STX is trading 2.3% up at $990.39, extending a multi-day rebound. - The momentum is driven by strong fiscal Q3 2026 results, with EPS of $4.10 beating estimates and revenue up 44.1% year over year. - The company also provided optimistic Q4 2026 guidance, benefited from recent analyst target increases, and sustained enthusiasm for its HAMR drives amidst increasing AI data-center storage demand. - Shares are further supported by broader strength in the technology sector.