--- title: "Amkor's 10-day slide to $41.82 prices Nvidia's $1.5 billion as a prepayment, not committed revenue" description: "Ten straight lower closes have run into a best-ever second quarter, a Nvidia prepayment and a bigger Arizona campus plan. The gap between Amkor's filings and its share price sits in the footnotes, and third-quarter results on October 26 will price it." publisher: "The Inference" section: "Silicon" published: 2026-10-17T16:13:38.211Z modified: 2026-10-17T16:13:38.211Z canonical: https://theinference.org/article/amkor-s-10-day-slide-to-41-82-prices-nvidia-s-1-5-billion-as-a-prepayment-not-committed-revenue language: en keywords: "Semiconductors, Markets, Nvidia, Amkor, Earnings" --- # Amkor's 10-day slide to $41.82 prices Nvidia's $1.5 billion as a prepayment, not committed revenue > Ten straight lower closes have run into a best-ever second quarter, a Nvidia prepayment and a bigger Arizona campus plan. The gap between Amkor's filings and its share price sits in the footnotes, and third-quarter results on October 26 will price it. [Amkor Technology](https://theinference.org/markets/companies/amkor-technology), which assembles and tests other companies' chips, closed at $41.82 on Friday, its tenth straight lower session [1]. Ten falling sessions have erased about $3.5 billion of market value [1]. The S&P 500 slipped 0.8% over the same stretch [1], so the repricing is Amkor's own, and the footnotes in its filings are the likeliest reason. ## The boom is in the filings Amkor's June quarter was its best second quarter on record, $1.9 billion in sales with net income more than tripling [2]. Management [guides the September quarter](https://www.rackline.news/earnings/report/10y238l) to $1.95–2.05 billion in sales, an 18.5–19.5% gross margin and $0.72–0.82 in earnings per share [2]. Computing, the data-center end market, is guided to grow about 30% from the prior quarter on AI demand and a server-processor packaging ramp [2]. The deal flow matches. In July, [a multiyear Nvidia packaging partnership](https://www.techrepublic.com/article/news-nvidia-amkor-us-ai-chip-packaging-deal/) lifted Amkor's shares 17% in after-hours trading [3]. June brought a ten-year packaging framework with [TSMC](https://theinference.org/markets/companies/tsmc), the world's largest contract chipmaker [2]. September [raised the plan for the Arizona packaging campus to about $12 billion](https://pulse2.com/amkor-technology-expands-arizona-advanced-packaging-investment-to-12-billion/) [4]. *Chart: **Q2 2026 was Amkor's best second quarter, not its best quarter** Line chart of Amkor quarterly net sales from Q3 2023 to Q2 2026; Q3 2025 remains the series peak while Q2 2026 marks the best second quarter* *Quarterly net sales as reported in SEC filings, US$ billions; the series peak remains Q3 2025. [5]* ## Every boom headline has a footnote Two weeks of selling suggest investors have read the footnotes. [Nvidia](https://theinference.org/markets/companies/nvidia)'s $1.5 billion is a prepayment, [expected from 2027 and returned as US services](https://theinference.org/article/amkor-s-2-5-3-billion-ai-packaging-bet-partly-prepaid-by-nvidia-gets-its-first-test-october-26) rather than committed revenue [2]. The TSMC framework is capacity and ecosystem, not named wafer dollars [2]. The earnings release's own caution flags [the absence of backlog or short-term customer commitments](https://theinference.org/article/acm-research-s-2-5-billion-backlog-comes-with-fine-print-and-an-october-28-test) [2]. The customer mix adds weight. Smartphones and tablets are still the largest end market at 42% of sales [2], and Android volumes fell 20% last quarter on memory-supply shortages [2]. *Chart: **Smartphones are still Amkor's largest end market** Pie chart of Amkor's Q2 2026 sales by end market, with communications the largest slice* *Share of Q2 2026 net sales by end market, as reported. [2]* The cash ledger leans the same way. Amkor guides 2026 capital spending to $2.5–3.0 billion [2]. First-half operating cash flow was $382 million [2]. [Insiders sold $992 million of stock](https://www.gurufocus.com/news/9128470/a-look-at-amkor-technology-inc-amkr-after-51-decline-gf-value-3569-vs-price-4182) over the past year with no purchases reported [6], a total swollen by the founding Kim family's February share sale [2]. Even after the fall, GuruFocus still calls the shares 17% overvalued [6]. ## The bull case has evidence too [ChipMOS](https://theinference.org/markets/companies/chipmos-technologies), a Taiwanese packaging peer, [posted record third-quarter revenue on October 8](https://finance.yahoo.com/markets/stocks/articles/chipmos-reports-record-high-quarterly-100000838.html) as AI demand outran memory supply [7]. Its shares still fell 4.8% on Friday [8]. [Trefis](https://www.trefis.com/stock/amkr/articles/619136/amkor-technology-stock-extends-a-10-day-losing-streak-to-a-25-loss/2026-10-17), which tallied Amkor's streak, notes the company's revenue growth sits above its sector median and its earnings multiple below it, and argues the business looks sturdier than the stock [1]. Retail traders are picking the other side of the insiders' exits. On [the forum Stocktwits](https://www.stocktwits.com/symbol/AMKR), 6,404 accounts follow the ticker, the sentiment gauge reads bullish, and the most-liked recent posts are buying the dip [9]. Amkor reports third-quarter results on October 26 [2]. If Computing grows near its guided pace and gross margin lands at the top of the guided range, this slide was the market being early. If it misses, the discount has further to run. Nvidia paying years ahead says the buildout is real; the unfinished step is turning committed capacity into collected cash, and the results will measure it. ## Takeaway Amkor's record June quarter, Nvidia prepayment and $12B Arizona plan are real, but the filings stop short of committed revenue; October 26 results decide whether the ten-day slide was the market being early. ## Sources 1. [Trefis, 'Amkor Technology Stock Extends A 10-Day Losing Streak To A 25% Loss', 17 October 2026](https://www.trefis.com/stock/amkr/articles/619136/amkor-technology-stock-extends-a-10-day-losing-streak-to-a-25-loss/2026-10-17) 2. [Rackline, 'Amkor: Net sales up 26% to $1.90bn, with a $1.95bn-2.05bn third-quarter guide and 2026 capex held at $2.5bn-3.0bn' (SEC Ex. 99.1 and Q2 2026 earnings call), 12 October 2026](https://www.rackline.news/earnings/report/10y238l) 3. [TechRepublic, 'Nvidia Signs $1.5B Deal to Expand US AI Chip Packaging', 24 July 2026](https://www.techrepublic.com/article/news-nvidia-amkor-us-ai-chip-packaging-deal/) 4. [Pulse 2.0, 'Amkor Technology Expands Arizona Advanced Packaging Investment To $12 Billion', 9 September 2026](https://pulse2.com/amkor-technology-expands-arizona-advanced-packaging-investment-to-12-billion/) 5. [Amkor Technology, quarterly net sales from its SEC filings, retrieved 17 October 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001047127) 6. [GuruFocus, 'A Look at Amkor Technology Inc (AMKR) After 5.1% Decline: GF Value $35.69 vs Price $41.82', 16 October 2026](https://www.gurufocus.com/news/9128470/a-look-at-amkor-technology-inc-amkr-after-51-decline-gf-value-3569-vs-price-4182) 7. [ChipMOS press release via PR Newswire/Yahoo Finance, 'ChipMOS Reports Record High Quarterly Revenue; 36.7% YoY Increase in 3Q26 Revenue', 8 October 2026](https://finance.yahoo.com/markets/stocks/articles/chipmos-reports-record-high-quarterly-100000838.html) 8. [ad-hoc-news.de, 'ChipMOS-Aktie fällt 4,79 Prozent auf 55,50 Euro', 16 October 2026](https://www.ad-hoc-news.de/boerse/news/nebenwerte/chipmos-aktie-faellt-4-79-prozent-auf-55-50-euro/70342969) 9. [Stocktwits, AMKR symbol page (price, watchers, sentiment, earnings date), retrieved 17 October 2026](https://www.stocktwits.com/symbol/AMKR) --- Amkor's 10-day slide to $41.82 prices Nvidia's $1.5 billion as a prepayment, not committed revenue — The Inference. Canonical: https://theinference.org/article/amkor-s-10-day-slide-to-41-82-prices-nvidia-s-1-5-billion-as-a-prepayment-not-committed-revenue