With a float the size of the one SIRI is sporting, I seriously doubt its part of the game that we see where the market seeks out low float stocks and jams them thru the roof. SIRI is a different beast all together....
Its amazing the SEC hasnt looked into the parties involved in pushing some of these junkard stocks higher.. Those arent retail traders making stocks double/triple in 1 hour.. but heck- why on this earth would the SEC do anything given its not the little guy in there whos behind the scam ; )