Japan equities strengthen as higher yields and yen weakness support returns

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Japan equities strengthen on yields

Highlights

MSCI Japan Index outperformed MSCI Kokusai Index by 16.4% since early 2025, supported by rising 10-year JGB yield at 2.94% and persistent yen weakness.
Japanese financials, comprising approximately 19% of the MSCI Japan Index, benefited from higher net interest margins after BOJ ended negative rates and yield curve control in 2024.
MSCI data shows strong equity returns when yen is weak and yields rise, but Japan's price-to-book discount and profitability lag other developed markets, despite return on equity improving to 12%.

Macro drivers reshape Japan allocation case

As outlined by MSCI, the MSCI Japan Index has outperformed the MSCI Kokusai Index by 16.4% since the start of 2025, alongside a sharp rise in Japanese government bond yields and continued yen weakness.

The 10-year JGB yield stands at 2.94% as of August 2026, its highest level since September 1996, while the Bank of Japan policy rate is at 1.25%, the highest since 1995. MSCI says higher yields in Japan have historically coincided with stronger U.S. dollar equity returns, suggesting that rate normalization is reflecting firmer nominal growth, stronger pricing power and better earnings conditions, especially for financial stocks.

Japanese financials account for about 19% of the index and have been among the main beneficiaries of wider net interest margins as rates rise. The broader backdrop has also shifted since the Bank of Japan ended negative rates and abandoned yield curve control in 2024, bringing to a close roughly three decades of near-zero policy settings.

MSCI's historical analysis shows a fairly monotonic relationship between changes in the 10-year JGB yield and Japanese equity returns in U.S. dollar terms. Monthly returns were weakest when yields fell the most and strongest when yields rose the most, reinforcing the view that the current rate environment is supportive for equities.

Index choice highlights sector and currency trade-offs

For investors seeking tactical exposure, MSCI says the main decision is increasingly not whether to own Japan, but which index to use to express that view. MSCI Japan tracked MSCI Kokusai relatively closely between 2001 and 2008, then underperformed cumulatively by 58.4% from December 2008 until a low point in January 2025, before reversing course and outperforming by 16.4% since then.

Currency remains a major factor because Japanese companies derive 56.8% of revenue from outside Japan, compared with 48.2% for the MSCI Kokusai Index using MSCI Economic Exposure data. That overseas exposure means yen depreciation continues to act as a powerful support for returns, with MSCI's quintile analysis showing stronger performance when the currency is in its weaker ranges relative to its 36-month average.

Japan's sector structure also differs materially from broader developed market benchmarks. Industrials make up roughly 25% of the MSCI Japan Index, more than double their 10% weight in MSCI Kokusai, while information technology accounts for around 18% in Japan versus more than 30% in Kokusai. MSCI notes that much of Japan's exposure to semiconductor equipment, robotics and precision components sits within industrials, meaning standard sector labels may understate the market's link to the global technology cycle.

Corporate fundamentals remain mixed. Dividend payouts are rising and capital efficiency efforts backed by the Tokyo Stock Exchange are influencing company behavior, but the profitability gap with the rest of the developed world has widened and Japan's price-to-book discount has reached its widest reading. Return on equity has improved to roughly 12% from around 9%, but gains elsewhere in developed markets, especially among large U.S. technology companies, have been stronger.

In our earlier article on the surge in U.S. Treasury yields above 5.2%, we broke down the key forces behind the move—sticky inflation, resilient growth, and deficit concerns—and why markets were fixated on upcoming inflation and jobs data. We also explained how higher yields ripple through the economy by lifting mortgage, consumer, and corporate borrowing costs, tightening financial conditions and potentially challenging equity valuations.

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