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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
+8.67%
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
$23B
AUM Growth
+$1.22B
Cap. Flow
-$156M
Cap. Flow %
-0.68%
Top 10 Hldgs %
22.7%
Holding
1,905
New
81
Increased
568
Reduced
855
Closed
91

Top Buys

Rank Stock Value
1
POOL icon
Pool Corp
POOL
+$43.2M
2
TEAM icon
Atlassian
TEAM
+$36.6M
3
NOVT icon
Novanta
NOVT
+$28.8M
4
PANW icon
Palo Alto Networks
PANW
+$23.2M
5
MSI icon
Motorola Solutions
MSI
+$20.1M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$103M
2
PYPL icon
PayPal
PYPL
+$28.4M
3
DIS icon
Walt Disney
DIS
+$26.7M
4
KMX icon
CarMax
KMX
+$25.2M
5
CRM icon
Salesforce
CRM
+$24.3M

Sector Composition

Rank Sector Weight
1 Technology 22.31%
2 Healthcare 19.82%
3 Financials 12.49%
4 Industrials 11.58%
5 Consumer Discretionary 8.46%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PIIIW icon
1776
P3 Health Partners Inc Warrant
PIIIW
$199K
$1.09K ﹤0.01%
7,765
– –
QQXT icon
1777
First Trust NASDAQ 100 ex-Technology Sector Index Fund
QQXT
$160M
$765 ﹤0.01%
+10
New +$762
FIW icon
1778
First Trust Water ETF
FIW
$1.92B
$724 ﹤0.01%
9
– –
LABU icon
1779
Direxion Daily S&P Biotech Bull 3X ETF
LABU
$652M
$707 ﹤0.01%
+5
New +$697
UPRO icon
1780
ProShares UltraPro S&P 500
UPRO
$5.74B
$600 ﹤0.01%
18
– –
EWW icon
1781
iShares MSCI Mexico ETF
EWW
$1.9B
$544 ﹤0.01%
+11
New +$554
EBND icon
1782
State Street SPDR Bloomberg Emerging Markets Local Bond ETF
EBND
$2.27B
$452 ﹤0.01%
22
– –
BF.A icon
1783
Brown-Forman Class A
BF.A
$13B
$395 ﹤0.01%
+6
New +$410
LQDH icon
1784
iShares Interest Rate Hedged Corporate Bond ETF
LQDH
$540M
$362 ﹤0.01%
4
-20
-83% -$1.81K
PSR icon
1785
Invesco Active US Real Estate Fund
PSR
$59.2M
$348 ﹤0.01%
4
– –
SHYG icon
1786
iShares 0-5 Year High Yield Corporate Bond ETF
SHYG
$7.61B
$327 ﹤0.01%
8
-5,490
-100% -$225K
IXC icon
1787
iShares Global Energy ETF
IXC
$2.74B
$273 ﹤0.01%
+7
New +$274
BUZZ icon
1788
VanEck Social Sentiment ETF
BUZZ
$101M
$267 ﹤0.01%
22
-3
-12% -$39
FWONA icon
1789
Liberty Media Series A
FWONA
$23.7B
$160 ﹤0.01%
3
– –
SRS icon
1790
ProShares UltraShort Real Estate
SRS
$16.1M
$91 ﹤0.01%
1
– –
AAP icon
1791
Advance Auto Parts
AAP
$3.23B
– –
-1,321
Closed -$207K
AFK icon
1792
VanEck Africa Index ETF
AFK
$104M
– –
-6,775
Closed -$102K
AFMD
1793
DELISTED
Affimed
AFMD
– –
-1,150
Closed -$24K
AIEQ icon
1794
Amplify AI Powered Equity ETF
AIEQ
$124M
– –
-1
Closed –
AOM icon
1795
iShares Core Moderate Allocation ETF
AOM
$1.77B
– –
-10
Closed –
AVTR icon
1796
Avantor
AVTR
$9.42B
– –
-13,902
Closed -$272K
BEAM icon
1797
Beam Therapeutics
BEAM
$2.76B
– –
-5,292
Closed -$252K
BGY icon
1798
BlackRock Enhanced International Dividend Trust
BGY
$532M
– –
-17,900
Closed -$80K
BIRD icon
1799
Smartbird Inc
BIRD
$30.2M
– –
-1,123
Closed -$68K
BLND icon
1800
Blend Labs
BLND
$331M
– –
-144,115
Closed -$318K
70 71
72
73 74

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William Blair & Company's Q4 2022 Portfolio in Review

As of Q4 2022, William Blair & Company held 1,905 positions worth $23B, up 5.6% from $21.8B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q4 2022 filing shows 81 new, 568 increased, 855 reduced and 91 closed positions. Its largest new stake was Atlassian: 230,078 shares worth $29.6M. The largest sale was Abiomed Inc, an estimated $103M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2022 buy was Atlassian: 230,078 shares worth $29.6M.
  • William Blair & Company added most to Pool Corp in Q4 2022, an estimated $43.2M increase.
  • William Blair & Company's biggest Q4 2022 reduction was PayPal, cutting an estimated $28.4M.
  • William Blair & Company fully exited Abiomed Inc in Q4 2022, selling an estimated $103M.
  • William Blair & Company's ten largest holdings make up 23% of its $23B portfolio in Q4 2022.
  • William Blair & Company opened 81 new positions and closed 91 in Q4 2022.
  • William Blair & Company's portfolio value rose 5.6% quarter-over-quarter to $23B.

Based on William Blair & Company's 13F filing for Q4 2022, filed 10 Feb 2023.