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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
+5.57%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+771.69%
AUM
$23.8B
AUM Growth
+$71.3M
Cap. Flow
-$999M
Cap. Flow %
-4.19%
Top 10 Hldgs %
19.3%
Holding
434
New
28
Increased
138
Reduced
201
Closed
62

Top Buys

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$167M
2
BJ icon
BJs Wholesale Club
BJ
+$145M
3
AVLR
Avalara, Inc.
AVLR
+$122M
4
AMED
Amedisys
AMED
+$106M
5
SBNY
Signature Bank
SBNY
+$105M

Top Sells

Rank Stock Value
1
BALL icon
Ball Corp
BALL
+$267M
2
VEEV icon
Veeva Systems
VEEV
+$257M
3
CSGP icon
CoStar Group
CSGP
+$209M
4
BAH icon
Booz Allen Hamilton
BAH
+$146M
5
CE icon
Celanese
CE
+$141M

Sector Composition

Rank Sector Weight
1 Technology 18.31%
2 Healthcare 14.87%
3 Industrials 14.19%
4 Financials 13.92%
5 Consumer Discretionary 13.16%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BABA icon
1
Alibaba
BABA
$293B
$994M 4.17%
5,866,396
-8,886
-0.2% -$1.53M
TSM icon
2
TSMC
TSM
$2.1T
$634M 2.66%
16,194,089
-220,794
-1% -$9.09M
SPY icon
3
State Street SPDR S&P 500 ETF Trust
SPY
$790B
$593M 2.49%
2,023,700
-46,900
-2% -$13.5M
CPRT icon
4
Copart
CPRT
$27B
$393M 1.65%
21,034,068
-5,616,648
-21% -$96.4M
BWXT icon
5
BWX Technologies
BWXT
$15.5B
$365M 1.53%
7,012,266
+659,488
+10% +$32.9M
EEFT icon
6
Euronet Worldwide
EEFT
$2.72B
$364M 1.53%
2,163,193
-57,249
-3% -$8.75M
BN icon
7
Brookfield
BN
$104B
$351M 1.47%
20,617,687
+10,597
+0.1% +$179K
CNI icon
8
Canadian National Railway
CNI
$76.9B
$326M 1.37%
3,523,264
+92,187
+3% +$8.47M
BURL icon
9
Burlington
BURL
$23.2B
$300M 1.26%
1,762,083
+63,257
+4% +$10.3M
PODD icon
10
Insulet
PODD
$11.5B
$279M 1.17%
2,334,135
+189,147
+9% +$19.4M
LOPE icon
11
Grand Canyon Education
LOPE
$3.79B
$274M 1.15%
2,338,224
+552,523
+31% +$65.9M
TREX icon
12
Trex
TREX
$4.51B
$264M 1.11%
7,366,382
+1,637,470
+29% +$55.5M
LYV icon
13
Live Nation Entertainment
LYV
$40.6B
$262M 1.1%
3,954,206
-132,114
-3% -$8.49M
TD icon
14
Toronto Dominion Bank
TD
$198B
$260M 1.09%
4,461,629
-345,225
-7% -$19.4M
CBOE icon
15
Cboe Global Markets
CBOE
$32.5B
$248M 1.04%
2,397,226
-54,526
-2% -$5.65M
EHC icon
16
Encompass Health
EHC
$11B
$247M 1.04%
4,908,166
+454,213
+10% +$22M
CSGP icon
17
CoStar Group
CSGP
$11.7B
$236M 0.99%
4,267,930
-4,097,050
-49% -$209M
TRU icon
18
TransUnion
TRU
$15.1B
$231M 0.97%
3,140,470
-27,336
-0.9% -$1.87M
NTES icon
19
NetEase
NTES
$85.3B
$229M 0.96%
4,481,745
+1,024,945
+30% +$54.4M
MLM icon
20
Martin Marietta Materials
MLM
$31.5B
$229M 0.96%
995,055
-10,003
-1% -$2.17M
BAH icon
21
Booz Allen Hamilton
BAH
$8.39B
$226M 0.95%
3,420,493
-2,369,825
-41% -$146M
AMZN icon
22
Amazon
AMZN
$2.92T
$223M 0.94%
2,356,100
+20,100
+0.9% +$1.87M
MTN icon
23
Vail Resorts
MTN
$5.32B
$220M 0.92%
983,808
-6,512
-0.7% -$1.45M
TFX icon
24
Teleflex
TFX
$6.05B
$219M 0.92%
661,593
-111,132
-14% -$33.5M
ABMD
25
DELISTED
Abiomed Inc
ABMD
$212M 0.89%
815,524
+629,455
+338% +$167M
1
2 3 4 5

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William Blair Investment Management's Q2 2019 Portfolio in Review

As of Q2 2019, William Blair Investment Management held 434 positions worth $23.8B, up 0.3% from $23.8B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management withdrew a net $999M in Q2 2019, closing 62 positions and reducing 201 holdings. Its most notable exit was Inogen, an estimated $100M position sold in full.

By sector, the portfolio is most concentrated in Technology at 18% of assets, up from 17% a quarter earlier, followed by Healthcare and Industrials.

Against the trend, William Blair Investment Management opened a new position in BJs Wholesale Club worth $144M.

  • William Blair Investment Management's largest Q2 2019 buy was BJs Wholesale Club: 5,465,561 shares worth $144M.
  • William Blair Investment Management added most to Abiomed Inc in Q2 2019, an estimated $167M increase.
  • William Blair Investment Management's biggest Q2 2019 reduction was Ball Corp, cutting an estimated $267M.
  • William Blair Investment Management fully exited Inogen in Q2 2019, selling an estimated $100M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $23.8B portfolio in Q2 2019.
  • William Blair Investment Management opened 28 new positions and closed 62 in Q2 2019.
  • William Blair Investment Management's portfolio value rose 0.3% quarter-over-quarter to $23.8B.

Based on William Blair Investment Management's 13F filing for Q2 2019, filed 9 Aug 2019.