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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
LONA
1501
LeonaBio Inc
LONA
$73.9M
$106K ﹤0.01%
3,605
– –
BJUL icon
1502
Innovator US Equity Buffer ETF July
BJUL
$353M
$106K ﹤0.01%
3,000
– –
CWI icon
1503
State Street SPDR MSCI ACWI ex-US ETF
CWI
$2.87B
$105K ﹤0.01%
4,036
+6
+0.1% +$156
EAGG icon
1504
iShares ESG Aware US Aggregate Bond ETF
EAGG
$4.97B
$105K ﹤0.01%
2,221
+8
+0.4% +$381
EQAL icon
1505
Invesco Russell 1000 Equal Weight ETF
EQAL
$844M
$104K ﹤0.01%
2,489
+982
+65% +$39.8K
IGF icon
1506
iShares Global Infrastructure ETF
IGF
$10.7B
$99.9K ﹤0.01%
2,128
-47
-2% -$2.24K
BOND icon
1507
PIMCO Active Bond Exchange-Traded Fund
BOND
$8.47B
$98.5K ﹤0.01%
1,075
– –
VTHR icon
1508
Vanguard Russell 3000 ETF
VTHR
$4.85B
$97.7K ﹤0.01%
495
-6,618
-93% -$1.24M
IYG icon
1509
iShares US Financial Services ETF
IYG
$2.22B
$97.4K ﹤0.01%
1,851
+3
+0.2% +$152
CNYA icon
1510
iShares MSCI China A ETF
CNYA
$208M
$97.3K ﹤0.01%
3,333
-1,100
-25% -$34.2K
RSPM icon
1511
Invesco S&P 500 Equal Weight Materials ETF
RSPM
$184M
$97.2K ﹤0.01%
2,995
– –
SPHD icon
1512
Invesco S&P 500 High Dividend Low Volatility ETF
SPHD
$3.39B
$96.8K ﹤0.01%
2,341
+74
+3% +$3.04K
ATOM icon
1513
Atomera
ATOM
$216M
$96.7K ﹤0.01%
11,025
– –
TCS
1514
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
$95.8K ﹤0.01%
2,033
+366
+22% +$16.3K
IOO icon
1515
iShares Global 100 ETF
IOO
$9.43B
$94.8K ﹤0.01%
1,247
+13
+1% +$949
ILF icon
1516
iShares Latin America 40 ETF
ILF
$3.71B
$93.7K ﹤0.01%
3,447
+19
+0.6% +$484
SEAT icon
1517
Vivid Seats
SEAT
$81.6M
$93.4K ﹤0.01%
+590
New +$92K
BDSX icon
1518
Biodesix
BDSX
$256M
$92K ﹤0.01%
3,740
+1,250
+50% +$37.5K
DVYE icon
1519
iShares Emerging Markets Dividend ETF
DVYE
$1.21B
$90.6K ﹤0.01%
3,698
+58
+2% +$1.44K
MORT icon
1520
VanEck Mortgage REIT Income ETF
MORT
$373M
$90.1K ﹤0.01%
7,500
+6,000
+400% +$65.7K
WT icon
1521
WisdomTree
WT
$3.44B
$89.2K ﹤0.01%
+13,000
New +$86.9K
XHB icon
1522
State Street SPDR S&P Homebuilders ETF
XHB
$1.58B
$86.2K ﹤0.01%
1,074
+1
+0.1% +$72
ORGN
1523
DELISTED
Origin Materials
ORGN
$85.2K ﹤0.01%
667
– –
AG icon
1524
First Majestic Silver
AG
$9.44B
$85K ﹤0.01%
15,036
-6
-0% -$38
PGJ icon
1525
Invesco Golden Dragon China ETF
PGJ
$95.1M
$81.2K ﹤0.01%
3,050
+200
+7% +$5.37K
59 60
61
62 63

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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.