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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
-14.67%
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
$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
BABA icon
1
Alibaba
BABA
$308B
$1.09B 5.3%
5,597,636
-74,107
-1% -$15.5M
TSM icon
2
TSMC
TSM
$2.18T
$828M 4.03%
17,319,235
-20,308
-0.1% -$1.11M
SPY icon
3
State Street SPDR S&P 500 ETF Trust
SPY
$823B
$552M 2.69%
2,141,600
-105,700
-5% -$32.2M
NTES icon
4
NetEase
NTES
$84.7B
$385M 1.88%
6,001,665
+1,174,700
+24% +$77.3M
BWXT icon
5
BWX Technologies
BWXT
$15.6B
$379M 1.84%
7,772,185
+414,203
+6% +$24.6M
TAL icon
6
TAL Education Group
TAL
$6.87B
$334M 1.63%
6,268,554
+4,169,598
+199% +$224M
LOPE icon
7
Grand Canyon Education
LOPE
$3.98B
$312M 1.52%
4,093,884
+1,226,697
+43% +$101M
EHC icon
8
Encompass Health
EHC
$12.4B
$292M 1.42%
5,730,018
-515,112
-8% -$29.7M
AMZN icon
9
Amazon
AMZN
$2.96T
$255M 1.24%
2,615,940
+4,480
+0.2% +$434K
TREX icon
10
Trex
TREX
$5.01B
$248M 1.21%
6,183,684
-1,384,618
-18% -$64.9M
CNI icon
11
Canadian National Railway
CNI
$76.6B
$248M 1.21%
3,166,827
-176,128
-5% -$15.4M
HZNP
12
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
$246M 1.2%
8,319,945
-535,545
-6% -$18.1M
TDY icon
13
Teledyne Technologies
TDY
$32B
$243M 1.18%
818,722
+36,203
+5% +$12.4M
CPRT icon
14
Copart
CPRT
$27.5B
$230M 1.12%
13,443,820
+4,731,120
+54% +$105M
BJ icon
15
BJs Wholesale Club
BJ
$12.3B
$229M 1.12%
9,009,516
-475,768
-5% -$10.7M
LYV icon
16
Live Nation Entertainment
LYV
$42.1B
$220M 1.07%
4,843,156
+754,785
+18% +$46.6M
BN icon
17
Brookfield
BN
$108B
$219M 1.07%
13,891,983
-6,183,692
-31% -$127M
MLM icon
18
Martin Marietta Materials
MLM
$33B
$216M 1.05%
1,139,759
+101,312
+10% +$24.2M
NICE icon
19
Nice
NICE
$5.97B
$208M 1.01%
1,446,358
+180,565
+14% +$29.1M
TFX icon
20
Teleflex
TFX
$5.98B
$206M 1%
702,708
+15,725
+2% +$5.49M
PEN icon
21
Penumbra
PEN
$12.8B
$204M 0.99%
1,266,233
+48,046
+4% +$8.09M
BCO icon
22
Brink's
BCO
$4.62B
$202M 0.98%
3,887,833
+1,581,779
+69% +$124M
CABO icon
23
Cable One
CABO
$212M
$202M 0.98%
122,952
-7,381
-6% -$11.8M
P
24
Everpure Inc
P
$29.9B
$199M 0.97%
16,178,671
+634,991
+4% +$10.3M
GOOGL icon
25
Alphabet (Google) Class A
GOOGL
$4.33T
$197M 0.96%
3,385,400
-23,580
-0.7% -$1.6M
1
2 3 4 5

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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.