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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+4.57%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
AUM
$13.3B
AUM Growth
+$17.7M
Cap. Flow
-$449M
Cap. Flow %
-3.37%
Top 10 Hldgs %
18.64%
Holding
1,772
New
130
Increased
581
Reduced
525
Closed
417

Top Buys

Rank Stock Value
1
WSO icon
Watsco Inc
WSO
+$36.3M
2
BL icon
BlackLine
BL
+$21.8M
3
EVH icon
Evolent Health
EVH
+$19.6M
4
PGR icon
Progressive
PGR
+$17.2M
5
JPM icon
JPMorgan Chase
JPM
+$16.9M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$115M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$66M
3
COST icon
Costco
COST
+$33M
4
XRAY icon
Dentsply Sirona
XRAY
+$30.5M
5
PRAA icon
PRA Group
PRAA
+$24.5M

Sector Composition

Rank Sector Weight
1 Healthcare 18.86%
2 Technology 17.6%
3 Financials 14.62%
4 Industrials 10.54%
5 Consumer Discretionary 8.84%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AAL icon
1026
American Airlines Group
AAL
$10.1B
$377K ﹤0.01%
7,942
-1,500
-16% -$72.6K
QTWO icon
1027
Q2 Holdings
QTWO
$3.8B
$377K ﹤0.01%
9,050
+220
+2% +$8.61K
KEY icon
1028
KeyCorp
KEY
$24.2B
$376K ﹤0.01%
19,997
+5,044
+34% +$91.3K
MGEE icon
1029
MGE Energy Inc
MGEE
$3B
$376K ﹤0.01%
5,815
– –
BEN icon
1030
Franklin Resources
BEN
$17.6B
$375K ﹤0.01%
8,431
-1,000
-11% -$43.8K
ACRS icon
1031
Aclaris Therapeutics
ACRS
$726M
$374K ﹤0.01%
14,472
+797
+6% +$21.4K
PDCO
1032
DELISTED
Patterson Companies, Inc.
PDCO
$372K ﹤0.01%
9,621
-1,011
-10% -$40.4K
IJS icon
1033
iShares S&P Small-Cap 600 Value ETF
IJS
$8.12B
$371K ﹤0.01%
5,004
-190
-4% -$13.3K
TRN icon
1034
Trinity Industries
TRN
$2.49B
$371K ﹤0.01%
16,135
+755
+5% +$15.6K
SEIC icon
1035
SEI Investments
SEIC
$12.4B
$370K ﹤0.01%
6,067
+100
+2% +$5.68K
GMED icon
1036
Globus Medical
GMED
$10.7B
$368K ﹤0.01%
+12,380
New +$378K
HASI icon
1037
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$4.84B
$366K ﹤0.01%
15,000
– –
ITGR icon
1038
Integer Holdings
ITGR
$4.12B
$366K ﹤0.01%
7,152
-1,000
-12% -$45.8K
CMD
1039
DELISTED
Cantel Medical Corporation
CMD
$366K ﹤0.01%
3,885
– –
AWI icon
1040
Armstrong World Industries
AWI
$7.38B
$365K ﹤0.01%
7,120
+170
+2% +$8K
CONE
1041
DELISTED
CyrusOne Inc Common Stock
CONE
$365K ﹤0.01%
6,194
-1,000
-14% -$59.6K
SPG icon
1042
Simon Property Group
SPG
$74.4B
$364K ﹤0.01%
2,261
-1,240
-35% -$198K
COMT icon
1043
iShares GSCI Commodity Dynamic Roll Strategy ETF
COMT
$1.18B
$363K ﹤0.01%
10,424
-117
-1% -$3.94K
NTRI
1044
DELISTED
NutriSystem, Inc.
NTRI
$362K ﹤0.01%
6,480
+160
+3% +$8.66K
GRR
1045
DELISTED
Asia Tigers Fund
GRR
$361K ﹤0.01%
+29,160
New +$362K
CASS icon
1046
Cass Information Systems
CASS
$714M
$360K ﹤0.01%
7,496
-776
-9% -$37K
DWM icon
1047
WisdomTree International Equity Fund
DWM
$679M
$360K ﹤0.01%
+6,610
New +$353K
MIC
1048
DELISTED
Macquarie Infrastructure Holdings, LLC
MIC
$360K ﹤0.01%
4,983
-1,570
-24% -$117K
PBYI icon
1049
Puma Biotechnology
PBYI
$404M
$359K ﹤0.01%
3,000
– –
WEC icon
1050
WEC Energy
WEC
$35.7B
$359K ﹤0.01%
5,711
-36,940
-87% -$2.36M
40 41
42
43 44

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William Blair & Company's Q3 2017 Portfolio in Review

As of Q3 2017, William Blair & Company held 1,772 positions worth $13.3B, up 0.13% from $13.3B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair & Company withdrew a net $449M in Q3 2017, closing 417 positions and reducing 525 holdings. Its most notable exit was Dave & Buster's, an estimated $20.3M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 19% of assets, up from 19% a quarter earlier, followed by Technology and Financials.

Against the trend, William Blair & Company opened a new position in Quantenna Communications, Inc. Common Stock worth $9.07M.

  • William Blair & Company's largest Q3 2017 buy was Quantenna Communications, Inc. Common Stock: 539,590 shares worth $9.07M.
  • William Blair & Company added most to Watsco Inc in Q3 2017, an estimated $36.3M increase.
  • William Blair & Company's biggest Q3 2017 reduction was Alphabet (Google) Class C, cutting an estimated $115M.
  • William Blair & Company fully exited Dave & Buster's in Q3 2017, selling an estimated $20.3M.
  • William Blair & Company's ten largest holdings make up 19% of its $13.3B portfolio in Q3 2017.
  • William Blair & Company opened 130 new positions and closed 417 in Q3 2017.
  • William Blair & Company's portfolio value rose 0.13% quarter-over-quarter to $13.3B.

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