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    Price axis
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      Price axis

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        Article summary

        Price axis is a price scale (Y-axis) which is used to represent the relationship between price and time. The Price Axis can be customized depending on your needs. You can change the scale type, its position, show labels and lines, invert scale, move the scale to the left side of the charts, and so on.

        Price axis Right-click the price axis to open the shortcut menu with the following options:

        Auto-scale price axis. Turns on auto-scale for the price axis. You can choose what objects on the chart the price axis should be fit to while auto-scaling:

        • Fit Studies. The price axis is scaled automatically to fit indicators.
        • Fit Positions. The price axis is scaled automatically to fit positions.
        • Fit Orders. The price axis is scaled automatically to fit orders.
        Note: The auto-scale works for Regular and Logarithmic scale types only

        Invert scale. Inverts the direction of the price axis.
        Lock scale. Locks the price axis so that it adjusts to the bars as you zoom in and out of the chart.
        Move scale to the left. Attaches price axis to the left side of the chart.

        Type of the price axis:

        • Regular. A linear price scale where the prices are positioned equidistantly (equally far away) from one another. 
        • Percent. The scale displays percentages, not price values. The chart represents OHLC prices as the percentage change, where 0% corresponds to the starting price of the first candle visible on the chart.
          The percent price axis is generally used in the Compare charts mode. You can also click % in the bottom-right corner of the chart to activate the percent price axis.
          Formula
          Percentage value = (current price - starting price)  / starting price * 100, where:

          Current price – the current price of a choosen instrument. The price type is set in the Chart settings > Data > Price type.
          Starting price – the price at which a candle begins.
        • Logarithmic. A logarithmic price scale represents the distance between values as proportional logarithms. This means that the prices are not equidistant, but are placed according to a logarithmic change between them. You can also click Log in the bottom-right corner of the chart to activate logarithmic price axis.
        Logarithmic price axis
        Example: The distance between 1.2 and 2.4 prices is equal to the distance between 0.5 and 1.0. In both cases the second value is twice as bigger than the first one, so the growth is equal to 100%. It means that both of the prices will be shown equidistantly on the scale.  

        Labels and lines. Here you can choose whether to display only labels, only lines or both on the price axis. Each option on the menu has 4 available modes, click the icon to toggle between the modes:

        1. Show only labels
        2. Show only lines
        3. Show both labels and lines
        4. Show neither labels nor lines

        You can set labels and lines for the following objects on the charts and the price axis:

        • Symbol
        • Indicators
        • Bid and ask
        • High and low
        • Previous day close
        • Pre and post market close

        Descriptions. Adds captions to the lines and labels that you've set.
        Countdown to bar close. Displays a bar lifetime on the price axis.

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