Yeah, it's stupidly and needlessly complicated.
You underestimate how much of my portfolio is in options already
This is pretty interesting, but if margin requirements at IB for regular stock are this complicated, I don't even wanna know how complicated they are for short option positions.
Anyway, this is quite OT for this thread, and a helpful member sent me a PM with some info, as well as a suggestion to talk to IB on the phone instead of the live chat I tried. So I think I'll be able to figure the rest out. Besides, as it's looking right now, I'll probably end up going with a 7-8% loan for the majority, because IB won't let me use my options as collateral for a margin loan.
So thanks everyone who helped out!
Frank- Please share what you find out. I agree with you that the IB margin information is needlessly confusing. Way too many terms and not enough information on how it works. Thanks.