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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
+9.7%
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
$27.3B
AUM Growth
+$2.26B
Cap. Flow
+$202M
Cap. Flow %
0.74%
Top 10 Hldgs %
24.36%
Holding
1,897
New
97
Increased
682
Reduced
737
Closed
88

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$28.3M
2
ALL icon
Allstate
ALL
+$25.8M
3
ISRG icon
Intuitive Surgical
ISRG
+$19.6M
4
NEOG icon
Neogen
NEOG
+$17.4M
5
DV icon
DoubleVerify
DV
+$17.3M

Top Sells

Rank Stock Value
1
NBIX icon
Neurocrine Biosciences
NBIX
+$29.1M
2
PLNT icon
Planet Fitness
PLNT
+$20.4M
3
ABNB icon
Airbnb
ABNB
+$17.1M
4
IBM icon
IBM
IBM
+$14.8M
5
XMTR icon
Xometry
XMTR
+$10.8M

Sector Composition

Rank Sector Weight
1 Technology 25.59%
2 Healthcare 18.44%
3 Industrials 11.64%
4 Financials 11.51%
5 Consumer Discretionary 8.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GCMGW
1751
DELISTED
GCM Grosvenor Inc Warrant
GCMGW
$4.35K ﹤0.01%
14,990
– –
AIA icon
1752
iShares Asia 50 ETF
AIA
$5.08B
$3.93K ﹤0.01%
66
– –
LEGR icon
1753
First Trust Indxx Innovative Transaction & Process ETF
LEGR
$134M
$3.84K ﹤0.01%
100
– –
KCE icon
1754
State Street SPDR S&P Capital Markets ETF
KCE
$482M
$3.56K ﹤0.01%
42
– –
NANR icon
1755
State Street SPDR S&P North American Natural Resources ETF
NANR
$804M
$3.55K ﹤0.01%
69
– –
MLPX icon
1756
Global X MLP & Energy Infrastructure ETF
MLPX
$3.55B
$3.33K ﹤0.01%
80
– –
ANGL icon
1757
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.12B
$3.01K ﹤0.01%
108
-35
-24% -$963
UDOW icon
1758
ProShares UltraPro Dow 30
UDOW
$929M
$2.98K ﹤0.01%
+100
New +$2.84K
FXZ icon
1759
First Trust Materials AlphaDEX Fund
FXZ
$385M
$2.9K ﹤0.01%
45
– –
XRLV
1760
DELISTED
Invesco S&P 500 ex-Rate Sensitive Low Volatility ETF
XRLV
$2.63K ﹤0.01%
55
– –
EINC icon
1761
VanEck Energy Income ETF
EINC
$79.7M
$2.44K ﹤0.01%
38
– –
USDU icon
1762
WisdomTree Bloomberg US Dollar Bullish Fund
USDU
$458M
$2.25K ﹤0.01%
85
– –
EQWL icon
1763
Invesco S&P 100 Equal Weight ETF
EQWL
$2.81B
$2.2K ﹤0.01%
+27
New +$2.12K
VGLT icon
1764
Vanguard Long-Term Treasury ETF
VGLT
$10.4B
$2.1K ﹤0.01%
33
-74
-69% -$4.75K
NORW icon
1765
Global X MSCI Norway ETF
NORW
$88.1M
$2.01K ﹤0.01%
87
– –
IAK icon
1766
iShares US Insurance ETF
IAK
$538M
$1.93K ﹤0.01%
22
– –
PIIIW icon
1767
P3 Health Partners Inc Warrant
PIIIW
$168K
$1.86K ﹤0.01%
7,765
– –
DWX icon
1768
State Street SPDR S&P International Dividend ETF
DWX
$528M
$1.72K ﹤0.01%
50
– –
SPXU icon
1769
ProShares UltraPro Short S&P 500
SPXU
$377M
$1.71K ﹤0.01%
8
– –
XSLV icon
1770
Invesco S&P SmallCap Low Volatility ETF
XSLV
$249M
$1.67K ﹤0.01%
42
– –
MXI icon
1771
iShares Global Materials ETF
MXI
$356M
$1.34K ﹤0.01%
16
– –
SBIO icon
1772
ALPS Medical Breakthroughs ETF
SBIO
$215M
$1.1K ﹤0.01%
+35
New +$1.09K
MJ icon
1773
Amplify Alternative Harvest ETF
MJ
$114M
$963 ﹤0.01%
27
-17
-39% -$655
CPAAW
1774
DELISTED
Conyers Park III Acquisition Corp. Warrants
CPAAW
$957 ﹤0.01%
19,138
– –
ISPOW
1775
DELISTED
Inspirato Inc Warrant
ISPOW
$842 ﹤0.01%
15,000
– –
69 70
71
72 73

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William Blair & Company's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair & Company held 1,897 positions worth $27.3B, up 9% from $25B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2023 filing shows 97 new, 682 increased, 737 reduced and 88 closed positions. Its largest new stake was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M. The largest sale was Neurocrine Biosciences, an estimated $29.1M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair & Company's largest Q2 2023 buy was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M.
  • William Blair & Company added most to Costco in Q2 2023, an estimated $28.3M increase.
  • William Blair & Company's biggest Q2 2023 reduction was Neurocrine Biosciences, cutting an estimated $29.1M.
  • William Blair & Company fully exited ABB Ltd in Q2 2023, selling an estimated $7.21M.
  • William Blair & Company's ten largest holdings make up 24% of its $27.3B portfolio in Q2 2023.
  • William Blair & Company opened 97 new positions and closed 88 in Q2 2023.
  • William Blair & Company's portfolio value rose 9% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q2 2023, filed 11 Aug 2023.