Then, what's the carrying cost per day for options (on futures)? Is there any approximation for deriving a simple calculation?
@Overnight @Robert Morse @algofy we discussed IB will charge this fee only for FX, but IB charged me for ES position.
I believe that the "overnight fee" is the same as the "carrying fee", and is applicable because the OP is using the tiered commission structure. From the following, it seems that there is no "overnight position fee" with the fixed commission structure: "Our transparent Fixed pricing for futures in US markets includes our low broker commission plus exchange, regulatory and clearing fees. You are not charged a carrying fee for positions held overnight." I've been using IB's fixed pricing forever, and never saw any kind of "overnight" or "carrying" fees.