com.webcab.ejb.finance.trading.indicators
Interface AccumulateDistribute

All Superinterfaces:

EJBObject, Remote

public interface AccumulateDistribute

extends EJBObject

These indicators measure to what degree on net an asset is being accumulated (i.e. brought) or distributed (i.e. sold) by the market as a whole.

Method Summary

double	accumulationDistribution(double high, double low, double volume) The accumulation/distribution indicator (accumulationDistribution) illustrates the degree to which an asset is being accumulated or reduced by the market on a given day.
double	accumulationDistributionChange(double yesterdaysValue, double todaysValue) This method evaluates the change in the accumulationDistribution indicator over the previous two days.
double	accumulationDistributionPeriod(double[] highs, double[] lows, double[] volume) This indicator is a slight generalization of the AccumulationDistribution indicator above except that here the indicator may be evaluated with respect to a period of a number of days rather than with respect to a one day period.
double	accumulationDistributionPeriodChange(double previousPeriodsValue, double latestPeriodsValue) This method evaluates the change in the accumulationDistributionPeriod indicator over the previous two periods.
double	chaikenOscillator(double[] high, double[] low, double[] volume, double smoothingFactor) This method implements the Chaikin Oscillator (also known as the Chaikin A/D Oscillator.
double	chaikinMoneyFlow(double[] high, double[] low, double[] close, double[] volume) Chaikin Money Flow (CMF) is a volume weighted average of Accumulation/Distribution over the specified period, which is usually taken to be 21 days.

Methods inherited from interface javax.ejb.EJBObject

getEJBHome, getHandle, getPrimaryKey, isIdentical, remove

Method Detail

accumulationDistribution

public double accumulationDistribution(double high,
                                       double low,
                                       double volume)
                                throws RemoteException

The accumulation/distribution indicator (accumulationDistribution) illustrates the degree to which an asset is being accumulated or reduced by the market on a given day. The indicator uses the closing price's proximity to the high or low to determine if accumulation or reduction is taking place in the market. The proximity measure if then multiplied by the volume in order to give more weight to moves with correspondingly higher volume.

Application
A divergence between the price action and the accumulationDistribution indicator can signal that a trend is nearing completion, a trends continuation and imminent break-outs from trading ranges. The actual value of this indicator is of no significance, what is significant is its change in value relative to the previous periods which can warn of a possible break-out during a trading range (falling/rising indicator), the continuation of a trend (higher highs in uptrend, or lower lows in downtrend) or a change/completion of a trend (divergence between the price action and the direction of the indicator).

Parameters:

high - the intraday high

low - the intraday low

volume - the days volume

Throws:

IllegalArgumentException - thrown is any of the parameters are strictly negative numbers.

RemoteException

See Also:

accumulationDistributionChange

accumulationDistributionPeriod

public double accumulationDistributionPeriod(double[] highs,
                                             double[] lows,
                                             double[] volume)
                                      throws RemoteException

This indicator is a slight generalization of the AccumulationDistribution indicator above except that here the indicator may be evaluated with respect to a period of a number of days rather than with respect to a one day period.

The period accumulation/distribution indicator (accumulationDistributionPeriod) illustrates the degree to which an asset is being accumulated or distributed by the market on a given period. The indicator uses the closing price's proximity to the high or low over the period to determine if accumulation or reduction is taking place in the market. The proximity measure if then multiplied by the volume over the period in order to give more weight to moves with correspondingly higher volume.

Interpretation
A divergence between the price action and the AccumulationDistribution indicator can signal that a trend is nearing completion, a trends continuation and break-outs from trading ranges. The actual value of this indicator is of no significance, what is significant is its change in value relative to the previous periods which can warn of a possible break-out during a trading range (falling/rising indicator), the continuation of a trend (higher highs in uptrend, or lower lows in downtrend) or a change/completion of a trend (divergence between the price action and the direction of the indicator).

Parameters:

highs - an array of the intraday highs over the period

lows - an array of the intraday lows over the period

volume - an array of the volume on each day over the period

Throws:

IllegalArgumentException - throw when the three arrays highs, lows, volume do not have the same length, and when any element of these three arrays is a strictly negative number.

RemoteException

See Also:

accumulationDistributionPeriodChange

accumulationDistributionChange

public double accumulationDistributionChange(double yesterdaysValue,
                                             double todaysValue)
                                      throws RemoteException

This method evaluates the change in the accumulationDistribution indicator over the previous two days.

Parameters:

yesterdaysValue - the value of the accumulationDistribution indicator yesterday

todaysValue - the value of the accumulationDistribution indicator today

RemoteException

See Also:

accumulationDistribution

accumulationDistributionPeriodChange

public double accumulationDistributionPeriodChange(double previousPeriodsValue,
                                                   double latestPeriodsValue)
                                            throws RemoteException

This method evaluates the change in the accumulationDistributionPeriod indicator over the previous two periods.

Parameters:

previousPeriodsValue - the value of the accumulationDistributionPeriods indicators value in the previous period

latestPeriodsValue - the value of the accumulationDistributionPeriods indicators value in the latest period

RemoteException

See Also:

accumulatedDistributionPeriod

chaikenOscillator

public double chaikenOscillator(double[] high,
                                double[] low,
                                double[] volume,
                                double smoothingFactor)
                         throws RemoteException

This method implements the Chaikin Oscillator (also known as the Chaikin A/D Oscillator. The Chaiken Oscillator presents the information contained within the A/D indicator in the convenient form of an oscillator. That is, the Chaikin Oscillator is simply the Moving Average Convergence Divergence indicator (MACD) applied to the Accumulation/Distribution Line.

Interpretation
A sell signal is when price action develops a higher high into overbought zones and the Chaikin Oscillator diverges with a lower high and begins to fall. Conversely, a buy signal is generated when price action develops a lower low into oversold zones and the oscillator diverges with a higher low and begins to rise. The Chaikin Oscillator can also be used to time entry to existing trends by either buying the dip (when the oscillator turns down) or selling the rally (when the oscillator turns up).

Evaluation
The Chaiken Oscillator is given by:

EMA_3(Accumulate/Distribution) - EMA_10(Accumulate/Distribution)

where EMA_3 and EMA_10 is the exponential moving average over 3 and 10 days respectively; and Accumulate/Distribution is the corresponding indicator over those 3 or 10 days respectively.

Parameters:

high - an array of 10 elements where the first term is the high in the last trading period, the second term is the high in the trading period before that, and so on

low - an array of 10 elements where the first term is the low in the last trading period, the second term is the low in the trading period before that, and so on

volume - an array of 10 elements where the first term is the volume in the last trading period, the second term is the volume in the trading period before that, and so on

smoothingFactor - the number between 0 and 1. The lower the number the more sensitive the moving average is.

Throws:

IllegalArgumentException - thrown when the three arrays high, low, volume do not have the same length and when the smoothing factor does not lie within the closed interval [0,1].

RemoteException

chaikinMoneyFlow

public double chaikinMoneyFlow(double[] high,
                               double[] low,
                               double[] close,
                               double[] volume)
                        throws RemoteException

Chaikin Money Flow (CMF) is a volume weighted average of Accumulation/Distribution over the specified period, which is usually taken to be 21 days. The CMF offers a volume weighted indicator on the following two principles:

The nearer the close is to the high the more accumulation is taking place.

The nearer the close is to the low the more distribution is taking place.

Interpretation
A sell signal is generated in positive over brought territory when higher highs diverge into a lower high and the indicator continues to decrease. Conversely, a buy signal in generated in negative oversold territory when lower lows diverge into a high low and the indicator continues to increase.

The CMF indicator can be used as a confirmation signal after a breakout of a trading range. When a market breaks higher then the breakout is confirmed if the CMF moves into positive territory and continues to get stronger. Conversely, if the market down after a trading range then the breakout if confirmed if the CMF move into negative territory and continues to weaken.

Evaluation
The CMF indicator is evaluated for the following steps:

Evaluate the Volume Weighted Accumulation/Distribution over each of the days within the period considered for the calculation. The Volume Weighted Accumulation/Distribution on each day is given by:

(((Close - Low) - (High - Close))/(High - Low)) * Volume

Sum the Volume Weighted Accumulation/Distribution over the period and the divide the result by the sum of the volume over the period.

Parameters:

high - an array where the first term in the high in the latest trading period and the second term is the high in the previous trading periods and so on... Until the last term which is the highest market price during the first period which is used in the evaluation of the CMF indicator

low - an array where the first term in the low in the latest trading period and the second term is the low in the previous trading periods and so on... Until the last term which is the lowest market price during the first period which is used in the evaluation of the CMF indicator.

close - an array where the first term in the close in the latest trading period and the second term is the close in the previous trading periods and so on... Until the last term which is the closing market price during the first period which is used in the evaluation of the CMF indicator

volume - an array where the first term in the volume in the securities latest trading period and the second term is the securities volume in the previous trading periods and so on... Until the last term which is the securities volume during the first period which is used in the evaluation of the CMF indicator

Throws:

IllegalArgumentException - thrown if the arrays high, low, close, volume do not have the same length or if any element of these arrays is a strictly negative number.

RemoteException