Middle East tensions escalated sharply overnight as attacks on Saudi energy infrastructure, including the shutdown of the Saudi East-West pipeline, and ongoing Houthi actions raised fears over Strait of Hormuz disruption, driving Brent crude up 2.53% to $108.35/bbl and WTI up 4.03% to $105.48/bbl — levels that immediately reignited global inflation concerns. Morgan Stanley responded by revising its central bank forecasts, now calling for two additional Fed hikes in 2026 and a further ECB deposit rate increase in December to 2.75%, while markets priced a roughly 90–94.5% probability of a 25bp Fed hike at the September 15–16 FOMC meeting. The US 10-year Treasury yield pushed above 5% — its highest level since approximately 2007 — compounding a risk-off tone that dragged the S&P 500 down 0.45%, the Nasdaq 0.78%, and the Euro Stoxx 50 down 1.02%, with the VIX edging up to 17.2. The sole outperforming sector in the US was Energy, with the XLE ETF gaining 2.17% as higher oil prices more than offset the hawkish yield backdrop for that cohort.
For Asia-Pacific markets opening Wednesday, the combination of a 5%-plus US 10-year yield, surging energy import costs, and a broadly defensive Wall Street session sets a cautious tone, though the ASX 200 showed relative resilience in Tuesday's local session, closing up a modest 0.10% to 8,749.9 with Healthcare and Financials providing support. The AUD/USD edged lower to 0.7134, a marginal headwind for offshore earners but broadly stable, while iron ore slipped 0.48% to $97.55/t amid reports of Chinese state-backed buyers directing mills to hold Rio Tinto orders during contract negotiations. Crypto markets added to the risk-off signal — Bitcoin fell 3.50% to $75,430 and Ethereum dropped 4.86% to $2,392 — while the KOSPI's sharp 3.26% selloff and a jump in the Nikkei VIX to 31.06 (+4.23%) highlight pockets of acute stress in the region that investors should monitor closely.