Chip Fears and an Oil Truce Rattle Markets on October 13, 2026

On October 13, 2026, the clearest signal of the day came from Asia's memory-chip makers: SK Hynix shares slid 15% and were described by traders as oversold near a key support level, while Samsung and Micron also fell, after China's state-backed ChangXin Memory Technologies (CXMT) narrowed the technology gap with the three companies that have dominated the memory-chip market for years. The mechanism was straightforward: memory chips, the components that store data in phones, computers and AI servers, have commanded unusually high prices over the past year because demand for AI data centers outstripped supply. A faster-than-expected Chinese rival threatens that pricing power, so investors marked down the incumbents even though Micron and Sandisk separately said the broader memory boom still has room to run. That same component shortage showed up on the demand side too. Global smartphone shipment data released during the session showed the worst third quarter in 14 years, as handset makers said rising memory-chip costs were squeezing their margins and holding back new models. The two stories were two sides of the same price: the scarcity that lifted memory-maker profits all year was now visibly hurting the companies that buy those chips. Oil provided the day's other major move. Crude prices fell after President Trump said the Ukraine war had an "energy ceasefire" in place, which traders read as lowering the risk of supply disruption from the conflict. Cheaper oil helped lift European stocks, which rose for the session with banks leading gains, even though Riyadh's airport was attacked during the period and would ordinarily have added a Middle East risk premium. Gold held near $4,200 and the dollar stayed close to an 18-month high, suggesting traders were still hedging against the chance the ceasefire does not hold, even as equity markets priced in the more optimistic reading. In the US, the Nasdaq 100 broke below a technical support level that chart-watchers had been citing for weeks, a sign the momentum behind this year's AI-driven rally was fading even as individual AI deals kept coming. Amazon was reported in talks to buy AI video startup Decart for $7 billion, and Meta shares rose after launching new Muse Wonder AI models. The split, a weakening index alongside continued single-stock AI enthusiasm, pointed to a market narrowing its bets rather than abandoning them. Elsewhere, Volkswagen shares rose even though the company reported third-quarter deliveries fell 14.3% on China weakness, suggesting investors had already priced in the slowdown. Starbucks shares gave back part of an earlier jump after the company denied rumors it was in takeover talks with Chipotle. Truist cut price targets across three regulated utilities, citing policy risk, and Mizuho split its energy and insurance coverage into winners and losers, both signs analysts were differentiating within sectors rather than making blanket calls. The Buy List 2026 model portfolio, run with €120,000 invested, closed the session worth €128,257, a total return of 6.88% (6.20% on price alone, the gap made up of dividend income). The spread inside the portfolio mirrored the divided market: MicroStrategy was up 62.72% and GameStop up 49.58%, while Vonovia was down 31.86% and Novo Nordisk down 15.68%. ASML, the chip-equipment maker, was up a modest 5.12%, suggesting investors were still drawing a line between equipment suppliers and the memory makers caught in the China competition story. What remained unresolved going into the next session was whether the China memory-chip threat or the Ukraine ceasefire would prove durable. TSMC was due to report earnings expected to mark its sixth straight quarter of record profit on the AI boom, a result that would show whether chipmakers' pricing power was still intact despite CXMT's progress. Inflation data due later in October would help determine whether the dollar's climb toward its 18-month high continues. And Microsoft's October 28 earnings, where Azure cloud growth needs to stay above 40% to meet expectations, would be the next test of whether the AI capital-expenditure cycle still justifies the valuations that the Nasdaq 100's break below support had just begun to question.