WS #12848

The dominant narrative in this window is a broad semiconductor selloff driven by reports that China has begun mass-producing domestic deep ultraviolet (DUV) chip fabrication tools, which could ease global production bottlenecks and erode chipmaker margins. This is corroborated by multiple sources showing sharp declines in semiconductor stocks: AMD -8.04%, NVDA -5.25%, INTC -7.89%, ASML -7.04%, LRCX -7.19%, AMAT -5.99%, MU -5.36%, MRVL -4.08%, SNDK -11.65%. The selloff is being characterized as a potential 'AI bubble popping' by some commentators. This development counters the prevailing tech rally narrative and represents a significant escalation in competitive pressure on US chipmakers from Chinese domestic production. Meanwhile, Apple has officially surpassed Nvidia to become the world's most valuable company, with a market cap of $4.92 trillion vs Nvidia's $4.75 trillion, a MAG7 carve-out that contradicts the broader semiconductor weakness. On the geopolitical front, Houthi drone attacks on Saudi oil infrastructure continue, with Saudi ARAMCO sites burning for over 48 hours, keeping energy markets on edge. Macquarie sees oil surplus risk on a potential US-Iran deal before midterms, which could counter the bullish oil thesis from supply disruptions. Italy approved a temporary diesel tax cut to cushion energy price impacts. The Fed rate decision remains the dominant macro event for the week, with Polymarket odds showing no change expected. Other notable items: Microsoft unveiled its first cybersecurity AI model (MAI-Cyber-1-Flash), Moonshot AI released Kimi K3 open weights, and Ares Management is in talks to acquire Leonard Green & Partners. The US military redirected 17 vessels through the Strait of Hormuz amid regional tensions. Wildfires in France and Spain are causing evacuations but have limited direct market impact. The narrative arc for the semiconductor selloff is ESCALATING, while the US-Iran ceasefire narrative remains STABLE with no material de-escalation.