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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
+8.82%
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
$27.9B
AUM Growth
+$434M
Cap. Flow
-$1.39B
Cap. Flow %
-4.97%
Top 10 Hldgs %
16.81%
Holding
485
New
38
Increased
170
Reduced
217
Closed
52

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$124M
2
WEX icon
WEX
WEX
+$108M
3
DXCM icon
DexCom
DXCM
+$100M
4
TSM icon
TSMC
TSM
+$99.8M
5
YELP icon
Yelp
YELP
+$93.8M

Top Sells

Rank Stock Value
1
ORLY icon
O'Reilly Automotive
ORLY
+$155M
2
SBNY
Signature Bank
SBNY
+$152M
3
ODFL icon
Old Dominion Freight Line
ODFL
+$132M
4
BABA icon
Alibaba
BABA
+$128M
5
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$119M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 15.32%
2 Industrials 13.97%
3 Financials 13.47%
4 Technology 12.68%
5 Healthcare 12.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HTHT icon
101
Huazhu Hotels Group
HTHT
$13.1B
$94.3M 0.34%
3,174,684
+776,284
+32% +$20.1M
DHR icon
102
Danaher
DHR
$145B
$93.8M 0.34%
1,234,115
-693,977
-36% -$51.4M
SITE icon
103
SiteOne Landscape Supply
SITE
$4.38B
$92.6M 0.33%
1,593,421
-2,007
-0.1% -$105K
BMRN icon
104
BioMarin Pharmaceuticals
BMRN
$13.3B
$92.2M 0.33%
990,261
-72,245
-7% -$6.38M
JLL icon
105
Jones Lang LaSalle
JLL
$16.5B
$91.8M 0.33%
743,017
+137,252
+23% +$17M
EL icon
106
Estee Lauder
EL
$31.5B
$90.5M 0.32%
838,958
+276,513
+49% +$28.4M
DNB
107
DELISTED
Dun & Bradstreet
DNB
$85.8M 0.31%
737,455
+6,415
+0.9% +$713K
WST icon
108
West Pharmaceutical
WST
$25B
$85.6M 0.31%
+888,761
New +$80.4M
EEFT icon
109
Euronet Worldwide
EEFT
$2.63B
$83.7M 0.3%
882,784
+3,309
+0.4% +$314K
FSV icon
110
FirstService
FSV
$6.27B
$83.6M 0.3%
1,271,892
-226,305
-15% -$14.8M
COHR
111
DELISTED
Coherent Inc
COHR
$82.4M 0.3%
+350,341
New +$84.5M
WAB icon
112
Wabtec
WAB
$49.4B
$82.2M 0.29%
1,084,782
-1,264,622
-54% -$97.3M
TTC icon
113
Toro Company
TTC
$9.36B
$81.7M 0.29%
1,317,082
-4,729
-0.4% -$317K
WB icon
114
Weibo
WB
$1.96B
$78.5M 0.28%
793,040
-47,737
-6% -$4.21M
IWF icon
115
iShares Russell 1000 Growth ETF
IWF
$127B
$77M 0.28%
2,463,600
-175,200
-7% -$5.36M
EDU icon
116
New Oriental
EDU
$9.17B
$76.4M 0.27%
865,770
+307,156
+55% +$25M
ACN icon
117
Accenture
ACN
$109B
$74.7M 0.27%
553,321
-222,217
-29% -$29M
BLK icon
118
Blackrock
BLK
$175B
$72.8M 0.26%
162,880
-1,829
-1% -$781K
INDA icon
119
iShares MSCI India ETF
INDA
$6.6B
$72.2M 0.26%
2,198,200
-143,300
-6% -$4.85M
XYL icon
120
Xylem
XYL
$28.4B
$70.8M 0.25%
1,130,881
+262,203
+30% +$15.7M
VMC icon
121
Vulcan Materials
VMC
$36.8B
$70.3M 0.25%
587,915
-260,049
-31% -$31.2M
BSAC icon
122
Banco Santander Chile
BSAC
$16.7B
$69.7M 0.25%
2,347,619
+517,542
+28% +$14.7M
DXCM icon
123
DexCom
DXCM
$33.1B
$69.4M 0.25%
+5,673,300
New +$100M
COST icon
124
Costco
COST
$421B
$69.3M 0.25%
421,594
+58,441
+16% +$9.18M
JPM icon
125
JPMorgan Chase
JPM
$952B
$68.8M 0.25%
719,909
-8,028
-1% -$740K
3 4
5
6 7

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William Blair Investment Management's Q3 2017 Portfolio in Review

As of Q3 2017, William Blair Investment Management held 485 positions worth $27.9B, up 1.6% from $27.5B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $1.39B in Q3 2017, closing 52 positions and reducing 217 holdings. Its most notable exit was Amedisys, an estimated $91.9M position sold in full.

By sector, the portfolio is most concentrated in Consumer Discretionary at 15% of assets, down from 16% a quarter earlier, followed by Industrials and Financials.

Against the trend, William Blair Investment Management opened a new position in Rogers Communications worth $125M.

  • William Blair Investment Management's largest Q3 2017 buy was Rogers Communications: 2,429,600 shares worth $125M.
  • William Blair Investment Management added most to TSMC in Q3 2017, an estimated $99.8M increase.
  • William Blair Investment Management's biggest Q3 2017 reduction was O'Reilly Automotive, cutting an estimated $155M.
  • William Blair Investment Management fully exited Amedisys in Q3 2017, selling an estimated $91.9M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $27.9B portfolio in Q3 2017.
  • William Blair Investment Management opened 38 new positions and closed 52 in Q3 2017.
  • William Blair Investment Management's portfolio value rose 1.6% quarter-over-quarter to $27.9B.

Based on William Blair Investment Management's 13F filing for Q3 2017, filed 13 Nov 2017.