Crypto arbitrage hedge fund Argentium appoints Head of Trading Submitted 16/07/2021 - 2:47pm Sophia Chelli Herman has joined Argentium as a Principal and Head of Trading. Herman has more than 25 years’ experience in financial markets. She started her career at BNP in Paris, working in the research and development team on options modeling and trading management software for the Fixed Income desk. She then moved to London where she worked for NatWest, Bankers Trust and then JPMorgan on the Fixed Income swaps desk. In 2000, she transferred to JPMorgan Tokyo where she was responsible for the exotic equity derivatives trading team.