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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
-2.74%
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
$30.1B
AUM Growth
-$1.09B
Cap. Flow
+$378M
Cap. Flow %
1.26%
Top 10 Hldgs %
21.93%
Holding
430
New
35
Increased
162
Reduced
197
Closed
32

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$192M
2
SMCI icon
Super Micro Computer
SMCI
+$143M
3
LSCC icon
Lattice Semiconductor
LSCC
+$129M
4
CG icon
Carlyle Group
CG
+$114M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$111M

Top Sells

Rank Stock Value
1
DEN
Denbury Inc.
DEN
+$179M
2
PLNT icon
Planet Fitness
PLNT
+$170M
3
MLM icon
Martin Marietta Materials
MLM
+$141M
4
BLDR icon
Builders FirstSource
BLDR
+$135M
5
CCJ icon
Cameco
CCJ
+$123M

Sector Composition

Rank Sector Weight
1 Technology 25.88%
2 Industrials 15.76%
3 Healthcare 15.67%
4 Consumer Discretionary 13.72%
5 Financials 8.88%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CVX icon
151
Chevron
CVX
$386B
$40.5M 0.13%
240,131
-5,405
-2% -$873K
GVA icon
152
Granite Construction
GVA
$5.52B
$40.4M 0.13%
1,062,492
-81,938
-7% -$3.33M
WDAY icon
153
Workday
WDAY
$43.3B
$40M 0.13%
186,348
-4,264
-2% -$989K
BLMN icon
154
Bloomin' Brands
BLMN
$975M
$39.8M 0.13%
1,620,503
-120,995
-7% -$3.21M
PBF icon
155
PBF Energy
PBF
$8.34B
$39.3M 0.13%
733,505
-321,118
-30% -$15.3M
EWBC icon
156
East-West Bancorp
EWBC
$18.5B
$38.6M 0.13%
732,497
+70,186
+11% +$3.95M
BRC icon
157
Brady Corp
BRC
$4.48B
$38.4M 0.13%
698,341
-52,108
-7% -$2.68M
LZB icon
158
La-Z-Boy
LZB
$1.64B
$38.3M 0.13%
1,240,242
-95,191
-7% -$2.93M
TCBI icon
159
Texas Capital Bancshares
TCBI
$4.38B
$38.2M 0.13%
647,735
-49,337
-7% -$2.98M
CRI icon
160
Carter's
CRI
$1.43B
$38.1M 0.13%
551,335
-41,640
-7% -$2.98M
BDC icon
161
Belden
BDC
$5.39B
$37.6M 0.13%
389,564
-32,729
-8% -$3.06M
PRMW
162
DELISTED
Primo Water Corporation
PRMW
$37.4M 0.12%
2,713,299
+265,057
+11% +$3.79M
ITGR icon
163
Integer Holdings
ITGR
$4.25B
$37.3M 0.12%
475,322
-135,469
-22% -$11.5M
INVX
164
Innovex International
INVX
$2.13B
$36.2M 0.12%
1,284,077
+28,202
+2% +$765K
ICE icon
165
Intercontinental Exchange
ICE
$85B
$36M 0.12%
327,604
-30,910
-9% -$3.54M
WK icon
166
Workiva
WK
$3.7B
$35.9M 0.12%
354,524
+15,351
+5% +$1.6M
CENTA icon
167
Central Garden & Pet Co Class A
CENTA
$2.43B
$35.6M 0.12%
1,110,996
+43,028
+4% +$1.37M
KLIC icon
168
Kulicke & Soffa
KLIC
$4.98B
$35.5M 0.12%
730,458
-53,305
-7% -$2.83M
ASR icon
169
Grupo Aeroportuario del Sureste
ASR
$8.24B
$35.2M 0.12%
143,415
-20,848
-13% -$5.64M
BOOT icon
170
Boot Barn
BOOT
$4.87B
$35.2M 0.12%
433,518
-44,236
-9% -$3.98M
HR icon
171
Healthcare Realty
HR
$6.58B
$35M 0.12%
2,290,464
+228,435
+11% +$4.05M
TT icon
172
Trane Technologies
TT
$105B
$34.4M 0.11%
169,604
-12,314
-7% -$2.47M
HI
173
DELISTED
Hillenbrand
HI
$34.1M 0.11%
806,766
-68,531
-8% -$3.26M
TMHC
174
DELISTED
Taylor Morrison
TMHC
$34.1M 0.11%
800,728
-61,231
-7% -$2.88M
KN icon
175
Knowles
KN
$3.33B
$33.9M 0.11%
2,288,036
-180,938
-7% -$2.97M
5 6
7
8 9

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William Blair Investment Management's Q3 2023 Portfolio in Review

As of Q3 2023, William Blair Investment Management held 430 positions worth $30.1B, down 3.5% from $31.2B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair Investment Management's Q3 2023 filing shows 35 new, 162 increased, 197 reduced and 32 closed positions. Its largest new stake was Super Micro Computer: 5,132,780 shares worth $141M. The largest sale was Denbury Inc., an estimated $179M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Industrials and Healthcare.

  • William Blair Investment Management's largest Q3 2023 buy was Super Micro Computer: 5,132,780 shares worth $141M.
  • William Blair Investment Management added most to NVIDIA in Q3 2023, an estimated $192M increase.
  • William Blair Investment Management's biggest Q3 2023 reduction was Martin Marietta Materials, cutting an estimated $141M.
  • William Blair Investment Management fully exited Denbury Inc. in Q3 2023, selling an estimated $179M.
  • William Blair Investment Management's ten largest holdings make up 22% of its $30.1B portfolio in Q3 2023.
  • William Blair Investment Management opened 35 new positions and closed 32 in Q3 2023.
  • William Blair Investment Management's portfolio value fell 3.5% quarter-over-quarter to $30.1B.

Based on William Blair Investment Management's 13F filing for Q3 2023, filed 9 Nov 2023.