value
    Information Technology (continued)        
2,171   Tokyo Electron Ltd       $888,577
1,252   Wixcom Ltd, (2)       373,897
4,251   Xero Ltd, (2)       438,333
    Total Information Technology       9,854,599
    Materials – 8.6%        
7,921   Akzo Nobel NV       977,782
30,723   Antofagasta PLC       638,386
140   Arkema SA       17,805
97,474   Asahi Kasei Corp       1,054,229
21,181   Boliden AB       825,912
5,427   Covestro AG, 144A       349,181
3,704   Evolution Mining Ltd       11,381
47,814   Fortescue Metals Group Ltd       875,479
16,678   Hitachi Metals Ltd, (2)       325,050
6,276   Nitto Denko Corp       463,195
32,548   Northern Star Resources Ltd       244,507
31,452   Orica Ltd       286,442
2,777   Sika AG       977,757
19,072   Smurfit Kappa Group PLC       1,075,823
116,071   Sumitomo Chemical Co Ltd       599,656
19,192   Sumitomo Metal Mining Co Ltd       772,576
25,825   Svenska Cellulosa AB SCA       480,236
107,967   Toray Industries Inc       705,548
12,544   Umicore SA       777,648
    Total Materials       11,458,593
    Real Estate – 2.8%        
1,974   British Land Co PLC       14,014
205,438   CapitaLand Ltd       611,413
2,504   City Developments Ltd       12,667
16,069   Klepierre SA       389,667
53,770   Lendlease Corp Ltd       481,003
35,140   Mitsui Fudosan Co Ltd       817,265
91,275   Swire Properties Ltd       259,571
9,048   Unibail-Rodamco-Westfield, (2)       752,862
276,974   Vicinity Centres       316,582
    Total Real Estate       3,655,044
    Utilities – 2.5%        
142,642   National Grid PLC       1,832,696
      15

Nuveen ESG International Developed Markets Equity ETF (NUDM) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Utilities (continued)        
10,257   Orsted AS, 144A       $1,522,959
    Total Utilities       3,355,655
    Total Long-Term Investments (cost $118,359,544)       132,958,721
    
Principal Amount (000)   Description (1) Coupon Maturity Ratings (4) Value
    SHORT-TERM INVESTMENTS – 0.1%        
    U.S. GOVERNMENT AND AGENCY OBLIGATIONS  –  0.1%        
$143   Federal Agricultural Mortgage Corp Discount Notes 0.000% 8/02/21 N/R $143,000
    Total Short-Term Investments (cost $143,000)       143,000
    Total Investments (cost $118,502,544) – 99.8%       133,101,721
    Other Assets Less Liabilities – 0.2%       264,384
    Net Assets – 100%       $133,366,105
Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $132,958,716 $ — $5 $132,958,721
Short-Term Investments:        
U.S. Government and Agency Obligations  — 143,000  — 143,000
Total $132,958,716 $143,000 $5 $133,101,721
16      

  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
(3) Investment valued at fair value using methods determined in good faith by, or at the discretion of, the Board. For fair value measurement disclosure purposes, investment classified as Level 3.  
(4) For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
144A Investment is exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These investments may only be resold in transactions exempt from registration, which are normally those transactions with qualified institutional buyers.  
      17

Nuveen ESG Large-Cap ETF (NULC)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.8%        
    COMMON STOCKS – 99.8%        
    Communication Services – 10.0%        
1,605   Activision Blizzard Inc       $134,210
335   Alphabet Inc, Class A, (2)       902,668
201   Alphabet Inc, Class C, (2)       543,588
189   Discovery Inc, (2)       5,483
2,038   Discovery Inc, (2)       55,250
2   Electronic Arts Inc       288
7,554   Verizon Communications Inc       421,362
1,718   ViacomCBS Inc       70,318
3,063   Walt Disney Co, (2)       539,149
    Total Communication Services       2,672,316
    Consumer Discretionary  – 11.6%        
169   Booking Holdings Inc, (2)       368,126
97   Domino's Pizza Inc       50,973
17   Hasbro Inc       1,690
768   Home Depot Inc       252,050
3   Lowe's Cos Inc       578
63   Lululemon Athletica Inc, (2)       25,211
1,418   McDonald's Corp       344,163
265   MercadoLibre Inc, (2)       415,705
2,565   Newell Brands Inc       63,484
2,208   NIKE Inc, Class B       369,862
974   Starbucks Corp       118,273
1,421   Target Corp       370,952
729   Tesla Inc, (2)       500,969
3,208   TJX Cos Inc       220,742
    Total Consumer Discretionary       3,102,778
    Consumer Staples  – 6.6%        
2   Archer-Daniels-Midland Co       119
7   Clorox Co       1,266
8,479   Coca-Cola Co       483,557
16   Hormel Foods Corp       742
3,309   Keurig Dr Pepper Inc       116,510
4,838   Kroger Co       196,907
2   Lamb Weston Holdings Inc       134
18      

Shares   Description (1)       Value
    Consumer Staples (continued)        
3,047   PepsiCo Inc       $478,227
3,466   Procter & Gamble Co       492,969
    Total Consumer Staples       1,770,431
    Energy – 1.9%        
4,877   Baker Hughes Co       103,587
1,619   Cheniere Energy Inc, (2)       137,502
1,605   ONEOK Inc       83,412
2,733   Valero Energy Corp       183,029
    Total Energy       507,530
    Financials – 12.1%        
1,293   American Express Co       220,495
5,546   American International Group Inc       262,603
1,269   Annaly Capital Management Inc       10,774
6   Arthur J Gallagher & Co       836
546   Bank of New York Mellon Corp       28,026
1   BlackRock Inc       867
2,286   Charles Schwab Corp       155,334
561   Chubb Ltd       94,663
5,445   Citigroup Inc       368,191
987   CME Group Inc       209,372
4   First Republic Bank/CA       780
6,772   Huntington Bancshares Inc/OH       95,350
1,063   Intercontinental Exchange Inc       127,379
1,331   Loews Corp       71,382
253   MarketAxess Holdings Inc       120,218
2,671   Marsh & McLennan Cos Inc       393,225
2,711   Morgan Stanley       260,202
1,859   PNC Financial Services Group Inc       339,100
618   Progressive Corp       58,809
6   Regions Financial Corp       116
8   Reinsurance Group of America Inc       881
949   S&P Global Inc       406,855
3   State Street Corp       261
4   Truist Financial Corp       218
    Total Financials       3,225,937
    Health Care – 12.7%        
297   10X Genomics Inc, (2)       54,419
48   ABIOMED Inc, (2)       15,703
938   Agilent Technologies Inc       143,730
      19

Nuveen ESG Large-Cap ETF (NULC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Health Care (continued)        
447   Align Technology Inc, (2)       $311,023
850   Amgen Inc       205,309
593   Anthem Inc       227,718
11   Baxter International Inc       851
114   Biogen Inc, (2)       37,247
529   BioMarin Pharmaceutical Inc, (2)       40,590
3,601   Bristol-Myers Squibb Co       244,400
38   Cerner Corp       3,055
393   Cigna Corp       90,190
1,384   Danaher Corp       411,726
987   DENTSPLY SIRONA Inc       65,181
2   Dexcom Inc, (2)       1,031
1,536   Edwards Lifesciences Corp, (2)       172,447
1,314   Elanco Animal Health Inc, (2)       47,922
982   Eli Lilly & Co       239,117
731   Exact Sciences Corp, (2)       78,831
1,442   Gilead Sciences Inc       98,474
936   HCA Inc       232,315
33   Hologic Inc, (2)       2,476
2   Humana Inc       852
52   IDEXX Laboratories Inc, (2)       35,284
2   Illumina Inc, (2)       991
3   Insulet Corp, (2)       839
1   Intuitive Surgical Inc, (2)       991
3   Laboratory Corp of America Holdings, (2)       888
4   Novavax Inc, (2)       717
615   Novocure Ltd, (2)       94,716
905   Teladoc Health Inc, (2)       134,347
719   Thermo Fisher Scientific Inc       388,267
13   Vertex Pharmaceuticals Inc, (2)       2,621
50   Viatris Inc       704
    Total Health Care       3,384,972
    Industrials – 9.1%        
1,916   3M Co       379,253
2   AMERCO       1,176
4,790   Carrier Global Corp       264,647
859   Caterpillar Inc       177,598
2   CH Robinson Worldwide Inc       178
10,876   CSX Corp       351,512
135   Deere & Co       48,815
20      

Shares   Description (1)       Value
    Industrials (continued)        
4   Emerson Electric Co       $404
2   Expeditors International of Washington Inc       257
2   Fastenal Co       110
932   Fortive Corp       67,719
923   Fortune Brands Home & Security Inc       89,965
2   Generac Holdings Inc, (2)       839
379   IHS Markit Ltd       44,282
4   Illinois Tool Works Inc       907
150   Johnson Controls International plc       10,713
267   Kansas City Southern       71,503
350   Nordson Corp       79,145
96   Old Dominion Freight Line Inc       25,838
4   Otis Worldwide Corp       358
864   Parker-Hannifin Corp       269,594
77   Robert Half International Inc       7,562
777   Rockwell Automation Inc       238,865
162   Roper Technologies Inc       79,597
310   Teledyne Technologies Inc, (2)       140,359
46   Verisk Analytics Inc       8,737
607   Waste Connections Inc       76,901
    Total Industrials       2,436,834
    Information Technology – 27.4%        
701   Adobe Inc, (2)       435,763
1,730   Applied Materials Inc       242,079
290   Autodesk Inc, (2)       93,128
985   Automatic Data Processing Inc       206,486
2,736   Cisco Systems Inc       151,492
1,178   Cognex Corp       106,503
8,702   Hewlett Packard Enterprise Co       126,179
8,340   HP Inc       240,776
8,399   Intel Corp       451,194
2,759   International Business Machines Corp       388,909
2   Intuit Inc       1,060
1,245   Keysight Technologies Inc, (2)       204,865
2   Lam Research Corp       1,275
5,095   Microsoft Corp       1,451,616
2,849   NVIDIA Corp       555,526
811   Okta Inc, (2)       200,958
2   ON Semiconductor Corp, (2)       78
457   PayPal Holdings Inc, (2)       125,917
      21

Nuveen ESG Large-Cap ETF (NULC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Information Technology (continued)        
2,182   salesforce.com Inc, (2)       $527,891
497   ServiceNow Inc, (2)       292,181
2,312   Texas Instruments Inc       440,713
1,674   Trimble Inc, (2)       143,127
2,523   Visa Inc, Class A       621,642
564   VMware Inc, (2)       86,709
358   Zebra Technologies Corp, (2)       197,788
    Total Information Technology       7,293,855
    Materials – 2.8%        
2,239   Amcor PLC       25,883
1,183   Ball Corp       95,681
235   DuPont de Nemours Inc       17,637
1,012   Ecolab Inc       223,480
668   LyondellBasell Industries NV       66,352
2,419   Mosaic Co       75,545
495   Newmont Corp       31,096
1,099   PPG Industries Inc       179,709
416   Steel Dynamics Inc       26,811
    Total Materials       742,194
    Real Estate – 3.6%        
1,326   American Tower Corp       374,993
403   Crown Castle International Corp       77,815
422   Equinix Inc       346,213
4,708   Host Hotels & Resorts Inc, (2)       74,998
213   Prologis Inc       27,273
738   Welltower Inc       64,103
    Total Real Estate       965,395
    Utilities – 2.0%        
2,296   Consolidated Edison Inc       169,376
273   Eversource Energy       23,552
2,122   Sempra Energy       277,239
1,232   UGI Corp       56,660
    Total Utilities       526,827
    Total Long-Term Investments (cost $20,340,374)       26,629,069
    Other Assets Less Liabilities – 0.2%       48,141
    Net Assets – 100%       $26,677,210
22      

Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $26,629,069 $ — $ — $26,629,069
    
  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
      23

Nuveen ESG Large-Cap Growth ETF (NULG)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.9%        
    COMMON STOCKS – 99.9%        
    Communication Services – 14.2%        
121,191   Activision Blizzard Inc       $10,133,991
15,723   Alphabet Inc, Class A, (2)       42,366,095
11,617   Alphabet Inc, Class C, (2)       31,417,247
2,133   Cable One Inc       4,027,083
30,116   Electronic Arts Inc       4,335,499
123,732   Walt Disney Co, (2)       21,779,307
    Total Communication Services       114,059,222
    Consumer Discretionary  – 15.5%        
14,268   Aptiv PLC, (2)       2,380,616
5,609   Booking Holdings Inc, (2)       12,217,860
749   Chipotle Mexican Grill Inc, (2)       1,395,717
15,281   Domino's Pizza Inc       8,030,013
24,287   Etsy Inc, (2)       4,456,907
9,133   Lowe's Cos Inc       1,759,838
8,413   MercadoLibre Inc, (2)       13,197,473
115,042   NIKE Inc, Class B       19,270,686
126,340   Starbucks Corp       15,341,466
45,645   Tesla Inc, (2)       31,367,244
115,867   TJX Cos Inc       7,972,808
28,811   Wayfair Inc, (2)       6,953,823
    Total Consumer Discretionary       124,344,451
    Consumer Staples  – 3.2%        
31,289   Church & Dwight Co Inc       2,709,002
25,848   Clorox Co       4,675,645
34,474   Costco Wholesale Corp       14,814,167
56,061   Lamb Weston Holdings Inc       3,743,193
    Total Consumer Staples       25,942,007
    Energy – 0.4%        
144,525   Baker Hughes Co       3,069,711
    Financials – 4.2%        
14,963   MarketAxess Holdings Inc       7,109,969
70,044   Marsh & McLennan Cos Inc       10,311,878
33,155   S&P Global Inc       14,214,211
24      

Shares   Description (1)       Value
    Financials (continued)        
3,902   SVB Financial Group, (2)       $2,145,944
    Total Financials       33,782,002
    Health Care – 10.9%        
1,243   ABIOMED Inc, (2)       406,635
20,447   Agilent Technologies Inc       3,133,094
18,032   Dexcom Inc, (2)       9,295,676
97,914   Edwards Lifesciences Corp, (2)       10,992,805
70,549   Eli Lilly & Co       17,178,682
5,957   Hologic Inc, (2)       447,013
24,511   Horizon Therapeutics Plc, (2)       2,451,590
2,351   IDEXX Laboratories Inc, (2)       1,595,224
8,325   Illumina Inc, (2)       4,127,119
17,721   Insulet Corp, (2)       4,956,386
43,644   Teladoc Health Inc, (2)       6,478,952
29,627   Thermo Fisher Scientific Inc       15,998,876
51,270   Vertex Pharmaceuticals Inc, (2)       10,335,007
    Total Health Care       87,397,059
    Industrials – 6.4%        
34,877   Deere & Co       12,611,174
9,607   Expeditors International of Washington Inc       1,232,098
6,768   Fastenal Co       370,683
4,304   Generac Holdings Inc, (2)       1,804,925
10,269   Nordson Corp       2,322,129
19,452   Old Dominion Freight Line Inc       5,235,506
56,891   Otis Worldwide Corp       5,094,589
22,883   Rockwell Automation Inc       7,034,692
14,449   Roper Technologies Inc       7,099,372
18,266   Teledyne Technologies Inc, (2)       8,270,297
    Total Industrials       51,075,465
    Information Technology – 40.4%        
37,247   Adobe Inc, (2)       23,153,853
107,987   Applied Materials Inc       15,110,621
25,896   Autodesk Inc, (2)       8,315,982
69,378   Cognex Corp       6,272,465
70,989   Keysight Technologies Inc, (2)       11,681,240
9,901   Lam Research Corp       6,310,996
105,582   Maxim Integrated Products Inc, (2)       10,548,698
318,376   Microsoft Corp       90,708,506
160,240   NVIDIA Corp       31,245,198
      25

Nuveen ESG Large-Cap Growth ETF (NULG) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Information Technology (continued)        
31,036   Okta Inc, (2)       $7,690,410
71,534   PayPal Holdings Inc, (2)       19,709,763
68,838   salesforce.com Inc, (2)       16,653,977
26,468   ServiceNow Inc, (2)       15,560,273
35,002   Synopsys Inc, (2)       10,080,226
98,543   Trimble Inc, (2)       8,425,426
106,033   Visa Inc, Class A       26,125,471
33,130   VMware Inc, (2)       5,093,406
20,535   Zebra Technologies Corp, (2)       11,345,177
    Total Information Technology       324,031,688
    Materials – 2.9%        
814   Ball Corp       65,836
49,914   Ecolab Inc       11,022,509
41,305   Sherwin-Williams Co       12,020,994
    Total Materials       23,109,339
    Real Estate – 1.8%        
26,519   American Tower Corp       7,499,573
8,738   Equinix Inc       7,168,743
    Total Real Estate       14,668,316
    Total Long-Term Investments (cost $643,576,930)       801,479,260
    
Principal Amount (000)   Description (1) Coupon Maturity Ratings (3) Value
    SHORT-TERM INVESTMENTS – 0.1%        
    U.S. GOVERNMENT AND AGENCY OBLIGATIONS  –  0.1%        
$830   Federal Agricultural Mortgage Corp Discount Notes 0.000% 8/02/21 N/R $830,000
    Total Short-Term Investments (cost $830,000)       830,000
    Total Investments (cost $644,406,930) – 100.0%       802,309,260
    Other Assets Less Liabilities – (0.0)%       (117,116)
    Net Assets – 100%       $802,192,144
26      

Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $801,479,260 $ — $ — $801,479,260
Short-Term Investments:        
U.S. Government and Agency Obligations  — 830,000  — 830,000
Total $801,479,260 $830,000 $ — $802,309,260
    
  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
(3) For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
      27

Nuveen ESG Large-Cap Value ETF (NULV)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.7%        
    COMMON STOCKS – 99.7%        
    Communication Services – 5.7%        
808,666   AT&T Inc       $22,683,081
102,723   Discovery Inc, (2)       2,784,821
178,715   Interpublic Group of Cos Inc       6,319,362
63,418   Omnicom Group Inc       4,618,099
403,142   Verizon Communications Inc       22,487,261
26,142   ViacomCBS Inc       1,069,992
    Total Communication Services       59,962,616
    Consumer Discretionary  – 4.8%        
2,236   BorgWarner Inc       109,519
926   Genuine Parts Co       117,528
49,029   Hasbro Inc       4,875,444
77,737   Home Depot Inc       25,512,506
207,747   Newell Brands Inc       5,141,738
27,424   Target Corp       7,159,035
101,268   VF Corp       8,121,694
    Total Consumer Discretionary       51,037,464
    Consumer Staples  – 11.1%        
1,678   Archer-Daniels-Midland Co       100,210
48,591   Bunge Ltd       3,772,119
464,318   Coca-Cola Co       26,480,056
7,091   Colgate-Palmolive Co       563,735
82,473   General Mills Inc       4,854,361
793   J M Smucker Co       103,970
224,478   Keurig Dr Pepper Inc       7,903,870
364,184   Kroger Co       14,822,289
1,193   McCormick & Co Inc/MD       100,415
165,367   PepsiCo Inc       25,954,351
227,889   Procter & Gamble Co       32,412,652
    Total Consumer Staples       117,068,028
    Energy – 2.7%        
198,402   Baker Hughes Co       4,214,058
241,708   ONEOK Inc       12,561,565
184,213   Valero Energy Corp       12,336,745
    Total Energy       29,112,368
28      

Shares   Description (1)       Value
    Financials – 21.1%        
2,174   Aflac Inc       $119,570
992   Allstate Corp       129,010
121,389   American Express Co       20,700,466
251,848   American International Group Inc       11,925,003
430   Ameriprise Financial Inc       110,751
208,318   Bank of New York Mellon Corp       10,692,963
22,261   BlackRock Inc       19,304,071
3,542   Carlyle Group Inc       178,765
41,505   Charles Schwab Corp       2,820,265
91,300   Chubb Ltd       15,405,962
283,588   Citigroup Inc       19,176,221
2,170   Citizens Financial Group Inc       91,487
80,475   CME Group Inc       17,071,162
188,868   Equitable Holdings Inc       5,830,355
1,759   Hartford Financial Services Group Inc       111,908
542,877   Huntington Bancshares Inc/OH       7,643,708
4,640   KeyCorp       91,222
123,305   Loews Corp       6,612,847
634   M&T Bank Corp       84,861
116,195   Marsh & McLennan Cos Inc       17,106,228
1,720   MetLife Inc       99,244
226,841   Morgan Stanley       21,772,199
938   Northern Trust Corp       105,853
89,401   PNC Financial Services Group Inc       16,307,636
27,090   Progressive Corp       2,577,884
143,707   Prudential Financial Inc       14,410,938
307,601   Regions Financial Corp       5,921,319
1,228   State Street Corp       107,008
38,319   Travelers Cos Inc       5,706,466
3,338   Truist Financial Corp       181,687
466   Willis Towers Watson PLC       96,033
    Total Financials       222,493,092
    Health Care – 16.3%        
64,540   Amgen Inc       15,588,992
29,872   Anthem Inc       11,471,147
1   AstraZeneca PLC, Sponsored ADR       57
113,459   Baxter International Inc       8,776,054
396   Biogen Inc, (2)       129,385
220,417   Boston Scientific Corp, (2)       10,051,015
323,372   Bristol-Myers Squibb Co       21,947,258
      29

Nuveen ESG Large-Cap Value ETF (NULV) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Health Care (continued)        
5,575   Cardinal Health Inc       $331,043
69,025   Cigna Corp       15,840,547
46,722   Danaher Corp       13,899,328
924   DaVita Inc, (2)       111,111
100,533   DENTSPLY SIRONA Inc       6,639,199
214,946   Elanco Animal Health Inc, (2)       7,839,081
32,169   Exact Sciences Corp, (2)       3,469,105
56,406   Gilead Sciences Inc       3,851,966
77,869   HCA Inc       19,327,086
1,317   Henry Schein Inc, (2)       105,557
319   Humana Inc       135,849
8,630   Laboratory Corp of America Holdings, (2)       2,555,774
726   PerkinElmer Inc       132,299
788   Quest Diagnostics Inc       111,738
2,580   Royalty Pharma PLC       98,556
35,674   Stryker Corp       9,665,514
36,660   Thermo Fisher Scientific Inc       19,796,767
45,398   Viatris Inc       638,750
931   Zimmer Biomet Holdings Inc       152,144
    Total Health Care       172,665,322
    Industrials – 14.0%        
95,807   3M Co       18,964,038
5,222   AMERCO       3,070,327
176,302   Carrier Global Corp       9,740,685
83,545   Caterpillar Inc       17,272,929
413   Cummins Inc       95,857
7,635   Eaton Corp PLC       1,206,712
23,795   Emerson Electric Co       2,400,678
3,536   Expeditors International of Washington Inc       453,492
173,924   Fortive Corp       12,637,318
1,068   Fortune Brands Home & Security Inc       104,098
493   IDEX Corp       111,758
70,149   IHS Markit Ltd       8,196,209
30,231   Illinois Tool Works Inc       6,852,461
173,802   Johnson Controls International plc       12,412,939
49,348   Kansas City Southern       13,215,394
526   Nordson Corp       118,944
2,256   Otis Worldwide Corp       202,025
1,458   Owens Corning       140,201
1,143   PACCAR Inc       94,858
30      

Shares   Description (1)       Value
    Industrials (continued)        
1,712   Pentair PLC       $126,123
414   Rockwell Automation Inc       127,272
34,206   Roper Technologies Inc       16,806,776
610   Trane Technologies PLC       124,202
86,904   United Parcel Service Inc       16,629,949
51,181   Waste Connections Inc       6,484,121
966   Xylem Inc/NY       121,571
    Total Industrials       147,710,937
    Information Technology – 11.2%        
91,152   Automatic Data Processing Inc       19,108,194
282,250   Cisco Systems Inc       15,628,182
684,977   Hewlett Packard Enterprise Co       9,932,167
12,565   HP Inc       362,752
426,885   Intel Corp       22,932,262
139,623   International Business Machines Corp       19,681,258
38,583   salesforce.com Inc, (2)       9,334,385
114,153   Texas Instruments Inc       21,759,845
    Total Information Technology       118,739,045
    Materials – 3.5%        
348,092   Amcor PLC       4,023,943
55,418   DuPont de Nemours Inc       4,159,121
730   International Flavors & Fragrances Inc       109,967
1,984   International Paper Co       114,596
100,300   LyondellBasell Industries NV       9,962,799
51,929   Newmont Corp       3,262,180
77,050   PPG Industries Inc       12,599,216
41,436   Steel Dynamics Inc       2,670,550
    Total Materials       36,902,372
    Real Estate – 5.1%        
896   Camden Property Trust       133,853
12,649   CBRE Group Inc, (2)       1,220,123
22,925   Crown Castle International Corp       4,426,588
134,453   Equity Residential       11,311,531
382,998   Host Hotels & Resorts Inc, (2)       6,101,158
148,056   Prologis Inc       18,957,090
2,001   Ventas Inc       119,620
130,394   Welltower Inc       11,326,023
    Total Real Estate       53,595,986
      31

Nuveen ESG Large-Cap Value ETF (NULV) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Utilities – 4.2%        
158,596   Consolidated Edison Inc       $11,699,627
146,337   Eversource Energy       12,624,493
112,101   Sempra Energy       14,645,995
113,334   UGI Corp       5,212,231
    Total Utilities       44,182,346
    Total Long-Term Investments (cost $917,483,334)       1,053,469,576
    
Principal Amount (000)   Description (1) Coupon Maturity Ratings (3) Value
    SHORT-TERM INVESTMENTS – 0.1%        
    U.S. GOVERNMENT AND AGENCY OBLIGATIONS  –  0.1%        
$1,037   Federal Agricultural Mortgage Corp Discount Notes 0.000% 8/02/21 N/R $1,037,000
    Total Short-Term Investments (cost $1,037,000)       1,037,000
    Total Investments (cost $918,520,334) – 99.8%       1,054,506,576
    Other Assets Less Liabilities – 0.2%       1,824,864
    Net Assets – 100%       $1,056,331,440
Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
32      

The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $1,053,469,576 $ — $ — $1,053,469,576
Short-Term Investments:        
U.S. Government and Agency Obligations  — 1,037,000  — 1,037,000
Total $1,053,469,576 $1,037,000 $ — $1,054,506,576
    
  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
(3) For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
ADR American Depositary Receipt  
      33

Nuveen ESG Mid-Cap Growth ETF (NUMG)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.9%        
    COMMON STOCKS – 99.9%        
    Communication Services – 7.9%        
26,056   Altice USA Inc, (2)       $800,701
3,168   Cable One Inc       5,981,152
59,990   Live Nation Entertainment Inc, (2)       4,732,611
66,851   Match Group Inc, (2)       10,647,359
33,489   Take-Two Interactive Software Inc, (2)       5,807,663
    Total Communication Services       27,969,486
    Consumer Discretionary  – 10.5%        
31,215   Autoliv Inc       3,148,969
48,471   Darden Restaurants Inc       7,070,950
745   Domino's Pizza Inc       391,490
43,229   Etsy Inc, (2)       7,932,954
12,059   Pool Corp       5,762,031
38,985   Tractor Supply Co       7,053,556
18,695   Vail Resorts Inc, (2)       5,705,714
    Total Consumer Discretionary       37,065,664
    Consumer Staples  – 1.4%        
73,846   Lamb Weston Holdings Inc       4,930,697
    Energy – 1.2%        
207,996   Baker Hughes Co       4,417,835
    Financials – 4.4%        
5,505   FactSet Research Systems Inc       1,966,826
9,591   MarketAxess Holdings Inc       4,557,356
9,127   SVB Financial Group, (2)       5,019,485
64,421   Voya Financial Inc       4,148,712
    Total Financials       15,692,379
    Health Care – 17.6%        
2,794   ABIOMED Inc, (2)       914,029
64,952   Catalent Inc, (2)       7,781,899
83,749   Hologic Inc, (2)       6,284,525
67,420   Horizon Therapeutics Plc, (2)       6,743,348
24,444   Insulet Corp, (2)       6,836,742
6,690   Mettler-Toledo International Inc, (2)       9,859,120
39,302   Novavax Inc, (2)       7,048,028
34      

Shares   Description (1)       Value
    Health Care (continued)        
36,817   Novocure Ltd, (2)       $5,670,186
106,055   PPD Inc, (2)       4,891,257
16,519   STERIS PLC       3,600,316
6,087   Waters Corp, (2)       2,372,774
    Total Health Care       62,002,224
    Industrials – 17.4%        
26,972   Allegion plc       3,684,375
64,501   Copart Inc, (2)       9,481,647
17,931   Expeditors International of Washington Inc       2,299,651
63,966   Fastenal Co       3,503,418
22,554   Generac Holdings Inc, (2)       9,458,245
23,720   IDEX Corp       5,377,087
5,965   Lennox International Inc       1,965,050
78,192   Masco Corp       4,668,844
16,610   Teledyne Technologies Inc, (2)       7,520,510
65,781   TransUnion       7,897,667
43,817   Xylem Inc/NY       5,514,369
    Total Industrials       61,370,863
    Information Technology – 37.3%        
24,034   ANSYS Inc, (2)       8,855,568
72,699   Cadence Design Systems Inc, (2)       10,734,007
6,682   CDW Corp/DE       1,225,145
73,982   Cloudflare Inc, (2)       8,776,485
59,858   Cognex Corp       5,411,762
12,599   Fair Isaac Corp, (2)       6,600,742
17,054   Fortinet Inc, (2)       4,642,781
14,919   HubSpot Inc, (2)       8,892,022
11,925   Keysight Technologies Inc, (2)       1,962,259
213,384   Marvell Technology Inc       12,911,866
43,192   Maxim Integrated Products Inc, (2)       4,315,313
29,695   Okta Inc, (2)       7,358,124
20,159   Paycom Software Inc, (2)       8,063,600
46,805   PTC Inc, (2)       6,339,737
33,230   Skyworks Solutions Inc       6,131,267
47,397   Splunk Inc, (2)       6,729,426
90,247   Trimble Inc, (2)       7,716,118
16,336   Zebra Technologies Corp, (2)       9,025,313
46,232   Zendesk Inc, (2)       6,034,663
    Total Information Technology       131,726,198
      35

Nuveen ESG Mid-Cap Growth ETF (NUMG) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Materials – 2.2%        
94,028   Ball Corp       $7,604,985
    Total Long-Term Investments (cost $288,960,481)       352,780,331
    
Principal Amount (000)   Description (1) Coupon Maturity Ratings (3) Value
    SHORT-TERM INVESTMENTS – 0.1%        
    U.S. GOVERNMENT AND AGENCY OBLIGATIONS  –  0.1%        
$365   Federal Agricultural Mortgage Corp Discount Notes 0.000% 8/02/21 N/R $365,000
    Total Short-Term Investments (cost $365,000)       365,000
    Total Investments (cost $289,325,481) – 100.0%       353,145,331
    Other Assets Less Liabilities – (0.0)%       (56,326)
    Net Assets – 100%       $353,089,005
Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $352,780,331 $ — $ — $352,780,331
Short-Term Investments:        
U.S. Government and Agency Obligations  — 365,000  — 365,000
Total $352,780,331 $365,000 $ — $353,145,331
36      

  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
(3) For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
      37

Nuveen ESG Mid-Cap Value ETF (NUMV)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.7%        
    COMMON STOCKS – 99.7%        
    Communication Services – 5.0%        
8,073   Discovery Inc, (2), (3)       $234,198
90,854   Discovery Inc, (2)       2,463,052
99,343   Interpublic Group of Cos Inc       3,512,769
194,269   Lumen Technologies Inc       2,422,534
31,754   Omnicom Group Inc       2,312,326
30,556   ViacomCBS Inc       1,250,657
    Total Communication Services       12,195,536
    Consumer Discretionary  – 12.0%        
19,863   Autoliv Inc       2,003,779
17,314   Best Buy Co Inc       1,945,228
41,700   BorgWarner Inc       2,042,466
12,780   CarMax Inc, (2)       1,711,881
25,565   Genuine Parts Co       3,244,710
42,366   Hasbro Inc       4,212,875
81,605   LKQ Corp, (2)       4,141,454
15,902   Mohawk Industries Inc, (2)       3,099,300
123,591   Newell Brands Inc       3,058,877
73,971   PulteGroup Inc       4,058,789
    Total Consumer Discretionary       29,519,359
    Consumer Staples  – 3.2%        
44,239   Bunge Ltd       3,434,274
58,635   Campbell Soup Co       2,563,522
57,675   Conagra Brands Inc       1,931,536
    Total Consumer Staples       7,929,332
    Energy – 3.2%        
146,281   Baker Hughes Co       3,107,008
90,573   ONEOK Inc       4,707,079
    Total Energy       7,814,087
    Financials – 21.0%        
59,181   Ally Financial Inc       3,039,536
446,306   Annaly Capital Management Inc       3,789,138
36,011   Arthur J Gallagher & Co       5,016,692
86,090   Citizens Financial Group Inc       3,629,554
121,905   Equitable Holdings Inc       3,763,207
38      

Shares   Description (1)       Value
    Financials (continued)        
10,992   FactSet Research Systems Inc       $3,927,222
4,003   First Republic Bank/CA       780,665
6,878   Franklin Resources Inc       203,245
67,451   Hartford Financial Services Group Inc       4,291,233
189,392   KeyCorp       3,723,447
58,293   Lincoln National Corp       3,592,015
70,629   Loews Corp       3,787,833
67,353   Principal Financial Group Inc       4,184,642
10,051   Regions Financial Corp       193,482
7,877   SVB Financial Group, (2)       4,332,035
51,514   Voya Financial Inc       3,317,501
    Total Financials       51,571,447
    Health Care – 4.7%        
7,997   Cardinal Health Inc       474,862
623   DaVita Inc, (2)       74,916
25,361   Hologic Inc, (2)       1,903,089
9,255   Jazz Pharmaceuticals PLC, (2)       1,568,908
5,807   Laboratory Corp of America Holdings, (2)       1,719,743
30,443   Quest Diagnostics Inc       4,316,817
7,002   STERIS PLC       1,526,086
    Total Health Care       11,584,421
    Industrials – 16.5%        
5,593   Allegion plc       764,004
116,500   Carrier Global Corp       6,436,625
14,469   CH Robinson Worldwide Inc       1,290,201
817   Expeditors International of Washington Inc       104,780
65,620   Fastenal Co       3,594,007
32,564   Fortune Brands Home & Security Inc       3,174,013
16,812   IDEX Corp       3,811,112
17,358   Kansas City Southern       4,648,472
58,557   Masco Corp       3,496,439
28,152   Owens Corning       2,707,096
19,364   Pentair PLC       1,426,546
42,105   Robert Half International Inc       4,135,132
1,414   Snap-on Inc       308,224
35,436   Xylem Inc/NY       4,459,621
    Total Industrials       40,356,272
    Information Technology – 9.1%        
675   Guidewire Software Inc, (2)       77,760
      39

Nuveen ESG Mid-Cap Value ETF (NUMV) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Information Technology (continued)        
193,465   Hewlett Packard Enterprise Co       $2,805,242
109,284   NortonLifeLock Inc       2,712,429
6,393   Okta Inc, (2)       1,584,121
96,359   ON Semiconductor Corp, (2)       3,763,783
21,056   Skyworks Solutions Inc       3,885,043
33,398   Splunk Inc, (2)       4,741,848
121,178   Western Union Co       2,812,541
    Total Information Technology       22,382,767
    Materials – 4.7%        
372,444   Amcor PLC       4,305,453
8,569   Martin Marietta Materials Inc       3,113,118
88,483   Mosaic Co       2,763,324
22,734   Steel Dynamics Inc       1,465,206
    Total Materials       11,647,101
    Real Estate – 15.2%        
27,916   Alexandria Real Estate Equities Inc       5,620,607
39,554   Boston Properties Inc       4,642,849
36,751   CBRE Group Inc, (2)       3,545,002
43,571   Duke Realty Corp       2,216,893
106,255   Healthpeak Properties Inc       3,928,247
233,015   Host Hotels & Resorts Inc, (2)       3,711,929
60,630   Regency Centers Corp       3,965,808
85,972   Ventas Inc       5,139,406
140,753   VICI Properties Inc       4,390,086
    Total Real Estate       37,160,827
    Utilities – 5.1%        
41,390   Atmos Energy Corp       4,080,640
71,484   CMS Energy Corp       4,416,996
87,002   UGI Corp       4,001,222
    Total Utilities       12,498,858
    Total Long-Term Investments (cost $202,032,472)       244,660,007
    
Shares   Description (1) Coupon     Value
    INVESTMENTS PURCHASED WITH COLLATERAL FROM SECURITIES LENDING  –  0.1%      
    MONEY MARKET FUNDS  –  0.1%        
167,621   State Street Navigator Securities Lending Government Money Market Portfolio, (4) 0.050% (5)     $167,621
    Total Investments Purchased with Collateral from Securities Lending (cost $167,621)     167,621
    
40      

Principal Amount (000)   Description (1) Coupon Maturity Ratings (6) Value
    SHORT-TERM INVESTMENTS – 0.2%        
    U.S. GOVERNMENT AND AGENCY OBLIGATIONS  –  0.2%        
$409   Federal Agricultural Mortgage Corp Discount Notes 0.000% 8/02/21 N/R $409,000
    Total Short-Term Investments (cost $409,000)       409,000
    Total Investments (cost $202,609,093) – 100.0%       245,236,628
    Other Assets Less Liabilities – (0.0)%       (2,667)
    Net Assets – 100%       $245,233,961
Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $244,660,007 $ — $ — $244,660,007
Investments Purchased with Collateral from Securities Lending 167,621  —  — 167,621
Short-Term Investments:        
U.S. Government and Agency Obligations  — 409,000  — 409,000
Total $244,827,628 $409,000 $ — $245,236,628
      41

Nuveen ESG Mid-Cap Value ETF (NUMV) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
(3) Investment, or a portion of investment, is out on loan for securities lending. The total value of the securities out on loan as of the end of the reporting period was $156,857.  
(4) The Fund may loan securities representing up to one third of the fair value of its total assets (which includes collateral for securities on loan) to broker dealers, banks, and other institutions. The Fund maintains collateral equal to at least 100% of the fair value of the securities loaned. The cash collateral received by the Fund is invested in this money market fund.  
(5) The rate shown is the one-day yield as of the end of the reporting period.  
(6) For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
42      

Nuveen ESG Small-Cap ETF (NUSC)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    LONG-TERM INVESTMENTS – 99.9%        
    COMMON STOCKS – 99.9%        
    Communication Services – 2.3%        
14,517   Bandwidth Inc, Class A, (2)       $1,882,274
18,512   Cardlytics Inc, (2)       2,331,772
9,212   Cinemark Holdings Inc, (2)       143,062
61,639   Clear Channel Outdoor Holdings Inc, (2)       163,960
1,865   Cogent Communications Holdings Inc       144,743
70,153   Consolidated Communications Holdings Inc, (2)       539,477
21,679   Gogo Inc, (2), (3)       224,811
78,712   Gray Television Inc       1,745,045
10,582   Hemisphere Media Group Inc, (2)       134,497
19,910   iHeartMedia Inc, (2)       514,673
4,915   IMAX Corp, (2)       79,328
44,524   John Wiley & Sons Inc       2,617,121
24,208   New York Times Co       1,059,826
25,862   Scholastic Corp       869,222
71,809   TEGNA Inc       1,272,455
80,364   TripAdvisor Inc, (2)       3,049,814
14,908   WideOpenWest Inc, (2)       331,554
7,894   World Wrestling Entertainment Inc       389,806
503,183   Zynga Inc, (2)       5,082,148
    Total Communication Services       22,575,588
    Consumer Discretionary  – 15.4%        
17,637   1-800-Flowerscom Inc, (2)       537,928
17,039   2U Inc, (2)       739,493
34,107   Aaron's Co Inc       984,669
12,994   American Axle & Manufacturing Holdings Inc, (2)       125,912
63,571   American Eagle Outfitters Inc       2,191,292
17,914   American Public Education Inc, (2)       530,613
48,849   Arko Corp, (2)       405,447
25,955   Big Lots Inc       1,495,268
3,154   Boot Barn Holdings Inc, (2)       272,569
39,586   Bright Horizons Family Solutions Inc, (2)       5,918,107
17,025   Caleres Inc       421,199
26,154   Callaway Golf Co, (2)       828,559
21,780   Camping World Holdings Inc       857,261
      43

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Consumer Discretionary (continued)        
31,830   Carter's Inc       $3,111,064
1,394   Children's Place Inc, (2)       117,556
10,337   Columbia Sportswear Co       1,029,772
44,943   Core-Mark Holding Co Inc       1,934,347
16,172   Crocs Inc, (2)       2,196,319
22,080   Dana Inc       533,453
3,870   Deckers Outdoor Corp, (2)       1,589,989
15,358   Dine Brands Global Inc, (2)       1,189,784
16,481   Dorman Products Inc, (2)       1,667,053
21,130   Ethan Allen Interiors Inc       502,260
64,998   Foot Locker Inc       3,708,786
24,618   Franchise Group Inc       836,027
17,444   GameStop Corp, (2)       2,810,577
39,577   Gap Inc       1,154,461
116,945   GoPro Inc, (2)       1,197,517
4,035   Graham Holdings Co       2,681,903
25,044   Grand Canyon Education Inc, (2)       2,313,314
25,840   Green Brick Partners Inc, (2)       647,809
182,588   H&R Block Inc       4,482,535
243,365   Hanesbrands Inc       4,443,845
77,859   Harley-Davidson Inc       3,084,774
13,957   Helen of Troy Ltd, (2)       3,117,854
3,641   Hibbett Inc       322,811
83,470   Hilton Grand Vacations Inc, (2)       3,394,725
127,664   Houghton Mifflin Harcourt Co, (2)       1,445,156
27,902   iRobot Corp, (2)       2,441,425
5,859   Jack in the Box Inc       637,811
5,728   Johnson Outdoors Inc       678,023
32,377   Kontoor Brands Inc       1,793,038
13,064   Lands' End Inc, (2)       500,743
13,622   LCI Industries       1,986,360
42,045   Leggett & Platt Inc       2,019,421
62,574   Levi Strauss & Co       1,722,036
6,805   Lithia Motors Inc       2,566,982
12,348   Lovesac Co, (2)       749,524
185,544   Macy's Inc, (2)       3,154,248
20,978   Malibu Boats Inc, (2)       1,755,019
21,975   MarineMax Inc, (2)       1,182,035
2,337   Meritage Homes Corp, (2)       253,751
33,468   Monro Inc       1,941,144
44      

Shares   Description (1)       Value
    Consumer Discretionary (continued)        
18,233   Murphy USA Inc       $2,689,550
80,331   Nordstrom Inc, (2)       2,658,956
14,448   Overstockcom Inc, (2)       1,006,159
30,286   Planet Fitness Inc, (2)       2,278,416
15,595   PVH Corp, (2)       1,631,549
15,196   Ralph Lauren Corp       1,725,050
68,384   RealReal Inc, (2)       1,129,020
14,162   Rent-A-Center Inc/TX       810,350
19,355   Revolve Group Inc, (2)       1,347,302
56,345   Sally Beauty Holdings Inc, (2)       1,066,047
44,055   SeaWorld Entertainment Inc, (2)       2,088,648
35,960   Shake Shack Inc, (2)       3,615,418
16,895   Signet Jewelers Ltd       1,087,024
12,471   Sleep Number Corp, (2)       1,237,248
77,592   Sonos Inc, (2)       2,590,021
12,648   Steven Madden Ltd       554,362
91,071   Tapestry Inc, (2)       3,852,303
13,863   Taylor Morrison Home Corp, (2)       371,806
114,532   Terminix Global Holdings Inc, (2)       6,012,930
25,840   Thor Industries Inc       3,058,422
61,385   Travel + Leisure Co       3,179,743
40,347   Tupperware Brands Corp, (2)       842,849
4,388   Under Armour Inc, (2)       89,735
140,140   Under Armour Inc, (2)       2,455,253
89,773   Wendy's Co       2,083,631
8,407   Williams-Sonoma Inc       1,275,342
22,230   Wingstop Inc       3,808,221
3,244   Wolverine World Wide Inc       108,804
108,762   Workhorse Group Inc, (2), (3)       1,255,113
49,671   WW International Inc, (2)       1,526,887
28,262   Wyndham Hotels & Resorts Inc       2,036,560
7,941   XPEL Inc, (2)       735,337
30,124   YETI Holdings Inc, (2)       2,901,845
6,734   Zumiez Inc, (2)       293,939
    Total Consumer Discretionary       151,607,408
    Consumer Staples  – 3.5%        
28,668   Beyond Meat Inc, (2)       3,517,564
13,455   BJ's Wholesale Club Holdings Inc, (2)       681,361
132,207   Darling Ingredients Inc, (2)       9,131,537
30,004   Edgewell Personal Care Co       1,232,564
      45

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Consumer Staples (continued)        
61,424   Energizer Holdings Inc       $2,632,018
28,124   Freshpet Inc, (2)       4,118,760
20,218   Herbalife Nutrition Ltd, (2)       1,029,905
21,420   Landec Corp, (2)       234,335
10,880   Medifast Inc       3,106,349
74,302   Performance Food Group Co, (2)       3,404,518
15,424   United Natural Foods Inc, (2)       510,843
139,564   US Foods Holding Corp, (2)       4,792,628
15,639   Vital Farms Inc, (2)       272,275
    Total Consumer Staples       34,664,657
    Energy – 2.5%        
132,031   Archrock Inc       1,136,787
50,504   Cactus Inc       1,820,164
114,257   ChampionX Corp, (2)       2,655,333
149,200   Clean Energy Fuels Corp, (2)       1,120,492
38,937   Core Laboratories NV       1,298,938
62,133   Delek US Holdings Inc       1,079,872
18,097   DMC Global Inc, (2)       792,106
35,958   Dril-Quip Inc, (2)       1,027,680
156,400   Frank's International NV, (2)       430,100
43,797   Green Plains Inc, (2)       1,548,662
141,675   Helix Energy Solutions Group Inc, (2)       587,951
90,886   Liberty Oilfield Services Inc, (2)       926,128
252,594   NOV Inc, (2)       3,488,323
82,367   Oceaneering International Inc, (2)       1,092,186
43,914   Renewable Energy Group Inc, (2)       2,689,733
425,351   TechnipFMC PLC, (2)       3,071,034
    Total Energy       24,765,489
    Financials – 13.3%        
14,227   Amalgamated Financial Corp       218,527
21,193   Amerant Bancorp Inc, (2)       469,425
37,341   Ameris Bancorp       1,815,146
27,968   Artisan Partners Asset Management Inc       1,344,981
6,273   Associated Banc-Corp       124,205
20,128   Banc of California Inc       344,591
52,246   Bancorp Inc, (2)       1,220,989
43,122   Bank OZK       1,755,497
2,138   Banner Corp       113,400
47,225   Berkshire Hills Bancorp Inc       1,276,964
19,195   BOK Financial Corp       1,612,572
46      

Shares   Description (1)       Value
    Financials (continued)        
3,089   Bryn Mawr Bank Corp       $120,873
25,079   Byline Bancorp Inc       617,194
51,330   CNO Financial Group Inc       1,172,377
5,026   Commerce Bancshares Inc/MO       355,489
3,138   Community Trust Bancorp Inc       124,767
24,330   Cowen Inc       972,713
16,565   Crawford & Co       175,092
8,005   Cullen/Frost Bankers Inc       859,097
2,939   Diamond Hill Investment Group Inc       506,243
10,396   Dime Community Bancshares Inc       343,276
29,948   Donnelley Financial Solutions Inc, (2)       964,625
23,114   East West Bancorp Inc       1,644,561
3,186   Employers Holdings Inc       132,283
22,144   Encore Capital Group Inc, (2)       1,048,297
8,543   Federal Agricultural Mortgage Corp       832,942
77,815   First American Financial Corp       5,237,728
50,597   First Busey Corp       1,194,089
1,243   First Eagle Private Credit LLC, (2), (4)       104
24,341   First Financial Bancorp       547,672
435,665   First Horizon Corp       6,731,024
3,381   First Interstate BancSystem Inc       141,731
13,114   First of Long Island Corp       282,607
317,533   FNB Corp/PA       3,638,928
7,038   Fulton Financial Corp       107,822
506,143   Genworth Financial Inc, (2)       1,690,518
13,587   Glacier Bancorp Inc       700,546
17,534   Green Dot Corp, (2)       807,791
85,966   Hancock Whitney Corp       3,757,574
71,069   Hannon Armstrong Sustainable Infrastructure Capital Inc       4,036,719
8,788   Hanover Insurance Group Inc       1,194,289
50,745   HarborOne Bancorp Inc       690,639
2,704   Independent Bank Corp       191,119
53,726   International Bancshares Corp       2,099,612
47,007   Janus Henderson Group PLC       1,966,773
31,214   KKR Real Estate Finance Trust Inc       665,170
31,361   Live Oak Bancshares Inc       1,887,619
16,265   LPL Financial Holdings Inc       2,294,016
19,020   Morningstar Inc       4,805,023
71,476   Mr Cooper Group Inc, (2)       2,657,478
2,715   National Bank Holdings Corp       96,274
      47

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Financials (continued)        
165,956   New York Community Bancorp Inc       $1,954,962
61,368   OceanFirst Financial Corp       1,196,676
51,987   OFG Bancorp       1,200,900
26,020   Old National Bancorp/IN       418,662
89,348   Open Lending Corp, (2)       3,395,224
21,638   Origin Bancorp Inc       880,234
46,391   PennyMac Financial Services Inc       2,917,530
277,817   People's United Financial Inc       4,361,727
41,707   Pinnacle Financial Partners Inc       3,737,364
84,282   Popular Inc       6,132,358
45,705   PRA Group Inc, (2)       1,772,897
22,044   Premier Financial Corp       590,338
17,340   Primerica Inc       2,535,455
53,151   ProAssurance Corp       1,077,902
14,180   PROG Holdings Inc       620,659
132,627   Rocket Cos Inc       2,286,489
4,029   S&T Bancorp Inc       118,654
13,371   Seacoast Banking Corp of Florida       406,345
17,801   South State Corp       1,225,421
2,805   Southside Bancshares Inc       101,092
155,293   Starwood Property Trust Inc       4,042,277
15,778   State Auto Financial Corp       788,900
16,962   StoneX Group Inc, (2)       1,094,558
123,499   Synovus Financial Corp       5,051,109
27,641   TriState Capital Holdings Inc, (2)       561,389
33,186   Trupanion Inc, (2)       3,817,054
182,526   Valley National Bancorp       2,352,760
16,633   Victory Capital Holdings Inc       507,140
603   Virtus Investment Partners Inc       166,506
2,149   Washington Trust Bancorp Inc       104,764
34,849   Webster Financial Corp       1,676,237
24,303   Western Alliance Bancorp       2,255,804
45,689   Wintrust Financial Corp       3,262,195
26,516   Zions Bancorp NA       1,382,809
    Total Financials       131,583,382
    Health Care – 14.5%        
42,650   1Life Healthcare Inc, (2)       1,153,256
1,945   Acadia Healthcare Co Inc, (2)       120,045
90,468   ACADIA Pharmaceuticals Inc, (2)       1,956,823
32,791   Accelerate Diagnostics Inc, (2)       244,621
48      

Shares   Description (1)       Value
    Health Care (continued)        
18,554   Acceleron Pharma Inc, (2)       $2,320,363
32,253   Accolade Inc, (2)       1,509,763
3,537   Adaptive Biotechnologies Corp, (2)       129,666
942   Addus HomeCare Corp, (2)       81,756
32,541   Aerie Pharmaceuticals Inc, (2)       513,497
29,270   Agios Pharmaceuticals Inc, (2)       1,407,594
13,912   Akouos Inc, (2)       151,223
13,184   Alder Biopharmaceuticals Inc, (2), (4)       11,602
17,400   Allakos Inc, (2)       1,384,344
62,751   Allscripts Healthcare Solutions Inc, (2)       1,071,787
35,823   Alphatec Holdings Inc, (2)       528,031
8,042   ALX Oncology Holdings Inc, (2)       470,940
498   Amedisys Inc, (2)       129,789
45,505   AMN Healthcare Services Inc, (2)       4,575,983
17,540   AnaptysBio Inc, (2)       403,069
36,767   AngioDynamics Inc, (2)       979,105
152,061   Antares Pharma Inc, (2)       669,068
17,020   Applied Therapeutics Inc, (2)       292,914
20,541   Arcturus Therapeutics Holdings Inc, (2)       643,139
19,424   Arvinas Inc, (2)       1,963,766
68,804   Atara Biotherapeutics Inc, (2)       877,251
6,729   AtriCure Inc, (2)       568,331
1,472   Atrion Corp       925,800
14,969   Avanos Medical Inc, (2)       567,924
38,063   Axogen Inc, (2)       775,343
85,062   BioCryst Pharmaceuticals Inc, (2)       1,371,199
67,219   Bluebird Bio Inc, (2)       1,708,035
31,184   Bridgebio Pharma Inc, (2)       1,666,785
175,075   Brookdale Senior Living Inc, (2)       1,316,564
32,012   Bruker Corp       2,632,987
3,094   Chemed Corp       1,472,806
57,530   Coherus Biosciences Inc, (2)       750,767
31,681   Collegium Pharmaceutical Inc, (2)       788,540
3,612   Computer Programs and Systems Inc       114,031
23,383   Corcept Therapeutics Inc, (2)       485,665
16,124   Cortexyme Inc, (2)       911,167
9,904   CorVel Corp, (2)       1,394,681
46,620   Covetrus Inc, (2)       1,186,945
4,981   CryoLife Inc, (2)       134,487
30,161   CryoPort Inc, (2)       1,861,537
      49

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Health Care (continued)        
64,261   Dicerna Pharmaceuticals Inc, (2)       $2,410,430
104,788   Dynavax Technologies Corp, (2)       978,720
2,835   Eagle Pharmaceuticals Inc/DE, (2)       131,828
1,841   Encompass Health Corp       153,263
23,216   Ensign Group Inc       1,974,985
30,086   Envista Holdings Corp, (2)       1,296,105
55,624   FibroGen Inc, (2)       723,112
21,895   Fluidigm Corp, (2)       162,242
11,963   Fulgent Genetics Inc, (2), (3)       1,103,587
28,875   G1 Therapeutics Inc, (2)       499,826
12,664   Glaukos Corp, (2)       645,864
55,139   Global Blood Therapeutics Inc, (2)       1,506,949
25,625   Globus Medical Inc, (2)       2,131,231
28,427   Haemonetics Corp, (2)       1,728,077
37,053   Hanger Inc, (2)       909,281
8,975   Heska Corp, (2)       2,160,283
10,566   Hill-Rom Holdings Inc       1,462,968
35,909   Homology Medicines Inc, (2)       228,381
7,015   IGM Biosciences Inc, (2)       477,090
34,812   Immunovant Inc, (2)       364,134
17,587   Inari Medical Inc, (2)       1,579,137
6,575   Inogen Inc, (2)       524,488
109,870   Inovio Pharmaceuticals Inc, (2)       922,908
1,395   Integra LifeSciences Holdings Corp, (2)       100,984
18,172   Intellia Therapeutics Inc, (2)       2,577,698
31,468   Intersect ENT Inc, (2)       734,778
5,266   Intra-Cellular Therapies Inc, (2)       180,782
16,386   iRhythm Technologies Inc, (2)       837,652
56,089   Kura Oncology Inc, (2)       1,062,326
3,418   LeMaitre Vascular Inc       186,144
4,406   LHC Group Inc, (2)       948,083
16,487   Ligand Pharmaceuticals Inc, (2)       1,871,439
1,377   LivaNova PLC, (2)       118,835
18,041   MacroGenics Inc, (2)       450,303
3,960   MEDNAX Inc, (2)       115,315
40,063   Meridian Bioscience Inc, (2)       821,292
32,447   Merit Medical Systems Inc, (2)       2,274,210
21,128   Merus NV, (2)       363,402
25,010   Mirati Therapeutics Inc, (2)       4,003,101
5,506   ModivCare Inc, (2)       936,020
50      

Shares   Description (1)       Value
    Health Care (continued)        
30,633   Molecular Templates Inc, (2)       $214,431
34,106   Myovant Sciences Ltd, (2), (3)       699,855
12,460   National Research Corp       657,639
28,945   Natus Medical Inc, (2)       772,832
65,100   NeoGenomics Inc, (2)       3,001,110
8,171   Nkarta Inc, (2)       259,511
19,595   Nurix Therapeutics Inc, (2)       602,350
435,637   OPKO Health Inc, (2)       1,498,591
2,261   Orthofix Medical Inc, (2)       89,852
13,453   OrthoPediatrics Corp, (2)       845,387
39,524   Owens & Minor Inc       1,827,985
24,035   Passage Bio Inc, (2)       283,613
42,924   Patterson Cos Inc       1,336,224
26,784   Pennant Group Inc, (2)       916,548
5,928   Penumbra Inc, (2)       1,578,211
44,918   Perrigo Co PLC       2,157,412
21,938   PetIQ Inc, (2), (3)       775,728
10,205   Phathom Pharmaceuticals Inc, (2)       327,581
12,256   Pliant Therapeutics Inc, (2), (3)       247,571
34,499   Progyny Inc, (2)       1,921,249
23,379   Prothena Corp PLC, (2)       1,171,288
23,828   Quidel Corp, (2)       3,370,947
50,347   Quotient Ltd, (2)       171,683
117,648   R1 RCM Inc, (2)       2,518,844
14,897   Reata Pharmaceuticals Inc, (2)       1,866,743
5,383   Relmada Therapeutics Inc, (2)       139,958
20,912   Repligen Corp, (2)       5,138,078
4,217   Revance Therapeutics Inc, (2)       122,630
33,678   Rhythm Pharmaceuticals Inc, (2)       582,293
35,713   Rocket Pharmaceuticals Inc, (2)       1,279,240
51,279   Sarepta Therapeutics Inc, (2)       3,475,691
4,019   Select Medical Holdings Corp       158,550
10,880   Shockwave Medical Inc, (2)       1,980,160
44,228   SIGA Technologies Inc, (2)       281,732
2,677   Simulations Plus Inc       126,328
19,720   SpringWorks Therapeutics Inc, (2)       1,690,004
6,427   STAAR Surgical Co, (2)       822,142
13,124   Surgery Partners Inc, (2)       716,045
368,084   TherapeuticsMD Inc, (2), (3)       368,084
135,131   Tilray Inc, (2), (3)       1,974,264
      51

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Health Care (continued)        
21,383   Tivity Health Inc, (2)       $536,286
26,836   Ultragenyx Pharmaceutical Inc, (2)       2,142,318
28,956   uniQure NV, (2)       840,014
1,145   US Physical Therapy Inc       135,293
15,368   Vapotherm Inc, (2)       397,416
38,451   Varex Imaging Corp, (2)       1,049,712
32,220   Vocera Communications Inc, (2)       1,351,951
18,778   XBiotech Inc       304,204
27,688   Xenon Pharmaceuticals Inc, (2)       478,172
22,974   Y-mAbs Therapeutics Inc, (2)       760,439
37,187   Zymeworks Inc, (2)       1,193,331
20,607   Zynex Inc, (2)       286,231
    Total Health Care       143,323,993
    Industrials – 16.7%        
18,440   AAON Inc       1,146,046
20,332   Acuity Brands Inc       3,565,826
152,815   ADT Inc       1,603,029
27,255   Advanced Drainage Systems Inc       3,327,563
28,878   AECOM, (2)       1,818,159
74,498   Allison Transmission Holdings Inc       2,973,215
4,592   ArcBest Corp       271,433
1,772   Armstrong World Industries Inc       191,695
22,896   ASGN Inc, (2)       2,315,473
20,119   Atkore Inc, (2)       1,511,138
39,567   Axon Enterprise Inc, (2)       7,360,253
92,370   AZEK Co Inc, (2)       3,359,497
30,130   Barnes Group Inc       1,526,687
117,993   Bloom Energy Corp, (2)       2,572,247
38,194   Boise Cascade Co       1,953,623
60,365   Builders FirstSource Inc, (2)       2,686,243
20,234   Carlisle Cos Inc       4,092,124
25,134   Columbus McKinnon Corp/NY       1,166,218
20,256   Comfort Systems USA Inc       1,514,136
50,725   Cornerstone Building Brands Inc, (2)       853,195
8,675   Curtiss-Wright Corp       1,026,253
37,952   Donaldson Co Inc       2,512,043
3,577   Echo Global Logistics Inc, (2)       110,637
4,733   EMCOR Group Inc       576,527
30,771   Energy Recovery Inc, (2)       650,807
38,682   EnerSys       3,816,366
52      

Shares   Description (1)       Value
    Industrials (continued)        
1,364   EnPro Industries Inc       $127,016
49,027   Flowserve Corp       2,063,546
1,540   Franklin Electric Co Inc       125,910
27,382   FTI Consulting Inc, (2)       3,989,557
30,909   GATX Corp       2,851,355
38,663   GMS Inc, (2)       1,899,513
21,198   Granite Construction Inc       814,427
53,396   Great Lakes Dredge & Dock Corp, (2)       822,298
74,637   Healthcare Services Group Inc       1,948,026
31,199   Herman Miller Inc       1,346,237
28,038   Hexcel Corp, (2)       1,525,828
1,756   Hub Group Inc, Class A, (2)       116,388
17,872   Hubbell Inc       3,582,621
6,992   Hyster-Yale Materials Handling Inc       500,907
20,919   IAA Inc, (2)       1,265,181
4,755   ICF International Inc       435,415
12,654   Kelly Services Inc, (2)       277,376
22,657   Korn Ferry       1,557,442
3,468   Landstar System Inc       544,476
6,649   Lindsay Corp       1,068,428
28,129   Luxfer Holdings PLC       586,490
74,111   Macquarie Infrastructure Corp       2,927,385
14,184   ManpowerGroup Inc       1,681,939
31,411   Matthews International Corp       1,086,821
60,520   Maxar Technologies Inc       2,195,060
24,209   McGrath RentCorp       1,898,470
44,798   Mercury Systems Inc, (2)       2,956,668
21,600   Montrose Environmental Group Inc, (2)       1,159,704
4,422   Moog Inc       344,341
10,763   MSA Safety Inc       1,770,298
9,578   Mueller Water Products Inc       141,946
16,889   MYR Group Inc, (2)       1,615,095
232,690   Nielsen Holdings PLC       5,512,426
1,339   Oshkosh Corp       160,077
65,017   PAE Inc, (2)       579,952
156,379   Pitney Bowes Inc       1,251,032
12,244   Proto Labs Inc, (2)       957,358
26,557   Quanta Services Inc       2,414,031
35,271   Raven Industries Inc, (2)       2,054,536
89,894   Resideo Technologies Inc, (2)       2,651,873
      53

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Industrials (continued)        
12,447   Rexnord Corp       $701,140
53,620   Ryder System Inc       4,083,163
21,420   Schneider National Inc       480,665
34,858   SiteOne Landscape Supply Inc, (2)       6,092,481
82,409   Steelcase Inc       1,133,124
25,914   Sterling Construction Co Inc, (2)       569,071
17,626   Tennant Co       1,394,569
61,803   Toro Co       7,029,473
52,612   Trex Co Inc, (2)       5,108,625
21,070   TriNet Group Inc, (2)       1,748,389
67,068   Triton International Ltd       3,540,520
35,101   TrueBlue Inc, (2)       954,396
513   UniFirst Corp/MA       111,716
9,932   Valmont Industries Inc       2,353,387
10,323   Vectrus Inc, (2)       467,529
9,469   Watts Water Technologies Inc       1,427,546
133,903   Welbilt Inc, (2)       3,145,381
44,973   WESCO International Inc, (2)       4,787,376
171,218   WillScot Mobile Mini Holdings Corp, (2)       4,915,669
    Total Industrials       165,352,102
    Information Technology – 14.8%        
49,446   8x8 Inc, (2)       1,263,840
81,639   ACI Worldwide Inc, (2)       2,800,218
6,666   ADTRAN Inc       149,385
34,544   Altair Engineering Inc, (2)       2,409,789
19,853   Anaplan Inc, (2)       1,135,592
3,211   Aspen Technology Inc, (2)       469,641
43,142   Avaya Holdings Corp, (2)       1,044,899
5,352   Avnet Inc       221,145
12,969   Badger Meter Inc       1,310,258
4,816   Benchmark Electronics Inc       127,142
7,331   BigCommerce Holdings Inc, (2)       474,756
19,346   Billcom Holdings Inc, (2)       4,001,140
24,158   Blackbaud Inc, (2)       1,723,190
6,675   Blackline Inc, (2)       763,553
41,381   Bottomline Technologies DE Inc, (2)       1,670,137
15,720   Box Inc, (2)       376,022
71,134   CDK Global Inc       3,413,721
15,117   Ciena Corp, (2)       878,902
816   Coherent Inc, (2)       200,687
54      

Shares   Description (1)       Value
    Information Technology (continued)        
67,667   CommScope Holding Co Inc, (2)       $1,431,834
1,680   CommVault Systems Inc, (2)       126,991
29,193   Concentrix Corp, (2)       4,779,770
172,281   Conduent Inc, (2)       1,156,005
45,549   Cree Inc, (2)       4,225,125
14,424   CTS Corp       504,696
47,566   Dolby Laboratories Inc       4,618,659
13,327   Elastic NV, (2)       1,973,196
13,313   ePlus Inc, (2)       1,230,920
33,347   ExlService Holdings Inc, (2)       3,775,547
1,704   FARO Technologies Inc, (2)       124,205
92,223   FireEye Inc, (2)       1,862,905
68,001   First Solar Inc, (2)       5,850,806
24,681   Five9 Inc, (2)       4,968,038
76,767   Flex Ltd, (2)       1,379,503
24,829   Harmonic Inc, (2)       219,737
27,674   Ichor Holdings Ltd, (2)       1,427,148
34,873   Insight Enterprises Inc, (2)       3,500,552
28,526   Itron Inc, (2)       2,813,234
25,125   Kimball Electronics Inc, (2)       512,299
62,375   Kulicke & Soffa Industries Inc       3,390,705
1,258   Littelfuse Inc       334,615
29,902   Lumentum Holdings Inc, (2)       2,511,469
26,082   Methode Electronics Inc       1,247,502
19,316   Mimecast Ltd, (2)       1,073,004
12,979   Model N Inc, (2)       420,130
70,144   National Instruments Corp       3,094,052
117,118   NCR Corp, (2)       5,200,039
28,583   New Relic Inc, (2)       1,974,514
2,244   Novanta Inc, (2)       315,080
47,066   Nutanix Inc, (2)       1,695,317
48,766   Onto Innovation Inc, (2)       3,417,521
14,971   OSI Systems Inc, (2)       1,497,849
21,841   PAR Technology Corp, (2)       1,333,393
6,080   Paylocity Holding Corp, (2)       1,261,357
36,578   Plantronics Inc, (2)       1,140,868
1,261   Plexus Corp, (2)       113,894
19,148   Progress Software Corp       872,957
29,259   PROS Holdings Inc, (2)       1,270,426
2,442   Qualys Inc, (2)       248,010
      55

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Information Technology (continued)        
16,628   Rackspace Technology Inc, (2)       $295,147
106,753   Rambus Inc, (2)       2,525,776
93,499   Ribbon Communications Inc, (2)       646,078
3,650   Rogers Corp, (2)       695,690
25,499   ScanSource Inc, (2)       703,517
17,747   Silicon Laboratories Inc, (2)       2,644,126
12,104   Smartsheet Inc, (2)       878,145
21,428   Sprout Social Inc, (2)       1,903,663
35,350   SPS Commerce Inc, (2)       3,851,382
39,531   Sykes Enterprises Inc, (2)       2,121,233
3,852   Synaptics Inc, (2)       585,196
8,868   SYNNEX Corp       1,060,081
85,696   Teradata Corp, (2)       4,255,663
18,733   TTEC Holdings Inc       1,957,598
17,421   Universal Display Corp       4,085,050
5,769   Viavi Solutions Inc, (2)       96,285
4,028   Vishay Precision Group Inc, (2)       146,337
49,227   Vontier Corp       1,592,493
40,646   WEX Inc, (2)       7,711,766
8,514   Workiva Inc, (2)       1,104,862
169,258   Xerox Holdings Corp       4,084,196
    Total Information Technology       146,272,173
    Materials – 4.9%        
24,238   AptarGroup Inc       3,124,763
91,367   Avient Corp       4,433,127
122,747   Axalta Coating Systems Ltd, (2)       3,694,685
17,088   Clearwater Paper Corp, (2)       503,925
43,554   Coeur Mining Inc, (2)       328,397
7,242   Commercial Metals Co       237,538
33,985   Compass Minerals International Inc       2,330,012
22,464   Domtar Corp, (2)       1,233,498
16,690   Graphic Packaging Holding Co       319,947
3,751   Greif Inc       228,361
21,576   HB Fuller Co       1,394,241
24,669   Innospec Inc       2,181,973
21,414   Koppers Holdings Inc, (2)       657,624
145,527   Livent Corp, (2)       2,839,232
59,126   Louisiana-Pacific Corp       3,277,945
34,354   Mercer International Inc       399,537
26,502   Minerals Technologies Inc       2,125,990
56      

Shares   Description (1)       Value
    Materials (continued)        
17,496   Myers Industries Inc       $370,565
1,900   Neenah Inc       95,513
46,036   Reliance Steel & Aluminum Co       7,234,557
15,121   Royal Gold Inc       1,837,504
25,571   Schnitzer Steel Industries Inc       1,340,432
11,927   Stepan Co       1,406,790
21,183   Trinseo SA       1,151,508
177,301   Valvoline Inc       5,439,595
    Total Materials       48,187,259
    Real Estate – 10.1%        
63,562   Alexander & Baldwin Inc       1,272,511
57,990   Armada Hoffler Properties Inc       753,870
35,541   Brandywine Realty Trust       496,152
63,771   Brixmor Property Group Inc       1,468,008
49,626   CatchMark Timber Trust Inc       580,128
12,914   Centerspace       1,162,260
44,299   City Office REIT Inc       570,128
6,821   Columbia Property Trust Inc       113,706
38,624   CoreSite Realty Corp       5,338,223
10,166   Cushman & Wakefield PLC, (2)       189,799
76,023   CyrusOne Inc       5,418,159
148,448   DiamondRock Hospitality Co, (2)       1,278,137
59,891   Douglas Emmett Inc       2,000,359
82,576   Easterly Government Properties Inc       1,874,475
143,471   Empire State Realty Trust Inc       1,639,874
122,167   Equity Commonwealth       3,211,770
13,941   Federal Realty Investment Trust       1,638,486
77,678   First Industrial Realty Trust Inc       4,255,201
57,903   Five Point Holdings LLC, (2)       484,648
100,824   Franklin Street Properties Corp       526,301
2,236   Howard Hughes Corp, (2)       207,300
7,008   Hudson Pacific Properties Inc       191,038
97,249   Independence Realty Trust Inc       1,874,961
117,961   JBG SMITH Properties       3,849,068
110,070   Kennedy-Wilson Holdings Inc       2,222,313
63,536   Kilroy Realty Corp       4,401,139
155,634   Kimco Realty Corp       3,319,673
3,191   Life Storage Inc       374,496
117,354   Macerich Co       1,912,870
23,723   Marcus & Millichap Inc, (2)       943,938
      57

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
Shares   Description (1)       Value
    Real Estate (continued)        
116,743   MGM Growth Properties LLC       $4,412,885
34,085   Outfront Media Inc, (2)       814,291
179,968   Park Hotels & Resorts Inc, (2)       3,329,408
9,841   Physicians Realty Trust       186,487
79,771   Piedmont Office Realty Trust Inc       1,517,244
67,205   PotlatchDeltic Corp       3,490,628
59,978   QTS Realty Trust Inc       4,660,890
137,717   Rayonier Inc       5,193,308
83,286   Realogy Holdings Corp, (2)       1,475,828
54,113   Rexford Industrial Realty Inc       3,329,032
68,162   RLJ Lodging Trust       978,125
12,424   RMR Group Inc       487,518
10,216   SITE Centers Corp       162,026
48,188   SL Green Realty Corp       3,588,079
32,060   St Joe Co       1,451,356
213,239   Sunstone Hotel Investors Inc, (2)       2,460,778
94,039   Tanger Factory Outlet Centers Inc       1,614,650
20,741   Tejon Ranch Co, (2)       378,108
218,353   Uniti Group Inc       2,556,914
83,904   Washington Real Estate Investment Trust       2,038,028
114,023   Xenia Hotels & Resorts Inc, (2)       2,015,927
    Total Real Estate       99,710,501
    Utilities – 1.9%        
77,548   Clearway Energy Inc       2,224,077
75,954   NextEra Energy Partners LP       5,888,713
53,286   ONE Gas Inc       3,931,441
57,033   Southwest Gas Holdings Inc       3,988,318
80,924   Sunnova Energy International Inc, (2)       3,083,204
    Total Utilities       19,115,753
    Total Common Stocks (cost $839,257,713)       987,158,305
    
Shares   Description (1)       Value
    COMMON STOCK RIGHTS  –  0.0%        
    Health Care  –  0.0%        
18,959   Achillion Pharmaceuticals Inc, (4)       $8,721
    Total Common Stock Rights (cost $-)       8,721
    Total Long-Term Investments (cost $839,257,713)       987,167,026
    
58      

Shares   Description (1) Coupon     Value
    INVESTMENTS PURCHASED WITH COLLATERAL FROM SECURITIES LENDING  –  0.4%      
    MONEY MARKET FUNDS  –  0.4%        
4,150,157   State Street Navigator Securities Lending Government Money Market Portfolio, (5) 0.050% (6)     $4,150,157
    Total Investments Purchased with Collateral from Securities Lending (cost $4,150,157)     4,150,157
    
Principal Amount (000)   Description (1) Coupon Maturity Ratings (7) Value
    SHORT-TERM INVESTMENTS – 0.1%        
    U.S. GOVERNMENT AND AGENCY OBLIGATIONS  –  0.1%        
$1,181   Federal Agricultural Mortgage Corp Discount Notes 0.000% 8/02/21 N/R $1,181,000
    Total Short-Term Investments (cost $1,181,000)       1,181,000
    Total Investments (cost $844,588,870) – 100.4%       992,498,183
    Other Assets Less Liabilities – (0.4)%       (4,296,562)
    Net Assets – 100%       $988,201,621
Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.
Fair Value Measurements
The Fund's investments in securities are recorded at their estimated fair value utilizing valuation methods approved by the Board of Directors/Trustees. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. U.S. GAAP establishes the three-tier hierarchy which is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect management’s assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
      59

Nuveen ESG Small-Cap ETF (NUSC) (continued)
Portfolio of Investments    July 31, 2021
(Unaudited)
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Common Stocks $987,146,599 $ — $11,706 $987,158,305
Common Stock Rights  —  — 8,721 8,721
Investments Purchased with Collateral from Securities Lending 4,150,157  —  — 4,150,157
Short-Term Investments:        
U.S. Government and Agency Obligations  — 1,181,000  — 1,181,000
Total $991,296,756 $1,181,000 $20,427 $992,498,183
    
  For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.  
(1) All percentages shown in the Portfolio of Investments are based on net assets.  
(2) Non-income producing; issuer has not declared an ex-dividend date within the past twelve months.  
(3) Investment, or a portion of investment, is out on loan for securities lending. The total value of the securities out on loan as of the end of the reporting period was $3,908,377.  
(4) Investment valued at fair value using methods determined in good faith by, or at the discretion of, the Board. For fair value measurement disclosure purposes, investment classified as Level 3.  
(5) The Fund may loan securities representing up to one third of the fair value of its total assets (which includes collateral for securities on loan) to broker dealers, banks, and other institutions. The Fund maintains collateral equal to at least 100% of the fair value of the securities loaned. The cash collateral received by the Fund is invested in this money market fund.  
(6) The rate shown is the one-day yield as of the end of the reporting period.  
(7) For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
REIT Real Estate Investment Trust  
60