Relative Strength Index: The Basic Concept

The Relative Strength Index (RSI) is a trading indicator in the technical analysis of financial markets. It is intended to indicate the current and historical strength or weakness of a market based on the closing prices of completed trading periods. It assumes that prices close higher in strong market periods, and lower in weaker periods and computes this as a ratio of the number of incrementally higher closes to the incrementally lower closes.
The Relative Strength Index (RSI) is a financial technical analysis momentum oscillator measuring the velocity and magnitude of directional price movement by comparing upward and downward close-to-close movements.

Momentum measures the rate of the rise or fall in stock price. Is the momentum increasing in the “up” direction, or is the momentum increasing in the “down” direction.

A trader using RSI should be aware that large surges and drops in the price of an asset will affect the RSI by creating false buy or sell signals. The RSI is best used as a valuable complement to other stock-picking tools.
The citler’s  RSI is popular because it is relatively easy to interpret.