The beverage maker's shares plunged last month. Did long-term investors get hosed?The stock of beverage company Celsius Holdings (CELH 0.25%) has taken investors on a roller-coaster ride recently. The energy drink maker's wild ride was capped by a 30% plunge during the first week of November after it reported a $61 million net loss for Q3.However, one bad week doesn't define an investment. How has Celsius' stock done for long-term investors?One-year returns: A smash hitIt's hard to believe, but even with th ...