Tesla's market cap tops the 9 largest automakers combined — Experts disagree about if that can last

Key Points
  • Tesla's market cap has increased by more than $500 billion in 2020, and is now worth as much as the combined market cap of the nine largest car companies globally.
  • Despite the meteoric growth for Tesla's market value this year, many shareholders and fans of Elon Musk believe there's even more upside for the electric vehicle maker heading into 2021.
  • Some Wall Street analysts are issuing warnings on Tesla, however, signaling that shares in the company may be headed for a decline once it is added to the S&P 500 index on December 21, 2020.