Is the Bank of Japan about to raise interest rates, and can the AI bull market still hold up?

Title: The Bank of Japan's Rate Hike Is Imminent—Can the AI Bull Market Hold Up?

Author: Rhythm BlockBeats

Source:

Repost: Mars Finance

TL;DR

If you regularly follow the price movements of Nvidia, Microsoft, Bitcoin, or Ethereum, you usually focus on key variables such as U.S. inflation data, Federal Reserve interest rate policy paths, AI-related revenue realization, and on-chain capital flows. But this week, market attention has been diverted by a seemingly more distant variable: the direction of the Bank of Japan's interest rates.

The reason isn't complicated. For many years, the yen has been one of the cheapest financing currencies globally. Investors can borrow low-interest yen, exchange it for dollars or other currencies, and then buy higher-yielding, larger-gain assets. This is yen arbitrage trading—simply put, borrowing low-interest yen to buy high-yield assets.

It may not directly appear in a specific AI stock or Bitcoin address, but it influences global risk appetite and leverage costs. Now, the Bank of Japan is exiting its long-term ultra-low interest rate environment, and the market is recalculating how long this "low-interest credit card" can be used.

According to Reuters on June 10, out of 70 economists, 66 expect the Bank of Japan to raise its policy rate from 0.75% to 1.0% at the June meeting. In another survey, 53 out of 67 economists forecast the rate will rise to 1.25% by the end of the year. The meeting concludes on June 16, and as of June 15, 1.0% remains the consensus among economists, not an official announcement.

25 basis points may seem small. The market's concern isn't just "Japan's interest rate hitting 1%," but whether assets that have relied on cheap funding, crowded positions, and high risk appetite will be re-priced once cheap money starts to become expensive. Big tech in AI and crypto are the most sensitive endpoints on this chain.

The Bank of Japan's influence is on the foundation of global financing

Yen arbitrage trading can be understood as a low-interest credit card. As long as borrowing costs are low enough, exchange rates are stable enough, and target assets appreciate quickly enough, investors are willing to leverage using this card. The yen has long played the role of this global credit card.

This card is important because it doesn't just serve the Japanese market. Cheap yen can be exchanged for dollars, entering U.S. stocks, bonds, emerging markets, and commodities, indirectly affecting risk appetite in the crypto market. When global asset prices rise, arbitrage trading amplifies liquidity. When the yen appreciates or Japanese rates rise, this chain reverses, forcing some funds to reduce positions, repay debt, and lower leverage.

Therefore, investors shouldn't judge its market impact solely based on "Japan's economic size." The change isn't about the profitability outlook of a specific domestic industry but about a long-term low-cost financing foundation in the global funding map.

The April meeting already signaled this. At that time, the Bank of Japan maintained the unsecured overnight call rate at about 0.75%, but the voting result was 6 to 3, with three members advocating an immediate rise to about 1.0%. In the same month's outlook report, the BOJ lowered its forecast for real GDP in fiscal 2026 to 0.5% and raised its core CPI forecast to 2.8%. The policy discussion shifted from whether to normalize to how fast normalization should occur.

Market consensus remains moderate: the BOJ will gradually raise rates, with ample communication, and some yen arbitrage trades have already been unwound in recent volatility. But the risk framework considers another matter. As long as leverage remains, the trigger for volatility is often not the absolute level of interest rates but the speed of changes in yield spreads and exchange rate expectations.

This speed is crucial for AI stocks and crypto. Both are high-beta assets, meaning their prices are more elastic. They tend to surge in liquidity-favorable environments and fall faster when risk appetite declines. Leading AI companies have real revenue and industry trends backing them, Bitcoin has ETFs, halving cycles, and on-chain structures, but their marginal pricing still heavily depends on global risk appetite.

When cheap money diminishes, the market may not immediately deny the AI narrative or crypto story but could lower the valuation multiples investors are willing to pay for future growth.

25 basis points amplified by leverage and exchange rates

Looking solely at 25 basis points, Japan's rate hike doesn't seem to threaten global assets. The issue is that arbitrage trading isn't just about comparing deposit and loan rates but involves a system of leverage, exchange rates, and crowded positions layered together.

A typical yen arbitrage trade has three sources of return: low borrowing costs in yen, high yields on purchased assets, and the risk of yen not appreciating or even depreciating. As long as these three conditions hold, the trade is comfortable. When Japanese rates rise, the first layer of return is compressed. If the market begins to expect yen appreciation, the third layer becomes a risk. Investors are not only earning less but could also lose money on exchange rate movements.

This explains why 1% isn't necessarily scary, but moving from 0.75% to 1.0%, and then market expectations of 1.25% by year-end, can alter capital calculations. The biggest risk isn't slow cost increases but the collective realization that a trade is no longer profitable, leading to a rush to unwind.

Unwinding can transmit domestic Japanese policy to global risk assets. Investors may buy back yen to repay debt, selling off dollar assets, tech stocks, crypto, commodities, or emerging market positions. If many funds do this simultaneously, falling prices can trigger more risk controls, margin calls, and volatility adjustments, creating a secondary amplification.

The IMF's April 2026 Global Financial Stability Report warns that unwinding arbitrage trades can amplify market volatility through capital flows, bond yield fluctuations, leveraged ETFs, and non-bank deleveraging. The key isn't that a single decline is caused solely by the BOJ but that this mechanism exists and can intensify shocks during liquidity stress.

Over the past two years, markets have repeatedly seen similar phenomena: momentum stocks, AI tech stocks, and Bitcoin moving in sync without clear new Fed signals or company-specific deterioration. Institutional analysis often attributes this to yen arbitrage unwinding. Strictly speaking, this only proves high correlation and plausible mechanisms, not a direct causal link. But for trading, the correlation and transmission mechanisms are already enough to be risk variables.

Market is trading on higher financing thresholds

More precisely, the market isn't just saying "Japan's rate hike destroys AI," but rather "the financing threshold for global risk assets is rising." These are two different things.

AI's fundamentals still have their own story: cloud providers' capital expenditure, GPU demand, model deployment, enterprise software revenue—these are the long-term drivers for Nvidia, Microsoft, and others. Bitcoin also has its own story: ETF inflows, regulatory frameworks, macro hedging narratives, and on-chain supply structures. The BOJ won't replace these variables.

But in high-valuation phases, fundamentals answer whether there's long-term value, while liquidity answers how much multiple the market is willing to pay for that future. When global low-cost financing is abundant, investors are more willing to pay a premium for future growth. When financing costs rise and risk appetite declines, the same growth story may be discounted more heavily.

This is the meaning of implicit financing costs. It may not show up as a company's loan rate rising or a fund directly borrowing yen. It’s more like the overall market leverage temperature: when money is cheap, investors chase high-volatility assets; when money gets expensive, tolerance for losses, future profits, and valuation bubbles decreases.

Therefore, the significance of this BOJ meeting isn't whether 1% is a high rate. In the U.S. or many emerging markets, 1% isn't high. But in the context of yen as a global funding currency, it signals a directional shift. A long-standing pipeline of cheap leverage is moving from ultra-low to normal costs.

"Most of the arbitrage trades have already unwound" doesn't mean risk has disappeared. Some trades have indeed reduced positions in recent volatility, and markets have priced in the June rate hike expectations. But as long as bank systems, offshore yen lending, and non-bank leverage still have residual exposure, prices will remain sensitive to the pace of normalization.

More importantly, the yen is just one visible anchor. Over the past few years, global risk assets haven't relied solely on the Fed but also on various low-cost funding currencies, offshore liquidity, and cross-market leverage. When these sources of financing become less cheap simultaneously, even if the Fed turns to easing, it may not fully offset the marginal tightening in other currency systems.

Post-decision, watch the linkage between yen, Japanese bonds, and high-beta assets

The key test is clear: after the June 16 BOJ decision, will the market simply "buy the expectation, sell the fact," or start repricing a faster normalization path?

If the BOJ raises rates to 1.0% as expected but with dovish language, and USD/JPY remains stable, with tech stocks and crypto unaffected, it suggests the market has already digested the policy. The focus remains on AI revenue, Fed path, and U.S. earnings cycle, with Japanese factors as short-term disturbances.

If the decision or post-meeting comments lead the market to price in a 1.25% or higher rate by year-end, with rapid yen appreciation, rising Japanese bond yields, and synchronized moves in Nvidia, other momentum tech stocks, BTC, and ETH, it indicates traders are not just reacting to 25 basis points but are unwinding the yen leverage chain again.

Next, monitor the price linkages: does a stronger yen coincide with weakness in high-beta assets? Does volatility rise without new U.S. negative news? Do leveraged ETFs and crowded momentum stocks come under pressure first? If these signals occur together, the BOJ isn't just the BOJ—it's a reminder that the global cheap money map is becoming more expensive.