Not a technical issue but something that strikes me as extremely odd: I checked on IB's website and also chatted with the support desk over the phone, IB quotes at reference rate for HKD cash of 4.341% per annum. Their USD rate stands at 2.41% (and USD libor at 2.389%). The actual credit rate on idle HKD cash positions stand at around 3.55% per annum. That looks very high to me given HKD is pegged to the USD and the risk of a de-peg is relatively low at this point. I was confirmed that this is the correct rate. So far I invest most of my capital in 6m t-bills which I roll and earn around 2.x% on. If I held HKD instead the benefit would be a) the higher rate paid to me on idle cash, b) I could fully utilize the idle cash whereas with t-bills the hair cut is 1% or so. Not a big difference but still noticeable difference for larger account balances. No bank on this planet to my knowledge currently pays 3.5% on immediately available cash deposits (no lockups) on USD or USD pegged currencies. To be fair credit risk of large banks is lower than IB's credit risk but still... Thoughts? Opinions? Anything I am missing?