What is Market Manipulation? by Amit Sabhadiya What is Market Manipulation? What is defined as market manipulation? Market manipulation is when someone artificially affects the supply or demand for a security (for example, causing stock prices to rise or to fall dramatically). Related Posts:What are the Laws of Supply and Demand?What is Demand Theory?What is a Supply Chain?What is Supply?What is Aggregate Supply and Demand?What is Demand?What is Derived Demand?What is Inelastic Demand?What is Money Supply?See also : What is Delivered Duty Paid (DDP)?