the drop in tesla stock has cost investors and ceo elon musk a huge amount of money as the end of the year approaches investors—and maybe even musk—should consider how it happened on monday tesla ticker tsla stock closed at 16787 down 68 at the lowest close since nov 20 2020 when shares closed at 16320 according to dow jones market data shares are off 58 from their 52week high of 40267 set back in january