I remember this happening in past. It was posted on ET. You never guess what the account holder posted.... "Why did they close my position, they could have let it go a bit further (on who's financial risk?) as it was clear the market would recover. My position go out of the loss later and so it was not necessary to close it. " ROFLMAO. The traders opens and closes the trades for his own financial risk. Nobody else has a permission to intervene. The only exception is an account that is wiped out.