Arrowstreet Capital
PSIX

Arrowstreet Capital’s Power Solutions International PSIX Stock Holding History

Arrowstreet Capital’s Portfolio PSIX Stock Details PSIX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$28.4M Buy
466,204
+23,108
+5% +$1.65M 0.02% 653
2025
Q4 		$25.3M Buy
443,096
+118,011
+36% +$8.42M 0.01% 668
2025
Q3 		$31.9M Buy
325,085
+251,883
+344% +$22.3M 0.02% 586
2025
Q2 		$4.73M Buy
+73,202
New +$2.71M ﹤0.01% 1188

Other funds holding PSIX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
SA
Situational Awareness San Francisco, California $13.7B AUM 334.5% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
BB
Busey Bank Urbana, Illinois $3.68B AUM 26.6% 1-Year Est. Return
SG Americas Securities
SG Americas Securities New York $92.9B AUM 36.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Arrowstreet Capital's PSIX Position: Q1 2026 in Review

Arrowstreet Capital increased its Power Solutions International (PSIX) stake by 5.2% in Q1 2026, buying an estimated $1.65M and bringing the position to 466,204 shares worth $28.4M. The position accounts for 0.02% of the portfolio, ranked #653.

Arrowstreet Capital first reported a position in PSIX in Q2 2025 and has held it in 4 quarters since. The position peaked at $31.9M in Q3 2025. 201 funds tracked by Wall St. Rank hold PSIX as of Q1 2026.

  • Arrowstreet Capital held 466,204 shares of Power Solutions International worth $28.4M as of Q1 2026.
  • Arrowstreet Capital bought 23,108 Power Solutions International shares in Q1 2026, an estimated $1.65M.
  • Power Solutions International made up 0.02% of Arrowstreet Capital's portfolio in Q1 2026, its #653 holding.
  • Arrowstreet Capital first reported a position in Power Solutions International in Q2 2025 and has held it in 4 quarters since.
  • Arrowstreet Capital's Power Solutions International position peaked at $31.9M in Q3 2025.
  • 201 funds tracked by Wall St. Rank held Power Solutions International as of Q1 2026.

Based on Arrowstreet Capital's 13F filing for Q1 2026, filed 14 May 2026.