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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
+7.98%
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
$31.9B
AUM Growth
+$988M
Cap. Flow
-$703M
Cap. Flow %
-2.21%
Top 10 Hldgs %
16.59%
Holding
479
New
112
Increased
100
Reduced
249
Closed
14

Top Buys

Rank Stock Value
1
FOXF icon
Fox Factory Holding Corp
FOXF
+$242M
2
WH icon
Wyndham Hotels & Resorts
WH
+$228M
3
DEN
Denbury Inc.
DEN
+$153M
4
BLDR icon
Builders FirstSource
BLDR
+$134M
5
RVLV icon
Revolve Group
RVLV
+$99.3M

Top Sells

Rank Stock Value
1
LOPE icon
Grand Canyon Education
LOPE
+$206M
2
ETSY icon
Etsy
ETSY
+$195M
3
AAP icon
Advance Auto Parts
AAP
+$192M
4
BJ icon
BJs Wholesale Club
BJ
+$151M
5
RAMP icon
LiveRamp
RAMP
+$125M

Sector Composition

Rank Sector Weight
1 Technology 25.66%
2 Healthcare 20.52%
3 Industrials 14.68%
4 Consumer Discretionary 14.22%
5 Financials 6.61%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AMD icon
101
Advanced Micro Devices
AMD
$774B
$113M 0.35%
1,198,983
+136,657
+13% +$11M
FIS icon
102
Fidelity National Information Services
FIS
$22.1B
$112M 0.35%
790,351
-1,167
-0.1% -$173K
MASI
103
DELISTED
Masimo
MASI
$105M 0.33%
431,775
-6,508
-1% -$1.48M
ACN icon
104
Accenture
ACN
$110B
$104M 0.33%
354,024
+3,454
+1% +$989K
TXN icon
105
Texas Instruments
TXN
$257B
$102M 0.32%
531,975
-42,048
-7% -$7.88M
WIX icon
106
WIX.com
WIX
$2.79B
$101M 0.32%
348,189
+29,617
+9% +$8.31M
TAL icon
107
TAL Education Group
TAL
$6.75B
$96.8M 0.3%
3,838,733
-67,931
-2% -$3.04M
META icon
108
Meta Platforms (Facebook)
META
$1.53T
$96.7M 0.3%
278,216
+6,018
+2% +$1.93M
INTU icon
109
Intuit
INTU
$92B
$95.3M 0.3%
194,334
+2,165
+1% +$939K
TWST icon
110
Twist Bioscience
TWST
$7.72B
$94.1M 0.3%
706,416
+50,456
+8% +$5.87M
SYK icon
111
Stryker
SYK
$134B
$93.8M 0.29%
361,327
+2,714
+0.8% +$694K
LRCX icon
112
Lam Research
LRCX
$390B
$92.4M 0.29%
1,420,150
-80,330
-5% -$5.07M
BPMC
113
DELISTED
Blueprint Medicines
BPMC
$91.1M 0.29%
1,035,918
-23,353
-2% -$2.14M
QTWO icon
114
Q2 Holdings
QTWO
$3.95B
$87.9M 0.28%
856,786
-16,103
-2% -$1.61M
APTV icon
115
Aptiv
APTV
$10.3B
$87.3M 0.27%
554,965
-9,561
-2% -$1.4M
COST icon
116
Costco
COST
$419B
$86.4M 0.27%
218,488
+2,938
+1% +$1.11M
ATVI
117
DELISTED
Activision Blizzard
ATVI
$84.3M 0.26%
883,268
+174,854
+25% +$16.6M
SBUX icon
118
Starbucks
SBUX
$122B
$81.5M 0.26%
729,281
+9,344
+1% +$1.06M
ULTA icon
119
Ulta Beauty
ULTA
$23.3B
$81.4M 0.26%
235,556
-6,355
-3% -$2.08M
BAP icon
120
Credicorp
BAP
$30B
$80.7M 0.25%
665,996
+37,776
+6% +$4.94M
INMD icon
121
InMode
INMD
$870M
$80.4M 0.25%
1,699,380
+293,660
+21% +$12.5M
IDXX icon
122
Idexx Laboratories
IDXX
$46.2B
$77.8M 0.24%
123,182
+27,944
+29% +$15.4M
EFX icon
123
Equifax
EFX
$21.4B
$77.7M 0.24%
324,504
+20,466
+7% +$4.57M
CSGP icon
124
CoStar Group
CSGP
$12.6B
$73.4M 0.23%
885,896
-22,174
-2% -$1.92M
SKY icon
125
Champion Homes
SKY
$5.11B
$71.7M 0.22%
1,344,735
-43,336
-3% -$2.04M
3 4
5
6 7

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William Blair Investment Management's Q2 2021 Portfolio in Review

As of Q2 2021, William Blair Investment Management held 479 positions worth $31.9B, up 3.2% from $30.9B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management's Q2 2021 filing shows 112 new, 100 increased, 249 reduced and 14 closed positions. Its largest new stake was Fox Factory Holding Corp: 1,625,709 shares worth $253M. The largest sale was Grand Canyon Education, an estimated $206M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair Investment Management's largest Q2 2021 buy was Fox Factory Holding Corp: 1,625,709 shares worth $253M.
  • William Blair Investment Management added most to Denbury Inc. in Q2 2021, an estimated $153M increase.
  • William Blair Investment Management's biggest Q2 2021 reduction was Grand Canyon Education, cutting an estimated $206M.
  • William Blair Investment Management fully exited Proofpoint, Inc. in Q2 2021, selling an estimated $118M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $31.9B portfolio in Q2 2021.
  • William Blair Investment Management opened 112 new positions and closed 14 in Q2 2021.
  • William Blair Investment Management's portfolio value rose 3.2% quarter-over-quarter to $31.9B.

Based on William Blair Investment Management's 13F filing for Q2 2021, filed 12 Aug 2021.