When a sector’s revenue rises nearly fivefold in a year and its stocks fall more than 25% in a week, somebody has the math wrong. The question consuming every memory desk right now is which side of that equation gives way first.
The Situation Investors Are Staring At
Shares of the three biggest memory makers fell between 18.7% and 26.1% from the October 29 close to the November 6 close, while Counterpoint Research reported DRAM revenue up 369% year on year to nearly $200 billion and senior analyst Jeongku Choi called it “a pricing super-cycle, not yet a volume cycle.” Let that sit for a moment. The industry’s revenue approaches five times its level a year ago. The stocks that own that revenue just got cut by a quarter.
Micron’s forward price-to-earnings ratio stands at 3.97 as of November 9. That compares with 12.78 at Micron’s fiscal 2024 year-end and 10.15 a year later. There is no recent precedent for this combination of revenue velocity and multiple compression in a single name.
Why the Bears Are Not Wrong
The selloff was not random. Memory stocks extended losses as investors reduced exposure to AI-linked semiconductor companies following the US midterm elections, in a broader rotation away from semiconductor and AI supply-chain stocks. Political risk is the surface explanation. The deeper one is cyclicality.
The compelling reason not to view the low valuation as a buying opportunity is that memory stocks are always cheapest at the peak. In prior cycles, Micron has traded around the mid-single digits on forward earnings near cycle highs, and those moments have often preceded sharp drawdowns. At roughly five times forward earnings, Micron and SanDisk are not being valued like companies whose current economics persist. They are being valued as if earnings estimates are close to a high-water mark and the next phase of the cycle brings a substantial decline. The market, in this reading, is not being irrational. It is pricing the same thing it always prices at cycle peaks: the eventual mean reversion.
Micron faces additional scrutiny after its share of the global DRAM market fell to 21% in the third quarter, down from 26% a year earlier, according to Counterpoint Research. Samsung held 38%; SK hynix gained share sequentially. Micron is winning an industry cycle while losing competitive ground within it.
The share-loss story at Micron makes the contrast with its NAND-focused peer even sharper. SanDisk cleared every earnings hurdle and announced a stock split, yet its shares still fell on the day results landed.
Why the Bulls Have a Case That Is Harder to Dismiss Than Usual
Counterpoint’s Choi described a market where “bit shipments rose only about 4% this quarter, yet DRAM revenue reached nearly $200 billion, close to 5x a year ago,” because “AI has turned memory from a commodity into a valuable scarce resource, and buyers are now competing for supply rather than negotiating on price.” That is structurally different from past cycles, where demand pulled back as prices rose.
The supply-demand argument cuts both ways, and the data have not always told a clean story. Memory sales volatility after a record month has already tested investors’ conviction in the structural-cycle thesis.
The supply side reinforces this. New fabs take 12 to 24 months to reach peak output, and some forecasters do not expect DRAM supply and demand to balance until 2028. Micron now expects conditions to be “much tighter in calendar 2027 and 2028 than they were in 2026,” Samsung says the shortage lasts through 2028, and SK hynix expects demand to exceed supply beyond 2030. That is not the language of companies approaching a cycle cliff. Micron estimates its 26 multiyear customer deals cover over 35% of its revenue through 2030.
JPMorgan has argued the market is already pricing a memory downcycle as early as the first half of 2027, while near-term earnings remain cushioned by long-term supply deals and customer prepayments. If JPMorgan is right that the market is front-running a 2027 downturn, the question is whether that downturn actually arrives on schedule, or whether the structural supply constraint pushes peak earnings further out than history suggests.
What Investors Are Missing
The debate is framed as peak earnings versus structural cycle. The overlooked dimension is SanDisk. SanDisk reported fiscal first-quarter revenue of $11.0 billion, up 23% sequentially. Stockholders of record as of today’s close receive seven additional shares for each share held, with split-adjusted trading beginning November 20. An 8-for-1 split at current prices creates a retail price point around $104 per share. That alone widens the buyer pool at precisely the moment sentiment is most negative. Samsung rose 2.9% and SK hynix rose 4.7% in Asian trade this morning, though a basket of AI memory stocks compiled by one bank remains down 51% from its June peak.
Stocks to Watch
Micron (MU): The valuation is the story. At 3.97 times forward earnings, the market is pricing a cycle collapse that management’s own guidance and customer contracts do not support. The risk is that the market is right and management is wrong, as it has been before.
SanDisk (SNDK): Fiscal first-quarter revenue of $11.0 billion, a split-adjusted price entering retail range on November 20, and data center exposure that management has positioned as a key growth pillar. The selloff has pulled it to roughly 4.9 times forward earnings. The split is a catalyst, not a fundamental, but catalysts matter when sentiment is at an extreme.
SK hynix (SKHY): SK hynix is widely viewed as the leader in HBM memory. At around $162 a share, SK hynix’s Nasdaq-listed stock costs about 4 to 5 times its expected 2027 earnings. The company gaining share in the most profitable segment of DRAM while trading at a trough multiple is the clearest expression of the bull case.
Samsung Electronics: The least expensive of the three on most metrics, with 38% DRAM revenue share and an operating profit that went from $9 billion to roughly $80 billion year over year. Foreign investors have sold for seven consecutive sessions. Korean institutional buyers stepped in this morning.
