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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
+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
ELS icon
151
Equity Lifestyle Properties
ELS
$12.6B
$44.2M 0.13%
627,243
-64,940
-9% -$4.42M
AWI icon
152
Armstrong World Industries
AWI
$7.74B
$44M 0.13%
447,130
-9,981
-2% -$825K
ICE icon
153
Intercontinental Exchange
ICE
$85.3B
$42.9M 0.12%
333,693
+6,089
+2% +$690K
ABCB icon
154
Ameris Bancorp
ABCB
$5.98B
$42.2M 0.12%
796,402
-15,019
-2% -$643K
CALX icon
155
Calix
CALX
$2.53B
$42.2M 0.12%
966,631
+592,919
+159% +$23.7M
COLB icon
156
Columbia Banking Systems
COLB
$9.17B
$42.1M 0.12%
1,577,351
+72,211
+5% +$1.6M
TMHC
157
DELISTED
Taylor Morrison
TMHC
$42.1M 0.12%
788,319
-12,409
-2% -$555K
GXO icon
158
GXO Logistics
GXO
$5.54B
$41.8M 0.12%
683,945
-70,990
-9% -$3.98M
IDA icon
159
Idacorp
IDA
$8.17B
$41.5M 0.12%
422,282
-44,379
-10% -$4.3M
TCBI icon
160
Texas Capital Bancshares
TCBI
$4.39B
$41.1M 0.12%
635,550
-12,185
-2% -$702K
TPH
161
DELISTED
Tri Pointe Homes
TPH
$40.6M 0.12%
1,148,279
-18,177
-2% -$528K
ADSK icon
162
Autodesk
ADSK
$51.4B
$40.5M 0.12%
166,535
+17,143
+11% +$3.7M
ODFL icon
163
Old Dominion Freight Line
ODFL
$44.9B
$40.5M 0.12%
199,904
-23,942
-11% -$4.75M
CRI icon
164
Carter's
CRI
$1.43B
$40.4M 0.12%
539,547
-11,788
-2% -$818K
BRC icon
165
Brady Corp
BRC
$4.46B
$40.2M 0.12%
685,221
-13,120
-2% -$724K
KN icon
166
Knowles
KN
$3.3B
$40.2M 0.12%
2,244,672
-43,364
-2% -$674K
MTX icon
167
Minerals Technologies
MTX
$2.27B
$39.6M 0.12%
554,826
-10,539
-2% -$625K
KLIC icon
168
Kulicke & Soffa
KLIC
$5B
$39.2M 0.11%
716,696
-13,762
-2% -$668K
SM icon
169
SM Energy
SM
$7.67B
$39.1M 0.11%
1,010,713
-21,733
-2% -$838K
BAH icon
170
Booz Allen Hamilton
BAH
$9.31B
$38.9M 0.11%
304,045
+19,592
+7% +$2.44M
HUBG icon
171
HUB Group
HUBG
$2.57B
$38.8M 0.11%
844,214
-16,568
-2% -$651K
CALM icon
172
Cal-Maine
CALM
$3.9B
$38.7M 0.11%
673,639
-10,056
-1% -$497K
CODI icon
173
Compass Diversified
CODI
$928M
$38.7M 0.11%
1,721,825
-31,871
-2% -$624K
PNFP icon
174
Pinnacle Financial Partners Inc
PNFP
$16.2B
$38.6M 0.11%
442,667
-7,088
-2% -$514K
PRMW
175
DELISTED
Primo Water Corporation
PRMW
$38.5M 0.11%
2,560,023
-153,276
-6% -$2.19M
5 6
7
8 9

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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.