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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
WNS
301
DELISTED
WNS Holdings
WNS
$17.5M 0.05%
276,236
+46,943
+20% +$2.87M
ARCO icon
302
Arcos Dorados Holdings
ARCO
$1.66B
$17.3M 0.05%
1,361,952
+249,598
+22% +$2.67M
KRNT icon
303
Kornit Digital
KRNT
$817M
$17.2M 0.05%
895,776
+19,538
+2% +$339K
AUDC icon
304
AudioCodes
AUDC
$257M
$16.9M 0.05%
1,397,162
-32,025
-2% -$328K
PLD icon
305
Prologis
PLD
$134B
$16.8M 0.05%
126,342
+3,047
+2% +$346K
AVTR icon
306
Avantor
AVTR
$9.42B
$16.5M 0.05%
724,747
-75,734
-9% -$1.55M
PAX icon
307
Patria Investments
PAX
$1.79B
$15.7M 0.05%
1,012,875
-37,162
-4% -$527K
ASR icon
308
Grupo Aeroportuario del Sureste
ASR
$8.24B
$15M 0.04%
51,056
-92,359
-64% -$21.8M
CIGI icon
309
Colliers International
CIGI
$5.15B
$14.6M 0.04%
115,136
-37,573
-25% -$3.86M
VINP icon
310
Vinci Compass Investments Ltd
VINP
$626M
$14.2M 0.04%
1,298,743
-40,384
-3% -$416K
BAP icon
311
Credicorp
BAP
$29.6B
$13.8M 0.04%
92,025
-284,584
-76% -$36.9M
LGND icon
312
Ligand Pharmaceuticals
LGND
$5.85B
$13.4M 0.04%
187,342
+27,549
+17% +$1.63M
SITM icon
313
SiTime
SITM
$20.5B
$13.3M 0.04%
108,989
+39,504
+57% +$4.47M
GSHD icon
314
Goosehead Insurance
GSHD
$2.33B
$13.3M 0.04%
174,811
-249,108
-59% -$18M
LOCO icon
315
El Pollo Loco
LOCO
$463M
$12.5M 0.04%
1,417,014
-28,409
-2% -$244K
RUSHA icon
316
Rush Enterprises Class A
RUSHA
$9.41B
$11.8M 0.03%
+234,237
New +$9.45M
MODV
317
DELISTED
ModivCare
MODV
$11.3M 0.03%
257,557
-5,998
-2% -$237K
VTMX icon
318
Vesta Real Estate
VTMX
$3.21B
$11.3M 0.03%
285,800
+88,080
+45% +$3.08M
IWO icon
319
iShares Russell 2000 Growth ETF
IWO
$15B
$10.8M 0.03%
42,745
+13,754
+47% +$3.1M
ABT icon
320
Abbott
ABT
$192B
$10.6M 0.03%
95,951
-2,000
-2% -$200K
KO icon
321
Coca-Cola
KO
$373B
$10.4M 0.03%
176,559
-13,774
-7% -$782K
EAF icon
322
GrafTech
EAF
$201M
$9.85M 0.03%
449,838
-12,774
-3% -$361K
DBI icon
323
Designer Brands
DBI
$311M
$8.89M 0.03%
1,004,296
-1,666,158
-62% -$17.5M
ERII icon
324
Energy Recovery
ERII
$397M
$8.82M 0.03%
468,024
-650,296
-58% -$12.1M
WDAY icon
325
Workday
WDAY
$43.3B
$7.61M 0.02%
27,577
-158,771
-85% -$37.8M
11 12
13
14 15

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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.