Answer: True. If trading is suspended for a particular trading day, there are no prices or volume data available for that day. In such cases, when creating a chart, there are two common ways to represent the absence of data:
Blank space: The chart can show a blank space on that trading day, indicating that no data is available for that particular period.
Horizontal line (bar with no height): Another approach is to display a horizontal line (or bar) with no height, representing that there was no movement in the price or volume on that trading day.
Both methods are acceptable and widely used in financial charting. The choice between the two often depends on the specific preferences of the chart creator or the conventions followed in the financial industry or the charting software being used.