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
TDIV icon
1401
First Trust NASDAQ Technology Dividend Index Fund
TDIV
$4.48B
$212K ﹤0.01%
4,280
-186
-4% -$8.63K
LAZ icon
1402
Lazard
LAZ
$4.27B
$211K ﹤0.01%
+4,992
New +$189K
ELS icon
1403
Equity Lifestyle Properties
ELS
$12.6B
$210K ﹤0.01%
3,314
-41
-1% -$2.53K
UFPI icon
1404
UFP Industries
UFPI
$5.13B
$210K ﹤0.01%
3,783
– –
TAL icon
1405
TAL Education Group
TAL
$6.59B
$209K ﹤0.01%
2,929
-2,906
-50% -$210K
EWU icon
1406
iShares MSCI United Kingdom ETF
EWU
$4.13B
$208K ﹤0.01%
7,092
– –
TCS
1407
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
$208K ﹤0.01%
1,453
+53
+4% +$7.74K
TRN icon
1408
Trinity Industries
TRN
$2.33B
$207K ﹤0.01%
+7,826
New +$176K
BIL icon
1409
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$46.7B
$206K ﹤0.01%
2,252
-2
-0.1% -$183
SEE
1410
DELISTED
Sealed Air
SEE
$206K ﹤0.01%
+4,489
New +$195K
CELL
1411
DELISTED
PhenomeX Inc. Common Stock
CELL
$206K ﹤0.01%
+2,300
New +$193K
AFIB
1412
DELISTED
Acutus Medical Inc
AFIB
$205K ﹤0.01%
7,105
-9,620
-58% -$260K
SSRM icon
1413
SSR Mining
SSRM
$6.5B
$204K ﹤0.01%
10,133
– –
UHS icon
1414
Universal Health Services
UHS
$10.1B
$204K ﹤0.01%
+1,484
New +$185K
EDU icon
1415
New Oriental
EDU
$8.4B
$203K ﹤0.01%
1,094
-267
-20% -$44.9K
THO icon
1416
Thor Industries
THO
$4.17B
$203K ﹤0.01%
2,184
+17
+0.8% +$1.59K
TM icon
1417
Toyota
TM
$222B
$203K ﹤0.01%
+1,314
New +$184K
ARAV
1418
DELISTED
Aravive, Inc. Common Stock
ARAV
$203K ﹤0.01%
+36,000
New +$198K
AAL icon
1419
American Airlines Group
AAL
$10.1B
$202K ﹤0.01%
12,818
-23,531
-65% -$326K
BAB icon
1420
Invesco Taxable Municipal Bond ETF
BAB
$1.01B
$202K ﹤0.01%
6,036
– –
CINF icon
1421
Cincinnati Financial
CINF
$26.6B
$202K ﹤0.01%
+2,307
New +$184K
EVTC icon
1422
Evertec
EVTC
$1.9B
$201K ﹤0.01%
+5,122
New +$190K
IWC icon
1423
iShares Micro-Cap ETF
IWC
$1.51B
$201K ﹤0.01%
1,695
+1,620
+2,160% +$171K
PRI icon
1424
Primerica
PRI
$9.61B
$201K ﹤0.01%
+1,497
New +$188K
SXT icon
1425
Sensient Technologies
SXT
$5.63B
$200K ﹤0.01%
2,716
-1,995
-42% -$139K
55 56
57
58 59

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
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

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.