Let us see if we can make this any simpler, ihub's system and all L2 service that most common folks are using CAN NOT DETECT 5 DIGIT TRADING, they were all designed for 4 DIGIT TRADING ONLY
If you will notice ihub's system example is a big board stock with 2 decimal places and does not goes to 5 decimal places, end of story
5 digit trading does not get classified in the "?" category, they get classified in the "sells" category, only technically unreadable trades go into the "?" category.