SanDisk returned to public markets in February 2025 after a decade under Western Digital ownership, launching with a market capitalization of $5 billion. Within a year, the company secured inclusion in the S&P 500 index and emerged as its top performer in 2025. Year-to-date through January 21, 2026, SanDisk’s market cap has climbed from $5 billion to $69 billion, driven by a more than 100% gain in its share count. Trading volume has surged to an average of 13 million shares per day, reflecting heightened investor interest in its recovery story and renewed growth prospects.

Global demand for high-speed solid-state memory has skyrocketed as data centers expand AI infrastructure. SanDisk management projects that total shipped memory capacity will more than double from the end of 2025 to the end of 2029. Data center revenue, which accounted for roughly 12% of total sales in the latest quarter, is expected to become the largest growth driver over the next three years. With supply unable to match this surging demand, memory prices have increased by over 25% in the past six months alone, boosting gross margins from 24% a year ago to 29.3% most recently.

Analyst forecasts for SanDisk’s adjusted earnings per share have been revised upward in four consecutive monthly reports, yet estimates vary by as much as 30% between the most bullish and bearish outlooks. Wall Street consensus calls for triple-digit annual earnings growth through mid-2029, but seasonal supply cycles could trigger a price downturn once new manufacturing capacity comes online. The volatility of memory pricing underscores the difficulty of forecasting future cash flows precisely, illustrating why investors must balance conviction in high-potential businesses with the risk of rapid margin swings.