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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
TEAM icon
51
Atlassian
TEAM
$39.1B
$213M 0.67%
827,956
-36,063
-4% -$8.44M
ZNGA
52
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
$212M 0.67%
19,975,793
+310,452
+2% +$3.27M
VRNS icon
53
Varonis Systems
VRNS
$4.84B
$211M 0.66%
3,667,772
-72,386
-2% -$3.77M
ARES icon
54
Ares Management
ARES
$32.3B
$209M 0.66%
3,282,854
-424,544
-11% -$23.7M
AZPN
55
DELISTED
ASPEN TECHNOLOGY INC
AZPN
$209M 0.65%
1,516,682
-30,289
-2% -$4.17M
WAL icon
56
Western Alliance Bancorporation
WAL
$8.89B
$207M 0.65%
2,224,590
-135,281
-6% -$13.4M
CABO icon
57
Cable One
CABO
$192M
$205M 0.64%
107,373
-1,969
-2% -$3.54M
AVLR
58
DELISTED
Avalara, Inc.
AVLR
$204M 0.64%
1,261,946
-22,836
-2% -$3.18M
GLOB icon
59
Globant
GLOB
$1.68B
$201M 0.63%
918,219
+43,407
+5% +$9.54M
EYE icon
60
National Vision
EYE
$1.77B
$198M 0.62%
3,866,549
-60,260
-2% -$2.96M
ZEN
61
DELISTED
ZENDESK INC
ZEN
$197M 0.62%
1,363,110
-27,056
-2% -$3.82M
HDB icon
62
HDFC Bank
HDB
$120B
$194M 0.61%
5,313,300
+2,598
+0% +$95.2K
VIRT icon
63
Virtu Financial
VIRT
$4.86B
$194M 0.61%
7,022,489
-77,347
-1% -$2.3M
UNH icon
64
UnitedHealth
UNH
$365B
$190M 0.6%
474,003
-68,878
-13% -$27.5M
PEN icon
65
Penumbra
PEN
$12.9B
$189M 0.59%
690,700
-175,853
-20% -$48M
STEM icon
66
Stem
STEM
$52.8M
$189M 0.59%
262,037
-3,778
-1% -$2.06M
ENTG icon
67
Entegris
ENTG
$23B
$187M 0.59%
1,522,366
-18,645
-1% -$2.14M
RVLV icon
68
Revolve Group
RVLV
$1.69B
$183M 0.57%
2,654,967
+1,848,173
+229% +$99.3M
LOPE icon
69
Grand Canyon Education
LOPE
$3.76B
$181M 0.57%
2,012,454
-2,089,179
-51% -$206M
AMED
70
DELISTED
Amedisys
AMED
$180M 0.56%
734,573
-14,075
-2% -$3.69M
PEGA icon
71
Pegasystems
PEGA
$5.44B
$178M 0.56%
2,562,156
+599,390
+31% +$37.8M
ADBE icon
72
Adobe
ADBE
$105B
$178M 0.56%
304,281
+699
+0.2% +$360K
NATI
73
DELISTED
National Instruments Corp
NATI
$177M 0.56%
4,196,616
-73,692
-2% -$3.1M
FSV icon
74
FirstService
FSV
$6.3B
$176M 0.55%
1,027,856
-260,212
-20% -$42.7M
HELE icon
75
Helen of Troy
HELE
$682M
$176M 0.55%
770,358
-126,168
-14% -$27.7M
1 2
3
4 5

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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.