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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+12.53%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$23.6B
AUM Growth
+$2.6B
Cap. Flow
+$316M
Cap. Flow %
1.34%
Top 10 Hldgs %
26.84%
Holding
1,800
New
126
Increased
679
Reduced
652
Closed
80

Top Buys

Rank Stock Value
1
QDEL icon
QuidelOrtho
QDEL
+$40.3M
2
TDOC icon
Teladoc Health
TDOC
+$32.5M
3
CTAS icon
Cintas
CTAS
+$25.5M
4
ECL icon
Ecolab
ECL
+$25.4M
5
FTV icon
Fortive
FTV
+$24M

Top Sells

Rank Stock Value
1
GS icon
Goldman Sachs
GS
+$46.7M
2
GWRE icon
Guidewire Software
GWRE
+$38.9M
3
ANET icon
Arista Networks
ANET
+$31.4M
4
V icon
Visa
V
+$25.9M
5
PFNX
Pfenex Inc.
PFNX
+$25.4M

Sector Composition

Rank Sector Weight
1 Technology 27.37%
2 Healthcare 19.68%
3 Financials 10.88%
4 Consumer Discretionary 10.56%
5 Industrials 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PWB icon
1626
Invesco Large Cap Growth ETF
PWB
$2.43B
$6K ﹤0.01%
94
-32
-25% -$1.91K
QDF icon
1627
FlexShares Quality Dividend Index Fund
QDF
$2.28B
$6K ﹤0.01%
124
-3,250
-96% -$145K
RGLS
1628
DELISTED
Regulus Therapeutics
RGLS
$6K ﹤0.01%
1,120
– –
SCHO icon
1629
Schwab Short-Term US Treasury ETF
SCHO
$12.9B
$6K ﹤0.01%
232
-8,126
-97% -$209K
SPXS icon
1630
Direxion Daily S&P 500 Bear 3x ETF
SPXS
$333M
$6K ﹤0.01%
+11
New +$6.85K
AIA icon
1631
iShares Asia 50 ETF
AIA
$5.04B
$5K ﹤0.01%
66
– –
DFE icon
1632
WisdomTree Europe SmallCap Dividend Fund
DFE
$168M
$5K ﹤0.01%
95
– –
PWV icon
1633
Invesco Large Cap Value ETF
PWV
$1.78B
$5K ﹤0.01%
156
– –
RSPS icon
1634
Invesco S&P 500 Equal Weight Consumer Staples ETF
RSPS
$246M
$5K ﹤0.01%
175
– –
XHS icon
1635
State Street SPDR S&P Health Care Services ETF
XHS
$207M
$5K ﹤0.01%
60
-235
-80% -$17.6K
IDLB
1636
DELISTED
Invesco FTSE International Low Beta Equal Weight ETF
IDLB
$5K ﹤0.01%
180
– –
GNMA icon
1637
iShares GNMA Bond ETF
GNMA
$432M
$4K ﹤0.01%
82
– –
IDEV icon
1638
iShares Core MSCI International Developed Markets ETF
IDEV
$32.7B
$4K ﹤0.01%
70
-214
-75% -$11.6K
KBE icon
1639
State Street SPDR S&P Bank ETF
KBE
$1.74B
$4K ﹤0.01%
150
– –
OIH icon
1640
VanEck Oil Services ETF
OIH
$1.96B
$4K ﹤0.01%
45
-100
-69% -$12.3K
OXY.WS icon
1641
Occidental Petroleum Corp Warrants
OXY.WS
$34.4B
$4K ﹤0.01%
+1,475
New +$4.72K
QCLN icon
1642
First Trust NASDAQ Clean Edge Green Energy Index Fund
QCLN
$632M
$4K ﹤0.01%
+100
New +$3.84K
SPEU icon
1643
State Street SPDR Portfolio Europe ETF
SPEU
$742M
$4K ﹤0.01%
135
-150
-53% -$4.99K
SPTM icon
1644
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF
SPTM
$14.1B
$4K ﹤0.01%
107
– –
EIS icon
1645
iShares MSCI Israel ETF
EIS
$899M
$3K ﹤0.01%
50
– –
FXO icon
1646
First Trust Financials AlphaDEX Fund
FXO
$1.13B
$3K ﹤0.01%
115
-9,203
-99% -$240K
LEGR icon
1647
First Trust Indxx Innovative Transaction & Process ETF
LEGR
$133M
$3K ﹤0.01%
100
– –
PSL icon
1648
Invesco Dorsey Wright Consumer Staples Momentum ETF
PSL
$83.4M
$3K ﹤0.01%
44
– –
REZ icon
1649
iShares Residential and Multisector Real Estate ETF
REZ
$848M
$3K ﹤0.01%
50
– –
SLQD icon
1650
iShares 0-5 Year Investment Grade Corporate Bond ETF
SLQD
$2.38B
$3K ﹤0.01%
65
– –
64 65
66
67 68

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William Blair & Company's Q3 2020 Portfolio in Review

As of Q3 2020, William Blair & Company held 1,800 positions worth $23.6B, up 12% from $21B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

William Blair & Company's Q3 2020 filing shows 126 new, 679 increased, 652 reduced and 80 closed positions. Its largest new stake was Unity: 72,858 shares worth $6.36M. The largest sale was Goldman Sachs, an estimated $46.7M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, down from 27% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2020 buy was Unity: 72,858 shares worth $6.36M.
  • William Blair & Company added most to QuidelOrtho in Q3 2020, an estimated $40.3M increase.
  • William Blair & Company's biggest Q3 2020 reduction was Goldman Sachs, cutting an estimated $46.7M.
  • William Blair & Company fully exited Pfenex Inc. in Q3 2020, selling an estimated $25.4M.
  • William Blair & Company's ten largest holdings make up 27% of its $23.6B portfolio in Q3 2020.
  • William Blair & Company opened 126 new positions and closed 80 in Q3 2020.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $23.6B.

Based on William Blair & Company's 13F filing for Q3 2020, filed 6 Nov 2020.