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
FXE icon
751
Invesco CurrencyShares Euro Currency Trust
FXE
$379M
$2.07M 0.01%
19,676
-105
-0.5% -$11.3K
EPI icon
752
WisdomTree India Earnings Fund ETF
EPI
$1.94B
$2.07M 0.01%
48,367
+1,313
+3% +$56K
DTE icon
753
DTE Energy
DTE
$25.3B
$2.05M 0.01%
13,475
+1,549
+13% +$226K
QTEC icon
754
First Trust NASDAQ-100 Technology Index Fund
QTEC
$4.91B
$2.03M 0.01%
6,066
– –
F icon
755
Ford
F
$50.7B
$2.01M 0.01%
144,426
+9,555
+7% +$129K
MAIN icon
756
Main Street Capital
MAIN
$5.15B
$2.01M 0.01%
38,675
-365
-0.9% -$19.2K
VGIT icon
757
Vanguard Intermediate-Term Treasury ETF
VGIT
$38.9B
$2M 0.01%
33,992
-13,851
-29% -$818K
ESGU icon
758
iShares ESG Aware MSCI USA ETF
ESGU
$18.2B
$1.99M 0.01%
12,143
+379
+3% +$59.9K
VICR icon
759
Vicor
VICR
$13B
$1.97M 0.01%
5,181
+512
+11% +$140K
GUNR icon
760
Northern Trust Morningstar Global Upstream Natural Resources ETF
GUNR
$6.98B
$1.96M 0.01%
39,873
+16,859
+73% +$907K
GM icon
761
General Motors
GM
$72.5B
$1.96M 0.01%
25,465
-3,355
-12% -$264K
FLS icon
762
Flowserve
FLS
$9.38B
$1.96M 0.01%
26,453
-3,141
-11% -$239K
FCNCA icon
763
First Citizens BancShares
FCNCA
$23.6B
$1.96M 0.01%
941
-26
-3% -$52.1K
IJJ icon
764
iShares S&P Mid-Cap 400 Value ETF
IJJ
$8.46B
$1.96M 0.01%
13,248
+1,288
+11% +$182K
RHI icon
765
Robert Half
RHI
$3.78B
$1.94M 0.01%
63,296
+26,886
+74% +$753K
XLP icon
766
State Street Consumer Staples Select Sector SPDR ETF
XLP
$13.8B
$1.94M 0.01%
23,357
+6,153
+36% +$514K
CRCL
767
Circle Internet Group
CRCL
$22.6B
$1.94M 0.01%
30,952
-7,978
-20% -$776K
DNTH icon
768
Dianthus Therapeutics
DNTH
$4.95B
$1.93M 0.01%
19,779
+1,498
+8% +$131K
AWK icon
769
American Water Works
AWK
$26B
$1.93M 0.01%
14,642
+1,685
+13% +$217K
RELY icon
770
Remitly
RELY
$4.52B
$1.92M 0.01%
85,825
+7,566
+10% +$155K
WWD icon
771
Woodward
WWD
$19.5B
$1.92M 0.01%
4,520
-96
-2% -$36.4K
VV icon
772
Vanguard Morningstar Large-Cap ETF
VV
$54.8B
$1.92M 0.01%
5,586
+36
+0.6% +$12K
EA
773
DELISTED
Electronic Arts
EA
$1.92M 0.01%
9,367
+123
+1% +$24.9K
OTIS icon
774
Otis Worldwide
OTIS
$25.1B
$1.9M 0.01%
26,559
+1,815
+7% +$136K
HIG icon
775
Hartford Financial Services
HIG
$33.7B
$1.9M 0.01%
14,346
+6,035
+73% +$807K
29 30
31
32 33

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.