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A series of manipulative transactions on a security intended to create an impression of a high trading volume, suggesting interest in assets or securities that may not actually be there. This tends to increase the share price, which in turn encourages other investors to buy the security. When other investors become interested, the manipulating traders dump the security at an artificially high price. See also: Churning, Round-Trip Trading.
Manipulative trading among a small group of individuals or institutions that is intended to give the impression of heavy volume. As outsiders see the unusual trading activity and are drawn into the chain, the traders who started the daisy chain then sell their positions, leaving the new investors with overpriced securities.