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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
PRO
251
DELISTED
PROS Holdings
PRO
$23.5M 0.08%
677,830
-107,897
-14% -$3.73M
FRME icon
252
First Merchants
FRME
$2.72B
$23.5M 0.08%
843,375
-65,740
-7% -$1.97M
TMCI icon
253
Treace Medical Concepts
TMCI
$309M
$23.4M 0.08%
1,786,001
+811,777
+83% +$14.9M
ELME
254
Elme Communities
ELME
$144M
$23.3M 0.08%
1,705,649
-126,695
-7% -$1.96M
WSO icon
255
Watsco Inc
WSO
$12.8B
$23.1M 0.08%
61,286
-15,536
-20% -$5.62M
SHO icon
256
Sunstone Hotel Investors
SHO
$2.01B
$23.1M 0.08%
2,470,882
-163,771
-6% -$1.55M
EPC icon
257
Edgewell Personal Care
EPC
$1.32B
$23M 0.08%
622,711
-46,951
-7% -$1.81M
BANC icon
258
Banc of California
BANC
$3.1B
$22.9M 0.08%
1,849,625
-142,623
-7% -$1.82M
BCPC
259
Balchem Corp
BCPC
$5.73B
$22.8M 0.08%
183,916
+36,729
+25% +$4.88M
CNDT icon
260
Conduent
CNDT
$241M
$22.7M 0.08%
6,524,703
-516,634
-7% -$1.72M
HWC icon
261
Hancock Whitney
HWC
$6.34B
$22.6M 0.08%
610,998
-49,437
-7% -$2.02M
ADT icon
262
ADT
ADT
$5.34B
$22.5M 0.07%
3,741,873
+1,778,262
+91% +$11.1M
OPLN
263
Openlane
OPLN
$4.34B
$22.3M 0.07%
1,496,988
-110,858
-7% -$1.71M
SFM icon
264
Sprouts Farmers Market
SFM
$8.03B
$22.2M 0.07%
519,520
-38,893
-7% -$1.53M
AVNS
265
DELISTED
Avanos Medical
AVNS
$22.1M 0.07%
+1,094,675
New +$24.8M
SPB icon
266
Spectrum Brands
SPB
$2.03B
$21.9M 0.07%
279,498
-19,347
-6% -$1.53M
PLOW icon
267
Douglas Dynamics
PLOW
$981M
$21.8M 0.07%
721,639
+20,973
+3% +$642K
HASI icon
268
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.37B
$21.5M 0.07%
1,011,950
+97,933
+11% +$2.35M
CBRL icon
269
Cracker Barrel
CBRL
$1.31B
$21.2M 0.07%
315,922
-23,134
-7% -$1.94M
SBCF icon
270
Seacoast Banking Corp of Florida
SBCF
$3.44B
$21.1M 0.07%
962,952
-74,676
-7% -$1.75M
PRAA icon
271
PRA Group
PRAA
$737M
$20.9M 0.07%
1,086,299
-85,044
-7% -$1.79M
DCO icon
272
Ducommun
DCO
$3.04B
$20.8M 0.07%
479,006
+13,858
+3% +$629K
THR
273
DELISTED
Thermon Group Holdings
THR
$20.3M 0.07%
737,696
-33,545
-4% -$900K
AUB icon
274
Atlantic Union Bankshares
AUB
$6.06B
$20.2M 0.07%
701,670
-57,319
-8% -$1.7M
GLDD
275
DELISTED
Great Lakes Dredge & Dock
GLDD
$19.9M 0.07%
2,496,365
-190,059
-7% -$1.58M
9 10
11
12 13

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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.