Swing Index (SI)
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    Swing Index (SI)

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    Article summary

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    Swing Index (SI) is an indicator that attempts to predict future short-term price movements. SI is used as a part of Accumulation Swing Index and is calculated as the difference between the current and previous OHLC values.

    SI = 50 x (C- C + 1/2 (Cy - Oy) + 1/4 (C - O) / R) x K/T

    C – today's closing price
    Cy – yesterday's closing price
    H – today's highest price
    H–  yesterday's highest price
    K –  the larger of Hy - C and Ly - C
    L – today's lowest price
    Ly –  yesterday's lowest price
    O – today's opening price
    Oy – yesterday's opening price
    T – the maximum amount of price change for the day
    R – varies based on the relationship between C, Hy  and  Ly (see table below)

    To obtain R, first determine the largest of:
    (1) H - Cy
    (2) L - Cy
    (3) H - L
    If (1) is largest, R = H - C- 1/2 (L - Cy) + 1/4 (C - Oy)
    If (2) is largest, R = L - C- 1/2 (H - Cy) + 1/4 (C - Oy)
    If (3) is largest, R = H - L + 1/4 (Cy - Oy)

    Swing IndexSwing Index 


    LimitThe limit move for a security


    The plot renders the data you are working with on the chart. You can show/hide a plot by clicking the corresponding item in the settings. Every plot has a set of basic settings that you can change: color, weight, and type.

    SIThe Swing Index plot
    ZeroThe zero level

    Click the color rectangle under the plot's name to open the palette. Use the slider at the bottom to set the opacity of the color.


    To create a custom color:

    1. Clickto open the color picker
    2. By using the slider at the bottom, adjust the main color
    3. Then, set a shade for the main color on the palette

    The custom-created colors are added to your palette. To remove a custom color, drag it out of the palette.

    Change the value (in px) to adjust the thickness of the plot.
    The following plot types are available:
    • Linear. The plot is displayed as a line.
    • Column. The plot is displayed as a histogram.
    • DifferenceThe plot is displayed as a line which represents the difference between High and Low prices of the bar.
    • PointsThe plot is displayed as points.
    • Text above candleThe plot is displayed as the price labels above candles on the chart.
    • Text below candleThe plot is displayed as the price labels below candles on the chart.
    • Triangle above candleThe plot is displayed as triangles above candles on the chart.
    • Color candle. The candles on candle-type charts are highlighted with specified colors.


    Check Overlaying to display the indicator on the chart. Otherwise, the indicator is shown in a study pane down below.

    Note: To reset the settings, click Restore to Default next to the SETTINGS: INDICATOR'S TITLE

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