Astronaut costumes. No-shows. Soon-to-be very rich people . I spent Friday morning outside the Nasdaq's headquarters in Times Square, when SpaceX debuted on the exchange under the ticker SPCX. On Thursday night, the company was priced at $135 per share, as anticipated. It began trading at $150 per share and surged as much as 30% in early trades, before closing at $160.95, a gain of 19%. SpaceX didn't have any official programming outside, but Midtown Manhattan was swarmed, both with Musk