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Percentage Volume Oscillator (PVO)

The Percentage Volume Oscillator is a simple oscillator view of the rate of change between two converging / diverging exponential moving averages of Volume. [Discuss] 💬

chart for Percentage Volume Oscillator (PVO)

// C# usage syntax
IEnumerable<PvoResult> results =
  quotes.GetPvo(fastPeriods, slowPeriods, signalPeriods);

Parameters

fastPeriods int - Number of periods (F) for the faster moving average. Must be greater than 0. Default is 12.

slowPeriods int - Number of periods (S) for the slower moving average. Must be greater than fastPeriods. Default is 26.

signalPeriods int - Number of periods (P) for the moving average of PVO. Must be greater than or equal to 0. Default is 9.

Historical quotes requirements

You must have at least 2×(S+P) or S+P+100 worth of quotes, whichever is more, to cover the warmup and convergence periods. Since this uses a smoothing technique, we recommend you use at least S+P+250 data points prior to the intended usage date for better precision.

quotes is a collection of generic TQuote historical price quotes. It should have a consistent frequency (day, hour, minute, etc). See the Guide for more information.

Response

IEnumerable<PvoResult>

This method returns a time series of all available indicator values for the quotes provided.
It always returns the same number of elements as there are in the historical quotes.
It does not return a single incremental indicator value.
The first S-1 slow periods will have null values since there’s not enough data to calculate.

⚞ Convergence warning: The first S+P+250 periods will have decreasing magnitude, convergence-related precision errors that can be as high as ~5% deviation in indicator values for earlier periods.

PvoResult

Date DateTime - Date from evaluated TQuote

Pvo double - Normalized difference between two Volume moving averages

Signal double - Moving average of the Pvo line

Histogram double - Gap between of the Pvo and Signal line

Utilities

See Utilities and helpers for more information.

Chaining

Results can be further processed on Pvo with additional chain-enabled indicators.

// example
var results = quotes
    .GetPvo(..)
    .GetSlope(..);

This indicator must be generated from quotes and cannot be generated from results of another chain-enabled indicator or method.