Tristan de Gouvion Saint Cyr trading expert. Tristan de Gouvion Saint Cyr investment management expert. Tristan de Gouvion Saint Cyr speaks on How To Use Bar Patterns To Spot Trade Setups. While many of my co-workers jog, bicycle or play in bands for a hobby, I am use myself by looking through old price charts of stocks and commodities. I try to limit the time I spend on my hobby to about a half-day on the weekends, but often it encompasses the whole weekend, especially if it’s raining.