We are live on ! Find out more
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
TTD icon
751
Trade Desk
TTD
$6.87B
$1.02M ﹤0.01%
19,590
-6,270
-24% -$286K
AXSM icon
752
Axsome Therapeutics
AXSM
$11.2B
$1.01M ﹤0.01%
14,192
+120
+0.9% +$9.35K
MNDT
753
DELISTED
Mandiant, Inc. Common Stock
MNDT
$1.01M ﹤0.01%
81,731
+12,580
+18% +$172K
WMB icon
754
Williams Companies
WMB
$89.5B
$1.01M ﹤0.01%
51,257
+15,108
+42% +$308K
ARWR icon
755
Arrowhead Research
ARWR
$12.2B
$1M ﹤0.01%
23,290
+750
+3% +$32.4K
EXP icon
756
Eagle Materials
EXP
$6.4B
$1M ﹤0.01%
11,618
-1,707
-13% -$138K
VIRT icon
757
Virtu Financial
VIRT
$5.03B
$996K ﹤0.01%
43,270
-1,364
-3% -$34.2K
SNAP icon
758
Snap
SNAP
$8.95B
$993K ﹤0.01%
38,018
+6,212
+20% +$144K
BNY
759
Bank of New York Mellon
BNY
$110B
$992K ﹤0.01%
28,880
+3,154
+12% +$115K
MGM icon
760
MGM Resorts International
MGM
$11B
$979K ﹤0.01%
45,023
+7,585
+20% +$150K
EXPD icon
761
Expeditors International
EXPD
$24.1B
$977K ﹤0.01%
10,795
+251
+2% +$21.4K
LNT icon
762
Alliant Energy
LNT
$18.2B
$973K ﹤0.01%
18,833
-3,003
-14% -$157K
LMNX
763
DELISTED
Luminex Corp
LMNX
$971K ﹤0.01%
37,000
-500
-1% -$15.3K
TLND
764
DELISTED
Talend S.A. American Depositary Shares
TLND
$956K ﹤0.01%
+24,486
New +$948K
SHV icon
765
iShares 0-1 Year Treasury Bond ETF
SHV
$20.6B
$952K ﹤0.01%
8,596
+387
+5% +$42.8K
XSW icon
766
State Street SPDR S&P Software & Services ETF
XSW
$512M
$952K ﹤0.01%
7,978
+345
+5% +$40.5K
BKH icon
767
Black Hills Corp
BKH
$5.63B
$947K ﹤0.01%
17,709
+4,482
+34% +$256K
OVID icon
768
Ovid Therapeutics
OVID
$519M
$946K ﹤0.01%
164,736
+87,180
+112% +$583K
DOC icon
769
Healthpeak Properties
DOC
$14.3B
$943K ﹤0.01%
34,748
+14,559
+72% +$399K
FLG
770
Flagstar Bank National Association
FLG
$5.92B
$942K ﹤0.01%
37,962
-11,629
-23% -$332K
BCE icon
771
BCE
BCE
$21.7B
$938K ﹤0.01%
+22,626
New +$957K
CVET
772
DELISTED
Covetrus, Inc. Common Stock
CVET
$936K ﹤0.01%
38,365
+14,192
+59% +$306K
PS
773
DELISTED
Pluralsight, Inc. Class A Common Stock
PS
$933K ﹤0.01%
54,462
-13,770
-20% -$264K
LH icon
774
Labcorp
LH
$26.2B
$928K ﹤0.01%
5,735
-708
-11% -$112K
ORI icon
775
Old Republic International
ORI
$10.3B
$925K ﹤0.01%
62,788
-276
-0.4% -$4.41K
29 30
31
32 33

Similar funds

Parallax Volatility Advisers
Parallax Volatility Advisers San Francisco, California $38.6B AUM 45.89% 1-Year Est. Return
Credit Agricole
Credit Agricole Montrouge Cedex, France $38.1B AUM
Carson Wealth (CWM LLC)
Carson Wealth (CWM LLC) Omaha, Nebraska $38.1B AUM 19.66% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $37.7B AUM 34.44% 1-Year Est. Return
Fayez Sarofim & Co
Fayez Sarofim & Co Houston, Texas $39.1B AUM 15.14% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
First Manhattan
First Manhattan New York $36.1B AUM 11.5% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

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.