A TICK REVERSAL CHART SUCH AS THIS, EXPRESSES MOVEMENT NOT IN TERMS OF TIME, BUT IN TERMS OF MOVEMENT. IT STARTS A NEW COLUMN WHEN PRICE MOVES 5 TICKS IN THE OPPOSITE DIRECTION. ALSO REFLECTED IN ITS STRUCTURE IS THE BID VS ASK, EXPRESSED IN CONTRASTING COLORS AT EACH PRICE, AND CAN BE EXPRESSED IN DIFFERENT FORMS, SUCH AS DELTA, TOTAL VOLUME ETC.