https://www.fidelity.com/learning-center/trading-investing/technical-analysis/technical-indicator-guide/relative-vigor-index
What Is The Relative Vigor Index - RVI? - Fidelity
The Relative Vigor Index (RVI) is an oscillator based on the concept that prices tend to close higher than they open in up trends and close lower than they...
what is therelative vigor indexrvifidelity