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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
AIVI icon
1551
WisdomTree International AI Enhanced Value Fund
AIVI
$63.1M
$52.4K ﹤0.01%
1,450
– –
FAX
1552
abrdn Asia-Pacific Income Fund
FAX
$604M
$51.5K ﹤0.01%
3,267
– –
PIZ icon
1553
Invesco Dorsey Wright Developed Markets Momentum ETF
PIZ
$742M
$50.8K ﹤0.01%
1,850
– –
AVIR icon
1554
Atea Pharmaceuticals
AVIR
$405M
$50.3K ﹤0.01%
+10,458
New +$52.9K
PID icon
1555
Invesco International Dividend Achievers ETF
PID
$912M
$50.2K ﹤0.01%
3,000
– –
FCOM icon
1556
Fidelity MSCI Communication Services Index ETF
FCOM
$1.76B
$49.9K ﹤0.01%
+1,608
New +$51.3K
FTCH
1557
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
$49.7K ﹤0.01%
10,517
+12
+0.1% +$84
IGE icon
1558
iShares North American Natural Resources ETF
IGE
$786M
$49.2K ﹤0.01%
1,211
+6
+0.5% +$244
RESE
1559
DELISTED
WisdomTree Emerging Markets ESG Fund
RESE
$48.3K ﹤0.01%
1,774
+7
+0.4% +$185
DVYE icon
1560
iShares Emerging Markets Dividend ETF
DVYE
$1.21B
$48.2K ﹤0.01%
2,000
– –
IYY icon
1561
iShares Dow Jones US ETF
IYY
$3.07B
$47.7K ﹤0.01%
510
– –
WOMN icon
1562
Impact Shares Womens Empowerment ETF Trading
WOMN
$59.1M
$46.3K ﹤0.01%
1,748
+12
+0.7% +$339
LRGF icon
1563
iShares US Equity Factor ETF
LRGF
$3.71B
$46.2K ﹤0.01%
1,185
– –
IMCG icon
1564
iShares Morningstar Mid-Cap Growth ETF
IMCG
$4.16B
$45.6K ﹤0.01%
846
– –
BDSX icon
1565
Biodesix
BDSX
$256M
$45.5K ﹤0.01%
+990
New +$26.9K
EWZ icon
1566
iShares MSCI Brazil ETF
EWZ
$8.57B
$45.3K ﹤0.01%
1,618
-735
-31% -$22.4K
OVID icon
1567
Ovid Therapeutics
OVID
$489M
$45.3K ﹤0.01%
24,328
-6,900
-22% -$11.8K
GENI icon
1568
Genius Sports
GENI
$2.12B
$44.8K ﹤0.01%
12,550
– –
SRVR icon
1569
Pacer Data & Infrastructure Real Estate ETF
SRVR
$386M
$44K ﹤0.01%
1,515
– –
BITO icon
1570
ProShares Bitcoin Strategy ETF
BITO
$1.43B
$43.9K ﹤0.01%
4,207
-993
-19% -$11.1K
IAT icon
1571
iShares US Regional Banks ETF
IAT
$687M
$43.1K ﹤0.01%
904
-66
-7% -$3.24K
FXN icon
1572
First Trust Energy AlphaDEX Fund
FXN
$388M
$43K ﹤0.01%
2,519
+2,100
+501% +$37.7K
GALT icon
1573
Galectin Therapeutics
GALT
$317M
$42.8K ﹤0.01%
37,884
-3,000
-7% -$4K
EWJV icon
1574
iShares MSCI Japan Value ETF
EWJV
$754M
$42.8K ﹤0.01%
1,750
– –
IHF icon
1575
iShares US Healthcare Providers ETF
IHF
$1.27B
$42.3K ﹤0.01%
790
– –
61 62
63
64 65

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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.