Moving Average Convergence Divergence (MACD) is a combination of two single lines those two are designed by Exponential Moving Average (EMA). Traders use MACD to take the signal of bullish or bearish momentum of prices to buy or sell.

## What is the MACD indicator?

The MACD (Moving Average Convergence Divergence) is a Convergence and Divergence indicator. The indicator was first described by **Gerald Appel** in the book **Systems and Forecasts,** in 1979. Later in 1986, Thomas Aspray added a column chart to MACD and spread it to make it more popular.

This indicator is very common in data analysis. It allows you to predict the trend of price movements such as the time of ending the trend, reversing, accelerating, decelerating, starting a new trend. Therefore, it is very popular among investors.

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## Composition of the MACD indicator

The MACD indicator consists of 4 separate components:

- MACD line: The difference of EMA-26 (*) and EMA-12 (**) with the formula
**MACD = EMA-26 – EMA-12** - The Signal: The exponential moving average of the previous nine sessions called 9-EMA.
- MACD History: This is the difference taken from the MACD line minus the Signal line.
- Zero line: line of 0 in the middle.

EMA stands for Exponential Moving Average, where:

(*) The exponential moving average of the previous 26 sessions.

(**) The exponential moving average of the previous 12 sessions

## How to use the MACD indicator

MACD is a trend indicator based on the line chart, so it is easy to understand and use. Investors often combine this MACD with a number of other indicators, such as the Bollinger Bands indicator to identify trends more accurately.

### The MACD cross the Signal line

Signals by Signal line is the most commonly used signal and is also very useful. This is a moment to buy/sell, and it depends on the direction of the MACD:

- The MACD line is touching the signal of an upward signal: The signal shows that the price trend is increasing, the moment of buying.
- The MACD is ticking the Signal line downward: The signal that the trend is down, so sell right now to take the profit.

### MACD crosses Zero line

Similar to crossing Signal line, MACD crossing Zero line also shows one of the following two trends:

- The MACD crosses the Zero line in an upward direction: it is a signal that the price is moving up.
- The MACD crosses the Zero line in the downward direction: it is a signal that the price is in the downtrend.

### Signs of convergence and divergence – signs of price reversal

#### Signal of convergence

- This occurs when the MACD is rising, but the price graph is down.
- The price chart is falling, but because the oscillation is not strong enough to accelerate down, it is also hesitant. Indicates a signal that price is about to change direction.
- This is the golden time to buy the assets.

#### Signal for divergence

- Divergence is the phenomenon of two lines separated from each other. This is a phenomenon where the price chart goes up, but the MACD line goes down.
- Similar to the Convergence, the market has not enough motivation to push prices up, so it is still hesitant.
- 90% is the time to sell for profit.

## Note about the MACD indicator

Any chart has limitations or advantages in certain situations. So there are still many things to keep in mind when trading on the MACD indicator to avoid losing all.

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### Short-term MACD signal

The effectiveness of MACD reaches its peak in moderate time and short time. EMA-26, EMA-12, EMA-9 is the ratio of the number of sessions to achieve the most effectiveness. You can completely change it to another ratio, for example, EMA-18, EMA-8, EMA-6. Or you can increase or decrease the time of each session to get the MACD line that you think is most reasonable.

Remember that the MACD is not suitable for long-term signals.

### Signal is interference

Remember that indicators are also just a means for you to analyze data, to increase the probability of success exceeding 50%. Because the probability problem is based on historical data, the indicator transaction can also be wrong in an instant when it encounters abnormal interference, such as Bitcoin dropping $2000 in just a few minutes. It is important to always set a stop loss when to control trading.

### Analysis by combines many different indicators

The more indicators and tactics used together, and the more accurate the buy / sell probability. This is a basic indicator for newbies if you can, you should learn more advanced indicators.