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Moving Averages 移动平均线: Page 4 of 4

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Simple vs. Exponential Moving Averages

By now, you’re probably asking yourself, which is better? The simple or the exponential moving average?

First, let’s start with the exponential moving average. When you want a moving average that will respond to the price action rather quickly, then a short period EMA is the best way to go.

These can help you catch trends very early (more on this later), which will result in higher profit. In fact, the earlier you catch a trend, the longer you can ride it and rake in those profits (boo yeah!).

The downside to using the exponential moving average is that you might get faked out during consolidation periods (oh no!).

Because the moving average responds so quickly to the price, you might think a trend is forming when it could just be a price spike. This would be a case of the indicator being too fast for your own good.

With a simple moving average, the opposite is true. When you want a moving average that is smoother and slower to respond to price action, then a longer period SMA is the best way to go.

This would work well when looking at longer time frames, as it could give you an idea of the overall trend.

Although it is slow to respond to the price action, it could possibly save you from many fake outs. The downside is that it might delay you too long, and you might miss out on a good entry price or the trade altogether.

An easy analogy to remember the difference between the two is to think of a hare and a toirtoise.

Simple vs. Exponential Moving Average

The tortoise is slow, like the SMA, so you might miss out on getting in on the trend early. However, it has a hard shell to protect itself, and similarly, using SMAs would help you avoid getting caught up in fakeouts.

On the other hand, the hare is quick, like the EMA. It helps you catch the beginning of the trend but you run the risk of getting sidetracked by fakeouts (or naps if you’re a sleepy trader).

Below is a table to help you remember the pros and cons of each.

  SMA EMA
Pros Displays a smooth chart which eliminates most fakeouts. Quick Moving and is good at showing recent price swings.
Cons Slow moving, which may cause a a lag in buying and selling signals More prone to cause fakeouts and give errant signals.

So which one is better?

It’s really up to you to decide.

Many traders plot several different moving averages to give them both sides of the story. They might use a longer period simple moving average to find out what the overall trend is, and then use a shorter period exponential moving average to find a good time to enter a trade.

There are a number of trading strategies that are built around the use of moving averages. In the following lessons, we will teach you:

  1. How to use moving averages to determine the trend
  2. How to incorporate the crossover of moving averages into your trading system
  3. How moving averages can be used as dynamic support and resistance

Time for recess! Go find a chart and start playing with some moving averages! Try out different types and try experimenting with different periods. In time, you will find out which moving averages work best for you.

简单平均线VS指数平均线

        现在,你可能会问自己,哪个更好? 是简单或指数移动平均线?

       首先,让我们先从指数移动平均线(EMA)开始。 当你想要相当快速地反映移动平均价位的时候,那么一个短周期的指数平均线,是最好的选择。

       它可以帮助你非常快的逮到趋势(稍后详解),而这通常意味着致更高的获利。事实上,你越早的抓住一个趋势,你就拥有越长的时间可以骑着它,四处去敛集你的财富(哇~)。

       但使用指数移动平均线的缺点在于,它可能会在市场盘整的时期内,时常欺骗你(哦,不!)。

       由于这类移动平均线如此迅速地反应价位,所以你可能因为它的反应,而认为趋势已经形成的时候,而这可能仅仅只是一个价格突变时的上涨。这是针对指标太快时的,其中一种情况。

       但对于简单移动平均线,它则具有过滤这种价格短期突变的优势。 当你想要一条更加平滑,和对价格的反应稍慢的移动平均线时,那么一个较长时间周期的SMA是最好的选择。

       虽然简单移动平均线对价格波动的反应比较缓慢,但它却能从很多的假讯息中,把你给拯救出来。 缺点是,它可能会滞后太长的时间,而你可能错过一个较好的下单价位或交易机会。

       一个简单的比喻,两者之间的区别就像一只兔子和一只乌龟。

 

       乌龟是缓慢的,如SMA,所以你可能会错过早期的趋势。 然而,它有一个坚硬的外壳来保护自己,同样,使用SMA会帮助你避免陷入假讯号中。

       而另一边,兔子的反应快,像EMA。 它可以帮助你赶上趋势,但你需要冒着被假讯号引开注意力的风险(或是冒着它偷睡的风险,如果你是一个瞌睡的交易者的话)。

       下面是一个表,是帮助你分别记住它们的优缺点的。

                    SMA                                        EMA
   优点     消除多数的假讯号,给你一个平滑的图表。            快速移动,可以很好的显示出近期的价格趋势。

   缺点     滞后,这可能导致买卖信号落后。                          容易被假讯号讯息,而给出错误的交易信号。

       那么,哪一个更好呢?

       这答案相当大程度取决于你的决定。

       许多交易者通过叠加几种不同类型和周期的移动平均线,来分析两中均线所表达的情况。 他们可能会用一条较长周期的简单移动平均线,来找出整体的趋势。然后再使用一条较短周期的指数移动平均线,来找到一个下单进场的好时机。

       有许多的交易策略都是围绕着移动平均线的基础建立的。 在接下来的课程中,我们将教你:
             1. 如何使用移动平均线来确定趋势
               2. 如何把交叉的移动平均线,纳入你的交易系统
                 3. 怎样利用移动平均线,作为动态的支撑或阻力位

       又到了休息时间! 去找一个图表,并开始与一些移动平均线玩玩! 尝试不同类型、不同周期期的移动平均线, 随着一段时间的实验,你会发现哪些平均线最适合你。