James Montier

James Montier is a member of GMO's asset allocation team and previously served as global equity strategist at Dresdner Kleinwort and Societe Generale. He is known for applying behavioral finance research to practical investment strategy — particularly in identifying when market valuations have reached extremes driven by behavioral biases. His books "Behavioral Investing: A Practitioner's Guide to Applying Behavioral Finance" and "Value Investing: Tools and Techniques for Intelligent Investment" synthesize academic behavioral finance research for investment practitioners. At GMO, he contributes to the firm's well-known asset allocation and value approach, which often involves going against consensus views on market valuations. Montier's framework for assessing the seven signs of a market bubble — drawing on behavioral research about overconfidence, narratives, and valuation extremes — has been widely adopted by contrarian investors as an early warning system for identifying speculative excesses.