wtf, the cost (0.45) is the risk charged by the mkt. This was not a case of closing ITM by a few cents over the short-strike. My God, the only thing you ppl are good at is beating a dead horse.
They are talking about 45 cents on a 400 stock that moves like 40 vol.
The stock can move by 45 cents between 3:59:58 and 3:59:59