Virgin Orbit Is the Next Space Unicorn Stock

Everyone knows what a unicorn is, but what's a unicorn stock? A unicorn stock is a private company -- one that has not yet gone through the IPO process and is not traded on a stock exchange -- that is so popular that it has already achieved an implied valuation of $1 billion or more, even without public dollars. According to market researcher CB Insights, nearly 500 privately owned, $1 billion-valued companies now roam the Earth, in industries ranging from artificial intelligence to fintech to travel.