Optiver Holding
PESI icon

Optiver Holding’s Perma-Fix Environmental Services PESI Stock Holding History

Optiver Holding’s Portfolio PESI Stock Details PESI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.82K Sell
170
-128
-43% -$1.76K ﹤0.01% 1889
2025
Q4 		$3.75K Hold
298
– – ﹤0.01% 1581
2025
Q3 		$3.01K Buy
+298
New +$3.29K ﹤0.01% 2179

Other funds holding PESI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
MCO
MAK Capital One New York $679M AUM 29.02% 1-Year Est. Return
PGCM
Prescott Group Capital Management Tulsa, Oklahoma $1B AUM 51.95% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
HA
Heartland Advisors Milwaukee, Wisconsin $1.96B AUM 28.26% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $16B AUM 4.15% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
PCM
Potomac Capital Management New York $115M AUM
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return

Optiver Holding's PESI Position: Q1 2026 in Review

Optiver Holding reduced its Perma-Fix Environmental Services (PESI) stake by 43% in Q1 2026, selling an estimated $1.76K and leaving 170 shares worth $1.82K. The position accounts for ﹤0.01% of the portfolio, ranked #1889.

Optiver Holding first reported a position in PESI in Q3 2025 and has held it in 3 quarters since. The position peaked at $3.75K in Q4 2025. 85 funds tracked by Wall St. Rank hold PESI as of Q1 2026.

  • Optiver Holding held 170 shares of Perma-Fix Environmental Services worth $1.82K as of Q1 2026.
  • Optiver Holding sold 128 Perma-Fix Environmental Services shares in Q1 2026, an estimated $1.76K.
  • Perma-Fix Environmental Services made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #1889 holding.
  • Optiver Holding first reported a position in Perma-Fix Environmental Services in Q3 2025 and has held it in 3 quarters since.
  • Optiver Holding's Perma-Fix Environmental Services position peaked at $3.75K in Q4 2025.
  • 85 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.