Euan Sinclair

Euan Sinclair is a professional options trader and author who has written several books on systematic options and volatility trading, including "Volatility Trading" (2008, updated 2013) and "Positional Option Trading" (2020). His work bridges academic options pricing theory and practical trading implementation, providing frameworks for how to think about implied versus realized volatility, volatility risk premia, and how to systematically trade options with positive expected value. He has managed options portfolios at various firms including Talton Capital Management. His books have become important resources for professional options traders seeking a more rigorous, evidence-based approach to volatility trading. Sinclair's contribution to options trading literature is distinguished by its focus on how systematic, rules-based approaches to volatility harvesting can generate consistent returns — providing practical guidance that goes substantially beyond the theoretical frameworks found in academic finance textbooks.