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Relative Volatility Index (RVI)

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Developed by Donald Dorsey, the Relative Volatility Index is the RSI using the standard deviation over the indicator period in place of the daily price change. The RVI measures the direction of volatility on a scale from 0 to 100. Readings below 50 indicate that the direction of volatility is to the downside and that you should be looking to sell, readings above 50 indicate that the direction of volatilty is to the upside and that you should be looking to buy.




RVI(int period)
RVI(IDataSeries input, int period)


Returns default value
RVI(int period)[int barsAgo]
RVI(IDataSeries input, int period)[int barsAgo]



Return Value

double; Accessing this method via an index value [int barsAgo] returns the indicator value of the referenced bar.





Indicator source data (?)


Number of bars used in the calculation




// OnBarUpdate method of a stratgegy
protected override void OnBarUpdate()
   // Check for buy condition
  if (RVI(14)[0] > 50 && CrossAbove(SMA(9), SMA(14), 1))
      // System logic here...



Source Code

You can view this indicator method source code by selecting the menu Tools > Edit NinjaScript > Indicator within the NinjaTrader Control Center window.