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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
+7.98%
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
$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
DLB icon
176
Dolby
DLB
$5.75B
$30.8M 0.1%
313,531
+2,261
+0.7% +$223K
LQD icon
177
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.6B
$30.6M 0.1%
227,930
-14,420
-6% -$1.9M
CDNA icon
178
CareDx
CDNA
$2.44B
$30.5M 0.1%
332,923
-13,443
-4% -$1.07M
AXGN icon
179
Axogen
AXGN
$2.61B
$30.4M 0.1%
1,408,175
-56,872
-4% -$1.15M
LPSN icon
180
LivePerson
LPSN
$33.6M
$30.1M 0.09%
31,783
+6,608
+26% +$5.57M
PAE
181
DELISTED
PAE Incorporated Class A Common Stock
PAE
$30M 0.09%
3,367,162
-135,994
-4% -$1.17M
MDB icon
182
MongoDB
MDB
$35.3B
$29.3M 0.09%
81,092
-2,422
-3% -$749K
ERII icon
183
Energy Recovery
ERII
$394M
$29.2M 0.09%
1,283,809
+210,147
+20% +$4.14M
PRO
184
DELISTED
PROS Holdings
PRO
$29.2M 0.09%
640,867
+250,189
+64% +$11.1M
SKIN icon
185
SkinHealth Systems
SKIN
$91.1M
$28.9M 0.09%
1,721,598
+592,535
+52% +$8.1M
HOMB icon
186
Home BancShares
HOMB
$6.22B
$28.9M 0.09%
1,171,068
-485,411
-29% -$13.1M
ALLE icon
187
Allegion
ALLE
$14.3B
$28.8M 0.09%
206,903
-2,003
-1% -$274K
BALL icon
188
Ball Corp
BALL
$16.6B
$28.5M 0.09%
351,798
-9,078
-3% -$786K
AAP icon
189
Advance Auto Parts
AAP
$3.19B
$28.3M 0.09%
137,992
-976,341
-88% -$192M
IAA
190
DELISTED
IAA, Inc. Common Stock
IAA
$28.1M 0.09%
514,350
-4,211
-0.8% -$242K
VMC icon
191
Vulcan Materials
VMC
$37.3B
$27.9M 0.09%
160,215
-7,745
-5% -$1.38M
WTFC icon
192
Wintrust Financial
WTFC
$10.9B
$26.4M 0.08%
348,418
+43,954
+14% +$3.43M
INFY icon
193
Infosys
INFY
$51B
$26.2M 0.08%
1,239,218
– –
ETSY icon
194
Etsy
ETSY
$7.29B
$26.2M 0.08%
127,272
-1,055,668
-89% -$195M
VEEV icon
195
Veeva Systems
VEEV
$38.4B
$26.1M 0.08%
83,845
+1,619
+2% +$451K
AORT icon
196
Artivion
AORT
$1.38B
$26M 0.08%
915,557
-36,977
-4% -$1.01M
WMG icon
197
Warner Music
WMG
$13.1B
$25.5M 0.08%
707,160
+77,071
+12% +$2.76M
AJG icon
198
Arthur J. Gallagher & Co
AJG
$65B
$25.3M 0.08%
180,462
-8,710
-5% -$1.23M
RSI icon
199
Rush Street Interactive
RSI
$2.91B
$25.1M 0.08%
2,048,452
+32,430
+2% +$436K
RAMP icon
200
LiveRamp
RAMP
$2.3B
$25.1M 0.08%
534,718
-2,591,051
-83% -$125M
6 7
8
9 10

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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.