Market lines

DOMTrader displays three market lines: high, low, and market. The green and red lines represent the maximum and minimum trade prices for the contract during the current trading day.

If there are valid best bid and best ask values, and the best ask is equal to the best bid plus tick size value, the market line is displayed. If best bid or best ask prices are not valid for the contract, of if there is a gap between the best bid and best ask rows, the market line is not displayed.