TickBar™ Tick bars plot the price of each transaction. Tick bars differ from time-based bars in that tick bars plot prices based on a transaction-by-transaction basis while time-based bars plot prices during a specified time period. A transaction can represent 100 shares, 200 shares, 1,000 shares, etc. When plotting tick bars, price and number of ticks are the only factors used as time and volume are not considered. Note: You can use tick data only if you collect intra-day data.