2007-08-01 15:55
下降楔型（Ｆａｌｌｉｎｇ Ｗｅｄｇｅ，也称倾斜三角形， 或者终结三角形，Ｅｎｄｉｎｇ Ｄｉａｇｏｎａｌ。 在结构上，通常形成调整波段中浪Ｃ，或者下跌波段中的第五浪），以及上升楔型，如同，头肩顶/底，圆弧顶/底一样，都是典型的翻转形态。
这里提供一个实战范例 —— 美元/日元。
在前期自108。90附近启动的下跌过程中，产生了一个几乎完美的下降楔型。
其他有关操作内容，参阅５－５－０５ ｓｈａｒｋｅａｔｅｒ 美元／日元短线，和今天一贴中日元的短线操作建议。
这形态，经常在各个时间框架内出现，频率非常高。经典的，规范的例子不是很多，常常和上述提及的，类似的三角形形态混淆。
注意几个要点：
早期的上行趋势，是必需条件，
先期的下降运行阶段，（和后期形态发展，理想的运行时间比例，1：1-2）
由价格反应形成的低点和高点，组成的支撑线和压制线，收拢。
英文原文：
Prior Trend: To qualify as a reversal pattern, there must be a prior trend to reverse. Ideally, the falling wedge will form after an extended downtrend and mark the final low.
Upper Resistance Line: It takes at least two reaction highs to form the upper resistance line, ideally three. Each reaction high should be lower than the previous highs.
Lower Support Line: At least two reaction lows are required to form the lower support line. Each reaction low should be lower than the previous lows.
Resistance Break: Bullish confirmation of the pattern does not come until the resistance line is broken in convincing fashion. It is sometimes prudent to wait for a break above the previous reaction high for further confirmation. Once resistance is broken, there can sometimes be a correction to test the newfound support level.
Volume: While volume is not particularly important on rising wedges, it is an essential ingredient to confirm a falling wedge breakout. Without an expansion of volume, the breakout will lack conviction and be vulnerable to failure.
