SanDisk $SNDK Surges 34%: NAND Market Headed to $500B by 2027

$SNDK just had one of the best weeks in the memory sector in years, and if JP Morgan is right, retail traders are still early to the party.

SanDisk surged over 34% in a single week following a blowout Investor Day that spooked the bears and converted at least a few skeptics on the Street. Management laid out a model targeting mid-to-high teen revenue growth with an 80% gross margin floor through 2030, backed by what might be the most underappreciated number in the whole AI infrastructure trade: $94 billion in signed customer contracts. That is not a projection. That is locked revenue. JP Morgan responded by resuming coverage at overweight and projecting the NAND flash memory market to explode from roughly $70 billion today to $500 billion by next year, driven almost entirely by AI inference workloads that are far more memory-intensive than anyone modeled two years ago.

The ripple effects hit the whole memory complex. $MU (Micron), $WDC (Western Digital), and SK Hynix all caught bids as investors repriced the sector's forward multiples. The bull thesis here is clean: AI inference at scale is not a compute problem anymore, it is a memory bandwidth problem. Every additional ChatGPT query, every AI coding assistant call, every image generation request needs NAND throughput. SanDisk has the contracts to prove the demand is real, not speculative.

The bear case deserves a mention too. NAND is notoriously cyclical. The last time analysts got excited about a memory supercycle, the sector halved before it doubled. SanDisk's gross margin floor depends on those customer contracts actually converting, and any demand slowdown from enterprise AI spending (see: weak retail sales print, softening consumer sentiment) could compress pricing faster than that 80% floor implies. Execution risk on a 2030 margin target is, charitably, significant.

Still, sentiment on YouTube finance channels this week is firmly in the memory bull camp, with CNBC spending considerable airtime on SanDisk's investor day specifics and the broader memory sector rotation. Reddit's own $RDDT is getting a separate boost from its surprise S&P 500 inclusion, which speaks to how broad the momentum trade has gotten in names adjacent to AI infrastructure.

At $500 billion in projected market size against a $70 billion baseline, the memory sector is quietly pricing in the most dramatic demand ramp in semiconductor history. The question is whether that ramp is already in the stock price after a 34% move, or whether this is just the appetizer.