Virgin Galactic's surging stock price is outpacing Tesla (SPCE)

Virgin Galactic has gained nearly 150% this year through Friday's close in a speedy rally that's outpaced automaker Tesla's torrid 91% rise in the same timeframe. 
Shares of the space tourism company surged as much as 35% to a new high in early trading on Tuesday. 
Adam Jonas of Morgan Stanley thinks the stock price could "use a breather." 
While he's constructive on Virgin Galactic, "the move in the stock price of late appears to be driven by forces beyond fundamental factors," h