Market Manipulation

Creating false prices or false impressions of trading activity.

What is Market Manipulation?

Prohibited practices include wash trades (buying and selling the same security with no change in ownership), matched orders (colluding to trade back and forth), marking the close (trades timed to move the closing price), pump-and-dump schemes, and spreading false rumors to move a price.

Market Manipulation: a worked example

Two traders repeatedly trading a thin stock between themselves to make it look active are placing matched orders.

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