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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
SPMD icon
1501
State Street SPDR Portfolio S&P 400 Mid Cap ETF
SPMD
$19B
$38K ﹤0.01%
1,175
+375
+47% +$12.3K
FM
1502
DELISTED
iShares Frontier and Select EM ETF
FM
$38K ﹤0.01%
1,470
-100
-6% -$2.47K
IGLB icon
1503
iShares 10+ Year Investment Grade Corporate Bond ETF
IGLB
$2.78B
$37K ﹤0.01%
524
+265
+102% +$19K
INOD icon
1504
Innodata
INOD
$2.01B
$37K ﹤0.01%
12,000
-10,000
-45% -$18.4K
MDYV icon
1505
State Street SPDR S&P 400 Mid Cap Value ETF
MDYV
$2.88B
$37K ﹤0.01%
848
+348
+70% +$15.4K
SIL icon
1506
Global X Silver Miners ETF NEW
SIL
$4.89B
$37K ﹤0.01%
+860
New +$39.2K
VNM icon
1507
VanEck Vietnam ETF
VNM
$514M
$37K ﹤0.01%
2,483
+50
+2% +$725
DHR.PRA
1508
DELISTED
Danaher Corporation 4.75% Mandatory Convertible Preferred Stock, Series A
DHR.PRA
$37K ﹤0.01%
25
– –
AWRE icon
1509
Aware
AWRE
$26M
$35K ﹤0.01%
13,000
– –
SDOG icon
1510
ALPS Sector Dividend Dogs ETF
SDOG
$1.44B
$35K ﹤0.01%
+930
New +$35.4K
GBF icon
1511
iShares Government/Credit Bond ETF
GBF
$128M
$34K ﹤0.01%
270
– –
IAT icon
1512
iShares US Regional Banks ETF
IAT
$687M
$34K ﹤0.01%
1,050
– –
NFRA icon
1513
FlexShares STOXX Global Broad Infrastructure Index Fund
NFRA
$3.03B
$34K ﹤0.01%
675
+116
+21% +$5.8K
REM icon
1514
iShares Mortgage Real Estate ETF
REM
$543M
$34K ﹤0.01%
1,305
+27
+2% +$701
EES icon
1515
WisdomTree US SmallCap Earnings Fund
EES
$730M
$33K ﹤0.01%
1,111
-13
-1% -$392
IQLT icon
1516
iShares MSCI Intl Quality Factor ETF
IQLT
$14.3B
$33K ﹤0.01%
1,039
– –
PSCH icon
1517
Invesco S&P SmallCap Health Care ETF
PSCH
$172M
$33K ﹤0.01%
759
– –
BATRK icon
1518
Atlanta Braves Holdings Series B
BATRK
$3.4B
$32K ﹤0.01%
1,534
-5
-0.3% -$97
EWL icon
1519
iShares MSCI Switzerland ETF
EWL
$2.22B
$32K ﹤0.01%
785
+771
+5,507% +$31.9K
IYM icon
1520
iShares US Basic Materials ETF
IYM
$1.02B
$32K ﹤0.01%
323
+100
+45% +$9.82K
DFJ icon
1521
WisdomTree Japan SmallCap Dividend Fund
DFJ
$402M
$31K ﹤0.01%
438
– –
FCVT icon
1522
First Trust SSI Strategic Convertible Securities ETF
FCVT
$103M
$30K ﹤0.01%
+743
New +$29K
RZV icon
1523
Invesco S&P SmallCap 600 Pure Value ETF
RZV
$305M
$30K ﹤0.01%
600
-100
-14% -$5.11K
VOOG icon
1524
Vanguard S&P 500 Growth ETF
VOOG
$27.2B
$30K ﹤0.01%
870
+270
+45% +$9.18K
AOM icon
1525
iShares Core Moderate Allocation ETF
AOM
$1.77B
$29K ﹤0.01%
700
– –
59 60
61
62 63

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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.