Does anyone else notice that their IB account value intraday shows an incorrect (usually inflated) value? I have found consistently that my intraday account value is biased higher than the correct value if determined based on the mid-prices of all the options positions. When IB determines the end-of-day account value (around midnight each night) this bias is corrected and the account value is fairly accurate. I guess it really doesn't/shouldn't make a difference to me what the IB intraday account value is, but it's been annoying me lately. I think I'm hitting thresholds in my returns and account growth but am off by about 1%.