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One Stop Systems
OSS

Overview Fund Activity

33 hedge funds and large institutions have $12.3M invested in One Stop Systems in 2025 Q1 according to their latest regulatory filings, with 4 funds opening new positions, 16 increasing their positions, 7 reducing their positions, and 8 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
33
Holders Change
-4
Holders Change %
-10.81%
% of All Funds
0.45%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
4
Increased
16
Reduced
7
Closed
8
Calls
$55K
Puts
$113K
Net Calls
-$58K
Net Calls Change
+$27K

Top Buyers

1
ACM
Archon Capital Management
Washington
$355K
2
Marshall Wace
Marshall Wace
United Kingdom
$89.9K
3
Vanguard Group
Vanguard Group
Pennsylvania
$1.7M
4
Renaissance Technologies
Renaissance Technologies
New York
$215K
5
GCP
GSA Capital Partners
United Kingdom
$30K

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
$70.6K
2
Millennium Management
Millennium Management
New York
$0
3
TSS
Two Sigma Securities
New York
$0
4
VF
Virtu Financial
New York
$0
5
DC
Diametric Capital
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
JPMorgan Chase & Co
26
JPMorgan Chase & Co
New York
$8.64K +$8.55K +3,684 +9,446%
TRCT
27
Tower Research Capital (TRC)
New York
$4.06K +$3.07K +1,325 +313%
MCM
28
MAI Capital Management
Ohio
$3.34K – – –
Wells Fargo
29
Wells Fargo
California
$2.32K – – –
Lazard Asset Management
30
Lazard Asset Management
New York
$1K +$639 +540 +177%
SS
31
SBI Securities
Japan
$698 +$696 +300 +30,000%
Bank of America
32
Bank of America
North Carolina
$350 +$16 +7 +5%
OP
33
ORG Partners
Indiana
$279 +$279 +120 New
Millennium Management
34
Millennium Management
New York
– -$142K -42,277 Closed
TSS
35
Two Sigma Securities
New York
– -$109K -32,560 Closed
VF
36
Virtu Financial
New York
– -$72K -21,639 Closed
DC
37
Diametric Capital
Massachusetts
– -$62.7K -18,721 Closed
SFG
38
Sovereign Financial Group
Connecticut
– -$59.3K -17,715 Closed
XT
39
XTX Topco
Cayman Islands
– -$36.4K -10,878 Closed
Wolverine Trading
40
Wolverine Trading
Illinois
– -$37.1K -10,511 Closed
Osaic Holdings
41
Osaic Holdings
Arizona
– -$1.68K -500 Closed
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