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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
JCI icon
351
Johnson Controls International
JCI
$92.6B
$874K ﹤0.01%
15,165
+3,076
+25% +$161K
DAR icon
352
Darling Ingredients
DAR
$10B
$694K ﹤0.01%
13,932
-11,797
-46% -$535K
RL icon
353
Ralph Lauren
RL
$23.6B
$559K ﹤0.01%
3,878
-66
-2% -$8.17K
CART icon
354
Maplebear
CART
$11.2B
$557K ﹤0.01%
+23,752
New +$597K
HASI icon
355
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.37B
$542K ﹤0.01%
19,654
-992,296
-98% -$21.6M
AXTA icon
356
Axalta
AXTA
$7.98B
$525K ﹤0.01%
15,462
-272
-2% -$8.15K
SNA icon
357
Snap-on
SNA
$21.1B
$525K ﹤0.01%
1,817
-34
-2% -$9.18K
AYI icon
358
Acuity Brands
AYI
$10.8B
$503K ﹤0.01%
2,455
-43
-2% -$7.77K
FLS icon
359
Flowserve
FLS
$10.3B
$498K ﹤0.01%
12,090
-216
-2% -$8.3K
INGR icon
360
Ingredion
INGR
$6.54B
$483K ﹤0.01%
4,451
-77
-2% -$7.73K
CHKP icon
361
Check Point Software Technologies
CHKP
$13.2B
$479K ﹤0.01%
3,132
-53
-2% -$7.49K
HST icon
362
Host Hotels & Resorts
HST
$15.6B
$474K ﹤0.01%
24,334
+12,292
+102% +$211K
TKR icon
363
Timken Company
TKR
$9.03B
$455K ﹤0.01%
5,683
-105
-2% -$7.72K
LH icon
364
Labcorp
LH
$26.2B
$441K ﹤0.01%
1,941
-32
-2% -$6.72K
AGCO icon
365
AGCO
AGCO
$7.11B
$440K ﹤0.01%
3,623
-62
-2% -$7.25K
IVZ icon
366
Invesco
IVZ
$13.9B
$432K ﹤0.01%
24,217
-438
-2% -$6.32K
ALK icon
367
Alaska Air
ALK
$5.29B
$431K ﹤0.01%
11,034
+2,108
+24% +$75.2K
KNX icon
368
Knight Transportation
KNX
$11.6B
$426K ﹤0.01%
7,384
-907
-11% -$47.5K
BWA icon
369
BorgWarner
BWA
$14B
$425K ﹤0.01%
+11,851
New +$423K
REG icon
370
Regency Centers
REG
$13.9B
$423K ﹤0.01%
+6,313
New +$390K
BC icon
371
Brunswick
BC
$5.21B
$423K ﹤0.01%
4,368
-114
-3% -$9.06K
DOX icon
372
Amdocs
DOX
$6.08B
$422K ﹤0.01%
+4,802
New +$400K
YUMC icon
373
Yum China
YUMC
$16.4B
$419K ﹤0.01%
9,850
-11,150
-53% -$519K
HPE icon
374
Hewlett Packard
HPE
$77.8B
$416K ﹤0.01%
24,472
-444
-2% -$7.24K
GOOG icon
375
Alphabet (Google) Class C
GOOG
$4.19T
$415K ﹤0.01%
2,944
-167
-5% -$22.7K
13 14
15
16 17

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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.