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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
MEI icon
326
Methode Electronics
MEI
$606M
$6.4M 0.02%
281,725
-803,077
-74% -$18.8M
QCOM icon
327
Qualcomm
QCOM
$174B
$6.39M 0.02%
+44,156
New +$5.47M
HUM icon
328
Humana
HUM
$46.1B
$5.89M 0.02%
12,862
-1,177
-8% -$580K
ASML icon
329
ASML
ASML
$718B
$5.84M 0.02%
7,710
-231
-3% -$153K
PFGC icon
330
Performance Food Group
PFGC
$16.6B
$5.81M 0.02%
84,043
-2,539,334
-97% -$156M
WMG icon
331
Warner Music
WMG
$13.2B
$5.69M 0.02%
158,947
-978
-0.6% -$32.3K
NVO
332
Novo Nordisk
NVO
$201B
$5.4M 0.02%
52,238
-9,557
-15% -$945K
AZUL
333
DELISTED
Azul
AZUL
$5.07M 0.01%
+522,943
New +$4.75M
UEIC icon
334
Universal Electronics
UEIC
$73.1M
$4.99M 0.01%
531,264
-11,712
-2% -$95.7K
BWIN
335
Baldwin Insurance Group
BWIN
$2.93B
$4.97M 0.01%
+206,781
New +$4.39M
AZN icon
336
AstraZeneca
AZN
$245B
$4.9M 0.01%
36,377
-1,295
-3% -$168K
EL icon
337
Estee Lauder
EL
$31.8B
$3.06M 0.01%
20,905
-67
-0.3% -$8.89K
MDB icon
338
MongoDB
MDB
$36.8B
$2.99M 0.01%
7,311
-2,136
-23% -$810K
WMT icon
339
Walmart Inc
WMT
$915B
$2.66M 0.01%
50,667
+6,120
+14% +$324K
DEO icon
340
Diageo
DEO
$52.8B
$2.64M 0.01%
18,158
-865
-5% -$128K
SHOP icon
341
Shopify
SHOP
$198B
$2.5M 0.01%
32,069
-45,638
-59% -$2.91M
IWN icon
342
iShares Russell 2000 Value ETF
IWN
$14.7B
$2.28M 0.01%
+14,662
New +$2.03M
TJX icon
343
TJX Companies
TJX
$168B
$2.22M 0.01%
23,679
-1,737
-7% -$156K
FERG icon
344
Ferguson
FERG
$48B
$1.96M 0.01%
10,204
+6,982
+217% +$1.18M
NVR icon
345
NVR
NVR
$16.9B
$1.95M 0.01%
279
+25
+10% +$154K
TTE icon
346
TotalEnergies
TTE
$193B
$1.87M 0.01%
+27,765
New +$1.85M
RTO icon
347
Rentokil
RTO
$12.1B
$1.6M ﹤0.01%
55,963
-39,260
-41% -$1.15M
NEE icon
348
NextEra Energy
NEE
$180B
$1.07M ﹤0.01%
17,613
-17,384
-50% -$991K
APTV icon
349
Aptiv
APTV
$10.1B
$1.01M ﹤0.01%
11,312
+3,212
+40% +$277K
CNYA icon
350
iShares MSCI China A ETF
CNYA
$206M
$904K ﹤0.01%
34,997
-73,328
-68% -$1.98M
12 13
14
15 16

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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.