Originally Posted by SteveBrown

Brokers don't like a trader to make high frequency trades with quick turnaround. That is, a trader who places many trades a day and closes each trade within a few minutes. That does not give the broker time to hedge the trades in the interbank market or to offset the trades against trades by other traders. However, if you are a successful trader who can win consistently on trades lasting hours or days, a good broker will have no problem with that. If you are really good, they will shadow your trades. That is, for every 100k lot you trade, they will take a 1000k position in the same direction, and close their trade when you do. Brokers like losers, but they love ace traders.