A Bull Market

A Bull Market is a stock market expression and it refers to a market that has prices of stocks on the rise by 20% or more. This usually happens when the economy is good. Hence the term a Bull market; a bull that thrusts its horns up into the air to attack. (Good way to remember)

A person who buys stocks in a Bull Market expects that the value of the stock will rise in a very short time. Once the value of the stock goes up he will sell the stock to make a profit on the transaction. What he is doing is raising the price of a stock by buying more shares. This creates an upward spiral.