Tesla is joining the S&P 500. What Cramer and others see ahead for the electric auto maker

Shares of the electric auto maker jumped more than 9% in Tuesday trading after S&P Dow Jones Indices announced the company would be added to the major market index, a long-awaited move and a triumph for Tesla bulls.

Some market watchers cheered the validation from a top index provider, while others were laser-focused on how the move could shake up the S&P.