Relative Strength Index (RSI)

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Definition

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.

Formula

RSI = 100 – 100 / (1 + RS)

Where RS is equal to Average Gain on up periods / average loss on down periods

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