[International Finance Briefing] Positive Signals in Trump-Iran Talks... Brent Crude Plunges 7.63%, S&P 500 Falls 0.51%

The key event: US-Iran negotiations showed positive signals, with President Trump and the Iranian government indicating openness to a diplomatic resolution of the Middle East conflict, easing geopolitical tensions. According to a June 3 report from the International Finance Center, Secretary of State Marco Rubio stated the US retains military response capability but that Trump prefers diplomacy, while Iranian President Pezeshkian said Supreme Leader Khamenei granted the government more authority to pursue peace talks. Brent crude oil plunged 7.63% on the de-escalation hopes, and US Treasury yields declined, though the S&P 500 fell 0.51% on weakness in technology stocks. The report matters because it signals potential easing of Middle East supply-risk premiums in oil markets, even as equities face separate headwinds. Ahead of US midterm elections, markets are also weighing the possibility of Democratic control of Congress, AI investment profitability concerns, and fiscal burden as key variables. What to watch next: concrete progress in US-Iran talks, oil price direction, and whether tech-led equity weakness persists.