Business and Personal Finance Dictionary

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 

• ALL OR NONE (AON)
  
  A stipulation applied to a buy or sell order which instructs the broker to fill the order completely or not to fill it at all. All or None orders are typically associated with large trades; investors use the restriction to prevent an order from being filled incrementally - a process which can result in payment of multiple commissions. An important distinction about AON orders is that if the trade cannot be executed it is not automatically cancelled - as it would be if the order was marked fill or kill (FOK).
  
  Back