We are live on ! Find out more
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
+19.08%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+606.62%
AUM
$38.4B
AUM Growth
+$3.49B
Cap. Flow
-$792M
Cap. Flow %
-2.06%
Top 10 Hldgs %
26.32%
Holding
2,083
New
163
Increased
891
Reduced
708
Closed
85

Top Buys

Rank Stock Value
1
HONA
Honeywell Aerospace
HONA
+$100M
2
ANET icon
Arista Networks
ANET
+$71.2M
3
RSP icon
Invesco S&P 500 Equal Weight ETF
RSP
+$61.8M
4
VTI icon
Vanguard Morningstar Total Stock Market ETF
VTI
+$55.8M
5
MIAX
Miami International Holdings
MIAX
+$49.4M

Top Sells

Rank Stock Value
1
XOM icon
ExxonMobil
XOM
+$161M
2
CPRT icon
Copart
CPRT
+$62M
3
DHR icon
Danaher
DHR
+$59.1M
4
AAPL icon
Apple
AAPL
+$57M
5
VEEV icon
Veeva Systems
VEEV
+$52.2M

Sector Composition

Rank Sector Weight
1 Technology 24.38%
2 Miscellaneous 18.67%
3 Industrials 15.24%
4 Financials 11.07%
5 Healthcare 9.11%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
IAI icon
1776
iShares US Broker-Dealers & Securities Exchanges ETF
IAI
$1.39B
$48K ﹤0.01%
274
– –
SLQT icon
1777
SelectQuote
SLQT
$88.3M
$47.9K ﹤0.01%
56,908
+1,814
+3% +$1.65K
XTL icon
1778
State Street SPDR S&P Telecom ETF
XTL
$548M
$46.9K ﹤0.01%
206
– –
EWH icon
1779
iShares MSCI Hong Kong ETF
EWH
$1.18B
$45.8K ﹤0.01%
2,191
-550
-20% -$12.7K
BBH icon
1780
VanEck Biotech ETF
BBH
$466M
$45.7K ﹤0.01%
225
– –
IWL icon
1781
iShares Russell Top 200 ETF
IWL
$2.19B
$45.1K ﹤0.01%
244
+104
+74% +$18.7K
EWG icon
1782
iShares MSCI Germany ETF
EWG
$1.69B
$44.4K ﹤0.01%
1,073
+101
+10% +$4.25K
VTWV icon
1783
Vanguard Russell 2000 Value ETF
VTWV
$1.36B
$43.8K ﹤0.01%
+224
New +$41.3K
SCHH icon
1784
Schwab US REIT ETF
SCHH
$11B
$43.6K ﹤0.01%
1,841
-2,717
-60% -$63.3K
FYX icon
1785
First Trust Small Cap Core AlphaDEX Fund
FYX
$1.38B
$43.3K ﹤0.01%
300
-24
-7% -$3.19K
TMCI icon
1786
Treace Medical Concepts
TMCI
$301M
$43.2K ﹤0.01%
10,846
+364
+3% +$1K
NUMG icon
1787
Nuveen ESG Mid-Cap Growth ETF
NUMG
$347M
$42.9K ﹤0.01%
913
– –
BA.PRA
1788
Boeing Co 6.00% Series A Preferred Stock
BA.PRA
$7.48B
$42.3K ﹤0.01%
629
-194
-24% -$13.7K
DES icon
1789
WisdomTree US SmallCap Dividend Fund
DES
$2.14B
$42.1K ﹤0.01%
1,034
– –
ITM icon
1790
VanEck Intermediate Muni ETF
ITM
$2.03B
$40.7K ﹤0.01%
867
– –
FNCL icon
1791
Fidelity MSCI Financials Index ETF
FNCL
$2.38B
$40.1K ﹤0.01%
524
-153
-23% -$11.3K
UAA icon
1792
Under Armour
UAA
$2.16B
$38.6K ﹤0.01%
6,045
-707
-10% -$4.19K
IVA
1793
Inventiva
IVA
$917M
$37.8K ﹤0.01%
10,000
– –
GVIP icon
1794
Goldman Sachs Hedge Industry VIP ETF
GVIP
$573M
$37.7K ﹤0.01%
+200
New +$34.3K
IMCB icon
1795
iShares Morningstar Mid-Cap ETF
IMCB
$1.69B
$37.7K ﹤0.01%
390
– –
GSUS icon
1796
Goldman Sachs MarketBeta US Equity ETF
GSUS
$3.41B
$36.1K ﹤0.01%
350
-150
-30% -$15K
IGE icon
1797
iShares North American Natural Resources ETF
IGE
$794M
$35.9K ﹤0.01%
638
-327
-34% -$19.8K
AAXJ icon
1798
iShares MSCI All Country Asia ex Japan ETF
AAXJ
$3.89B
$35.3K ﹤0.01%
296
– –
SH icon
1799
ProShares Short S&P500
SH
$916M
$35.2K ﹤0.01%
1,066
-18,547
-95% -$635K
STPZ icon
1800
PIMCO 1-5 Year US TIPS Index Exchange-Traded Fund
STPZ
$518M
$34.4K ﹤0.01%
645
– –
70 71
72
73 74

Similar funds

Bank Julius Baer & Co
Bank Julius Baer & Co Zurich, Switzerland $38.6B AUM 35.31% 1-Year Est. Return
Public Sector Pension Investment Board (PSP Investments)
Public Sector Pension Investment Board (PSP Investments) Montreal, Quebec, Canada $38.7B AUM 44.46% 1-Year Est. Return
Chevy Chase Trust
Chevy Chase Trust Bethesda, Maryland $38.8B AUM 41.35% 1-Year Est. Return
TWC
TD Waterhouse Canada Toronto, Ontario, Canada $38B AUM 39.14% 1-Year Est. Return
Treasurer of the State of North Carolina
Treasurer of the State of North Carolina Raleigh, North Carolina $38.8B AUM 40.77% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return
PIF
Public Investment Fund Al Aqiq District, Riyadh, Saudi Arabia $37.9B AUM 7.98% 1-Year Est. Return
Asset Management One
Asset Management One Tokyo, Japan $39B AUM 37.51% 1-Year Est. Return

William Blair & Company's Q2 2026 Portfolio in Review

As of Q2 2026, William Blair & Company held 2,083 positions worth $38.4B, up 10% from $34.9B the previous quarter. Its ten largest holdings account for 26% of the portfolio.

William Blair & Company's Q2 2026 filing shows 163 new, 891 increased, 708 reduced and 85 closed positions. Its largest new stake was Honeywell Aerospace: 454,071 shares worth $100M. The largest sale was ExxonMobil, an estimated $161M.

By sector, the portfolio is most concentrated in Technology at 24% of assets, up from 22% a quarter earlier, followed by Miscellaneous and Industrials.

  • William Blair & Company's largest Q2 2026 buy was Honeywell Aerospace: 454,071 shares worth $100M.
  • William Blair & Company added most to Arista Networks in Q2 2026, an estimated $71.2M increase.
  • William Blair & Company's biggest Q2 2026 reduction was Copart, cutting an estimated $62M.
  • William Blair & Company fully exited ExxonMobil in Q2 2026, selling an estimated $161M.
  • William Blair & Company's ten largest holdings make up 26% of its $38.4B portfolio in Q2 2026.
  • William Blair & Company opened 163 new positions and closed 85 in Q2 2026.
  • William Blair & Company's portfolio value rose 10% quarter-over-quarter to $38.4B.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.