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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
+8.82%
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
$27.9B
AUM Growth
+$434M
Cap. Flow
-$1.39B
Cap. Flow %
-4.97%
Top 10 Hldgs %
16.81%
Holding
485
New
38
Increased
170
Reduced
217
Closed
52

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$124M
2
WEX icon
WEX
WEX
+$108M
3
DXCM icon
DexCom
DXCM
+$100M
4
TSM icon
TSMC
TSM
+$99.8M
5
YELP icon
Yelp
YELP
+$93.8M

Top Sells

Rank Stock Value
1
ORLY icon
O'Reilly Automotive
ORLY
+$155M
2
SBNY
Signature Bank
SBNY
+$152M
3
ODFL icon
Old Dominion Freight Line
ODFL
+$132M
4
BABA icon
Alibaba
BABA
+$128M
5
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$119M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 15.32%
2 Industrials 13.97%
3 Financials 13.47%
4 Technology 12.68%
5 Healthcare 12.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HDB icon
26
HDFC Bank
HDB
$121B
$269M 0.96%
11,178,800
+232,760
+2% +$5.53M
MA icon
27
Mastercard
MA
$493B
$249M 0.89%
1,761,444
-268,431
-13% -$35.5M
MIDD icon
28
Middleby
MIDD
$6.08B
$249M 0.89%
1,939,553
+129,650
+7% +$16M
PGR icon
29
Progressive
PGR
$125B
$242M 0.87%
5,005,580
+206,518
+4% +$9.66M
TCOM icon
30
Trip.com Group
TCOM
$29.1B
$240M 0.86%
4,544,373
-84,868
-2% -$4.61M
ALGN icon
31
Align Technology
ALGN
$12.3B
$236M 0.84%
1,266,308
-245,617
-16% -$42M
ZD icon
32
Ziff Davis
ZD
$1.98B
$235M 0.84%
3,655,047
+73,093
+2% +$4.95M
META icon
33
Meta Platforms (Facebook)
META
$1.51T
$231M 0.83%
1,354,480
-221,466
-14% -$37M
VRSK icon
34
Verisk Analytics
VRSK
$25B
$223M 0.8%
2,676,421
-329,928
-11% -$27.3M
UNH icon
35
UnitedHealth
UNH
$370B
$222M 0.8%
1,134,977
-170,264
-13% -$32.9M
MMS icon
36
Maximus
MMS
$3.1B
$218M 0.78%
3,374,826
-86,404
-2% -$5.3M
ANET icon
37
Arista Networks
ANET
$238B
$206M 0.74%
17,368,160
-475,120
-3% -$4.97M
EHC icon
38
Encompass Health
EHC
$12.4B
$197M 0.71%
5,339,104
-69,460
-1% -$2.47M
CSRA
39
DELISTED
CSRA Inc.
CSRA
$195M 0.7%
6,048,003
-3,225,000
-35% -$104M
LOPE icon
40
Grand Canyon Education
LOPE
$3.98B
$190M 0.68%
2,088,949
+34,810
+2% +$2.79M
YUMC icon
41
Yum China
YUMC
$16.3B
$188M 0.67%
4,699,192
+383,221
+9% +$14.3M
TTWO icon
42
Take-Two Interactive
TTWO
$46.1B
$185M 0.66%
1,809,200
+230,521
+15% +$20.6M
DPZ icon
43
Domino's
DPZ
$11.6B
$171M 0.61%
858,919
+320,850
+60% +$62.5M
TSCO icon
44
Tractor Supply
TSCO
$18B
$169M 0.61%
13,361,715
-5,264,245
-28% -$59.7M
UNP icon
45
Union Pacific
UNP
$174B
$167M 0.6%
1,443,612
-385,229
-21% -$41.3M
VEEV icon
46
Veeva Systems
VEEV
$37.4B
$165M 0.59%
2,917,890
-101,449
-3% -$6.15M
TAL icon
47
TAL Education Group
TAL
$6.87B
$163M 0.58%
4,834,438
+689,254
+17% +$19.4M
NTES icon
48
NetEase
NTES
$84.7B
$160M 0.57%
3,037,215
-1,066,605
-26% -$61.3M
ICE icon
49
Intercontinental Exchange
ICE
$84.4B
$160M 0.57%
2,327,345
-274,545
-11% -$18.1M
ABMD
50
DELISTED
Abiomed Inc
ABMD
$159M 0.57%
944,861
-28,933
-3% -$4.38M
1
2
3 4 5

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William Blair Investment Management's Q3 2017 Portfolio in Review

As of Q3 2017, William Blair Investment Management held 485 positions worth $27.9B, up 1.6% from $27.5B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $1.39B in Q3 2017, closing 52 positions and reducing 217 holdings. Its most notable exit was Amedisys, an estimated $91.9M position sold in full.

By sector, the portfolio is most concentrated in Consumer Discretionary at 15% of assets, down from 16% a quarter earlier, followed by Industrials and Financials.

Against the trend, William Blair Investment Management opened a new position in Rogers Communications worth $125M.

  • William Blair Investment Management's largest Q3 2017 buy was Rogers Communications: 2,429,600 shares worth $125M.
  • William Blair Investment Management added most to TSMC in Q3 2017, an estimated $99.8M increase.
  • William Blair Investment Management's biggest Q3 2017 reduction was O'Reilly Automotive, cutting an estimated $155M.
  • William Blair Investment Management fully exited Amedisys in Q3 2017, selling an estimated $91.9M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $27.9B portfolio in Q3 2017.
  • William Blair Investment Management opened 38 new positions and closed 52 in Q3 2017.
  • William Blair Investment Management's portfolio value rose 1.6% quarter-over-quarter to $27.9B.

Based on William Blair Investment Management's 13F filing for Q3 2017, filed 13 Nov 2017.