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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
-14.67%
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
$20.5B
AUM Growth
-$4.55B
Cap. Flow
-$12.9M
Cap. Flow %
-0.06%
Top 10 Hldgs %
22.75%
Holding
396
New
40
Increased
177
Reduced
118
Closed
57

Top Buys

Rank Stock Value
1
TAL icon
TAL Education Group
TAL
+$224M
2
SEDG icon
SolarEdge
SEDG
+$152M
3
MRCY icon
Mercury Systems
MRCY
+$143M
4
MASI
Masimo
MASI
+$138M
5
BCO icon
Brink's
BCO
+$124M

Top Sells

Rank Stock Value
1
MTN icon
Vail Resorts
MTN
+$240M
2
TD icon
Toronto Dominion Bank
TD
+$237M
3
SABR icon
Sabre
SABR
+$207M
4
CHKP icon
Check Point Software Technologies
CHKP
+$173M
5
GWRE icon
Guidewire Software
GWRE
+$141M

Sector Composition

Rank Sector Weight
1 Technology 22.09%
2 Healthcare 16.18%
3 Consumer Discretionary 14.43%
4 Industrials 13.27%
5 Financials 9.12%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SBUX icon
126
Starbucks
SBUX
$124B
$41.3M 0.2%
627,682
+25,978
+4% +$2.1M
IDXX icon
127
Idexx Laboratories
IDXX
$45B
$40.4M 0.2%
166,900
+51,778
+45% +$13.5M
VEEV icon
128
Veeva Systems
VEEV
$39.2B
$37.5M 0.18%
239,598
-133,587
-36% -$19.6M
EDU icon
129
New Oriental
EDU
$8.49B
$36.5M 0.18%
337,197
+6,048
+2% +$776K
A icon
130
Agilent Technologies
A
$41.9B
$36.2M 0.18%
505,054
+107,529
+27% +$8.64M
COST icon
131
Costco
COST
$421B
$35.5M 0.17%
124,615
-1,536
-1% -$466K
SBAC icon
132
SBA Communications
SBAC
$19.4B
$35.4M 0.17%
131,290
+35,667
+37% +$9.41M
LHCG
133
DELISTED
LHC Group LLC
LHCG
$35.2M 0.17%
250,974
+30,243
+14% +$4.21M
ANET icon
134
Arista Networks
ANET
$265B
$35M 0.17%
2,761,264
+389,168
+16% +$5.05M
TTWO icon
135
Take-Two Interactive
TTWO
$45.4B
$34.8M 0.17%
292,982
+54,916
+23% +$6.49M
ISRG icon
136
Intuitive Surgical
ISRG
$142B
$34.5M 0.17%
209,265
+684
+0.3% +$125K
EFX icon
137
Equifax
EFX
$21.2B
$33.8M 0.16%
283,182
+513
+0.2% +$74.6K
TRHC
138
DELISTED
Tabula Rasa HealthCare, Inc. Common Stock
TRHC
$33M 0.16%
631,336
+105,212
+20% +$5.7M
COR
139
DELISTED
Coresite Realty Corporation
COR
$32.7M 0.16%
282,167
+88,067
+45% +$9.8M
DLB icon
140
Dolby
DLB
$5.75B
$32.6M 0.16%
601,898
+62,687
+12% +$4.11M
LIN icon
141
Linde
LIN
$221B
$32.1M 0.16%
185,548
+5,835
+3% +$1.15M
HNGR
142
DELISTED
Hanger Inc.
HNGR
$30.4M 0.15%
1,954,366
+653,136
+50% +$14.8M
MMSI icon
143
Merit Medical Systems
MMSI
$5.45B
$29.8M 0.15%
954,873
+101,946
+12% +$3.63M
COLD icon
144
Americold
COLD
$4.17B
$29.6M 0.14%
870,964
+351,953
+68% +$11.8M
APTV icon
145
Aptiv
APTV
$10.1B
$29.4M 0.14%
597,976
+13,517
+2% +$1.06M
LRCX icon
146
Lam Research
LRCX
$408B
$28.9M 0.14%
1,202,120
+48,300
+4% +$1.39M
WIX icon
147
WIX.com
WIX
$2.88B
$28.6M 0.14%
283,822
-104,095
-27% -$13.6M
ADSK icon
148
Autodesk
ADSK
$52.7B
$27.9M 0.14%
179,038
+88,888
+99% +$16.3M
ALLE icon
149
Allegion
ALLE
$14.1B
$27.2M 0.13%
295,585
+1,038
+0.4% +$124K
DAR icon
150
Darling Ingredients
DAR
$10B
$26.9M 0.13%
1,404,874
-22,729
-2% -$576K
4 5
6
7 8

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William Blair Investment Management's Q1 2020 Portfolio in Review

As of Q1 2020, William Blair Investment Management held 396 positions worth $20.5B, down 18% from $25.1B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair Investment Management's Q1 2020 filing shows 40 new, 177 increased, 118 reduced and 57 closed positions. Its largest new stake was SolarEdge: 1,432,686 shares worth $117M. The largest sale was Vail Resorts, an estimated $240M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 23% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q1 2020 buy was SolarEdge: 1,432,686 shares worth $117M.
  • William Blair Investment Management added most to TAL Education Group in Q1 2020, an estimated $224M increase.
  • William Blair Investment Management's biggest Q1 2020 reduction was Check Point Software Technologies, cutting an estimated $173M.
  • William Blair Investment Management fully exited Vail Resorts in Q1 2020, selling an estimated $240M.
  • William Blair Investment Management's ten largest holdings make up 23% of its $20.5B portfolio in Q1 2020.
  • William Blair Investment Management opened 40 new positions and closed 57 in Q1 2020.
  • William Blair Investment Management's portfolio value fell 18% quarter-over-quarter to $20.5B.

Based on William Blair Investment Management's 13F filing for Q1 2020, filed 8 May 2020.