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
+1.99%
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
$29.4B
AUM Growth
+$519M
Cap. Flow
+$281M
Cap. Flow %
0.96%
Top 10 Hldgs %
23.58%
Holding
1,987
New
99
Increased
752
Reduced
666
Closed
108

Top Buys

Rank Stock Value
1
ABNB icon
Airbnb
ABNB
+$45.2M
2
CHWY icon
Chewy
CHWY
+$31.5M
3
U icon
Unity
U
+$23.3M
4
RYAN icon
Ryan Specialty Holdings
RYAN
+$22.4M
5
AMZN icon
Amazon
AMZN
+$21.5M

Top Sells

Rank Stock Value
1
IDXX icon
Idexx Laboratories
IDXX
+$37.7M
2
GD icon
General Dynamics
GD
+$33.5M
3
ECL icon
Ecolab
ECL
+$31.7M
4
JNJ icon
Johnson & Johnson
JNJ
+$20.9M
5
UBER icon
Uber
UBER
+$19.2M

Sector Composition

Rank Sector Weight
1 Technology 26.19%
2 Healthcare 19.81%
3 Financials 11.61%
4 Consumer Discretionary 10.68%
5 Industrials 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ANGL icon
1851
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.11B
– –
-23
Closed -$1K
ARI
1852
Apollo Commercial Real Estate
ARI
$885M
– –
-2,000
Closed -$32K
ASB icon
1853
Associated Banc-Corp
ASB
$6.07B
– –
-10,619
Closed -$217K
ASMB icon
1854
Assembly Biosciences
ASMB
$536M
– –
-1,333
Closed -$62K
AWI icon
1855
Armstrong World Industries
AWI
$7.75B
– –
-3,482
Closed -$373K
BBAG icon
1856
JPMorgan BetaBuilders US Aggregate Bond ETF
BBAG
$996M
– –
-71
Closed -$4K
BBRE icon
1857
JPMorgan BetaBuilders MSCI US REIT ETF
BBRE
$1.25B
$0 ﹤0.01%
5
– –
BE icon
1858
Bloom Energy
BE
$69.9B
– –
-9,268
Closed -$249K
BFH icon
1859
Bread Financial
BFH
$4.46B
– –
-2,867
Closed -$238K
BIPC icon
1860
Brookfield Infrastructure
BIPC
$4.93B
– –
-4,562
Closed -$229K
BKH icon
1861
Black Hills Corp
BKH
$5.58B
– –
-3,574
Closed -$235K
BOH icon
1862
Bank of Hawaii
BOH
$3.13B
– –
-5,138
Closed -$433K
BZUN
1863
Baozun
BZUN
$164M
– –
-8,444
Closed -$299K
CACI icon
1864
CACI
CACI
$15B
– –
-1,085
Closed -$277K
CGNT icon
1865
Cognyte Software
CGNT
$675M
– –
-11,960
Closed -$293K
CLNE icon
1866
Clean Energy Fuels
CLNE
$384M
– –
-22,950
Closed -$233K
CLSK icon
1867
CleanSpark
CLSK
$3.13B
– –
-10,100
Closed -$168K
CVLT icon
1868
Commault Systems
CVLT
$5.87B
– –
-4,300
Closed -$336K
DSTL icon
1869
Distillate US Fundamental Stability & Value ETF
DSTL
$2.05B
– –
-110
Closed -$5K
EDIV icon
1870
State Street SPDR S&P Emerging Markets Dividend ETF
EDIV
$1.22B
– –
-1,117
Closed -$33K
KYNB
1871
Kyntra Bio
KYNB
$28.7M
– –
-2,894
Closed -$1.93M
FIZZ icon
1872
National Beverage
FIZZ
$2.9B
– –
-6,776
Closed -$320K
FXG icon
1873
First Trust Consumer Staples AlphaDEX Fund
FXG
$230M
– –
-500
Closed -$28K
GXC icon
1874
State Street SPDR S&P China ETF
GXC
$474M
– –
-50
Closed -$7K
HBI
1875
DELISTED
Hanesbrands
HBI
– –
-14,546
Closed -$272K
73 74
75
76 77

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 Asset Management
Nomura Asset Management Tokyo, Japan $38.8B AUM 30.94% 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
Grantham, Mayo, Van Otterloo & Co (GMO)
Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $39.1B AUM 28.69% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return

William Blair & Company's Q3 2021 Portfolio in Review

As of Q3 2021, William Blair & Company held 1,987 positions worth $29.4B, up 1.8% from $28.9B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q3 2021 filing shows 99 new, 752 increased, 666 reduced and 108 closed positions. Its largest new stake was Ryan Specialty Holdings: 709,555 shares worth $24M. The largest sale was Idexx Laboratories, an estimated $37.7M.

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 Q3 2021 buy was Ryan Specialty Holdings: 709,555 shares worth $24M.
  • William Blair & Company added most to Airbnb in Q3 2021, an estimated $45.2M increase.
  • William Blair & Company's biggest Q3 2021 reduction was Idexx Laboratories, cutting an estimated $37.7M.
  • William Blair & Company fully exited Slack Technologies, Inc. in Q3 2021, selling an estimated $13.8M.
  • William Blair & Company's ten largest holdings make up 24% of its $29.4B portfolio in Q3 2021.
  • William Blair & Company opened 99 new positions and closed 108 in Q3 2021.
  • William Blair & Company's portfolio value rose 1.8% quarter-over-quarter to $29.4B.

Based on William Blair & Company's 13F filing for Q3 2021, filed 12 Nov 2021.