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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
TBT icon
1526
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$309M
$64.7K ﹤0.01%
1,992
– –
XHB icon
1527
State Street SPDR S&P Homebuilders ETF
XHB
$1.58B
$64.6K ﹤0.01%
1,071
-1
-0.1% -$59
RC
1528
Ready Capital
RC
$289M
$64.5K ﹤0.01%
5,792
-5,764
-50% -$69.3K
EEMV icon
1529
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$3.6B
$64.1K ﹤0.01%
1,209
-455
-27% -$23.8K
SSO icon
1530
ProShares Ultra S&P500
SSO
$8.39B
$61.8K ﹤0.01%
2,780
-450
-14% -$10.2K
SPIP icon
1531
State Street SPDR Portfolio TIPS ETF
SPIP
$1.01B
$61.7K ﹤0.01%
2,395
-50
-2% -$1.29K
VTWG icon
1532
Vanguard Russell 2000 Growth ETF
VTWG
$1.56B
$61K ﹤0.01%
392
– –
UA icon
1533
Under Armour Class C
UA
$2.2B
$60.9K ﹤0.01%
6,822
+815
+14% +$6.2K
TCRT icon
1534
Alaunos Therapeutics
TCRT
$4.88M
$60.8K ﹤0.01%
625
– –
JOBY icon
1535
Joby Aviation
JOBY
$7.87B
$59.9K ﹤0.01%
17,870
+50
+0.3% +$203
EWX icon
1536
State Street SPDR S&P Emerging Markets Small Cap ETF
EWX
$702M
$59.7K ﹤0.01%
1,220
– –
JHML icon
1537
John Hancock Multifactor Large Cap ETF
JHML
$1.2B
$59.4K ﹤0.01%
1,207
– –
DNA icon
1538
Ginkgo Bioworks
DNA
$486M
$58.6K ﹤0.01%
867
-162
-16% -$14.9K
FHLC icon
1539
Fidelity MSCI Health Care Index ETF
FHLC
$3.42B
$58.2K ﹤0.01%
910
– –
UVIX icon
1540
2x Long VIX Futures ETF
UVIX
$202M
$58.2K ﹤0.01%
+1
New +$91.3K
EWA icon
1541
iShares MSCI Australia ETF
EWA
$1.46B
$57.4K ﹤0.01%
2,580
-1,574
-38% -$34.2K
RSPF icon
1542
Invesco S&P 500 Equal Weight Financials ETF
RSPF
$309M
$56.4K ﹤0.01%
1,000
– –
FXL icon
1543
First Trust Technology AlphaDEX Fund
FXL
$2.84B
$56.3K ﹤0.01%
615
– –
CQQQ icon
1544
Invesco China Technology ETF
CQQQ
$3.24B
$56.2K ﹤0.01%
1,295
+35
+3% +$1.34K
SPAB icon
1545
State Street SPDR Portfolio Aggregate Bond ETF
SPAB
$9.93B
$56K ﹤0.01%
2,221
+1,021
+85% +$25.6K
PFIN
1546
DELISTED
P&F Industries
PFIN
$55.5K ﹤0.01%
11,000
– –
USHY icon
1547
iShares Broad USD High Yield Corporate Bond ETF
USHY
$29.1B
$55.1K ﹤0.01%
1,596
-355
-18% -$12.3K
HEWG
1548
DELISTED
iShares Currency Hedged MSCI Germany ETF
HEWG
$54.8K ﹤0.01%
2,030
-9
-0.4% -$239
VUZI icon
1549
Vuzix
VUZI
$218M
$53.9K ﹤0.01%
14,817
– –
OXY.WS icon
1550
Occidental Petroleum Corp Warrants
OXY.WS
$34.4B
$52.6K ﹤0.01%
1,276
-95
-7% -$4.39K
60 61
62
63 64

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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.