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One Stop Systems
OSS

108 hedge funds and large institutions have $193M invested in One Stop Systems in 2026 Q2 according to their latest regulatory filings, with 51 funds opening new positions, 27 increasing their positions, 24 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

206% more capital invested

Capital invested by funds: $63.1M → $193M (+$130M)

168% more first-time investments, than exits

New positions opened: 51 | Existing positions closed: 19

40% more funds holding

Funds holding: 77 → 108 (+31)

13% more repeat investments, than reductions

Existing positions increased: 27 | Existing positions reduced: 24

9.37% more ownership

Funds ownership: 33.69% → 43.05% (+9.4%)

11% less call options, than puts

Call options by funds: $28.3M | Put options by funds: $31.8M

Holders
108
Holders Change
+31
Holders Change %
+40.26%
% of All Funds
1.3%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
51
Increased
27
Reduced
24
Closed
19
Calls
$28.3M
Puts
$31.8M
Net Calls
-$3.42M
Net Calls Change
-$7.77M

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$17.3M
2
Jane Street
Jane Street
New York
+$6.06M
3
PIP
Palisades Investment Partners
California
+$5.77M
4
Geode Capital Management
Geode Capital Management
Massachusetts
+$4.46M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
+$4.44M

Top Sellers

Rank Fund Capital Flow
1
Morgan Stanley
Morgan Stanley
New York
-$4.78M
2
UBS Group
UBS Group
Switzerland
-$4.66M
3
Citadel Advisors
Citadel Advisors
Florida
-$3.97M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$3.29M
5
Marshall Wace
Marshall Wace
United Kingdom
-$3.17M

OSS Hedge Fund Activity: Q2 2026 in Review

108 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in One Stop Systems (OSS) for Q2 2026, worth a combined $193M — up 206% from $63.1M a quarter earlier.

Buyers outnumbered sellers: 51 funds opened new OSS positions and 19 closed out — a net gain of 32 holders — while 27 added to existing stakes and 24 trimmed.

The largest buyer was BlackRock, adding an estimated $17.3M. The largest seller was Morgan Stanley, cutting an estimated $4.78M.

  • 108 institutional investors held One Stop Systems (OSS) as of Q2 2026, up from 77 in Q1 2026.
  • Funds reported $193M of One Stop Systems stock for Q2 2026, up 206% quarter-over-quarter.
  • 51 funds opened new One Stop Systems positions in Q2 2026 and 19 closed out, a net change of +32 holders.
  • The largest One Stop Systems buyer in Q2 2026 was BlackRock, an estimated $17.3M added.
  • The largest One Stop Systems seller in Q2 2026 was Morgan Stanley, an estimated $4.78M sold.

Based on aggregated 13F filings for Q2 2026.