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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
+10.3%
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
$25B
AUM Growth
+$2.04B
Cap. Flow
+$116M
Cap. Flow %
0.46%
Top 10 Hldgs %
23.68%
Holding
1,879
New
69
Increased
680
Reduced
748
Closed
78

Top Buys

Rank Stock Value
1
NEOG icon
Neogen
NEOG
+$45.2M
2
PGR icon
Progressive
PGR
+$34.8M
3
TOST icon
Toast
TOST
+$33.8M
4
PWSC
PowerSchool Holdings, Inc.
PWSC
+$33.4M
5
UBER icon
Uber
UBER
+$30.4M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$54.2M
2
LULU icon
lululemon athletica
LULU
+$53.4M
3
PYPL icon
PayPal
PYPL
+$45.8M
4
BAH icon
Booz Allen Hamilton
BAH
+$20.2M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 24.61%
2 Healthcare 19.42%
3 Financials 11.75%
4 Industrials 11.37%
5 Consumer Discretionary 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TCRT icon
1551
Alaunos Therapeutics
TCRT
$4.88M
$59K ﹤0.01%
625
– –
FCOM icon
1552
Fidelity MSCI Communication Services Index ETF
FCOM
$1.76B
$58.9K ﹤0.01%
1,608
– –
LBTYA icon
1553
Liberty Global Class A
LBTYA
$3.55B
$58.9K ﹤0.01%
3,018
+2,019
+202% +$41K
AGEN
1554
Agenus
AGEN
$311M
$57.3K ﹤0.01%
1,919
+204
+12% +$8.62K
AIVI icon
1555
WisdomTree International AI Enhanced Value Fund
AIVI
$63.1M
$56.3K ﹤0.01%
1,450
– –
PIZ icon
1556
Invesco Dorsey Wright Developed Markets Momentum ETF
PIZ
$742M
$55.4K ﹤0.01%
1,850
– –
UA icon
1557
Under Armour Class C
UA
$2.2B
$55.2K ﹤0.01%
6,475
-347
-5% -$3.19K
OPEN icon
1558
Opendoor
OPEN
$3.39B
$55K ﹤0.01%
32,274
+6
+0% +$10
PAYS icon
1559
Paysign
PAYS
$723M
$54.9K ﹤0.01%
15,120
– –
SWN
1560
DELISTED
Southwestern Energy Company
SWN
$54.2K ﹤0.01%
10,833
-235
-2% -$1.25K
JEPQ icon
1561
JPMorgan Nasdaq Equity Premium Income ETF
JEPQ
$41.6B
$53.4K ﹤0.01%
+1,185
New +$50.8K
GWH.WS
1562
DELISTED
ESS Tech Inc Warrant
GWH.WS
$52.9K ﹤0.01%
244,498
– –
OXY.WS icon
1563
Occidental Petroleum Corp Warrants
OXY.WS
$34.4B
$52.7K ﹤0.01%
1,285
+9
+0.7% +$364
IYY icon
1564
iShares Dow Jones US ETF
IYY
$3.07B
$51K ﹤0.01%
510
– –
HEWG
1565
DELISTED
iShares Currency Hedged MSCI Germany ETF
HEWG
$49.8K ﹤0.01%
1,610
-420
-21% -$12.7K
RESE
1566
DELISTED
WisdomTree Emerging Markets ESG Fund
RESE
$49.8K ﹤0.01%
1,775
+1
+0.1% +$28
TBF icon
1567
ProShares Short 20+ Year Treasury ETF
TBF
$106M
$49.7K ﹤0.01%
2,350
-5,350
-69% -$116K
WOMN icon
1568
Impact Shares Womens Empowerment ETF Trading
WOMN
$59.1M
$49.4K ﹤0.01%
1,748
– –
LRGF icon
1569
iShares US Equity Factor ETF
LRGF
$3.71B
$49.1K ﹤0.01%
1,185
– –
CLOV icon
1570
Clover Health Investments
CLOV
$2.41B
$48.8K ﹤0.01%
57,750
-34,000
-37% -$37.2K
SEGG
1571
Sports Entertainment Gaming Global Corp
SEGG
$7.92M
$48.5K ﹤0.01%
124
– –
SRVR icon
1572
Pacer Data & Infrastructure Real Estate ETF
SRVR
$386M
$47.7K ﹤0.01%
1,609
+94
+6% +$2.84K
IGE icon
1573
iShares North American Natural Resources ETF
IGE
$786M
$47.6K ﹤0.01%
1,216
+5
+0.4% +$202
MAMA icon
1574
Mama's Creations
MAMA
$826M
$47.5K ﹤0.01%
+25,000
New +$46.4K
EEMV icon
1575
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$3.6B
$47.4K ﹤0.01%
869
-340
-28% -$18.4K
61 62
63
64 65

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William Blair & Company's Q1 2023 Portfolio in Review

As of Q1 2023, William Blair & Company held 1,879 positions worth $25B, up 8.9% from $23B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2023 filing shows 69 new, 680 increased, 748 reduced and 78 closed positions. Its largest new stake was Neogen: 2,404,277 shares worth $44.5M. The largest sale was Alphabet (Google) Class C, an estimated $54.2M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 22% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2023 buy was Neogen: 2,404,277 shares worth $44.5M.
  • William Blair & Company added most to Progressive in Q1 2023, an estimated $34.8M increase.
  • William Blair & Company's biggest Q1 2023 reduction was Alphabet (Google) Class C, cutting an estimated $54.2M.
  • William Blair & Company fully exited Coupa Software Incorporated in Q1 2023, selling an estimated $2.65M.
  • William Blair & Company's ten largest holdings make up 24% of its $25B portfolio in Q1 2023.
  • William Blair & Company opened 69 new positions and closed 78 in Q1 2023.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $25B.

Based on William Blair & Company's 13F filing for Q1 2023, filed 12 May 2023.