Bid Tick Indicator
The bid tick indicator is an arrow that indicates the change in the bid price of a symbol.
If the bid tick is up, the indicator appears as a green up arrow, or a plus sign (+). When the bid tick is down, the indicator appears as a red down arrow, or a minus sign (-). The bid tick indicator is not an indication of an up or downtick of the symbol's last price, but rather the bid price of the symbol.