About the authors GARY KLOPFENSTEIN is President of his own trading firm, GK Capital Management, a foreign exchange trading company managing over $200 million and ranked among the top-rated portfolio management groups in the world. JON STEIN is a Chicago-based financial writer and attorney specializing in international finance and securities. A former editor at Futures magazine, his writing is largely focused on futures and interbank topics. About the Series Editor PERRY J. KAUFMAN has over 20 years experience in systems design for trading strategies, hedging, and arbitrage in derivative produ...