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,

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.

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?