Celsius Holdings (NASDAQ: CELH) dropped 18% in a single trading session after reporting second-quarter financial results that disappointed Wall Street on both top and bottom lines. The company posted Q2 revenue of $817.9 million, representing 11% year-over-year growth, but the figure came in below consensus analyst estimates. The steepest concern for investors was the performance of the flagship Celsius brand itself, with sales falling almost 12% year over year during the quarter. Red Bull and Monster Beverage command unrivaled brand strength in the segment, making it difficult for any challenger to sustain long-term market share gains. With flagship brand sales declining and earnings under pressure, Celsius presents a high-risk proposition despite a valuation that superficially looks appealing to bargain hunters.