SanDisk (SNDK) shares closed more than 25% higher on Tuesday after the Nasdaq-listed firm rebranded its internal solid-state drive lineup as “SanDisk Optimus™.” The rally pushed SNDK’s short-term relative strength index (9-day) to 85, signaling overbought conditions that often precede a sharp pullback. More News from Barchart Including Tuesday’s surge, SanDisk stock is trading more than 10x above its 52-week low. www.barchart.com NAND Price Hikes to Drive SanDisk Stock Higher According to Heidi Arki ...