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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
ACN icon
101
Accenture
ACN
$108B
$82.2M 0.32%
537,169
-16,152
-3% -$2.34M
UEIC icon
102
Universal Electronics
UEIC
$70.4M
$81.3M 0.32%
1,720,168
+80,642
+5% +$4.47M
CXO
103
DELISTED
CONCHO RESOURCES INC.
CXO
$81.1M 0.32%
540,092
-197,936
-27% -$27.5M
DNB
104
DELISTED
Dun & Bradstreet
DNB
$80.4M 0.31%
679,309
-58,146
-8% -$6.9M
ALGN icon
105
Align Technology
ALGN
$12.3B
$79.2M 0.31%
356,252
-910,056
-72% -$207M
IWF icon
106
iShares Russell 1000 Growth ETF
IWF
$128B
$78.1M 0.3%
2,318,520
-145,080
-6% -$4.75M
EWZ icon
107
iShares MSCI Brazil ETF
EWZ
$8.93B
$77.9M 0.3%
1,926,350
+1,300,310
+208% +$52.6M
DHR icon
108
Danaher
DHR
$144B
$76M 0.3%
923,213
-310,902
-25% -$25.3M
INDA icon
109
iShares MSCI India ETF
INDA
$6.61B
$75.1M 0.29%
2,082,900
-115,300
-5% -$4.01M
EDU icon
110
New Oriental
EDU
$8.97B
$74.6M 0.29%
793,514
-72,256
-8% -$6.41M
NICE icon
111
Nice
NICE
$5.96B
$73.6M 0.29%
+800,406
New +$68.1M
BLK icon
112
Blackrock
BLK
$176B
$73M 0.28%
142,141
-20,739
-13% -$10.1M
TCOM icon
113
Trip.com Group
TCOM
$29.1B
$72M 0.28%
1,633,071
-2,911,302
-64% -$139M
WB icon
114
Weibo
WB
$1.93B
$71.3M 0.28%
689,361
-103,679
-13% -$10.7M
CNC icon
115
Centene
CNC
$33.2B
$70.3M 0.27%
1,394,724
-4,368,252
-76% -$212M
VIRT icon
116
Virtu Financial
VIRT
$4.96B
$67.8M 0.26%
3,705,653
+14,408
+0.4% +$234K
JPM icon
117
JPMorgan Chase
JPM
$953B
$67.2M 0.26%
628,562
-91,347
-13% -$9.25M
BA icon
118
Boeing
BA
$184B
$66.8M 0.26%
226,467
+13,540
+6% +$3.67M
LQD icon
119
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.7B
$66.7M 0.26%
548,800
+2,900
+0.5% +$351K
VMC icon
120
Vulcan Materials
VMC
$36.8B
$66.4M 0.26%
517,331
-70,584
-12% -$8.62M
RGEN icon
121
Repligen
RGEN
$9.33B
$65.4M 0.25%
1,802,569
+742,634
+70% +$26.9M
WAB icon
122
Wabtec
WAB
$49.3B
$64M 0.25%
785,858
-298,924
-28% -$22.9M
CIGI icon
123
Colliers International
CIGI
$5.13B
$62.7M 0.24%
1,039,274
-7,152
-0.7% -$413K
NFLX icon
124
Netflix
NFLX
$307B
$61.9M 0.24%
3,223,210
+1,334,170
+71% +$25.7M
TTC icon
125
Toro Company
TTC
$9.41B
$61.6M 0.24%
943,866
-373,216
-28% -$23.7M

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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.