The Nikkei 225 closed at 65,018.95, up 1.38%, after the Bank of Japan raised its policy rate by 25 basis points to 1.25%, the highest level in 31 years. What makes this move interesting is that the market reaction was not uniformly defensive. The yen weakened beyond 157 per dollar, while Japanese equities moved higher. The BOJ decision was also divided 7–2, which helped the market interpret the move as less aggressive than a straightforward tightening signal.

Looking underneath the index, three groups tell three different stories: semiconductors, power and real estate.

Semiconductors remain closely connected to the global AI cycle. Japanese names such as Tokyo Electron, Advantest, Kioxia and Lasertec are exposed to semiconductor equipment, memory and AI-related investment. The weaker yen can also support internationally exposed Japanese companies because overseas earnings become more valuable when translated back into yen.

So even though domestic rates are rising, the semiconductor group still has a separate global growth driver behind it. For this sector, the numbers I would keep tracking are daily volume, price relative to recent highs, semiconductor index performance and U.S. chip-sector momentum. If those remain strong together, the leadership is being supported by more than just the Nikkei's headline move.

Power stocks are a different setup.

Higher rates can increase financing costs for utilities, especially businesses that require large amounts of capital for infrastructure. At the same time, Japan's electricity demand has a structural tailwind from AI infrastructure and data centers, while nuclear restarts and changes in power pricing can influence earnings expectations.

That leaves the power sector caught between two forces: higher financing costs on one side and rising long-term electricity demand on the other. This is why the sector needs to be tracked through individual earnings, power prices and capital spending rather than simply labeling it defensive.

Then comes the most rate-sensitive part of this comparison: real estate.

At first glance, higher rates should be a straightforward negative for Japanese property stocks because developers and REITs face higher financing costs and investors can demand higher returns from property assets.

But the latest land-price data adds another layer.

Japan's nationwide land prices increased 1.5% year over year to July 1, marking the fifth consecutive annual increase. Tokyo metropolitan land prices rose 5.4%, while Osaka increased 3.6%. That is important for property companies because stronger land prices can increase asset values and support rental pricing.

Individual property stocks also showed that the sector is not moving as one block. On September 16, Mitsui Fudosan, Japan's largest real-estate developer by market capitalization, was around flat after trimming early gains, while Hulic gained 0.8% and Mitsubishi Estate and Sumitomo Realty gained roughly 1%–2% during that session.

The REIT picture is more cautious. As of September 19, the Japanese REIT industry had fallen around 1% over seven days and 17% year-to-date, with the sector's market capitalization around ¥4.2 trillion. That divergence is important: physical land prices can continue rising while listed REIT valuations remain under pressure from the higher-rate environment.

There is also evidence that the underlying property market remains active. Tokyo office vacancy was recently reported at around 1.5%, while Tokyo office rents reached a fresh three-decade high. At the same time, rising construction costs are creating a constraint for some new projects.

So the Japanese market is becoming a story of different transmission channels.

Semiconductors are responding mainly to global AI demand and the yen. Power stocks are balancing infrastructure demand against financing costs. Real estate is balancing rising land values and rents against higher rates and REIT valuation pressure.

For me, the clean dashboard from here is Nikkei 225 + USD/JPY + Japanese yields + semiconductor volume + power-sector performance + property stocks and REIT performance.

The point is that a rising Nikkei does not mean every sector has the same setup. AI is supporting semiconductors, structural electricity demand is keeping power stocks relevant, while real estate is being tested by the direct impact of higher rates even as Japanese land and rental markets remain firm.

That sector divergence is where the next stage of Japanese equity rotation becomes visible. @Gate_Square
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