THETA Trading Systems ("THETA") is revolutionising trading in capital markets. Based in London, THETA provides the next-generation trading platform or EMS ( Execution Management System) for institutional investment managers through its innovative, cloud-native SaaS platform, Apollo. Built by industry experts, Apollo is a marketplace and data aggregator that transforms trading for the digital age, empowering traders with a modern, seamless web-native digital user experience and a flexible, responsive, and intuitive way to trade smarter, from anywhere.
With a specialist focus on fixed income markets, in response to demand, THETA draws upon the successes and lessons learned from the electrification and efficiency of capital markets trading in foreign exchange, cash equities, and listed derivatives. THETA accelerates trading digital transformation, leveraging unparalleled capital markets expertise to turbocharge liquidity, streamline standardisation, and deploy cutting-edge technology infrastructure – delivering a game-changing and optimised trading experience for clients institutional invesment managers seeking a competitive advantage with a digital user experience, trading efficiency, agility, and future growth.
Leadership
CEO

Paul Wallace
Head of Product
25 years experience in Fixed Income and Foreign Exchange Trading. Prior to joining THETA, Paul was Head of Fixed Income Trading at Aviva Investors.
Before that, Paul held senior trading roles for Hermes, BGC Partners and Barclays Global Investors amongst others covering Fixed Income and FX cash and derivatives traded products.

George O'krepkie
Strategic Advisor
