Tesla continues to prove the naysayers wrong. The short sellers, too. The California-based electric vehicle automaker currently has a market valuation of $161 billion. That's more than Ford, General Motors, and Fiat Chrysler combined. Last month, Tesla's valuation was worth more than just Ford and GM combined. Tesla's shares have soared 40 percent over the past two days and are now trading at over $900 per share. A few business quarters ago, they were at around $180 per share. What's going on here?

Despite critics and short-sellers' best efforts, Tesla is thriving and its current market rally could potentially last for at least several more days. The big question now is when will it slow down or will the bubble completely burst? The share surge really began kicking into gear when Tesla posted its fourth-quarter 2019 profits, registering some $7.38 billion in revenue, beating analysts' estimates.