off-floor order means: This is used to list equity securities. 1. Order to purchase or sell security from the exchange floor; orders placed by customers. These orders are distinct from those placed by floor traders for their accounts. An off-floor order must be executed according to exchange rules Before orders are placed on the floor. Upstairs order. The opposite of the on-floor order. 2 orders are not dealt with on the floor, but upstairs. (in Stock Market Dictionary)