Mark S. Rzepczynski, PhD, is CEO and Chief Investment Officer at AMPHI Research and Trading, a consulting firm to institutional investors and hedge funds on derivatives markets across all asset classes. His 40 years of experience includes: CEO Funds Group of FourWinds Capital Management; president, CIO of John W. Henry Inc; head of taxable fixed income research at Fidelity Management and Research; fixed income research director and portfolio manager for a Prudential Insurance subsidiary; various fixed income positions at First Chicago and Merrill Lynch; economist for the Chicago Mercantile Exchange; and assistant professor of finance at the University of Houston. He is an associate editor of the Journal of Alternative Investments.