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Arm
ARM

Overview Fund Activity

621 hedge funds and large institutions have $7.97B invested in Arm in 2025 Q1 according to their latest regulatory filings, with 106 funds opening new positions, 248 increasing their positions, 172 reducing their positions, and 97 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
621
Holders Change
-8
Holders Change %
-1.27%
% of All Funds
8.44%
Holding in Top 10
12
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-14.29%
% of All Funds
0.16%
New
106
Increased
248
Reduced
172
Closed
97
Calls
$3.62B
Puts
$3.41B
Net Calls
+$209M
Net Calls Change
-$162M

Top Buyers

1
Capital World Investors
1
Capital World Investors
California
$527M
2
SGA
2
Sustainable Growth Advisers
Connecticut
$170M
3
DZ Bank
3
DZ Bank
Germany
$556M
4
BNP Paribas Financial Markets
4
BNP Paribas Financial Markets
France
$234M
5
UBS Group
5
UBS Group
Switzerland
$305M

Top Sellers

1
Hudson Bay Capital Management
1
Hudson Bay Capital Management
Connecticut
$0
2
Parallax Volatility Advisers
2
Parallax Volatility Advisers
California
$25.7M
3
Verition Fund Management
3
Verition Fund Management
Connecticut
$19.5M
4
Acadian Asset Management
4
Acadian Asset Management
Massachusetts
$12.2M
5
Tiger Global Management
5
Tiger Global Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Simplex Trading
51
Simplex Trading
Illinois
$27M +$7.16M +67,022 +36%
IMC Chicago
52
IMC Chicago
Illinois
$27M -$18.4M -172,476 -41%
MAM
53
Mark Asset Management
New York
$25.8M +$4.27M +39,996 +20%
Parallax Volatility Advisers
54
Parallax Volatility Advisers
California
$25.7M -$47.2M -441,595 -65%
VA
55
Vident Advisory
Georgia
$25.2M +$11.8M +110,290 +88%
Deutsche Bank
56
Deutsche Bank
Germany
$24.9M +$3.02M +28,244 +14%
JPMorgan Chase & Co
57
JPMorgan Chase & Co
New York
$24.6M +$11.5M +96,294 +88%
Citadel Advisors
58
Citadel Advisors
Florida
$24.5M -$21.8M -204,089 -47%
MCM
59
Marsico Capital Management
Colorado
$22.2M -$951K -8,903 -4%
VOYA Investment Management
60
VOYA Investment Management
Georgia
$21.9M -$942K -8,846 -4%
Royal Bank of Canada
61
Royal Bank of Canada
Ontario, Canada
$20.5M +$3.51M +32,876 +21%
NC
62
NZS Capital
Colorado
$20.4M +$5.96M +55,797 +41%
LIP
63
Liontrust Investment Partners
United Kingdom
$20.4M +$7.9M +73,952 +63%
Ameriprise
64
Ameriprise
Minnesota
$20.2M +$719K +6,736 +4%
JFG
65
Jefferies Financial Group
New York
$19.6M +$19.6M +183,212 New
Verition Fund Management
66
Verition Fund Management
Connecticut
$19.5M -$44M -411,880 -69%
ACM
67
Altimeter Capital Management
Massachusetts
$18.8M +$18.8M +175,600 New
Swedbank
68
Swedbank
Sweden
$18.7M +$18.7M +174,800 New
ProShare Advisors
69
ProShare Advisors
Maryland
$18.7M +$2.76M +25,845 +17%
AllianceBernstein
70
AllianceBernstein
Tennessee
$17.5M +$5.43M +50,889 +45%
Legal & General Group
71
Legal & General Group
United Kingdom
$17.2M -$1.89M -17,721 -10%
DSAM
72
Dock Street Asset Management
Florida
$16.2M +$10.9M +102,310 +209%
Bank of Montreal
73
Bank of Montreal
Ontario, Canada
$15.6M +$10.6M +99,132 +211%
EIM
74
Elliott Investment Management
Florida
$14.9M -$1.12M -10,449 -7%
NM
75
NWI Management
New York
$14.4M +$14.4M +135,000 New
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