MGM adds 67 cents to $10.23 and options volume is running 3X the average daily, with 47,000 calls and 12,000 puts traded so far. The top trade is a buyer of 10,000 January 2012 calls at the 17.5 line at $1.10 per contract at 13:55 on AMEX. Looks like they came back for more and bought another 10K at $1.10. More than 20,000 now traded. Sep 9, 10 and 11 calls are busy as well. Implied volatility in MGM is down 3.5 percent to 54 today after Soleil upgraded the stock to Buy from Hold.