Asian markets tumble as US-Iran fighting lifts oil and bond yields - Reuters

Asian equities tumbled as renewed US-Iran hostilities rattled investor sentiment, prompting a broad risk-off move across regional bourses. Concurrently, crude oil prices climbed on concerns over potential supply disruptions in the Middle East. Perhaps more striking was the rise in government bond yields — a move that, while less typical during geopolitical crises, signals that markets are weighing inflationary pressures more heavily than immediate safe-haven demand.

Higher oil costs are especially meaningful for import-dependent Asian economies, as they can push inflation upward and pressure consumption and corporate margins. The uptick in yields compounds the challenge: it reflects falling bond prices and a market recalibrating its expectations for monetary policy and long-run growth. In this environment, equity valuations face a dual squeeze from rising input costs and higher discount rates.

What to watch is the trajectory of diplomatic efforts and the potential for further escalation. Energy supply data, currency stability in the region, and remarks from central banks will offer clues about how enduring these market stress signals might be. Until the conflict’s direction clarifies, volatility is likely to remain elevated.