Oil surge buoys value stocks, leaving Tokyo's Nikkei down but TOPIX higher

Tokyo stocks exhibited a clear pattern of sector divergence and a tug-of-war between bulls and bears today, with the TOPIX closing higher against the trend, while the benchmark Nikkei average came under heavy selling pressure, ending the session down 0.8 percent. The market performance of this trading day vividly reflects the jittery nerves of the current global financial market amid macroeconomic variables and valuation corrections in the technology sector. On one hand, rising international crude oil prices provided strong support for value stocks such as traditional energy and general trading companies, driving the TOPIX upward. On the other hand, technology stocks looked vulnerable under the shadow of Wall Street's super week of corporate earnings, as investor skepticism regarding the return on investment in artificial intelligence continued to spread, dragging down the performance of the Nikkei average—which carries a higher weighting of tech stocks—and creating an unusual divergence where the TOPIX rose while the Nikkei fell.

Delving into the internal momentum driving the TOPIX to a higher close, the trajectory of the international crude oil market played a pivotal role. Recent turmoil in Middle East geopolitics and the output policies of major global oil-producing nations have continued to influence international oil prices to fluctuate in relatively high ranges. Higher oil prices directly benefited energy exploration stocks and large general trading companies in the Tokyo market. Backed by high cash flows and robust dividend policies, these enterprises became vital targets for capital hedging and the pursuit of tangible returns amid market uncertainty. Furthermore, Japanese companies' recent proactive implementation of corporate governance reforms—enhancing return on equity and share buyback policies—allowed value and cyclical stocks to act as a stabilizing anchor within the TOPIX, offsetting some of the downward pressure from the tech sector.

In contrast, the performance of the Nikkei 225 index was much more subdued. The Nikkei's constituent structure includes a large number of high-tech manufacturing industries, semiconductor equipment makers, and AI-related concept stocks, whose share prices are highly correlated with the performance of the US Nasdaq index and the Philadelphia Semiconductor Index. As several heavyweight US tech giants prepare to release their latest quarterly earnings, market anxiety has reached a boiling point. Wall Street analysts and institutional investors have recently raised persistent questions regarding enterprises' massive capital expenditures in the artificial intelligence sector, with market concerns focusing on whether billions poured into building data centers and AI infrastructure can be translated into corresponding revenue and profit growth in the short term. Such doubts over whether the "AI craze is overheating" quickly crossed the Pacific and rippled through the Tokyo stock market, leading investors to dump Japanese semiconductor supply chains, major electronic component manufacturers, and tech stocks, making them the primary culprit behind the Nikkei's decline.

From the macro perspective of general economics and monetary policy, recent moves by the Bank of Japan and fluctuations in the foreign exchange market are equally inescapable background factors influencing the direction of Japanese stocks. The Bank of Japan is gradually moving toward the normalization of its monetary policy, and every step taken since ending its negative interest rate policy has been closely watched by global investors. While the recent consolidation of the yen exchange rate at lower levels provides substantive foreign exchange gains that support the earnings of export-oriented Japanese automakers and manufacturing enterprises, rising import costs also exert pressure on the domestic consumer market. Amid intertwined domestic and international macroeconomic variables, foreign investors' positioning in Japanese stocks has turned cautious, favoring stock selection over the broader market. This shift in capital allocation represents the deep structural reason behind today's divergent trajectories of the TOPIX and the Nikkei.

Looking ahead to the future direction of the Japanese stock market, market participants generally believe that short-term volatility and sector rotation will become even more intense. The ultimate scorecard of earnings reports from US large-cap tech companies, along with their outlook on future AI capital expenditures, will directly determine the next wave of bullish or bearish direction for global tech stocks and will undoubtedly continue to dictate the short-term fate of the Nikkei index. Meanwhile, the staying power of international oil prices, the pace of China's economic recovery, domestic corporate earnings performances, and the progress of wage negotiations will collectively shape the trajectory blueprint for Japanese stocks in the second half of this year. For investors, achieving a balance between value stocks and growth stocks will be an essential subject in adapting to the current polarized landscape of the Japanese stock market.