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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
EPP icon
1526
iShares MSCI Pacific ex Japan ETF
EPP
$2.26B
$29K ﹤0.01%
718
+101
+16% +$4.18K
GALT icon
1527
Galectin Therapeutics
GALT
$317M
$29K ﹤0.01%
10,756
– –
ISCG icon
1528
iShares Morningstar Small-Cap Growth ETF
ISCG
$1.02B
$29K ﹤0.01%
720
– –
PCRX icon
1529
Pacira BioSciences
PCRX
$945M
$29K ﹤0.01%
477
+27
+6% +$1.57K
SSO icon
1530
ProShares Ultra S&P500
SSO
$8.39B
$29K ﹤0.01%
1,568
-1,160
-43% -$20.9K
LIT icon
1531
Global X Lithium & Battery Tech ETF
LIT
$1.61B
$28K ﹤0.01%
+705
New +$26.5K
XHB icon
1532
State Street SPDR S&P Homebuilders ETF
XHB
$1.58B
$28K ﹤0.01%
+526
New +$26.6K
EWQ icon
1533
iShares MSCI France ETF
EWQ
$333M
$27K ﹤0.01%
963
+775
+412% +$22.3K
FWONA icon
1534
Liberty Media Series A
FWONA
$23.7B
$26K ﹤0.01%
799
-39
-5% -$1.26K
GUSH icon
1535
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$247M
$26K ﹤0.01%
+4,800
New +$37.4K
IVOV icon
1536
Vanguard S&P Mid-Cap 400 Value ETF
IVOV
$1.37B
$26K ﹤0.01%
502
– –
PEJ icon
1537
Invesco Leisure and Entertainment ETF
PEJ
$312M
$26K ﹤0.01%
800
-800
-50% -$25.2K
XTN icon
1538
State Street SPDR S&P Transportation ETF
XTN
$392M
$26K ﹤0.01%
450
– –
HEZU icon
1539
iShares Currency Hedged MSCI Eurozone ETF
HEZU
$590M
$25K ﹤0.01%
880
– –
IGM icon
1540
iShares Expanded Tech Sector ETF
IGM
$10.8B
$25K ﹤0.01%
+492
New +$24.8K
TOVX icon
1541
Theriva Biologics
TOVX
$11M
$25K ﹤0.01%
211
-33
-14% -$4.4K
CZA icon
1542
Invesco Zacks Mid-Cap ETF
CZA
$192M
$24K ﹤0.01%
370
– –
SOCL icon
1543
Global X Social Media ETF
SOCL
$90.3M
$24K ﹤0.01%
485
-326
-40% -$15.5K
IRIX icon
1544
IRIDEX
IRIX
$15.1M
$23K ﹤0.01%
11,928
– –
JHML icon
1545
John Hancock Multifactor Large Cap ETF
JHML
$1.2B
$23K ﹤0.01%
557
– –
PBE icon
1546
Invesco Biotechnology & Genome ETF
PBE
$358M
$23K ﹤0.01%
400
– –
EEMS icon
1547
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$379M
$22K ﹤0.01%
500
– –
MJ icon
1548
Amplify Alternative Harvest ETF
MJ
$111M
$22K ﹤0.01%
174
– –
RSPT icon
1549
Invesco S&P 500 Equal Weight Technology ETF
RSPT
$5.95B
$22K ﹤0.01%
1,040
– –
SAN icon
1550
Banco Santander
SAN
$211B
$22K ﹤0.01%
+12,186
New +$26.2K
60 61
62
63 64

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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.