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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
+5.95%
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
$26.2B
AUM Growth
+$458M
Cap. Flow
-$585M
Cap. Flow %
-2.23%
Top 10 Hldgs %
18.81%
Holding
469
New
42
Increased
160
Reduced
224
Closed
36

Sector Composition

Rank Sector Weight
1 Technology 14.91%
2 Financials 14.73%
3 Consumer Discretionary 14.13%
4 Industrials 13.07%
5 Healthcare 12.8%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
YPF icon
151
YPF Sociedad Anonima American Depositary Shares (Each representing ten (10) Class D shares of Capital Stock)
YPF
$19.3B
$46.6M 0.18%
2,155,570
+1,908,497
+772% +$44.2M
GS icon
152
Goldman Sachs
GS
$301B
$45.1M 0.17%
178,957
-4,116
-2% -$1.07M
FND icon
153
Floor & Decor
FND
$6.44B
$42.6M 0.16%
+817,184
New +$38.6M
SQM icon
154
Sociedad Química y Minera de Chile
SQM
$20.6B
$42.4M 0.16%
861,876
-804,239
-48% -$43.5M
PPG icon
155
PPG Industries
PPG
$25.8B
$40.4M 0.15%
362,320
-16,291
-4% -$1.88M
TMO icon
156
Thermo Fisher Scientific
TMO
$224B
$40.2M 0.15%
194,583
-58,140
-23% -$12.2M
JOBS
157
DELISTED
51job Inc
JOBS
$40M 0.15%
465,193
+381,465
+456% +$27.5M
AMG icon
158
Affiliated Managers Group
AMG
$9.48B
$40M 0.15%
210,850
-1,020,615
-83% -$199M
PYPL icon
159
PayPal
PYPL
$50.5B
$39.7M 0.15%
+523,852
New +$41.5M
BMRN icon
160
BioMarin Pharmaceuticals
BMRN
$13.5B
$39.1M 0.15%
482,850
-94,826
-16% -$8.14M
CCL icon
161
Carnival Corporation Ltd
CCL
$38B
$39.1M 0.15%
596,516
+58,587
+11% +$3.98M
GBCI icon
162
Glacier Bancorp
GBCI
$6.39B
$38.2M 0.15%
994,898
-20,603
-2% -$811K
LOMA
163
Loma Negra
LOMA
$1.16B
$38M 0.15%
1,784,061
+36,758
+2% +$835K
GREK
164
Global X MSCI Greece ETF
GREK
$330M
$37M 0.14%
1,271,800
+30,833
+2% +$977K
ADI icon
165
Analog Devices
ADI
$188B
$36.7M 0.14%
402,398
-100,835
-20% -$9.18M
HOMB icon
166
Home BancShares
HOMB
$6.22B
$35M 0.13%
1,534,449
-30,487
-2% -$731K
SIGI icon
167
Selective Insurance
SIGI
$5.6B
$34.8M 0.13%
573,771
-18,628
-3% -$1.1M
PAM icon
168
Pampa Energía
PAM
$4.28B
$34.6M 0.13%
580,556
+27,753
+5% +$1.81M
MHK icon
169
Mohawk Industries
MHK
$9.26B
$34.2M 0.13%
+147,203
New +$37.9M
AVGO icon
170
Broadcom
AVGO
$1.98T
$34M 0.13%
1,441,620
-344,170
-19% -$8.67M
TDG icon
171
TransDigm Group
TDG
$68.7B
$34M 0.13%
110,680
-14,775
-12% -$4.35M
LRCX icon
172
Lam Research
LRCX
$390B
$32.9M 0.13%
1,620,100
-36,920
-2% -$731K
CRM icon
173
Salesforce
CRM
$162B
$32.5M 0.12%
279,229
-6,325
-2% -$726K
BIIB icon
174
Biogen
BIIB
$30.1B
$32.4M 0.12%
118,198
-28,427
-19% -$8.82M
TILE icon
175
Interface
TILE
$2.24B
$32.3M 0.12%
1,283,340
-179,428
-12% -$4.45M

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William Blair Investment Management's Q1 2018 Portfolio in Review

As of Q1 2018, William Blair Investment Management held 469 positions worth $26.2B, up 1.8% from $25.7B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management's Q1 2018 filing shows 42 new, 160 increased, 224 reduced and 36 closed positions. Its largest new stake was Healthcare Services Group: 3,458,904 shares worth $150M. The largest sale was Maximus, an estimated $224M.

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

  • William Blair Investment Management's largest Q1 2018 buy was Healthcare Services Group: 3,458,904 shares worth $150M.
  • William Blair Investment Management added most to PARSLEY ENERGY INC in Q1 2018, an estimated $136M increase.
  • William Blair Investment Management's biggest Q1 2018 reduction was Canadian National Railway, cutting an estimated $212M.
  • William Blair Investment Management fully exited Maximus in Q1 2018, selling an estimated $224M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $26.2B portfolio in Q1 2018.
  • William Blair Investment Management opened 42 new positions and closed 36 in Q1 2018.
  • William Blair Investment Management's portfolio value rose 1.8% quarter-over-quarter to $26.2B.

Based on William Blair Investment Management's 13F filing for Q1 2018, filed 14 May 2018.