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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
WRK
751
DELISTED
WestRock Company
WRK
$1.68M 0.01%
31,619
+253
+0.8% +$14.2K
CFG icon
752
Citizens Financial Group
CFG
$31.2B
$1.67M 0.01%
36,416
+381
+1% +$18K
SUSC icon
753
iShares ESG Aware USD Corporate Bond ETF
SUSC
$1.29B
$1.66M 0.01%
59,820
-5,240
-8% -$143K
CDK
754
DELISTED
CDK Global, Inc.
CDK
$1.66M 0.01%
33,359
-3,431
-9% -$182K
ALL icon
755
Allstate
ALL
$65.9B
$1.65M 0.01%
12,675
-1,129
-8% -$146K
IEF icon
756
iShares 7-10 Year Treasury Bond ETF
IEF
$47.3B
$1.65M 0.01%
14,295
-1,434
-9% -$164K
NTAP icon
757
NetApp
NTAP
$40.2B
$1.65M 0.01%
20,129
+14,525
+259% +$1.13M
IVZ icon
758
Invesco
IVZ
$14.3B
$1.64M 0.01%
61,443
-254
-0.4% -$6.92K
ECOM
759
DELISTED
CHANNELADVISOR CORPORATION
ECOM
$1.64M 0.01%
67,001
+11,716
+21% +$282K
TLND
760
DELISTED
Talend S.A. American Depositary Shares
TLND
$1.64M 0.01%
25,024
-4,980
-17% -$322K
WYNN icon
761
Wynn Resorts
WYNN
$10.5B
$1.64M 0.01%
13,406
+6,251
+87% +$796K
PSX icon
762
Phillips 66
PSX
$92.8B
$1.63M 0.01%
19,019
-5,557
-23% -$469K
TLT icon
763
iShares 20+ Year Treasury Bond ETF
TLT
$40.8B
$1.6M 0.01%
11,116
-3,097
-22% -$432K
WSM icon
764
Williams-Sonoma
WSM
$28.5B
$1.6M 0.01%
20,100
+110
+0.6% +$9.36K
XSD icon
765
State Street SPDR S&P Semiconductor ETF
XSD
$2.88B
$1.59M 0.01%
8,290
– –
BNY
766
Bank of New York Mellon
BNY
$110B
$1.59M 0.01%
31,095
-1,655
-5% -$82.8K
AVY icon
767
Avery Dennison
AVY
$13.6B
$1.59M 0.01%
7,545
+370
+5% +$77.7K
PLAY icon
768
Dave & Buster's
PLAY
$370M
$1.58M 0.01%
+39,021
New +$1.69M
VVNT
769
DELISTED
Vivint Smart Home, Inc. Class A Common Stock
VVNT
$1.58M 0.01%
120,037
-2,725
-2% -$36.5K
WTFC icon
770
Wintrust Financial
WTFC
$11B
$1.57M 0.01%
20,816
-205
-1% -$16K
BAND
771
Bandwidth Inc
BAND
$1.74B
$1.57M 0.01%
11,393
-1,442
-11% -$181K
TRS icon
772
TriMas Corp
TRS
$1.39B
$1.55M 0.01%
51,231
+871
+2% +$27.6K
MMSI icon
773
Merit Medical Systems
MMSI
$5.4B
$1.55M 0.01%
23,994
– –
RILY icon
774
BRC Group Holdings
RILY
$303M
$1.55M 0.01%
20,510
+12,854
+168% +$900K
AVB icon
775
AvalonBay Communities
AVB
$26.3B
$1.54M 0.01%
7,402
-159
-2% -$31.8K
29 30
31
32 33

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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.