相对动量指标(RMI)是罗吉·阿尔特曼发明的。发表于1993年2月的《股票与商品技术分析》杂志。该指标的主要目标是改进经典的RSI指标提供的数据来判断价格是否达到了超买/超卖区域。
RMI = 100 * N / (H + B), where
N – the number of days;
H – the sum of fluctuations of positive closing prices for the period between today and N days ago;
B – the sum of fluctuations of negative closing prices for the period between today and N days ago.
作为技术分析的经典震荡指标之一,RMI指标能使用户探明交易现象中的下列可能性:
1.价格高点与低点
该指标在下降趋势中达到并越过70%的水平,就是一个价格继续下跌的显著信号。在这种情况下,RMI指标指向超卖区域,当它达到该区域,价格下降趋势或将开始。
当该指标上升达到并越过30%的水平,是一个肯定的信号:价格已经完成了调整并且能够继续上涨。在这种情况下应该买入。
2.价格图样
RMI指标可能会先于价格图形成这些图样,如三角,旗,还有头和肩等。而交易者可以在价格图上的图样尚未形成时就察觉这些走势。
3.背离/一致信号
作为震荡指标,该指标能使用户在与价格走势比较时在指标线上观察到背离/一致信号;而这样的信号是和做决定息息相关的,因为RMI是这类信号中非常显著的指标。
RMIperiod = 14
MOMperiod = 5
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