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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
(+1.8%)
Cap. Flow
+$281M
Cap. Flow
% of AUM
0.96%
Top 10 Holdings %
Top 10 Hldgs %
23.58%
Holding
1,987
New
99
Increased
752
Reduced
666
Closed
108
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Airbnb
ABNB
|
+$45.2M |
| 2 |
Chewy
CHWY
|
+$31.5M |
| 3 |
Unity
U
|
+$23.3M |
| 4 |
Ryan Specialty Holdings
RYAN
|
+$22.4M |
| 5 |
Amazon
AMZN
|
+$21.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Idexx Laboratories
IDXX
|
+$37.7M |
| 2 |
General Dynamics
GD
|
+$33.5M |
| 3 |
Ecolab
ECL
|
+$31.7M |
| 4 |
Johnson & Johnson
JNJ
|
+$20.9M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
1026
Franco-Nevada
FNV
$44.7B
| $746K | ﹤0.01% |
5,740
+605
| +12% | +$88.7K |
|
1027
Pan American Silver
PAAS
$19.9B
| $734K | ﹤0.01% |
31,549
-1,502
| -5% | -$39.2K |
|
1028
Sun Life Financial
SLF
$44.8B
| $732K | ﹤0.01% |
14,232
-56
| -0.4% | -$2.88K |
|
|
RKLBW
1029
DELISTED
Rocket Lab USA, Inc. Warrant
RKLBW
| $732K | ﹤0.01% |
+145,228
| New | +$515K |
|
1030
Actinium Pharmaceuticals
ATNM
$30.2M
| $730K | ﹤0.01% |
82,366
+30,900
| +60% | +$215K |
|
1031
Liberty Broadband Class C
LBRDK
$5.29B
| $729K | ﹤0.01% |
4,223
-840
| -17% | -$151K |
|
1032
Ross Stores
ROST
$78.6B
| $729K | ﹤0.01% |
6,700
+134
| +2% | +$16.1K |
|
|
AMJ
1033
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $724K | ﹤0.01% |
39,869
-117
| -0.3% | -$2.12K |
|
1034
GameStop
GME
$8.33B
| $721K | ﹤0.01% |
16,440
-972
| -6% | -$44.4K |
|
1035
Invesco Dorsey Wright Emerging Markets Momentum ETF
PIE
$250M
| $720K | ﹤0.01% |
29,620
+3,300
| +13% | +$85.3K |
|
1036
BioNTech
BNTX
$23.1B
| $718K | ﹤0.01% |
2,630
| – | – |
|
1037
Howard Hughes
HHH
$4.04B
| $714K | ﹤0.01% |
8,532
| – | – |
|
1038
JPMorgan BetaBuilders Japan ETF
BBJP
$19.2B
| $713K | ﹤0.01% |
12,132
-990
| -8% | -$57.4K |
|
|
AZPN
1039
DELISTED
ASPEN TECHNOLOGY INC
AZPN
| $713K | ﹤0.01% |
5,803
-5,034
| -46% | -$619K |
|
1040
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.44B
| $711K | ﹤0.01% |
13,301
+1
| +0% | +$57 |
|
1041
National Grid
NGG
$81.6B
| $709K | ﹤0.01% |
13,448
-181
| -1% | -$10.4K |
|
1042
SiTime
SITM
$20.7B
| $704K | ﹤0.01% |
3,449
| – | – |
|
|
EAR
1043
DELISTED
Eargo, Inc. Common Stock
EAR
| $703K | ﹤0.01% |
5,220
+4,383
| +524% | +$2.34M |
|
1044
Sonos
SONO
$1.96B
| $699K | ﹤0.01% |
21,590
+4,950
| +30% | +$178K |
|
1045
Algonquin Power & Utilities
AQN
$4.48B
| $696K | ﹤0.01% |
47,456
| – | – |
|
1046
Western Union
WU
$2.34B
| $695K | ﹤0.01% |
34,351
+609
| +2% | +$13.5K |
|
1047
Conagra Brands
CAG
$7.39B
| $677K | ﹤0.01% |
19,978
-103,815
| -84% | -$3.51M |
|
1048
Zions Bancorporation
ZION
$10.5B
| $676K | ﹤0.01% |
10,929
+2,290
| +27% | +$126K |
|
1049
PENN Entertainment
PENN
$2.53B
| $675K | ﹤0.01% |
9,316
+144
| +2% | +$10.6K |
|
1050
PetMed Express
PETS
$43.4M
| $675K | ﹤0.01% |
+25,129
| New | +$724K |
|
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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.