--- title: "Amkor breaks ground in Korea as Nvidia and other customers pay over $3 billion to reserve capacity" description: "Nvidia's multi-year commitments to Amkor now pass $3 billion and are paid partly in advance, with a dozen other customers also paying to reserve assembly space. The 57% share drawdown priced a broken order book; what is actually open is whether Amkor holds its new margin while shrinking a third of its revenue on purpose." publisher: "The Inference" section: "Chips" published: 2026-11-14T14:06:15.307Z modified: 2026-11-14T14:06:15.307Z canonical: https://theinference.org/article/amkor-breaks-ground-in-korea-as-nvidia-and-other-customers-pay-over-3-billion-to-reserve-capacity language: en keywords: "Chips, Semiconductors, Advanced Packaging, Nvidia, South Korea" --- # Amkor breaks ground in Korea as Nvidia and other customers pay over $3 billion to reserve capacity > Nvidia's multi-year commitments to Amkor now pass $3 billion and are paid partly in advance, with a dozen other customers also paying to reserve assembly space. The 57% share drawdown priced a broken order book; what is actually open is whether Amkor holds its new margin while shrinking a third of its revenue on purpose. [Amkor](https://theinference.org/markets/companies/amkor-technology), the outsourced chip packaging and test house, broke ground on October 29 on a new building at its Gwangju campus in South Korea, and the output is already spoken for [1][2]. The building sits inside [a $1.3 billion agreement with Nvidia](https://iconnect007.com/article/152348/amkor-breaks-ground-on-expansion-in-gwangju/152345/milaero), the AI chip designer, part of [multi-year commitments that now pass $3 billion across Korea and Arizona](https://theinference.org/article/nvidia-lifts-amkor-agreements-to-3-billion-on-commitments-it-can-still-change) [1][2]. [Nvidia](https://theinference.org/markets/companies/nvidia) prepays under those deals, and since 2025 a dozen other customers have also paid in advance to hold assembly space [2][3]. Demand at this company is settled in cash. The open risk is delivery, and this past week's sellers were largely aiming at the wrong one. ## Packaging is where AI compute becomes physical An AI accelerator is not one chip. It is compute silicon and stacked memory wired together by advanced packaging: wafer bumping, 2.5D through-silicon vias and high-density fan-out, the processes Amkor runs at Gwangju and at its Songdo research campus [1][2]. Nvidia designs the accelerators and builds none of this; it reserves the lines and pays cash to hold them. The Nvidia executive at the groundbreaking runs co-packaged optics manufacturing, the emerging step of fusing optical links into the package itself [1]. That is how a factory can be fully booked before it exists. ![Two people in business clothes stand in a chip packaging cleanroom corridor, one gesturing at a monitor and microscope station, with wafer trays on a steel cart and cleanroom doors marked Module 5 behind them.](https://storage.googleapis.com/theinference-public/img/523cbdfe6211c8fa.jpg) *Secretary of State Antony Blinken tours Amkor's packaging and test floor in Manila in March 2024, at a microscope and inspection station beside the cleanroom doors. Amkor runs the same bumping, assembly and test steps at Gwangju and Songdo. (Chuck Kennedy, U.S. Department of State)* ## Communications shrank on purpose while the AI lines grew [Third-quarter revenue was $1.99 billion](https://flashfinanceusa.com/stock/AMKR/8-k-filings/0001047127-26-000049/), barely above a year earlier, and the market read the stall as a rupture in the AI packaging story [3][4]. The stall came from mix: communications, mostly smartphone system-in-package work, fell 28% as Amkor moved it from Korea to Vietnam to free cleanroom for higher-value packaging [5]. Computing and automotive and industrial each grew 37% [5]. Net income rose by half to $191 million [4]. Gross margin reached 18.3%, four points above a year earlier [4][5]. *Chart: **Computing and car chips grew 37% while communications fell 28%** Bar chart of Amkor's third-quarter 2026 revenue growth by end market: communications down 28%, computing up 37%, automotive and industrial up 37%, year on year.* *Percent change in revenue, Q3 2026 versus Q3 2025, by end market, per Zacks (via TradingView) from company reporting. [5]* *Chart: **Gross margin climbed from its 11.9% trough to 18.3%** Line chart of Amkor's gross margin by quarter: 15.1% in Q4 2024, 11.9% in Q1 2025, 12.0%, 14.3%, 16.7%, 14.2%, 16.8% and 18.3% in Q3 2026.* *Gross margin as a percent of revenue, by quarter, from Amkor's SEC filings (source 7). The Q3 2026 figure of 18.3% is four points above the same quarter a year earlier. [7]* ## The customer funds the build, and the customer just changed chief executives This year's [capital spending is set near $2.5 billion](https://theinference.org/article/amkor-s-2-5-3-billion-ai-packaging-bet-partly-prepaid-by-nvidia-gets-its-first-test-october-26) while the top line has stopped growing, and free cash flow is negative [4][6]. Quarter by quarter, plant spending has climbed past half a billion dollars [7]. *Chart: **Plant spending has doubled while revenue flattened** Line chart of Amkor's quarterly revenue and capital spending from Q4 2024 to Q3 2026, showing capital spending accelerating to $0.548 billion in Q3 2026 while revenue stays near $2 billion.* *Quarterly revenue and capital spending, in $ billions, from Amkor's SEC filings (source 7), for each quarter from Q4 2024 through Q3 2026. Capital spending is the quarterly capital expenditure line, shown as a positive outlay. [7]* Insiders sold nearly $1 billion of Amkor stock over the past year and bought none [6]. The shares were cut about 57% from May to early November [3]. They jumped a tenth on November 11, then gave the move back across the two sessions after Nvidia founder [Jensen Huang](https://theinference.org/markets/people/jensen-huang) resigned and finance chief [Colette Kress](https://theinference.org/markets/people/colette-kress) was named interim chief executive [3][8][9][10]. [Nvidia's board says it expects customer commitments and the product roadmap to continue without interruption](https://www.npr.org/2026/11/13/nx-s1-6038889/colette-kress-becomes-nvidias-interim-ceo-after-jensen-huang-resigns), and that assurance is now load-bearing for Amkor's capacity book [10]. ## Demand is booked; delivery is the open risk Nothing in the record shows the AI packaging story broken. What is unproven is execution: holding that margin while a third of revenue shrinks on purpose, ramping Vietnam, and finishing [a building whose size, cost and completion date Amkor has not disclosed](https://evertiq.com/design/2026-11-11-amkor-breaks-ground-on-new-building-in-south-korea) [2][5]. The market spent the week watching the quarter. The money is in the book, and the builder that turns reserved concrete into delivered compute is doing the work AI still needs. That work is Amkor's to lose. ## Takeaway Amkor's output is sold and part-paid before the concrete sets; the open risk is whether it holds an 18.3% gross margin while shedding a third of revenue by design. ## Sources 1. [I-Connect007, Amkor Breaks Ground on Expansion in Gwangju, November 2026](https://iconnect007.com/article/152348/amkor-breaks-ground-on-expansion-in-gwangju/152345/milaero) 2. [Evertiq, Amkor breaks ground on new building in South Korea, 11 November 2026](https://evertiq.com/design/2026-11-11-amkor-breaks-ground-on-new-building-in-south-korea) 3. [Ainvest, Amkor Jumps 10% Off a 57% Rout: the $46 Line Between a Bounce and a Bottom, 11 November 2026](https://www.ainvest.com/news/amkor-jumps-10-57-rout-46-line-bounce-bottom-2611/) 4. [Flash Finance US, AI brief of Amkor 8-K: Q3 2026 EPS rises to $0.76 as net sales hold near $1.99 billion, 7 November 2026 (filing dated 26 October 2026)](https://flashfinanceusa.com/stock/AMKR/8-k-filings/0001047127-26-000049/) 5. [Zacks via TradingView, Amkor's Communications Business Weakens: Can a Recovery Take Hold?, November 2026](https://www.tradingview.com/news/zacks:f5bd817cd094b:0-amkor-s-communications-business-weakens-can-a-recovery-take-hold/) 6. [GuruFocus, Amkor Technology (AMKR) Shares Surge 10.5%: What GF Score of 86 Tells Investors, 11 November 2026](https://www.gurufocus.com/news/9193680/amkor-technology-inc-amkr-shares-surge-105-what-gf-score-of-86-tells-investors) 7. [Amkor Technology, quarterly figures from its SEC filings, retrieved 14 November 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001047127) 8. [StockStory via The Globe and Mail, FormFactor, Amkor, Kulicke and Soffa, and Applied Optoelectronics shares plummet, what you need to know, 12 November 2026](https://www.theglobeandmail.com/investing/markets/stocks/FORM/pressreleases/8804353/formfactor-amkor-kulicke-and-soffa-and-applied-optoelectronics-shares-plummet-what-you-need-to-know/) 9. [Trefis via Yahoo Finance, Why Did Texas Instruments Stock Beat NXP Over Five Years?, 13 November 2026](https://finance.yahoo.com/markets/stocks/articles/why-did-texas-instruments-stock-010308968.html) 10. [NPR, Colette Kress becomes Nvidia's interim CEO after Jensen Huang resigns, 13 November 2026](https://www.npr.org/2026/11/13/nx-s1-6038889/colette-kress-becomes-nvidias-interim-ceo-after-jensen-huang-resigns) --- Amkor breaks ground in Korea as Nvidia and other customers pay over $3 billion to reserve capacity — The Inference. Canonical: https://theinference.org/article/amkor-breaks-ground-in-korea-as-nvidia-and-other-customers-pay-over-3-billion-to-reserve-capacity