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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
HUN icon
376
Huntsman Corp
HUN
$1.78B
$414K ﹤0.01%
16,478
+1,539
+10% +$37.4K
TAP icon
377
Molson Coors Class B
TAP
$7.75B
$412K ﹤0.01%
+6,723
New +$404K
LKQ icon
378
LKQ Corp
LKQ
$6.25B
$411K ﹤0.01%
8,594
-154
-2% -$7.18K
ALLE icon
379
Allegion
ALLE
$14.1B
$380K ﹤0.01%
+2,999
New +$320K
AAP icon
380
Advance Auto Parts
AAP
$3.23B
$355K ﹤0.01%
5,812
-105
-2% -$5.75K
JBL icon
381
Jabil
JBL
$38.4B
$349K ﹤0.01%
2,739
-1,037
-27% -$132K
WHR icon
382
Whirlpool
WHR
$2.79B
$336K ﹤0.01%
2,759
-48
-2% -$5.59K
VTRS icon
383
Viatris
VTRS
$18.5B
$335K ﹤0.01%
30,910
-554
-2% -$5.3K
NVST icon
384
Envista
NVST
$4.61B
$325K ﹤0.01%
13,511
-245
-2% -$5.86K
CPT icon
385
Camden Property Trust
CPT
$10.9B
$287K ﹤0.01%
2,893
-49
-2% -$4.54K
SAP icon
386
SAP
SAP
$236B
$255K ﹤0.01%
+1,649
New +$238K
PSX icon
387
Phillips 66
PSX
$90B
$253K ﹤0.01%
1,900
-39
-2% -$4.66K
TOL icon
388
Toll Brothers
TOL
$13.9B
$252K ﹤0.01%
2,449
-1,001
-29% -$83.4K
EFA icon
389
iShares MSCI EAFE ETF
EFA
$80.2B
$243K ﹤0.01%
3,220
+2,649
+464% +$187K
IPGP icon
390
IPG Photonics
IPGP
$3.71B
$241K ﹤0.01%
2,222
-31
-1% -$3K
QRVO icon
391
Qorvo
QRVO
$8.67B
$237K ﹤0.01%
2,103
-28
-1% -$2.7K
COR icon
392
Cencora
COR
$60B
$225K ﹤0.01%
1,094
-23
-2% -$4.49K
WTW icon
393
Willis Towers Watson
WTW
$31.6B
$225K ﹤0.01%
+931
New +$215K
KKR icon
394
KKR & Co
KKR
$99.5B
$222K ﹤0.01%
2,684
-989
-27% -$67K
CTSH icon
395
Cognizant
CTSH
$26.2B
$219K ﹤0.01%
2,901
-67
-2% -$4.63K
FLEX icon
396
Flex
FLEX
$46B
$219K ﹤0.01%
+9,533
New +$191K
PPG icon
397
PPG Industries
PPG
$25.5B
$215K ﹤0.01%
+1,437
New +$194K
SLGN icon
398
Silgan Holdings
SLGN
$4.3B
$211K ﹤0.01%
+4,662
New +$196K
HIG icon
399
Hartford Financial Services
HIG
$37.7B
$210K ﹤0.01%
+2,616
New +$197K
QDEL icon
400
QuidelOrtho
QDEL
$1.02B
$209K ﹤0.01%
2,832
-39
-1% -$2.64K
14 15
16
17 18

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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.