We are live on ! Find out more
William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+10.7%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
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
MSFT icon
1
Microsoft
MSFT
$2.94T
$994M 3.44%
3,669,050
-2,234
-0.1% -$568K
AMZN icon
2
Amazon
AMZN
$2.47T
$897M 3.11%
5,216,440
-9,240
-0.2% -$1.54M
AAPL icon
3
Apple
AAPL
$5.03T
$876M 3.04%
6,395,061
-401,258
-6% -$52M
IDXX icon
4
Idexx Laboratories
IDXX
$45B
$853M 2.95%
1,349,965
-40,231
-3% -$22.2M
PYPL icon
5
PayPal
PYPL
$50.6B
$643M 2.23%
2,207,242
-18,618
-0.8% -$4.92M
VEEV icon
6
Veeva Systems
VEEV
$33.7B
$575M 1.99%
1,850,186
-6,336
-0.3% -$1.77M
V icon
7
Visa
V
$703B
$541M 1.87%
2,313,853
-53,220
-2% -$12.2M
DXCM icon
8
DexCom
DXCM
$29.2B
$515M 1.79%
4,827,128
+80,476
+2% +$7.73M
GOOG icon
9
Alphabet (Google) Class C
GOOG
$4.11T
$490M 1.7%
3,909,180
-62,340
-2% -$7.43M
DOCU
10
DocuSign
DOCU
$11.2B
$464M 1.61%
1,658,304
-565
-0% -$126K
ZTS icon
11
Zoetis
ZTS
$32.7B
$454M 1.57%
2,435,977
+3,815
+0.2% +$663K
MA icon
12
Mastercard
MA
$500B
$437M 1.51%
1,195,602
+590
+0% +$219K
DHR icon
13
Danaher
DHR
$140B
$432M 1.5%
1,816,874
+12,848
+0.7% +$2.85M
SBUX icon
14
Starbucks
SBUX
$118B
$418M 1.45%
3,738,663
+16,535
+0.4% +$1.87M
ADBE icon
15
Adobe
ADBE
$105B
$398M 1.38%
678,904
-9,650
-1% -$4.97M
WDAY icon
16
Workday
WDAY
$41.6B
$348M 1.2%
1,456,354
+58,580
+4% +$14.1M
GOOGL icon
17
Alphabet (Google) Class A
GOOGL
$4.12T
$299M 1.04%
2,447,220
+11,000
+0.5% +$1.28M
ECL icon
18
Ecolab
ECL
$78.9B
$289M 1%
1,402,499
+56,714
+4% +$12.3M
KMX icon
19
CarMax
KMX
$8.54B
$268M 0.93%
2,074,992
+223,334
+12% +$27.6M
CRM icon
20
Salesforce
CRM
$154B
$252M 0.87%
1,033,067
-82,375
-7% -$19M
JPM icon
21
JPMorgan Chase
JPM
$930B
$252M 0.87%
1,619,726
-24,910
-2% -$3.91M
SPY icon
22
State Street SPDR S&P 500 ETF Trust
SPY
$778B
$228M 0.79%
533,436
+9,348
+2% +$3.9M
CSGP icon
23
CoStar Group
CSGP
$12.2B
$222M 0.77%
2,675,366
+48,906
+2% +$4.23M
POOL icon
24
Pool Corp
POOL
$7.08B
$222M 0.77%
482,978
+3,846
+0.8% +$1.62M
INTU icon
25
Intuit
INTU
$90.5B
$219M 0.76%
446,202
-5,258
-1% -$2.28M
1
2 3 4 5

Similar funds

SAM
Storebrand Asset Management Lysaker, Norway $34.8B AUM 25.49% 1-Year Est. Return
Daiwa Securities Group
Daiwa Securities Group Tokyo, Japan $34.8B AUM 20.7% 1-Year Est. Return
Chevy Chase Trust
Chevy Chase Trust Bethesda, Maryland $34.7B AUM 29.45% 1-Year Est. Return
VIA
Vanguard Investments Australia Victoria, Australia $34.6B AUM
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
Pacer Advisors
Pacer Advisors Malvern, Pennsylvania $35.6B AUM 18.19% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 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 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.