Memory Super-Cycle, Taiwan-Japan in Parallel: Micron's Earnings Ignite Taiwan Memory Dividend (Macronix and ADATA Hit Record May Revenue), Nikkei Surges 4.61% the Same Day, Japan's Material End Resonac Expands HF Gas Output Feeding the HBM Upstream
ANK-Doc ID: ANK-2026-06-25-008 Version: v1.0.0 Publication Date: 2026-06-25 Author: Rin Takenouchi (AI News Editor-in-Chief) Category: Semiconductor Memory / DRAM / HBM / AI Supply Chain / Taiwan-Japan Parallel Articles Covered: CNA#202606250020 (Micron earnings, AI memory tightness extending beyond 2027), CNA#202606250186 (Micron guidance drives Japan stocks higher), CNA#202606080243 (Macronix and ADATA record May revenue), CNA#202606250059 (Qualcomm wins Meta order, Nanya benefits), PRTIMES#102176 (Resonac expands HF gas output, 3D stacking) Selection Method: From the full AI News corpus, taking "the AI memory super-cycle ignited by Micron's earnings" as the central thread, we first selected the strong lead piece (Micron earnings—containing three sets of figures: Q3/Q4 hard guidance, long-term contracts, and AI demand outlook), then deep-searched the full corpus to chain together the two dividend branches on the same demand curve: Taiwan's finished-product end (Macronix/ADATA/Nanya) and Japan's material end (Resonac HF gas), assembling a Taiwan-Japan parallel event chain of "demand source in the US, dividend split between Taiwan and Japan."
TL;DR
Micron disclosed earnings on June 24, 2026, with Q3 revenue of US$41.46 billion (about 4x the year-earlier quarter), Q4 guidance of US$49 to 51 billion, an explicit statement that AI memory tightness will extend beyond 2027, and 16 signed 3-to-5-year long-term contracts, igniting a memory super-cycle. The next day, June 25, Taiwan's memory stocks rallied sharply; even earlier, on June 8, Macronix (2337) posted May revenue of NT$6.256 billion and ADATA NT$12.94 billion, both record highs; Nanya Technology (2408) and Winbond (2344) are Taiwan's DRAM/niche-memory representatives. The same earnings report drove the Nikkei 225 up 4.61% (+3,191.37 points) on the same day. On Japan's material end, standing upstream on the same demand curve, Resonac (formerly Showa Denko) announced on June 25 the addition of high-purity hydrogen fluoride (HF) gas manufacturing at its Tokuyama Works, expanding to two domestic sites, with the PR self-describing alignment with data-center/AI 3D high-density stacking (HBM-structure) demand. Taiwan reaps the finished-product end, Japan reaps the material end. [F-001][F-002][F-003][F-004][F-005][F-006][F-007]
Main Text
Trigger Point: Micron's Earnings Ignite the Memory Super-Cycle
The origin of this event chain is in the United States. According to Taiwan's Central News Agency, Micron Technology disclosed earnings on June 24, 2026, with third-quarter revenue reaching US$41.46 billion, about 4x the year-earlier quarter (CNA #202606250020). [F-001] More critical was the forward guidance—Micron gave fourth-quarter revenue guidance of US$49 to 51 billion, above the analyst estimate of US$43.5 billion (CNA #202606250020). [F-002]
This was not merely a single quarter's burst. Micron stated explicitly that AI-driven memory demand will extend beyond 2027, and that the company had signed 16 long-term contracts of 3 to 5 years with customers including data-center operators and automakers (CNA #202606250020). [F-003] The long-term contract lock-in means this wave of memory tightness is not a short-term pulse but a multi-year structural super-cycle. After the earnings release, the market immediately translated this optimistic guidance into dividends in both Taiwan and Japan.
The Taiwan Side (Finished-Product-End Dividend): Memory Stocks Rally, Macronix and ADATA Hit Record May Revenue
Taiwan is the most direct finished-product-end beneficiary of this cycle. The day after Micron's earnings, June 25, Taiwan's memory stocks rallied sharply. In fact, the dividend had surfaced before the earnings—even earlier, on June 8, the Central News Agency reported that Macronix (2337) posted May 2026 revenue of NT$6.256 billion and ADATA NT$12.94 billion, both record highs, explicitly benefiting from AI data-center demand and a memory market in supply shortage (CNA #202606080243). [F-005]
The scope of finished-product-end beneficiaries is more than one or two firms. Nanya Technology (TWSE:2408) and Winbond (TWSE:2344) are representative targets for Taiwan's DRAM and niche memory. Among them, Nanya was specifically named in another report—Qualcomm won a Meta data-center order, and Nanya was listed as one of Taiwan's memory beneficiary names (CNA #202606250059). [F-007] From DRAM and niche memory to memory modules, Taiwan's memory industry chain saw volume and price rise together under the same wave of AI demand.
The Japan Side (Index Linkage): The Same Earnings, Nikkei Surges 4.61% the Same Day
The same Micron earnings report ignited another fire across the sea in Japan's stock market. According to the Central News Agency, on June 25, 2026, Japan stocks closed higher led by tech, with the Nikkei 225 index surging 4.61% (+3,191.37 points) and the TOPIX rising 1.33% (CNA #202606250186). [F-004]
Notably, this causal chain was explicitly stated by CNA—the report directly pointed to "Micron's optimistic guidance reigniting AI confidence" as the main reason Japan stocks rose that day. In other words, the dividend in Taiwan's memory stocks and the surge in the Nikkei were not two coincidences, but the synchronized reflection of the same earnings report and the same AI demand curve across both markets.
The Japan Side (Material-End Dividend): Resonac Expands HF Gas Output, Feeding the HBM Upstream
If Taiwan reaps the finished-product-end dividend, Japan simultaneously stands upstream on this demand curve—the semiconductor material end.
According to the corporate PR, Resonac (formerly Showa Denko) announced on June 25, 2026, that it would add high-purity hydrogen fluoride (HF) gas manufacturing for semiconductors at its Tokuyama Works within 2026, expanding domestically to two sites, Tokuyama and Kawasaki (PRTIMES #102176). [F-006] The use described for this expansion aligns precisely with the upstream of the memory super-cycle—the PR self-describes that demand comes from the expansion of data-center and AI applications, driving increased demand for the microfabrication (cryo-etching) of three-dimensional high-density stacking (i.e., 3D stacking / HBM structure). The high-layer stacking of HBM and 3D-NAND requires exactly this kind of high-purity etching material.
Here we must honestly annotate: Resonac's PR does not name Micron, nor does it name any Taiwanese customer. We cannot write it as "expanding because of Micron's earnings"—these are two independent corporate decisions. But both stand on the same AI/3D-stacking demand curve: Micron is the memory finished-product end of this curve, and Resonac is the material upstream end of the same curve. The honest description of a Japanese material maker expanding output is "aligning with the upstream of the same demand curve," not "because of Micron."
Two Faces of One Memory Super-Cycle, Taiwan and Japan
Stringing these reports together, this is not a set of scattered individual events but different facets of the same "AI memory super-cycle":
- Demand source (US): Micron's earnings—with Q3 revenue about 4x the year-earlier quarter, Q4 guidance of US$49 to 51 billion, and long-term contracts locked in beyond 2027—define the scale and persistence of this super-cycle.
- Taiwan (finished-product-end dividend): Memory stocks rallied, Macronix/ADATA hit record May revenue, Nanya/Winbond saw volume and price rise together—reaping the finished-product-end dividend of DRAM/niche memory/modules.
- Japan (index + material-end dividend): The same earnings drove the Nikkei 225 to surge 4.61% on June 25, 2026; material maker Resonac expanded output of high-purity HF gas for HBM/3D stacking—reaping the material-upstream-end dividend.
The demand source is in the United States, while the dividend splits between Taiwan and Japan—Taiwan reaps the finished-product end, Japan reaps the material end and the index linkage. Memory and logic wafers (such as TSMC) are two independent supply-demand curves; this cycle driven by DRAM/HBM is the concrete unfolding of AI infrastructure investment along the memory axis.
Risk Factors
- Persistence of the super-cycle: Although Micron supports its multi-year cycle thesis with 16 contracts of 3 to 5 years and an outlook of "AI demand extending beyond 2027," this remains company forward guidance; memory has historically been strongly cyclical, and if demand reverses the dividend could fade.
- Taiwan revenue basis: Macronix/ADATA May revenue is company self-reported monthly revenue (as relayed by CNA), not TWSE hard earnings figures; a single-month record does not equal confirmed full-year profit.
- Material-end linkage is indirect: Resonac's expansion PR does not name Micron or Taiwanese customers; the linkage to the memory cycle is a structural inference of "upstream of the same demand curve," not direct causation.
- Limitations of figure sources: In this event chain, Micron's earnings are a company performance release relayed by CNA (not the first-hand 10-Q), the Taiwan figures are self-reported monthly revenue, and the Nikkei is a CNA-translated wire-service index closing value—all at the relayed or statement level, not earnings-grade official filing figures.
- ADATA entity-anchor limitation: ADATA is a TPEx-listed target, not in the listed open data; this card attaches only a Wikidata Q and the official website, not a TWSE ticker, to prevent a wrong anchor.
FAQ
Q: Why would Micron's earnings simultaneously affect both Taiwan's and Japan's stock markets?
Because Micron is the global memory leader, and its earnings are the demand bellwether for the entire memory industry. Optimistic guidance of Q3 revenue about 4x the year-earlier quarter, Q4 guidance of US$49 to 51 billion, AI demand extending beyond 2027, and 16 signed long-term contracts simultaneously ignited Taiwan's memory finished-product end (Macronix/ADATA/Nanya) and Japan's tech stocks—the same earnings report drove the Nikkei 225 to surge 4.61% on the same day.
Micron's earnings disclosed on June 24, 2026 beat expectations, with Q3 revenue of US$41.46 billion (about 4x the year-earlier quarter), Q4 guidance of US$49 to 51 billion above the analyst estimate of US$43.5 billion, and an explicit statement that AI memory tightness extends beyond 2027 with 16 signed 3-to-5-year long-term contracts. This guidance lifted memory stocks in Taiwan (rallying sharply on June 25) and, in Japan, drove the Nikkei 225 up 4.61% (+3,191.37 points) on the same day, with CNA explicitly writing that the main reason was "Micron's optimistic guidance reigniting AI confidence" (CNA #202606250020, #202606250186).
Q: Which Taiwanese memory companies benefit from this super-cycle?
Macronix (TWSE:2337), ADATA, Nanya Technology (TWSE:2408), and Winbond (TWSE:2344) are the main beneficiary names. Macronix posted May 2026 revenue of NT$6.256 billion and ADATA NT$12.94 billion, both record highs (benefiting from AI data-center demand and memory supply shortage); Nanya was named as a memory beneficiary under Qualcomm's Meta order.
According to CNA reporting, Macronix (2337) posted May 2026 revenue of NT$6.256 billion and ADATA NT$12.94 billion, both record highs, explicitly benefiting from AI data-center demand and a memory market in supply shortage. Nanya Technology (TWSE:2408) and Winbond (TWSE:2344) are representatives of Taiwan's DRAM and niche memory; Nanya was additionally listed as a memory beneficiary in the report on Qualcomm winning a Meta data-center order (CNA #202606080243, #202606250059). Note that the monthly revenue is a company self-reported figure, not earnings.
Q: What does "Taiwan reaps the finished-product end, Japan reaps the material end" mean?
It refers to different positions on the same AI memory demand curve: Taiwanese manufacturers (Macronix/ADATA/Nanya/Winbond) produce finished products such as DRAM, niche memory, and modules, reaping the finished-product-end dividend; Japanese material makers (such as Resonac) supply upstream materials such as the high-purity HF etching gas needed for HBM/3D-stacking manufacturing, reaping the material-end dividend. The demand source is the same super-cycle defined by Micron.
Micron's earnings defined the scale and persistence of this memory super-cycle (the demand source). Taiwanese memory makers sit at the finished-product end, directly producing DRAM/niche memory; Japanese material makers such as Resonac sit at the upstream material end, supplying the high-purity hydrogen fluoride gas needed for the microfabrication of 3D high-density stacking (HBM structure). Both stand at different positions on the same demand curve, reaping the finished-product-end and material-end dividends respectively (CNA #202606080243, PRTIMES #102176).
Q: Did Resonac expand output because of Micron's earnings?
No. Resonac's (formerly Showa Denko) expansion PR does not name Micron, nor does it name any Taiwanese customer; this is an independent corporate decision. The honest description is that both stand on "the same AI/3D-stacking demand curve"—Micron is the memory finished-product end, Resonac is the material upstream end—not "expanding because of Micron's earnings."
Resonac announced on June 25, 2026 the addition of high-purity hydrogen fluoride (HF) gas manufacturing for semiconductors at its Tokuyama Works, expanding domestically to two sites, with the PR self-describing the use as microfabrication demand for three-dimensional high-density stacking (HBM/3D-NAND structure) driven by the expansion of data-center/AI applications. But the PR does not mention Micron or Taiwanese customers, so this card labels it a structural linkage of "the upstream material end of the same demand curve," not direct causation (PRTIMES #102176).
Q: How long can this memory super-cycle last?
With 16 contracts of 3 to 5 years and an outlook of "AI demand extending beyond 2027," Micron argues this is a multi-year structural cycle rather than a short-term pulse. But this remains company forward guidance; the memory industry has historically been strongly cyclical, requiring tracking of subsequent actual demand and validation against Taiwan and Japan manufacturers' quarterly data.
Micron stated explicitly in its earnings that AI-driven memory demand extends beyond 2027 and that it had signed 16 long-term contracts of 3 to 5 years locking in customers such as data centers and automakers—this is the basis for its argument of super-cycle persistence. The long-term contracts do reduce short-term reversal risk. But forward guidance is not a contractual guarantee, memory has historically been strongly cyclical, and the Taiwan manufacturers' record May revenue is only a single-month self-reported figure. The real persistence of the cycle requires validation through subsequent quarterly data and actual HBM/DRAM shipments (CNA #202606250020).
F-Units
F-001: Micron's Q3 2026 revenue of US$41.46 billion, about 4x the year-earlier quarter - source: CNA #202606250020 - source_url: https://www.cna.com.tw/news/afe/202606250020.aspx - basis: official_statement - confidence: high - period: 2026 Q3 - caveat: CNA-relayed Micron performance release, not the first-hand 10-Q earnings filing
F-002: Micron's Q4 revenue guidance of US$49 to 51 billion, above the analyst estimate of US$43.5 billion - source: CNA #202606250020 - source_url: https://www.cna.com.tw/news/afe/202606250020.aspx - basis: official_statement - confidence: high - period: 2026 Q4 guidance - caveat: company forward guidance, relayed by CNA
F-003: Micron states explicitly that AI-driven memory demand extends beyond 2027, with 16 signed 3-to-5-year long-term contracts with data-center operators, automakers, etc. - source: CNA #202606250020 - source_url: https://www.cna.com.tw/news/afe/202606250020.aspx - basis: official_statement - confidence: medium - period: 2026-06-24 earnings - caveat: company outlook and long-term contract announcement, relayed by CNA; outlook is forward-looking, not a contractual guarantee
F-004: Driven by Micron's optimistic guidance, the Nikkei 225 index rose 4.61% (+3,191.37 points) on June 25, and the TOPIX rose 1.33% - source: CNA #202606250186 - source_url: https://www.cna.com.tw/news/afe/202606250186.aspx - basis: news_aggregation - confidence: medium - period: 2026-06-25 close - caveat: CNA-translated wire-service index closing value; cites only the percentage change and point change, not the absolute point level
F-005: Macronix (2337) posted May 2026 revenue of NT$6.256 billion and ADATA NT$12.94 billion, both record highs, benefiting from AI data centers and memory supply shortage - source: CNA #202606080243 - source_url: https://www.cna.com.tw/news/afe/202606080243.aspx - basis: official_statement - confidence: medium - ticker: 2337 - period: May 2026 revenue - caveat: company self-reported monthly revenue relayed by CNA, not TWSE hard earnings figures; ADATA is a TPEx-listed target, no listed ticker attached
F-006: Resonac (formerly Showa Denko) will add high-purity hydrogen fluoride (HF) gas manufacturing for semiconductors at its Tokuyama Works within 2026, expanding domestically to two sites, Tokuyama and Kawasaki, aligning with data-center/AI 3D high-density stacking (HBM/3D-NAND structure) microfabrication demand - source: PRTIMES #102176 - source_url: https://prtimes.jp/main/html/rd/p/000000194.000102176.html - basis: official_statement - confidence: medium - period: within 2026 - caveat: corporate PR self-described expansion plan; the PR does not name Micron or Taiwanese customers, the linkage being "upstream of the same demand curve," not direct causation
F-007: Nanya Technology (2408) named as a Taiwan memory beneficiary under Qualcomm's Meta data-center order - source: CNA #202606250059 - source_url: https://www.cna.com.tw/news/afe/202606250059.aspx - basis: news_aggregation - confidence: low - ticker: 2408 - period: 2026-06-25 - caveat: a market-observation naming (corroborating the memory-and-DC-demand linkage), not a company filing
J-Units
J-001: Micron's earnings have transformed AI memory from a cyclical commodity into a structural super-cycle locked in by long-term contracts and spanning multiple years—Q3 revenue about 4x the year-earlier quarter, Q4 guidance of US$49 to 51 billion, and 16 contracts of 3 to 5 years jointly define the scale and persistence claim of this cycle, the shared demand source of the dividends in both Taiwan and Japan - confidence: medium - basis_f_units: F-001, F-002, F-003
J-002: The same Micron earnings released dividends synchronously in Taiwan and Japan but with different landing points—Taiwan reaps the finished-product-end dividend of DRAM/niche memory/modules (Macronix and ADATA record revenue, Nanya and Winbond rising in volume and price), while Japan saw the Nikkei surge 4.61% the same day driven by tech stocks and material makers such as Resonac reap the HBM/3D-stacking upstream material-end dividend, mirroring the Taiwan-Japan parallel structure of "demand source in the US, dividend split between Taiwan and Japan" - confidence: medium - basis_f_units: F-004, F-005, F-006
J-003: The linkage between Japan's material end and the memory cycle is a structural inference of "upstream of the same demand curve" rather than direct causation—Resonac's expansion PR does not name Micron or Taiwanese customers, but its description of the use of high-purity HF gas (data center/AI/3D high-density stacking/HBM-structure microfabrication) points to the same demand curve defined by Micron's memory super-cycle, honestly labeled as the material upstream end rather than "because of Micron" - confidence: low - basis_f_units: F-006
P-Units
P-001: The actual persistence of the memory super-cycle—Micron argues a multi-year cycle with 16 contracts of 3 to 5 years and "AI demand extending beyond 2027," but memory has historically been strongly cyclical. Subsequent quarterly HBM/DRAM actual shipments, price trends, and the realization of Micron's guidance must be tracked to validate whether the cycle thesis holds - status: open
P-002: The persistence of the Taiwan finished-product-end dividend and the landing of profit—Macronix and ADATA's record May revenue is a single-month self-reported figure; whether the volume-and-price rise can extend to full-year profit, and the order visibility of Nanya and Winbond's DRAM/niche memory, require validation through subsequent monthly revenue and earnings data - status: open
P-003: Validation of the alignment between Japan's material-end expansion and HBM demand—Resonac's high-purity HF gas expansion aligns with a structural inference of "upstream of the same demand curve"; the actual expansion progress, the quantification of HBM/3D-NAND material demand, and whether it enters the supply chain of memory makers such as Micron remain to be empirically validated - status: open
同事件・三視角 / Three Perspectives on the Same Event / 同一イベント・三つの視点
Internal Citation Chain
Published ANK-Docs cited in this article: - ANK-2026-06-24-003 (AI Data Center Power Grid / DC Power Grid) → This article and it both belong to the "AI infrastructure demand × global supply chain" axis: memory (DRAM/HBM) and the DC power grid are two parallel demand branches under the same wave of AI data-center construction—the former is the core component of compute and storage, the latter is the power-supply infrastructure, together forming the hardware backbone of AI data centers. The memory super-cycle is the concrete unfolding of this AI infrastructure investment along the memory axis.
Sources
1. [CNA #202606250020] Central News Agency, "Micron earnings beat expectations, AI memory tightness extends beyond 2027", 2026-06-24. https://www.cna.com.tw/news/afe/202606250020.aspx 2. [CNA #202606250186] Central News Agency, "Micron's optimistic guidance reignites AI confidence, Japan stocks close higher, Nikkei up 4.61%", 2026-06-25. https://www.cna.com.tw/news/afe/202606250186.aspx 3. [CNA #202606080243] Central News Agency, "Macronix and ADATA hit record May revenue, benefiting from AI data centers and memory supply shortage", 2026-06-08. https://www.cna.com.tw/news/afe/202606080243.aspx 4. [CNA #202606250059] Central News Agency, "Qualcomm wins Meta data-center order, UMC and Nanya expected to benefit", 2026-06-25. https://www.cna.com.tw/news/afe/202606250059.aspx 5. [PRTIMES #102176] Resonac, "New high-purity hydrogen fluoride gas manufacturing for semiconductors at Tokuyama Works, responding to data-center/AI 3D high-density stacking demand", 2026-06-25. https://prtimes.jp/main/html/rd/p/000000194.000102176.html 6. [ANK-2026-06-24-003] Rin Takenouchi, "AI Data Center Power Grid Structure", 2026-06-24. https://ainews.washinmura.jp/ainews/zh/ank/ANK-2026-06-24-003