 Shares of Virgin Galactic Holdings Inc. SPCE, -0.73 took a 17.3 dive in premarket trading Friday, after Truist analyst Michael Ciarmoli recommended investors sell in the wake of the space-tourism companys announcement that it was again delaying its first commercial launch and that it was selling more stock. Ciarmoli cut his rating to sell from hold and slashed his stock price target to 5 from 8. 