« »

Price Momentum Oscillator (PMO)

Created by Carl Swenlin, the DecisionPoint Price Momentum Oscillator is double-smoothed momentum indicator based on Rate of Change (ROC). [Discuss] 💬

// C# usage syntax
IEnumerable<PmoResult> results =
  quotes.GetPmo(timePeriods, smoothPeriods, signalPeriods);

Parameters

timePeriods int - Number of periods (T) for ROC EMA smoothing. Must be greater than 1. Default is 35.

smoothPeriods int - Number of periods (S) for PMO EMA smoothing. Must be greater than 0. Default is 20.

signalPeriods int - Number of periods (G) for Signal line EMA. Must be greater than 0. Default is 10.

Historical quotes requirements

You must have at least N periods of quotes, where N is the greater of T+S,2×T, or T+100 to cover the convergence periods. Since this uses multiple smoothing operations, we recommend you use at least N+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<PmoResult>

• 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 T+S-1 periods will have null values for PMO since there’s not enough data to calculate.

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

PmoResult

Date DateTime - Date from evaluated TQuote

Pmo double - Price Momentum Oscillator

Signal double - Signal line is EMA of PMO

Utilities

• .Condense()
• .Find(lookupDate)
• .RemoveWarmupPeriods()
• .RemoveWarmupPeriods(qty)

See Utilities and helpers for more information.

Chaining

This indicator may be generated from any chain-enabled indicator or method.

// example
var results = quotes
    .Use(CandlePart.HL2)
    .GetPmo(..);

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

// example
var results = quotes
    .GetPmo(..)
    .GetRsi(..);