Check out the companies making the biggest moves in premarket trading: Super Micro Computer — Shares tumbled 12% after the company announced it plans to raise $7 billion in equity-related deals to help cover the costs of hardware component purchases. Cracker Barrel — The Southern country-themed restaurant chain jumped nearly 11% after raising its full-year revenue and adjusted EBITDA guidance. Cracker Barrel also reported 29 cents per share on $797.4 million in revenue for its fiscal third quarter, topping expectations. Analysts polled by FactSet had expected a loss of 48 cents per share and revenue of $776.7 million. Nike — The footwear and apparel company slipped nearly 2%. RBC downgraded the stock to sector perform from outperform, saying Nike’s turnaround is “slower and narrower than we were anticipating.” Cava — The fast-casual restaurant chain was upgraded at UBS to buy from hold on its “compelling growth story.” The stock climbed 1%. — CNBC’s Lisa Kailai Han and Jordan Novet contributed reporting