Dear Traders, Today we experienced the worst thing it could happen to a trader : CLOSE OUT YOUR POSITION IMMEDIATELY OR I WILL DO IT NOW FOR YOU. We have been trading exclusively the Cac future (we live in France. I am, Italian and my wife is French) for over four months without causing the slightest problem to Interactive Brokers. Tonight, at about 18:00 we decided to open a speculative position edging a short of 30 contracts at 4338 without having all the money available in our account. Our position was in the right direction since the US indices were sliding as well as the Cac future which closed at 4305 at 22:00. We could have bought our short at that time or before the closing below our short point. But, guess what: IB phoned twice and THREATENED US. We were forced to close the position at 4343 with a noticeable loss because IB was waiting on the phone for us to do so. As a result, we decided to close our account immediately after that accident simply because we cannot trust a broker who goes against us. We have been edging our positions before this accident and IB never complained. Today, they decided to do it all of a sudden and without notice. My question is the following: although we know that we cannot hold a position with the correct maintenance amount in our account, is it fair that IB allows anyone to increase his/her future limits without having the starting maintenance margin? Is it fair, legal and respectful vis-Ã -vis their clients? I doubt so and I would like to submit a complaint to the SEC and COB (Commission des operations boursieres, here in France). I would appreciate your views on this matter. One thing is certain : IB will never have us again as their clients.