System1
35 hedge funds and large institutions have $17.9M invested in System1 in 2025 Q2 according to their latest regulatory filings, with 7 funds opening new positions, 10 increasing their positions, 16 reducing their positions, and 26 closing their positions.
36% more capital invested
Capital invested by funds: $13.2M → $17.9M (+$4.74M)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0.33% less ownership
Funds ownership: 4.64% → 4.31% (-0.33%)
35% less funds holding
Funds holding: 54 → 35 (-19)
38% less repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 16
73% less first-time investments, than exits
New positions opened: 7 | Existing positions closed: 26
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$190K |
| 2 |
Jane Street
New York
|
+$125K |
| 3 |
HF
HRT Financial
New York
|
+$52.7K |
| 4 |
Bank of America
Charlotte,
North Carolina
|
+$41.2K |
| 5 |
UBS Group
Zurich,
Switzerland
|
+$39.8K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$668K |
| 2 |
State Street
Boston,
Massachusetts
|
-$129K |
| 3 |
Geode Capital Management
Boston,
Massachusetts
|
-$115K |
| 4 |
Northern Trust
Chicago,
Illinois
|
-$87.4K |
| 5 |
Vanguard Group
Malvern,
Pennsylvania
|
-$69.1K |
SST Hedge Fund Activity: Q2 2025 in Review
35 of the 7,598 institutional investors tracked by Wall St. Rank reported a position in System1 (SST) for Q2 2025, worth a combined $17.9M — up 36% from $13.2M a quarter earlier.
Sellers outnumbered buyers: 26 funds closed out of SST and 7 opened new positions — a net loss of 19 holders — while 16 trimmed existing stakes and 10 added.
The largest buyer was Millennium Management, opening a new position worth an estimated $190K. The largest seller was BlackRock, cutting an estimated $668K.
- 35 institutional investors held System1 (SST) as of Q2 2025, down from 54 in Q1 2025.
- Funds reported $17.9M of System1 stock for Q2 2025, up 36% quarter-over-quarter.
- 7 funds opened new System1 positions in Q2 2025 and 26 closed out, a net change of -19 holders.
- The largest System1 buyer in Q2 2025 was Millennium Management, an estimated $190K added.
- The largest System1 seller in Q2 2025 was BlackRock, an estimated $668K sold.
Based on aggregated 13F filings for Q2 2025.