Supported Indicators

Chaikin Money Flow

Introduction

The Chaikin Money Flow Index (CMF) is a volume-weighted average of accumulation and distribution over a specified period. CMF = n-day Sum of [(((C - L) - (H - C)) / (H - L)) x Vol] / n-day Sum of Vol Where: n = number of periods, typically 21 H = high L = low C = close Vol = volume https://www.fidelity.com/learning-center/trading-investing/technical-analysis/technical-indicator-guide/cmf

To view the implementation of this indicator, see the LEAN GitHub repository.

Using CMF Indicator

To create an automatic indicator for ChaikinMoneyFlow, call the CMFcmf helper method from the QCAlgorithm class. The CMFcmf method creates a ChaikinMoneyFlow object, hooks it up for automatic updates, and returns it so you can used it in your algorithm. In most cases, you should call the helper method in the Initializeinitialize method.

public class ChaikinMoneyFlowAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private ChaikinMoneyFlow _cmf;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _cmf = CMF(_symbol, 20);
    }

    public override void OnData(Slice data)
    {

        if (_cmf.IsReady)
        {
            // The current value of _cmf is represented by itself (_cmf)
            // or _cmf.Current.Value
            Plot("ChaikinMoneyFlow", "cmf", _cmf);
        }
    }
}
class ChaikinMoneyFlowAlgorithm(QCAlgorithm):
    def initialize(self) -> None:
        self._symbol = self.add_equity("SPY", Resolution.DAILY).symbol
        self._cmf = self.cmf(self._symbol, 20)

    def on_data(self, slice: Slice) -> None:

        if self._cmf.is_ready:
            # The current value of self._cmf is represented by self._cmf.current.value
            self.plot("ChaikinMoneyFlow", "cmf", self._cmf.current.value)

For more information about this method, see the QCAlgorithm classQCAlgorithm class.

You can manually create a ChaikinMoneyFlow indicator, so it doesn't automatically update. Manual indicators let you update their values with any data you choose.

Updating your indicator manually enables you to control when the indicator is updated and what data you use to update it. To manually update the indicator, call the Updateupdate method. The indicator will only be ready after you prime it with enough data.

public class ChaikinMoneyFlowAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private ChaikinMoneyFlow _chaikinmoneyflow;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _chaikinmoneyflow = new ChaikinMoneyFlow(20);
    }

    public override void OnData(Slice data)
    {
        if (data.Bars.TryGetValue(_symbol, out var bar))
            _chaikinmoneyflow.Update(bar);

        if (_chaikinmoneyflow.IsReady)
        {
            // The current value of _chaikinmoneyflow is represented by itself (_chaikinmoneyflow)
            // or _chaikinmoneyflow.Current.Value
            Plot("ChaikinMoneyFlow", "chaikinmoneyflow", _chaikinmoneyflow);
        }
    }
}
class ChaikinMoneyFlowAlgorithm(QCAlgorithm):
    def initialize(self) -> None:
        self._symbol = self.add_equity("SPY", Resolution.DAILY).symbol
        self._chaikinmoneyflow = ChaikinMoneyFlow(20)

    def on_data(self, slice: Slice) -> None:
        bar = slice.bars.get(self._symbol)
        if bar:
            self._chaikinmoneyflow.update(bar)

        if self._chaikinmoneyflow.is_ready:
            # The current value of self._chaikinmoneyflow is represented by self._chaikinmoneyflow.current.value
            self.plot("ChaikinMoneyFlow", "chaikinmoneyflow", self._chaikinmoneyflow.current.value)

For more information about this indicator, see its referencereference.

Visualization

The following plot shows values for some of the ChaikinMoneyFlow indicator properties:

ChaikinMoneyFlow line plot.

Indicator History

To get the historical data of the ChaikinMoneyFlow indicator, call the IndicatorHistoryself.indicator_history method. This method resets your indicator, makes a history request, and updates the indicator with the historical data. Just like with regular history requests, the IndicatorHistoryindicator_history method supports time periods based on a trailing number of bars, a trailing period of time, or a defined period of time. If you don't provide a resolution argument, it defaults to match the resolution of the security subscription. 

public class ChaikinMoneyFlowAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private ChaikinMoneyFlow _cmf;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _cmf = CMF(_symbol, 20);

        var indicatorHistory = IndicatorHistory(_cmf, _symbol, 100, Resolution.Minute);
        var timeSpanIndicatorHistory = IndicatorHistory(_cmf, _symbol, TimeSpan.FromDays(10), Resolution.Minute);
        var timePeriodIndicatorHistory = IndicatorHistory(_cmf, _symbol, new DateTime(2024, 7, 1), new DateTime(2024, 7, 5), Resolution.Minute);
    }
}
class ChaikinMoneyFlowAlgorithm(QCAlgorithm):
    def initialize(self) -> None:
        self._symbol = self.add_equity("SPY", Resolution.DAILY).symbol
        self._cmf = self.cmf(self._symbol, 20)

        indicator_history = self.indicator_history(self._cmf, self._symbol, 100, Resolution.MINUTE)
        timedelta_indicator_history = self.indicator_history(self._cmf, self._symbol, timedelta(days=10), Resolution.MINUTE)
        time_period_indicator_history = self.indicator_history(self._cmf, self._symbol, datetime(2024, 7, 1), datetime(2024, 7, 5), Resolution.MINUTE)

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