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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
BBUS icon
1576
JPMorgan BetaBuilders US Equity ETF
BBUS
$9.22B
$57.6K ﹤0.01%
610
+136
+29% +$12.2K
EWZ icon
1577
iShares MSCI Brazil ETF
EWZ
$8.57B
$57.5K ﹤0.01%
1,775
-157
-8% -$5.19K
HEWG
1578
DELISTED
iShares Currency Hedged MSCI Germany ETF
HEWG
$57.1K ﹤0.01%
1,610
– –
PAYS icon
1579
Paysign
PAYS
$723M
$55.3K ﹤0.01%
15,120
– –
HYS icon
1580
PIMCO 0-5 Year High Yield Corporate Bond Index Exchange-Traded Fund
HYS
$1.77B
$55.1K ﹤0.01%
589
+309
+110% +$28.8K
RSPM icon
1581
Invesco S&P 500 Equal Weight Materials ETF
RSPM
$184M
$54.9K ﹤0.01%
1,510
– –
OIH icon
1582
VanEck Oil Services ETF
OIH
$1.96B
$54.8K ﹤0.01%
163
+10
+7% +$3.03K
TBF icon
1583
ProShares Short 20+ Year Treasury ETF
TBF
$106M
$54.5K ﹤0.01%
2,350
– –
UA icon
1584
Under Armour Class C
UA
$2.2B
$52.9K ﹤0.01%
7,416
+162
+2% +$1.24K
MPT
1585
Medical Properties Trust
MPT
$2.42B
$52.6K ﹤0.01%
11,202
-5,708
-34% -$21.9K
NURE icon
1586
Nuveen Short-Term REIT ETF
NURE
$34.8M
$52K ﹤0.01%
+1,700
New +$51.2K
SCHZ icon
1587
Schwab US Aggregate Bond ETF
SCHZ
$10.5B
$52K ﹤0.01%
2,262
-1,282
-36% -$29.5K
LSXMA
1588
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$51.6K ﹤0.01%
1,739
+1,123
+182% +$33.8K
EDIV icon
1589
State Street SPDR S&P Emerging Markets Dividend ETF
EDIV
$1.22B
$50.3K ﹤0.01%
1,502
– –
SPYX icon
1590
State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF
SPYX
$2.87B
$48.3K ﹤0.01%
1,128
– –
ITEQ icon
1591
Amplify BlueStar Israel Technology ETF
ITEQ
$118M
$48.3K ﹤0.01%
1,000
-50
-5% -$2.34K
JETS icon
1592
US Global Jets ETF
JETS
$825M
$48K ﹤0.01%
2,286
-300
-12% -$5.85K
JSMD icon
1593
Janus Henderson Small/Mid Cap Growth Alpha ETF
JSMD
$1.1B
$47.7K ﹤0.01%
682
– –
IFLN
1594
Invesco Bloomberg Enhanced Fallen Angels ETF
IFLN
$306M
$47.7K ﹤0.01%
2,629
+5
+0.2% +$90
OXY.WS icon
1595
Occidental Petroleum Corp Warrants
OXY.WS
$34.4B
$47.3K ﹤0.01%
1,097
-151
-12% -$5.71K
EZM icon
1596
WisdomTree US MidCap Fund
EZM
$957M
$46.7K ﹤0.01%
765
– –
FPX icon
1597
First Trust US Equity Opportunities ETF
FPX
$1.53B
$46.6K ﹤0.01%
440
– –
EQAL icon
1598
Invesco Russell 1000 Equal Weight ETF
EQAL
$844M
$45.4K ﹤0.01%
982
– –
BMVP icon
1599
Invesco Bloomberg MVP Multi-factor ETF
BMVP
$106M
$45K ﹤0.01%
990
-225
-19% -$9.55K
SPIP icon
1600
State Street SPDR Portfolio TIPS ETF
SPIP
$1.01B
$44.9K ﹤0.01%
1,752
+170
+11% +$4.35K
62 63
64
65 66

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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.