Recent content by rationalmind

They treat option order modifications like a cancellation and subsequent re-entry. Note though if the trade finally executes, you get (part of) the fee back as explained on their fee site.

When they talk about *mark*, they mean the mid-price. In earlier communication in the ticket, they refer to a "mark price of 0.143935 (based on the midpoint)" [between bid and ask]. Thanks everyone for their useful comments and for making me aware of arbitration and the formal IB complaints...

@comintel: I had asked them in why they based their calculation on the mid-point of this crazy bid-and-ask spread rather than the extremely liquid Hong Kong forward market, and all I got back was this: "Your concerns regarding our methodology are appreciated. However, it is not feasible to...

@DeeDeeTwo: I should have said: "/sometimes/ merely based on bid and ask spreads" (namely, whenever there is no sufficiently frequent trading in any of the instruments of the respective underlying). I admit that RMB futures were a large proportion of my portfolio (not because I'm crazy but...

I had read warnings on this board about IB's auto-liquidation policy before I opened and account with them, but hadn't taken them too seriously as I keep very conservative margins. Then the following happened: In order to benefit from the appreciation of the Chinese yuan, I opened RMB futures...