William Blair Investment Management, LLC

Most recent update: June 30, 2017

CompanyShares/WarrantsValue ($000)
Alibaba Group Holding Limited7,188,0111,012,791
Taiwan Semiconductor Manufacturing Company Limited16,829,973588,376
S&P Quality Rankings Glbl Equ Mngd Tr1,849,724447,263
Alphabet Holding Company, Inc.434,485402,048
CoStar Group1,451,644382,653
Canadian National Railway Company4,474,642362,542
SBA Communications Corporation2,682,091361,814
Copart10,526,463334,636
Ballroom Dance Fitness Inc7,644,161322,660
Vantiv5,074,066321,391
BWX Technologies6,544,781319,058
Amazon.com326,546316,097
Redux Holdings, Inc.3,245,789310,784
Six Flags Entertainment Corporation New5,108,828304,537
Russell Exchange Traded Funds Trust Russell Small Cap Consiste2,604,700303,265
Microsoft Corporation4,278,761294,935
Guidewire Software4,286,670294,537
CSRA Inc.9,273,003294,418
Check Point Software Technologies Ltd.2,657,405289,870
Zoetis4,562,745284,624
Suncor Energy Inc.9,447,923275,648
Jumbo SA3,114,743265,033
Affiliated Managers Group1,545,643256,360
Booz Allen Hamilton Holding Corporation7,862,778255,855
Vail Resorts1,260,494255,666
Verisk Analytics3,006,349253,646
Old Dominion Freight Line2,625,605250,063
Ctrip.com International4,629,241249,331
NetEase820,764246,746
Mastercard Incorporated2,029,875246,528
United States Cellular Corporation1,305,241242,018
Centenera Mng Corp.3,001,143239,731
Hawaiian Telcom Holdco, Inc.2,736,510237,994
Facebook1,575,946237,936
Credicorp Ltd.1,289,399231,305
Align Technology1,511,925226,970
The Middleby Corporation1,809,903219,921
Maximus3,461,230216,777
Ligand Pharmaceuticals Incorporated1,773,434215,295
Westinghouse Air Brake Technologies Corporation2,349,404214,970
Progressive Corporation (The)4,799,062211,591
HealthSouth Corporation4,302,756208,253
Tractor Supply Company3,725,192201,943
Union Pacific Corporation1,828,841199,179
Signature Bank1,306,799187,565
Veeva Systems3,019,339185,116
Starbucks Corporation3,137,179182,929
Home Depot1,183,980181,623
ONYX Pharmaceuticals790,538172,922
IntercontinentalExchange2,601,890171,517
Yum China Holdings, Inc.4,315,971170,179
Arista Networks, Inc.1,115,205167,047
Adobe Systems Incorporated1,139,267161,138
Grand Canyon Education2,054,139161,065
Equifax1,150,901158,157
East West Bancorp2,646,584155,037
Newell Rubbermaid Inc.2,890,399154,983
Axalta Coating Systems Ltd.4,821,971154,496
Danaher Corporation1,709,301144,248
Mettler-Toledo International239,924141,205
ABIOMED973,794139,545
2U, Inc.2,830,577132,811
Brookfield Real Estate Services3,355,575131,572
Constellation Software, Inc.245,065128,016
Fortive Corp2,002,782126,876
MercadoLibre497,116124,716
Ross Stores2,144,530123,804
Companhia de Bebidas das Americas - AmBev22,256,839122,190
Ryanair Holdings Plc1,117,585120,263
Bank of the Ozarks2,474,518115,981
Takeuchi Manufacturing Co., Ltd.1,578,679115,843
Celanese Corporation1,214,392115,294
National Instruments Corporation2,863,043115,152
Domino's Pizza Inc538,069113,818
Texas Instruments Incorporated1,460,259112,338
EXACT Sciences Corporation3,130,696110,733
Live Nation Entertainment3,147,567109,693
STERLING CONSOLIDATED Corp2,172,180107,914
Vulcan Materials Company847,964107,420
Hanesbrands Inc.4,618,909106,974
Fomento Economico Mexicano S.A.B. de C.V.1,087,301106,925
Universal Electronics Inc.1,599,417106,921
Acadia Healthcare Company2,128,972105,129
Martin Marietta Materials465,283103,563
MaxLinear3,701,238103,228
Cambrex Corporation1,724,501103,039
Heico Corporation1,655,052102,696
The Cash Store Financial Services Inc.1,931,20997,207
Hexcel Corporation1,839,81697,124
BioMarin Pharmaceutical Inc.1,062,50696,497
Yandex N.V.3,661,36196,074
Accenture plc.775,53895,919
FirstService1,498,19795,855
Encore Capital Group Inc2,370,09295,159
Raytheon Company577,47093,250
Amedisys Inc1,463,74691,938
Toro Company (The)1,321,81191,588
GLAUKOS Corp2,164,76489,773
Tallgrass Energy Partners, LP690,86484,500
Carmax Mining Corp.1,331,83683,986
CBOE Holdings911,46083,307
SiteOne Landscape Supply, Inc.1,595,42883,058
Schlumberger N.V.1,241,82581,762
Michaels Stores Inc4,392,31981,346
Dun & Bradstreet Corporation (The)731,04079,062
Russell Exchange Traded Funds Trust Russell Small Cap Aggressi659,70078,517
Euronet Worldwide879,47576,840
Jones Lang LaSalle Incorporated605,76575,721
Indianapolis Power & Light Co.2,341,50075,162
Colliers International Group1,321,03274,572
iShares MSCI Europe Financials Sector Index Fund2,035,45074,554
IDEXX Laboratories443,47171,585
BlackRock164,70969,575
Illini Corp.572,40068,980
J P Morgan Chase & Co727,93766,533
Socket Mobile, Inc.2,013,17366,475
Cooper Companies271,64665,037
CMG HOLDINGS GROUP, INC.153,21963,754
Transdigm Group Incorporated234,63463,086
Diamondback Energy681,96160,565
Dollarama631,88860,289
Costco Wholesale Corporation363,15358,079
Cable One, Inc.81,35457,835
Weibo840,77755,886
Biogen Idec Inc.205,10755,658
ICON plc564,94655,246
Nu Skin Enterprises875,43755,012
Intuit Inc.407,56954,129
Goldman Sachs Group243,38954,008
Estee Lauder Companies562,44553,983
Concho Resources Inc.441,57753,665
Lowe's Companies686,26153,206
Honeywell International Inc.392,18652,274
PPG Industries465,65951,204
Cemex S.A.B. de C.V.5,381,35350,692
OM Asset Management plc3,393,65950,430
The NASDAQ OMX Group703,07750,263
Selective Insurance Group964,90050,136
USD Partners LP435,00049,747
NxStage Medical1,959,31849,120
Acxiom Corporation1,878,37748,800
Grupo Aeroportuario del Sureste231,81148,773
Virtu Financial2,750,83848,552
China Lodging Group599,60048,376
BROADVIEW INSTITUTE INC207,32748,318
Xylem Inc.868,67848,151
Limited Brands869,17546,840
Lundin Mining Corp8,216,97146,631
Banco Popular1,830,07746,502
Silicon Motion Technology Corporation947,86245,715
Cerner Corporation685,94745,595
Thermo Fisher Scientific Inc261,20245,572
Repligen Corporation1,058,97643,884
Boston Scientific Corporation1,533,45542,507
Pampa Energia S.A.720,46042,399
Nike702,21041,430
Banco Macro S.A.447,75941,279
IBERIABANK Corporation494,39840,293
Finning Intl Inc2,032,64039,786
NewLead Holdings Ltd.558,61439,377
Fifth Third Bancorp1,476,06738,319
Copa Holdings317,70937,172
Watsco238,52636,781
Brunswick Corporation574,67036,049
Sina Corporation420,52435,732
SPDR GOLD TRUST839,90031,244
First Quantum Minerals Ltd 3,656,53730,886
Selective Insurance Group579,92529,025
Hancock Holding Company591,76828,997
Salesforce.com Inc331,52028,710
Allergan118,02728,691
Netflix191,44828,604
FNB United Corp.1,948,14527,586
Radiant Creations Group, Inc.1,682,30727,506
Apogee Enterprises481,63927,376
Steven Madden684,89627,362
Lamprell192,41527,213
Wolverine World Wide970,68827,189
Glacier Bancorp733,42926,851
Carrizo Oil & Gas1,539,06126,810
Interface Inc.1,358,82726,701
iBrands Corp.781,32026,674
Fastenal Company607,06126,425
Global Profit Technologies, Inc.2,566,80025,950
WSFS Financial Corporation571,82425,932
Orbotech Ltd.783,85325,569
Belden Inc338,90925,564
Inphi Corporation742,32725,462
Envestnet281,25625,459
MakeMyTrip Limited750,72025,187
iShares MSCI Far East Financials Sector Index Fund781,20024,772
Education Realty Trust Inc.637,14424,689
IDACORP288,89224,657
Ulta Salon85,55824,584
Dana Holding Corporation1,086,32224,258
Momo652,65324,122
Renasant Corporation548,16223,977
J & J Snack Foods Corp.180,03823,778
EMCOR Group363,17423,744
iShares S&P Global Nuclear Index Fund759,80023,584
Western Alliance Bancorporation479,01623,568
Horizon Pharma1,984,61223,557
The Hanover Insurance Group264,70723,461
CoBiz Financial Inc.1,334,84923,226
Whitecap Resources, Inc.3,256,71823,221
ONE Gas332,24323,194
Prosperity Bancshares358,44923,027
Line Up Advertisement, Inc.655,80422,809
Southwest Gas Corporation309,99322,648
Terreno Realty Corporation670,18522,558
Healthcare Realty Trust Incorporated659,08122,508
LaSalle Hotel Properties753,50022,454
The Intertain Group Limited219,65422,427
PUBLIC SERVICE CO OF COLORADO585,02622,377
LAUREATE EDUCATION, INC.1,267,28922,216
Hess Midstream Partners LP505,59522,180
Integer Holdings Corporation510,65922,086
CONMED Corporation432,82222,048
Brady Corporation642,44221,779
Chesapeake Utilities Corporation288,80321,646
Banner Corporation382,65721,624
Acadia Realty Trust775,98321,572
Umpqua Holdings Corporation1,170,43821,489
Boston Private Financial Holdings1,386,63421,285
First American Minnesota Municipal Income Fund II475,45821,248
ICICI Bank Limited2,351,89621,097
The Ultimate Software Group99,92620,990
Berkshire Hills Bancorp596,77920,977
Sensient Technologies Corporation260,04320,941
iShares Trust123,96020,921
Kadant Inc273,94420,601
CNO Financial Group974,84720,355
Minerals Technologies Inc.276,98720,275
American Assets Trust512,13720,173
Tata Motors Ltd609,49420,119
Rice Energy752,53920,040
Pebblebrook Hotel Trust620,79620,014
Sterling Bancorp832,15419,348
Churchill Downs105,50619,339
Grupo Financiero Galicia S.A.452,47019,293
Seacoast Banking Corporation of Florida797,29519,215
Sandy Spring Bancorp471,79919,183
Meredith Corporation321,82419,132
Edwards Lifesciences Corporation161,64819,113
Archrock1,667,42619,009
CIRCOR International319,74718,987
Eldorado Artesian Springs, Inc.499,60018,950
Kennametal Inc.504,67318,885
Valmont Industries125,89018,833
Equity Commonwealth594,17218,776
Dave & Buster's Entertainment278,63918,532
OceanFirst Financial Corp.680,48018,455
Standex International Corporation202,93218,406
Highwoods Properties362,37618,376
Darling International Inc.1,156,04218,196
Bristol-Myers Squibb Company323,28018,013
Cavco Industries137,72517,856
PolyOne Corporation456,89217,700
ADTRAN853,02917,615
Pioneer Exploration, Inc.110,29317,601
Agree Realty Corporation383,26117,580
Magellan Health Services240,64817,543
Continental Building Products747,80617,424
Silgan Holdings547,71717,406
Prologis, Inc.290,48717,034
BHP Billiton Limited477,32516,988
National Bank of Canada 510,80816,913
RSP Permian515,29416,629
Cesc Ltd.3,696,64816,452
Terra Nitrogen Company434,00616,275
TopBuild Corp305,39416,207
CVB Financial Corporation705,16715,817
Canadian Natural Resources Limited542,95715,646
Spartan Stores601,75415,622
Shire plc93,81115,504
Herbalife LTD.214,32215,288
Mercury Computer Systems361,59015,219
Enerflex1,030,95914,940
WisdomTree Trust WisdomTree Emerging Markets Corporate Bond Fu592,81914,530
Lydall274,08814,170
ORBCOMM Inc.1,236,06413,968
LHC Group204,72913,899
Carpenter Technology Corporation358,93413,435
PDC Energy307,83413,271
Financial Institutions528,60013,041
Oasis Petroleum Inc.1,579,19012,712
Cincinnati Bell Inc637,74612,468
Gentherm Inc309,20211,997
Golden Valley Bank (Chico, CA)571,21911,830
Northwest Pipe Company723,13311,758
Analogic Corporation160,99711,696
Douglas Dynamics347,42711,430
Varonis301,80511,227
ESCO Technologies Inc.186,63611,133
REAL HIP-HOP NETWORK, INC309,52611,127
Atlantic Alliance Partnership Corp.463,65310,798
Exterran Corp393,55010,508
Intertape Polymer Gp550,30010,462
Etsy655,7029,836
Armstrong Flooring, Inc.210,1709,668
Lithia Motors101,2329,539
Shawcor Ltd452,0139,216
Enerplus Corporation1,101,6878,928
Global X Funds Global X NASDAQ 500 ETF300,7008,808
American Campus Communities Inc183,9748,702
Meta Financial Group96,4228,582
Blue Bird Corporation481,6088,187
NutriSystem Inc153,6938,000
NVR3,3007,955
Q2 Holdings214,6967,933
MGP Ingredients152,1517,786
Tarena International431,2027,723
U.S. Auto Parts Network2,367,7457,648
Bridgepoint Education512,1387,559
USA Technologies1,442,9907,504
Littelfuse45,1567,451
Helix TCS, Inc.1,286,0007,253
BofI Holding304,2367,216
Entellus Medical431,1877,140
Brilliant Sands Incorporated384,5937,134
Cowen Group, Inc.437,4977,109
Neogenomics Inc.788,2997,063
Calavo Growers101,5947,015
Primo Water Corporation551,9337,010
Team294,1666,898
Enova Systems Inc.446,4996,631
Green Bancorp, Inc.339,7236,591
John Bean Technologies Corporation67,0806,574
Albany International Corporation118,2506,315
Prudential Public Limited Company134,9616,210
ICF International131,2946,184
Diageo plc49,9495,985
Codexis1,090,0725,941
CSL109,2645,822
Compass Group Plc270,0305,798
Yelp Inc.190,6095,722
Relx253,7735,558
YPF Sociedad Anonima244,2235,348
LeMaitre Vascular165,4945,167
Transportadora De Gas Sa Ord B308,5985,126
Newpark Resources682,0955,013
Orix Corp Ads63,8794,978
AIA Group, Ltd.168,9034,962
Macquarie Group, Ltd.71,6894,885
Callon Petroleum Company443,9934,711
Unilever NV84,4964,670
IRSA Inversiones Y Representaciones S.A.191,3414,615
Magna International98,6284,569
CryoLife226,4094,517
GlaxoSmithKline PLC100,4604,332
Fresenius Medical Care Corporation87,6544,236
Fulgent Genetics, Inc.640,2194,091
ABB Ltd162,7444,052
Simulations Plus322,6143,984
Arcos Dorados Holdings Inc.518,5583,863
Willdan Group123,1973,764
Official Payments Holdings48,3043,630
Royal Dutch Shell PLC68,1213,623
Experian PLC 169,6163,492
Anheuser-Busch Inbev SA31,5883,486
Sappi Limited33,0783,462
Novartis AG40,6963,397
Grifols160,4363,390
Royal Kpn N.V.46,2003,350
Banco de Guayaquil SA302,8213,346
Sumitomo Mitsui Financial Group Inc422,8363,323
OBALON THERAPEUTICS INC329,6433,267
TotalFinaElf65,7433,260
Luxottica Group55,3523,226
A-Mark Precious Metals, Inc.196,3323,217
Merck & Company49,7123,186
National Retail Properties81,2773,178
Novo Nordisk A/S72,6203,115
Gulfport Energy Corporation210,6103,106
Intuitive Surgical3,1602,956
FMC Corporation40,4072,952
Peyto Exploration & Development Corp155,4642,816
Sony Corp Ord71,9722,749
Rio Tinto57,0662,414
Arthur J. Gallagher & Co.41,7552,390
Civeo Corp1,132,4092,378
Vanguard Natural Resources, LLC20,8762,353
Roper Technologies9,8662,284
Lennox International12,1152,225
Albero Corp.20,4832,162
Apple Green Holding, Inc.114,6252,145
Thomson Reuters Corp44,0402,039
DENTSPLY International Inc.30,8412,000
Home BancShares72,6131,808
Tanger Factory Outlet Centers65,2301,695
Telecom Argentina Stet - France Telecom S.A.59,1491,499
Adecoagro S.A.144,8151,447
Nuance Communications82,0511,429
Eagle Bancorp20,7601,314
Globant28,6601,245
Entertainment Arts Research, Inc.17,2911,243
Energen Corporation23,2051,146
Grupo De Inversiones Suramericana S.A.63,0931,141
Keane Group, Inc.68,1431,090
Fortune Brands Home & Security15,4321,007
E*TRADE Financial Corporation25,990988
CommScope Holding Company, Inc.25,322963
Pinnacle West Capital Corporation11,023939
Empresa Distribuidora Y Comercializadora Norte S.A. (Edenor)28,843920
ManpowerGroup8,197915
Atmos Energy Corporation10,647883
Imax Corporation40,049881
Cresud S.A.C.I.F. y A.43,573847
Agora Holdings, Inc.20,207843
BBVA Banco Frances S.A.44,553843
Owens Corning Inc12,564841
Douglas Emmett21,941838
NiSource31,749805
PacWest Bancorp17,195803
Zions Bancorporation17,903786
Flow International Corporation16,780779
Parsley Energy28,053778
lululemon athletica inc.12,956773
Xponential, Inc.11,646753
Leggett & Platt14,006736
CornerWorld Corp.6,112729
Hologic15,928723
Steel Partners Holdings LP20,165722
Mid-America Apartment Communities6,807717
Omega Flex11,042711
Cadence Design Systems21,122707
Lamb Weston Holdings, Inc.15,897700
Mednax11,300682
SVB Financial Group3,819671
American Financial Group5,480545
Akamai Technologies10,600528
Taubman Centers8,244491
Patterson-UTI Energy20,875421
Select Asset Inc.3,957314
Sanofi5,738275
Petrobras Argentina S.A.22,985171

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