The illegal practice in which traders buy and sell a specific security among...

Illegal practice by traders who manipulate the market by buying and selling a security to create the illusion of high trading activity and to attract other traders who may push up the price.

1. May refer to a situation in which consecutive or frequent trading results in a security's repeated appearance on the ticker tape. Activity is usually attributed to special investor interest. 2. May refer to an illegal practice in which a particular security is bought and sold amongst manipulators in order to create the appearance of trading activity and thus attract the attention of unwary investors. The artificial trading is reported on the consolidated tape.