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Harmonic Price Patterns 谐波价格形态: Page 2 of 5

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The ABCD and the Three-Drive

The ABCD

Let’s start this lesson with the simplest harmonic pattern.  So what could be more basic than the good old ABC’s? We’ll just pop in another letter at the end (because we’re cool like that), and we’ve got the ABCD chart pattern!  That was easy!

To spot this chart pattern, all you need are ultra-sharp hawk eyes and the handy-dandy Fibonacci tool.

For both the bullish and bearish versions of the ABCD chart pattern, the lines AB and CD are known as the legs while BC is called the correction or retracement. If you use the Fibonacci retracement tool on leg AB, the retracement BC should reach until the 0.618 level. Next, the line CD should be the 1.272 Fibonacci extension of BC.

Simple, right? All you have to do is wait for the entire pattern to complete (reach point D) before taking any short or long positions.

Bearish ABCDBullish ABCD

Oh, but if you want to be extra strict about it, here are a couple more rules for a valid ABCD pattern:

  • The length of line AB should be equal to the length of line CD.
  • The time it takes for the price to go from A to B should be equal to the time it takes for the price to move from C to D.

Three-Drive

The three-drive pattern is a lot like the ABCD pattern except that it has three legs (now known as drives) and two corrections or retracements. Easy as pie! In fact, this three-drive pattern is the ancestor of the Elliott Wave pattern.

As usual, you’ll need your hawk eyes, the Fibonacci tool, and a smidge of patience on this one.

Bearish Three-DriveBullish Three-Drive

As you can see from the charts above, point A should be the 61.8% retracement of drive 1. Similarly, point B should be the 0.618 retracement of drive 2. Then, drive 2 should be the 1.272 extension of correction A and drive 3 should be the 1.272 extension of correction B.

By the time the whole three-drive pattern is complete, that’s when you can pull the trigger on your long or short trade. Typically, when the price reaches point B, you can already set your short or long orders at the 1.272 extension so that you won’t miss out!

But first, it’d be better to check if these rules also hold true:

  • The time it takes the price to complete drive 2 should be equal to the time it takes to complete drive 3.
  • Also, the time to complete retracements A and B should be equal.

Here’s a forum thread discussing the ABCD pattern and a trade setup with the three-drive pattern.

ABCD和三重推进

ABCD形态

       让我们从最简单的谐波形态开始本课的学习,而最简单的莫过于ABCD形态了。

       为准确的画出该形态,你所需要的是一双慧眼以及斐波那契工具。

       对看涨ABCD形态和看跌ABCD形态来说,AB线和CD线称作价格腿 ,而BC线称作回调或回撤线。如果你使用斐波那契回撤位工具,BC的回撤目标应该达到AB之间距离的0.618,而CD线长度应该达到BC斐波那契延伸位的1.272。

       很简单,是吗?你所需要做的只是等到整个形态的完成(即汇价达到D点),随后,便可以采取相应的买入或卖出策略。

       对于有效的ABCD形态来说,有以下规则需要我们掌握:

            ● AB线的长度应该等于CD线的长度

            ● 汇价由A运动到B的时间应该等于汇价从C运动到D的时间。

三重推进形态

       三重推进形态和ABCD形态颇为相似,所不同的地方在于该形态有三条价格腿(现在我们叫做三重推进),并有两条回调或回撤线。很简单,是吧!事实上,三重推进形态可是艾略特波浪形态的祖先。

       和平常一样,你需要具备一双像鹰眼一样敏锐的眼睛,并借助斐波那契工具,以及一点点的耐性。

       如图所示,点A应该是第一次推进的61.8%回撤位。与此类似的,点B应该是第二次推进的61.8%斐波那契回撤位,而第二次推进目标应该是A回撤线的1.272延伸位,第三次推进目标也应该是B回撤线的1.272延伸位。

       当三重推进形态完全形成时,你就可以采取相应的做多或做空操作。通常情况来说,当价格触及点B,你就可以将空单或多单设在B回撤线的1.272延伸位,那么,你就不会错过即将出现的价格行情。

       但是,我们首先最好还是核实一下,这些规则是否也成立:

            ● 汇价完成第二次推进的时间应该等于完成第三次推进的时间

            ● 同时,汇价完成A回撤线走势的时间和完成B回撤线走势的时间应该相等。