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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
+5.95%
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
$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
EXAS
101
DELISTED
Exact Sciences
EXAS
$79.8M 0.3%
1,977,619
+396,146
+25% +$19.3M
NICE icon
102
Nice
NICE
$5.95B
$79.5M 0.3%
846,502
+46,096
+6% +$4.3M
EWZ icon
103
iShares MSCI Brazil ETF
EWZ
$8.6B
$76.7M 0.29%
1,709,300
-217,050
-11% -$9.71M
IWF icon
104
iShares Russell 1000 Growth ETF
IWF
$127B
$76.5M 0.29%
2,247,720
-70,800
-3% -$2.48M
CIGI icon
105
Colliers International
CIGI
$5.3B
$75.7M 0.29%
1,090,699
+51,425
+5% +$3.25M
ACN icon
106
Accenture
ACN
$110B
$75.3M 0.29%
490,858
-46,311
-9% -$7.34M
NFLX icon
107
Netflix
NFLX
$311B
$75.3M 0.29%
2,550,540
-672,670
-21% -$18.3M
ICLR icon
108
Icon
ICLR
$12.8B
$75.1M 0.29%
635,444
+90,688
+17% +$10.4M
TXN icon
109
Texas Instruments
TXN
$257B
$74.1M 0.28%
713,621
-217,422
-23% -$23.5M
SHOP icon
110
Shopify
SHOP
$196B
$73.1M 0.28%
5,863,910
+1,747,610
+42% +$22.6M
INDA icon
111
iShares MSCI India ETF
INDA
$6.6B
$70.5M 0.27%
2,067,000
-15,900
-0.8% -$564K
NUS icon
112
Nu Skin
NUS
$236M
$67.8M 0.26%
920,368
+40,629
+5% +$2.88M
JPM icon
113
JPMorgan Chase
JPM
$962B
$67.5M 0.26%
613,525
-15,037
-2% -$1.7M
ALGN icon
114
Align Technology
ALGN
$12.3B
$66.9M 0.26%
266,450
-89,802
-25% -$23.1M
LQD icon
115
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.6B
$66.8M 0.26%
568,900
+20,100
+4% +$2.37M
FANG icon
116
Diamondback Energy
FANG
$56.5B
$66.5M 0.25%
525,797
-326,022
-38% -$41.1M
BLK icon
117
Blackrock
BLK
$178B
$66.3M 0.25%
122,414
-19,727
-14% -$10.8M
DHR icon
118
Danaher
DHR
$146B
$66.2M 0.25%
763,084
-160,129
-17% -$14M
EOG icon
119
EOG Resources
EOG
$75.2B
$65.9M 0.25%
625,767
+90,302
+17% +$9.74M
TTC icon
120
Toro Company
TTC
$9.41B
$65.5M 0.25%
1,048,580
+104,714
+11% +$6.67M
RGEN icon
121
Repligen
RGEN
$9.3B
$65.4M 0.25%
1,806,703
+4,134
+0.2% +$145K
XYL icon
122
Xylem
XYL
$28.8B
$62.6M 0.24%
813,900
-32,430
-4% -$2.4M
BSAC icon
123
Banco Santander Chile
BSAC
$16.5B
$60.2M 0.23%
1,796,518
+110,227
+7% +$3.65M
WAB icon
124
Wabtec
WAB
$50.3B
$60M 0.23%
736,662
-49,196
-6% -$3.96M
AAMI
125
Acadian Asset Management
AAMI
$3.25B
$59.5M 0.23%
3,773,632
+214,887
+6% +$3.54M
3 4
5
6 7

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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.