Every book shown in this gallery was being sold at the same time as its clone, in the same language and the same territory. (indiebooklauncher.com)
They may also require that all desired shares be bought or sold at the same time if the trade is to be executed, which is called an all or none order. (investopedia.com)
You don't have to be a brain surgeon to realize that everyone selling at the same time could cause problems. (mauldineconomics.com)