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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $30.3B
1-Year Est. Return 33.75%
This Fund
S&P 500
This Quarter Est. Return
+3.6%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+788.31%
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

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
MLM icon
51
Martin Marietta Materials
MLM
$33.3B
$203M 0.53%
374,811
+3,598
+1% +$2.09M
NICE icon
52
Nice
NICE
$5.95B
$198M 0.52%
1,153,028
-211,533
-16% -$43.5M
DT icon
53
Dynatrace
DT
$14.4B
$198M 0.52%
4,427,723
-9,774
-0.2% -$450K
CCK icon
54
Crown Holdings
CCK
$13.1B
$197M 0.52%
2,650,883
-175,516
-6% -$14.2M
CFLT
55
DELISTED
Confluent
CFLT
$193M 0.51%
+6,549,385
New +$188M
CWAN
56
DELISTED
Clearwater Analytics
CWAN
$193M 0.51%
10,430,794
+66,528
+0.6% +$1.2M
FLYW icon
57
Flywire
FLYW
$2.13B
$192M 0.5%
11,731,790
+6,519,598
+125% +$123M
MZTI
58
The Marzetti Company
MZTI
$3.15B
$192M 0.5%
1,014,414
-329,425
-25% -$62.9M
SN icon
59
SharkNinja
SN
$26.4B
$190M 0.5%
+2,534,684
New +$179M
PODD icon
60
Insulet
PODD
$10B
$190M 0.5%
942,254
-10,014
-1% -$1.8M
CGNX icon
61
Cognex
CGNX
$10.6B
$188M 0.49%
4,018,539
+301,916
+8% +$13.3M
NEOG icon
62
Neogen
NEOG
$2.51B
$188M 0.49%
12,013,072
+4,717,696
+65% +$65.6M
LSCC icon
63
Lattice Semiconductor
LSCC
$17.9B
$183M 0.48%
3,163,064
+668,132
+27% +$46.1M
DOCS icon
64
Doximity
DOCS
$4.65B
$179M 0.47%
6,404,068
+873,682
+16% +$23M
POOL icon
65
Pool Corp
POOL
$7.32B
$177M 0.46%
576,652
-71,396
-11% -$25.9M
WAL icon
66
Western Alliance Bancorporation
WAL
$8.89B
$177M 0.46%
2,813,823
+20,876
+0.7% +$1.26M
WSC icon
67
WillScot Mobile Mini Holdings
WSC
$4.15B
$175M 0.46%
4,643,901
+2,355,445
+103% +$93.2M
GWRE icon
68
Guidewire Software
GWRE
$14.7B
$175M 0.46%
1,267,050
-300,603
-19% -$36.2M
MRCY icon
69
Mercury Systems
MRCY
$6.55B
$173M 0.45%
6,416,449
+36,923
+0.6% +$1.08M
BPMC
70
DELISTED
Blueprint Medicines
BPMC
$172M 0.45%
1,593,916
-114,132
-7% -$11.4M
PLNT icon
71
Planet Fitness
PLNT
$3.62B
$167M 0.44%
+2,269,026
New +$147M
LYV icon
72
Live Nation Entertainment
LYV
$42.7B
$167M 0.44%
1,778,948
-1,854,843
-51% -$175M
VIRT icon
73
Virtu Financial
VIRT
$4.86B
$167M 0.44%
7,416,619
-114,150
-2% -$2.54M
EXAS
74
DELISTED
Exact Sciences
EXAS
$164M 0.43%
+3,879,195
New +$213M
HDB icon
75
HDFC Bank
HDB
$120B
$161M 0.42%
5,005,834
+177,270
+4% +$5.19M

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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.