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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
WTS icon
201
Watts Water Technologies
WTS
$12.9B
$14.6M 0.07%
172,300
-38,064
-18% -$3.64M
AIN icon
202
Albany International
AIN
$1.81B
$14.4M 0.07%
303,794
+118,355
+64% +$7.75M
OGS icon
203
ONE Gas
OGS
$5.05B
$14.4M 0.07%
171,635
+26,665
+18% +$2.36M
BLBD icon
204
Blue Bird Corp
BLBD
$2.04B
$14.3M 0.07%
1,309,053
+211,739
+19% +$3.86M
CAG icon
205
Conagra Brands
CAG
$7.16B
$14.3M 0.07%
486,795
+36,018
+8% +$1.09M
QNST icon
206
QuinStreet
QNST
$1.19B
$14.1M 0.07%
1,748,209
+194,994
+13% +$2.4M
ECH icon
207
iShares MSCI Chile ETF
ECH
$1.03B
$13.7M 0.07%
630,930
+164,130
+35% +$4.69M
AORT icon
208
Artivion
AORT
$1.4B
$13.5M 0.07%
798,752
+89,614
+13% +$2.3M
DCO icon
209
Ducommun
DCO
$3.04B
$13.4M 0.07%
537,556
+257,850
+92% +$9.92M
WNS
210
DELISTED
WNS Holdings
WNS
$13M 0.06%
302,127
-15,241
-5% -$977K
OEC icon
211
Orion
OEC
$364M
$12.9M 0.06%
1,731,225
+568,033
+49% +$8.22M
HCAT icon
212
Health Catalyst
HCAT
$135M
$12.9M 0.06%
+493,033
New +$15.1M
FORR icon
213
Forrester Research
FORR
$220M
$12.9M 0.06%
440,240
+241,953
+122% +$9.2M
KMX icon
214
CarMax
KMX
$8.33B
$12.8M 0.06%
238,435
+80,363
+51% +$6.8M
INFY icon
215
Infosys
INFY
$49.7B
$12.8M 0.06%
1,555,802
-6,572
-0.4% -$66.1K
EWM icon
216
iShares MSCI Malaysia ETF
EWM
$333M
$12.7M 0.06%
548,950
+25,550
+5% +$658K
LAD icon
217
Lithia Motors
LAD
$8.32B
$12.6M 0.06%
154,284
+17,968
+13% +$2.17M
ADC icon
218
Agree Realty
ADC
$9.25B
$12.6M 0.06%
203,058
+92,013
+83% +$6.55M
FCN icon
219
FTI Consulting
FCN
$4.22B
$12.4M 0.06%
103,189
-52,494
-34% -$6.18M
SIGI icon
220
Selective Insurance
SIGI
$5.59B
$12.3M 0.06%
248,296
+48,177
+24% +$2.93M
WCN
221
Waste Connections
WCN
$41.6B
$12.3M 0.06%
158,526
-5,500
-3% -$517K
INSM icon
222
Insmed
INSM
$28.9B
$11.5M 0.06%
+715,568
New +$17M
MTD icon
223
Mettler-Toledo International
MTD
$28.8B
$11.4M 0.06%
16,545
+3,926
+31% +$2.93M
TRNO icon
224
Terreno Realty
TRNO
$7.48B
$11.3M 0.06%
218,429
-8,052
-4% -$444K
DEI icon
225
Douglas Emmett
DEI
$1.95B
$11.3M 0.05%
369,033
+273,010
+284% +$10.6M
7 8
9
10 11

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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.