XTX Topco’s 707 Cayman Holdings JEM Stock Holding History

XTX Topco’s Portfolio JEM Stock Details JEM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$22.1K	Buy	951 +727	+325%	+$23.6K	﹤0.01%	3523
2025 Q4	$9.5K	Buy	+224	New	+$15.2K	﹤0.01%	3188

Other funds holding JEM

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

XTX Topco's JEM Position: Q1 2026 in Review

XTX Topco increased its 707 Cayman Holdings (JEM) stake by 325% in Q1 2026, buying an estimated $23.6K and bringing the position to 951 shares worth $22.1K. The position accounts for ﹤0.01% of the portfolio, ranked #3523.

XTX Topco first reported a position in JEM in Q4 2025 and has held it in 2 quarters since. 5 funds tracked by Wall St. Rank hold JEM as of Q1 2026.

XTX Topco held 951 shares of 707 Cayman Holdings worth $22.1K as of Q1 2026.
XTX Topco bought 727 707 Cayman Holdings shares in Q1 2026, an estimated $23.6K.
707 Cayman Holdings made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #3523 holding.
XTX Topco first reported a position in 707 Cayman Holdings in Q4 2025 and has held it in 2 quarters since.
5 funds tracked by Wall St. Rank held 707 Cayman Holdings as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.