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
+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
COST icon
101
Costco
COST
$421B
$81.3M 0.32%
229,010
+93,807
+69% +$31.5M
ACN icon
102
Accenture
ACN
$110B
$79.8M 0.31%
352,953
+1,805
+0.5% +$413K
INSM icon
103
Insmed
INSM
$28.9B
$76.7M 0.3%
2,386,996
+1,567,605
+191% +$45.1M
BAP icon
104
Credicorp
BAP
$29.6B
$72.7M 0.28%
586,241
+189,916
+48% +$24.4M
APTV icon
105
Aptiv
APTV
$10.1B
$72.2M 0.28%
787,835
-77,305
-9% -$6.49M
ATVI
106
DELISTED
Activision Blizzard
ATVI
$71.3M 0.28%
880,756
-5,366
-0.6% -$435K
FTV icon
107
Fortive
FTV
$18.6B
$71M 0.28%
1,478,245
-33,365
-2% -$1.52M
SYK icon
108
Stryker
SYK
$133B
$70.5M 0.27%
338,269
-39,837
-11% -$7.74M
ABT icon
109
Abbott
ABT
$192B
$68.5M 0.27%
629,819
-26,478
-4% -$2.69M
WIX icon
110
WIX.com
WIX
$2.88B
$64.5M 0.25%
253,041
-14,393
-5% -$3.97M
INTU icon
111
Intuit
INTU
$91.6B
$61.8M 0.24%
189,595
+9,941
+6% +$3.11M
SBUX icon
112
Starbucks
SBUX
$124B
$60.3M 0.23%
701,391
-116,405
-14% -$9.28M
TMO icon
113
Thermo Fisher Scientific
TMO
$223B
$59.8M 0.23%
135,496
-15,931
-11% -$6.58M
ROG icon
114
Rogers Corp
ROG
$2.48B
$59.7M 0.23%
609,017
-253,999
-29% -$29.9M
MBB icon
115
iShares MBS ETF
MBB
$39B
$58.4M 0.23%
529,220
-50,780
-9% -$5.62M
EFX icon
116
Equifax
EFX
$21.2B
$57.5M 0.22%
366,165
-7,161
-2% -$1.17M
UNP icon
117
Union Pacific
UNP
$174B
$57.2M 0.22%
290,798
-35,016
-11% -$6.51M
CYBR
118
DELISTED
CyberArk
CYBR
$55.1M 0.21%
532,646
-27,483
-5% -$2.96M
ROP icon
119
Roper Technologies
ROP
$39.1B
$53.3M 0.21%
134,936
-16,252
-11% -$6.76M
ICE icon
120
Intercontinental Exchange
ICE
$85B
$51.7M 0.2%
516,674
-60,947
-11% -$6.01M
BLK icon
121
Blackrock
BLK
$180B
$51.3M 0.2%
91,045
-10,811
-11% -$6.17M
LRCX icon
122
Lam Research
LRCX
$408B
$51M 0.2%
1,535,840
-27,550
-2% -$949K
BOOT icon
123
Boot Barn
BOOT
$4.87B
$50.8M 0.2%
1,806,504
+56,843
+3% +$1.38M
IDXX icon
124
Idexx Laboratories
IDXX
$45B
$50.7M 0.2%
128,984
-15,201
-11% -$5.62M
BALL icon
125
Ball Corp
BALL
$16.4B
$50M 0.19%
601,891
-33,637
-5% -$2.59M
3 4
5
6 7

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 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.