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
OSW icon
1576
OneSpaWorld
OSW
$2.7B
$112K ﹤0.01%
11,205
– –
OTRK
1577
DELISTED
Ontrak
OTRK
$111K ﹤0.01%
123
-2,940
-96% -$5.25M
FAX
1578
abrdn Asia-Pacific Income Fund
FAX
$604M
$110K ﹤0.01%
4,433
– –
ACOR
1579
DELISTED
Acorda Therapeutics
ACOR
$110K ﹤0.01%
1,192
– –
ITM icon
1580
VanEck Intermediate Muni ETF
ITM
$2.13B
$108K ﹤0.01%
2,117
-545
-20% -$28.3K
VDE icon
1581
Vanguard Energy ETF
VDE
$10.4B
$108K ﹤0.01%
1,466
+745
+103% +$52K
DIV icon
1582
Global X SuperDividend US ETF
DIV
$776M
$107K ﹤0.01%
+5,500
New +$109K
IDU icon
1583
iShares US Utilities ETF
IDU
$1.37B
$107K ﹤0.01%
1,360
+150
+12% +$12.4K
ILF icon
1584
iShares Latin America 40 ETF
ILF
$3.71B
$107K ﹤0.01%
4,040
– –
TACO
1585
DELISTED
Del Taco Restaurants, Inc. Common Stock
TACO
$107K ﹤0.01%
12,300
– –
DDG
1586
DELISTED
Proshares Short Oil & Gas
DDG
$107K ﹤0.01%
6,520
– –
IMH
1587
DELISTED
Impac Mortgage Holdings Inc.
IMH
$104K ﹤0.01%
+73,470
New +$118K
AFMD
1588
DELISTED
Affimed
AFMD
$102K ﹤0.01%
1,650
– –
EWG icon
1589
iShares MSCI Germany ETF
EWG
$1.67B
$102K ﹤0.01%
3,112
-2
-0.1% -$69
SCHR
1590
Schwab Intermediately-Term US Treasury ETF
SCHR
$13.3B
$101K ﹤0.01%
3,574
-3,808
-52% -$109K
SPIB icon
1591
State Street SPDR Portfolio Intermediate Term Corporate Bond ETF
SPIB
$11.5B
$98K ﹤0.01%
2,695
-490
-15% -$18K
SPMD icon
1592
State Street SPDR Portfolio S&P 400 Mid Cap ETF
SPMD
$19B
$98K ﹤0.01%
2,124
+552
+35% +$26.1K
AWRE icon
1593
Aware
AWRE
$26M
$95K ﹤0.01%
23,664
– –
NG icon
1594
NovaGold Resources
NG
$3.45B
$95K ﹤0.01%
13,790
-17
-0.1% -$126
TOVX icon
1595
Theriva Biologics
TOVX
$11M
$94K ﹤0.01%
815
+130
+19% +$16.2K
PSQ icon
1596
ProShares Short QQQ
PSQ
$642M
$92K ﹤0.01%
1,510
+500
+50% +$29.8K
GOCO
1597
DELISTED
GoHealth
GOCO
$91K ﹤0.01%
1,213
+312
+35% +$33K
FBT icon
1598
First Trust NYSE Arca Biotechnology Index Fund
FBT
$2.81B
$90K ﹤0.01%
543
+250
+85% +$42.7K
EDU icon
1599
New Oriental
EDU
$8.49B
$89K ﹤0.01%
4,339
+2,115
+95% +$67.1K
GBIL icon
1600
Goldman Sachs Access Treasury 0-1 Year ETF
GBIL
$7.59B
$89K ﹤0.01%
886
– –
62 63
64
65 66

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.