John Quayle
Head of client algo execution
- John is Head of Client Algo Execution at NatWest Markets, where he leads the development and delivery of advanced FX execution solutions for institutional clients and internal stakeholders. Based in London, he specialises in algorithmic execution, automation, and transaction cost optimisation, helping clients navigate increasingly complex and electronic FX markets. With nearly three decades of experience in foreign exchange, John has built a distinguished career spanning quantitative research, trading, electronic pricing, and algorithmic execution. He began his career at NatWest as an FX Options Quant before going on to trade FX options and precious metals across NatWest/RBS. He later played a pivotal role in developing one of the market's earliest scalable electronic FX options pricing engines, contributing to the evolution of eFX trading technology. Today, John focuses on the design and enhancement of FX spot execution algorithms and gamma hedging solutions, combining deep market expertise with cutting-edge technology to drive execution quality, innovation and automation.