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
CYBR
776
DELISTED
CyberArk
CYBR
$1.28M ﹤0.01%
7,922
-5,407
-41% -$629K
EEMA icon
777
iShares MSCI Emerging Markets Asia ETF
EEMA
$872M
$1.27M ﹤0.01%
14,543
+9,975
+218% +$815K
PLD icon
778
Prologis
PLD
$134B
$1.27M ﹤0.01%
12,750
+1,239
+11% +$125K
EFOR
779
Everforth Inc
EFOR
$1.37B
$1.27M ﹤0.01%
15,190
-2,032
-12% -$156K
MNST icon
780
Monster Beverage
MNST
$91.4B
$1.26M ﹤0.01%
54,604
+1,596
+3% +$33.5K
NATI
781
DELISTED
National Instruments Corp
NATI
$1.25M ﹤0.01%
28,514
-3,522
-11% -$131K
AZTA icon
782
Azenta
AZTA
$1.48B
$1.24M ﹤0.01%
18,315
+675
+4% +$42.1K
ORI icon
783
Old Republic International
ORI
$10.3B
$1.24M ﹤0.01%
62,739
-49
-0.1% -$861
RYN icon
784
Rayonier
RYN
$6.54B
$1.23M ﹤0.01%
46,212
-4,492
-9% -$115K
MBB icon
785
iShares MBS ETF
MBB
$39.2B
$1.23M ﹤0.01%
11,170
-19
-0.2% -$2.09K
XSW icon
786
State Street SPDR S&P Software & Services ETF
XSW
$514M
$1.23M ﹤0.01%
7,978
– –
XLP icon
787
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.9B
$1.23M ﹤0.01%
18,186
+1,139
+7% +$75.3K
FLG
788
Flagstar Bank National Association
FLG
$5.92B
$1.23M ﹤0.01%
38,760
+798
+2% +$22K
CIVB icon
789
Civista Bancshares
CIVB
$595M
$1.23M ﹤0.01%
69,890
– –
PBH icon
790
Prestige Consumer Healthcare
PBH
$2.42B
$1.22M ﹤0.01%
35,004
+1,240
+4% +$44K
ANSS
791
DELISTED
Ansys
ANSS
$1.21M ﹤0.01%
3,321
+35
+1% +$11.7K
KEYS icon
792
Keysight
KEYS
$60.3B
$1.2M ﹤0.01%
9,115
+143
+2% +$16.5K
CDXS icon
793
Codexis
CDXS
$177M
$1.2M ﹤0.01%
55,127
+100
+0.2% +$1.65K
DBEF icon
794
Xtrackers MSCI EAFE Hedged Equity ETF
DBEF
$9.45B
$1.2M ﹤0.01%
35,767
– –
PLTR icon
795
Palantir
PLTR
$432B
$1.19M ﹤0.01%
50,689
+25,821
+104% +$462K
BF.B icon
796
Brown-Forman Class B
BF.B
$12.8B
$1.19M ﹤0.01%
+15,022
New +$1.16M
CVET
797
DELISTED
Covetrus, Inc. Common Stock
CVET
$1.19M ﹤0.01%
41,475
+3,110
+8% +$83.9K
MLM icon
798
Martin Marietta Materials
MLM
$32.9B
$1.18M ﹤0.01%
4,169
-153
-4% -$40.7K
PCAR icon
799
PACCAR
PCAR
$68.7B
$1.17M ﹤0.01%
20,342
+1,881
+10% +$110K
INSP icon
800
Inspire Medical Systems
INSP
$1.68B
$1.17M ﹤0.01%
6,192
+1,922
+45% +$314K
30 31
32
33 34

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 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.