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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
SMLF icon
1726
iShares US Small Cap Equity Factor ETF
SMLF
$4.31B
– –
-255
Closed -$9K
SOXX icon
1727
iShares Semiconductor ETF
SOXX
$46.2B
– –
-2,169
Closed -$196K
SPFF icon
1728
Global X SuperIncome Preferred ETF
SPFF
$143M
– –
-130
Closed -$1K
SPYV icon
1729
State Street SPDR Portfolio S&P 500 Value ETF
SPYV
$36.6B
– –
-5,400
Closed -$156K
THR
1730
DELISTED
Thermon Group Holdings
THR
– –
-14,146
Closed -$206K
TLH icon
1731
iShares 10-20 Year Treasury Bond ETF
TLH
$10.8B
– –
-226
Closed -$38K
TME icon
1732
Tencent Music
TME
$13.9B
– –
-56,048
Closed -$754K
TRGP icon
1733
Targa Resources
TRGP
$57.6B
– –
-10,850
Closed -$218K
VTR icon
1734
Ventas
VTR
$45.7B
– –
-5,709
Closed -$209K
WKHS icon
1735
Workhorse Group
WKHS
$33.7M
– –
-7
Closed -$374K
XMVM icon
1736
Invesco S&P MidCap Value with Momentum ETF
XMVM
$509M
– –
-22
Closed -$1K
XSVM icon
1737
Invesco S&P SmallCap Value with Momentum ETF
XSVM
$669M
– –
-7
Closed –
YEXT icon
1738
Yext
YEXT
$574M
– –
-30,425
Closed -$505K
ZION icon
1739
Zions Bancorporation
ZION
$10.5B
– –
-6,112
Closed -$208K
EQC
1740
DELISTED
Equity Commonwealth
EQC
– –
-6,350
Closed -$204K
ITCI
1741
DELISTED
Intra-Cellular Therapies Inc.
ITCI
– –
-30,820
Closed -$791K
SGEN
1742
DELISTED
Seagen Inc. Common Stock
SGEN
– –
-91,797
Closed -$15.6M
DRTT
1743
DELISTED
DIRTT Environmental Solutions Ltd. Common Shares
DRTT
– –
-10,000
Closed -$12K
TDW.WS.A
1744
DELISTED
Tidewater Inc. Series A Warrants to purchase shares of common stock (expiring July 31, 2023)
TDW.WS.A
$0 ﹤0.01%
43
– –
TDW.WS.B
1745
DELISTED
Tidewater Inc. Series B Warrants to purchase shares of common stock (expiring July 31, 2023)
TDW.WS.B
$0 ﹤0.01%
46
– –
QTNT
1746
DELISTED
Quotient Limited Ordinary Shares
QTNT
– –
-250
Closed -$74K
TMX
1747
DELISTED
Terminix Global Holdings, Inc.
TMX
– –
-47,127
Closed -$1.68M
AGT
1748
DELISTED
iShares MSCI Argentina and Global Exposure ETF
AGT
– –
-60
Closed -$1K
MIC
1749
DELISTED
Macquarie Infrastructure Holdings, LLC
MIC
– –
-28,724
Closed -$882K
HOME
1750
DELISTED
At Home Group Inc.
HOME
– –
-20,165
Closed -$131K
67 68 69
70
71

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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.