On one hand, the Nikkei 225 index hit 67,000 points for the first time, soaring nearly 30% during the year. SoftBank surpassed Toyota to become the largest market capitalization in Japan. The memory chip stock Kioxia rose five times in a year. On the other hand, the yen approached the 160 life-and-death line, the 30-year Japanese bond yield exceeded 4%, hitting a record high, and the debt-foreign exchange double play intensified. The Japanese financial market in June 2026 is undergoing the most extreme "ice and fire" situation of this century. Wmax's global macro research team uses a self-built cross-asset linkage tracking system, combined with the latest market data, policy trends and global capital flows, to dismantle the underlying logic of this differentiated market and the fatal risks hidden behind the carnival.

Extreme polarization: heaven on one side and hell on the other

Let’s first look at a set of the latest market data to intuitively experience this magical split:

• Stock Market: Epic Bull Market: On June 2, the Nikkei 225 Index exceeded 67,000 points, with a cumulative increase of nearly 30% during the year, far exceeding the world's major stock indexes; SoftBank surged 8% in a single day, with a market capitalization of 46 trillion yen, officially replacing Toyota as Japan's "biggest market capitalization brother"; memory chip manufacturer Kioxia rose as much as 525% during the year, becoming Japan's third listed company in market capitalization.
• Debt exchange: collective collapse: As of the close on June 3, the U.S. dollar was trading at 159.52 against the yen, down 1.7% in the past month, making it the worst-performing currency among the G10 currencies; the Japanese bond sell-off continued to escalate, with the 30-year Japanese bond yield breaking the 4% mark. The 20-year and 40-year Japanese bond auctions continued to be cold, with subscription multiples falling to historical freezing points. The market has begun to reprice Japan's fiscal solvency.

The worse the stock market rises, the worse the bond exchange rate falls. This rare deviation of "double kill of debt and foreign exchange + skyrocketing stock market" is by no means a signal of a reversal of Japan's economic fundamentals, but a "false prosperity" spurred by monetary illusion, technological waves and global arbitrage.

The truth about the debt-foreign exchange double-kill: Intervention cannot save the yen, and interest rate hikes are the only antidote

Why do the yen and Japanese bonds keep falling? The Wmax cross-asset tracking system has detected that the core of this round of debt-foreign exchange double-play is the superposition of two major contradictions, and simple exchange rate intervention has been unable to save the day.

The interest rate differential between the United States and Japan is inverted, and the Japanese yen has become a global “financing tool”

Although the Bank of Japan has raised its policy interest rate to 0.75%-1.00%, Japan's core inflation has been above 2% for 50 consecutive months, and real interest rates are still deep in negative territory. In contrast, in the United States, sticky inflation has prevented the Federal Reserve from lowering interest rates. The real interest rate differential between the United States and Japan continues to widen, and the Japanese yen has completely become the "financing currency" for global carry trades.

CFTC position data monitored by Wmax shows that the current short positions of yen in leveraged funds have risen to the highest level since July 2024, with the peak size of speculative short orders reaching $182 billion. In other words, global funds are borrowing Japanese yen and buying high-yield assets, which is the core driver of the continued depreciation of the Japanese yen.

Crazy fiscal expansion, sovereign credit is questioned

After the Takaichi Sanae government came to power, it launched a record budget of 122 trillion yen and implemented large-scale tax cuts, which directly pushed Japan's total debt to 1342 trillion yen, with the debt ratio exceeding 260%, ranking first in the world. What's even more fatal is that the Bank of Japan is launching quantitative tightening and halving the size of its bond purchases. The market has lost the "buyer of last resort". Investors began to demand higher risk premiums to cover Japan's fiscal risks. The current round of Japanese bond selling has changed from a simple "inflation trade" to a repricing of Japan's sovereign credit.

Regarding the question that the market is most concerned about, "whether there will be intervention", the Wmax policy expectation monitoring framework gives a clear judgment: intervention can only buy time and cannot reverse the trend. Japan's Ministry of Finance has previously injected record funds to support the market, but the marginal effect is getting weaker and weaker. Current OIS interest rate pricing shows that the probability of the Bank of Japan raising interest rates by 25 basis points at its June 16 meeting has risen to 78%. Only a combination of interest rate hikes and intervention can temporarily halt the yen's decline, otherwise it will only be a matter of time before it falls below 160.

The reason for the stock market carnival: It’s not that the economy is good, it’s that the yen has depreciated enough

The surge in the stock market may seem eye-catching, but if you peel back the coat, you will find that this bull market has almost nothing to do with Japan’s domestic economy. Wmax deeply dissected the core drivers of the rise in Japanese stocks and found that three major factors jointly supported this false prosperity:

“Financial Reporting Illusion” Generated by Currency Depreciation

Among the Nikkei 225 constituent stocks, the overseas revenue of giants such as Toyota and Sony generally accounts for more than 50%. The depreciation of the yen from 130 to 160 means that these companies made more than 20% more overseas profits out of thin air when converted into yen.

This pure exchange gain conceals the real pressure of weak domestic demand and rising costs in Japan, supports the seemingly brilliant EPS growth, and has become the most direct "fundamental excuse" for the bull market.

The AI ​​wave + the dual support of corporate governance reform

The PBR reform promoted by the Tokyo Stock Exchange has forced Japanese companies to buy back shares on a large scale and increase dividends. The expectation of improved corporate governance has attracted a large amount of global value capital. More importantly, the semiconductor equipment and AI sectors, which are heavily weighted by Japanese stocks, have just caught up with the global computing power wave. SoftBank, which is betting on OpenAI, and Kioxia, which has benefited from the explosion of data center storage demand, have become the core targets of funding, and the trend is completely divorced from Japan's domestic economic cycle.

The “arbitrage game” of global funds

Long-term funds represented by Buffett have long understood the Japanese market's routine: "long Japanese stocks + short yen." They issued low-interest yen bonds to acquire Japanese trading companies, while earning dividend income and exchange gains from the depreciation of the yen, making money from both ends. This cross-market arbitrage strategy has become the standard for global macro trading in 2026. The continuous influx of funds has given Japanese stocks resilience beyond fundamentals.

When the carnival finally comes to an end: Two major risks must be guarded against

The Wmax macro team determines that the current extreme polarization of "bonds and exchange rates falling and stock markets rising" is an extremely dangerous transitional state and is by no means a long-term stable state. Once the following two risks are triggered, this carnival will collapse instantly:

Bank of Japan raises interest rates more than expected, popping stock market bubble

The prosperity of Japanese stocks is entirely based on the continued depreciation of the yen. If the depreciation of the yen exceeds the bottom line of people's livelihood, triggers hyperinflation, and forces the Bank of Japan to raise interest rates significantly beyond expectations, the balance will be broken instantly:

• The appreciation of the yen will cause the company's exchange gains to disappear and profits to shrink significantly;
• The unwinding of carry trades will trigger a violent reversal in global capital flows, and the Japanese stock valuation bubble will be quickly punctured.

Japanese bond market turmoil triggers global financial tsunami

As the world's largest creditor nation, Japan holds more than $3 trillion in overseas assets. If Japanese bond yields continue to surge, Japanese insurance companies, banks and other institutions will sell overseas assets such as US and European bonds on a large scale in order to supplement domestic liquidity, transmitting Japan's fiscal risks to the global bond market and further exacerbating the pressure of the global high interest rate environment.

Finally: June 16, the key node that determines fate

In the short term, the Bank of Japan policy meeting on June 16 will be a key turning point in this divergent market. If the central bank raises interest rates as scheduled and releases a hawkish signal, coupled with the simultaneous intervention of the Ministry of Finance in the foreign exchange market, the yen is expected to receive short-term support; however, if the policy intensity is less than expected, it will be a high probability event that the yen falls below 160 and Japanese bond yields continue to rise. For ordinary investors, do not blindly follow the trend of chasing Japanese stocks. This bull market based on currency depreciation may usher in a reversal at any time. Wmax will continue to monitor the capital flow and policy trends in the Japanese market through the cross-asset tracking system, and alert you to risks and seize opportunities as soon as possible.