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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
+11.26%
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
$28.7B
AUM Growth
+$2.56B
Cap. Flow
+$530M
Cap. Flow %
1.85%
Top 10 Hldgs %
19.55%
Holding
425
New
24
Increased
254
Reduced
112
Closed
32

Top Buys

Rank Stock Value
1
RACE icon
Ferrari
RACE
+$191M
2
TSM icon
TSMC
TSM
+$128M
3
KOS icon
Kosmos Energy
KOS
+$111M
4
FIVE icon
Five Below
FIVE
+$111M
5
AMD icon
Advanced Micro Devices
AMD
+$86.5M

Top Sells

Rank Stock Value
1
HALO icon
Halozyme
HALO
+$211M
2
SYK icon
Stryker
SYK
+$153M
3
WH icon
Wyndham Hotels & Resorts
WH
+$113M
4
FTI icon
TechnipFMC
FTI
+$92.8M
5
AZTA icon
Azenta
AZTA
+$78.7M

Sector Composition

Rank Sector Weight
1 Technology 25.27%
2 Industrials 16.92%
3 Consumer Discretionary 15.22%
4 Healthcare 14.65%
5 Financials 9.04%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CCK icon
26
Crown Holdings
CCK
$13.1B
$237M 0.83%
2,865,301
+33,829
+1% +$2.86M
MZTI
27
The Marzetti Company
MZTI
$3.15B
$236M 0.82%
1,162,905
+414,040
+55% +$80.5M
CPRT icon
28
Copart
CPRT
$27.2B
$235M 0.82%
6,235,954
+953,128
+18% +$32.4M
ZTS icon
29
Zoetis
ZTS
$31.1B
$233M 0.81%
1,399,218
+37,619
+3% +$6.17M
GTLS
30
DELISTED
Chart Industries
GTLS
$224M 0.78%
1,782,724
+64,280
+4% +$8.27M
NKE icon
31
Nike
NKE
$61.3B
$218M 0.76%
1,778,475
+49,325
+3% +$6.06M
CRM icon
32
Salesforce
CRM
$162B
$209M 0.73%
1,047,620
+11,322
+1% +$1.91M
LULU icon
33
lululemon athletica
LULU
$14.3B
$207M 0.72%
567,757
-159,258
-22% -$49.9M
NATI
34
DELISTED
National Instruments Corp
NATI
$204M 0.71%
3,900,608
-99,906
-2% -$5.01M
FTI icon
35
TechnipFMC
FTI
$29.5B
$204M 0.71%
14,971,613
-6,850,726
-31% -$92.8M
RACE icon
36
Ferrari
RACE
$72.1B
$203M 0.71%
+749,761
New +$191M
DT icon
37
Dynatrace
DT
$14.4B
$198M 0.69%
4,680,207
+1,648
+0% +$66.7K
ACN icon
38
Accenture
ACN
$110B
$196M 0.68%
685,628
+27,448
+4% +$7.48M
INSP icon
39
Inspire Medical Systems
INSP
$1.71B
$196M 0.68%
836,690
+3,267
+0.4% +$826K
AMD icon
40
Advanced Micro Devices
AMD
$774B
$188M 0.66%
1,919,603
+1,063,506
+124% +$86.5M
ACHC icon
41
Acadia Healthcare
ACHC
$2.9B
$184M 0.64%
2,544,282
-132,788
-5% -$10.4M
POOL icon
42
Pool Corp
POOL
$7.32B
$184M 0.64%
536,611
-41,773
-7% -$14.8M
HEI.A icon
43
HEICO Corp Class A
HEI.A
$37B
$180M 0.63%
1,326,356
+368,077
+38% +$48.8M
COST icon
44
Costco
COST
$419B
$180M 0.63%
361,503
-123,661
-25% -$60.7M
DEN
45
DELISTED
Denbury Inc.
DEN
$180M 0.63%
2,049,293
+515,077
+34% +$43.3M
HDB icon
46
HDFC Bank
HDB
$120B
$179M 0.62%
5,362,642
-24,676
-0.5% -$825K
INTU icon
47
Intuit
INTU
$92B
$176M 0.61%
394,646
+13,419
+4% +$5.51M
LYV icon
48
Live Nation Entertainment
LYV
$42.7B
$175M 0.61%
2,498,163
+51,063
+2% +$3.74M
TD icon
49
Toronto Dominion Bank
TD
$201B
$174M 0.61%
2,901,009
-828,187
-22% -$53.5M
CSGP icon
50
CoStar Group
CSGP
$12.6B
$172M 0.6%
2,495,388
-613,118
-20% -$45.2M
1
2
3 4 5

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William Blair Investment Management's Q1 2023 Portfolio in Review

As of Q1 2023, William Blair Investment Management held 425 positions worth $28.7B, up 9.8% from $26.1B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

William Blair Investment Management's Q1 2023 filing shows 24 new, 254 increased, 112 reduced and 32 closed positions. Its largest new stake was Ferrari: 749,761 shares worth $203M. The largest sale was Halozyme, an estimated $211M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 23% a quarter earlier, followed by Industrials and Consumer Discretionary.

  • William Blair Investment Management's largest Q1 2023 buy was Ferrari: 749,761 shares worth $203M.
  • William Blair Investment Management added most to TSMC in Q1 2023, an estimated $128M increase.
  • William Blair Investment Management's biggest Q1 2023 reduction was Wyndham Hotels & Resorts, cutting an estimated $113M.
  • William Blair Investment Management fully exited Halozyme in Q1 2023, selling an estimated $211M.
  • William Blair Investment Management's ten largest holdings make up 20% of its $28.7B portfolio in Q1 2023.
  • William Blair Investment Management opened 24 new positions and closed 32 in Q1 2023.
  • William Blair Investment Management's portfolio value rose 9.8% quarter-over-quarter to $28.7B.

Based on William Blair Investment Management's 13F filing for Q1 2023, filed 12 May 2023.