Japan Morning Briefing: What to Watch on September 28, 2026
Tokyo investors face a mixed start to the week as geopolitical tensions around Iran and oil markets create uncertainty, while Wall Street’s modest gains provide some support. The USD/JPY at ¥157.45 continues to favor Japanese exporters, though energy-related volatility could dominate early trading sentiment.
Wall Street Provides Modest Support Despite Geopolitical Headwinds
U.S. markets closed higher on Friday, with the Dow Jones leading gains at +0.94% to $517.49, while the S&P 500 (+0.54% to $771.35) and Nasdaq 100 (+0.46% to $744.50) posted more modest advances. However, oil markets are rebounding after reports that Trump rejected an Iran peace deal, adding fresh geopolitical risk premium to energy prices. This development could weigh on sentiment for Japanese importers and transportation stocks, while potentially benefiting domestic energy alternatives.
Yen Weakness Continues to Benefit Export Giants
The USD/JPY holding near ¥157.45 maintains favorable conditions for Japan’s export-heavy sectors. Toyota, Sony, and other multinational corporations should continue benefiting from the weak yen translation effects. For NISA investors, this environment supports the case for domestic exporters over foreign equity exposure. However, watch for any intervention signals from the Bank of Japan if the yen weakens further toward ¥158.
Energy Transition and Defense Stocks in Focus
Today’s key themes include energy security and defense spending, given the Iran tensions and broader Middle East developments. Japanese defense contractors and energy infrastructure companies could see increased interest. Additionally, reports of diesel price spikes making electric trucks more competitive in Europe may boost Japanese EV component manufacturers and battery technology stocks. Sectors to watch include automotive suppliers, defense contractors, and renewable energy infrastructure plays.
Monitor early trading for any spillover effects from weekend geopolitical developments, particularly in energy-sensitive sectors and defense-related names.
This briefing is for informational purposes only and does not constitute investment advice. Please consult with a qualified financial advisor before making investment decisions.