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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
+10.7%
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
$28.9B
AUM Growth
+$2.35B
Cap. Flow
-$98.3M
Cap. Flow %
-0.34%
Top 10 Hldgs %
23.73%
Holding
1,960
New
105
Increased
655
Reduced
787
Closed
72

Top Buys

Rank Stock Value
1
BALL icon
Ball Corp
BALL
+$39.8M
2
ABNB icon
Airbnb
ABNB
+$37.1M
3
GNRC icon
Generac Holdings
GNRC
+$34.4M
4
U icon
Unity
U
+$29.3M
5
TREX icon
Trex
TREX
+$29M

Top Sells

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$87.4M
2
TDOC icon
Teladoc Health
TDOC
+$65.6M
3
VRSK icon
Verisk Analytics
VRSK
+$65M
4
AAPL icon
Apple
AAPL
+$52M
5
ACWV icon
iShares MSCI Global Min Vol Factor ETF
ACWV
+$46.5M

Sector Composition

Rank Sector Weight
1 Technology 25.7%
2 Healthcare 19.69%
3 Financials 11.7%
4 Consumer Discretionary 10.72%
5 Industrials 9.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NATI
901
DELISTED
National Instruments Corp
NATI
$1.04M ﹤0.01%
24,576
-5,240
-18% -$221K
WMB icon
902
Williams Companies
WMB
$90.1B
$1.03M ﹤0.01%
38,955
-3,677
-9% -$94.1K
ESGV icon
903
Vanguard ESG US Stock ETF
ESGV
$13.7B
$1.03M ﹤0.01%
12,906
+1
+0% +$78
ISTB icon
904
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.14B
$1.03M ﹤0.01%
20,104
– –
REGN icon
905
Regeneron Pharmaceuticals
REGN
$82.2B
$1.03M ﹤0.01%
1,842
+59
+3% +$29.9K
HDB icon
906
HDFC Bank
HDB
$119B
$1.02M ﹤0.01%
28,004
-674
-2% -$24.7K
SUI icon
907
Sun Communities
SUI
$14.4B
$1.02M ﹤0.01%
5,957
-7
-0.1% -$1.16K
USFR
908
DELISTED
WisdomTree Bloomberg Floating Rate Treasury Fund
USFR
$1.02M ﹤0.01%
40,571
-1,604
-4% -$40.3K
MTX icon
909
Minerals Technologies
MTX
$2.25B
$1.02M ﹤0.01%
12,945
-2,035
-14% -$165K
FDS icon
910
Factset
FDS
$9.89B
$1.01M ﹤0.01%
3,009
+7
+0.2% +$2.29K
TTD icon
911
Trade Desk
TTD
$6.84B
$1.01M ﹤0.01%
13,055
+655
+5% +$41.9K
SHV icon
912
iShares 0-1 Year Treasury Bond ETF
SHV
$20.6B
$1.01M ﹤0.01%
9,130
-2,392
-21% -$264K
EEFT icon
913
Euronet Worldwide
EEFT
$2.66B
$1M ﹤0.01%
7,425
+1,293
+21% +$188K
DHS icon
914
WisdomTree US High Dividend Fund
DHS
$1.6B
$1M ﹤0.01%
12,830
-400
-3% -$31.6K
EFV icon
915
iShares MSCI EAFE Value ETF
EFV
$30.1B
$1M ﹤0.01%
19,328
+629
+3% +$33.3K
TWO
916
Two Harbors Investment
TWO
$1.27B
$998K ﹤0.01%
32,994
-312
-0.9% -$9.29K
CIBR icon
917
First Trust NASDAQ Cybersecurity ETF
CIBR
$16B
$997K ﹤0.01%
21,323
+489
+2% +$21.7K
DGRS icon
918
WisdomTree Trust WisdomTree US SmallCap Quality Dividend Growth Fund
DGRS
$415M
$995K ﹤0.01%
21,410
-14,073
-40% -$663K
OSK icon
919
Oshkosh
OSK
$9.61B
$994K ﹤0.01%
7,975
+24
+0.3% +$3.03K
MBB icon
920
iShares MBS ETF
MBB
$39.2B
$987K ﹤0.01%
9,119
-3,986
-30% -$432K
TFI icon
921
State Street SPDR Nuveen ICE Municipal Bond ETF
TFI
$3.18B
$987K ﹤0.01%
18,940
– –
HQY icon
922
HealthEquity
HQY
$8.82B
$981K ﹤0.01%
12,190
-992
-8% -$75.6K
QTEC icon
923
First Trust NASDAQ-100 Technology Index Fund
QTEC
$4.92B
$981K ﹤0.01%
6,170
– –
EXPE icon
924
Expedia Group
EXPE
$39.1B
$980K ﹤0.01%
5,986
-1,291
-18% -$221K
O icon
925
Realty Income
O
$59.2B
$980K ﹤0.01%
15,154
+351
+2% +$23.1K
35 36
37
38 39

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William Blair & Company's Q2 2021 Portfolio in Review

As of Q2 2021, William Blair & Company held 1,960 positions worth $28.9B, up 8.9% from $26.5B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2021 filing shows 105 new, 655 increased, 787 reduced and 72 closed positions. Its largest new stake was Luminar Technologies: 36,860 shares worth $12.1M. The largest sale was Fiserv Inc, an estimated $87.4M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q2 2021 buy was Luminar Technologies: 36,860 shares worth $12.1M.
  • William Blair & Company added most to Ball Corp in Q2 2021, an estimated $39.8M increase.
  • William Blair & Company's biggest Q2 2021 reduction was Fiserv Inc, cutting an estimated $87.4M.
  • William Blair & Company fully exited RealPage, Inc. in Q2 2021, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 24% of its $28.9B portfolio in Q2 2021.
  • William Blair & Company opened 105 new positions and closed 72 in Q2 2021.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $28.9B.

Based on William Blair & Company's 13F filing for Q2 2021, filed 12 Aug 2021.