Musk's SpaceX joins Nasdaq less than a month after IPO; shares dip 6%

Elon Musk-led SpaceX has joined the Nasdaq 100 index less than a month after its stock market debut, making it one of the fastest-ever additions to the index. Shares of the company fell over 6% in early trading. Its inclusion in the index is estimated to draw $4.3 billion in passive inflows, according to JPMorgan Chase.