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
+13.98%
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
$27.3B
AUM Growth
+$3.7B
Cap. Flow
+$865M
Cap. Flow %
3.17%
Top 10 Hldgs %
25.38%
Holding
1,900
New
178
Increased
749
Reduced
623
Closed
72

Top Buys

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$77.8M
2
GD icon
General Dynamics
GD
+$49.6M
3
ROK icon
Rockwell Automation
ROK
+$43.3M
4
LMBS icon
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
+$32.3M
5
JPM icon
JPMorgan Chase
JPM
+$30.6M

Top Sells

Rank Stock Value
1
WORK
Slack Technologies, Inc.
WORK
+$24.2M
2
NTRS icon
Northern Trust
NTRS
+$24.1M
3
BKNG icon
Booking.com
BKNG
+$22.5M
4
EXEL icon
Exelixis
EXEL
+$17.5M
5
DOCU
DocuSign
DOCU
+$15M

Sector Composition

Rank Sector Weight
1 Technology 27.82%
2 Healthcare 18.6%
3 Financials 11.15%
4 Consumer Discretionary 10.38%
5 Industrials 8.96%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
THRY icon
1451
Thryv Holdings
THRY
$92M
$178K ﹤0.01%
+13,195
New +$140K
VMD icon
1452
Viemed Healthcare
VMD
$353M
$178K ﹤0.01%
23,000
– –
MUFG icon
1453
Mitsubishi UFJ Financial
MUFG
$257B
$177K ﹤0.01%
40,000
-3,785
-9% -$16.1K
SCWX
1454
DELISTED
SecureWorks Corp Class A Common Stock
SCWX
$176K ﹤0.01%
12,354
– –
SHLX
1455
DELISTED
Shell Midstream Partners, L.P.
SHLX
$176K ﹤0.01%
17,456
-1,150
-6% -$11.2K
HEDJ icon
1456
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.87B
$170K ﹤0.01%
5,132
-1,328
-21% -$42.6K
FXNC icon
1457
First National Corp
FXNC
$288M
$169K ﹤0.01%
+10,000
New +$151K
FPX icon
1458
First Trust US Equity Opportunities ETF
FPX
$1.53B
$167K ﹤0.01%
1,410
+420
+42% +$45.5K
EUFN icon
1459
iShares MSCI Europe Financials ETF
EUFN
$4.29B
$166K ﹤0.01%
9,483
-490
-5% -$7.75K
IMTB icon
1460
iShares Core 5-10 Year USD Bond ETF
IMTB
$275M
$165K ﹤0.01%
3,145
– –
UAA icon
1461
Under Armour
UAA
$2.26B
$165K ﹤0.01%
9,585
+1,024
+12% +$15.6K
ICF icon
1462
iShares Select U.S. REIT ETF
ICF
$2.09B
$163K ﹤0.01%
3,020
– –
ARDX icon
1463
Ardelyx
ARDX
$1.03B
$162K ﹤0.01%
25,000
– –
ATOM icon
1464
Atomera
ATOM
$216M
$161K ﹤0.01%
+10,000
New +$104K
OOMA icon
1465
Ooma
OOMA
$553M
$161K ﹤0.01%
11,162
-800
-7% -$11.8K
RDVY icon
1466
First Trust Rising Dividend Achievers ETF
RDVY
$25.7B
$160K ﹤0.01%
4,000
-271
-6% -$9.86K
CRON
1467
Cronos Group
CRON
$1.17B
$159K ﹤0.01%
22,967
– –
HZN
1468
DELISTED
Horizon Global Corporation
HZN
$159K ﹤0.01%
+18,500
New +$131K
RPG icon
1469
Invesco S&P 500 Pure Growth ETF
RPG
$2.07B
$158K ﹤0.01%
4,835
-250
-5% -$7.63K
PE
1470
DELISTED
PARSLEY ENERGY INC
PE
$158K ﹤0.01%
11,137
+939
+9% +$11.2K
FDUS icon
1471
Fidus Investment
FDUS
$748M
$157K ﹤0.01%
11,992
-9,848
-45% -$117K
EWA icon
1472
iShares MSCI Australia ETF
EWA
$1.46B
$156K ﹤0.01%
6,534
– –
DISCK
1473
DELISTED
Discovery, Inc. Series C Common Stock
DISCK
$156K ﹤0.01%
5,949
-1,395
-19% -$30.6K
EWC icon
1474
iShares MSCI Canada ETF
EWC
$6.51B
$155K ﹤0.01%
5,022
– –
STIP icon
1475
iShares 0-5 Year TIPS Bond ETF
STIP
$15.9B
$155K ﹤0.01%
1,482
+8
+0.5% +$830
57 58
59
60 61

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 Asset Management
Nomura Asset Management Tokyo, Japan $38.8B AUM 30.94% 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
Grantham, Mayo, Van Otterloo & Co (GMO)
Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $39.1B AUM 28.69% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return

William Blair & Company's Q4 2020 Portfolio in Review

As of Q4 2020, William Blair & Company held 1,900 positions worth $27.3B, up 16% from $23.6B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company deployed $865M of net new capital in Q4 2020, opening 178 new positions and adding to 749 existing holdings. Its largest new stake was Seagen Inc. Common Stock: 91,539 shares worth $16M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Healthcare and Financials.

On the sell side, the largest reduction was Slack Technologies, Inc., an estimated $24.2M trimmed.

  • William Blair & Company's largest Q4 2020 buy was Seagen Inc. Common Stock: 91,539 shares worth $16M.
  • William Blair & Company added most to Splunk Inc in Q4 2020, an estimated $77.8M increase.
  • William Blair & Company's biggest Q4 2020 reduction was Slack Technologies, Inc., cutting an estimated $24.2M.
  • William Blair & Company fully exited Dunkin' Brands Group, Inc. in Q4 2020, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 25% of its $27.3B portfolio in Q4 2020.
  • William Blair & Company opened 178 new positions and closed 72 in Q4 2020.
  • William Blair & Company's portfolio value rose 16% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q4 2020, filed 9 Feb 2021.