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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
+1.57%
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
$23.4B
AUM Growth
-$452M
Cap. Flow
-$478M
Cap. Flow %
-2.05%
Top 10 Hldgs %
20.73%
Holding
398
New
26
Increased
153
Reduced
172
Closed
41

Top Buys

Rank Stock Value
1
IAA
IAA, Inc. Common Stock
IAA
+$134M
2
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$128M
3
WWE
World Wrestling Entertainment
WWE
+$112M
4
PFPT
Proofpoint, Inc.
PFPT
+$102M
5
PRSP
Perspecta Inc. Common Stock
PRSP
+$97.8M

Top Sells

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$201M
2
CSGP icon
CoStar Group
CSGP
+$173M
3
CPRT icon
Copart
CPRT
+$156M
4
GWR
Genesee & Wyoming Inc.
GWR
+$147M
5
DPZ icon
Domino's
DPZ
+$137M

Sector Composition

Rank Sector Weight
1 Technology 20.24%
2 Healthcare 13.8%
3 Consumer Discretionary 13.77%
4 Industrials 13.46%
5 Financials 13.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LULU icon
101
lululemon athletica
LULU
$14.3B
$63.1M 0.27%
327,727
+16,444
+5% +$3.07M
VEEV icon
102
Veeva Systems
VEEV
$38.4B
$62.9M 0.27%
412,194
-57,096
-12% -$9.16M
QGEN icon
103
Qiagen
QGEN
$8.81B
$62.3M 0.27%
1,781,785
-233,447
-12% -$8.98M
ROP icon
104
Roper Technologies
ROP
$39.5B
$61.8M 0.26%
173,287
-9,795
-5% -$3.56M
JPM icon
105
JPMorgan Chase
JPM
$962B
$61.2M 0.26%
519,606
+2,525
+0.5% +$286K
MELI icon
106
Mercado Libre
MELI
$98.4B
$57.7M 0.25%
104,733
-418
-0.4% -$253K
TMO icon
107
Thermo Fisher Scientific
TMO
$224B
$57.3M 0.25%
196,752
+954
+0.5% +$273K
ULTA icon
108
Ulta Beauty
ULTA
$23.3B
$57M 0.24%
227,592
+619
+0.3% +$190K
BLK icon
109
Blackrock
BLK
$178B
$55.1M 0.24%
123,747
+600
+0.5% +$267K
NEE icon
110
NextEra Energy
NEE
$179B
$54.4M 0.23%
933,340
+4,528
+0.5% +$245K
KO icon
111
Coca-Cola
KO
$372B
$53.3M 0.23%
978,488
+117,041
+14% +$6.27M
TXN icon
112
Texas Instruments
TXN
$257B
$52.2M 0.22%
404,090
-13,019
-3% -$1.6M
ACN icon
113
Accenture
ACN
$110B
$51.7M 0.22%
268,899
-39,775
-13% -$7.7M
APTV icon
114
Aptiv
APTV
$10.3B
$51.7M 0.22%
591,567
+46,310
+8% +$3.87M
LQD icon
115
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.6B
$50.5M 0.22%
395,980
-18,700
-5% -$2.36M
EWZ icon
116
iShares MSCI Brazil ETF
EWZ
$8.6B
$50.1M 0.21%
1,188,400
-352,170
-23% -$15.2M
LMT icon
117
Lockheed Martin
LMT
$138B
$49.9M 0.21%
+127,877
New +$48.1M
ABEV icon
118
Ambev
ABEV
$43.9B
$48.9M 0.21%
10,577,391
-478,840
-4% -$2.29M
EFX icon
119
Equifax
EFX
$21.4B
$47.1M 0.2%
334,624
-25,535
-7% -$3.6M
BA icon
120
Boeing
BA
$184B
$47M 0.2%
123,505
+555
+0.5% +$198K
WIX icon
121
WIX.com
WIX
$2.79B
$46.4M 0.2%
397,790
-25,798
-6% -$3.59M
GREK
122
Global X MSCI Greece ETF
GREK
$330M
$46.2M 0.2%
1,649,300
+25,247
+2% +$704K
EDU icon
123
New Oriental
EDU
$8.84B
$46.1M 0.2%
416,511
+25,994
+7% +$2.72M
TAL icon
124
TAL Education Group
TAL
$6.75B
$44.7M 0.19%
1,305,474
-55,138
-4% -$1.92M
BALL icon
125
Ball Corp
BALL
$16.6B
$43.4M 0.19%
595,769
-148,160
-20% -$11M
3 4
5
6 7

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William Blair Investment Management's Q3 2019 Portfolio in Review

As of Q3 2019, William Blair Investment Management held 398 positions worth $23.4B, down 1.9% from $23.8B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair Investment Management's Q3 2019 filing shows 26 new, 153 increased, 172 reduced and 41 closed positions. Its largest new stake was IAA, Inc. Common Stock: 2,969,390 shares worth $124M. The largest sale was Rogers Communications, an estimated $201M.

By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 18% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q3 2019 buy was IAA, Inc. Common Stock: 2,969,390 shares worth $124M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q3 2019, an estimated $128M increase.
  • William Blair Investment Management's biggest Q3 2019 reduction was CoStar Group, cutting an estimated $173M.
  • William Blair Investment Management fully exited Rogers Communications in Q3 2019, selling an estimated $201M.
  • William Blair Investment Management's ten largest holdings make up 21% of its $23.4B portfolio in Q3 2019.
  • William Blair Investment Management opened 26 new positions and closed 41 in Q3 2019.
  • William Blair Investment Management's portfolio value fell 1.9% quarter-over-quarter to $23.4B.

Based on William Blair Investment Management's 13F filing for Q3 2019, filed 12 Nov 2019.