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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
+19.2%
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
$23.8B
AUM Growth
+$3.63B
Cap. Flow
+$288M
Cap. Flow %
1.21%
Top 10 Hldgs %
20.04%
Holding
441
New
37
Increased
142
Reduced
223
Closed
35

Top Buys

Rank Stock Value
1
CHKP icon
Check Point Software Technologies
CHKP
+$181M
2
BABA icon
Alibaba
BABA
+$124M
3
EWBC icon
East-West Bancorp
EWBC
+$109M
4
STE icon
Steris
STE
+$94.6M
5
BURL icon
Burlington
BURL
+$87.9M

Top Sells

Rank Stock Value
1
SIX
Six Flags Entertainment Corp.
SIX
+$151M
2
FTNT icon
Fortinet
FTNT
+$108M
3
SU icon
Suncor Energy
SU
+$77.7M
4
WST icon
West Pharmaceutical
WST
+$73.5M
5
WW
WW International
WW
+$59M

Sector Composition

Rank Sector Weight
1 Technology 17.21%
2 Consumer Discretionary 14.5%
3 Healthcare 14.2%
4 Industrials 13.82%
5 Financials 13.22%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CXO
401
DELISTED
CONCHO RESOURCES INC.
CXO
$646K ﹤0.01%
5,823
– –
ODFL icon
402
Old Dominion Freight Line
ODFL
$43.9B
$579K ﹤0.01%
12,024
-7,251
-38% -$339K
IWP icon
403
iShares Russell Mid-Cap Growth ETF
IWP
$21.1B
$273K ﹤0.01%
+4,020
New +$258K
KT icon
404
KT
KT
$8.88B
$166K ﹤0.01%
+13,380
New +$182K
EMB icon
405
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$14.9B
$63K ﹤0.01%
570
-30
-5% -$3.24K
ELD icon
406
WisdomTree Emerging Markets Local Debt Fund
ELD
$142M
$62K ﹤0.01%
1,800
-100
-5% -$3.44K
ALK icon
407
Alaska Air
ALK
$5.44B
– –
-17,747
Closed -$1.08M
ATHM icon
408
Autohome
ATHM
$2.64B
– –
-646,822
Closed -$50.6M
BIIB icon
409
Biogen
BIIB
$29.9B
– –
-28,149
Closed -$8.47M
CASH icon
410
Pathward Financial
CASH
$1.82B
– –
-71,188
Closed -$1.38M
CHDN icon
411
Churchill Downs
CHDN
$6.16B
– –
-383,988
Closed -$15.6M
CNQ icon
412
Canadian Natural Resources
CNQ
$97.9B
– –
-204,688
Closed -$2.42M
EFA icon
413
iShares MSCI EAFE ETF
EFA
$80.4B
– –
-63,298
Closed -$3.72M
EPAM icon
414
EPAM Systems
EPAM
$5.09B
– –
-112,691
Closed -$13.1M
FTNT icon
415
Fortinet
FTNT
$119B
– –
-7,632,515
Closed -$108M
HYG icon
416
PUT
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
$17.9B
– –
-2,506,900
Closed -$2.78M
IEX icon
417
IDEX
IEX
$17.7B
– –
-10,192
Closed -$1.29M
IWF icon
418
iShares Russell 1000 Growth ETF
IWF
$128B
– –
-5,580
Closed -$183K
IX icon
419
ORIX
IX
$43.9B
– –
-272,765
Closed -$3.9M
PENN icon
420
PENN Entertainment
PENN
$2.56B
– –
-746,376
Closed -$14.1M
RS icon
421
Reliance Steel & Aluminium
RS
$21.8B
– –
-29,960
Closed -$2.13M
SQM icon
422
Sociedad Química y Minera de Chile
SQM
$20.9B
– –
-1,105,700
Closed -$42.4M
SU icon
423
Suncor Energy
SU
$73.9B
– –
-2,782,118
Closed -$77.7M
TFIN icon
424
Triumph Financial Inc
TFIN
$1.84B
– –
-277,752
Closed -$8.25M
TKR icon
425
Timken Company
TKR
$9.05B
– –
-285,074
Closed -$10.6M
14 15 16
17
18

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William Blair Investment Management's Q1 2019 Portfolio in Review

As of Q1 2019, William Blair Investment Management held 441 positions worth $23.8B, up 18% from $20.1B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

William Blair Investment Management's Q1 2019 filing shows 37 new, 142 increased, 223 reduced and 35 closed positions. Its largest new stake was Steris: 803,400 shares worth $103M. The largest sale was Six Flags Entertainment Corp., an estimated $151M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, up from 16% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • William Blair Investment Management's largest Q1 2019 buy was Steris: 803,400 shares worth $103M.
  • William Blair Investment Management added most to Check Point Software Technologies in Q1 2019, an estimated $181M increase.
  • William Blair Investment Management's biggest Q1 2019 reduction was WW International, cutting an estimated $59M.
  • William Blair Investment Management fully exited Six Flags Entertainment Corp. in Q1 2019, selling an estimated $151M.
  • William Blair Investment Management's ten largest holdings make up 20% of its $23.8B portfolio in Q1 2019.
  • William Blair Investment Management opened 37 new positions and closed 35 in Q1 2019.
  • William Blair Investment Management's portfolio value rose 18% quarter-over-quarter to $23.8B.

Based on William Blair Investment Management's 13F filing for Q1 2019, filed 10 May 2019.