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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
-14.81%
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
$20.1B
AUM Growth
-$8.75B
Cap. Flow
-$4.18B
Cap. Flow %
-20.77%
Top 10 Hldgs %
19.04%
Holding
450
New
31
Increased
192
Reduced
174
Closed
46

Top Buys

Rank Stock Value
1
CNI icon
Canadian National Railway
CNI
+$128M
2
WW
WW International
WW
+$107M
3
INGN icon
Inogen
INGN
+$106M
4
TREX icon
Trex
TREX
+$106M
5
SABR icon
Sabre
SABR
+$95.3M

Sector Composition

Rank Sector Weight
1 Technology 16.34%
2 Healthcare 14.5%
3 Financials 13.62%
4 Consumer Discretionary 13.1%
5 Industrials 12.65%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
SNA icon
376
Snap-on
SNA
$21.3B
$1.11M 0.01%
+7,637
New +$1.21M
J icon
377
Jacobs Solutions
J
$17.3B
$1.1M 0.01%
+22,772
New +$1.3M
HOLX
378
DELISTED
Hologic
HOLX
$1.09M 0.01%
26,641
+3,894
+17% +$160K
WTRG icon
379
Essential Utilities
WTRG
$11.4B
$1.09M 0.01%
32,009
+4,682
+17% +$162K
ALK icon
380
Alaska Air
ALK
$5.4B
$1.08M 0.01%
+17,747
New +$1.15M
TRGP icon
381
Targa Resources
TRGP
$56.9B
$1.04M 0.01%
28,962
+4,234
+17% +$205K
VOYA icon
382
Voya Financial
VOYA
$8.9B
$1.02M 0.01%
25,481
+3,727
+17% +$166K
RY icon
383
Royal Bank of Canada
RY
$292B
$1.01M 0.01%
14,695
-200
-1% -$14.6K
ELS icon
384
Equity Lifestyle Properties
ELS
$12.4B
$985K ﹤0.01%
20,272
+2,964
+17% +$143K
CPT icon
385
Camden Property Trust
CPT
$10.9B
$966K ﹤0.01%
10,974
+1,604
+17% +$147K
WPX
386
DELISTED
WPX Energy, Inc.
WPX
$928K ﹤0.01%
81,744
+11,953
+17% +$181K
LNT icon
387
Alliant Energy
LNT
$17.8B
$913K ﹤0.01%
21,607
-1,856
-8% -$81.6K
IPG
388
DELISTED
Interpublic Group of Companies
IPG
$863K ﹤0.01%
+41,833
New +$956K
ODFL icon
389
Old Dominion Freight Line
ODFL
$43.4B
$793K ﹤0.01%
+19,275
New +$854K
INGR icon
390
Ingredion
INGR
$6.6B
$776K ﹤0.01%
8,485
+1,240
+17% +$124K
DNKN
391
DELISTED
Dunkin' Brands Group, Inc.
DNKN
$771K ﹤0.01%
12,017
-1,917
-14% -$136K
AFG icon
392
American Financial Group
AFG
$12B
$765K ﹤0.01%
8,455
+1,236
+17% +$124K
AMG icon
393
Affiliated Managers Group
AMG
$9.48B
$723K ﹤0.01%
7,425
STLD icon
394
Steel Dynamics
STLD
$37.8B
$712K ﹤0.01%
23,702
+3,465
+17% +$131K
ETFC
395
DELISTED
E*Trade Financial Corporation
ETFC
$689K ﹤0.01%
15,713
+2,299
+17% +$113K
UGI icon
396
UGI
UGI
$7.54B
$665K ﹤0.01%
+12,467
New +$693K
FAF icon
397
First American
FAF
$7.32B
$630K ﹤0.01%
14,118
+2,062
+17% +$95.6K
CXO
398
DELISTED
CONCHO RESOURCES INC.
CXO
$599K ﹤0.01%
5,823
PTEN icon
399
Patterson-UTI
PTEN
$4.22B
$588K ﹤0.01%
56,851
+8,315
+17% +$123K
XLV icon
400
State Street Health Care Select Sector SPDR ETF
XLV
$43.9B
$342K ﹤0.01%
3,957

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William Blair Investment Management's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair Investment Management held 450 positions worth $20.1B, down 30% from $28.9B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management withdrew a net $4.18B in Q4 2018, closing 46 positions and reducing 174 holdings. Its most notable exit was Hexcel, an estimated $187M position sold in full.

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

Against the trend, William Blair Investment Management opened a new position in Inogen worth $80.2M.

  • William Blair Investment Management's largest Q4 2018 buy was Inogen: 646,263 shares worth $80.2M.
  • William Blair Investment Management added most to Canadian National Railway in Q4 2018, an estimated $128M increase.
  • William Blair Investment Management's biggest Q4 2018 reduction was Suncor Energy, cutting an estimated $195M.
  • William Blair Investment Management fully exited Hexcel in Q4 2018, selling an estimated $187M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $20.1B portfolio in Q4 2018.
  • William Blair Investment Management opened 31 new positions and closed 46 in Q4 2018.
  • William Blair Investment Management's portfolio value fell 30% quarter-over-quarter to $20.1B.

Based on William Blair Investment Management's 13F filing for Q4 2018, filed 13 Feb 2019.