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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $30.3B
1-Year Est. Return 33.75%
This Fund
S&P 500
This Quarter Est. Return
+6.15%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+788.31%
AUM
$26.9B
AUM Growth
+$687M
Cap. Flow
-$320M
Cap. Flow %
-1.19%
Top 10 Hldgs %
18.65%
Holding
522
New
90
Increased
140
Reduced
241
Closed
46

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$154M
2
DPZ icon
Domino's
DPZ
+$129M
3
NBIS
Nebius Group N.V.
NBIS
+$115M
4
ZTS icon
Zoetis
ZTS
+$104M
5
YELP icon
Yelp
YELP
+$103M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 15.39%
2 Technology 15.25%
3 Healthcare 14.14%
4 Financials 12.82%
5 Industrials 12.81%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
OEC icon
301
Orion
OEC
$384M
$13.8M 0.05%
448,909
+72,837
+19% +$2.12M
CVGW
302
DELISTED
Calavo Growers
CVGW
$13.8M 0.05%
143,091
+51,218
+56% +$4.76M
SLGN icon
303
Silgan Holdings
SLGN
$4.36B
$13.7M 0.05%
510,453
-10,609
-2% -$292K
SEI
304
Solaris Energy Infrastructure
SEI
$3.87B
$13.6M 0.05%
949,407
+256,448
+37% +$4.26M
CBB
305
DELISTED
Cincinnati Bell Inc.
CBB
$13.5M 0.05%
857,526
-25,601
-3% -$375K
BOOT icon
306
Boot Barn
BOOT
$5.08B
$13.5M 0.05%
648,246
+98,940
+18% +$2.09M
CARS icon
307
Cars.com
CARS
$634M
$13.3M 0.05%
469,083
+143,173
+44% +$3.94M
COR
308
DELISTED
Coresite Realty Corporation
COR
$13.3M 0.05%
+119,970
New +$12.7M
LPSN icon
309
LivePerson
LPSN
$32.4M
$13.1M 0.05%
41,281
-1,501
-4% -$424K
CPK icon
310
Chesapeake Utilities
CPK
$3.23B
$13M 0.05%
163,083
-104,254
-39% -$7.95M
CTLP
311
DELISTED
Cantaloupe
CTLP
$12.3M 0.05%
880,026
+109,670
+14% +$1.25M
SUPV
312
Grupo Supervielle
SUPV
$741M
$12M 0.04%
1,133,810
-786,051
-41% -$17.1M
ETSY icon
313
Etsy
ETSY
$7.34B
$11.8M 0.04%
279,023
-28,801
-9% -$937K
ESE icon
314
ESCO Technologies
ESE
$7.66B
$11.7M 0.04%
203,238
+16,870
+9% +$969K
HK
315
DELISTED
Halcon Resources Corporation
HK
$11.7M 0.04%
2,657,131
-86,252
-3% -$418K
HOME
316
DELISTED
At Home Group Inc.
HOME
$11.5M 0.04%
293,165
+31,042
+12% +$1.11M
MGPI icon
317
MGP Ingredients
MGPI
$388M
$11.4M 0.04%
128,105
+13,443
+12% +$1.21M
ORBC
318
DELISTED
ORBCOMM, Inc.
ORBC
$11.3M 0.04%
1,117,925
+380,310
+52% +$3.62M
AORT icon
319
Artivion
AORT
$1.39B
$11.2M 0.04%
401,299
+42,472
+12% +$1.07M
SUPN icon
320
Supernus Pharmaceuticals
SUPN
$2.8B
$11.1M 0.04%
184,848
-49,576
-21% -$2.57M
ANF icon
321
Abercrombie & Fitch
ANF
$5.23B
$11M 0.04%
+448,901
New +$11.7M
WNS
322
DELISTED
WNS Holdings
WNS
$10.8M 0.04%
207,111
+22,049
+12% +$1.09M
LCII icon
323
LCI Industries
LCII
$2.64B
$10.7M 0.04%
+118,734
New +$11M
ONC
324
BeOne Medicines Ltd
ONC
$40.8B
$10.5M 0.04%
+68,223
New +$12.2M
NWPX icon
325
NWPX Infrastructure Inc
NWPX
$1.08B
$10.4M 0.04%
535,745
-135,172
-20% -$2.75M

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William Blair Investment Management's Q2 2018 Portfolio in Review

As of Q2 2018, William Blair Investment Management held 522 positions worth $26.9B, up 2.6% from $26.2B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management's Q2 2018 filing shows 90 new, 140 increased, 241 reduced and 46 closed positions. Its largest new stake was GoDaddy: 2,731,356 shares worth $193M. The largest sale was Abiomed Inc, an estimated $154M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 15% of assets, up from 14% a quarter earlier, followed by Technology and Healthcare.

  • William Blair Investment Management's largest Q2 2018 buy was GoDaddy: 2,731,356 shares worth $193M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q2 2018, an estimated $99.1M increase.
  • William Blair Investment Management's biggest Q2 2018 reduction was Abiomed Inc, cutting an estimated $154M.
  • William Blair Investment Management fully exited Yelp in Q2 2018, selling an estimated $103M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $26.9B portfolio in Q2 2018.
  • William Blair Investment Management opened 90 new positions and closed 46 in Q2 2018.
  • William Blair Investment Management's portfolio value rose 2.6% quarter-over-quarter to $26.9B.

Based on William Blair Investment Management's 13F filing for Q2 2018, filed 14 Aug 2018.