Relative Strength Index (RSI)View Financial Glossary Index
The Relative Strength Index (RSI) is a metric between 0 and 100 that is used to define momentum in a certain security’s price movement. RSI above 70 can be viewed as overbought conditions in a security, and RSI below 30 can be viewed as oversold conditions.
RSI = 100 – 100 / (1 + RS)
Where RS is equal to Average Gain on up periods / average loss on down periods