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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
PGF icon
1726
Invesco Financial Preferred ETF
PGF
$668M
$8.01K ﹤0.01%
558
– –
CALF icon
1727
Pacer US Small Cap Cash Cows 100 ETF
CALF
$3.84B
$7.73K ﹤0.01%
+190
New +$7.21K
FWONA icon
1728
Liberty Media Series A
FWONA
$23.7B
$7.64K ﹤0.01%
118
+111
+1,586% +$7.02K
ELD icon
1729
WisdomTree Emerging Markets Local Debt Fund
ELD
$143M
$7.51K ﹤0.01%
272
+1
+0.4% +$27
LBRDA icon
1730
Liberty Broadband Class A
LBRDA
$5.07B
$7.25K ﹤0.01%
91
– –
QDF icon
1731
FlexShares Quality Dividend Index Fund
QDF
$2.28B
$7.17K ﹤0.01%
124
– –
RWM icon
1732
ProShares Short Russell2000
RWM
$99.7M
$6.85K ﹤0.01%
300
– –
INTF icon
1733
iShares International Equity Factor ETF
INTF
$3.75B
$6.84K ﹤0.01%
255
– –
DBGI
1734
Digital Brands Group
DBGI
$9.56M
– –
0
– –
UFEB icon
1735
Innovator US Equity Ultra Buffer ETF February
UFEB
$241M
$6.43K ﹤0.01%
231
– –
CELL
1736
DELISTED
PhenomeX Inc. Common Stock
CELL
$6.3K ﹤0.01%
12,850
-150
-1% -$123
RWR icon
1737
State Street SPDR Dow Jones REIT ETF
RWR
$1.87B
$6.06K ﹤0.01%
67
-84
-56% -$7.41K
RSPS icon
1738
Invesco S&P 500 Equal Weight Consumer Staples ETF
RSPS
$246M
$5.86K ﹤0.01%
175
-2,050
-92% -$70K
IWC icon
1739
iShares Micro-Cap ETF
IWC
$1.5B
$5.46K ﹤0.01%
50
– –
SLVP icon
1740
iShares MSCI Global Silver and Metals Miners ETF
SLVP
$976M
$5.46K ﹤0.01%
565
+2
+0.4% +$22
MNTS icon
1741
Momentus
MNTS
$91.5M
$5.44K ﹤0.01%
1
– –
ISCV icon
1742
iShares Morningstar Small-Cap Value ETF
ISCV
$706M
$5.35K ﹤0.01%
99
-1
-1% -$51
DFE icon
1743
WisdomTree Europe SmallCap Dividend Fund
DFE
$168M
$5.3K ﹤0.01%
95
– –
HLGN
1744
DELISTED
Heliogen, Inc.
HLGN
$5.13K ﹤0.01%
599
– –
CHGG icon
1745
Chegg
CHGG
$88.9M
$5.05K ﹤0.01%
569
-101
-15% -$1.23K
DSTL icon
1746
Distillate US Fundamental Stability & Value ETF
DSTL
$2.05B
$4.98K ﹤0.01%
110
– –
REGL icon
1747
ProShares S&P MidCap 400 Dividend Aristocrats ETF
REGL
$1.81B
$4.94K ﹤0.01%
+70
New +$4.86K
EFZ icon
1748
ProShares Trust Short MSCI EAFE
EFZ
$9.98M
$4.51K ﹤0.01%
126
– –
PTF icon
1749
Invesco Dorsey Wright Technology Momentum ETF
PTF
$654M
$4.42K ﹤0.01%
+90
New +$3.94K
IPAC icon
1750
iShares Core MSCI Pacific ETF
IPAC
$2.78B
$4.37K ﹤0.01%
76
– –
68 69
70
71 72

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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.