Forex encyclopedia

Relative Vigor Index (RVI) – is an oscillator used for technical analysis in Forex. An author of this index is John Enlers known for application of cycles in technical analysis of the market. The first time RVI indicator was mentioned in Stocks and Commodities magazine in 2002. In this article author says that during growth close price of bar is higher than open price and the opposite tendency was observed by him in descending market. RVI index is built on the basis of this statement.

Parabolic SAR is the technical indicator developed by Welles Wilder for analyzing trend movements. The first time it was announced in a famous book “ New Concepts in Technical Trading Systems” published in 1976. SAR stands for as “stop and reverse”. Parabolic SAR is one of a few indicators that signalize about closing of positions. In many respects Parabolic is similar to a moving average with the only difference that SAR can change position against price. Under ascending tendency, the indicator is drawn under prices (candles, bars), under descending tendency it is put above prices. When price crosses Parabolic line, reversal of the indicator takes place.