什麼是EMA和MA？

整个过程整理如下：

EMA index smooth moving average

An exponential moving average (EMA) is a type of moving average (MA) that places a greater weight and 什麼是EMA和MA？ significance on the most recent data points. The exponential moving average is also referred to as the exponentially weighted moving average. An exponentially weighted moving average reacts more significantly to recent price changes than a simple moving average (什麼是EMA和MA？ SMA), which applies an equal weight to all observations in the period. EMA5, EMA10, 什麼是EMA和MA？ EMA20, EMA60, EMA120, EMA250 correspond to the exponential smoothing moving averages of 5, 10, 20, 60, 120, and 250 respectively.

2. Calculation formula

Find the N-day exponential moving average of X, which is generally expressed as: EMA (X, N) in the stock formula. Where X is the closing price of the day and N is the number of days.

Index average value of the day = Smoothing coefficient * (Index value of the day - Yesterday’s index average) + Yesterday’s index average; Smoothing coefficient = 2 / (period unit + 1); Derived from the above formula, we get: EMA (N) = 2 * X / (N+1) + (N-1) * EMA (N-1) / (N+1).

3. Application

In actual trading activity, the EMA indicator mainly has the following six basic usages.

● The 5-day EMA and10-day EMA lines is the short-term cycle, the 20-day EMA line is the mid-term cycle, and the 60-day EMA line is the long-term judgment cycle. Among them, the 60-day EMA line is the critical turning point for bull and bear.

● 5-day EMA crossing above the 10-day EMA line is a short-term buy signal; breaking the below the 10-day 什麼是EMA和MA？ EMA line is a short-term selling signal.

● 10-day EMA crossing above the 20-day EMA line is a mid-term buy signal; breaking below the 20-day EMA line is a mid-term sell signal.

● 20-day EMA line crossing above the 60-day EMA line is a long-term buy signal; breaking below the 60-day EMA line is a long-term selling signal.

● If the 5-day EMA line crosses or breaks the 20-day EMA line, it will be viewed as a mid to short-term trend; the 10-day EMA line crosses or breaks the 10-day EMA line, it will be viewed as a mid to long-term trend.

● Use EMA to buy the dip and MA to recognize the peak. For example, use the 20-day EMA line to determine the bottom and the 20-day MA line to determine the top.

什么是 MACD 以及交易者如何使用它？

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統一期貨期添大勝網

本文介紹的移動平均線其實全名又稱為簡單移動平均線(Simple Moving Averagee, SMA)，優點就是簡單容易使用，但有一個缺點就是反應遲鈍，例如當均線發生黃金交叉時，價格其實已經早就已大漲一段，根據這個訊號進場的買點自然也比較差，因此，後來有衍生出其他變形，更敏感、更能貼近當下市況的均線：指數移動平均線(Exponential Moving Average , EMA)及加權移動平均線(Weigted Moving Average , WMA)。

【MACD】原理介绍

整个过程整理如下：

（三）原理拓展
既然柱子形态具有又稳又快的特点，那么如何利用呢？方法就是：
利用稳定快速的柱子变化，反推稳定快速的DIF变化，再反推杂乱的K线变化。
如下图：

2、DIF一旦开始变小，因为稳定，DIF还将继续变小，说明12、26日均线的距离差将继续变小，呈稳定的收敛状态。
因为长期26日均线比较稳定，仍会继续向上，为了保证稳定的收敛状态，则：
（1）要么短期12均线掉头向下（即K线下跌），迎向26日均线汇合
（2）要么短期12均线原地走平（即K线盘整），等待26日均线上来

其实，就是指标与K线的两种关系：
（1）同步：K线下跌，指标DIF下跌
（2）盘调：K线盘整，指标DIF下跌

小结

MACD指标被称为“指标之王”，必然有其独到之处。MACD全称：Moving Average Convergence / Divergence，意思是“均线的收敛/发散”，说明MACD指标主要是反映均线的收敛、发散的，所以也可把它称为“聚散指标”。