stock indicatorsfor .NET

Balance of Power (BOP) ​

Created by Igor Levshin, the Balance of Power (aka Balance of Market Power) is a momentum oscillator that depicts the strength of buying and selling pressure. [Discuss] 💬

csharp
// C# usage syntax
IReadOnlyList<BopResult> results =
  bars.ToBop(smoothPeriods);

Parameters ​

paramtypedescription
smoothPeriodsintNumber of periods (N) for smoothing. Must be greater than 0. Default is 14.

Historical price bars requirements ​

You must have at least N periods of bars to cover the warmup periods.

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

Response ​

csharp
IReadOnlyList<BopResult>
  • This method returns a time series of all available indicator values for the bars provided.
  • It always returns the same number of elements as there are in the historical price bars.
  • It does not return a single incremental indicator value.
  • The first N-1 periods will have null values since there's not enough data to calculate.

BopResult ​

propertytypedescription
TimestampDateTimeDate from evaluated TBar
BopdoubleBalance of Power

Utilities ​

See Utilities and helpers for more information.

Chaining ​

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

csharp
// example
var results = bars
    .ToBop(..)
    .ToSlope(..);

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

See Chaining indicators for more.

Streaming ​

Use the buffer-style List<T> when you need incremental calculations without a hub:

csharp
BopList bopList = new(smoothPeriods);

foreach (IBar bar in bars)  // simulating stream
{
  bopList.Add(bar);
}

// based on `ICollection<BopResult>`
IReadOnlyList<BopResult> results = bopList;

Subscribe to a BarHub for advanced streaming scenarios:

csharp
BarHub barHub = new();
BopHub observer = barHub.ToBopHub(smoothPeriods);

foreach (IBar bar in bars)  // simulating stream
{
  barHub.Add(bar);
}

IReadOnlyList<BopResult> results = observer.Results;

See Buffer lists and Stream hubs for full usage guides.