Group One Trading
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Group One Trading’s Perma-Fix Environmental Services PESI Stock Holding History

Group One Trading’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
Q2 		$8.57K Sell
600
-70,000
-99% -$780K ﹤0.01% 6489
2026
Q1 		$755K Buy
70,600
+63,500
+894% +$873K ﹤0.01% 2959
2025
Q4 		$89.4K Buy
7,100
+6,000
+545% +$76.5K ﹤0.01% 5091
2025
Q3 		$11.1K Sell
1,100
-600
-35% -$6.63K ﹤0.01% 7106
2025
Q2 		$17.9K Sell
1,700
-8,200
-83% -$75.4K ﹤0.01% 6331
2025
Q1 		$72K Sell
9,900
-2,300
-19% -$20.7K ﹤0.01% 4867
2024
Q4 		$135K Buy
+12,200
New +$160K ﹤0.01% 4263
2024
Q2 		– Sell
-15,900
Closed -$189K – 7307
2024
Q1 		$189K Hold
15,900
– – ﹤0.01% 3611
2023
Q4 		$125K Buy
15,900
+12,900
+430% +$109K ﹤0.01% 4266
2023
Q3 		$31.4K Sell
3,000
-10,200
-77% -$112K ﹤0.01% 5508
2023
Q2 		$145K Buy
+13,200
New +$138K ﹤0.01% 4259

Other funds holding PESI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
MCO
MAK Capital One New York $714M AUM 68.07% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PGCM
Prescott Group Capital Management Tulsa, Oklahoma $1.16B AUM 53.61% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $12.5B AUM 7.49% 1-Year Est. Return
KCM
Kennedy Capital Management St Louis, Missouri $5.65B AUM 61.31% 1-Year Est. Return
PCM
Potomac Capital Management New York $147M AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
HA
Heartland Advisors Milwaukee, Wisconsin $2.25B AUM 44.61% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Group One Trading's PESI Position: Q2 2026 in Review

Group One Trading reduced its Perma-Fix Environmental Services (PESI) stake by 50% in Q2 2026, selling an estimated $1.39M and leaving 122,611 shares worth $1.75M. The position accounts for ﹤0.01% of the portfolio, ranked #2351.

Group One Trading first reported a position in PESI in Q1 2023 and has held it in 11 quarters since. The position peaked at $2.65M in Q1 2026. 89 funds tracked by Wall St. Rank hold PESI as of Q2 2026.

  • Group One Trading held 122,611 shares of Perma-Fix Environmental Services worth $1.75M as of Q2 2026.
  • Group One Trading sold 125,063 Perma-Fix Environmental Services shares in Q2 2026, an estimated $1.39M.
  • Perma-Fix Environmental Services made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #2351 holding.
  • Group One Trading first reported a position in Perma-Fix Environmental Services in Q1 2023 and has held it in 11 quarters since.
  • Group One Trading's Perma-Fix Environmental Services position peaked at $2.65M in Q1 2026.
  • 89 funds tracked by Wall St. Rank held Perma-Fix Environmental Services as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.