Global equity leadership has changed markedly in 2026. Investors focused exclusively on US technology shares or domestic Indian equities have missed one of the year’s strongest developed-market rallies: Japan.
By late July, the Nikkei 225 had gained about 29% for the year, putting it ahead of major US, European and Indian benchmarks in local-currency price terms. The exact ranking varies with the index, measurement date, dividends and currency conversion, but Japan’s outperformance has been difficult to ignore.
The rally is not resting on a single narrative. Japanese companies have benefited from the global artificial-intelligence investment cycle, particularly through semiconductor equipment, precision manufacturing, automation and data-centre supply chains. At the same time, continuing corporate-governance reform has pushed management teams to pay greater attention to capital efficiency, shareholder returns and underused balance sheets.
The US remains strong—but concentrated
US equities have continued to advance, supported by earnings growth among large-cap technology companies and sustained spending on AI infrastructure. Yet valuations remain demanding and index returns are still heavily influenced by a relatively small group of companies.
That concentration can make the headline index appear more broadly healthy than the underlying market. It also means that disappointments in earnings, capital spending or AI monetisation can carry disproportionate consequences.
The yield-curve reality check
The equity rally is unfolding alongside renewed tension in bond markets. Higher and more volatile energy prices following conflict in the Middle East have revived near-term inflation risk, lifted parts of the yield curve and reduced confidence in rapid rate cuts.
At their latest July meetings, the US Federal Reserve, European Central Bank and Bank of England all held policy rates steady. The BoE explicitly described the Middle East conflict as a negative supply shock and linked higher energy costs to inflation and tighter financial conditions. Brent crude traded near $84 per barrel at the end of July—well below some earlier conflict-driven peaks, but still high enough to keep policymakers cautious.
What it means for investors
Global diversification is not a neutral exercise. A market-cap-weighted global portfolio remains heavily exposed to the US, while Japan’s rally introduces a different mix of currency, governance, manufacturing and technology-cycle risks.
Investors therefore need to separate three questions: where earnings are growing, where valuations already price in that growth, and where inflation or interest-rate expectations could change the discount rate.
Japan and the US are both benefiting from the technology and AI cycle, but they are entering it from different valuation and corporate-governance starting points. Meanwhile, energy-driven inflation remains the macro variable capable of unsettling both equity and bond markets.