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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+3.6%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$38.1B
AUM Growth
-$567M
Cap. Flow
-$555M
Cap. Flow %
-1.46%
Top 10 Hldgs %
28.43%
Holding
458
New
48
Increased
125
Reduced
209
Closed
47

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$739M
2
EXAS
Exact Sciences
EXAS
+$213M
3
CFLT
Confluent
CFLT
+$188M
4
SN icon
SharkNinja
SN
+$179M
5
PLNT icon
Planet Fitness
PLNT
+$147M

Top Sells

Rank Stock Value
1
SMCI icon
Super Micro Computer
SMCI
+$228M
2
CRH icon
CRH
CRH
+$217M
3
LULU icon
lululemon athletica
LULU
+$210M
4
TW icon
Tradeweb Markets
TW
+$190M
5
LYV icon
Live Nation Entertainment
LYV
+$175M

Sector Composition

Rank Sector Weight
1 Technology 34.09%
2 Consumer Discretionary 14.21%
3 Healthcare 13.5%
4 Industrials 11.25%
5 Financials 8.95%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
EXLS icon
76
EXL Service
EXLS
$5.29B
$160M 0.42%
5,097,925
+1,618,003
+46% +$48.6M
GTLS
77
DELISTED
Chart Industries
GTLS
$160M 0.42%
1,106,493
-205,879
-16% -$31.1M
TWST icon
78
Twist Bioscience
TWST
$7.72B
$157M 0.41%
3,184,386
-324,816
-9% -$13.2M
NOVT icon
79
Novanta
NOVT
$6.34B
$157M 0.41%
960,152
+4,079
+0.4% +$662K
CF icon
80
CF Industries
CF
$17.8B
$151M 0.4%
2,041,990
-102,817
-5% -$7.98M
LRN icon
81
Stride
LRN
$3.29B
$150M 0.39%
2,122,102
+355,614
+20% +$23.7M
PEN icon
82
Penumbra
PEN
$12.9B
$148M 0.39%
824,979
-8,724
-1% -$1.74M
BLDR icon
83
Builders FirstSource
BLDR
$8.08B
$146M 0.38%
1,051,461
+12,518
+1% +$2.13M
TREX icon
84
Trex
TREX
$5.07B
$144M 0.38%
1,937,694
-19,473
-1% -$1.7M
GMED icon
85
Globus Medical
GMED
$11.4B
$141M 0.37%
2,057,019
-179,895
-8% -$10.7M
TENB icon
86
Tenable Holdings
TENB
$4.17B
$141M 0.37%
3,228,968
-262,333
-8% -$11.6M
A icon
87
Agilent Technologies
A
$42.2B
$133M 0.35%
1,027,351
+148,365
+17% +$20.7M
FSV icon
88
FirstService
FSV
$6.3B
$131M 0.34%
861,871
+6,863
+0.8% +$1.04M
EXP icon
89
Eagle Materials
EXP
$6.57B
$129M 0.34%
595,276
+28,003
+5% +$6.86M
SHOP icon
90
Shopify
SHOP
$196B
$129M 0.34%
1,956,787
+26,784
+1% +$1.78M
FOLD
91
DELISTED
Amicus Therapeutics
FOLD
$129M 0.34%
13,003,363
+1,477,084
+13% +$15.2M
CHDN icon
92
Churchill Downs
CHDN
$6.18B
$125M 0.33%
+898,411
New +$118M
ONON icon
93
On Holding
ONON
$10.3B
$125M 0.33%
3,215,444
-224,704
-7% -$8.21M
ALRM icon
94
Alarm.com
ALRM
$2.77B
$119M 0.31%
1,880,084
-206,346
-10% -$13.6M
BWIN
95
Baldwin Insurance Group
BWIN
$2.88B
$109M 0.29%
3,083,281
+157,631
+5% +$4.88M
BURL icon
96
Burlington
BURL
$22.6B
$109M 0.29%
453,743
-5,807
-1% -$1.2M
VRNS icon
97
Varonis Systems
VRNS
$4.84B
$106M 0.28%
2,217,967
+23,231
+1% +$1.03M
INSP icon
98
Inspire Medical Systems
INSP
$1.71B
$103M 0.27%
770,413
+13,602
+2% +$2.57M
ENTG icon
99
Entegris
ENTG
$23B
$98.4M 0.26%
726,745
-5,585
-0.8% -$737K
GNRC icon
100
Generac Holdings
GNRC
$12.7B
$98.3M 0.26%
+743,325
New +$103M
2 3
4
5 6

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William Blair Investment Management's Q2 2024 Portfolio in Review

As of Q2 2024, William Blair Investment Management held 458 positions worth $38.1B, down 1.5% from $38.7B the previous quarter. Its ten largest holdings account for 28% of the portfolio.

William Blair Investment Management's Q2 2024 filing shows 48 new, 125 increased, 209 reduced and 47 closed positions. Its largest new stake was Apple: 3,961,485 shares worth $834M. The largest sale was Super Micro Computer, an estimated $228M.

By sector, the portfolio is most concentrated in Technology at 34% of assets, up from 30% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • William Blair Investment Management's largest Q2 2024 buy was Apple: 3,961,485 shares worth $834M.
  • William Blair Investment Management added most to Uber in Q2 2024, an estimated $124M increase.
  • William Blair Investment Management's biggest Q2 2024 reduction was CRH, cutting an estimated $217M.
  • William Blair Investment Management fully exited Super Micro Computer in Q2 2024, selling an estimated $228M.
  • William Blair Investment Management's ten largest holdings make up 28% of its $38.1B portfolio in Q2 2024.
  • William Blair Investment Management opened 48 new positions and closed 47 in Q2 2024.
  • William Blair Investment Management's portfolio value fell 1.5% quarter-over-quarter to $38.1B.

Based on William Blair Investment Management's 13F filing for Q2 2024, filed 8 Aug 2024.