MACD, also known as the moving average of similarities and differences, is developed from the double exponential moving average. Subtract the fast exponential moving average (EMA 12) from the slow exponential moving average (EMA26) to get the fast DIF, and then use 2× (the 9-day weighted moving average DEA of the fast DIF-DIF) to get the MACD column. The meaning of MACD is basically the same as that of double moving averages, that is, the dispersion and aggregation of fast and slow moving averages represent the current long and short state and possible stock price development trend, but it is easier to read. The change of MACD represents the change of market trend, and MACD of different K-line levels represents the current horizontal cycle trading trend.

1. In application, MACD should first calculate the fast moving average (usually 12 days) and the slow moving average (usually 26 days). These two values are used as the basis to measure the "difference" between the two (fast line and slow line). The so-called "DIF" is the 12 moving average minus the 26-day moving average. So in the continuous upward trend, the 12 moving average is higher than the 26-day moving average. The positive deviation value (+DIF) will be larger and larger. On the contrary, in the downward trend, the deviation value may become negative (-DIF), and the absolute value will become larger and larger. For market reversal, the positive deviation or negative deviation should be reduced to a certain extent, which is indeed a signal of market reversal. The inversion signal of MACD is defined as the 9-day moving average (9-day DIF) of the "deviation value".

2. Due to the convenience of online stock trading, the rapid spread of information and the convenience brought by software analysis, more and more investors tend to technical analysis. Among the technical indicators, KDJ and MACD are widely used by investors. Most non-professional investors think that the KDJ index transmits too many trading signals and has a high probability of making mistakes, so ordinary investors are often not suitable for this judgment index. Compared with KDJ, the use of MACD indicator is relatively simple and the error probability is small. Especially when judging the long-term trend, the MACD index of long-period K-line has higher accuracy.

3. It is found that the weekly K-line MACD index has high accuracy in judging the mid-and long-term inflection point and can be used as the first reference index for medium-and long-term investors. For long-term investment, investing in the stock market in this way is obviously stronger than holding index funds, which can achieve better asset appreciation and preservation. In order to share the actual research and judgment of weekly K-line MACD technical indicators, firstly, online stock analysis software had better use (12,26,9) parameters to analyze weekly K-line. When the MACD value exceeds 5 and the indicator appears red column, buy it at the opening of the second week, sell it at the opening of the second week, and the indicator becomes green column.