Originally posted by def
braindonor,
If you take excessive risk and the market gaps against you, the firm does not want to be caught in the position of having to cover client margin. It is a safety net for all. Given the margin rate on futures, I guess it is the belief that there is ample leverage already in the contract.
Def,
I almost always agree with what you reply to this list, including IB's reservation to implement DDE link to Excel. But not this one, the daytrading margin policy.
IB's proud of its complete computerization. Auto liquidation without margin call. "Market gaps" you mentioned above is a real issue, to the overnight or over-session positions, but not so much an issue to the daytrading positions. For the current margin rate, it's 86 pts for ES, 272.5 pts for NQ, 1140 pts for Hang Seng Index. If 50% daytrading margin rate adopted, it's 43, 136, and 570 pts respectively. And even if 25% of full margin to maintain a daytrading position (you may choose 35% if that makes you more comfortable), it's still 21.5, 68, 285 pts for IB to liquidate the position. Not enough? Notice that this range is completely for IB to offset a position once the threshold gets hit. Even a market panic/shock will allow minutes to go this far. Remember that we are talking about intraday/intrasession scenario. The real challenge is how robust IB's platform is to execute auto-liquidation. And we are talking about the most liquid contarcts, ES, NQ, Hang Seng Index, DAX, Euro STOXX 50, CAC 40, and FTSE 100. No a/c/e Dow Jones mentioned. As to if the leverage is too excessive, it's a two-edged sword that's up to the traders. Reasonable money management is essential to survive, but we want the sword there once we need it.
And by definition, all daytrading positions must be squared out before a certain point before the end of the day or the session (HK trades two sessions a day, currently). Of course it's fully reasonable to exclude any pre-market, "night session", or illiquid markets/contracts for daytrading policy adoption.
With the coming of multi-currency futures account (Def, when will it be availabe?), the daytrading margin policy is even more essential because I do doubt the SPAN System or its like mechanism will cover or be adopted across the entire nations/instruments that IB allows for trading. As you know we have about three hours overlaped for active ES, NQ, DAX, Euro STOXX 50, CAC 40, and Footsie trading.