移动平均通道
包络线是一种技术指标，通常由价格水平范围的上下两条移动平均线形成。上下边界与价格水平之间的距离有市场波动性决定：当时的波动性越高，距离越大。因此，包络线用于刻画价格大多数时间在其范围内波动的通道。
当价格达到上边界，发出卖出的信号，当达到下边界，发出买入的信号。
包络线根据下列规则判断价格的下一步运动：任何波动之后价格总要回到主要趋势。很多交易者相信该指标是著名的布林带的一个变形。然而这两种指标本质上是不同的。价格偏离其通道越远，交易者获利越多，并且越接近价格返回之前水平的时刻。
计算
上边界 = SMA(CLOSE, N)*[1+K/1000]
下边界 = SMA(CLOSE, N)*[1-K/1000]
其中：
SMA - 简单移动平均；
N - 平均周期；
K/1000 - 偏离平均值(以基点为单位)。
The InstaForex Analyst Team
GK InstaFintech © 2007-2024
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