Power Solutions International
PSIX
203 hedge funds and large institutions have $419M invested in Power Solutions International in 2026 Q1 according to their latest regulatory filings, with 55 funds opening new positions, 64 increasing their positions, 51 reducing their positions, and 44 closing their positions.
81% more call options, than puts
Call options by funds: $21.5M | Put options by funds: $11.9M
49% more capital inflows, than outflows
Capital inflows: $154M | Capital outflows: $104M
25% more repeat investments, than reductions
Existing positions increased: 64 | Existing positions reduced: 51
25% more first-time investments, than exits
New positions opened: 55 | Existing positions closed: 44
4% more funds holding
Funds holding: 195 → 203 (+8)
0.01% less ownership
Funds ownership: 29.74% → 29.73% (-0.01%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SG Americas Securities
New York
|
+$15.3M |
| 2 |
Barclays
London,
United Kingdom
|
+$15.1M |
| 3 |
Danske Bank
Copenhagen K,
Denmark
|
+$8.68M |
| 4 |
Dimensional Fund Advisors
Austin,
Texas
|
+$5.8M |
| 5 |
OnyxPoint Global Management
New York
|
+$5.56M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Driehaus Capital Management
Chicago,
Illinois
|
-$13.1M |
| 2 |
Antipodes Partners
Royal Exchange,
Australia
|
-$12.5M |
| 3 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$7.26M |
| 4 |
Renaissance Technologies
New York
|
-$6.17M |
| 5 |
Beacon Harbor Wealth Advisors
Virginia Beach,
Virginia
|
-$5.9M |
PSIX Hedge Fund Activity: Q1 2026 in Review
203 of the 8,217 institutional investors tracked by Wall St. Rank reported a position in Power Solutions International (PSIX) for Q1 2026, worth a combined $419M — up 6.6% from $393M a quarter earlier.
Buyers outnumbered sellers: 55 funds opened new PSIX positions and 44 closed out — a net gain of 11 holders — while 64 added to existing stakes and 51 trimmed.
The largest buyer was SG Americas Securities, adding an estimated $15.3M. The largest seller was Driehaus Capital Management, exiting entirely with an estimated $13.1M sold.
- 203 institutional investors held Power Solutions International (PSIX) as of Q1 2026, up from 195 in Q4 2025.
- Funds reported $419M of Power Solutions International stock for Q1 2026, up 6.6% quarter-over-quarter.
- 55 funds opened new Power Solutions International positions in Q1 2026 and 44 closed out, a net change of +11 holders.
- The largest Power Solutions International buyer in Q1 2026 was SG Americas Securities, an estimated $15.3M added.
- The largest Power Solutions International seller in Q1 2026 was Driehaus Capital Management, an estimated $13.1M sold.
Based on aggregated 13F filings for Q1 2026.