On Tuesday, Tesla stock tumbled as much as 13% in pre-market trading.<br />The decline follows the surprise exclusion of Tesla from the S&P 500.<br />An important shareholder cutting its stake, and its announcement of a $5 billion share sale.<br />Tesla met the criteria to join the S&P 500. But the managers only added Etsy, Teradyne, and Catalent.<br />Other tech stocks such as Apple, Microsoft, and Facebook fell more than 2% on Tuesday as well.
