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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
+5.95%
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
$26.2B
AUM Growth
+$458M
Cap. Flow
-$585M
Cap. Flow %
-2.23%
Top 10 Hldgs %
18.81%
Holding
469
New
42
Increased
160
Reduced
224
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
MELI icon
376
Mercado Libre
MELI
$95.3B
$2.9M 0.01%
8,135
+85
+1% +$31.1K
RS icon
377
Reliance Steel & Aluminium
RS
$21.6B
$2.79M 0.01%
+32,545
New +$2.91M
VTWO icon
378
Vanguard Russell 2000 ETF
VTWO
$17.4B
$2.54M 0.01%
41,752
– –
EGN
379
DELISTED
Energen
EGN
$2.54M 0.01%
40,432
+2,618
+7% +$147K
BMA icon
380
Banco Macro
BMA
$5.08B
$2.52M 0.01%
23,385
-399,571
-94% -$43.4M
SBNY
381
DELISTED
Signature Bank
SBNY
$2.47M 0.01%
17,384
+1,125
+7% +$170K
PBR.A icon
382
Petrobras Class A
PBR.A
$104B
$2.42M 0.01%
186,665
-71,463
-28% -$878K
ARCO icon
383
Arcos Dorados Holdings
ARCO
$1.67B
$2.16M 0.01%
242,486
-641,010
-73% -$6.01M
ANET icon
384
Arista Networks
ANET
$263B
$2.11M 0.01%
131,984
-9,191,328
-99% -$155M
ISRG icon
385
Intuitive Surgical
ISRG
$142B
$2.03M 0.01%
14,781
– –
DNB
386
DELISTED
Dun & Bradstreet
DNB
$2.03M 0.01%
17,313
-661,996
-97% -$80.5M
WPM icon
387
Wheaton Precious Metals
WPM
$61.5B
$1.99M 0.01%
97,691
+34,807
+55% +$715K
SKT icon
388
Tanger
SKT
$4.45B
$1.98M 0.01%
90,164
+3,948
+5% +$92.6K
IWO icon
389
iShares Russell 2000 Growth ETF
IWO
$15B
$1.79M 0.01%
9,400
+2,450
+35% +$470K
YOGA
390
DELISTED
YogaWorks, Inc. Common Stock
YOGA
$1.75M 0.01%
607,110
-11,028
-2% -$30.8K
ORLY icon
391
O'Reilly Automotive
ORLY
$74.3B
$1.72M 0.01%
104,505
– –
EDN
392
Edenor
EDN
$997M
$1.7M 0.01%
29,460
+308
+1% +$17.5K
LULU icon
393
lululemon athletica
LULU
$13.8B
$1.59M 0.01%
17,829
+674
+4% +$53.9K
NNN icon
394
NNN REIT
NNN
$8.79B
$1.53M 0.01%
38,923
-64,378
-62% -$2.51M
ATO icon
395
Atmos Energy
ATO
$28.6B
$1.51M 0.01%
17,891
+3,896
+28% +$317K
ETFC
396
DELISTED
E*Trade Financial Corporation
ETFC
$1.5M 0.01%
27,031
-2,289
-8% -$122K
DNKN
397
DELISTED
Dunkin' Brands Group, Inc.
DNKN
$1.44M 0.01%
24,109
+4,712
+24% +$292K
ODFL icon
398
Old Dominion Freight Line
ODFL
$44.2B
$1.43M 0.01%
29,280
-2,286
-7% -$108K
CPRI icon
399
Capri Holdings
CPRI
$1.75B
$1.43M 0.01%
+22,976
New +$1.46M
KSS icon
400
Kohl's
KSS
$2.15B
$1.43M 0.01%
+21,751
New +$1.38M
14 15
16
17 18

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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, 160 increased, 224 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.