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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 Buys

Rank Stock Value
1
GDDY icon
GoDaddy
GDDY
+$186M
2
PODD icon
Insulet
PODD
+$107M
3
GWR
Genesee & Wyoming Inc.
GWR
+$106M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$99.1M
5
FND icon
Floor & Decor
FND
+$92.3M

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
CCL icon
176
Carnival Corporation Ltd
CCL
$37.9B
$34M 0.13%
593,642
-2,874
-0.5% -$182K
BIIB icon
177
Biogen
BIIB
$30.3B
$33.3M 0.12%
114,696
-3,502
-3% -$985K
ROP icon
178
Roper Technologies
ROP
$39.7B
$33M 0.12%
119,497
+32,620
+38% +$9M
GBCI icon
179
Glacier Bancorp
GBCI
$6.39B
$32.6M 0.12%
843,130
-151,768
-15% -$5.92M
IDXX icon
180
Idexx Laboratories
IDXX
$46.7B
$32.6M 0.12%
149,506
-122,779
-45% -$25.3M
EDU icon
181
New Oriental
EDU
$8.87B
$31.9M 0.12%
336,756
+51,128
+18% +$4.89M
THG icon
182
Hanover Insurance
THG
$7.86B
$31.3M 0.12%
262,068
-7,491
-3% -$891K
WW
183
DELISTED
WW International
WW
$30.6M 0.11%
302,563
-1,245
-0.4% -$97.8K
ITGR icon
184
Integer Holdings
ITGR
$4.25B
$30M 0.11%
464,694
-14,019
-3% -$869K
STL
185
DELISTED
Sterling Bancorp
STL
$30M 0.11%
1,276,809
+84,538
+7% +$2.02M
LUV icon
186
Southwest Airlines
LUV
$22.4B
$29.9M 0.11%
587,850
+70,292
+14% +$3.7M
CPE
187
DELISTED
Callon Petroleum Company
CPE
$29.3M 0.11%
272,743
+114,932
+73% +$14.2M
CNMD icon
188
CONMED
CNMD
$1.51B
$29.3M 0.11%
400,000
-12,591
-3% -$856K
AKR icon
189
Acadia Realty Trust
AKR
$2.79B
$28.4M 0.11%
1,038,776
+69,635
+7% +$1.75M
JNK icon
190
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.3B
$28.3M 0.11%
265,567
-8,266
-3% -$888K
WSO icon
191
Watsco Inc
WSO
$13.4B
$28.3M 0.11%
158,474
-703
-0.4% -$128K
WSFS icon
192
WSFS Financial
WSFS
$4.15B
$28.2M 0.1%
528,633
-17,237
-3% -$894K
GGAL icon
193
Galicia Financial Group
GGAL
$7.14B
$27.9M 0.1%
846,444
-636,193
-43% -$32.7M
LRCX icon
194
Lam Research
LRCX
$389B
$27.9M 0.1%
1,612,770
-7,330
-0.5% -$141K
SIGI icon
195
Selective Insurance
SIGI
$5.63B
$27.8M 0.1%
505,710
-68,061
-12% -$3.95M
EWJ icon
196
iShares MSCI Japan ETF
EWJ
$22.7B
$27.7M 0.1%
479,000
-2,400
-0.5% -$145K
NOAH
197
Noah Holdings
NOAH
$591M
$27.7M 0.1%
530,539
+168,346
+46% +$9.52M
XLE icon
198
State Street Energy Select Sector SPDR ETF
XLE
$39.8B
$27.5M 0.1%
723,800
-119,700
-14% -$4.45M
NTRI
199
DELISTED
NutriSystem, Inc.
NTRI
$26.9M 0.1%
699,077
+562,832
+413% +$18.7M
ISRG icon
200
Intuitive Surgical
ISRG
$142B
$26.8M 0.1%
167,778
+152,997
+1,035% +$23.3M
6 7
8
9 10

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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.