Forex trading is both an art and a science, but we must say that it veers toward science most of the time. This is evidenced by the reliance of forex traders on trading signals that are, in turn, provided by computerised programs. We shall discuss two of the most commonly used trading signals used by traders to decide when to buy and when to sell currencies.
First, the Moving Average Convergence Divergence (MACD) displays the relationship between two types of moving averages, thus, its usefulness as a momentum indicator. It is computed by subtracting the 26-day EMA from the 12-day EMA. The resulting MACD is then charted along with the signal line the 9-day EMA, in this case, the latter plotted on top of the former which then functions as the trigger for buying and selling.
There are three ways in which the MACD is used to signal buying and selling in forex trading, as follows: