Zero One Investment Research Weekly Intelligence Brief, Week ending September 19, 2026

Top Market Signals

Apple accepts memory prices 30% to 40% higher a quarter early

Apple (AAPL US) has accepted Samsung Electronics' (005930 KS) memory price increase for 1Q27, with DRAM and NAND flash set to rise 30% to 40% from third-quarter levels, according to Chinese outlet Jiemian News and Korean outlet Asia Daily. Agreeing to that size of increase a quarter before delivery is a buyer conceding that the scarce thing is capacity rather than product.

Customers are also paying earlier. Samsung's advance receipts reached KRW3.29tn, about US$2.23bn, in the first half of 2026, up 70.4% from the end of 2025, as the company used prepayments to harden its multi-year supply agreements. Those agreements now cover most of what the industry can make, at roughly 50% of Kioxia's capacity, about 60% of Micron's (MU US) and about 70% at the two Korean makers.

That changes the question a device maker's cost line has to answer. With most output already contracted and the supply chain expecting 2027 to be the tightest year of the shortage, the live variable is not what memory will cost but whether a buyer holds a contract at all. The 30% to 40% step is what it costs to stay inside one.

Linked stocks: AAPL US, 005930 KS, MU US

Memory buyers negotiate to 2030 while Taiwan's new capacity lands in 2029

Winbond Electronics (2344 TT) president Chen Pei-ming said customers have begun negotiating long-term supply running out to 2029 and 2030, a booking horizon commodity memory buyers have not reached for in recent cycles. He also said he expects 2027 supply and demand to be tighter than 2026.

The mechanism is displacement rather than demand alone. Samsung, SK Hynix and Micron are steering resources toward high-bandwidth memory, the stacked DRAM that sits beside an AI accelerator, and delivering the same capacity that way takes roughly three to four times the silicon. Every increment of that output removes more standard DRAM supply than it adds.

Taiwan's two DRAM makers are building into the gap, and their schedules are what set the contract horizon. Nanya Technology (2408 TT) has raised the capital spending ceiling on its expanded 5A fab to NT$346.6bn. Wafer starts come in the second half of 2027, and planned monthly capacity reaches 35,900 wafers by 2029. Winbond's own Kaohsiung extension reaches volume output at the end of that year.

Bloomberg Intelligence puts supply catching demand in 2028 at the earliest, and later if new fabs run behind. Nanya's 5A wafer starts in the second half of 2027 are the checkable piece of that: a slip there moves the catch-up date out with it, and a buyer who needs certainty before 2028 has to negotiate 2030.

Linked stocks: 2344 TT, 2408 TT, MU US

Winbond pays US$1.12bn for NOR flash share it cannot build in time

Winbond Electronics will pay US$1.12bn in cash for all of Infineon Technologies' (IFX GR) NOR flash and F-RAM business, the largest cross-border acquisition in the history of Taiwan's memory industry. The board approved the share purchase agreement on 16 September and the deal is expected to close in 2H27. The acquired business will be renamed Spansion and run independently from the US.

Winbond already holds the largest share of the NOR market, so the deal adds share rather than fabs. Institutional forecasts cited in the reporting see little growth in its wafer starts this year, with the volume gain coming instead from a full ramp at 45nm and a shrink toward 25nm and 20nm that lifts bits per wafer. New capacity has to clear process shrink, yield ramp, qualification and customer design-in before it counts as supply, and buying share skips all four.

What Infineon is selling out of is the tightest line in memory. TrendForce expects contract prices for NOR flash of 256Mb and above to rise another 90% to 110% in 2H26, on top of a cumulative 100% to 120% increase in the first half. An AI server carries three to five times as much NOR flash as a conventional one, because every retimer chip on the board needs its own device to load microcode.

Linked stocks: 2344 TT, IFX GR, 2408 TT

Aspeed locks two years of ASE capacity through the end of 2028

Aspeed Technology (5274 TT), which supplies the remote server management chips that sit on server motherboards, has signed a two-year capacity purchase contract with ASE Technology (3711 TT). The board approved it on 14 September and the contract runs from 1 January 2027 to 31 December 2028. The last time Taiwanese chip designers locked long-term capacity at a packaging and test house was the pandemic shortage.

ASE has said it built 15 plants in a single year and still could not meet customer orders, and unit volume is only part of why. Institutional estimates compiled by Uanalyze put TSMC's (2330 TT) monthly CoWoS capacity, the advanced packaging that mounts an accelerator and its memory on one substrate, at about 180,000 wafers at the end of 2027 and hold 2028 at the same figure. Package sizes are meanwhile heading toward roughly 5.5 times reticle area, so each wafer yields fewer finished units even as chip demand grows.

Spending is moving to match. ASE's 2026 equipment capital spending is estimated to rise about 44%, with fan-out chip-on-substrate capacity up more than 300%. A chip designer that waits for that capacity to free up is queuing behind cloud providers moving their own accelerator designs into volume production from next year.

Linked stocks: 5274 TT, 3711 TT, 2330 TT

Chip substrate supply falls 51% short of demand by 2028

Goldman Sachs analyst Wang Kuan-chao, in a report on Taiwan's ABF substrate industry carried by Economic Daily News on 18 September, puts the supply shortfall in high-end chip substrates at 14% in 2H26, 34% in 2027 and 51% in 2028. ABF substrate, named for the Ajinomoto build-up film it is laminated from, is the board a large processor die is mounted on before the package reaches a motherboard.

The evidence he cites sits in the equipment rather than in the boards. Lead times on the vacuum laminators used to make ABF substrate have stretched to 2031. Customers are volunteering premiums to secure product, and contract liabilities, the cash a supplier holds against orders it has not yet shipped, have turned higher again.

The report separates the three Taiwanese suppliers by how much of their output is already committed. Unimicron (3037 TT) has more than 70% of its ABF shipments under long-term contract, which limits how much of any price move it can take. Nan Ya PCB (8046 TT) has more than 70% of revenue in lines that are not tied that way, and Kinsus Interconnect (3189 TT) has about 30% of ABF revenue with customers outside long-term contracts.

Linked stocks: 8046 TT, 3037 TT, 3189 TT

Intel can fill only half its CPU demand as the shortage reaches logic

Intel (INTC US) chief executive Lip-Bu Tan said the company can meet only about 50% of customer CPU demand, and that he apologizes to customer chief executives every day. Demand is rising as AI applications move from training into large-scale inference and agent workloads, and Tan said the shortage may persist.

He expects the memory squeeze in 2027 to be more severe than in 2026, with cost pressure reaching smartphones and notebooks. For PC brands including ASUS (2357 TT) and Acer (2353 TT), that turns the near-term question into how well they allocate scarce supply rather than how much they can sell.

Tan named advanced packaging a priority for the next five years, and said he is concerned that packaging substrate material comes from very few suppliers, two in Japan and two in Taiwan, and that large prepayments are needed to secure capacity from them. A chief executive describing prepayment as the price of a place in line is the same arrangement Apple accepted on memory and Aspeed signed with ASE, arrived at independently from the logic side.

Linked stocks: INTC US, 2357 TT, 2353 TT

TSMC returns to Longtan for three fabs completing from about 2030

Taiwan's National Development Council approved the draft Longtan expansion of the Hsinchu Science Park on 17 September, covering about 104 hectares at a development cost of about NT$95.6bn, and TSMC's (2330 TT) supply chain says the site is planned as three fabs for 1.4nm and below, with the first targeted for completion around 2030. TSMC walked away from Longtan in October 2023, when about 88% of the larger site then proposed was privately held land and local opposition was strong; the state has come back with a smaller footprint, and the fabs still face environmental review, land acquisition, water and power.

Linked stocks: 2330 TT