Elon Musk's rocket company made its debut on the Nasdaq 100 index on Tuesday, weeks after raising $85.7 billion in the largest IPO in history.

SpaceX joins the index just 15 days after its stock market debut on June 12

SpaceX is set to officially join the Nasdaq 100 index on Tuesday, giving investors new exposure to the stock while triggering billions of dollars in automatic purchases by index…