A transaction (trade) that is executed on the floor of an exchange by just one broker who simultaneously acts both as buyer and seller. A broker would be allowed to cross a transaction if he has matching buy and sell orders on the same contract and at the same price from two different customer accounts. However, he is not permitted to cross the transaction unless he has declared the bid and offer price publicly and no other broker has taken it up.

Of course, a cross trade must be executed at market price.

This trade is also referred to simply as a cross.