      A broker will occasionally bring to the floor orders representing boththe buy and sell side of a transaction with the intention of crossing them.This may happen when the broker's trading desk has received separate buyand sell orders in the same stock from two different customers. The NYSEprohibits, with certain exemptions, member firms from executing proprietaryand in-house trades in NYSE listed stocks off an organized exchange.14 Theprohibition, however, only applies to cases in which the firm representsboth sides of the off-market cross. If two separate member firms wish toexecute a trade with each other off an organized exchange, they may do so.