What is RSI? - Relative Strength Index - Fidelity The Relative Strength Index (RSI), developed by J Welles Wilder, is a momentum oscillator that measures the speed and change of price movements The RSI oscillates between zero and 100
Relative strength index - Wikipedia The RSI is classified as a momentum oscillator, measuring the velocity and magnitude of price movements Momentum is the rate of the rise or fall in price The relative strength RS is given as the ratio of higher closes to lower closes
What is RSI Indicator? | Relative Strength Index Explained What is the RSI indicator? The relative strength index (or RSI) is a popular technical analysis tool used in stock trading that indicates momentum by measuring the speed and change of price movements to assess overvalued or undervalued conditions in the price of that asset
Relative Strength Index (RSI) - Definition, Guide, How It Works The Relative Strength Index (RSI) is one of the most popular and widely used momentum oscillators It was originally developed by the famed mechanical engineer turned technical analyst, J Welles Wilder