We are live on ! Find out more
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
+15.93%
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
$34.4B
AUM Growth
+$4.27B
Cap. Flow
+$63.7M
Cap. Flow %
0.19%
Top 10 Hldgs %
22.06%
Holding
433
New
35
Increased
127
Reduced
244
Closed
27

Top Buys

Rank Stock Value
1
PDD icon
Pinduoduo
PDD
+$279M
2
CRH icon
CRH
CRH
+$151M
3
CWAN
Clearwater Analytics
CWAN
+$143M
4
EXLS icon
EXL Service
EXLS
+$102M
5
A icon
Agilent Technologies
A
+$76.4M

Top Sells

Rank Stock Value
1
PFGC icon
Performance Food Group
PFGC
+$156M
2
PXD
Pioneer Natural Resource Co.
PXD
+$101M
3
CP icon
Canadian Pacific Kansas City
CP
+$97.2M
4
WOLF icon
Wolfspeed
WOLF
+$86.6M
5
AXON
Axon Enterprise
AXON
+$79.8M

Sector Composition

Rank Sector Weight
1 Technology 27.13%
2 Healthcare 15.5%
3 Consumer Discretionary 15.19%
4 Industrials 14.17%
5 Financials 9.11%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CENTA icon
176
Central Garden & Pet Co Class A
CENTA
$2.44B
$38.4M 0.11%
1,091,318
-19,678
-2% -$631K
VRNT
177
DELISTED
Verint Systems
VRNT
$38.4M 0.11%
1,420,071
+384,114
+37% +$8.91M
VITL icon
178
Vital Farms
VITL
$491M
$38.1M 0.11%
2,425,673
+363,122
+18% +$4.59M
IDXX icon
179
Idexx Laboratories
IDXX
$45B
$37.9M 0.11%
68,329
+1,194
+2% +$561K
HI
180
DELISTED
Hillenbrand
HI
$37.9M 0.11%
792,519
-14,247
-2% -$584K
SHOO icon
181
Steven Madden
SHOO
$3.49B
$37.9M 0.11%
902,713
-19,314
-2% -$701K
SMP icon
182
Standard Motor Products
SMP
$881M
$37.5M 0.11%
941,357
-18,225
-2% -$650K
STAG icon
183
STAG Industrial
STAG
$7.12B
$37.3M 0.11%
949,692
-18,126
-2% -$643K
MMS icon
184
Maximus
MMS
$2.86B
$37.1M 0.11%
442,363
-8,513
-2% -$679K
ABM icon
185
ABM Industries
ABM
$2.84B
$37.1M 0.11%
827,083
-16,289
-2% -$688K
IPAR icon
186
Interparfums
IPAR
$3.75B
$36.7M 0.11%
254,909
+11,234
+5% +$1.47M
ESRT icon
187
Empire State Realty Trust
ESRT
$817M
$36.6M 0.11%
3,777,812
-72,387
-2% -$627K
TMCI icon
188
Treace Medical Concepts
TMCI
$310M
$36.6M 0.11%
2,868,034
+1,082,033
+61% +$10.9M
CBZ icon
189
CBIZ
CBZ
$2.96B
$36.5M 0.11%
583,202
-8,789
-1% -$496K
PRFT
190
DELISTED
Perficient Inc
PRFT
$36.5M 0.11%
554,317
-8,729
-2% -$537K
WGO icon
191
Winnebago Industries
WGO
$912M
$36.5M 0.11%
500,400
-9,611
-2% -$617K
VERX icon
192
Vertex
VERX
$1.99B
$36M 0.1%
1,335,066
-92,942
-7% -$2.38M
EBC icon
193
Eastern Bankshares
EBC
$5.33B
$35.8M 0.1%
2,519,117
-51,239
-2% -$640K
HR icon
194
Healthcare Realty
HR
$6.59B
$35.7M 0.1%
2,073,949
-216,515
-9% -$3.31M
SHC icon
195
Sotera Health
SHC
$5.39B
$35.6M 0.1%
2,111,997
-4,319
-0.2% -$61.2K
MTG icon
196
MGIC Investment
MTG
$6.3B
$35.5M 0.1%
1,837,965
-27,926
-1% -$494K
CTRE icon
197
CareTrust REIT
CTRE
$9.23B
$35.4M 0.1%
1,580,980
-23,864
-1% -$528K
MDRX
198
DELISTED
Veradigm Inc. Common Stock
MDRX
$35.3M 0.1%
3,368,359
-1,006,646
-23% -$12.3M
ONB icon
199
Old National Bancorp
ONB
$10.3B
$35.3M 0.1%
2,087,262
-50,095
-2% -$752K
WTFC icon
200
Wintrust Financial
WTFC
$10.9B
$35M 0.1%
377,587
-39,263
-9% -$3.25M
6 7
8
9 10

Similar funds

BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
GAM
Gotham Asset Management New York $32.7B AUM 27.65% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return
Public Sector Pension Investment Board (PSP Investments)
Public Sector Pension Investment Board (PSP Investments) Montreal, Quebec, Canada $32.1B AUM 31.84% 1-Year Est. Return
VIA
Vanguard Investments Australia Victoria, Australia $34.6B AUM
Chevy Chase Trust
Chevy Chase Trust Bethesda, Maryland $34.7B AUM 29.45% 1-Year Est. Return
Treasurer of the State of North Carolina
Treasurer of the State of North Carolina Raleigh, North Carolina $31.8B AUM 28.93% 1-Year Est. Return

William Blair Investment Management's Q4 2023 Portfolio in Review

As of Q4 2023, William Blair Investment Management held 433 positions worth $34.4B, up 14% from $30.1B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair Investment Management's Q4 2023 filing shows 35 new, 127 increased, 244 reduced and 27 closed positions. Its largest new stake was Pinduoduo: 2,300,793 shares worth $336M. The largest sale was Performance Food Group, an estimated $156M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, up from 26% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q4 2023 buy was Pinduoduo: 2,300,793 shares worth $336M.
  • William Blair Investment Management added most to CRH in Q4 2023, an estimated $151M increase.
  • William Blair Investment Management's biggest Q4 2023 reduction was Performance Food Group, cutting an estimated $156M.
  • William Blair Investment Management fully exited Pioneer Natural Resource Co. in Q4 2023, selling an estimated $101M.
  • William Blair Investment Management's ten largest holdings make up 22% of its $34.4B portfolio in Q4 2023.
  • William Blair Investment Management opened 35 new positions and closed 27 in Q4 2023.
  • William Blair Investment Management's portfolio value rose 14% quarter-over-quarter to $34.4B.

Based on William Blair Investment Management's 13F filing for Q4 2023, filed 9 Feb 2024.