      Member firms are not allowed to combine the odd-lot orders given byseveral different customers into round-lot orders without getting customerapproval for "bunching" their order. At the same time, to limit thepossibility of abuse of the automated odd-lot trading system (whichautomatically fills the trade against the specialist's inventory), a brokerdealer entering multiple odd-lot orders for the same account in the samestock is required to aggregate the orders into round-lots, where possible,for execution in the round-lot auction market.