Technical indicators are mathematical calculations based on the price and volume of a security, such as stocks or commodities. They help traders analyze market trends and make informed decisions by providing visual representations of price movements. Common examples include moving averages and the Relative Strength Index (RSI). These indicators are often displayed on charts and can signal potential buy or sell opportunities. Traders use them to identify patterns, trends, and market momentum, which can enhance their trading strategies. However, it's important to remember that no indicator is foolproof and should be used in conjunction with other analysis methods.