Sunday, October 11

Houthi attacks on Saudi targets—including Riyadh and Dammam airports and Aramco facilities—briefly pushed Brent to $105.63 before it fell 1.7% to $102.99. The reversal points to a market adding a geopolitical risk premium while stopping short of pricing a prolonged outage. Gold’s rise above $4,200 for a third straight session showed that the threat still mattered beyond crude. Saudi and Iranian foreign ministers also held their first known talks since the escalation, an indication that diplomatic channels remain open even as the risk of a wider conflict rises.

The Ukraine picture offered little offset: President Trump said Russia and Ukraine had agreed to an immediate energy ceasefire, but Ukrainian reports of a strike on a Kharkiv power facility within hours—and no public Kremlin confirmation—left the agreement’s credibility in doubt. Energy and haven assets remain exposed to developments on both fronts.

Semiconductor shares led the early U.S. equity weakness: Intel fell about 7%, AMD 6% and Nvidia 3%, while the semiconductor ETF dropped roughly 6%, more than the broader Nasdaq-100-tracking fund. The move was characterized as a reversal of crowded AI positions, not evidence of an immediate collapse in demand; AMD’s roughly 127% year-to-date gain left it especially vulnerable to profit-taking.

At the same time, AMD CEO Lisa Su met Samsung and SK Hynix executives in South Korea about AI-chip cooperation. Samsung was named as the primary supplier of HBM4 for AMD’s next-generation accelerator, with a broader SK Hynix partnership also in focus. Micron’s $600 million, five-year settlement with Netlist over memory-related patent litigation adds a separate cost to the sector’s growth story. The contrast is clear: near-term share prices are sensitive to crowded positioning, while competition for AI memory and infrastructure continues.

Markets entered the week assigning a 16.5% probability to an October Fed hike and a 74.5% probability of at least a quarter-point increase by December. With September CPI due later in the week, that pricing makes the report more consequential: another firm inflation signal could reinforce the view that rates may need to rise again, a possibility St. Louis Fed President James Bullard raised last week.

Treasury futures edged higher, but the cash market was closed; the 10-year yield had approached 5.4% the prior week, its highest since 2002. The Treasury’s plan to double long-end bond buybacks to $4 billion per operation is intended to improve market functioning, yet some traders see potential for added unease in the long end. The tension is between tighter-policy expectations and questions about whether the bond market can absorb them smoothly.