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在《证券导刊》2004年第6期里，华尔街资深人士刘虹俊先生介绍了美国22种主流投资策略中的一种——大卫·德雷曼的逆向投资策略，这种投资策略在美国股市的5年半(1998至2003年6月份)投资收益率为108.50％，月波动均方差为5.2％，而同期标准普尔500指数回报率仅为0.40％，月波动
In Securities Times, Issue 6, 2004, Mr. Liu Hongjun, a Wall Street veteran, introduced the reverse investment strategy of David Dreman, one of the 22 mainstream investment strategies in the United States. The investment strategy is based on the U.S. stock market The investment return rate was 108.50% for the five and a half years (from 1998 to June 2003), with a monthly variance of 5.2%, while the S & P 500 index returned 0.40% over the same period. Monthly fluctuations