Marex has launched a new private markets desk, with the aim of enhancing the firm’s FX and interest rate offerings.

Jack Carnell, Lloyd Beeston
The new offering is set to boost Marex’s capabilities for private capital managers, providing high touch, institutional grade access to structured currency risk management and interest rate solutions.
The desk is set to be supported by Marex’s current purpose-build technology, investment grade credit rating and global market connectivity, and also sees the firm bringing in two new hires to lead the desk.
Specifically, Lloyd Beeston joins as head of dealing for private markets, while Jack Carnell is set to take on the role of head of portfolio solutions for private markets.
Speaking to The TRADE, Carnell said: “The launch of this desk is a significant step in the continued expansion of Marex’s capital markets business. Private capital is becoming increasingly international, and with that comes greater complexity around foreign exchange and interest rate risk throughout the investment lifecycle. We are building this capability to help clients manage those exposures more effectively, execute with greater efficiency and protect value at both the fund and portfolio level.
“Our appointments are central to that ambition. We bring the experience, relationships and technical expertise needed to establish a high-touch platform tailored to the needs of private capital managers. More broadly, this underlines Marex’s commitment to investing in specialist capabilities that help clients operate with greater confidence in an increasingly complex cross-border environment.”
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Both Beeston and Carnell bring more than a decade of institutional FX experience across private markets to their new roles, joining Marex after stints at Argentex Group.
During their times at Argentex Group, Carnell served as a senior vice president for more than seven years, while Beeston worked across several roles during his nine-year tenure at the firm, most recently as a senior trader.
Argentex Group went into administration in July 2025, after trading was halted at the firm earlier that month.