Definitions for "At-the-Opening Order"
An order to buy or sell at the opening price. If not executed at the open- ing, it will be canceled.
An order that specifies it is to be executed at the opening of the market or of trading in that security or else it is to be canceled. The order does not have to be executed at the opening price.
An order which specifies execution at the opening of the market or else it is canceled.