Tesla CEO Elon Musk talks to media as he arrives to go to the development website of the long run US electrical automotive big Tesla, on September 03, 2020 in Gruenheide close to Berlin.

Odd Andersen | AFP | Getty Photographs

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For buyers amazed at Tesla‘s 20% rally this week alone after its long-anticipated S&P 500 inclusion, this is a principle about why the inventory simply retains going larger.