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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
IFRA icon
1501
iShares US Infrastructure ETF
IFRA
$4.62B
$76.5K ﹤0.01%
2,110
– –
RSPS icon
1502
Invesco S&P 500 Equal Weight Consumer Staples ETF
RSPS
$246M
$75.9K ﹤0.01%
2,225
+2,050
+1,171% +$68.7K
VIRX
1503
DELISTED
Viracta Therapeutics, Inc. Common Stock
VIRX
$75.7K ﹤0.01%
51,843
– –
CORP icon
1504
PIMCO Investment Grade Corporate Bond Index Exchange-Traded Fund
CORP
$1.58B
$75.1K ﹤0.01%
807
-40
-5% -$3.7K
JNK icon
1505
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.31B
$74.8K ﹤0.01%
832
+174
+26% +$15.7K
NN icon
1506
NextNav
NN
$3.25B
$73.3K ﹤0.01%
25,000
+5,000
+25% +$15.4K
FEZ icon
1507
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.55B
$71.8K ﹤0.01%
1,855
– –
SRLN icon
1508
State Street Blackstone Senior Loan ETF
SRLN
$5.37B
$71.3K ﹤0.01%
1,743
-626
-26% -$25.8K
XYLD icon
1509
Global X S&P 500 Covered Call ETF
XYLD
$3.28B
$70.5K ﹤0.01%
1,791
-6,464
-78% -$257K
BMAY icon
1510
Innovator US Equity Buffer ETF May
BMAY
$237M
$69.9K ﹤0.01%
2,409
– –
AQN icon
1511
Algonquin Power & Utilities
AQN
$4.44B
$69.3K ﹤0.01%
10,626
-23,000
-68% -$205K
RYLD icon
1512
Global X Russell 2000 Covered Call ETF
RYLD
$1.39B
$69.2K ﹤0.01%
3,680
+72
+2% +$1.39K
IGF icon
1513
iShares Global Infrastructure ETF
IGF
$10.7B
$69.1K ﹤0.01%
1,508
-1,483
-50% -$66.7K
IFLN
1514
Invesco Bloomberg Enhanced Fallen Angels ETF
IFLN
$306M
$68.6K ﹤0.01%
4,008
– –
ATOM icon
1515
Atomera
ATOM
$216M
$68.6K ﹤0.01%
11,025
– –
PPH icon
1516
VanEck Pharmaceutical ETF
PPH
$990M
$68.6K ﹤0.01%
882
+682
+341% +$50.3K
GWH.WS
1517
DELISTED
ESS Tech Inc Warrant
GWH.WS
$68.5K ﹤0.01%
244,498
– –
CS
1518
DELISTED
Credit Suisse Group
CS
$68.1K ﹤0.01%
+22,415
New +$87.2K
BBH icon
1519
VanEck Biotech ETF
BBH
$429M
$67.9K ﹤0.01%
425
– –
DBEU icon
1520
Xtrackers MSCI Europe Hedged Equity ETF
DBEU
$798M
$66.8K ﹤0.01%
2,000
– –
TRHC
1521
DELISTED
Tabula Rasa HealthCare, Inc. Common Stock
TRHC
$66.8K ﹤0.01%
13,497
-1,860
-12% -$7.66K
PRN icon
1522
Invesco Dorsey Wright Industrials Momentum ETF
PRN
$445M
$65.7K ﹤0.01%
+761
New +$66.7K
FINX icon
1523
Global X FinTech ETF
FINX
$166M
$65.3K ﹤0.01%
3,394
-7,559
-69% -$152K
FSMB icon
1524
First Trust Short Duration Managed Municipal ETF
FSMB
$627M
$65.1K ﹤0.01%
3,300
+588
+22% +$11.5K
SWN
1525
DELISTED
Southwestern Energy Company
SWN
$64.7K ﹤0.01%
11,068
-1,593
-13% -$10.5K
59 60
61
62 63

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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.