David Lohmann

David Lohmann is a SOFR Options Trader at Simplex Trading LLC in Chicago, Illinois, where he focuses on trading and market making within the U.S. interest rate derivatives market, specifically Secured Overnight Financing Rate (SOFR) options. In this role, he manages sophisticated options strategies and provides liquidity to institutional participants in the rapidly evolving risk-free rates market.

David's career spans over a decade in short-term interest rate derivatives, having previously served as a Eurodollar Options Trader at ARB Trading Group and at Tenzan Capital LLC. His expertise is concentrated in interest rate options and futures, where he has built a reputation for analytical rigor and operational excellence.

He holds a Bachelor of Science in Computer Science from the University of Illinois at Urbana-Champaign, equipping him with a strong quantitative and technical foundation to develop trading models and manage complex risk exposures. David is recognized for his deep specialization in U.S. interest rate derivatives, particularly in the transition from Eurodollar to SOFR-based products.