Most often, the dealer is a company that enters the market at their own expense (with money) and opens all transactions on their behalf. Private traders who don't have enough money to enter the market alone work with the company. This company brings together traders' requests, collects money from them, merge them with their own means and brings them to the market. Every private trader decides what tools to trade and when to open positions and then informs Dealing centers. However, sometimes a dealer is an individual person. In this case it is the employee of a similar company. This person processes and executes the requests and orders of a single trader, and they can also force a close the position (for example, at the end of the trading day).