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PSIX

Power Solutions International
PSIX

201 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, 50 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed

81% more call options, than puts

Call options by funds: $21.5M | Put options by funds: $11.9M

28% more repeat investments, than reductions

Existing positions increased: 64 | Existing positions reduced: 50

28% more first-time investments, than exits

New positions opened: 55 | Existing positions closed: 43

7% more capital invested

Capital invested by funds: $393M → $419M (+$26M)

4% more funds holding

Funds holding: 193 → 201 (+8)

0% more ownership

Funds ownership: 29.71% → 29.72% (+0%)

Holders
201
Holders Change
+8
Holders Change %
+4.15%
% of All Funds
2.47%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
% of All Funds
0.02%
New
55
Increased
64
Reduced
50
Closed
43
Calls
$21.5M
Puts
$11.9M
Net Calls
+$9.58M
Net Calls Change
+$8.26M

Top Buyers

1
SG Americas Securities
SG Americas Securities
New York
+$15.3M
2
Barclays
Barclays
United Kingdom
+$15.1M
3
DB
Danske Bank
Denmark
+$8.68M
4
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$5.8M
5
OGM
OnyxPoint Global Management
New York
+$5.56M

Top Sellers

1
DCM
Driehaus Capital Management
Illinois
-$13.1M
2
AP
Antipodes Partners
Australia
-$12.5M
3
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
-$7.26M
4
Renaissance Technologies
Renaissance Technologies
New York
-$6.17M
5
BHWA
Beacon Harbor Wealth Advisors
Virginia
-$5.9M
Name Holding Trade Value Shares
Change 		Change in
Stake
Federated Hermes
51
Federated Hermes
Pennsylvania
$1.63M +$1.9M +26,593 +10,388%
OAM
52
OP Asset Management
$1.55M +$1.59M +22,306 +712%
TFS
53
Thoroughbred Financial Services
Tennessee
$1.46M -$60.1K -842 -3%
DLP
54
De Lisle Partners
United Kingdom
$1.28M – – –
DE
55
Defiance ETFs
New York
$1.27M +$1.49M +20,868 New
OSAM
56
O'Shaughnessy Asset Management
Connecticut
$1.12M -$849K -11,896 -39%
Swiss National Bank
57
Swiss National Bank
Switzerland
$1.11M – – –
WEG
58
World Equity Group
Illinois
$1.08M +$148K +2,068 +13%
N
59
Nuveen
North Carolina
$1.01M +$6.99K +98 +0.6%
AIM
60
ARGA Investment Management
Connecticut
$989K +$1.16M +16,238 New
HWAM
61
Hennion & Walsh Asset Management
New Jersey
$983K +$511K +7,160 +80%
PCMH
62
Polymer Capital Management (HK)
Hong Kong
$974K +$1.14M +16,000 New
MWM
63
Moran Wealth Management
Florida
$970K +$500K +7,002 +78%
GAM
64
Gotham Asset Management
New York
$969K -$161K -2,262 -12%
CCFM
65
Clear Creek Financial Management
Washington
$955K +$17K +238 +2%
Russell Investments Group
66
Russell Investments Group
United Kingdom
$944K +$34.9K +489 +3%
CCAM
67
Capelight Capital Asset Management
New York
$913K +$1.07M +15,000 New
AG
68
Algert Global
California
$883K +$163K +2,290 +19%
UBS AM
69
UBS AM
Illinois
$837K +$212K +2,977 +28%
Squarepoint
70
Squarepoint
New York
$827K +$969K +13,586 New
New York State Common Retirement Fund
71
New York State Common Retirement Fund
New York
$824K +$816K +11,434 +544%
Osaic Holdings
72
Osaic Holdings
Arizona
$814K -$1.28M -17,926 -57%
ORI
73
Oak Ridge Investments
Illinois
$810K +$949K +13,307 New
BNP Paribas Financial Markets
74
BNP Paribas Financial Markets
France
$801K +$278K +3,891 +42%
Qube Research & Technologies (QRT)
75
Qube Research & Technologies (QRT)
United Kingdom
$763K -$7.26M -101,711 -89%
1 2
3
4 5

PSIX Hedge Fund Activity: Q1 2026 in Review

201 of the 8,126 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 43 closed out — a net gain of 12 holders — while 64 added to existing stakes and 50 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.

  • 201 institutional investors held Power Solutions International (PSIX) as of Q1 2026, up from 193 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 43 closed out, a net change of +12 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.