The dominant macro driver overnight was a sharp re-escalation of US-Iran tensions, with President Trump declaring the June interim peace deal 'over' after Iranian forces attacked tankers near the Strait of Hormuz and struck US bases in the Gulf. Brent crude surged 5.2% to $78.02/bbl and WTI rose 4.4% to $73.52, though both benchmarks pulled back from intraday highs near +9% after Trump subsequently ruled out full-scale war. Hawkish FOMC minutes — the first under new Fed Chair Kevin Warsh — confirmed the committee sees no near-term case for cuts, with a few members having considered a June hike; the 10-year Treasury yield rose 7bp to 4.55% and the 30-year breached 5.05%. The RBNZ delivered a surprise consensus rate hike of 25bp to 2.50%, its first tightening move this cycle, adding to a global picture of central banks leaning restrictive amid energy-driven inflation resurgence.
For Asia-Pacific markets opening Thursday, the implications are meaningfully negative across several channels: higher oil prices represent a direct inflation and current-account headwind for energy-importing economies including Japan and South Korea, while the VIX jumping 4.77% to 16.90 and the Nikkei VIX spiking an alarming 47% to 43.65 signal genuine stress in regional risk appetite. The AI and semiconductor sell-off — triggered by Samsung's disappointing AI revenue outlook and DeepSeek's announcement of a proprietary inference chip — hit Korean and Japanese tech-exposed indices hard, with the KOSPI plunging 5.35% and the Nikkei down 2.11%. The ASX 200 closed relatively defensively at -0.21%, but ASX energy names face a complex read: higher oil is a revenue tailwind for producers, yet renewed inflation risk could harden the RBA's resolve to hold rates at 4.35% into Q3, pressuring rate-sensitive sectors including REITs and banks. China's June CPI and PPI prints, due Thursday morning, are the next critical data point for materials-exposed ASX stocks.