MARK W. HELWEG pioneered research in the field of trading system design. In his early days, Mr. Helweg worked and traded on the floor of the Chicago Board of Trade. He then applied his background in mechanical engineering controls and his expertise in probability and statistics to successfully develop stable trading systems. He partnered with an international CTA with over $40 million under management to research new trading system technology. Later, Mr. Helweg joined Chickasaw Capital, a firm that was named one of four "Hot New CTAs" by Futures Magazine for 1998. He has a degree in mechanical engineering with a minor in mathematics. Mr. Helweg is currently a trading principal with Landmark Asset Management Corp., a CTA that specializes in systematic trading. DAVID C. STENDAHL is an authority in the field of portfolio construction and design. He is a trading principal with Landmark Asset Management Corp. Mr. Stendahl has lectured at numerous national and international conferences and has written many articles on evaluation and money management techniques. He is also the author of Profit Strategies: Unlocking Trading Performance with Money Management. His trading expertise has been featured in a number of educational videos, including The Systematic Trader: Maximizing Trading Systems and Money Management. Mr. Stendahl was also instrumental in creating various performance analysis software packages, including Performance Summary Plus (now incorporated into TradeStation 2000i by Omega Research), Portfolio Evaluator, Money Manager, and 3D SmartView.