I dont understand why everyone was trying to short CENX this afternoon. I understand it is up a lot in a 2 day period, but that is no reason to consider shorting a stock. This stock stayed near its highs all day, and never showed any weakness. Even if you think that your risk is small, go back to the basics. Do not short earning winners!!! You might get lucky once in a while with a trade, but you will become accustomed with this strategy and you will lose.