Since making its public market debut, energy drink specialist Monster Beverage (MNST) has delivered blistering returns for its shareholders. However, this beast has been tamed in recent sessions. Since the beginning of January, MNST stock stumbled more than 11%. During the past 52 weeks, it gave up more than 12% of equity value. Should investors start worrying? On paper, the answer sounds like a “yes” – a resounding yes if we’re being honest. For one thing, the Barchart Technical Opinion indicator identifies MNST stock as an 88% Strong Sell. Key gauges of market dynamics across short, medium a…