The Exponential Moving Average (EMA) is a type of weighted moving average that gives more importance to recent price data, making it more responsive to new information compared to the simple moving average (SMA). The EMA is calculated using a smoothing factor, which is based on the number of periods considered, allowing it to adjust more quickly to price changes. Traders often use the EMA to identify trends, potential reversals, and to generate buy or sell signals in various financial markets, as it helps to smooth out volatility and highlight the underlying trend.