Despite a highly competitive energy drink industry (including multiple entries from high-growth upstarts like Celsius Holdings (NASDAQ: CELH) over the years), as well as multiple economic downturns, Monster keeps grinding higher. After nearly doubling in price over the last five years, shares of top energy drink company Monster Beverage (NASDAQ: MNST) are getting ready to split. Paired with inflationary pressures, Monster's profit margins (both GAAP net income and free cash flow) have fallen dramatically over the last two years.