A few weeks ago, I day traded MSFT and held LLY for a few days. Since then, my broker (IB) statement has shown "Dividend Accrual" for these two, payable on Dec 10. I literally owned them for a few days, and I am being assessed dividends equivalent to the number of shares times the payout. I'll be out a few hundred bucks in this case, because I shorted LLY and lost, and now owe dividends. A few hundred bucks is no big deal in the big picture. But it *is* a big deal if I have to somehow factor potential dividends into my risk/reward calculations every time I want to put on a short term trade. I've been day/swing trading for years, and I've never seen this. Is this sort of thing common? Is it because it is the end of the year? Is this an IB thing? What is going on here?