Micron Technology sits at the centre of the AI‑driven memory supercycle, producing earnings so outsized that they are distorting aggregate S&P 500 beat statistics. Its HBM franchise is sold out for the entire 2026 calendar year, gross margins are tracking towards 81%, and forward guidance implies revenue levels that would have seemed implausible for a memory manufacturer as recently as 2024. The risks are familiar for a cyclical semiconductor name (capital intensity, supply discipline, and the pace of demand), but the structural tailwinds are equally clear.
The Number That Frames the Entire Story Around Micron Technology’s Dominance
Here’s a data point that hits home how important Micron is. As the March 2026 earnings season begins, the average S&P 500 company is beating EPS estimates by roughly 30%. Remove Micron, and the figure falls to about 17%. There’s a good reason for this
Micron is one of three scaled global producers of DRAM and NAND, alongside Samsung and SK Hynix. Its history has been defined by the classic memory cycle: oversupply and collapsing margins followed by tight supply and extraordinary profitability. For much of the past decade, the market treated it as a competent but structurally volatile operator, with a five‑year average P/E of ~15x reflecting scepticism about earnings durability.
The shift began in 2024 as large language models and AI accelerators (particularly NVIDIA’s GPU platforms) drove explosive demand for HBM, the stacked DRAM required for high‑bandwidth AI workloads. Micron, historically the third‑placed HBM supplier, invested heavily to close the gap with SK Hynix and has steadily gained share. By FY25, revenue from HBM, high‑capacity DIMMs and LP server DRAM reached US$10bn, more than five times the prior year’s level.
Micron released its Q2 results in mid-March 2026, and they are were exceptional by any standard. EPS of US$12.20 (representing a profit of over US$13bn) exceeded consensus of US$8.60 by ~42%, while revenue of US$23.86bn surpassed expectations of ~US$20bn by nearly 20%. These are not marginal beats; they reflect a demand environment and margin structure that consensus models failed to capture.
The earnings call underscored the scale of the shift: “Micron set new records across revenue, gross margin, EPS, and free cash flow in fiscal Q2, driven by strong demand, tight industry supply, and strong execution.”
There Is Upside Ahead…
Guidance for Q3 FY26 is even more striking. Management projects revenue of US$33.5bn (±US$750m) and gross margins of ~81%, with diluted EPS of US$18.90–19.30. For context, US$33.5bn in a single quarter exceeds Micron’s entire FY2023 revenue.
Several structural supports underpin that outlook. HBM supply is sold out for all of calendar 2026, with constraints extending into 2027. Micron remains the only US‑headquartered memory manufacturer at scale, a strategic advantage in an environment shaped by domestic semiconductor incentives and US‑China technology restrictions. Gross margin expansion — from 37% in Q2 FY2025 to 74% in Q2 FY26 and tracking towards 81% — reflects both volume leverage and a decisive mix shift as HBM displaces lower‑margin commodity DRAM.
Longer‑term projections suggest Micron’s annual revenue run rate could reach US$120bn if HBM adoption continues at its current pace, placing it among the world’s largest semiconductor companies. Some analysts expect HBM to account for more than 40% of total DRAM industry revenue by late 2026, a structural change that materially alters industry profitability.
…But There Are Risks Worth Acknowledging
The capital intensity is significant. FY26 capex has been raised to US$25bn, with a further step‑up of more than US$10bn flagged for 2027 to fund new fabs in Idaho and New York. Delivering these projects without overextending the balance sheet or introducing premature supply will require discipline.
Consumer‑end demand remains a weak spot. Management noted that PC and mobile unit sales could fall 10–15% in the 2026 calendar year as elevated memory pricing weighs on demand. Greater China revenue has declined for six consecutive quarters, and a tariff‑related headwind of ~US$1.5bn persists. The stock’s beta of 2.18 reflects its sensitivity to macro conditions.
Competition also matters. SK Hynix retains more than 50% of the premium HBM market and remains NVIDIA’s primary supplier for current and near‑term GPU cycles. Any production bottleneck or technology misstep during the HBM4 transition could see Micron cede share.
Is it Expensive? Perhaps Not
At ~US$485 per share, Micron’s market capitalisation is ~US$549bn. The trailing P/E of ~21x sits below its 12‑month average of ~26x and roughly in line with its 10‑year average. The forward P/E on FY26 estimates is ~12x — a modest multiple for a business guiding to 81% gross margins and benefiting from a structural demand cycle. The stock has risen ~240% over the past year, yet forward earnings estimates have risen even faster, resulting in multiple compression despite the rally.
The 52‑week share price gain (560% as of last week) illustrates the magnitude of the re‑rating. Investors today are not buying a trough‑cycle memory name; they are paying for a structurally repositioned business at a still‑reasonable forward multiple.
The evidence above supports the view that Micron is in the midst of an exceptional earnings cycle driven by structural forces rather than a transient upswing. AI infrastructure spending remains robust, HBM supply constraints are real and management‑confirmed, and Micron’s position as the sole US‑based scaled memory producer adds a geopolitical dimension to its investment case.
The risks are real but manageable relative to the earnings trajectory. Capex intensity is high but funded by operating cash flow of nearly US$12bn per quarter. Consumer‑end softness is being offset by data centre demand.
The key question is whether the AI infrastructure build‑out maintains its velocity through 2027 and beyond. On current evidence, it is a resounding yes. And so for investors with a medium‑term horizon and tolerance for semiconductor cyclicality, Micron is difficult to overlook.
