While we have not received news on subscribers or company subscriber guidance as yet, we did see an announcement that Karmazin is speaking at Liberty next week.  SiriusXM is up nicely on big volume.   At mid day over 50 million shares have been traded.  Couple of things to watch.  This move up is based on speculation.  While it is great to watch, the speculation needs to be solidified to hold higher levels.  Two strategies here.  If you are an active trader watch for a top by looking at what happens to volume through the balance of the day.  If you are longer term, holding is quite fine, just understand the dynamics at play.