EMA
The EMA is very popular in virtual currency trading (BTC/USD).Exponential moving average (EMA) differs from a simple moving average (SMA) by a weighted average being given to recent price data. The EMA reacts much more quickly to recent price changes than the SMA does.
Trend Indicator
Using daily chart, traders follow the 5-13 EMA. When the 5 is above the 13 EMA (green) the trend is strongly rooted bullish. When the 5 is below the 13 EMA (red) the trend is bearish. Blue crosses signal when a trend has changed.