Nasdaq, 1 minutes, Bid/Ask Numbers Bars (Bid/Ask Footprint)

Sierra chart Nasdaq (NQ) 1-minutes chart showing Bid and Ask volume of each bar (Footprint). Levels framed in yellow with an extension line represent an unfinished auction. Red and cyan rectangles show 300% Bid/Ask diagonal imbalance. Statistics of each bars are on the bottom of the chart.