Technical indicators measure the direction and strength of a trend by comparing prices to an established baseline. They are a  way to assess the price of a stock and estimate its future trajectory...... They help study how price movements in the past emulate the future.  Technical indicators are used alot in equity and forex markets buy aren't limited to either of these.
POP QUIZ: (#1)  WHAT ARE SOME OTHER MARKETS WHERE TECHNICAL INDICATORS ARE USED OR ARE USEFUL ??
As mentioned before,Technical indicators are used to see past trends and anticipate future moves. Moving averages, relative strength index, and stochastic oscillators are examples of technical indicators. Trading strategies, including entry, exit, and trade management rules, often use one or more indicators to guide day-to-day decisions. The goal when using indicators is to identify trading opportunities. For example, a moving average crossover often signals an upcoming trend change. In this instance, applying the moving average indicator to a price chart allows traders to identify areas where the trend may run out of gas and change direction, which creates a trading opportunity.
  POP QUIZ  (#2) WHAT ARE THE FOUR MAIN TYPES OF TECHNICAL INDICATORS ??
Technical analysis is a tool, or method, used to predict the probable future price movement of a security – such as a stock or currency pair – based on ma...