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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
SPAB icon
1426
State Street SPDR Portfolio Aggregate Bond ETF
SPAB
$9.93B
$85K ﹤0.01%
2,764
– –
ETHO icon
1427
Amplify Etho Climate Leadership US ETF
ETHO
$195M
$84K ﹤0.01%
1,890
– –
UA icon
1428
Under Armour Class C
UA
$2.2B
$84K ﹤0.01%
8,514
-561
-6% -$5.27K
QVCGA
1429
DELISTED
QVC Group Inc Series A
QVCGA
$83K ﹤0.01%
230
-17
-7% -$8.04K
GLUU
1430
DELISTED
Glu Mobile Inc.
GLUU
$83K ﹤0.01%
+10,750
New +$90.3K
IFLN
1431
Invesco Bloomberg Enhanced Fallen Angels ETF
IFLN
$306M
$79K ﹤0.01%
4,278
– –
FBP icon
1432
First Bancorp
FBP
$4.46B
$78K ﹤0.01%
15,000
– –
EWZ icon
1433
iShares MSCI Brazil ETF
EWZ
$8.57B
$77K ﹤0.01%
2,779
– –
JNK icon
1434
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.31B
$77K ﹤0.01%
734
-31
-4% -$3.24K
FNDX icon
1435
Schwab Fundamental US Large Company Index ETF
FNDX
$27.4B
$75K ﹤0.01%
5,790
+1,344
+30% +$17.5K
TRVN
1436
DELISTED
Trevena, Inc.
TRVN
$75K ﹤0.01%
+40
New +$52.7K
SIEN
1437
DELISTED
Sientra, Inc.
SIEN
$75K ﹤0.01%
2,220
+795
+56% +$30.1K
MGC icon
1438
Vanguard Morningstar Mega Cap ETF
MGC
$10.4B
$74K ﹤0.01%
619
– –
ACOR
1439
DELISTED
Acorda Therapeutics
ACOR
$74K ﹤0.01%
1,192
+744
+166% +$56.1K
BBH icon
1440
VanEck Biotech ETF
BBH
$429M
$73K ﹤0.01%
450
-200
-31% -$32.5K
CGW icon
1441
Invesco S&P Global Water Index ETF
CGW
$1.07B
$73K ﹤0.01%
1,772
+241
+16% +$9.7K
LRGF icon
1442
iShares US Equity Factor ETF
LRGF
$3.71B
$73K ﹤0.01%
2,185
-1,746
-44% -$57.3K
EWY icon
1443
iShares MSCI South Korea ETF
EWY
$27.2B
$72K ﹤0.01%
1,107
-1,200
-52% -$75.2K
ILF icon
1444
iShares Latin America 40 ETF
ILF
$3.71B
$72K ﹤0.01%
3,428
– –
SCHM icon
1445
Schwab US Mid-Cap ETF
SCHM
$15.2B
$71K ﹤0.01%
3,840
-5,184
-57% -$96K
BKLN icon
1446
Invesco Senior Loan ETF
BKLN
$6.75B
$70K ﹤0.01%
3,237
-490
-13% -$10.6K
ITB icon
1447
iShares US Home Construction ETF
ITB
$2.34B
$69K ﹤0.01%
1,219
+275
+29% +$14.4K
IVOO icon
1448
Vanguard S&P Mid-Cap 400 ETF
IVOO
$3.93B
$69K ﹤0.01%
1,102
– –
ON icon
1449
ON Semiconductor
ON
$32.4B
$69K ﹤0.01%
3,166
+1,131
+56% +$24K
RIG icon
1450
Transocean
RIG
$6.37B
$68K ﹤0.01%
84,126
-134
-0.2% -$219
56 57
58
59 60

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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.