excessive trading
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Churn
To make both buy and sell orders through different brokers, usually in large quantities, to create the impression of increased interest in a security and thereby raise its price. An investor churns if he/she has a long position on the security and wishes to sell it at an artificially high price. Churning is a form of manipulation, and is illegal under the Securities Exchange Act of 1934. See also: Fix.
excessive trading
The act of churning.