Tesla stock falls further after Elon Musk loses $15B in single day

Tesla’s stock price fell for the fourth straight day Tuesday after its massive Monday plunge wiped $15 billion off CEO Elon Musk’s net worth. The electric-car maker’s shares slipped 4.9 percent to $679.40 in premarket trading as of 8:03 a.m., putting it on track to start the day below the price where it entered the...