If you notice on your LII Nite, HDSN etc. show up only once on the entire screen... However their are many more Bids/Asks than what we see. For example your bid might be represented by NITE but if some one is higher up say at .0076 then that one will show because it closest to the best bid.. yours will show if NITE gets knocked off the bid and yours is the next highest bid he's representing.