Sirius Satellite (SIRI) with relative strength and high call volume today. Shares are up 7 cents to $1.85 and options volume on the satellite radio operator is 31,000 calls and 1,700 puts. The top trade is a 951-lot of Jan $2 call at the 8-cent asking price. 9,706 traded. Dec and Jan13 $2 calls are the next most actives. Looks like upside call buyers dominating the flow in SIRI today and implied volatility in the options on the stock has eased 2.5 percent to 51.5. Only headline on the stock today is news that Ozzy is launching his own Sirius channel.