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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
+6.58%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+771.69%
AUM
$26.4B
AUM Growth
+$1.13B
Cap. Flow
-$72.5M
Cap. Flow %
-0.27%
Top 10 Hldgs %
15.02%
Holding
487
New
36
Increased
164
Reduced
225
Closed
46

Top Buys

Rank Stock Value
1
BABA icon
Alibaba
BABA
+$235M
2
CNI icon
Canadian National Railway
CNI
+$114M
3
MJN
Mead Johnson Nutrition Company
MJN
+$99.2M
4
BWXT icon
BWX Technologies
BWXT
+$85.7M
5
NTES icon
NetEase
NTES
+$70.6M

Top Sells

Rank Stock Value
1
XLE icon
State Street Energy Select Sector SPDR ETF
XLE
+$203M
2
ABEV icon
Ambev
ABEV
+$178M
3
TEVA icon
Teva Pharmaceuticals
TEVA
+$169M
4
DG icon
Dollar General
DG
+$149M
5
SU icon
Suncor Energy
SU
+$142M

Sector Composition

Rank Sector Weight
1 Healthcare 12.31%
2 Financials 12.26%
3 Consumer Discretionary 12.11%
4 Technology 11.8%
5 Industrials 11.59%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TSM icon
1
TSMC
TSM
$2.1T
$646M 2.44%
21,102,575
+708,569
+3% +$20.3M
BABA icon
2
Alibaba
BABA
$293B
$485M 1.84%
4,586,625
+2,533,131
+123% +$235M
NTES icon
3
NetEase
NTES
$85.3B
$419M 1.59%
8,701,350
+1,659,250
+24% +$70.6M
SPY icon
4
State Street SPDR S&P 500 ETF Trust
SPY
$790B
$411M 1.56%
1,900,824
-97,300
-5% -$21M
OEF icon
5
PUT
iShares S&P 100 ETF
OEF
$20.1B
$377M 1.43%
+7,294,300
New +$700M
TDG icon
6
TransDigm Group
TDG
$70.2B
$334M 1.26%
1,154,303
+3,895
+0.3% +$1.09M
CSGP icon
7
CoStar Group
CSGP
$11.7B
$328M 1.24%
15,161,280
-381,930
-2% -$8.13M
AMZN icon
8
Amazon
AMZN
$2.92T
$326M 1.23%
7,780,180
-238,740
-3% -$9.14M
IWD icon
9
iShares Russell 1000 Value ETF
IWD
$82.2B
$322M 1.22%
3,052,700
-216,200
-7% -$22.8M
MD icon
10
Pediatrix Medical
MD
$2.18B
$322M 1.22%
4,857,774
-203,989
-4% -$14M
WP
11
DELISTED
Worldpay, Inc.
WP
$320M 1.21%
5,681,191
-26,912
-0.5% -$1.49M
GOOGL icon
12
Alphabet (Google) Class A
GOOGL
$4.36T
$313M 1.18%
7,783,300
+160,040
+2% +$6.26M
NXPI icon
13
NXP Semiconductors
NXPI
$57.8B
$312M 1.18%
3,061,073
-271,225
-8% -$23M
ODFL icon
14
Old Dominion Freight Line
ODFL
$44.1B
$301M 1.14%
13,146,681
-56,013
-0.4% -$1.27M
SBAC icon
15
SBA Communications
SBAC
$19.2B
$299M 1.13%
2,670,130
+420,333
+19% +$47.5M
CERN
16
DELISTED
Cerner Corp
CERN
$289M 1.09%
4,680,458
+93,139
+2% +$5.88M
CNC icon
17
Centene
CNC
$30.7B
$279M 1.06%
8,327,608
-57,602
-0.7% -$2M
AKAM icon
18
Akamai
AKAM
$16.7B
$271M 1.02%
5,107,868
+679,307
+15% +$36.4M
MSFT icon
19
Microsoft
MSFT
$3.45T
$269M 1.02%
4,669,109
+844,634
+22% +$47.7M
RHT
20
DELISTED
Red Hat Inc
RHT
$268M 1.01%
3,317,646
+392,617
+13% +$29.2M
BN icon
21
Brookfield
BN
$104B
$267M 1.01%
21,267,461
-151,152
-0.7% -$1.85M
AMG icon
22
Affiliated Managers Group
AMG
$9.69B
$267M 1.01%
1,841,800
+50,245
+3% +$7.19M
GWRE icon
23
Guidewire Software
GWRE
$12.6B
$252M 0.95%
4,206,691
-930,216
-18% -$57.3M
ZTS icon
24
Zoetis
ZTS
$32.4B
$248M 0.94%
4,774,219
+1,061,068
+29% +$53.7M
ICE icon
25
Intercontinental Exchange
ICE
$85.6B
$242M 0.92%
4,496,405
-331,920
-7% -$18.1M
1
2 3 4 5

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William Blair Investment Management's Q3 2016 Portfolio in Review

As of Q3 2016, William Blair Investment Management held 487 positions worth $26.4B, up 4.5% from $25.3B the previous quarter. Its ten largest holdings account for 15% of the portfolio.

William Blair Investment Management's Q3 2016 filing shows 36 new, 164 increased, 225 reduced and 46 closed positions. Its largest new stake was BWX Technologies: 2,269,571 shares worth $87.1M. The largest sale was State Street Energy Select Sector SPDR ETF, an estimated $203M.

By sector, the portfolio is most concentrated in Healthcare at 12% of assets, down from 14% a quarter earlier, followed by Financials and Consumer Discretionary.

  • William Blair Investment Management's largest Q3 2016 buy was BWX Technologies: 2,269,571 shares worth $87.1M.
  • William Blair Investment Management added most to Alibaba in Q3 2016, an estimated $235M increase.
  • William Blair Investment Management's biggest Q3 2016 reduction was State Street Energy Select Sector SPDR ETF, cutting an estimated $203M.
  • William Blair Investment Management fully exited Teva Pharmaceuticals in Q3 2016, selling an estimated $169M.
  • William Blair Investment Management's ten largest holdings make up 15% of its $26.4B portfolio in Q3 2016.
  • William Blair Investment Management opened 36 new positions and closed 46 in Q3 2016.
  • William Blair Investment Management's portfolio value rose 4.5% quarter-over-quarter to $26.4B.

Based on William Blair Investment Management's 13F filing for Q3 2016, filed 14 Nov 2016.