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  • 楔形与对称三角形的区别

楔形与对称三角形的区别

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市场运动中会形成各种各样的走势,如楔形与对称三角形的外形较接近,如何把它们区分清楚呢?   楔形的倾斜角度与对称三角形不同,这是它们之间最显著的区别。楔形也是由两条逐渐聚拢的趋势线构成,它通常持续的时间在1-3个月,与三角形同属中等规模的走势形态。我们知道,对称三角形是没有倾向性的,在上升趋势中出现的对称三角形和下降趋势中出现的对称三角形在外观与规模上并无二致。 与三角形突破相似,楔形突破一般发生在其横向长度2/3-3/4处,也有直到楔形尖端才发生突破的情形。楔形更倾向于在接近形态尖端部分才发生突破。从成交量上看,楔形在形成过程中具明显的缩量整理特征,但在楔形发生突破之时,成交量往往急速扩张。特别是在下降楔形的上边线被突破时,成交量的扩张显得更为重要。我们一般把在涨势中出现向下倾斜的楔形称为“下倾楔形”,它具有看涨意味;而在跌势中出现向上倾斜的楔形称作“上倾楔形”,具有看跌意味。但当我们在一个持续较长时间的上升趋势之中发现“上倾楔形”时,同样具有看跌意义,这常常是市场见顶的表现;同样,如果在市场底部出现“下倾楔形”,那么市场反转向上的时间不会太久。楔形的价格目标测量办法与旗形及三角旗形的测法是一致的,即市场在出现楔形前出现的急升或急跌幅度,作为突破之后的上涨或下跌幅度。
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