Several days now I've noticed that the P&L reported by IB's TWS is incorrect. I keep a journal in excel and I'm finding descepencies daily. Today I had a profit of $1200 and IB says I have a profit of $900. looking at the daily change it was up $600 so that doesn't explain it. I'm kind of stumped. I hope they're crediting my account with the real amount and not what TWS calculates. Anyone else see this? Update: I just chatted with customer service and they said to that TWS P&L is for informational purposes only and that I should check the statement. I assume the statement will be correct and that this is a bug in TWS. I'll update tomorrow after I see the statement.