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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
MKL icon
1451
CALL
Markel Group
MKL
$23.3B
– –
-100
Closed -$98K
MMM icon
1452
CALL
3M
MMM
$90.9B
– –
-239
Closed -$42K
MSFT icon
1453
CALL
Microsoft
MSFT
$3.45T
– –
-2,700
Closed -$186K
MTLS
1454
Materialise
MTLS
$368M
– –
-67,800
Closed -$805K
NFLX icon
1455
CALL
Netflix
NFLX
$299B
– –
-1,000
Closed -$15K
NOV icon
1456
NOV
NOV
$6.93B
– –
-6,504
Closed -$214K
NSC icon
1457
CALL
Norfolk Southern
NSC
$75.4B
– –
-1,300
Closed -$158K
NTES icon
1458
NetEase
NTES
$85.3B
– –
-3,535
Closed -$213K
NTNX icon
1459
CALL
Nutanix
NTNX
$16B
– –
-23,600
Closed -$476K
NVDA icon
1460
CALL
NVIDIA
NVDA
$4.86T
– –
-40,000
Closed -$145K
NVDA icon
1461
PUT
NVIDIA
NVDA
$4.86T
– –
-56,000
Closed -$202K
OEF icon
1462
CALL
iShares S&P 100 ETF
OEF
$20.1B
– –
-200
Closed -$62K
OFG icon
1463
OFG Bancorp
OFG
$2.23B
– –
-78,817
Closed -$788K
OFIX icon
1464
Orthofix Medical
OFIX
$477M
– –
-28,001
Closed -$1.3M
ON icon
1465
ON Semiconductor
ON
$31.8B
– –
-11,000
Closed -$154K
ORCL icon
1466
CALL
Oracle
ORCL
$374B
– –
-6,900
Closed -$346K
OSIS icon
1467
OSI Systems
OSIS
$3.65B
– –
-26,900
Closed -$2.02M
PALI icon
1468
Palisade Bio
PALI
$330M
– –
-1
Closed -$506K
PAYX icon
1469
CALL
Paychex
PAYX
$41.6B
– –
-100
Closed -$6K
PEP icon
1470
CALL
PepsiCo
PEP
$190B
– –
-600
Closed -$69K
PFE icon
1471
CALL
Pfizer
PFE
$143B
– –
-1,054
Closed -$34K
PG icon
1472
CALL
Procter & Gamble
PG
$336B
– –
-4,500
Closed -$392K
PK icon
1473
Park Hotels & Resorts
PK
$3.03B
– –
-105,004
Closed -$2.83M
PLAY icon
1474
CALL
Dave & Buster's
PLAY
$377M
– –
-500
Closed -$33K
PLAY icon
1475
Dave & Buster's
PLAY
$377M
– –
-304,678
Closed -$20.3M
57 58
59
60 61

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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.