Markets spent the week wrestling with a two-front shock: renewed US-Iran hostilities in the Gulf and a jolt to US tech leadership from China's AI progress.
Oil was the dominant thread. Research groups flagged direct US-Iran exchanges of fire, Ukrainian strikes on Russian shadow-fleet tankers in the Black Sea, and Houthi threats to Red Sea passage — pushing Brent up ~4.6% to around $88. Front-end rates drifted higher as analysts raised the odds of a Fed hike in September, citing hawkish Fed commentary and sticky underlying inflation, even after June CPI surprised soft.
The equity story turned late in the week. The surprise release of a Chinese open-source agentic AI model triggered a Nasdaq drop and a >1.6% fall in the Philadelphia semi index, with commentary pointing to margin-call risk, compute-cost pressure on hyperscaler earnings, and rotation into healthcare, energy and banks. The published consensus shifted late in the week toward viewing US tech valuations as newly vulnerable, with several analysts arguing capital should look to cheaper international markets.