Category:H2：修订间差异

20230125, 37 went above 36 forming a A2, traders can buy above 38 the good BLB or 38C.

Al Brooks call it "H2": Two legged pullback in a bull move, but it can also be a 2nd reversal up from a selloff, so variation of a double bottom. There is one thing that is actually very important to mention, the "A2" term by ninetrans below is a subset of Al Brooks' H2, because Al Brooks look at double bottom a H2 as well, however the fact that they both are called H2 can lead to some confusions to beginner traders, making them think a H2 in a double bottom from a trading range has same probability of success as a H2 in a trend, but in reality, the H2 in a strong trend almost always has higher probability than a H2 in a DB^[1].

Ninetrans call it "A2": A two legged pullback to the EMA in a trend^[2]. Most trending days have two or more continuations. Most continuations are A2, which is a 2 legged pullback to the EMA. The simplest way to look at an A2 is the second attempt to end the pullback. As long as any of the bars that make up the pullback are near the EMA giving an entry slightly above or below it, you can consider it an A2, but A2 does work better when the trend is tight and the pattern sets up after 1CB, example: bar 36 on 20230125 on the right.

Another way to define this is two failed attempts to reverse the trend, i.e. failed L2. Note that if your A2 entry is very far from the EMA, you may get a 3rd push which turns into a W pullback to the EMA. These should be taken just like they were an A2. In a strong trend, you may have H1s and L1s that work, but new traders should just stick to A2^[3].

It is relative easy to identify a A2 set up when the market is clearly trending from the open and the price stays well above EMA, i.e. a BLTFO, but when sometime market had a strong reversal attempt from far below EMA (usually after BGD) and then form a A2 around EMA (slightly below, or above, or just oscillating around EMA), it is not a very easy decision because that is where strong bears starts to sell and hope to resume the bear trend (after the BGD).

机翻：

Al Brooks称其为“H2”：在牛市中的两腿回撤，但它也可以是从抛售中的第二次反转，因此是双底的变化形式。实际上有一件非常重要的事情需要提到，ninetrans下的“A2”术语是Al Brooks的H2的子集，因为Al Brooks也将双底视为H2，然而它们都被称为H2，可能会让初学者交易员产生一些混淆，让他们认为交易范围内的双底中的H2与趋势中的H2具有相同的成功概率，但实际上，在强劲趋势中的H2几乎总是比双底中的H2具有更高的概率[1]。

20230125，37上涨到36以上形成了一个A2，交易员可以在38或38C以上买入好的BLB。Ninetrans称其为“A2”：趋势中的EMA的两腿回撤[2]。大多数趋势日有两个或更多的延续。大多数延续是A2，即回撤到EMA的两腿。看待A2的最简单方法是第二次结束回撤的尝试。只要组成回撤的任何一根K线接近EMA，稍微高于或低于它的入场，您就可以将其视为A2，但是，当趋势紧密并且模式在1CB后设置时，A2的效果会更好，

例如：右侧的20230125的36K线。 另一种定义方法是尝试两次逆转趋势失败，即L2失败。请注意，如果您的A2入场离EMA非常远，您可能会得到第3次推动，这将变成一个W回撤到EMA。这些应该像A2一样被看待。在强劲的趋势中，您可能会有H1和L1，但新手交易员应该坚持A2[3]。 当市场从开盘开始明显趋势并且价格保持在EMA上方时，即BLTFO时，相对容易识别A2设置，但是当市场有时从远离EMA的位置（通常在BGD之后）尝试强烈逆转，然后在EMA周围形成A2（略低于，或高于，或仅在EMA周围振荡），这不是一个很容易的决定，因为那是强烈的空头开始卖出并希望恢复空头趋势（在BGD之后）。