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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
+10.92%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$16.3B
AUM Growth
+$1.62B
Cap. Flow
+$161M
Cap. Flow %
0.98%
Top 10 Hldgs %
21.12%
Holding
1,696
New
110
Increased
623
Reduced
570
Closed
77

Top Buys

Rank Stock Value
1
DLB icon
Dolby
DLB
+$37M
2
DSI icon
iShares MSCI KLD 400 Social ETF
DSI
+$20M
3
PGR icon
Progressive
PGR
+$19.6M
4
KMX icon
CarMax
KMX
+$19.2M
5
TYL icon
Tyler Technologies
TYL
+$18.5M

Sector Composition

Rank Sector Weight
1 Technology 21.34%
2 Healthcare 18.9%
3 Financials 12.91%
4 Industrials 9.71%
5 Consumer Discretionary 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
EZM icon
1426
WisdomTree US MidCap Fund
EZM
$950M
$65K ﹤0.01%
1,563
IVOV icon
1427
Vanguard S&P Mid-Cap 400 Value ETF
IVOV
$1.35B
$65K ﹤0.01%
1,012
OR icon
1428
OR Royalties Inc
OR
$6.03B
$65K ﹤0.01%
+11,000
New +$94.1K
XME icon
1429
State Street SPDR S&P Metals & Mining ETF
XME
$4.22B
$65K ﹤0.01%
1,910
EEM icon
1430
CALL
iShares MSCI Emerging Markets ETF
EEM
$29.2B
$64K ﹤0.01%
1,500
FWONK icon
1431
Liberty Media Series C
FWONK
$25B
$64K ﹤0.01%
1,789
ADAM
1432
Adamas Trust
ADAM
$856M
$64K ﹤0.01%
+2,613
New +$65.3K
OPK icon
1433
Opko Health
OPK
$985M
$64K ﹤0.01%
18,605
-1,027
-5% -$5.45K
XES icon
1434
State Street SPDR S&P Oil & Gas Equipment & Services ETF
XES
$366M
$64K ﹤0.01%
386
+35
+10% +$5.76K
DISCK
1435
DELISTED
Discovery, Inc. Series C Common Stock
DISCK
$63K ﹤0.01%
2,122
MGC icon
1436
Vanguard Morningstar Mega Cap ETF
MGC
$10.3B
$62K ﹤0.01%
619
AAXJ icon
1437
iShares MSCI All Country Asia ex Japan ETF
AAXJ
$3.74B
$61K ﹤0.01%
857
+550
+179% +$39K
MTUM icon
1438
iShares MSCI USA Momentum Factor ETF
MTUM
$26.1B
$61K ﹤0.01%
513
SPWH icon
1439
Sportsman's Warehouse
SPWH
$46M
$60K ﹤0.01%
10,288
-19,962
-66% -$109K
SPYD icon
1440
State Street SPDR Portfolio S&P 500 High Dividend ETF
SPYD
$8.71B
$60K ﹤0.01%
1,603
IEO icon
1441
iShares US Oil & Gas Exploration & Production ETF
IEO
$545M
$59K ﹤0.01%
775
+100
+15% +$7.41K
BEST
1442
DELISTED
BEST Inc. American Depositary Shares, each representing twenty (20) Class A Ordinary Shares
BEST
$59K ﹤0.01%
+500
New +$85.3K
BKCC
1443
DELISTED
BlackRock Capital Investment Corporation
BKCC
$59K ﹤0.01%
+10,000
New +$60.8K
SNMX
1444
DELISTED
Senomyx, Inc.
SNMX
$59K ﹤0.01%
39,601
DTH icon
1445
WisdomTree International High Dividend Fund
DTH
$658M
$58K ﹤0.01%
1,400
GGN
1446
GAMCO Global Gold, Natural Resources & Income Trust
GGN
$801M
$57K ﹤0.01%
12,105
+505
+4% +$2.49K
ITB icon
1447
iShares US Home Construction ETF
ITB
$2.28B
$57K ﹤0.01%
1,602
SHYG icon
1448
iShares 0-5 Year High Yield Corporate Bond ETF
SHYG
$7.6B
$57K ﹤0.01%
1,219
-611
-33% -$28.6K
VHT icon
1449
Vanguard Health Care ETF
VHT
$18.4B
$56K ﹤0.01%
309
+1
+0.3% +$172
JCP
1450
DELISTED
J.C. Penney Company, Inc.
JCP
$56K ﹤0.01%
34,000

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William Blair & Company's Q3 2018 Portfolio in Review

As of Q3 2018, William Blair & Company held 1,696 positions worth $16.3B, up 11% from $14.7B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q3 2018 filing shows 110 new, 623 increased, 570 reduced and 77 closed positions. Its largest new stake was Marvell Technology: 234,218 shares worth $4.52M. The largest sale was Starbucks, an estimated $35.1M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, up from 20% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2018 buy was Marvell Technology: 234,218 shares worth $4.52M.
  • William Blair & Company added most to Dolby in Q3 2018, an estimated $37M increase.
  • William Blair & Company's biggest Q3 2018 reduction was Starbucks, cutting an estimated $35.1M.
  • William Blair & Company fully exited Williams Partners L.P. in Q3 2018, selling an estimated $7.8M.
  • William Blair & Company's ten largest holdings make up 21% of its $16.3B portfolio in Q3 2018.
  • William Blair & Company opened 110 new positions and closed 77 in Q3 2018.
  • William Blair & Company's portfolio value rose 11% quarter-over-quarter to $16.3B.

Based on William Blair & Company's 13F filing for Q3 2018, filed 13 Nov 2018.