MACD triggers technical signals when it crosses above (to buy) or below (to sell) its signal line. The speed of crossovers is also taken as a signal of a market is overbought or oversold.
crosses below the MACD signal line (the 9-day moving average of the MACD line). Prices are oversold. The relative strength index (RSI) which is a momentum oscillator is printing a reading of 21 ...