Asian Markets Mostly Higher on US-Iran Diplomatic Optimism; Wall Street Gives Mixed Cues

Asian stock markets traded mostly higher on Wednesday, September 23, 2026, buoyed by optimism over a potential diplomatic resolution to the US-Iran conflict. The gains followed a three-hour meeting between US and Iranian officials on the sidelines of the UN gathering, according to RTTNews. The meeting marked a rare direct engagement between the two nations, fueling investor hopes for de-escalation in the Middle East. Despite the positive sentiment in Asia, Wall Street delivered mixed cues overnight, offering little directional conviction. Traders are monitoring the situation for further signals on whether diplomatic talks will yield concrete progress. No specific index levels or percentage moves were cited in the report.