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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
XHS icon
1526
State Street SPDR S&P Health Care Services ETF
XHS
$208M
– –
-4,271
Closed -$275K
XOM icon
1527
CALL
ExxonMobil
XOM
$643B
– –
-400
Closed -$32K
ZBRA icon
1528
CALL
Zebra Technologies
ZBRA
$13.9B
– –
-800
Closed -$80K
ZION icon
1529
CALL
Zions Bancorporation
ZION
$10.3B
– –
-5,500
Closed -$242K
ZTS icon
1530
CALL
Zoetis
ZTS
$32.6B
– –
-200
Closed -$12K
TEN
1531
Tsakos Energy Navigation Ltd
TEN
$1.18B
– –
-42,900
Closed -$1.03M
EQC
1532
DELISTED
Equity Commonwealth
EQC
– –
-6,400
Closed -$202K
NVRO
1533
CALL
DELISTED
NEVRO CORP.
NVRO
– –
-2,900
Closed -$216K
INFN
1534
CALL
DELISTED
Infinera Corporation Common Stock
INFN
– –
-1,500
Closed -$16K
CTLT
1535
DELISTED
CATALENT, INC.
CTLT
– –
-6,005
Closed -$211K
SRCL
1536
CALL
DELISTED
Stericycle Inc
SRCL
– –
-1,300
Closed -$99K
SLCA
1537
CALL
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
– –
-8,900
Closed -$316K
FPL
1538
DELISTED
FIRST TRUST NEW OPPORTUNITIES MLP & ENERGY FUND
FPL
– –
-13,709
Closed -$180K
VMW
1539
CALL
DELISTED
VMware, Inc
VMW
– –
-1,100
Closed -$96K
ABB
1540
CALL
DELISTED
ABB Ltd
ABB
– –
-200
Closed -$5K
ZEN
1541
DELISTED
ZENDESK INC
ZEN
– –
-10,600
Closed -$294K
MNDT
1542
CALL
DELISTED
Mandiant, Inc. Common Stock
MNDT
– –
-200
Closed -$3K
RDUS
1543
DELISTED
Radius Health, Inc.
RDUS
– –
-4,543
Closed -$205K
XENT
1544
CALL
DELISTED
Intersect ENT, Inc
XENT
– –
-5,700
Closed -$159K
EPAY
1545
CALL
DELISTED
Bottomline Technologies Inc
EPAY
– –
-10,400
Closed -$267K
GGM
1546
DELISTED
GUGGENHEIM CREDIT ALLOCATION FUND
GGM
– –
-16,002
Closed -$371K
TLND
1547
DELISTED
Talend S.A. American Depositary Shares
TLND
– –
-12,368
Closed -$430K
ALXN
1548
CALL
DELISTED
Alexion Pharmaceuticals
ALXN
– –
-900
Closed -$110K
OXLCO
1549
DELISTED
Oxford Lane Capital Corp. Term Preferred Shares, 7.50% Series 2023
OXLCO
– –
-12,500
Closed -$318K
DX.PRB
1550
DELISTED
Dynex Capital, Inc. 7.625% Series B Cumulative Redeemable Preferred Stock
DX.PRB
– –
-13,000
Closed -$319K
60 61
62
63 64

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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.