The S&P 500 had a strong year in 2025, with the top performers being SanDisk, Western Digital, and Micron in the AI hardware sector. SanDisk surged 567%, Western Digital gained 290%, and Micron saw a 247% increase. These companies benefited from the memory supercycle and high demand for AI infrastructure.

SanDisk, a flash storage solutions provider, capitalized on soaring prices due to a NAND flash memory shortage. Its fiscal year 2026 earnings doubled estimates, with revenue climbing 22.6% to $2.31 billion. Western Digital focused on enterprise HDDs for AI data centers, reporting a revenue increase of 27.4% to $2.82 billion.

Micron excelled in high-bandwidth memory, essential for NVIDIA’s GPUs, with a 56.7% revenue surge to $13.64 billion in fiscal year 2026. Analysts praised Micron’s performance and low P/E ratio. Despite hitting all-time highs, Micron remains a Buy based on 37 analyst opinions.

Read more at Yahoo Finance: The 3 Stocks That Crushed the S&P 500 in 2025