Alex Gerko, the Russian-born but British-based trader worth up to £12 billion (€13.8 billion), wants another swing at the Workplace Relations Commission (WRC). Gerko’s firm, XTX Markets, took legal action against the investment management arm of Aviva over what it claimed was discrimination against Gerko over his Russian nationality when the company sought investment services in Ireland. The case first appeared at the Workplace Relations Commission and then the Circuit Court with no success for Gerko. His company appealed each time and in November, XTX won a case in the High Court that would allow the matter to be brought…