Identifying the next set of growth stocks to buy can be a game-changer for Wall Street portfolios. Investors who buy a growth stock expect the company to grow its revenues and earnings significantly faster than an average industry peer or the overall market. For instance, the Vanguard Growth Index Fund ETF Shares (NYSEARCA:VUG) fund has returned over 38% since January. By comparison, the S&P 500 index has advanced shy of 29%. We should note that investing in growth stocks isn’t without risks. These companie ...