Jane Street
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Jane Street’s REX American Resources REX Stock Holding History

Jane Street’s Portfolio REX Stock Details REX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q1 		– Sell
-12,000
Closed -$284K – 9940
2023
Q4 		$284K Buy
+12,000
New +$240K ﹤0.01% 7675

Other funds holding REX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
SFM
Systematic Financial Management Teaneck, New Jersey $4.36B AUM 40.56% 1-Year Est. Return
MP
Mangrove Partners Greenwich, Connecticut $1.24B AUM 41.74% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Jane Street's REX Position: Q1 2026 in Review

Jane Street increased its REX American Resources (REX) stake by 233% in Q1 2026, buying an estimated $3.02M and bringing the position to 119,128 shares worth $5.43M. The position accounts for ﹤0.01% of the portfolio, ranked #3384.

Jane Street first reported a position in REX in Q2 2014 and has held it in 18 quarters since. The position peaked at $6.21M in Q3 2025. 234 funds tracked by Wall St. Rank hold REX as of Q1 2026.

  • Jane Street held 119,128 shares of REX American Resources worth $5.43M as of Q1 2026.
  • Jane Street bought 83,354 REX American Resources shares in Q1 2026, an estimated $3.02M.
  • REX American Resources made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #3384 holding.
  • Jane Street first reported a position in REX American Resources in Q2 2014 and has held it in 18 quarters since.
  • Jane Street's REX American Resources position peaked at $6.21M in Q3 2025.
  • 234 funds tracked by Wall St. Rank held REX American Resources as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.