Relative Strength Index (RSI) is a momentum oscillator, developed by J. Welles Wilder, which measures the speed and velocity of price movement of trading instruments (stocks, commodity futures, bonds, forex, etc.) over a specified period of time.

The objective of the RSI indicator is to measure the change in price momentum.

It is a leading indicator and is widely used by Technical Analysts over the globe.

RSI can be used to spot a general trend.

It is considered overbought when it goes above 70 and oversold when it goes below 30.

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