Micron’s AI Boom Shifts the Risk of the Next Downturn

Scarcity explains the earnings surge

Micron reported fiscal fourth-quarter 2026 revenue of $54.23 billion on September 30, up 379% year on year, with a non-GAAP gross margin of 87%. Its revenue guidance for the first quarter of fiscal 2027 centres on $61.5 billion. Pricing remains a major contributor, with DRAM selling prices rising by a high-teens percentage sequentially against only mid-single-digit growth in bit shipments. Earnings driven by scarcity can reverse well before factories have time to adjust their cost base.

Fiscal 2023 provides a useful warning. Revenue fell from $30.76 billion to $15.54 billion, and Micron recorded a $5.83 billion GAAP net loss. A memory manufacturer commits capital years before selling the resulting output. When customers reduce orders, prices can fall while depreciation and other fixed costs persist. Record profitability therefore needs to be assessed alongside the industry’s ability to avoid another capacity mismatch.

HBM tightens the wider DRAM market

High-bandwidth memory, or HBM, changes that supply equation. It provides the rapid data access required by AI accelerators, at a substantial manufacturing cost. Micron previously estimated that HBM3E consumes roughly three times the wafer capacity of conventional DDR5 memory for the same number of bits on the same process technology. Micron expects that capacity burden to increase with successive generations. Expanding HBM production consequently leaves fewer manufacturing resources available for conventional DRAM.

The economic effect reaches beyond the HBM product line. AI customers create demand for specialised memory while absorbing capacity that could otherwise supply general-purpose chips. The resulting constraint can support conventional DRAM prices as well. Micron’s exposure to AI therefore includes the higher value of scarce manufacturing capacity throughout its product mix.

Customers commit beyond the current shortage

Micron has signed 26 Strategic Customer Agreements, which management expects to represent over 35% of revenue through 2030. Defined pricing frameworks, predominantly with floors and ceilings, cover three-quarters of that projected contract revenue. The remainder is repriced periodically. Remaining performance obligations stand at approximately $150 billion, calculated from committed volumes and minimum prices under qualifying agreements. This measures contracted future business, subject to performance and collection, rather than revenue already earned.

The contracts change who carries the risk

Under take-or-pay terms, customers commit to specified purchases or the required payment under the agreement. Covered volumes become less vulnerable to discretionary order cuts, while price floors limit the downside on covered sales. Customers obtain supply assurance in exchange for accepting obligations that extend beyond the shortage. By accepting price ceilings, Micron gives up some potential upside in exchange for greater revenue visibility. The commercial bargain redistributes risk between buyer and supplier.
Customers also provided $12.75 billion in deposits during fiscal 2026. These appear as financing inflows and do not increase operating cash flow or earnings. The deposits are returnable over time under the agreements. They help fund the capacity build-out without adding to profit or permanent shareholder capital.

More secure demand can encourage more supply

Micron reported $27.37 billion of net capital expenditure in fiscal 2026. Management expects approximately $25 billion in the first half of fiscal 2027, net of anticipated government incentives, followed by higher second-half spending. Most of the increase over previous fiscal 2027 investment plans is earmarked for construction, principally to bring additional cleanroom space into service from late 2028 onwards.

Construction does not immediately produce saleable chips. Equipment installation and the production ramp follow, allowing shortages to persist while investment accelerates. Yet the same contracts that make an individual expansion easier to finance may encourage greater aggregate capacity. If demand subsequently disappoints, the industry can still face excess supply. Better risk-sharing could soften Micron’s financial losses without eliminating the physical imbalance behind the cycle.

The valuation case depends on the earnings floor

Contract coverage offers protection of varying strength. Fixed prices, pricing bands and periodically renegotiated prices create different exposures. Even binding commitments leave returns dependent on production costs, technology execution and customers meeting their obligations. A downturn would test how much protection survives in practice, including the risk of renegotiation or counterparty distress. Extending today’s margins indefinitely would attach more certainty to the contracts than the evidence supports.

For investors, the relevant measure is earnings power across a full cycle. Exceptional profits can make a price-to-earnings ratio look inexpensive shortly before earnings normalise. Stronger contractual protection could support a more resilient earnings base, provided it translates into cash generation when supply becomes plentiful. The case for a durable re-rating therefore rests on the returns Micron can sustain on its expanding asset base after the shortage ends.

Warning! This material is not intended as investment advice. Past performance data does not guarantee future returns. Investing in foreign currencies may affect your returns due to their fluctuations. Any transaction in securities may result in both profits and losses. The assumptions and expectations set forth in this material are only estimates that may not be accurate and may change depending on current economic conditions. These statements do not guarantee future returns.