Power Solutions International, Inc.
PSIX • OTC
Power Solutions International, Inc. is a publicly traded company on OTC, led by Constantine Xykis, with a market cap of $1.7B. As of Q3 2025, 24% of shares are held by 201 institutional investors, with BlackRock, Inc. as the largest holder at 2.4%.
CEOConstantine Xykis
Market Cap$1.7B
Overview
Overview of institutional ownership in PSIX as of Q3 2025 with a market cap of $2.3B
All Institutions
- Institutions
- 201
- Value Held
- $532.5M
- Shares Held
- 5.4M
- Avg Position
- $2.6M
- Median Position
- $491.1K
Hedge Funds
- Hedge Funds
- 31
- Value Held
- $123.2M
- Shares Held
- 1.3M
- Avg Position
- $4.0M
- Median Position
- $1.3M
Ownership Breakdown
Based on market cap of $2.3B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in PSIX as of Q3 2025
| Institution | Position Value |
|---|---|
 BlackRock, Inc. Institution | $54.2M 0.00% of portfolio |
 VANGUARD GROUP INC Institution | $49.3M 0.00% of portfolio |
 ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant | $31.9M 0.02% of portfolio |
B Busey Trust CO RIA/Wealth | $21.6M 0.60% of portfolio |
 MORGAN STANLEY RIA/Wealth | $19.4M 0.00% of portfolio |
 Portolan Capital Management, LLC Hedge Fund•Long/Short | $19.2M 1.04% of portfolio |
 Allspring Global Investments Holdings, LLC Long Only Manager | $19.0M 0.03% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $16.6M 0.00% of portfolio |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $13.6M 0.02% of portfolio |
 STATE STREET CORP Institution | $13.4M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for PSIX in Q3 2025
- Traded
- +$201.0M
- Buyers
- 156
- Sellers
- 44
- Total Bought
- +$275.7M
- Total Sold
- −$74.7M
- Avg Position
- $2.5M
Biggest Buyers
| Institution | Net Bought |
|---|---|
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant | +$24.7M +251.9K shares |
B Busey Trust CO RIA/Wealth | +$21.6M +220.0K shares |
Portolan Capital Management, LLC Hedge Fund•Long/Short | +$19.2M +195.8K shares |
Allspring Global Investments Holdings, LLC Long Only Manager | +$19.0M +206.1K shares |
MORGAN STANLEY RIA/Wealth | +$14.4M +146.1K shares |
VANGUARD GROUP INC Institution | +$13.8M +140.7K shares |
 DRIEHAUS CAPITAL MANAGEMENT LLC Hedge Fund•Event Driven | +$13.2M +134.5K shares |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | +$12.8M +130.3K shares |
 Invesco Ltd. ETF Provider | +$9.5M +96.5K shares |
H Hel Ved Capital Management Ltd Institution | +$6.7M +68.7K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 GAGNON SECURITIES LLC RIA/Wealth | −$27.2M −276.8K shares |
G Gagnon Advisors, LLC Hedge Fund•Long/Short | −$11.7M −180.4K shares |
 WELLS FARGO & COMPANY/MN Institution | −$6.9M −69.9K shares |
 TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | −$5.6M −57.3K shares |
 TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy | −$2.7M −27.2K shares |
S S Squared Technology, LLC Hedge Fund•Long/Short | −$2.6M −39.6K shares |
 O'SHAUGHNESSY ASSET MANAGEMENT, LLC Long Only Manager | −$2.5M −25.2K shares |
 GOLDMAN SACHS GROUP INC Institution | −$2.4M −24.7K shares |
 Valiant Capital Management, L.P. Hedge Fund•Long/Short | −$2.1M −21.6K shares |
T THOMPSON DAVIS & CO., INC. Institution | −$1.8M −18.2K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited PSIX in Q3 2025
- New Positions
- 77
- New Value
- $107.2M
- Exited Positions
- 13
- Exited Value
- $17.3M
New Positions
| Institution | Position Value |
|---|---|
B Busey Trust CO RIA/Wealth | $21.6M 220.0K shares |
Allspring Global Investments Holdings, LLC Long Only Manager | $19.0M 206.1K shares |
H Hel Ved Capital Management Ltd Institution | $6.7M 68.7K shares |
K KADENSA CAPITAL Ltd Institution | $5.9M 59.7K shares |
 Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy | $4.8M 48.6K shares |
 VICTORY CAPITAL MANAGEMENT INC Long Only Manager | $4.8M 48.6K shares |
M Mercuria Capital Strategies, LLC Institution | $4.6M 46.5K shares |
C Cubist Systematic Strategies, LLC Institution | $3.8M 39.0K shares |
 FRANKLIN RESOURCES INC Institution | $3.4M 34.2K shares |
D De Lisle Partners LLP Institution | $2.1M 21.0K shares |
Exited Positions
| Institution | Previous Position |
|---|---|
G Gagnon Advisors, LLC Hedge Fund•Long/Short | $11.7M 180.4K shares |
S S Squared Technology, LLC Hedge Fund•Long/Short | $2.6M 39.6K shares |
J Jump Financial, LLC Institution | $1.1M 16.9K shares |
 Change Path, LLC RIA/Wealth | $423.5K 6.5K shares |
 COZAD ASSET MANAGEMENT INC RIA/Wealth | $331.9K 5.1K shares |
 Arete Wealth Advisors, LLC RIA/Wealth | $306.9K 4.7K shares |
S State of Wyoming Institution | $278.9K 4.3K shares |
D DRW Securities, LLC Institution | $256.1K 4.0K shares |
 Kathmere Capital Management, LLC RIA/Wealth | $226.3K 3.5K shares |
 TWIN PEAKS WEALTH ADVISORS, LLC RIA/Wealth | $76.4K 800.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in PSIX as of Q3 2025
- Call Positions
- 5
- Call Value
- $20.4M
- Put Positions
- 4
- Put Value
- $18.1M
Call Positions
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $12.6M 1.3K contracts |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $3.4M 348.0 contracts |
W WOLVERINE TRADING, LLC Institution | $3.1M 298.0 contracts |
J JANE STREET GROUP, LLC Institution | $1.3M 134.0 contracts |
 Triumph Capital Management RIA/Wealth | $9.8K 1.0 contracts |
Put Positions
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $9.2M 938.0 contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $5.7M 578.0 contracts |
W WOLVERINE TRADING, LLC Institution | $1.7M 165.0 contracts |
J JANE STREET GROUP, LLC Institution | $1.5M 149.0 contracts |
Most Committed Institutions
Institutions with PSIX as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
M Mercuria Capital Strategies, LLC Institution | 6.02% $4.6M |
H Hel Ved Capital Management Ltd Institution | 3.92% $6.7M |
GAGNON SECURITIES LLC RIA/Wealth | 1.28% $6.4M |
Portolan Capital Management, LLC Hedge Fund•Long/Short | 1.04% $19.2M |
G Ground Swell Capital, LLC Hedge Fund•Multi-Strategy | 0.98% $449.9K |
 WESTBOURNE INVESTMENTS, INC. RIA/Wealth | 0.76% $1.6M |
 NAVELLIER & ASSOCIATES INC RIA/Wealth | 0.64% $6.3M |
K KADENSA CAPITAL Ltd Institution | 0.61% $5.9M |
B Busey Trust CO RIA/Wealth | 0.60% $21.6M |
 EAM Investors, LLC Long Only Manager | 0.57% $5.0M |
Hedge Fund Spotlight
Discover hedge funds investing in PSIX
ARROWSTREET CAPITAL LIMITED PARTNERSHIP
Hedge Fund • Quant
Portfolio ManagerAnthony Ryan
- Portfolio Value
- $158.94B
- Positions
- 1,828
- Last Reported
- Q3 2025
Sector Allocation
Position in Power Solutions International, Inc.
- Market Value
- $31.9M
- Shares Held
- 325.1K
- Portfolio Weight
- 0.02%
- Owned Since
- 2025-Q2
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Consumer Electronics Technology | $7.2B | 4.51% | |
Software - Infrastructure Technology | $6.5B | 4.11% | |
Semiconductors Technology | $4.8B | 3.02% |
