We are live on ! Find out more
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
SNPS icon
126
Synopsys
SNPS
$79B
$49.8M 0.17%
128,806
+17,648
+16% +$6.31M
BPMC
127
DELISTED
Blueprint Medicines
BPMC
$48.7M 0.17%
1,082,449
+57,835
+6% +$2.61M
INMD icon
128
InMode
INMD
$875M
$48M 0.17%
1,503,439
+60,014
+4% +$2.06M
GPRE icon
129
Green Plains
GPRE
$1.06B
$46.6M 0.16%
1,504,958
+123,768
+9% +$4.04M
ITGR icon
130
Integer Holdings
ITGR
$4.25B
$46.5M 0.16%
599,411
+2,062
+0.3% +$151K
GVA icon
131
Granite Construction
GVA
$5.52B
$46.1M 0.16%
1,123,069
+3,806
+0.3% +$155K
MEI icon
132
Methode Electronics
MEI
$602M
$45.2M 0.16%
1,029,719
+4,939
+0.5% +$229K
PRAA icon
133
PRA Group
PRAA
$737M
$44.8M 0.16%
1,149,602
+6,623
+0.6% +$260K
MDRX
134
DELISTED
Veradigm Inc. Common Stock
MDRX
$44.7M 0.16%
3,423,731
+1,496,937
+78% +$24.2M
WDAY icon
135
Workday
WDAY
$43.3B
$44.6M 0.16%
216,002
-50,337
-19% -$9.16M
KRG icon
136
Kite Realty
KRG
$5.27B
$44.4M 0.15%
2,124,129
+4,205
+0.2% +$88.5K
META icon
137
Meta Platforms (Facebook)
META
$1.47T
$44.1M 0.15%
208,014
-7,396
-3% -$1.26M
LESL icon
138
Leslie's
LESL
$12.4M
$44.1M 0.15%
200,132
-299,825
-60% -$77.9M
BLMN icon
139
Bloomin' Brands
BLMN
$975M
$43.8M 0.15%
1,709,482
+4,909
+0.3% +$122K
TMHC
140
DELISTED
Taylor Morrison
TMHC
$43.8M 0.15%
1,144,185
+4,410
+0.4% +$155K
PGTI
141
DELISTED
PGT, Inc.
PGTI
$43.6M 0.15%
1,736,779
+206,866
+14% +$4.39M
WTFC icon
142
Wintrust Financial
WTFC
$11B
$41.9M 0.15%
574,256
+62,493
+12% +$5.34M
LNTH icon
143
Lantheus
LNTH
$6.57B
$41.8M 0.15%
506,247
-81,496
-14% -$5.26M
TPH
144
DELISTED
Tri Pointe Homes
TPH
$41.7M 0.15%
1,648,420
+7,278
+0.4% +$165K
ITUB icon
145
Itaú Unibanco
ITUB
$81.6B
$41.7M 0.15%
9,693,021
-4,985,670
-34% -$21.1M
PRGS icon
146
Progress Software
PRGS
$1.79B
$41.5M 0.14%
722,256
-145,035
-17% -$8.08M
KN icon
147
Knowles
KN
$3.33B
$41.2M 0.14%
2,423,238
+12,230
+0.5% +$213K
SHOO icon
148
Steven Madden
SHOO
$3.49B
$41M 0.14%
1,138,750
+3,992
+0.4% +$138K
HI
149
DELISTED
Hillenbrand
HI
$40.9M 0.14%
859,795
+51,558
+6% +$2.37M
KLIC icon
150
Kulicke & Soffa
KLIC
$4.98B
$40.5M 0.14%
768,952
+3,074
+0.4% +$160K
4 5
6
7 8

Similar funds

BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
GAM
Gotham Asset Management New York $32.7B AUM 27.65% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return
Public Sector Pension Investment Board (PSP Investments)
Public Sector Pension Investment Board (PSP Investments) Montreal, Quebec, Canada $32.1B AUM 31.84% 1-Year Est. Return
VIA
Vanguard Investments Australia Victoria, Australia $34.6B AUM
Chevy Chase Trust
Chevy Chase Trust Bethesda, Maryland $34.7B AUM 29.45% 1-Year Est. Return
Treasurer of the State of North Carolina
Treasurer of the State of North Carolina Raleigh, North Carolina $31.8B AUM 28.93% 1-Year Est. Return

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.