Brian Overby is a Senior Options Analyst at Ally Invest, a leading digital financial services company based in Detroit. Prior to this, he was a Senior Staff Instructor for the Chicago Board Options Exchange. He also managed the training department for one of the world's largest market makers, Knight Trading Group. Overby is a widely coveted commentator for his option trading knowledge and market insights. Since starting his financial career in 1992, Overby has given numerous trading seminars worldwide and published hundreds of articles on investing aimed to improve the understanding of retail investors.