EACH PROFILE REPRESENTS EITHER THE DAY SESSION OR THE GLOBEX SESSION. THE DAY SESSION BEGINS WITH THE CAPITAL LETTERS "A"FOR THE FIRST 30 MINUTE PERIOD, "B FOR THE SECOND 30 MINUTE PERIOD, ETC, AND ENDS IN "N" PERIOD. THE GLOBEX SESSION STARTS THE NEXT OVERNIGHT SESSION AND ARE IN LOWER CASE LETTERS, AND REFLECT THE SAME STRUCTURE. THE BLACK HORIZONTAL BARS REFLECT THE AMOUNT OF VOLUME TRADED AT THE RESPECTIVE PRICE OVER TIME. THE INITIAL BALANCE AND VALUE ARE PLOTTED VERTICALLY ON THE LEFT SIDE OF THE PROFILES IN BLUE AND YELLOW RESPECTIVELY.