KD - Fast

Modified on Mon, 08 May 2023 at 07:13 PM

The KD - Fast (Fast Stochastic) indicator is one of the George С. Lane’s stochastic oscillator types, namely the fast stochastic. The Fast Stochastic indicator is an indicator which shows the ratio between the current closing price and the high/low of the preset period, that is, the indicator is calculated on the moving data window and shows the price change rate. The Fast Stochastic indicator is displayed on the chart in the form of two lines: %K and %D.

The classic formula for the Fast Stochastic indicator calculation is:
%K(i) = 100*(Close(i) - MaxHigh(N)) / (MaxHigh(N) - MinLow(N))

%D(i) = MA(%K(i), P)


Close(i) - the current bar closing price

MaxHigh(N) - the maximum High for N previous periods

MinLow(N) - the minimum Low for N previous periods

MA - moving average

N - the High/Low calculation range length

P - the smoothing period for %D(i)

The indicator view in the chart.

The indicator has the following parameters:


Period %K - setting of the %K period for the Stochastic calculation.

Period %D - setting of the %D period for the Stochastic calculation.


Panel/Moving average period - selection of the indicator location in the chart:

  • New panel
  • Chart

Line, Moving average

Show value - display of the indicator value on the price scale on the left.

Scale/Auto-scaling - if this option is on, the scale will be automatically calculated, based on the minimum and maximum indicator values, so that the indicator would fit in the chart.

Color - color setting of the indicator.

Visual type - visual setting of the indicator display in the chart:

  • Line
  • Histogram
  • Hash
  • Block
  • Cross
  • Square
  • Dots
  • Up arrow
  • Down arrow
  • Axis label
  • Hide

Line style - setting of the line display style:

  • Solid
  • Dash
  • Dash - dot
  • Dash - dot - dot

Width - setting of the indicator line width.

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