manipulation
manipulation. Securities. The illegal practice of raising or lowering a security’s price by creating the appearance of active trading. • Manipulation is prohibited by § 10(b) of the Securities Exchange Act of 1934. 15 USCA § 78j(b). — Also termed market manipulation; stock manipulation. [Cases: Securities Regulation 60.25. C.J.S. Securities Regulation §§ 214, 226–227.]