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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
+10.07%
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
$31.8B
AUM Growth
+$2.49B
Cap. Flow
+$139M
Cap. Flow %
0.44%
Top 10 Hldgs %
23.43%
Holding
1,869
New
90
Increased
714
Reduced
722
Closed
82

Top Buys

Rank Stock Value
1
UBER icon
Uber
UBER
+$24.2M
2
IOT icon
Samsara
IOT
+$23.9M
3
PRCT icon
Procept Biorobotics
PRCT
+$20.5M
4
ISRG icon
Intuitive Surgical
ISRG
+$19.9M
5
AMZN icon
Amazon
AMZN
+$19.4M

Top Sells

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$67.1M
2
MA icon
Mastercard
MA
+$65.4M
3
AON icon
Aon
AON
+$40.3M
4
FLYW icon
Flywire
FLYW
+$25.7M
5
DV icon
DoubleVerify
DV
+$19.5M

Sector Composition

Rank Sector Weight
1 Technology 25.75%
2 Healthcare 17.03%
3 Financials 12.35%
4 Industrials 11.88%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GVI icon
1551
iShares Intermediate Government/Credit Bond ETF
GVI
$3.79B
$70.9K ﹤0.01%
682
-23
-3% -$2.39K
BBH icon
1552
VanEck Biotech ETF
BBH
$429M
$70.7K ﹤0.01%
425
– –
VTHR icon
1553
Vanguard Russell 3000 ETF
VTHR
$4.85B
$70.3K ﹤0.01%
302
-816
-73% -$181K
NUSC icon
1554
Nuveen ESG Small-Cap ETF
NUSC
$1.34B
$70.3K ﹤0.01%
+1,691
New +$66.3K
EWX icon
1555
State Street SPDR S&P Emerging Markets Small Cap ETF
EWX
$702M
$68.1K ﹤0.01%
1,220
– –
ATOM icon
1556
Atomera
ATOM
$216M
$67.9K ﹤0.01%
11,025
– –
LMBS icon
1557
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
$6.39B
$67.6K ﹤0.01%
1,401
– –
SWIM icon
1558
Latham Group
SWIM
$921M
$67.4K ﹤0.01%
17,023
-41,826
-71% -$119K
SIRI icon
1559
SiriusXM
SIRI
$9.59B
$67.3K ﹤0.01%
1,734
-30
-2% -$1.43K
IRD
1560
Opus Genetics
IRD
$313M
$66.9K ﹤0.01%
33,267
– –
LLYVK icon
1561
Liberty Live Group Series C
LLYVK
$9.8B
$65.9K ﹤0.01%
1,505
+49
+3% +$1.88K
PIZ icon
1562
Invesco Dorsey Wright Developed Markets Momentum ETF
PIZ
$742M
$65.5K ﹤0.01%
1,900
– –
IYY icon
1563
iShares Dow Jones US ETF
IYY
$3.07B
$65.3K ﹤0.01%
510
– –
KCE icon
1564
State Street SPDR S&P Capital Markets ETF
KCE
$473M
$64.9K ﹤0.01%
587
+359
+157% +$37.2K
APLD icon
1565
Applied Digital
APLD
$8.97B
$64.6K ﹤0.01%
+15,100
New +$76.2K
LRGF icon
1566
iShares US Equity Factor ETF
LRGF
$3.71B
$63.8K ﹤0.01%
1,185
– –
EWA icon
1567
iShares MSCI Australia ETF
EWA
$1.46B
$63.6K ﹤0.01%
2,580
-63
-2% -$1.5K
RSPE icon
1568
Invesco ESG S&P 500 Equal Weight ETF
RSPE
$69.9M
$62.6K ﹤0.01%
2,416
– –
REAX icon
1569
Real Brokerage
REAX
$508M
$62.4K ﹤0.01%
+20,000
New +$54.9K
AVXL icon
1570
Anavex Life Sciences
AVXL
$316M
$62.1K ﹤0.01%
12,200
– –
DON icon
1571
WisdomTree US MidCap Dividend Fund
DON
$4.1B
$60.9K ﹤0.01%
1,249
-1,584
-56% -$72.6K
AIVI icon
1572
WisdomTree International AI Enhanced Value Fund
AIVI
$63.1M
$59.5K ﹤0.01%
1,450
– –
SCHC icon
1573
Schwab International Small-Cap Equity ETF
SCHC
$5.67B
$58.7K ﹤0.01%
1,640
-1
-0.1% -$34
EWJV icon
1574
iShares MSCI Japan Value ETF
EWJV
$754M
$58.2K ﹤0.01%
1,750
– –
IAI icon
1575
iShares US Broker-Dealers & Securities Exchanges ETF
IAI
$1.37B
$58K ﹤0.01%
+500
New +$54.4K
61 62
63
64 65

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William Blair & Company's Q1 2024 Portfolio in Review

As of Q1 2024, William Blair & Company held 1,869 positions worth $31.8B, up 8.5% from $29.3B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q1 2024 filing shows 90 new, 714 increased, 722 reduced and 82 closed positions. Its largest new stake was Procept Biorobotics: 429,793 shares worth $21.2M. The largest sale was Splunk Inc, an estimated $67.1M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2024 buy was Procept Biorobotics: 429,793 shares worth $21.2M.
  • William Blair & Company added most to Uber in Q1 2024, an estimated $24.2M increase.
  • William Blair & Company's biggest Q1 2024 reduction was Mastercard, cutting an estimated $65.4M.
  • William Blair & Company fully exited Splunk Inc in Q1 2024, selling an estimated $67.1M.
  • William Blair & Company's ten largest holdings make up 23% of its $31.8B portfolio in Q1 2024.
  • William Blair & Company opened 90 new positions and closed 82 in Q1 2024.
  • William Blair & Company's portfolio value rose 8.5% quarter-over-quarter to $31.8B.

Based on William Blair & Company's 13F filing for Q1 2024, filed 9 May 2024.