Zar Amrolia, who co-headed Deutsche Bank's fixed income unit and led its hulking FX trading division, will leave XTX Markets next year.

Amrolia is a key figure in City trading circles, and has co-headed XTX alongside Alex Gerko since the firm started in late 2015. XTX was a small upstart, then a big challenger for large investment banks in the foreign exchanging trading world.