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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
-2.74%
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
$30.1B
AUM Growth
-$1.09B
Cap. Flow
+$378M
Cap. Flow %
1.26%
Top 10 Hldgs %
21.93%
Holding
430
New
35
Increased
162
Reduced
197
Closed
32

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$192M
2
SMCI icon
Super Micro Computer
SMCI
+$143M
3
LSCC icon
Lattice Semiconductor
LSCC
+$129M
4
CG icon
Carlyle Group
CG
+$114M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$111M

Top Sells

Rank Stock Value
1
DEN
Denbury Inc.
DEN
+$179M
2
PLNT icon
Planet Fitness
PLNT
+$170M
3
MLM icon
Martin Marietta Materials
MLM
+$141M
4
BLDR icon
Builders FirstSource
BLDR
+$135M
5
CCJ icon
Cameco
CCJ
+$123M

Sector Composition

Rank Sector Weight
1 Technology 25.88%
2 Industrials 15.76%
3 Healthcare 15.67%
4 Consumer Discretionary 13.72%
5 Financials 8.88%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
META icon
126
Meta Platforms (Facebook)
META
$1.47T
$54M 0.18%
179,955
-4,245
-2% -$1.28M
GPRE icon
127
Green Plains
GPRE
$1.06B
$52.4M 0.17%
1,740,748
+123,244
+8% +$4.04M
COLD icon
128
Americold
COLD
$4.17B
$51.6M 0.17%
1,697,021
+164,286
+11% +$5.31M
ITUB icon
129
Itaú Unibanco
ITUB
$81.6B
$51.5M 0.17%
10,869,148
+576,196
+6% +$2.87M
LOPE icon
130
Grand Canyon Education
LOPE
$3.7B
$50.2M 0.17%
429,848
+59,089
+16% +$6.56M
PEB icon
131
Pebblebrook Hotel Trust
PEB
$2.04B
$49.7M 0.17%
3,656,930
+1,215,683
+50% +$17.4M
BURL icon
132
Burlington
BURL
$22.3B
$48.2M 0.16%
356,296
-23,750
-6% -$3.81M
BAP icon
133
Credicorp
BAP
$29.6B
$48.2M 0.16%
376,609
-428,690
-53% -$62.2M
ESTE
134
DELISTED
Earthstone Energy Inc. Class A Common Stock
ESTE
$47.6M 0.16%
2,352,170
-185,504
-7% -$3.23M
BERY
135
DELISTED
Berry Global Group, Inc.
BERY
$47.3M 0.16%
832,544
+81,535
+11% +$4.79M
OEC icon
136
Orion
OEC
$364M
$47.1M 0.16%
2,214,170
-122,844
-5% -$2.68M
ODFL icon
137
Old Dominion Freight Line
ODFL
$44.1B
$45.8M 0.15%
223,846
-5,064
-2% -$1.02M
PGTI
138
DELISTED
PGT, Inc.
PGTI
$45.5M 0.15%
1,638,975
-130,586
-7% -$3.6M
ONTO icon
139
Onto Innovation
ONTO
$20.6B
$45.2M 0.15%
354,553
+55,969
+19% +$6.65M
XPRO icon
140
Expro Ltd
XPRO
$2.07B
$44.6M 0.15%
1,921,664
-14,425
-0.7% -$325K
GXO icon
141
GXO Logistics
GXO
$5.52B
$44.3M 0.15%
754,935
+73,931
+11% +$4.62M
ELS icon
142
Equity Lifestyle Properties
ELS
$12.4B
$44.1M 0.15%
692,183
+68,365
+11% +$4.62M
INMD icon
143
InMode
INMD
$875M
$44M 0.15%
1,443,936
-18,460
-1% -$725K
FROG icon
144
JFrog
FROG
$10.4B
$44M 0.15%
1,733,639
+102,561
+6% +$2.85M
IDA icon
145
Idacorp
IDA
$8.21B
$43.7M 0.15%
466,661
+45,585
+11% +$4.5M
KRG icon
146
Kite Realty
KRG
$5.27B
$42.9M 0.14%
2,004,246
-159,605
-7% -$3.61M
ATKR icon
147
Atkore
ATKR
$3.17B
$42.4M 0.14%
283,946
+39,149
+16% +$5.91M
SIG icon
148
Signet Jewelers
SIG
$3.59B
$42M 0.14%
585,383
+39,316
+7% +$2.92M
TMO icon
149
Thermo Fisher Scientific
TMO
$223B
$41.8M 0.14%
82,558
-8,233
-9% -$4.39M
SM icon
150
SM Energy
SM
$7.71B
$40.9M 0.14%
1,032,446
-77,280
-7% -$2.93M
4 5
6
7 8

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William Blair Investment Management's Q3 2023 Portfolio in Review

As of Q3 2023, William Blair Investment Management held 430 positions worth $30.1B, down 3.5% from $31.2B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair Investment Management's Q3 2023 filing shows 35 new, 162 increased, 197 reduced and 32 closed positions. Its largest new stake was Super Micro Computer: 5,132,780 shares worth $141M. The largest sale was Denbury Inc., an estimated $179M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Industrials and Healthcare.

  • William Blair Investment Management's largest Q3 2023 buy was Super Micro Computer: 5,132,780 shares worth $141M.
  • William Blair Investment Management added most to NVIDIA in Q3 2023, an estimated $192M increase.
  • William Blair Investment Management's biggest Q3 2023 reduction was Martin Marietta Materials, cutting an estimated $141M.
  • William Blair Investment Management fully exited Denbury Inc. in Q3 2023, selling an estimated $179M.
  • William Blair Investment Management's ten largest holdings make up 22% of its $30.1B portfolio in Q3 2023.
  • William Blair Investment Management opened 35 new positions and closed 32 in Q3 2023.
  • William Blair Investment Management's portfolio value fell 3.5% quarter-over-quarter to $30.1B.

Based on William Blair Investment Management's 13F filing for Q3 2023, filed 9 Nov 2023.