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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
CUK
1351
DELISTED
Carnival PLC
CUK
$2K ﹤0.01%
+29
New +$1.95K
GGZ
1352
Gabelli Global Small and Mid-Cap Value Trust
GGZ
$123M
$2K ﹤0.01%
+182
New +$2.31K
KODK.WS.A
1353
DELISTED
Eastman Kodak Company
KODK.WS.A
$2K ﹤0.01%
21,789
+2,000
+10% +$358
BAC.WS.B
1354
DELISTED
Bank Of America Corporation Ws B
BAC.WS.B
$1K ﹤0.01%
+1,000
New +$733
KODK.WS
1355
DELISTED
Eastman Kodak Company
KODK.WS
$1K ﹤0.01%
+6,000
New +$1.46K
ABBV icon
1356
CALL
AbbVie
ABBV
$443B
– –
-1,100
Closed -$80K
ABT icon
1357
CALL
Abbott
ABT
$183B
– –
-2,300
Closed -$112K
ACN icon
1358
CALL
Accenture
ACN
$102B
– –
-2,400
Closed -$297K
AGEN
1359
CALL
Agenus
AGEN
$312M
– –
-280
Closed -$22K
AIR icon
1360
AAR Corp
AIR
$5.59B
– –
-9,000
Closed -$313K
AIRG icon
1361
Airgain
AIRG
$73.4M
– –
-259,292
Closed -$3.68M
ALSN icon
1362
Allison Transmission
ALSN
$9.5B
– –
-5,846
Closed -$219K
ALV icon
1363
CALL
Autoliv
ALV
$9.02B
– –
-1,110
Closed -$88K
AMED
1364
DELISTED
Amedisys
AMED
– –
-25,887
Closed -$1.63M
AMGN icon
1365
CALL
Amgen
AMGN
$208B
– –
-100
Closed -$17K
AMT icon
1366
CALL
American Tower
AMT
$80.8B
– –
-3,300
Closed -$437K
AMZN icon
1367
PUT
Amazon
AMZN
$2.92T
– –
-4,000
Closed -$194K
AVDL
1368
DELISTED
Avadel Pharmaceuticals
AVDL
– –
-180,174
Closed -$1.99M
AVGO icon
1369
Broadcom
AVGO
$1.85T
– –
-116,120
Closed -$2.71M
AX icon
1370
CALL
Axos Financial
AX
$5.77B
– –
-400
Closed -$9K
AX icon
1371
PUT
Axos Financial
AX
$5.77B
– –
-400
Closed -$9K
AYI icon
1372
CALL
Acuity Brands
AYI
$9.83B
– –
-900
Closed -$183K
BABA icon
1373
CALL
Alibaba
BABA
$293B
– –
-500
Closed -$70K
BMY icon
1374
CALL
Bristol-Myers Squibb
BMY
$133B
– –
-7,800
Closed -$435K
BMY icon
1375
PUT
Bristol-Myers Squibb
BMY
$133B
– –
-1,000
Closed -$56K
53 54
55
56 57

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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.