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ECARX Holdings
ECX

35 hedge funds and large institutions have $38.5M invested in ECARX Holdings in 2025 Q3 according to their latest regulatory filings, with 11 funds opening new positions, 9 increasing their positions, 8 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed

175% more first-time investments, than exits

New positions opened: 11 | Existing positions closed: 4

25% more funds holding

Funds holding: 28 → 35 (+7)

16% more capital invested

Capital invested by funds: $33.1M → $38.5M (+$5.45M)

13% more repeat investments, than reductions

Existing positions increased: 9 | Existing positions reduced: 8

0.94% more ownership

Funds ownership: 5.15% → 6.08% (+0.94%)

Holders
35
Holders Change
+7
Holders Change %
+25%
% of All Funds
0.46%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
11
Increased
9
Reduced
8
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Tudor Investment Corp
Tudor Investment Corp
Connecticut
+$1.84M
2
Citadel Advisors
Citadel Advisors
Florida
+$1.81M
3
Jane Street
Jane Street
New York
+$1.39M
4
Renaissance Technologies
Renaissance Technologies
New York
+$684K
5
XT
XTX Topco
Cayman Islands
+$269K

Top Sellers

Rank Fund Capital Flow
1
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
-$606K
2
Goldman Sachs
Goldman Sachs
New York
-$487K
3
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management
Japan
-$160K
4
TRCT
Tower Research Capital (TRC)
New York
-$70.8K
5
EGM
Engineers Gate Manager
New York
-$68.1K
Name Holding Trade Value Shares
Change 		Change in
Stake
Susquehanna International Group
1
Susquehanna International Group
Pennsylvania
$10.2M – – –
Barclays
2
Barclays
United Kingdom
$6.82M – – –
State Street
3
State Street
Massachusetts
$4.16M +$149K +84,027 +4%
Tudor Investment Corp
4
Tudor Investment Corp
Connecticut
$2.57M +$1.84M +1,038,476 +430%
Renaissance Technologies
5
Renaissance Technologies
New York
$2.36M +$684K +385,400 +49%
Legal & General Group
6
Legal & General Group
United Kingdom
$2.32M +$29.1K +16,420 +1%
Citadel Advisors
7
Citadel Advisors
Florida
$2.05M +$1.81M +1,021,931 New
UBS Group
8
UBS Group
Switzerland
$1.91M +$196K +110,243 +13%
Jane Street
9
Jane Street
New York
$1.58M +$1.39M +784,776 New
Mitsubishi UFJ Asset Management
10
Mitsubishi UFJ Asset Management
Japan
$1.51M -$160K -90,026 -11%
Invesco
11
Invesco
Georgia
$502K -$7.28K -4,105 -2%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$419K – – –
Goldman Sachs
13
Goldman Sachs
New York
$385K -$487K -274,667 -59%
XT
14
XTX Topco
Cayman Islands
$305K +$269K +151,656 New
MG
15
Marex Group
$215K +$190K +107,000 New
Arrowstreet Capital
16
Arrowstreet Capital
Massachusetts
$183K -$606K -341,641 -79%
SOW
17
State of Wyoming
Wyoming
$139K -$22.5K -12,696 -16%
GAA
18
Green Alpha Advisors
Colorado
$130K -$8.48K -4,779 -7%
Verition Fund Management
19
Verition Fund Management
Connecticut
$126K – – –
Northern Trust
20
Northern Trust
Illinois
$115K -$35.4K -19,983 -26%
QC
21
Quadrature Capital
United Kingdom
$101K +$89.8K +50,598 New
Pathstone Holdings
22
Pathstone Holdings
New Jersey
$90K -$15.6K -8,771 -16%
Squarepoint
23
Squarepoint
New York
$59.3K +$52.3K +29,497 New
TSS
24
Two Sigma Securities
New York
$51K +$45.1K +25,398 New
IWC
25
Integrated Wealth Concepts
Massachusetts
$50.5K +$44.6K +25,143 New
1
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ECX Hedge Fund Activity: Q3 2025 in Review

35 of the 7,626 institutional investors tracked by Wall St. Rank reported a position in ECARX Holdings (ECX) for Q3 2025, worth a combined $38.5M — up 16% from $33.1M a quarter earlier.

Buyers outnumbered sellers: 11 funds opened new ECX positions and 4 closed out — a net gain of 7 holders — while 9 added to existing stakes and 8 trimmed.

The largest buyer was Tudor Investment Corp, adding an estimated $1.84M. The largest seller was Arrowstreet Capital, cutting an estimated $606K.

  • 35 institutional investors held ECARX Holdings (ECX) as of Q3 2025, up from 28 in Q2 2025.
  • Funds reported $38.5M of ECARX Holdings stock for Q3 2025, up 16% quarter-over-quarter.
  • 11 funds opened new ECARX Holdings positions in Q3 2025 and 4 closed out, a net change of +7 holders.
  • The largest ECARX Holdings buyer in Q3 2025 was Tudor Investment Corp, an estimated $1.84M added.
  • The largest ECARX Holdings seller in Q3 2025 was Arrowstreet Capital, an estimated $606K sold.

Based on aggregated 13F filings for Q3 2025.