Micron

Micron (NASDAQ: MU) makes DRAM and NAND — the memory a computer holds data in — and it is the one thing its scale peers are not: American. SK Hynix and Samsung, the other two names that matter, are Korean. So Micron is an accessible way onto the AI buildout’s newest constraint: memory. See the economics of AI compute for why HBM became the crunch, and the AI-capex loop for the spending it feeds.

The number that named the moment: Micron reported third-quarter revenue up 346% to $41.46 billion, above the $35.84 billion estimate — a single quarter larger than all of fiscal 2025 ($37.38 billion). In May 2026 the stock crossed a $1 trillion market value for the first time, weeks after it had passed $700 billion. DeadRisk files it second-order: a name the AI trade reaches for when an input turns scarce.

Update, 27 October 2026. On 30 September Micron reported fiscal 2026, the year to 3 September: revenue of $133.19 billion against $37.38 billion the year before, and $54.23 billion in the fourth quarter alone. Gross margin in its core data-centre unit was 90%, against 41% a year earlier. On the call, chief executive Sanjay Mehrotra said demand would exceed supply in 2027 and 2028: “We see greater tightness in the industry in 2027 and in 2028 versus 2026.” He added: “We do not have line of sight to when supply and demand will return to balance.” On our closes the stock rose 3.0% the next day, from $1,065.11 to $1,097.39.

Update, 30 October 2026: the other end of the price. On 29 October Intel put a number on what memory prices cost in volume. On its call it put PC unit sales down about 12% in 2026, more than 20% in the second half, and planned for about 10% fewer in 2027; it expects no lasting PC recovery until memory supply improves and prices ease. Its 10-Q says client demand fell “due to industry-wide impacts from higher component prices, particularly memory,” and that Intel’s ability to work around memory constraints “is very limited.” Four weeks earlier Mehrotra had said customers would pay “much higher prices.” The two statements are one fact seen from each end: the price Micron is paid is the volume PC makers lose. HP said in February that memory was 35% of its PC bill of materials, up from 15–18% a quarter earlier; the rest of the trail is in The PC pays the memory bill. Intel traded about 30% lower on 30 October and MU about 6% lower, with most chip stocks.

Memory is a cyclical business. TEXXR’s archive carries Micron back to 2008, and its coverage runs in a sawtooth: quiet years broken by a spike, then a collapse. What is happening now reads as a break from that cycle, not another turn of it. AI’s appetite for high-bandwidth memory made the scarce part scarce, and the pricing power flipped to the makers: the Wall Street Journal ran the line that AI had made memory chips more valuable than oil, with the makers using their newfound leverage to lock in long-term agreements.

Micron is spending as if it believes the break. It raised its US capital commitment to $250 billion through 2035, adding $50 billion; it broke ground on a ~$9.3 billion expansion of its Hiroshima plant. Its constraint has moved from demand to its own capacity to build — the same shape The AI Capex Supercycle tracks one layer up.

But the tape has not made up its mind. Micron and Sandisk led a sharp selloff on June 23, each down more than 13%; in July, memory and storage makers fell sharply again.

Supply is coming: SK Hynix’s US listing sought to raise ~$29.4 billion, and memory vendors say China’s CXMT prices DDR5 as they do. And politics is now inside the price: the chip group SEMI, Micron and Samsung among it, warned Washington against moves that would distort the memory market. New supply and policy are what end memory cycles.

Update, 27 October 2026: the funds. In the 30 June 13F filings of the eighteen AI-heavy funds we read, Micron was the largest net addition of the second quarter: $8.96 billion, valued at the quarter’s end. Situational Awareness reported 4,828,786 Micron shares, worth $5.57 billion, at 30 June; it filed on 14 August. A 13F gives holdings on the last day of the quarter, not when trades were made, and a book can change before it is filed. On our closes Micron fell 24.0% from 30 June to 23 October, from $1,154.29 to $877.55.

323 hyperedges touched Micron in July, and their shape is the finding. Micron’s older record was product — NAND densities, SSD launches. The 2026 cluster is capacity and policy: the $250 billion US commitment, the Hiroshima groundbreaking and its HBM from summer 2028, and the SEMI warning. A memory company’s edges now read like a utility’s.

Update, 27 October 2026. The graph now holds 348 Micron edges, 25 of them logged since the July count. Only one is first dated in August: Counterpoint’s count of YMTC passing Micron in NAND shipments. A union at the Taoyuan site secured authorisation to strike over bonuses in early October. Reuters reported an agreement at Taichung on 21 October; the next day a Micron union staged Taiwan’s first chip strike, by Nikkei’s account. Micron sued YMTC in the US, accusing it of hiring away key engineers and then suing Micron with their patents. Reuters, citing a Seoul newspaper, reported that Nvidia asked all three memory makers to make base dies for its custom HBM on TSMC’s 3nm process; TEXXR marks it rumored. Mehrotra did say, The Register reported, that Micron is working with Nvidia on “the industry’s first custom HBM4E implementation, NV-HBM.”

Positioning: how much of MU is sold short, on the record brokers file twice a month. It lags by design — read it as where the crowd stood, not where it stands.

Signals in the coverage and filing record, not trade ideas:

• Whether the long-term contracts hold. Memory prices have fallen back in every past cycle; the contracts are the test of whether this one differs. Added 27 October: the 10-K, filed 9 October, gives the terms. The agreements are take-or-pay over several years, most with a floor and a ceiling on price. Customers paid $12.75 billion of deposits in fiscal 2026, nearly all due back between 2029 and 2031, and $7 billion of letters of credit stand behind them. Remaining performance obligations were about $134 billion, a quarter of it due within a year; a year earlier they were not material. Micron expects even floor prices to yield gross margins “meaningfully above our peak quarterly margins in any past cycle.” A customer that misses its minimum may lose its deposit, which would be the first filed sign of a failed contract.
• The HBM ramp lag. Micron says the expanded Hiroshima plant ships from summer 2028. If demand outlasts the wait, the cycle holds; if supply arrives late into weak demand, it breaks. Added 27 October: the 10-K puts initial output from the new Hiroshima cleanroom in late calendar 2028.
• The fiscal first-quarter print, due in December. Micron guided revenue to $61.5 billion, plus or minus $1.5 billion. It had not announced a date by 30 October; it reported the same quarter last year on 17 December 2025. It will be Micron’s first report since Intel’s PC warning. Watch what it says about PC and consumer DRAM: whether it names lost PC volume, or says those bits went to data centres at higher prices.
• The third-quarter 13Fs, due 16 November. They give the funds’ holdings at 30 September, after the July sell-off and before the results, and will not show when any of it moved.
• China’s added supply. Vendors say CXMT’s edge is DDR5 supply, not price — new capacity, the classic cycle-ender. Whether it reaches HBM is the structural question.

Micron lives or dies by the same constraint as these names — small equal-weighted groups, one constraint each. Not investment products: see all categories.