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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
SCHM icon
1626
Schwab US Mid-Cap ETF
SCHM
$15.2B
$32.4K ﹤0.01%
1,434
-48
-3% -$1.1K
AXDX
1627
DELISTED
Accelerate Diagnostics
AXDX
$32.1K ﹤0.01%
4,588
– –
SCHZ icon
1628
Schwab US Aggregate Bond ETF
SCHZ
$10.5B
$32K ﹤0.01%
1,366
+284
+26% +$6.61K
SPTL icon
1629
State Street SPDR Portfolio Long Term Treasury ETF
SPTL
$10.7B
$31.3K ﹤0.01%
1,012
+734
+264% +$22.3K
FDIS icon
1630
Fidelity MSCI Consumer Discretionary Index ETF
FDIS
$1.71B
$31.1K ﹤0.01%
475
– –
GEF.B icon
1631
Greif Class B
GEF.B
$4.24B
$30.6K ﹤0.01%
400
– –
OIH icon
1632
VanEck Oil Services ETF
OIH
$1.96B
$30.2K ﹤0.01%
109
+70
+179% +$21.4K
PBW icon
1633
Invesco WilderHill Clean Energy ETF
PBW
$458M
$30.1K ﹤0.01%
744
– –
UPH
1634
DELISTED
UpHealth, Inc.
UPH
$29.4K ﹤0.01%
19,710
– –
DFJ icon
1635
WisdomTree Japan SmallCap Dividend Fund
DFJ
$402M
$29.3K ﹤0.01%
438
– –
MODD icon
1636
Modular Medical
MODD
$11.2M
$29K ﹤0.01%
667
– –
GBF icon
1637
iShares Government/Credit Bond ETF
GBF
$128M
$28.6K ﹤0.01%
270
– –
REM icon
1638
iShares Mortgage Real Estate ETF
REM
$543M
$28.4K ﹤0.01%
1,300
– –
IXG icon
1639
iShares Global Financials ETF
IXG
$698M
$28.4K ﹤0.01%
411
-42
-9% -$3.06K
FNCL icon
1640
Fidelity MSCI Financials Index ETF
FNCL
$2.42B
$28K ﹤0.01%
620
+426
+220% +$20.9K
NKTR icon
1641
Nektar Therapeutics
NKTR
$2.57B
$27.4K ﹤0.01%
2,596
-123
-5% -$3.72K
IQLT icon
1642
iShares MSCI Intl Quality Factor ETF
IQLT
$14.3B
$27.4K ﹤0.01%
775
+103
+15% +$3.54K
IGM icon
1643
iShares Expanded Tech Sector ETF
IGM
$10.8B
$27.1K ﹤0.01%
480
– –
VIOG icon
1644
Vanguard S&P Small-Cap 600 Growth ETF
VIOG
$1.13B
$26K ﹤0.01%
274
– –
ISCG icon
1645
iShares Morningstar Small-Cap Growth ETF
ISCG
$1.02B
$25.7K ﹤0.01%
660
– –
DXGE
1646
DELISTED
WisdomTree Germany Hedged Equity Fund
DXGE
$25.5K ﹤0.01%
700
– –
SPTI icon
1647
State Street SPDR Portfolio Intermediate Term Treasury ETF
SPTI
$10.6B
$25.5K ﹤0.01%
880
– –
EEMS icon
1648
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$379M
$25.2K ﹤0.01%
500
– –
PXF icon
1649
Invesco FTSE RAFI Developed Markets ex-US ETF
PXF
$2.97B
$25.2K ﹤0.01%
572
+62
+12% +$2.73K
PBE icon
1650
Invesco Biotechnology & Genome ETF
PBE
$358M
$25.1K ﹤0.01%
400
– –
64 65
66
67 68

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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.