https://www.reuters.com/article/us-tesla-musk-stocks/fears-for-musks-future-sink-tesla-shares-idUSKCN1M81DG >Shares of Tesla Inc dived 13 percent in early trading on Friday as Wall Street worried a lawsuit from U.S. regulators could force Chief Executive Elon Musk to step down and make it difficult for the loss-making carmaker to raise more capital.