Markets tumble worldwide as Fed resets expectations: $400 billion wiped off SpaceX stock FortuneSpaceX drops more than 4% following $400 billion sell-off CNBCSpaceX stock plunged below its IPO-day close, shedding $400 billion in market value qz.comMorning Bid: SpaceXhaust ReutersSpaceX stock price drops again as post-IPO gains for retail investors get nearly wiped