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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
+512.03%
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
QUAL icon
1576
iShares MSCI USA Quality Factor ETF
QUAL
$48B
$9K ﹤0.01%
100
EWD icon
1577
iShares MSCI Sweden ETF
EWD
$596M
$8K ﹤0.01%
248
-1,588
-86% -$50.3K
EWM icon
1578
iShares MSCI Malaysia ETF
EWM
$329M
$8K ﹤0.01%
250
HYGH icon
1579
iShares Interest Rate Hedged High Yield Bond ETF
HYGH
$596M
$8K ﹤0.01%
92
MCHP icon
1580
CALL
Microchip Technology
MCHP
$43.3B
$8K ﹤0.01%
+200
New +$8.84K
MORT icon
1581
VanEck Mortgage REIT Income ETF
MORT
$377M
$8K ﹤0.01%
350
TGB
1582
Trekor Metals
TGB
$2.97B
$8K ﹤0.01%
10,000
VIOV icon
1583
Vanguard S&P Small-Cap 600 Value ETF
VIOV
$1.9B
$8K ﹤0.01%
112
-44
-28% -$3.21K
BLV icon
1584
Vanguard Long-Term Bond ETF
BLV
$5.76B
$7K ﹤0.01%
85
LMBS icon
1585
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
$6.37B
$7K ﹤0.01%
144
SMOG icon
1586
VanEck Low Carbon Energy ETF
SMOG
$133M
$7K ﹤0.01%
115
GCVRZ
1587
DELISTED
Sanofi Contingent Value Rights
GCVRZ
$7K ﹤0.01%
14,032
-628
-4% -$337
SCHV
1588
Schwab US Large-Cap Value ETF
SCHV
$16.2B
$6K ﹤0.01%
312
-3
-1% -$56
VNM icon
1589
VanEck Vietnam ETF
VNM
$507M
$6K ﹤0.01%
383
VTWV icon
1590
Vanguard Russell 2000 Value ETF
VTWV
$1.32B
$6K ﹤0.01%
50
PZI
1591
DELISTED
Invesco Zacks Micro Cap ETF
PZI
$6K ﹤0.01%
292
EWP icon
1592
iShares MSCI Spain ETF
EWP
$2.15B
$5K ﹤0.01%
180
-1,017
-85% -$31K
IXP icon
1593
iShares Global Comm Services ETF
IXP
$579M
$5K ﹤0.01%
85
NORW icon
1594
Global X MSCI Norway ETF
NORW
$87.9M
$5K ﹤0.01%
198
SOXX icon
1595
iShares Semiconductor ETF
SOXX
$48.5B
$5K ﹤0.01%
+78
New +$4.82K
SRLN icon
1596
State Street Blackstone Senior Loan ETF
SRLN
$5.32B
$5K ﹤0.01%
96
STIP icon
1597
iShares 0-5 Year TIPS Bond ETF
STIP
$15.8B
$5K ﹤0.01%
+48
New +$4.75K
XLC icon
1598
State Street Communication Services Select Sector SPDR ETF
XLC
$22.5B
$5K ﹤0.01%
100
FNI
1599
DELISTED
First Trust Chindia ETF
FNI
$5K ﹤0.01%
132
AIA icon
1600
iShares Asia 50 ETF
AIA
$4.79B
$4K ﹤0.01%
66

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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.