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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
PJAN icon
1701
Innovator US Equity Power Buffer ETF January
PJAN
$1.43B
$13.1K ﹤0.01%
+372
New +$12.6K
POCT icon
1702
Innovator US Equity Power Buffer ETF October
POCT
$974M
$13.1K ﹤0.01%
+390
New +$12.6K
CZA icon
1703
Invesco Zacks Mid-Cap ETF
CZA
$192M
$12K ﹤0.01%
135
– –
IVOL icon
1704
Quadratic Interest Rate Volatility and Inflation Hedge ETF
IVOL
$270M
$11.8K ﹤0.01%
+574
New +$12.9K
CUT icon
1705
Invesco MSCI Global Timber ETF
CUT
$33.4M
$11.8K ﹤0.01%
400
– –
FXN icon
1706
First Trust Energy AlphaDEX Fund
FXN
$388M
$11.7K ﹤0.01%
+745
New +$11.4K
XRT icon
1707
State Street SPDR S&P Retail ETF
XRT
$639M
$11.6K ﹤0.01%
181
– –
XOP icon
1708
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.68B
$11.3K ﹤0.01%
88
+4
+5% +$501
KBWD icon
1709
Invesco KBW High Dividend Yield Financial ETF
KBWD
$427M
$11.3K ﹤0.01%
725
– –
IYM icon
1710
iShares US Basic Materials ETF
IYM
$1.02B
$11K ﹤0.01%
83
-765
-90% -$98.6K
HYLS icon
1711
First Trust Exchange-Traded Fund IV First Trust Tactical High Yield ETF
HYLS
$1.64B
$11K ﹤0.01%
277
-135
-33% -$5.34K
CHIK
1712
DELISTED
Global X MSCI China Information Technology ETF
CHIK
$10.8K ﹤0.01%
650
-291
-31% -$4.92K
ENFR icon
1713
Alerian Energy Infrastructure ETF
ENFR
$521M
$10.4K ﹤0.01%
475
– –
RFG icon
1714
Invesco S&P MidCap 400 Pure Growth ETF
RFG
$362M
$10.4K ﹤0.01%
265
– –
IDLV icon
1715
Invesco S&P International Developed Low Volatility ETF
IDLV
$344M
$10.3K ﹤0.01%
378
– –
EWS icon
1716
iShares MSCI Singapore ETF
EWS
$1.16B
$10.3K ﹤0.01%
554
-358
-39% -$6.94K
ASTR
1717
DELISTED
Astra Space, Inc. Class A Common Stock
ASTR
$10.2K ﹤0.01%
1,843
– –
CYB
1718
DELISTED
WisdomTree Chinese Yuan Strategy Fund
CYB
$9.64K ﹤0.01%
400
– –
FCVT icon
1719
First Trust SSI Strategic Convertible Securities ETF
FCVT
$103M
$9.63K ﹤0.01%
295
– –
EWQ icon
1720
iShares MSCI France ETF
EWQ
$333M
$9.59K ﹤0.01%
249
+1
+0.4% +$38
VNM icon
1721
VanEck Vietnam ETF
VNM
$514M
$9.31K ﹤0.01%
700
– –
WTV icon
1722
WisdomTree US Value Fund
WTV
$3.36B
$9.01K ﹤0.01%
144
– –
TRVN
1723
DELISTED
Trevena, Inc.
TRVN
$8.81K ﹤0.01%
+400
New +$9.79K
XHS icon
1724
State Street SPDR S&P Health Care Services ETF
XHS
$207M
$8.63K ﹤0.01%
92
– –
FXU icon
1725
First Trust Utilities AlphaDEX Fund
FXU
$827M
$8.3K ﹤0.01%
261
– –
67 68
69
70 71

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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.