Weekly Market Summary

Weekly Market Notes · July 12–19, 2026 Weekly Market Intelligence Issue Date · July 19, 2026 | Compiled by Albert Tang | For Informational Use Only ℹ️ NOT FOR FINANCIAL ADVICE — FOR INFORMATIONAL AND ENTERTAINMENT USE ONLY Market Snapshot (Week Close) Index / Asset Price Weekly Change S&P 500 7,457.69 ▼ 1.6% WK DOW 52,146.42 ▼ 0.9% WK NASDAQ 25,520.24 ▼ 2.9% WK Brent Crude ~$88.10 ▲ ~12% WK · IRAN SURGE 10-Yr Yield ~4.55% → STEADY Bitcoin ~$62,942 ▼ ~2% WK Weekly Overview · July 12–19, 2026 Markets snapped a two-week winning streak and posted their first losing week in three, as a brutal semiconductor rout collided with a fresh oil shock out of the Middle East. The trigger was a "DeepSeek 2.0" moment: Chinese startup Moonshot unveiled Kimi K3, a 2.8-trillion-parameter open model that rivaled top US systems, sending chip stocks into free fall on fears that the AI infrastructure spending boom may cool. The Philadelphia Semiconductor Index tumbled into a bear market — its worst week in over 15 months — dragging the Nasdaq down 2.9%. At the same time, escalating US-Iran hostilities choked the Strait of Hormuz, sending Brent crude surging roughly 12% on the week to near $88. A bright spot: June CPI came in sharply cooler, and Q2 bank earnings blew past expectations, led by a blockbuster JPMorgan report. The cross-currents left investors weighing cooling inflation against war-driven energy costs and cracks in the AI trade. Estimated reading time: 7–8 minutes Headline 01 of 05 · Chip Stocks Crash — China's Kimi K3 Sparks a "DeepSeek 2.0" Rout Semiconductors · Artificial Intelligence · Big Tech · Market Selloff The dominant story of the week was a violent selloff in semiconductor and AI-related shares, triggered on Friday, July 17, when Chinese startup Moonshot AI unveiled Kimi K3 — a 2.8-trillion-parameter model that became the largest open-weight AI system in the world. On benchmark tests it reportedly matched or beat several leading US models, trailing only Anthropic's…