Traders use Trading Indicator as technical analysis tool on price charts to ascertain market conditions. 
There are mainly two types of trading indicators

  • Leading Indicator
  • Lagging Indicator

When applied on a price chart of a security, Lagging indicators will analyse the past market condition and indicate momentum whereas Lagging Indicators will predict future price action of a security. 

There are 100’s of trading indicators to choose from. Some of the very popular one’s are below : 

Moving Average
 Exponential Moving Average
Moving Average Convergence Divergence (MACD) 
Relative Strength Index (RSI) 
Percentage Price Oscillator (PPO) 
Parabolic SAR
Average directional index
Stochastic oscillator
Standard deviation
Bollinger bands 
Fibonacci retracement 
Williams Percent Range (%R) 
Commodity Channel Index (CCI) 
Ichimoku cloud 
On-Balance volume (OBV)
Accumulation/Distribution line
Aroon indicator

Indicators drawn on top of existing chart are called Overlays and one’s drawn separately are oscillators.

Trading Indicators – Beginner