The world's top electric vehicle (EV) stock has still worked out incredibly well for shareholders; it soared 1,170% during the past five years (as of Jan. 8). But with its current market cap exceeding $1.2 trillion, is Tesla a company you should be buying right now?

Shares of Tesla Inc. inched 0.15% higher to $394.94 Wednesday, on what proved to be an all-around mixed trading session for the stock market, with the Dow Jones Industrial Average rising 0.25% to 42,635.

Ten years ago, it was 2015 -- an eventful year. Nearly 200 countries agreed to reduce emissions and focus on renewable energy, Tom Brady and the New England Patriots were accused of underinflating footballs,