Jeff Reeves’s Strength in Numbers: Now that Tesla is joining the S&P 500, you might want to sell

S&P Dow Jones Indices has at long last admitted Tesla to the adult table along with other iconic American stocks, announcing this week it will place the electric vehicle and battery giant in its flagship index of the top 500 U.S. corporations come December.

It hasn’t been an easy road for Tesla TSLA. In fact, the stock sold off sharply in…