Will Japan's interest rate hike trigger a global liquidity shock?
As the Bank of Japan’s monetary policy meeting approaches on December 19, market concerns about a possible hawkish rate hike are intensifying. Will this move end the era of cheap yen and trigger a global liquidity crisis? Western Securities released its latest strategy report on December 16, providing an in-depth analysis.
High Inflation, Hawkish Rate Hike Inevitable in Japan
The report points out that there are multiple driving factors behind the Bank of Japan’s possible rate hike. Firstly, Japan’s CPI has persistently exceeded the official 2% inflation target. Secondly, the unemployment rate has remained below 3% for a long time, creating favorable conditions for nominal wage growth, and the market has high expectations for wage increases in next year’s “Shunto” (spring labor negotiations), which will further drive inflationary pressure. Lastly, Sanae Takaichi’s 21.3 trillion yen fiscal policy may also contribute to inflation.
These factors are collectively forcing the Bank of Japan to take a more hawkish stance. The market worries that once the rate hike takes place, it will trigger a mass unwinding of the large-scale “carry trades” accumulated during Japan’s YCC (Yield Curve Control) era, causing a liquidity shock to global financial markets.

Theoretical Analysis: Why Has the Most Dangerous Phase of Liquidity Shock Likely Passed?
Despite market concerns, the report analyzes that theoretically, the global liquidity impact of Japan’s current rate hike is limited.
The report gives four reasons:
- Risks Partially Released: The Bank of Japan has already raised rates three times since last March. Notably, the July hike last year, combined with exiting YCC, did cause a significant liquidity shock, but the impact of the January hike this year was noticeably weaker, suggesting that the market is adapting.
- Speculative Funds Already Exited: According to futures market data, most speculative short positions on the yen were closed in July last year. This means the most active “carry trades” that could trigger chain reactions have already subsided, and the most dangerous phase of liquidity shocks has passed.
- Different Macro Environment: The US is not experiencing a “recession trade” similar to July last year, so there is little pressure on the dollar to depreciate, while the yen itself remains weak due to geopolitical and debt concerns. This diminishes expectations for yen appreciation and eases the urgency for unwinding “carry trades.”
- Fed’s “Safety Cushion”: The report specifically notes that the Federal Reserve is now paying attention to potential liquidity risks and has begun to expand its balance sheet (quasi-QE), which can effectively stabilize market liquidity expectations and provide a buffer for the global financial system.


Actual Risks: The “Catalyst” in a Fragile Market
The report emphasizes that theoretical safety does not mean there is nothing to worry about. The real source of risk lies in the current fragility of global markets, making Japan’s rate hike a potential “catalyst”.
The report analyzes that the huge market shock from Japan’s rate hike last July was due to the confluence of “mass unwinding of active carry trades” and “US recession trades.” Currently, the former factor has weakened. However, new risks are emerging: global equity markets, led by US stocks, have experienced a “bull super-cycle” lasting six years, accumulating significant profits and exhibiting fragility. At the same time, concerns about a potential “AI bubble” in the US are resurfacing, and risk aversion is growing among investors.
Currently, global equity markets led by US stocks have already seen a six-year “super bull run,” which has inherent fragility. At the same time, renewed concerns about a US “AI bubble” have heightened risk aversion, making a yen rate hike a possible “catalyst” for triggering a global liquidity shock.
Against this backdrop, the Bank of Japan’s rate hike, a certainty, likely becomes a trigger for panic capital flight and a global liquidity shock. However, the report also offers a relatively optimistic view: it is highly probable that such a liquidity shock would force the Federal Reserve to adopt more aggressive easing policies (QE), so after a brief sharp drop, global stock markets will likely recover quickly.

Watch More, Act Less—Focus on “Triple Kill” Signals in Stocks, Bonds, and FX
Facing such a complex situation, the report recommends that investors “watch more, act less”.
The report believes that the Bank of Japan’s decision is basically “out in the open”, but capital flows are hard to predict, so the best strategy is to observe.
- Scenario 1: If there is no sign of panic capital flight, the actual impact of the rate hike will be very limited, and investors need not take action.
- Scenario 2: If panic does cause a global liquidity shock, investors should closely monitor one key signal—whether the US market experiences 2-3 consecutive “triple kill” events (simultaneous declines in the stock, bond, and currency markets). If, as the report notes, a situation similar to early April this year recurs, it indicates a significantly increased probability of a liquidity shock.

Finally, the report concludes that even if Japan’s rate hike triggers short-term volatility, it will not change the global medium- and long-term trend of monetary easing. Against this backdrop, gold remains strategically valuable. Additionally, with China’s export surplus expanding and the Federal Reserve cutting rates again, the RMB exchange rate is expected to return to a long-term appreciation trend, accelerating cross-border capital flows and benefiting Chinese assets. The report is optimistic about AH shares and expects them to enjoy the “Davis Double Play” of profit and valuation. For US stocks and US treasuries, the report maintains a view of volatility.
Risk Warning and DisclaimerThe market has risks; investment requires caution. This article does not constitute personal investment advice and does not take into account the individual investment goals, financial situation, or needs of any particular user. Users should consider whether any opinions, views, or conclusions mentioned herein fit their specific circumstances. Investments made on this basis are at one’s own risk.