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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
+13.65%
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
$25.7B
AUM Growth
+$1.1B
Cap. Flow
-$1.58B
Cap. Flow %
-6.14%
Top 10 Hldgs %
18.53%
Holding
367
New
26
Increased
146
Reduced
166
Closed
24

Top Buys

Rank Stock Value
1
AXON
Axon Enterprise
AXON
+$151M
2
RAMP icon
LiveRamp
RAMP
+$124M
3
GWRE icon
Guidewire Software
GWRE
+$115M
4
SE icon
Sea Limited
SE
+$102M
5
BLDR icon
Builders FirstSource
BLDR
+$89.9M

Top Sells

Rank Stock Value
1
NTES icon
NetEase
NTES
+$506M
2
CPRT icon
Copart
CPRT
+$136M
3
TSM icon
TSMC
TSM
+$125M
4
WEX icon
WEX
WEX
+$124M
5
BN icon
Brookfield
BN
+$123M

Sector Composition

Rank Sector Weight
1 Technology 26.05%
2 Healthcare 18.61%
3 Consumer Discretionary 13.78%
4 Industrials 13.27%
5 Financials 7.61%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LYV icon
51
Live Nation Entertainment
LYV
$43.2B
$178M 0.69%
3,308,949
-1,030,945
-24% -$53.2M
AZTA icon
52
Azenta
AZTA
$1.47B
$178M 0.69%
3,848,755
+213,701
+6% +$10.4M
UNH icon
53
UnitedHealth
UNH
$364B
$178M 0.69%
569,338
-33,451
-6% -$10.3M
HELE icon
54
Helen of Troy
HELE
$696M
$176M 0.69%
910,442
+253,599
+39% +$50.4M
FSV icon
55
FirstService
FSV
$6.23B
$176M 0.69%
1,335,592
-50,856
-4% -$6M
EYE icon
56
National Vision
EYE
$1.56B
$176M 0.69%
4,604,953
-18,864
-0.4% -$656K
TEAM icon
57
Atlassian
TEAM
$39.4B
$175M 0.68%
961,089
-8,884
-0.9% -$1.58M
HALO icon
58
Halozyme
HALO
$11.5B
$171M 0.67%
6,520,526
-58,086
-0.9% -$1.62M
TRU icon
59
TransUnion
TRU
$15.2B
$166M 0.65%
1,975,946
-32,259
-2% -$2.79M
AVLR
60
DELISTED
Avalara, Inc.
AVLR
$166M 0.65%
1,301,019
-152,983
-11% -$19.4M
ALRM icon
61
Alarm.com
ALRM
$2.72B
$164M 0.64%
2,966,558
+728,403
+33% +$45M
ABMD
62
DELISTED
Abiomed Inc
ABMD
$157M 0.61%
568,210
-7,932
-1% -$2.29M
AXON
63
Axon Enterprise
AXON
$48.7B
$157M 0.61%
+1,734,820
New +$151M
CCJ icon
64
Cameco
CCJ
$43.1B
$156M 0.61%
15,430,474
+468,567
+3% +$5.07M
NKE icon
65
Nike
NKE
$60.1B
$153M 0.6%
1,218,000
-16,870
-1% -$1.81M
ARES icon
66
Ares Management
ARES
$32.1B
$151M 0.59%
3,736,791
+754,951
+25% +$30.1M
CRM icon
67
Salesforce
CRM
$158B
$149M 0.58%
593,648
+106,850
+22% +$23.4M
VRNS icon
68
Varonis Systems
VRNS
$4.82B
$148M 0.58%
3,848,628
-35,550
-0.9% -$1.33M
VIRT icon
69
Virtu Financial
VIRT
$5.04B
$143M 0.56%
6,221,067
-513,462
-8% -$12.9M
ZD icon
70
Ziff Davis
ZD
$1.88B
$142M 0.55%
2,361,019
-204,881
-8% -$11.6M
GWRE icon
71
Guidewire Software
GWRE
$14.4B
$139M 0.54%
1,336,916
+1,027,156
+332% +$115M
ULTA icon
72
Ulta Beauty
ULTA
$22.9B
$139M 0.54%
620,817
-30,554
-5% -$6.57M
MDB icon
73
MongoDB
MDB
$35.2B
$138M 0.54%
597,060
-9,751
-2% -$2.11M
RAMP icon
74
LiveRamp
RAMP
$2.3B
$137M 0.53%
2,641,452
+2,475,097
+1,488% +$124M
FCFS icon
75
FirstCash
FCFS
$9.28B
$132M 0.51%
2,306,092
+158,735
+7% +$9.7M
1 2
3
4 5

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William Blair Investment Management's Q3 2020 Portfolio in Review

As of Q3 2020, William Blair Investment Management held 367 positions worth $25.7B, up 4.5% from $24.6B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management withdrew a net $1.58B in Q3 2020, closing 24 positions and reducing 166 holdings. Its most notable exit was Planet Fitness, an estimated $114M position sold in full.

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

Against the trend, William Blair Investment Management opened a new position in Axon Enterprise worth $157M.

  • William Blair Investment Management's largest Q3 2020 buy was Axon Enterprise: 1,734,820 shares worth $157M.
  • William Blair Investment Management added most to LiveRamp in Q3 2020, an estimated $124M increase.
  • William Blair Investment Management's biggest Q3 2020 reduction was NetEase, cutting an estimated $506M.
  • William Blair Investment Management fully exited Planet Fitness in Q3 2020, selling an estimated $114M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $25.7B portfolio in Q3 2020.
  • William Blair Investment Management opened 26 new positions and closed 24 in Q3 2020.
  • William Blair Investment Management's portfolio value rose 4.5% quarter-over-quarter to $25.7B.

Based on William Blair Investment Management's 13F filing for Q3 2020, filed 6 Nov 2020.