Twin Tree Management
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Twin Tree Management’s ATI ATI Stock Holding History

Twin Tree Management’s Portfolio ATI Stock Details ATI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$394K Sell
2,000
-5,300
-73% -$898K 0.01% 1080
2026
Q1 		$1.06M Sell
7,300
-105,900
-94% -$14.7M 0.02% 705
2025
Q4 		$13M Sell
113,200
-152,300
-57% -$14.8M 0.11% 223
2025
Q3 		$21.6M Buy
265,500
+50,200
+23% +$4.07M 0.09% 264
2025
Q2 		$18.6M Buy
+215,300
New +$14.7M 0.03% 510

Other funds holding ATI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Twin Tree Management's ATI Position: Q2 2026 in Review

Twin Tree Management reduced its ATI (ATI) stake by 46% in Q2 2026, selling an estimated $1.17M and leaving 8,097 shares worth $1.6M. The position accounts for 0.03% of the portfolio, ranked #653.

Twin Tree Management first reported a position in ATI in Q2 2023 and has held it in 6 quarters since. The position peaked at $2.18M in Q1 2026. 793 funds tracked by Wall St. Rank hold ATI as of Q2 2026.

  • Twin Tree Management held 8,097 shares of ATI worth $1.6M as of Q2 2026.
  • Twin Tree Management sold 6,883 ATI shares in Q2 2026, an estimated $1.17M.
  • ATI made up 0.03% of Twin Tree Management's portfolio in Q2 2026, its #653 holding.
  • Twin Tree Management first reported a position in ATI in Q2 2023 and has held it in 6 quarters since.
  • Twin Tree Management's ATI position peaked at $2.18M in Q1 2026.
  • 793 funds tracked by Wall St. Rank held ATI as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.