Tesla’s stock continued its weeks-long nosedive on Friday as Elon Musk’s electric vehicle maker erased $700 billion in gains that had accumulated since the US presidential election.Tesla’s shares had dropped by as much as 4.6$700 billion surge they had enjoyed post-election.Tesla’s stock has fallen by more than 28% in the last month. Since Jan. 1, the stock is down nearly 32%. 3 The “Trump bump” that ...