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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
+3.6%
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
$38.1B
AUM Growth
-$567M
Cap. Flow
-$555M
Cap. Flow %
-1.46%
Top 10 Hldgs %
28.43%
Holding
458
New
48
Increased
125
Reduced
209
Closed
47

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$739M
2
EXAS
Exact Sciences
EXAS
+$213M
3
CFLT
Confluent
CFLT
+$188M
4
SN icon
SharkNinja
SN
+$179M
5
PLNT icon
Planet Fitness
PLNT
+$147M

Top Sells

Rank Stock Value
1
SMCI icon
Super Micro Computer
SMCI
+$228M
2
CRH icon
CRH
CRH
+$217M
3
LULU icon
lululemon athletica
LULU
+$210M
4
TW icon
Tradeweb Markets
TW
+$190M
5
LYV icon
Live Nation Entertainment
LYV
+$175M

Sector Composition

Rank Sector Weight
1 Technology 34.09%
2 Consumer Discretionary 14.21%
3 Healthcare 13.5%
4 Industrials 11.25%
5 Financials 8.95%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ITGR icon
276
Integer Holdings
ITGR
$4.25B
$23.9M 0.06%
206,530
-86,737
-30% -$10.1M
SPB icon
277
Spectrum Brands
SPB
$2B
$23.9M 0.06%
277,844
-117,045
-30% -$10.2M
GXO icon
278
GXO Logistics
GXO
$5.48B
$23.7M 0.06%
469,305
+2,784
+0.6% +$141K
OPLN
279
Openlane
OPLN
$4.27B
$23.7M 0.06%
1,428,454
-2,622
-0.2% -$45K
ADT icon
280
ADT
ADT
$5.36B
$23.5M 0.06%
3,097,296
+18,360
+0.6% +$127K
PGR icon
281
Progressive
PGR
$122B
$23.4M 0.06%
+112,719
New +$23.6M
ADTN icon
282
Adtran
ADTN
$671M
$23.3M 0.06%
4,437,187
-18,880
-0.4% -$96.2K
MIRM icon
283
Mirum Pharmaceuticals
MIRM
$6.08B
$23.2M 0.06%
677,939
+50,667
+8% +$1.33M
ONT
284
Onterris Inc
ONT
$566M
$23.1M 0.06%
518,345
-70,972
-12% -$3.19M
TMO icon
285
Thermo Fisher Scientific
TMO
$222B
$23M 0.06%
41,506
-1,231
-3% -$705K
AUB icon
286
Atlantic Union Bankshares
AUB
$6.03B
$22.5M 0.06%
684,814
-1,269
-0.2% -$41.4K
AVTR icon
287
Avantor
AVTR
$9.26B
$22.3M 0.06%
1,054,083
+6,351
+0.6% +$153K
WST icon
288
West Pharmaceutical
WST
$24.7B
$21.9M 0.06%
66,485
+5,492
+9% +$1.94M
ESTA icon
289
Establishment Labs
ESTA
$2.24B
$21.9M 0.06%
481,572
+60,848
+14% +$3.09M
GLDD
290
DELISTED
Great Lakes Dredge & Dock
GLDD
$21.5M 0.06%
2,444,361
-713
-0% -$6.06K
PRO
291
DELISTED
PROS Holdings
PRO
$21.3M 0.06%
745,004
+54,607
+8% +$1.73M
COCO icon
292
Vita Coco
COCO
$3.8B
$21.2M 0.06%
761,315
+56,416
+8% +$1.5M
USLM icon
293
United States Lime & Minerals
USLM
$3.41B
$21.1M 0.06%
+289,950
New +$19.3M
CGNT icon
294
Cognyte Software
CGNT
$676M
$21.1M 0.06%
2,757,966
-5,648
-0.2% -$42.2K
AGYS icon
295
Agilysys
AGYS
$2.96B
$21M 0.06%
+202,027
New +$18.1M
ARHS icon
296
Arhaus
ARHS
$1.37B
$21M 0.06%
+1,241,672
New +$20.1M
SIG icon
297
Signet Jewelers
SIG
$3.55B
$20.9M 0.05%
232,825
-281,374
-55% -$27.8M
PRAA icon
298
PRA Group
PRAA
$723M
$20.8M 0.05%
1,059,181
-1,912
-0.2% -$44K
CNDT icon
299
Conduent
CNDT
$240M
$20.8M 0.05%
6,380,324
-13,229
-0.2% -$45K
DSGX icon
300
Descartes Systems
DSGX
$6.61B
$20.6M 0.05%
+212,806
New +$20M
10 11
12
13 14

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William Blair Investment Management's Q2 2024 Portfolio in Review

As of Q2 2024, William Blair Investment Management held 458 positions worth $38.1B, down 1.5% from $38.7B the previous quarter. Its ten largest holdings account for 28% of the portfolio.

William Blair Investment Management's Q2 2024 filing shows 48 new, 125 increased, 209 reduced and 47 closed positions. Its largest new stake was Apple: 3,961,485 shares worth $834M. The largest sale was Super Micro Computer, an estimated $228M.

By sector, the portfolio is most concentrated in Technology at 34% of assets, up from 30% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • William Blair Investment Management's largest Q2 2024 buy was Apple: 3,961,485 shares worth $834M.
  • William Blair Investment Management added most to Uber in Q2 2024, an estimated $124M increase.
  • William Blair Investment Management's biggest Q2 2024 reduction was CRH, cutting an estimated $217M.
  • William Blair Investment Management fully exited Super Micro Computer in Q2 2024, selling an estimated $228M.
  • William Blair Investment Management's ten largest holdings make up 28% of its $38.1B portfolio in Q2 2024.
  • William Blair Investment Management opened 48 new positions and closed 47 in Q2 2024.
  • William Blair Investment Management's portfolio value fell 1.5% quarter-over-quarter to $38.1B.

Based on William Blair Investment Management's 13F filing for Q2 2024, filed 8 Aug 2024.