Relative Strength Index

Trading

Quick Definition

Relative Strength Index (RSI) is a technical analysis indicator that measures the speed and change of price movements to identify overbought or oversold conditions in a stock or asset.

Detailed Explanation

RSI is a momentum oscillator that moves between 0 and 100 and helps traders understand whether a stock is overvalued or undervalued in the short term.

It is widely used in stock markets like the National Stock Exchange and Bombay Stock Exchange under regulation of the Securities and Exchange Board of India.

RSI Formula (Basic Idea)

👉 RSI = 100 – [100 ÷ (1 + RS)]
(RS = Average Gain ÷ Average Loss)

RSI Levels & Interpretation

  • Above 70: Overbought → Possible price correction
  • Below 30: Oversold → Possible price rebound
  • Around 50: Neutral trend

Why RSI Matters

  • Helps identify entry and exit points
  • Detects trend strength
  • Used with other indicators for confirmation

Advanced Insight

  • Bullish Divergence: Price falls, RSI rises → Potential uptrend
  • Bearish Divergence: Price rises, RSI falls → Potential downtrend

Example

"If a stock’s RSI is 75, it may be overbought, indicating a possible short-term decline."

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