SanDisk’s Supply-Driven Surge: A Deep Dive into the NAND Shortage Rally

Since becoming an independent entity following its separation from Western Digital in February 2025, SanDisk has emerged as one of the standout performers within the S&P 500. This success is not fueled by transient market excitement but by a tangible and persistent industry-wide constraint: global NAND flash supply is failing to keep pace with skyrocketing demand, primarily from artificial intelligence (AI) data centers.

Structural Shortages Define the Outlook

Market analysts widely view the current NAND flash supply crunch as a structural, not cyclical, issue. AI infrastructure deployed by major hyperscalers is consuming memory at a rate that outstrips the entire industry’s production capabilities. SanDisk’s own statements highlight a growing pipeline of multi-year supply commitments extending through 2027 and 2028.

In response, the company has secured a crucial part of its manufacturing base by extending its Yokkaichi joint venture with Kioxia through the end of 2034. Notably, management is exercising deliberate restraint in capacity expansion. Despite overwhelming demand, SanDisk plans only a moderate bit growth rate in the mid-to-high teens percentage range, a strategy aimed at preventing price erosion from potential overproduction.

Quarterly Performance Exceeds All Forecasts

The financial results for the second quarter of fiscal year 2026 powerfully illustrate the favorable market dynamics. SanDisk reported revenue of $3.025 billion, a 61% year-over-year increase that also surpassed analyst estimates by approximately 12.5%. The data center segment was a particular highlight, surging 76% to $440 million.

Profitability metrics were even more striking. Non-GAAP gross margin reached 51.1%, significantly above the company’s own guidance range of 41% to 43%. Adjusted earnings per share came in at $6.20, nearly double the consensus estimate of $3.62. The company has acknowledged that with capacity fully utilized, it now faces strategic decisions about which customers to prioritize for supply.

Should investors sell immediately? Or is it worth buying SANDISK?

This pricing power is reflected in industry forecasts. According to TrendForce, NAND contract prices are projected to rise by 85% to 90% quarter-over-quarter in Q1 2026, a trend that directly explains SanDisk’s exceptional margin expansion.

Acknowledging the Risks and Market Nuances

The bullish narrative is not without its caveats. A new Chinese approval process for NAND exports, implemented in January 2026, has increased compliance complexity. A further escalation in the U.S.-China semiconductor dispute could potentially restrict access to the substantial Chinese consumer market.

Market mechanics also introduce volatility. The launch of a leveraged exchange-traded fund, the Tradr 2X Long SNDK Daily ETF, has amplified price movements. After its debut on January 27, 2026, the ETF gathered $650 million in assets within 24 days, quickly becoming the fifth-largest single-stock ETF in the United States.

Furthermore, Western Digital completely divested its remaining stake in February via a secondary placement of approximately 5.8 million shares at $545 per share. The market has absorbed this supply overhang effectively, with SanDisk’s share price continuing its upward trajectory.

Valuation and the Path Forward

The current consensus price target among 20 covering analysts stands at $761. With shares trading around $632, this suggests further potential upside. The upcoming third-quarter results will serve as a key validation point. Management has issued a non-GAAP EPS guidance of up to $14, a figure that will test whether the current valuation is fundamentally justified or if expectations have already run too far ahead.