Chapter 1  布林带指标(Bollinger Bands)

布林带指标,简称BOLL指标,是通过计算价格的“标准差”,再求价格的“信赖区间”,从而确定汇价波动范围和未来走势的一种技术指标。原始图形是由三条轨道线组成的带状通道,包含带状的中心线,简称中轨;上阻力线,简称上轨;下支撑线,简称下轨。

中轨等同移动平均线的平均成本观念。一般标准参数都设20(即20MA)

上轨的计算,通常是中轨+2个标准差,即阻力线

下轨的计算,通常是中轨-2个标准差,即支撑线

布林带的支撑阻力作用

当货币价格跌到下轨道时(支撑线),在箱型震荡区间中,表示短线超跌,再跌的几率不大,可以进场做多。

当货币价格上涨到上轨道时(阻力线),在箱型震荡区间中,表示短线超涨,再涨的几率不高,可以进场做空。

布林带指标(Bollinger Bands)-Pic no.1

图8.1.1

布林带可以指示趋势

一般而言,当

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