What are charts?

The chart area of the chart tab or gadget displays either the historical development or the latest development of the main symbol’s price over a specified time range. Charts for the current day are updated as new data becomes available.

  1. Open the Chart tab or gadget, then enter the stock or underlying symbol. See View a chart for a stock symbol or View a chart for an option symbol for details. The chart area will populate with the latest or historical trade values, depending on the specified date range.

  2. The chart area includes:

    1. An information bar

      This displays basic information about the symbol entered, such as:

      1. Symbol name

      2. Listing exchange

      3. Price of the last trade

      4. Change in price compared to the previous day’s closing price in absolute and percentage values

      5. Level 1 quotes. See Level 1 columns for details.

        Note: price information displayed in the information bar does not depend on the chart’s visible time range, and thus will not change as you scroll across the chart.

    2. A chart header 

      This contains the following legends for the last or highlighted unit in the chart:

      1. Date

      2. Time

      3. Open price

      4. High price

      5. Low price

      6. Close price

      7. Price range

      8. Y-axis value (only when the chart area is active)

        • The header may display more than one legend if the chart contains more than one symbol or study.
        • When the cursor points to any unit within the chart area, the header displays corresponding time and date values. If the cursor points to a specific unit in the graph, such as a candle in a candle-style chart, the candle is highlighted to display the selection  . If the cursor points anywhere outside of the chart area of the chart tab, the header displays the last available values for the main symbol.

        • Select and hold the left mouse button over a price data unit to bring up an information overlay tooltip box, containing the following information: date, time, open, high, low, close, and volume.
        • The header may also include details for the comparison symbol or the technical study depending on your selection. To add symbols for comparison or to add a technical study, see Configure technical studies for a chart.
        • The colour used to display absolute and relative prices in the chart header legend will match the colour used to draw price-related studies for the comparison symbol on the chart.
    3. Price or percent value axis.

      • The price axis appears on the right side of the chart. It is determined by the selected date range for the stock, underlying symbol or technical study.

      • Charts can have multiple overlaid studies in the chart area of the tab but only one price or percent-value axis which corresponds to the primary data.

        Note: drawings do not affect the price axis. However, some technical studies such as RSI and ADX may affect the price axis as they do not take actual values into account, but rather provide a fixed value range of their own that determines the range for the price axis.

      • To specify a linear or logarithmic price axis, click Chart near the chart toolbar, then select Scale and click either Linear or Logarithmic in the list.

        Note: a price axis cannot be logarithmic if the range contains negative values.

      • When comparing symbols, the price axis automatically switches to percent view. This allows you to easily monitor price development in relation to the initial values of the selected symbols.
    4. Chart area. This is the main area of the chart tab or gadget. Each graph in the chart area contains:

      1. Vertical and horizontal gridlines. The vertical gridlines correspond to time values while the horizontal gridlines correspond to the Y-axis.

      2. All areas within the chart tab display the same vertical gridlines, as the time axis is shared across the tab. The horizontal gridlines are independent of each other.

      3. Overlays or linked studies. Depending on the technical study you select, the main symbol may be overlaid with data for that study without any linking, or data may be linked to the price of the main symbol.

    5. Time axis.

      • The time axis appears near the bottom of the chart tab. The axis displays the time value corresponding to the opening price selected for the chart.

      • The data sequences in the chart represent fixed time intervals defined by the chart’s frequency.

        Note: during extended hours when there is no trading, the time axis for the chart may display non-linear values.
      • You can define the frequency for the chart in ticks by choosing the tick value from the Frequency field. Click Refresh near the toolbar to receive the most recent data.

        Note: the time axis for the chart may display non-linear values.
    6. Chart preview.

      • The chart preview appears at the bottom of the chart tab under the time axis. It provides you with a graphical overview of the stock's performance.

      • You can control what data the chart displays using the range and frequency fields.

      • There are two slider handles that allow you to adjust the date range you want to view. Move the left slider to the left to view an earlier date or time; move the right slider to the right to view a later date or time. 

      • The area between the two sliders is called the date range bar. You can drag the entire bar to quickly view a specific date/time range, relative to the range and frequency you set.

      • For example, if you wanted to check how a stock is performing today in 15-minute intervals, you'd set the range to 1 d and the frequency to 15 m. Then, you'd move the left slider to 9:30 (start of trading day) and the right slider to 9:45. You could then drag the entire bar (i.e. the area between 9:30 and 9:45) to the right to quickly view the stock's performance over a 15-minute interval.

    At any time, to resize the chart area, you can hide or collapse the volume area of the chart tab by clicking -.

    To view pre-market and after-hours trading information, click Customize window Customize on the toolbar or on the gadget header, then click Settings. In the settings window, select the Show pre-market and after-hours trading checkbox, then click OK.

Tip: to zoom in on a selected region on the chart, move your cursor to the point where you want to begin zooming, then press and hold the left-click button as you drag the cursor to the end of the desired region. The selected area will begin to highlight as you drag the cursor. Release the left-click button to view the zoomed area.

Interpret trade volume

Trade volume is displayed in the volume area of the chart tab. By default, the volume area is displayed in an expanded form. Click - to collapse the volume area. This area shows volume of trades corresponding to the time and price values shown on the chart. The volume area may also contain some technical studies that are defined based on trade volume.

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