The AI buildup is increasingly a story about memory, power and data movement rather than processors alone. Raj Mirpuri, speaking for Nvidia about its expanded relationship with SK Hynix, said: "The expansion will include a co-develop opportunity for us on the next-generation SK Hynix AI memory, and this will help us secure a stable supply of HBM memory."1 The leading AI chip designer is working to lock in a supplier of the high-bandwidth memory its accelerators depend on. The source for that report has a measured reliability of 53% of 6,376 checked claims holding up, so we treat it as a signal and not a settled fact.1
Micron's filings show the scale of the bet
The most solid numbers in this story come from Micron's SEC filings. Capital expenditure was $7.676 billion in fiscal 2023, $8.386 billion in fiscal 2024 and $15.857 billion in fiscal 2025.2 That is roughly double the prior year's spending, in one step. The first-quarter figures show the same acceleration: $1.796 billion in Q1 2024, $3.206 billion in Q1 2025 and $5.389 billion in Q1 2026.2 The latest first quarter is about three times the level of two years earlier.
Cash has grown too. Micron held $10.163 billion at the end of Q3 2025 and $24.995 billion at the end of Q3 2026.3 At the Q2 mark the comparison is $7.552 billion in 2025 against $13.908 billion in 2026.3 The company is spending far more on factories and building a much larger cash cushion at the same time.
Cost of revenue rose much more slowly than spending. It went from $16.956 billion in fiscal 2023 to $19.498 billion in fiscal 2024 and $22.505 billion in fiscal 2025.4 That is about a third higher over two years, while capex more than doubled.2,4 Our dossier holds no revenue figures for Micron, so we cannot say what that gap means for margins. We flag it as the thing to check next.
Analysts are leaning in. The research firm Lynx Equity Strategies rates Micron a clear buy with anticipated upside of 33%, and Sandisk a clear buy with anticipated upside of 49%.5 These are forecasts from one firm, reported in a Motley Fool article that moved ASML shares in sympathy.5 That article's source has a measured reliability of 31% of 58 checked claims, a small sample, so read the targets as opinion. Under CHIPS Act restrictions, Micron could technically restart stock buybacks, though analysts were not necessarily expecting an announcement.6
Beyond the GPU: power, tags and the edge
The supply chain around the chips is also reporting strength. Advanced Energy reported Q3 2026 revenue of $696 million, up 50% year over year and above the high end of its guidance. It guided Q4 revenue to $735 million, plus or minus $25 million.7 Reporting diverges on the growth rate: our narrative summary of the period cites 64%, while the dated results record says 50%.7 We use the results record, which is tied to the company's own release.
Impinj reported record third-quarter revenue of $112.1 million, with record endpoint IC revenue and unit volumes.8 Its Q4 guidance of $104.0 to $107.0 million sits below that record, which is worth noting beside the "record" headline.8
On the edge, Harvest Praxis launched its Hyper AI Brain on October 22, 2026. The company describes it as a physical-AI, on-device computing platform on MediaTek's 3nm chip, and as the first fusion of a robot's brain and cerebellum on a single SoC.9 Our narrative summary also lists edge launches from Zeta (AIM) and ASUS with NVIDIA RTX Spark, but the dossier has no detail on them, so we say no more.10 Nvidia's own entity graph is broad. It links the company to DGX Spark, the NeMo toolkit, guardrails and microservices, and the Nemotron 3 Super model, and records AMD as a competitor.11
Moving data and wasting less heat
Bandwidth is the next constraint. GlobalFoundries signed a letter of intent with the U.S. Department of Commerce under which the CHIPS Research and Development Office is expected to award it $300 million for silicon photonics.12 This is a letter of intent, not a completed award. AMD's Mark Papermaster responded: "As AI systems scale, moving data efficiently is as critical as increasing compute performance." He added that "Silicon photonics and advanced packaging will be key to delivering the bandwidth, energy efficiency, and system-level connectivity required for the next generation of AI cluster infrastructure."12
A more radical idea comes from Hannah Earley, 31, cofounder and chief technology officer of Vaire Computing. Her startup is building chips that recycle energy normally lost as heat, an approach called reversible computing. She argues waste heat is a design choice, not an inevitable cost of a calculation.13 She compares conventional computing to racing through a city and braking at every intersection, so the car loses momentum and burns more fuel to speed up again.13 Of her energy-recycling resonator she said: "It's really a glorified pendulum." She also said: "I want to tackle every part of how computers are built, and rethink it in these terms."13 This is research-stage thinking. The source article's measured reliability is only 6% of 16 checked claims, a very small sample, so we present it as a founder's argument and not as proven technology.13
Consolidation and the smaller names
Deal-making is under way. Skyworks and Qorvo named their expected leadership team for the combined company, pending completion of the transaction. Bob Bruggeworth said: "Today's announcement reflects the strong partnership that has shaped our integration planning efforts from the very beginning."14 Bull and Kalray announced a collaboration on networking for AI and high-performance computing, including compatibility with Ultra Ethernet, a new open standard. Kalray's Éric Baissus said the deal confirms the relevance of Kalray's technology vision.15 Our narrative summary also notes SambaNova weighing a 2027 US IPO, which we cannot corroborate further.10
At the small end, Solitron Devices shows how uneven the cycle is. First-quarter fiscal 2027 net sales rose 101% to about $5.44 million from $2.70 million. Net bookings fell 48% to $1.45 million from $2.80 million, while backlog rose 28% to $23.34 million from $18.26 million.16 The company said it expects sales "to continue to be at this level or greater for the remainder of the 2027 fiscal year."16 Our narrative summary also records slow defense procurement and a strategic review.10
One insider data point: Lattice Semiconductor SVP Esam Elashmawi reported selling 16,773 shares on Aug. 16 and 17, 2026, at a weighted average of $134.56 per share. Insider sales can have many causes, and the filing alone does not say why.17
What to watch
- Whether Micron's Q2 and Q3 capex keep rising, and whether cost of revenue stays well below capex growth.2,4
- Whether Micron announces a buyback.6
- Whether Impinj's Q4 revenue lands in its $104.0 to $107.0 million guide.8
- Whether Advanced Energy delivers its $735 million Q4 guide.7
- Whether GlobalFoundries' letter of intent becomes a finalized award.12
- Whether Solitron's falling bookings catch up with its rising sales.16
Several headline claims here rest on sources with low measured reliability. The SEC-backed Micron figures are the firmest ground in this piece.