In a January research note, J.P. Morgan analyst Harlan Sur set a target price of $235 for SanDisk, implying a potential 53% decline from current levels. Sur warns that the current tightness in NAND flash supply, which has powered SanDisk’s recent rally, is likely to reverse into a pronounced glut once new fabs ramp up production in late 2026. With SanDisk trading at roughly 205 times forward earnings, the analyst argues that even strong short-term earnings growth is priced in, leaving limited upside and substantial downside risk for investors holding large positions.

SanDisk’s vertical integration and partnership with Japanese supplier Kioxia have delivered cost efficiencies and market-leading gross margins of around 29%. However, industry capacity additions scheduled for 2027–2028 threaten to overshoot demand. Wall Street consensus projects SanDisk’s adjusted earnings to grow at 79% annually through the fiscal year ending June 2029—an impressive pace but one that, in J.P. Morgan’s view, will coincide with a steep slide in NAND pricing once excess wafer capacity comes online, pressuring both top-line growth and margin expansion.

On the demand side, SanDisk has benefited from unprecedented AI infrastructure build-out. Management forecasts that the memory shortage will persist through the current fiscal year, underpinning a near‐term surge in SSD shipments for data-center checkpointing and hyperscale storage. During the first half of 2025, SanDisk gained a full percentage point of global market share, and the company secured testing agreements with two hyperscalers, with a third scheduled to begin trials in 2026. These contracts support consensus estimates of triple-digit earnings growth in the coming quarters, with fiscal 2026 revenue projected to exceed $10 billion—a 42% year-over-year increase.

Despite robust growth drivers, SanDisk’s current valuation places it among the most expensive names in the storage sector. Trading at over 200 times 2026 earnings and more than five times its five-year average P/E, the stock offers limited margin of safety against a market reversal. Analysts recommend that investors looking to manage risk should consider trimming positions or waiting for a correction, particularly as consensus forecasts do not fully account for the timing and scale of upcoming capacity expansions that could trigger a steep drawdown in NAND pricing.