Japan Morning Briefing: What to Watch on May 4, 2026

Tokyo investors face a mixed start to the week as geopolitical tensions in the Middle East create an uncertain backdrop for Monday’s trading session. While Big Tech earnings momentum from the US provides some support, escalating US-Iran tensions over shipping routes could weigh on risk sentiment as markets open.

Wall Street delivered a mixed close on Friday, with the Nasdaq 100 leading gains at +0.96% to close at $674.15, driven by strong Big Tech earnings that rewarded companies for strategic spending on AI and cloud infrastructure. The S&P 500 edged higher by 0.28% to $720.65, while the Dow Jones slipped 0.33% to $495.02 as traditional industrials lagged technology names.

Currency markets remain a key focus for Tokyo exporters, though USD/JPY data is currently unavailable. Any yen weakness would typically benefit major exporters like Toyota and Sony, while a stronger yen could pressure margins for companies with significant overseas revenue exposure.

Today’s session will likely center on three key themes: geopolitical risk premium following Trump’s comments about US intervention in the Strait of Hormuz, technology sector momentum from positive US earnings, and energy market dynamics as oil shipping concerns persist. The healthcare sector may also draw attention following reports of rising costs impacting corporate benefit structures.

Investors should watch technology names that could benefit from the AI spending narrative, including SoftBank Group and Tokyo Electron. Energy-related stocks like INPEX may see volatility amid Middle East tensions, while exporters will trade based on currency movements. NISA investors might consider using any market weakness as an opportunity to add to technology positions, given the sector’s strong earnings trajectory.

With Golden Week holidays fresh in memory, trading volumes may remain subdued initially, but geopolitical developments could quickly change market dynamics throughout the session.

This briefing is for informational purposes only and does not constitute investment advice. Please consult with a qualified financial advisor before making investment decisions.