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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
OEF icon
501
iShares S&P 100 ETF
OEF
$20.6B
$3.78M 0.02%
20,213
+5,396
+36% +$968K
HDV
502
iShares Core High Dividend ETF
HDV
$15.1B
$3.77M 0.02%
185,300
+1,325
+0.7% +$27.2K
AEP icon
503
American Electric Power
AEP
$68.1B
$3.75M 0.02%
41,243
-422
-1% -$38.6K
SAIC icon
504
Saic
SAIC
$5.37B
$3.7M 0.01%
34,400
-502
-1% -$52.9K
CSX icon
505
CSX Corp
CSX
$93.7B
$3.69M 0.01%
123,406
-1,224
-1% -$37.6K
WEC icon
506
WEC Energy
WEC
$35.7B
$3.69M 0.01%
38,887
-54
-0.1% -$5K
JAMF
507
DELISTED
Jamf
JAMF
$3.66M 0.01%
188,454
+32,567
+21% +$652K
III icon
508
Information Services Group
III
$248M
$3.63M 0.01%
713,028
+24,045
+3% +$123K
LSTR icon
509
Landstar System
LSTR
$6.38B
$3.62M 0.01%
20,204
-142
-0.7% -$25K
VHT icon
510
Vanguard Health Care ETF
VHT
$19.1B
$3.62M 0.01%
15,188
+2,008
+15% +$483K
RH icon
511
RH
RH
$3.51B
$3.61M 0.01%
14,825
-1,796
-11% -$521K
FNF icon
512
Fidelity National Financial
FNF
$13B
$3.61M 0.01%
103,236
-74
-0.1% -$2.91K
NTNX icon
513
Nutanix
NTNX
$17.8B
$3.58M 0.01%
137,770
-480
-0.3% -$13K
BMRN icon
514
BioMarin Pharmaceuticals
BMRN
$13.4B
$3.55M 0.01%
36,548
-3,710
-9% -$385K
STWD icon
515
Starwood Property Trust
STWD
$6.1B
$3.55M 0.01%
200,894
+3,217
+2% +$62.1K
AMLP icon
516
Alerian MLP ETF
AMLP
$13.1B
$3.54M 0.01%
91,672
+7,124
+8% +$279K
IGSB icon
517
iShares 1-5 Year Investment Grade Corporate Bond ETF
IGSB
$23.4B
$3.54M 0.01%
69,962
+9,131
+15% +$458K
PLD icon
518
Prologis
PLD
$135B
$3.53M 0.01%
28,318
+1,049
+4% +$129K
RSPT icon
519
Invesco S&P 500 Equal Weight Technology ETF
RSPT
$6.02B
$3.53M 0.01%
127,740
+27,020
+27% +$712K
SPHQ icon
520
Invesco S&P 500 Quality ETF
SPHQ
$19.9B
$3.52M 0.01%
74,451
+6,327
+9% +$289K
MAR icon
521
Marriott International
MAR
$92.7B
$3.5M 0.01%
21,075
-548
-3% -$91.3K
ADSK icon
522
Autodesk
ADSK
$52.8B
$3.5M 0.01%
16,805
-2,832
-14% -$583K
RPD icon
523
Rapid7
RPD
$874M
$3.48M 0.01%
75,844
-16,296
-18% -$694K
EVBG
524
DELISTED
Everbridge, Inc. Common Stock
EVBG
$3.48M 0.01%
100,345
+1,505
+2% +$48.1K
VDC icon
525
Vanguard Consumer Staples ETF
VDC
$8.04B
$3.47M 0.01%
17,924
-42
-0.2% -$7.96K
19 20
21
22 23

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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.