Elon Musk's Companies Have Been Tanking, And He's Lost $1.7 Billion (TSLA, SCTY)

Tesla and Solar City shares have been getting clobbered. Both stocks are also down from their highs over the past month -- Tesla by 14% and Solar City by 20%. Tesla topped out during the trading day at $291 on Sept. 4 and Solar City hit $76 on Sept. 12. Elon Musk is CEO of Tesla and Chairman of Solar City, so he's been shedding net worth. How much net worth? He owns over 33 million shares of Tesla and almost 21 million shares of Solar City. The declines from the peak trading values for those co...