Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

What is the difference between a 'trader' and a 'stockbroker'?
The traditional role of a stockbroker is to arrange for the buying and selling of stock by finding buyers and sellers at an agreed upon price.  The broker does not purchase the stock for himself but merely arranges for the stock to be traded. A trader is one who purchases stock with the hope of selling it for a gain.  The trader will use a broker to help with the purchase and sale of a stock.