Memory chipmaker Micron Technology (NASDAQ: MU) closed at $895.88 on Tuesday, May 26, 2026, up 19.3% on the day and crossing the $1 trillion market-capitalization threshold for the first time in its history. The move pushed Micron into a US trillion-dollar club that previously had room for only nine members — and capped a year in which AI training infrastructure rewired the entire memory cycle.
Tuesday’s session lifted Micron’s market value to roughly $1.010 trillion against about 1.13 billion shares outstanding, per data published by StockAnalysis. The 52-week range — $92.22 at the low, $916.80 at the high reached intraday Tuesday — speaks to how violently the memory cycle has re-rated in roughly twelve months.
What changed on Tuesday
The catalyst was a continuation of the high-bandwidth memory (HBM) thesis that began running last summer. Demand for HBM3E and the company’s first HBM4 samples — both stacked DRAM products that sit next to GPUs from Nvidia, AMD, and the hyperscaler-designed custom silicon — has run ahead of supply across recent quarters. Micron, alongside Korea’s SK Hynix and Samsung Electronics, is one of only three companies in the world that ships HBM at scale.
The company has previously disclosed multi-year HBM bookings on its earnings calls, telling analysts that near-term HBM output is committed under long-dated agreements. Combined with Nvidia’s earnings commentary that Blackwell-class systems are supply-constrained on memory, the read-through to Micron’s pricing power has been direct.
| Metric | Value |
|---|---|
| Closing price (May 26, 2026) | $895.88 |
| Daily change | +19.29% |
| Market cap | $1.010 trillion |
| Shares outstanding | ~1.13 billion |
| 52-week range | $92.22 – $916.80 |
| Trailing P/E | 42.1x |
| TTM revenue | $58.12 billion |
Micron now sits inside the US trillion-dollar club
Before Tuesday’s close, the US trillion-dollar list contained nine names anchored by Nvidia at the top. Micron’s break above $1 trillion makes it the tenth. The chart below ranks the club at Tuesday’s close, with figures sourced from CompaniesMarketCap.
A cyclical name reframed as a structural story
The market’s willingness to assign Micron a trillion-dollar valuation is a sharp departure from how memory has historically traded. DRAM and NAND are commodity industries: pricing swings of 30–50% between troughs and peaks have repeatedly turned net income from positive to negative inside two fiscal years. Micron’s own income statement makes that point uncomfortably well.
| Fiscal Year | Revenue ($B) | Net Income ($B) |
|---|---|---|
| FY2022 (Sep 2022) | 30.76 | 8.69 |
| FY2023 (Aug 2023) | 15.54 | (5.83) |
| FY2024 (Aug 2024) | 25.11 | 0.78 |
| FY2025 (Aug 2025) | 37.38 | 8.54 |
The story the bulls now tell is that HBM is structurally different. Unlike commodity DRAM, HBM requires advanced packaging (through-silicon vias, base-die logic, custom test capacity), and each generation must be qualified by GPU vendors quarters ahead of shipment. That qualification creates switching costs, lengthens supply contracts, and pushes pricing closer to logic-like margins than to commodity-memory margins.
Recent results back the structural read. Micron’s trailing-twelve-month revenue of roughly $58.1 billion is nearly 4x the FY2023 trough of $15.5 billion. EPS over the last twelve months sits near $21.3 against a peak-FY2022 figure that was meaningfully lower. The trailing P/E of roughly 42x looks expensive next to memory’s historical mid-cycle multiple in the mid-teens, but markedly cheaper than the implied multiple on FY2026 sell-side estimates that have steadily been revised higher.
Risks that haven’t gone away
Memory is still memory. Three things could end this re-rating quickly. First, Samsung’s HBM4 qualification status with Nvidia is the single biggest swing factor: a confirmed Samsung qualification adds material supply and would compress prices. Second, hyperscaler capex digestion — the 2026 capex prints from Microsoft, Meta, Alphabet, Amazon, and Oracle have been the source of demand visibility, and any guide-down resets the multiple. Third, US export controls on advanced memory to China remain a live policy file; an expansion would reduce Micron’s served addressable market.
For now the tape is voting on demand. Tuesday’s session put roughly $160 billion of equity value into Micron at the open and kept it there at the close — an unusually orderly path for a 19% single-name move. That is the signature of institutional re-positioning rather than a retail squeeze, and it is consistent with allocators treating the name as a core AI-infrastructure holding rather than a cyclical trade.
Sources
- StockAnalysis — Micron Technology (MU) quote & statistics
- StockAnalysis — MU income statement
- CompaniesMarketCap — trillion-dollar company rankings
- Yahoo Finance — MU real-time quote
- Micron — HBM product page
Disclosure: This article was produced with AI assistance and reviewed before publication. It is for informational purposes only and is not investment advice.