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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
+7.86%
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
$28.9B
AUM Growth
+$2.01B
Cap. Flow
+$420M
Cap. Flow %
1.46%
Top 10 Hldgs %
17.78%
Holding
509
New
33
Increased
212
Reduced
167
Closed
90

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$228M
2
BN icon
Brookfield
BN
+$96.9M
3
EEFT icon
Euronet Worldwide
EEFT
+$92.3M
4
TFX icon
Teleflex
TFX
+$84.9M
5
P
Everpure Inc
P
+$79.7M

Top Sells

Rank Stock Value
1
YUMC icon
Yum China
YUMC
+$188M
2
CRL icon
Charles River Laboratories
CRL
+$188M
3
FND icon
Floor & Decor
FND
+$129M
4
TWOU
2U Inc
TWOU
+$87.5M
5
MTN icon
Vail Resorts
MTN
+$71.8M

Sector Composition

Rank Sector Weight
1 Technology 16.83%
2 Healthcare 15.47%
3 Industrials 13.49%
4 Consumer Discretionary 13%
5 Financials 12.64%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ICE icon
76
Intercontinental Exchange
ICE
$84.9B
$130M 0.45%
1,729,430
-59,997
-3% -$4.51M
RBA icon
77
RB Global
RBA
$16.6B
$126M 0.44%
3,499,789
+220,723
+7% +$7.89M
EWBC icon
78
East-West Bancorp
EWBC
$18.2B
$122M 0.42%
2,026,906
-90,125
-4% -$5.79M
FSV icon
79
FirstService
FSV
$6.3B
$122M 0.42%
1,444,422
+89,665
+7% +$7.45M
ECPG icon
80
Encore Capital Group
ECPG
$1.98B
$121M 0.42%
3,376,137
+241,683
+8% +$9.16M
ABMD
81
DELISTED
Abiomed Inc
ABMD
$120M 0.42%
267,277
-16,097
-6% -$6.35M
LULU icon
82
lululemon athletica
LULU
$14.3B
$119M 0.41%
730,113
-9,517
-1% -$1.3M
AXTA icon
83
Axalta
AXTA
$7.98B
$116M 0.4%
3,986,483
+163,372
+4% +$4.9M
EL icon
84
Estee Lauder
EL
$31.8B
$111M 0.38%
764,505
-19,604
-3% -$2.72M
FTV icon
85
Fortive
FTV
$18.6B
$111M 0.38%
2,089,295
-41,666
-2% -$2.14M
SITE icon
86
SiteOne Landscape Supply
SITE
$4.32B
$111M 0.38%
1,472,285
+91,138
+7% +$8M
NBIS
87
Nebius Group N.V.
NBIS
$49.1B
$107M 0.37%
3,263,765
+671,188
+26% +$22.7M
RHT
88
DELISTED
Red Hat Inc
RHT
$107M 0.37%
786,719
-21,757
-3% -$3.11M
TREE icon
89
LendingTree
TREE
$443M
$106M 0.37%
461,906
+160,617
+53% +$38.2M
EFX icon
90
Equifax
EFX
$21.4B
$106M 0.37%
812,688
+270,882
+50% +$35.3M
NUS icon
91
Nu Skin
NUS
$236M
$104M 0.36%
1,263,139
+80,117
+7% +$6.37M
JLL icon
92
Jones Lang LaSalle
JLL
$16.7B
$104M 0.36%
720,128
+36,907
+5% +$5.8M
ROST icon
93
Ross Stores
ROST
$80.8B
$101M 0.35%
1,021,571
-119,343
-10% -$11M
QGEN icon
94
Qiagen
QGEN
$8.81B
$100M 0.35%
2,488,358
+795,823
+47% +$31.8M
SHOP icon
95
Shopify
SHOP
$196B
$99.8M 0.35%
6,065,850
-1,633,120
-21% -$24.9M
DCI icon
96
Donaldson
DCI
$11.2B
$94.9M 0.33%
1,629,463
+85,798
+6% +$4.31M
CIGI icon
97
Colliers International
CIGI
$5.3B
$94.4M 0.33%
1,217,173
+78,358
+7% +$6.26M
OZK icon
98
Bank OZK
OZK
$5.66B
$93.4M 0.32%
2,461,348
+126,098
+5% +$5.18M
ACN icon
99
Accenture
ACN
$110B
$92.6M 0.32%
543,924
-14,499
-3% -$2.41M
ICLR icon
100
Icon
ICLR
$12.8B
$90.9M 0.31%
591,017
-7,126
-1% -$1.02M
2 3
4
5 6

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William Blair Investment Management's Q3 2018 Portfolio in Review

As of Q3 2018, William Blair Investment Management held 509 positions worth $28.9B, up 7.5% from $26.9B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair Investment Management's Q3 2018 filing shows 33 new, 212 increased, 167 reduced and 90 closed positions. Its largest new stake was Rogers Communications: 4,461,925 shares worth $229M. The largest sale was Yum China, an estimated $188M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, up from 15% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair Investment Management's largest Q3 2018 buy was Rogers Communications: 4,461,925 shares worth $229M.
  • William Blair Investment Management added most to Brookfield in Q3 2018, an estimated $96.9M increase.
  • William Blair Investment Management's biggest Q3 2018 reduction was Vail Resorts, cutting an estimated $71.8M.
  • William Blair Investment Management fully exited Yum China in Q3 2018, selling an estimated $188M.
  • William Blair Investment Management's ten largest holdings make up 18% of its $28.9B portfolio in Q3 2018.
  • William Blair Investment Management opened 33 new positions and closed 90 in Q3 2018.
  • William Blair Investment Management's portfolio value rose 7.5% quarter-over-quarter to $28.9B.

Based on William Blair Investment Management's 13F filing for Q3 2018, filed 13 Nov 2018.