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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
ICE icon
26
Intercontinental Exchange
ICE
$84.9B
$216M 0.75%
1,815,688
+14,067
+0.8% +$1.62M
ABT icon
27
Abbott
ABT
$190B
$205M 0.71%
1,770,814
+73,799
+4% +$8.6M
SYK icon
28
Stryker
SYK
$134B
$204M 0.71%
784,562
+15,724
+2% +$4.02M
HD icon
29
Home Depot
HD
$353B
$201M 0.7%
631,133
-1,276
-0.2% -$406K
FISV
30
Fiserv Inc
FISV
$28B
$199M 0.69%
1,858,291
-751,525
-29% -$87.4M
AMT icon
31
American Tower
AMT
$79B
$193M 0.67%
715,099
+7,465
+1% +$1.9M
DIS icon
32
Walt Disney
DIS
$179B
$191M 0.66%
1,087,164
+36,522
+3% +$6.57M
TYL icon
33
Tyler Technologies
TYL
$13.2B
$187M 0.65%
413,566
+3,783
+0.9% +$1.61M
CPRT icon
34
Copart
CPRT
$27.2B
$187M 0.65%
5,670,384
+22,820
+0.4% +$707K
META icon
35
Meta Platforms (Facebook)
META
$1.53T
$185M 0.64%
531,451
-12,059
-2% -$3.87M
FAST icon
36
Fastenal
FAST
$60.1B
$181M 0.63%
6,956,120
-209,676
-3% -$5.45M
ACN icon
37
Accenture
ACN
$110B
$180M 0.62%
611,145
-8,962
-1% -$2.57M
JNJ icon
38
Johnson & Johnson
JNJ
$626B
$176M 0.61%
1,070,763
+142,493
+15% +$23.6M
COST icon
39
Costco
COST
$419B
$176M 0.61%
445,166
+14,392
+3% +$5.44M
LULU icon
40
lululemon athletica
LULU
$14.3B
$171M 0.59%
469,801
+19,311
+4% +$6.36M
WSO icon
41
Watsco Inc
WSO
$13.2B
$164M 0.57%
572,664
+8,305
+1% +$2.38M
TWLO icon
42
Twilio
TWLO
$39.3B
$161M 0.56%
407,777
+16,457
+4% +$5.71M
AON icon
43
Aon
AON
$75.6B
$145M 0.5%
607,410
+52,706
+10% +$12.9M
PGR icon
44
Progressive
PGR
$123B
$141M 0.49%
1,438,603
+51,649
+4% +$5.11M
OKTA icon
45
Okta
OKTA
$26.1B
$140M 0.48%
571,172
+22,406
+4% +$5.41M
UNH icon
46
UnitedHealth
UNH
$365B
$138M 0.48%
343,809
+10,511
+3% +$4.19M
ABBV icon
47
AbbVie
ABBV
$442B
$135M 0.47%
1,194,288
-23,935
-2% -$2.7M
ABMD
48
DELISTED
Abiomed Inc
ABMD
$132M 0.46%
421,329
+17,456
+4% +$5.36M
TREX icon
49
Trex
TREX
$5.07B
$127M 0.44%
1,240,887
+287,484
+30% +$29M
GWRE icon
50
Guidewire Software
GWRE
$14.7B
$126M 0.44%
1,118,819
+15,879
+1% +$1.65M
1
2
3 4 5

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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.