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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
IGM icon
1651
iShares Expanded Tech Sector ETF
IGM
$10.8B
$25.9K ﹤0.01%
300
– –
PXF icon
1652
Invesco FTSE RAFI Developed Markets ex-US ETF
PXF
$2.97B
$25.3K ﹤0.01%
510
– –
IBDP
1653
DELISTED
iShares iBonds Dec 2024 Term Corporate ETF
IBDP
$25.1K ﹤0.01%
1,000
-500
-33% -$12.5K
HTZWW
1654
Hertz Global Holdings Warrants
HTZWW
$112M
$24.9K ﹤0.01%
5,602
– –
FUBO icon
1655
FuboTV Inc
FUBO
$293M
$24.8K ﹤0.01%
+1,308
New +$34.1K
VCLT icon
1656
Vanguard Long-Term Corporate Bond ETF
VCLT
$8.75B
$24.4K ﹤0.01%
312
+216
+225% +$16.8K
TQQQ icon
1657
ProShares UltraPro QQQ
TQQQ
$37.4B
$24.2K ﹤0.01%
786
+270
+52% +$7.68K
NFRA icon
1658
FlexShares STOXX Global Broad Infrastructure Index Fund
NFRA
$3.03B
$24.1K ﹤0.01%
441
– –
EMC icon
1659
Global X Emerging Markets Great Consumer ETF
EMC
$57.1M
$23.2K ﹤0.01%
887
– –
HEWJ icon
1660
iShares Currency Hedged MSCI Japan ETF
HEWJ
$763M
$23.1K ﹤0.01%
550
– –
OUSA icon
1661
ALPS O'Shares U.S. Quality Dividend ETF
OUSA
$758M
$22.7K ﹤0.01%
460
-428
-48% -$20.4K
BOCT icon
1662
Innovator US Equity Buffer ETF October
BOCT
$290M
$22.7K ﹤0.01%
562
– –
STEM icon
1663
Stem
STEM
$48.8M
$22.2K ﹤0.01%
+507
New +$28.2K
FRGE
1664
DELISTED
Forge Global Holdings
FRGE
$22K ﹤0.01%
+759
New +$23.7K
IPAC icon
1665
iShares Core MSCI Pacific ETF
IPAC
$2.78B
$21.5K ﹤0.01%
340
-357
-51% -$21.7K
SPGP icon
1666
Invesco S&P 500 GARP ETF
SPGP
$2.31B
$21.4K ﹤0.01%
201
-199
-50% -$19.8K
MDYG icon
1667
State Street SPDR S&P 400 Mid Cap Growth ETF
MDYG
$2.96B
$21.3K ﹤0.01%
244
+40
+20% +$3.19K
OCGN icon
1668
Ocugen
OCGN
$475M
$21.2K ﹤0.01%
+12,954
New +$10.9K
SQQQ icon
1669
ProShares UltraPro Short QQQ
SQQQ
$1.73B
$21K ﹤0.01%
80
– –
AAXJ icon
1670
iShares MSCI All Country Asia ex Japan ETF
AAXJ
$3.83B
$20.1K ﹤0.01%
296
– –
FTXL icon
1671
First Trust Nasdaq Semiconductor ETF
FTXL
$1.36B
$19.9K ﹤0.01%
220
– –
PZA icon
1672
Invesco National AMT-Free Municipal Bond ETF
PZA
$4.27B
$19.5K ﹤0.01%
820
– –
AGZ icon
1673
iShares Agency Bond ETF
AGZ
$564M
$19.4K ﹤0.01%
180
– –
DFNM icon
1674
Dimensional National Municipal Bond ETF
DFNM
$2.26B
$18.9K ﹤0.01%
393
+377
+2,356% +$18.2K
SOCL icon
1675
Global X Social Media ETF
SOCL
$90.3M
$18.8K ﹤0.01%
467
+82
+21% +$3.27K
65 66
67
68 69

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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.