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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
ELD icon
1726
WisdomTree Emerging Markets Local Debt Fund
ELD
$143M
$6.98K ﹤0.01%
270
+1
+0.4% +$25
LBRDA icon
1727
Liberty Broadband Class A
LBRDA
$5.07B
$6.9K ﹤0.01%
91
– –
PCEF icon
1728
Invesco CEF Income Composite ETF
PCEF
$818M
$6.7K ﹤0.01%
370
– –
GCMGW
1729
DELISTED
GCM Grosvenor Inc Warrant
GCMGW
$6.6K ﹤0.01%
14,990
– –
QDF icon
1730
FlexShares Quality Dividend Index Fund
QDF
$2.28B
$6.52K ﹤0.01%
124
– –
AAXJ icon
1731
iShares MSCI All Country Asia ex Japan ETF
AAXJ
$3.83B
$6.48K ﹤0.01%
100
-43
-30% -$2.66K
MCHI icon
1732
iShares MSCI China ETF
MCHI
$6.21B
$6.44K ﹤0.01%
136
-290
-68% -$12.6K
PPA icon
1733
Invesco Aerospace & Defense ETF
PPA
$8.74B
$6.27K ﹤0.01%
80
-2
-2% -$151
PFM icon
1734
Invesco Dividend Achievers ETF
PFM
$811M
$6.03K ﹤0.01%
165
– –
SLVP icon
1735
iShares MSCI Global Silver and Metals Miners ETF
SLVP
$976M
$5.92K ﹤0.01%
563
+1
+0.2% +$10
RWR icon
1736
State Street SPDR Dow Jones REIT ETF
RWR
$1.87B
$5.84K ﹤0.01%
67
– –
EWL icon
1737
iShares MSCI Switzerland ETF
EWL
$2.22B
$5.74K ﹤0.01%
137
-131
-49% -$5.33K
ISCV icon
1738
iShares Morningstar Small-Cap Value ETF
ISCV
$706M
$5.73K ﹤0.01%
110
– –
APTX
1739
DELISTED
Aptinyx Inc. Common Stock
APTX
$5.67K ﹤0.01%
19,877
– –
IWC icon
1740
iShares Micro-Cap ETF
IWC
$1.5B
$5.39K ﹤0.01%
50
-100
-67% -$10.9K
LSXMA
1741
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$5.35K ﹤0.01%
185
+5
+3% +$152
DFE icon
1742
WisdomTree Europe SmallCap Dividend Fund
DFE
$168M
$5.2K ﹤0.01%
95
– –
SPEU icon
1743
State Street SPDR Portfolio Europe ETF
SPEU
$742M
$4.68K ﹤0.01%
135
– –
IDLB
1744
DELISTED
Invesco FTSE International Low Beta Equal Weight ETF
IDLB
$4.33K ﹤0.01%
180
– –
IDEV icon
1745
iShares Core MSCI International Developed Markets ETF
IDEV
$32.7B
$3.92K ﹤0.01%
70
– –
ANGL icon
1746
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.11B
$3.86K ﹤0.01%
143
– –
BWX icon
1747
State Street SPDR Bloomberg International Treasury Bond ETF
BWX
$1.31B
$3.81K ﹤0.01%
170
-3,109
-95% -$67.5K
AIA icon
1748
iShares Asia 50 ETF
AIA
$5.04B
$3.75K ﹤0.01%
66
– –
NANR icon
1749
State Street SPDR S&P North American Natural Resources ETF
NANR
$812M
$3.74K ﹤0.01%
69
-312
-82% -$17K
LEGR icon
1750
First Trust Indxx Innovative Transaction & Process ETF
LEGR
$133M
$3.42K ﹤0.01%
100
– –
68 69
70
71 72

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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.