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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
+6.55%
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
$25.7B
AUM Growth
-$2.19B
Cap. Flow
-$3.7B
Cap. Flow %
-14.37%
Top 10 Hldgs %
17.87%
Holding
463
New
30
Increased
148
Reduced
245
Closed
36

Top Sells

Rank Stock Value
1
WP
Worldpay, Inc.
WP
+$346M
2
SBAC icon
SBA Communications
SBAC
+$258M
3
CNC icon
Centene
CNC
+$212M
4
ALGN icon
Align Technology
ALGN
+$207M
5
BABA icon
Alibaba
BABA
+$194M

Sector Composition

Rank Sector Weight
1 Financials 14.64%
2 Consumer Discretionary 14.51%
3 Technology 13.93%
4 Industrials 13.62%
5 Healthcare 11.44%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
CBOE icon
76
Cboe Global Markets
CBOE
$29.9B
$118M 0.46%
945,317
+33,594
+4% +$3.93M
HXL icon
77
Hexcel
HXL
$7.82B
$118M 0.46%
1,901,603
+73,320
+4% +$4.46M
JLL icon
78
Jones Lang LaSalle
JLL
$16.7B
$115M 0.45%
770,056
+27,039
+4% +$3.82M
IDXX icon
79
Idexx Laboratories
IDXX
$46.2B
$114M 0.44%
728,725
+500,359
+219% +$78.8M
CBM
80
DELISTED
Cambrex Corporation
CBM
$113M 0.44%
2,353,032
+620,098
+36% +$30.7M
SBUX icon
81
Starbucks
SBUX
$120B
$108M 0.42%
1,874,617
-735,785
-28% -$41.6M
FANG icon
82
Diamondback Energy
FANG
$52.7B
$108M 0.42%
851,819
+169,321
+25% +$18.4M
HD icon
83
Home Depot
HD
$355B
$106M 0.41%
559,786
-249,194
-31% -$43M
FTV icon
84
Fortive
FTV
$18.6B
$104M 0.4%
2,283,497
-664,800
-23% -$30.4M
ROST icon
85
Ross Stores
ROST
$81.9B
$103M 0.4%
1,284,083
-702,658
-35% -$49.1M
DXCM icon
86
DexCom
DXCM
$32B
$101M 0.39%
7,050,476
+1,377,176
+24% +$17.9M
ECPG icon
87
Encore Capital Group
ECPG
$2.13B
$101M 0.39%
2,398,567
+9,526
+0.4% +$435K
EEFT icon
88
Euronet Worldwide
EEFT
$2.7B
$101M 0.39%
1,198,180
+315,396
+36% +$29.2M
SITE icon
89
SiteOne Landscape Supply
SITE
$4.53B
$101M 0.39%
1,314,035
-279,386
-18% -$18.9M
RTN
90
DELISTED
Raytheon Company
RTN
$99.5M 0.39%
529,482
-158,222
-23% -$29.5M
SQM icon
91
Sociedad Química y Minera de Chile
SQM
$20.6B
$98.9M 0.38%
1,666,115
-1,058,315
-39% -$60.7M
TXN icon
92
Texas Instruments
TXN
$261B
$97.2M 0.38%
931,043
-255,192
-22% -$24.8M
MNST icon
93
Monster Beverage
MNST
$88.5B
$96.6M 0.38%
3,051,910
-846,812
-22% -$25.4M
EFX icon
94
Equifax
EFX
$21.4B
$96.3M 0.37%
816,898
-267,005
-25% -$30M
TAL icon
95
TAL Education Group
TAL
$6.87B
$95M 0.37%
3,198,484
-1,635,954
-34% -$49.8M
NATI
96
DELISTED
National Instruments Corp
NATI
$94.6M 0.37%
2,272,374
-569,493
-20% -$24.9M
FSV icon
97
FirstService
FSV
$6.32B
$90.6M 0.35%
1,295,114
+23,222
+2% +$1.6M
ABEV icon
98
Ambev
ABEV
$46.4B
$86.7M 0.34%
13,418,323
-7,767,885
-37% -$49.7M
EXAS
99
DELISTED
Exact Sciences
EXAS
$83.1M 0.32%
1,581,473
-984,534
-38% -$52.6M
ULTI
100
DELISTED
Ultimate Software Group Inc
ULTI
$82.6M 0.32%
378,492
+142,353
+60% +$28.9M

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William Blair Investment Management's Q4 2017 Portfolio in Review

As of Q4 2017, William Blair Investment Management held 463 positions worth $25.7B, down 7.9% from $27.9B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair Investment Management withdrew a net $3.7B in Q4 2017, closing 36 positions and reducing 245 holdings. Its most notable exit was Worldpay, Inc., an estimated $346M position sold in full.

By sector, the portfolio is most concentrated in Financials at 15% of assets, up from 13% a quarter earlier, followed by Consumer Discretionary and Technology.

Against the trend, William Blair Investment Management opened a new position in Teledyne Technologies worth $121M.

  • William Blair Investment Management's largest Q4 2017 buy was Teledyne Technologies: 669,495 shares worth $121M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q4 2017, an estimated $206M increase.
  • William Blair Investment Management's biggest Q4 2017 reduction was SBA Communications, cutting an estimated $258M.
  • William Blair Investment Management fully exited Worldpay, Inc. in Q4 2017, selling an estimated $346M.
  • William Blair Investment Management's ten largest holdings make up 18% of its $25.7B portfolio in Q4 2017.
  • William Blair Investment Management opened 30 new positions and closed 36 in Q4 2017.
  • William Blair Investment Management's portfolio value fell 7.9% quarter-over-quarter to $25.7B.

Based on William Blair Investment Management's 13F filing for Q4 2017, filed 14 Feb 2018.