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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
+5.78%
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
$26.2B
AUM Growth
+$458M
Cap. Flow
-$551M
Cap. Flow %
-2.1%
Top 10 Hldgs %
18.81%
Holding
469
New
42
Increased
161
Reduced
223
Closed
36

Top Buys

Rank Stock Value
1
HCSG icon
Healthcare Services Group
HCSG
+$169M
2
WP
Worldpay, Inc.
WP
+$159M
3
CTLT
CATALENT, INC.
CTLT
+$146M
4
PE
PARSLEY ENERGY INC
PE
+$136M
5
P
Everpure Inc
P
+$129M

Top Sells

Rank Stock Value
1
MMS icon
Maximus
MMS
+$224M
2
CNI icon
Canadian National Railway
CNI
+$212M
3
AMG icon
Affiliated Managers Group
AMG
+$199M
4
CSRA
CSRA Inc.
CSRA
+$167M
5
TTWO icon
Take-Two Interactive
TTWO
+$162M

Sector Composition

Rank Sector Weight
1 Technology 14.91%
2 Financials 14.73%
3 Consumer Discretionary 14.13%
4 Industrials 13.07%
5 Healthcare 12.8%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BABA icon
1
Alibaba
BABA
$305B
$977M 3.73%
5,324,208
+8,023
+0.2% +$1.51M
TSM icon
2
TSMC
TSM
$2.16T
$793M 3.03%
18,129,743
+752,359
+4% +$32.8M
SPY icon
3
State Street SPDR S&P 500 ETF Trust
SPY
$814B
$571M 2.18%
2,170,220
+10,300
+0.5% +$2.81M
CPRT icon
4
Copart
CPRT
$26.8B
$493M 1.88%
38,729,964
+1,377,072
+4% +$15.9M
CSGP icon
5
CoStar Group
CSGP
$12B
$419M 1.6%
11,564,380
+164,070
+1% +$5.66M
BWXT icon
6
BWX Technologies
BWXT
$15.9B
$373M 1.42%
5,869,429
+141,451
+2% +$8.97M
DPZ icon
7
Domino's
DPZ
$12.2B
$366M 1.4%
1,566,077
-7,256
-0.5% -$1.58M
TD icon
8
Toronto Dominion Bank
TD
$201B
$319M 1.22%
5,632,257
+746,666
+15% +$43.7M
SU icon
9
Suncor Energy
SU
$75.9B
$317M 1.21%
9,185,516
-211,606
-2% -$7.37M
IWD icon
10
iShares Russell 1000 Value ETF
IWD
$82.6B
$295M 1.13%
2,462,800
+45,350
+2% +$5.65M
BAH icon
11
Booz Allen Hamilton
BAH
$8.51B
$286M 1.09%
7,385,601
+611,308
+9% +$23.6M
SIX
12
DELISTED
Six Flags Entertainment Corp.
SIX
$285M 1.09%
4,580,227
+64,383
+1% +$4.2M
BAP icon
13
Credicorp
BAP
$31.5B
$282M 1.08%
1,241,084
-29,123
-2% -$6.46M
AMZN icon
14
Amazon
AMZN
$3.01T
$280M 1.07%
3,873,080
-536,680
-12% -$38.4M
BALL icon
15
Ball Corp
BALL
$16.9B
$280M 1.07%
7,053,694
+434,290
+7% +$17M
GWRE icon
16
Guidewire Software
GWRE
$13.2B
$249M 0.95%
3,086,544
-69,136
-2% -$5.56M
WEX icon
17
WEX
WEX
$6.39B
$246M 0.94%
1,573,513
+402,785
+34% +$60.5M
ZTS icon
18
Zoetis
ZTS
$31.8B
$246M 0.94%
2,942,303
-272,529
-8% -$21.5M
EHC icon
19
Encompass Health
EHC
$10.9B
$235M 0.9%
5,159,085
+123,463
+2% +$5.29M
NBIS
20
Nebius Group N.V.
NBIS
$56B
$232M 0.89%
5,889,191
+1,942,192
+49% +$76.2M
YUMC icon
21
Yum China
YUMC
$16.4B
$232M 0.89%
5,586,619
-24,890
-0.4% -$1.07M
MIDD icon
22
Middleby
MIDD
$6.24B
$231M 0.88%
1,869,814
+31,039
+2% +$4.07M
CVSA
23
Covista Inc
CVSA
$4.35B
$223M 0.85%
4,696,020
+594,215
+14% +$27.8M
LYV icon
24
Live Nation Entertainment
LYV
$42.5B
$223M 0.85%
5,295,961
+1,157,350
+28% +$51.3M
MSFT icon
25
Microsoft
MSFT
$3.67T
$223M 0.85%
2,439,578
-270,927
-10% -$24.8M
1
2 3 4 5

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William Blair Investment Management's Q1 2018 Portfolio in Review

As of Q1 2018, William Blair Investment Management held 469 positions worth $26.2B, up 1.8% from $25.7B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management's Q1 2018 filing shows 42 new, 161 increased, 223 reduced and 36 closed positions. Its largest new stake was Healthcare Services Group: 3,458,904 shares worth $150M. The largest sale was Maximus, an estimated $224M.

By sector, the portfolio is most concentrated in Technology at 15% of assets, up from 14% a quarter earlier, followed by Financials and Consumer Discretionary.

  • William Blair Investment Management's largest Q1 2018 buy was Healthcare Services Group: 3,458,904 shares worth $150M.
  • William Blair Investment Management added most to PARSLEY ENERGY INC in Q1 2018, an estimated $136M increase.
  • William Blair Investment Management's biggest Q1 2018 reduction was Canadian National Railway, cutting an estimated $212M.
  • William Blair Investment Management fully exited Maximus in Q1 2018, selling an estimated $224M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $26.2B portfolio in Q1 2018.
  • William Blair Investment Management opened 42 new positions and closed 36 in Q1 2018.
  • William Blair Investment Management's portfolio value rose 1.8% quarter-over-quarter to $26.2B.

Based on William Blair Investment Management's 13F filing for Q1 2018, filed 14 May 2018.