On August 27, Sandisk (NASDAQ:SNDK) and Japan’s Kioxia said they would invest more than $31 billion in Japan through 2032, expanding memory chip production as the AI boom drains supply faster than the industry can replace it. Kioxia CEO Hiroo Ota and Sandisk CEO David Goeckeler met Japanese Prime Minister Sanae Takaichi the same day to discuss the plan, which depends on government support. For a stock that has already turned a corner few expected, the announcement raises a simple question: is this the start of a new cycle, or the top of an old one?
A Supercycle Finally Has Numbers
Part of the new spending lands at Kioxia’s Kitakami plant, where a facility carrying a 1.8 trillion yen ($11.30 billion) price tag will expand production of 10th-generation BiCS Flash, the memory technology Kioxia and Sandisk developed together. That expansion is chasing real demand. Sandisk’s data center revenue jumped 437% year over year to $5.2 billion in fiscal 2026, and in the fourth quarter alone it nearly doubled sequentially to $2.9 billion, more than twelve times what it was a year earlier. Edge products, the company’s largest segment, grew 195% to $12.2 billion as AI features spread into PCs and phones. Total revenue reached $20.2 billion, up 175%, and the company swung from a $1.6 billion net loss the prior fiscal year to $11.4 billion in net income this year.
What sets this cycle apart from memory booms is the contracts underneath it. Sandisk has signed New Business Model agreements with eight data center and edge customers, locking in bit volumes with pricing floors and ceilings for a weighted average of more than four years. Remaining performance obligations stood at $59.8 billion at quarter’s end and climbed to $91.1 billion once two post-quarter deals were added, putting roughly $93.9 billion in contracted revenue on the books as a floor rather than a hope. Management now points to mid-teens growth in both revenue and profit, with margins holding near 80%, betting these agreements smooth out the boom-bust pattern that has defined memory chips for decades.
The Math Cuts Both Ways
None of that erases the risk of owning a cyclical commodity chip business. Sandisk stock is up more than 500% in 2026 alone, and management just added $14 billion to its buyback authorization, bringing the remaining total to $15.5 billion, about 7% of the company’s market value. Buybacks only help shareholders when they happen below intrinsic value, and executives have committed to sending nearly all excess cash back to investors regardless of price, a stance closer to indiscriminate buying than disciplined capital allocation.
The supply side complicates things further. Sandisk and its rivals are already expanding capacity, and some competitors have shifted production between DRAM and NAND chips to chase whichever is scarcer. As that new capacity comes online later in the decade, prices are likely to fall and squeeze the margins driving today’s profits. Sandisk has only traded as an independent company since separating from Western Digital in February 2025, leaving little history to judge how it should be valued once earnings normalize. And the $31 billion Japan plan is not locked in either. It depends on government support that has not yet been secured, layering execution and political risk on top of a memory market that remains far more cyclical than logic-chip businesses like Taiwan Semiconductor Manufacturing (NYSE:TSM).
What The Smart Money Sees
128 hedge funds held Sandisk last quarter, up from 114 the quarter before, pointing to accumulating institutional conviction. Short interest sits at 8.24% of float, high enough to mark a real bear camp rather than routine hedging. As of August 28, the stock’s forward price-to-earnings ratio of 23.09 looks modest next to the growth Sandisk is guiding toward, and that gap is the tension worth watching. Funds are buying in while skeptics are shorting in size, and the multiple still assumes the boom outlasts whatever downturn comes next.
Two Stories, One Stock
Sandisk’s Japan investment is a bet that AI-driven memory demand outlasts the industry’s usual boom-bust rhythm, backed by tens of billions in contracted revenue and a technology partnership with Kioxia that predates this rally. But the same cyclicality that built this year’s gains has erased fortunes before, and a buyback plan indifferent to price does little to suggest management is thinking about the downside. Whether the bull case holds depends on those New Business Model contracts actually cushioning the next glut instead of merely delaying it.
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